Bump revision up to 0.7.3

Little code cleanup
Skip GetMachineId test when /etc/machine-id is not available
2026-08-28 16:02:37 +02:00 · 2019-10-13 15:39:32 +02:00 · 2019-10-11 16:04:37 +02:00 · 2019-10-11 15:56:00 +02:00 · 2019-10-08 22:09:05 +02:00 · 2019-10-06 11:28:16 +02:00
101 changed files with 3219 additions and 1183 deletions
@@ -7,9 +7,9 @@ build/
 .deps/
 .dirstamp
 .libs/
-test/libsdbus-c++_unittests
-test/libsdbus-c++_integrationtests
-test/run-test-on-device.sh
+tests/libsdbus-c++_unittests
+tests/libsdbus-c++_integrationtests
+tests/run-test-on-device.sh

 #eclipse
 .cproject
@@ -1,5 +1,7 @@
-The library:
-  Stanislav Angelovic (stanislav.angelovic[at]kistler.com)
+sdbus-c++ library:
+  Stanislav Angelovic (https://github.com/sangelovic)

-Stub generator:
-  Lukas Durfina (lukas.durfina[at]kistler.com)
+Code generator:
+  Lukas Durfina (https://github.com/lukasdurfina)
+
+... and other contributors :)
@@ -2,26 +2,38 @@
 # PROJECT INFORMATION
 #-------------------------------

-cmake_minimum_required(VERSION 3.8)
+cmake_minimum_required(VERSION 3.6)

-project(sdbus-c++ VERSION 0.6.0 LANGUAGES C CXX)
+project(sdbus-c++ VERSION 0.7.3 LANGUAGES C CXX)

 include(GNUInstallDirs) # Installation directories for `install` command and pkgconfig file

 #-------------------------------
-# PERFORMING CHECKS
+# PERFORMING CHECKS & PREPARING THE DEPENDENCIES
 #-------------------------------

-find_package(PkgConfig REQUIRED)
-pkg_check_modules(SYSTEMD REQUIRED libsystemd>=236)
+option(BUILD_LIBSYSTEMD "Build libsystemd static library and incorporate it into libsdbus-c++" OFF)
+
+if(NOT BUILD_LIBSYSTEMD)
+    find_package(PkgConfig REQUIRED)
+    pkg_check_modules(SYSTEMD libsystemd>=236)
+    if(NOT SYSTEMD_FOUND)
+        message(FATAL_ERROR "libsystemd of version at least 236 is required, but was not found "
+                            "(you may turn BUILD_LIBSYSTEMD on for sdbus-c++ to try downloading "
+                            "and building libsystemd in as part of sdbus-c++ during configuration)")
+    endif()
+else()
+    # Build static libsystemd library as an external project
+    include(cmake/LibsystemdExternalProject.cmake)
+endif()

 #-------------------------------
 # SOURCE FILES CONFIGURATION
 #-------------------------------

-set(SDBUSCPP_SOURCE_DIR ${CMAKE_SOURCE_DIR}/src)
+set(SDBUSCPP_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/src)
 set(SDBUSCPP_INCLUDE_SUBDIR sdbus-c++)
-set(SDBUSCPP_INCLUDE_DIR ${CMAKE_SOURCE_DIR}/include/${SDBUSCPP_INCLUDE_SUBDIR})
+set(SDBUSCPP_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/include/${SDBUSCPP_INCLUDE_SUBDIR})

 set(SDBUSCPP_CPP_SRCS
    ${SDBUSCPP_SOURCE_DIR}/Connection.cpp
@@ -53,7 +65,7 @@ set(SDBUSCPP_PUBLIC_HDRS
    ${SDBUSCPP_INCLUDE_DIR}/IConnection.h
    ${SDBUSCPP_INCLUDE_DIR}/AdaptorInterfaces.h
    ${SDBUSCPP_INCLUDE_DIR}/ProxyInterfaces.h
-    ${SDBUSCPP_INCLUDE_DIR}/Introspection.h
+    ${SDBUSCPP_INCLUDE_DIR}/StandardInterfaces.h
    ${SDBUSCPP_INCLUDE_DIR}/IObject.h
    ${SDBUSCPP_INCLUDE_DIR}/IProxy.h
    ${SDBUSCPP_INCLUDE_DIR}/Message.h
@@ -69,10 +81,11 @@ set(SDBUSCPP_SRCS ${SDBUSCPP_CPP_SRCS} ${SDBUSCPP_HDR_SRCS} ${SDBUSCPP_PUBLIC_HD
 # GENERAL COMPILER CONFIGURATION
 #-------------------------------

-set(CMAKE_CXX_STANDARD 17)
-add_compile_options(-W -Wextra -Wall -pedantic)
-include_directories("${CMAKE_SOURCE_DIR}/include")
-include_directories("${CMAKE_SOURCE_DIR}/src")
+if(${CMAKE_VERSION} VERSION_LESS "3.8.0") 
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17")
+else()
+    set(CMAKE_CXX_STANDARD 17) # Supported in CMake>=3.8
+endif()

 #----------------------------------
 # LIBRARY BUILD INFORMATION
@@ -83,27 +96,35 @@ set(SDBUSCPP_VERSION "${PROJECT_VERSION}")

 option(BUILD_SHARED_LIBS "Build shared libraries (.so) instead of static ones (.a)" ON)

-add_library(sdbus-cpp OBJECT ${SDBUSCPP_SRCS})
-target_include_directories(sdbus-cpp PUBLIC ${SYSTEMD_INCLUDE_DIRS})
-target_compile_definitions(sdbus-cpp PRIVATE BUILDLIB=1)
+# Having an object target allows unit tests to reuse already built sources without re-building
+add_library(sdbus-c++-objlib OBJECT ${SDBUSCPP_SRCS})
+target_compile_definitions(sdbus-c++-objlib PRIVATE BUILDLIB=1)
+target_include_directories(sdbus-c++-objlib PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
+                                                   $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src>
+                                                   $<BUILD_INTERFACE:${SYSTEMD_INCLUDE_DIRS}>)
 if(BUILD_SHARED_LIBS)
-    set_target_properties(sdbus-cpp PROPERTIES POSITION_INDEPENDENT_CODE ON)
+    set_target_properties(sdbus-c++-objlib PROPERTIES POSITION_INDEPENDENT_CODE ON)
+endif()
+if(BUILD_LIBSYSTEMD)
+    add_dependencies(sdbus-c++-objlib LibsystemdBuildProject)
 endif()

-add_library(sdbus-c++ $<TARGET_OBJECTS:sdbus-cpp>)
+add_library(sdbus-c++ $<TARGET_OBJECTS:sdbus-c++-objlib>)
+target_include_directories(sdbus-c++ PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
+                                            $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>)
 set_target_properties(sdbus-c++
-    PROPERTIES
-    PUBLIC_HEADER "${SDBUSCPP_PUBLIC_HDRS}"
-    VERSION "${SDBUSCPP_VERSION}"
-    SOVERSION "${SDBUSCPP_VERSION_MAJOR}"
-    OUTPUT_NAME "sdbus-c++")
-target_link_libraries(sdbus-c++ ${SYSTEMD_LIBRARIES})
+                      PROPERTIES PUBLIC_HEADER "${SDBUSCPP_PUBLIC_HDRS}"
+                                 VERSION "${SDBUSCPP_VERSION}"
+                                 SOVERSION "${SDBUSCPP_VERSION_MAJOR}"
+                                 OUTPUT_NAME "sdbus-c++")
+target_link_libraries(sdbus-c++ PRIVATE ${SYSTEMD_LIBRARIES})

 #----------------------------------
 # INSTALLATION
 #----------------------------------

 install(TARGETS sdbus-c++
+        EXPORT sdbus-c++-targets
        RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} COMPONENT libraries
        LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} COMPONENT libraries
        ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} COMPONENT static_libraries
@@ -117,7 +138,7 @@ option(BUILD_TESTS "Build and install tests (default OFF)" OFF)

 if(BUILD_TESTS)
    enable_testing()
-    add_subdirectory("${CMAKE_SOURCE_DIR}/test")
+    add_subdirectory("${CMAKE_CURRENT_SOURCE_DIR}/tests")
 endif()

 #----------------------------------
@@ -127,17 +148,19 @@ endif()
 option(BUILD_CODE_GEN "Build and install interface stub code generator (default OFF)" OFF)

 if(BUILD_CODE_GEN)
-    add_subdirectory("${CMAKE_SOURCE_DIR}/stub-generator")
+    add_subdirectory("${CMAKE_CURRENT_SOURCE_DIR}/tools")
 endif()

 #----------------------------------
 # DOCUMENTATION
 #----------------------------------

-option(BUILD_DOC "Build doxygen documentation for sdbus-c++ API" ON)
+option(BUILD_DOC "Build documentation for sdbus-c++" ON)

 if(BUILD_DOC)
-    add_subdirectory("${CMAKE_SOURCE_DIR}/doc")
+    option(BUILD_DOXYGEN_DOC "Build doxygen documentation for sdbus-c++ API" OFF)
+    add_subdirectory("${CMAKE_CURRENT_SOURCE_DIR}/docs")
+    install(FILES README README.md NEWS COPYING ChangeLog AUTHORS DESTINATION ${CMAKE_INSTALL_DOCDIR})
 endif()

 #----------------------------------
@@ -145,15 +168,20 @@ endif()
 #----------------------------------

 include(CMakePackageConfigHelpers)
-set(SDBUSCPP_CONFIG_INSTALL_DIR ${CMAKE_INSTALL_LIBDIR}/cmake/sdbus-c++)

-configure_file(sdbus-c++-config.cmake.in sdbus-c++-config.cmake @ONLY)
-install(FILES ${CMAKE_BINARY_DIR}/sdbus-c++-config.cmake DESTINATION ${SDBUSCPP_CONFIG_INSTALL_DIR} COMPONENT dev)
+install(EXPORT sdbus-c++-targets
+        DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/sdbus-c++
+        NAMESPACE SDBusCpp::
+        COMPONENT dev)

-write_basic_package_version_file(sdbus-c++-config-version.cmake
-        VERSION ${PROJECT_VERSION}
-        COMPATIBILITY AnyNewerVersion)
-install(FILES ${CMAKE_BINARY_DIR}/sdbus-c++-config-version.cmake DESTINATION ${SDBUSCPP_CONFIG_INSTALL_DIR} COMPONENT dev)
+configure_package_config_file(cmake/sdbus-c++-config.cmake.in cmake/sdbus-c++-config.cmake
+                              INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/sdbus-c++)
+write_basic_package_version_file(cmake/sdbus-c++-config-version.cmake COMPATIBILITY SameMajorVersion)
+install(FILES ${CMAKE_CURRENT_BINARY_DIR}/cmake/sdbus-c++-config.cmake
+              ${CMAKE_CURRENT_BINARY_DIR}/cmake/sdbus-c++-config-version.cmake
+        DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/sdbus-c++
+        COMPONENT dev)

-configure_file(sdbus-c++.pc.in sdbus-c++.pc @ONLY)
-install(FILES ${CMAKE_BINARY_DIR}/sdbus-c++.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig COMPONENT dev)
+configure_file(pkgconfig/sdbus-c++.pc.in pkgconfig/sdbus-c++.pc @ONLY)
+install(FILES ${CMAKE_CURRENT_BINARY_DIR}/pkgconfig/sdbus-c++.pc
+        DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig COMPONENT dev)
@@ -54,7 +54,7 @@ v0.4.3

 v0.5.0
 - Redesign of the Connection model for scalability, thread-safety, simplicity and clarity
- [[Breaking ABI change]] Introduce support asynchronous invocation of D-Bus methods on client-side
+- [[Breaking ABI change]] Introduce support for asynchronous invocation of D-Bus methods on client-side
 - Revise and extend sdbus-c++ tutorial
 - Introduce stress tests that involve a D-Bus server and client interacting in dense communication in both sync and async ways
 - Compilation error fixes for older gcc versions
@@ -89,3 +89,33 @@ v0.6.0
 - Extend stress tests to allow testing safe initialization/deinitialization of objects and proxies
 - Fix gcc warnings
 - Use release v1.8.1 of googletest for tests
+
+v0.7.0
+- [[Breaking ABI change]] Added full support for ObjectManager, Properties and other standard D-Bus interfaces (Reordering virtual functions in interface classes)
+- sdbus-c++ now can automatically download, build and incorporate libsystemd static library, which makes things pretty easy in non-systemd environments
+- Minor changes in generated proxy/adaptor code:
+  * renamed interfaceName to INTERFACE_NAME to avoid potential naming clashes
+  * signal emitting methods now begin with "emit" prefix and capitalized first letter of signal name
+- sdbus-c++ file organization has been adjusted to comply to de-facto OSS project standards
+- Build system improvements -- moving towards more modern CMake
+- Using googletest from master branch instead of v1.8.1 which has THREADS_PTHREAD_ARG issue when cross-compiling
+- Documentation improvements
+- Minor changes (renamings) in the code generated by sdbus-c++-xml2cpp generator
+- Other minor fixes and internal design improvements
+
+v0.7.1
+- Fixed waiting in integration tests
+- Added object manager automatically in ObjectManager_adaptor constructor
+- Introduced support for unix fd type
+- Redesigned Message class hierarchy to be more idiomatic, clean and intent-revealing
+- Resolved a few clang-tidy warnings and suggestions
+- Extended the tutorial with info on standard D-Bus interfaces
+- Added protected non-virtual destructor in generated *_proxy/*_adaptor classes
+
+v0.7.2
+- Rewrite UnixFd implementation from plain UnixFd struct to full-ownership-semantics UnixFd class
+
+v0.7.3
+- Add ability to integrate with external event loops
+- Add getSenderName() method to Message
+- Skip GetMachineId integration test case when /etc/machine-id is not available
@@ -1,7 +1,7 @@
 Building:
  $ mkdir build
  $ cd build
-  $ cmake .. ${CONFIGURE_FLAGS_IF_NECESSARY}
+  $ cmake .. -DCMAKE_BUILD_TYPE=Release ${OTHER_CONFIG_FLAGS}
  $ make

 Installing:
@@ -1,7 +1,11 @@
 sdbus-c++
 =========

-sdbus-c++ is a C++ API library for D-Bus IPC, based on sd-bus implementation.
+sdbus-c++ is a high-level C++ D-Bus library for Linux designed to provide expressive, easy-to-use API in modern C++. It adds another layer of abstraction on top of sd-bus, a nice, fresh C D-Bus implementation by systemd.
+
+sdbus-c++ has been written primarily as a replacement of dbus-c++, which currently suffers from a number of (unresolved) bugs, concurrency issues and inherent design complexities and limitations. sdbus-c++ has learned from dbus-c++ and has chosen a different path, a path of simple yet powerful design that is intuitive and friendly to the user and inherently free of those bugs.
+
+Even though sdbus-c++ uses sd-bus library, it is not necessarily constrained to systemd and can perfectly be used in non-systemd environments as well.

 Building and installing the library
 -----------------------------------
@@ -11,12 +15,12 @@ The library is built using CMake:
 ```bash
 $ mkdir build
 $ cd build
-$ cmake .. ${CONFIGURE_FLAGS_IF_NECESSARY}
+$ cmake .. -DCMAKE_BUILD_TYPE=Release ${OTHER_CONFIG_FLAGS}
 $ make
 $ sudo make install
 ```

-### CMake configuration flags
+### CMake configuration flags for sdbus-c++

 * `BUILD_CODE_GEN` [boolean]

@@ -24,7 +28,11 @@ $ sudo make install

 * `BUILD_DOC` [boolean]

-  Option for building Doxygen documentation of sdbus-c++ API. If `BUILD_DOC` is enabled, the documentation must still be built explicitly through `make doc`. Default value: `ON`. Use `-DBUILD_DOC=OFF` to disable searching for Doxygen and building Doxygen documentation of sdbus-c++ API.
+  Option for including sdbus-c++ documentation files and tutorials. Default value: `ON`. With this option turned on, you may also enable/disable the following option:
+
+    * `BUILD_DOXYGEN_DOC` [boolean]
+
+      Option for building Doxygen documentation of sdbus-c++ API. If enabled, the documentation must still be built explicitly through `make doc`. Default value: `OFF`. Use `-DBUILD_DOXYGEN_DOC=OFF` to disable searching for Doxygen and building Doxygen documentation of sdbus-c++ API.

 * `BUILD_TESTS` [boolean]

@@ -42,12 +50,25 @@ $ sudo make install

      Path where the test binaries shall get installed. Default value: `/opt/test/bin`.

+* `BUILD_LIBSYSTEMD` [boolean]
+
+  Option for building libsystemd dependency library automatically when sdbus-c++ is built, and making libsystemd an integral part of sdbus-c++ library. Default value: `OFF`. Might be very helpful in non-systemd environments where libsystemd shared library is unavailable (see [Solving libsystemd dependency](docs/using-sdbus-c++.md#solving-libsystemd-dependency) for more information). With this option turned on, you may also provide the following configuration flag:
+
+    * `LIBSYSTEMD_VERSION` [string]
+
+      Defines version of systemd to be downloaded, built and integrated into sdbus-c++. Default value: `242`.
+
+* `CMAKE_BUILD_TYPE` [string]
+
+  This is a CMake-builtin option. Set to `Release` to build sdbus-c++ for production use. Set to `Debug` if you want to help further develop (and debug) the library :)
+
 Dependencies
 ------------

-* `C++17` - the library uses C++17 `std::uncaught_exceptions()` feature. When building sdbus-c++ manually, make sure you use a compiler that supports that feature.
-* `libsystemd` - systemd library containing sd-bus implementation. Systemd v236 at least is needed for sdbus-c++ to compile.
-* `googletest` - google unit testing framework, only necessary when building tests, will be downloaded and built automatically
+* `C++17` - the library uses C++17 `std::uncaught_exceptions()` feature. When building sdbus-c++ manually, make sure you use a compiler that supports that feature (gcc >= 6, clang >= 3.7)
+* `libsystemd` - systemd library containing sd-bus implementation. This library is part of systemd. Systemd at least v236 is needed. (In case you have a non-systemd environment, don't worry, see [Solving libsystemd dependency](docs/using-sdbus-c++.md#solving-libsystemd-dependency) for more information.)
+* `googletest` - google unit testing framework, only necessary when building tests, will be downloaded and built automatically.
+* `pkgconfig` - required for sdbus-c++ to be able to find some dependency packages.

 Licensing
 ---------
@@ -57,10 +78,10 @@ The library is distributed under LGPLv2.1 license.
 References/documentation
 ------------------------

-* [D-Bus Specification](https://dbus.freedesktop.org/doc/dbus-specification.html)
+* [Using sdbus-c++](docs/using-sdbus-c++.md) - *the* main, comprehensive tutorial on sdbus-c++
+* [Systemd and dbus configuration](docs/systemd-dbus-config.md)
+* [D-Bus Specification](https://dbus.freedesktop.org/docs/dbus-specification.html)
 * [sd-bus Overview](http://0pointer.net/blog/the-new-sd-bus-api-of-systemd.html)
-* [Tutorial: Using sdbus-c++](doc/using-sdbus-c++.md)
-* [Systemd and dbus configuration](doc/systemd-dbus-config.md)

 Contributing
 ------------
@@ -0,0 +1,55 @@
+find_program(MESON meson)
+find_program(NINJA ninja)
+
+if((NOT MESON) OR (NOT NINJA))
+    message(FATAL_ERROR "Meson and Ninja are required to build libsystemd")
+endif()
+
+find_library(GLIBC_RT_LIBRARY rt)
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(MOUNT mount)
+pkg_check_modules(CAP REQUIRED libcap)
+if (NOT CAP_FOUND)
+    find_library(CAP_LIBRARIES cap) # Compat with Ubuntu 14.04 which ships libcap w/o .pc file
+endif()
+
+set(LIBSYSTEMD_VERSION "242" CACHE STRING "libsystemd version (>=239) to build and incorporate into libsdbus-c++")
+
+if(NOT CMAKE_BUILD_TYPE)
+    set(LIBSYSTEMD_BUILD_TYPE "plain")
+elseif(CMAKE_BUILD_TYPE STREQUAL "Debug")
+    set(LIBSYSTEMD_BUILD_TYPE "debug")
+else()
+    set(LIBSYSTEMD_BUILD_TYPE "release")
+endif()
+
+if(LIBSYSTEMD_VERSION LESS "239")
+    message(FATAL_ERROR "Only libsystemd version >=239 can be built as static part of sdbus-c++")
+endif()
+if(LIBSYSTEMD_VERSION GREATER "240")
+    set(BUILD_VERSION_H ${NINJA} -C <BINARY_DIR> version.h)
+endif()
+
+include(ExternalProject)
+ExternalProject_Add(LibsystemdBuildProject
+                    PREFIX libsystemd-v${LIBSYSTEMD_VERSION}
+                    GIT_REPOSITORY    https://github.com/systemd/systemd.git
+                    GIT_TAG           v${LIBSYSTEMD_VERSION}
+                    GIT_SHALLOW       1
+                    UPDATE_COMMAND    ""
+                    CONFIGURE_COMMAND ${CMAKE_COMMAND} -E remove <BINARY_DIR>/*
+                              COMMAND ${MESON} --buildtype=${LIBSYSTEMD_BUILD_TYPE} -Dstatic-libsystemd=pic <SOURCE_DIR> <BINARY_DIR>
+                    BUILD_COMMAND     ${BUILD_VERSION_H}
+                          COMMAND     ${NINJA} -C <BINARY_DIR> libsystemd.a
+                    BUILD_ALWAYS      1
+                    INSTALL_COMMAND   ""
+                    LOG_DOWNLOAD 1 LOG_UPDATE 1 LOG_CONFIGURE 1 LOG_BUILD 1)
+
+ExternalProject_Get_property(LibsystemdBuildProject SOURCE_DIR)
+set(SYSTEMD_INCLUDE_DIRS ${SOURCE_DIR}/src)
+ExternalProject_Get_property(LibsystemdBuildProject BINARY_DIR)
+set(SYSTEMD_LIBRARY_DIRS ${BINARY_DIR})
+
+add_library(Systemd::Libsystemd STATIC IMPORTED)
+set_target_properties(Systemd::Libsystemd PROPERTIES IMPORTED_LOCATION ${SYSTEMD_LIBRARY_DIRS}/libsystemd.a)
+set(SYSTEMD_LIBRARIES Systemd::Libsystemd ${CAP_LIBRARIES} ${GLIBC_RT_LIBRARY} ${MOUNT_LIBRARIES})
@@ -0,0 +1,11 @@
+@PACKAGE_INIT@
+
+include("${CMAKE_CURRENT_LIST_DIR}/@PROJECT_NAME@-targets.cmake")
+check_required_components("@PROJECT_NAME@")
+
+# This is here for backwards-compatibility. Please use more modern target-based approach.
+set(SDBUSCPP_VERSION "@SDBUSCPP_VERSION@")
+set(SDBUSCPP_FOUND "TRUE")
+set_and_check(SDBUSCPP_INCLUDE_DIRS "@CMAKE_INSTALL_FULL_INCLUDEDIR@")
+set_and_check(SDBUSCPP_LIBRARY_DIR "@CMAKE_INSTALL_FULL_LIBDIR@")
+set(SDBUSCPP_LIBRARIES sdbus-c++)
@@ -1,17 +0,0 @@
-# Building doxygen documentation
-
-find_package(Doxygen)
-
-if(DOXYGEN_FOUND)
-    configure_file(${CMAKE_CURRENT_SOURCE_DIR}/Doxyfile.in ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile @ONLY)
-
-    add_custom_target(doc
-        COMMAND ${DOXYGEN_EXECUTABLE} ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile
-        WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
-        COMMENT "Generating API documentation with Doxygen"
-        VERBATIM)
-
-    install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/html DESTINATION ${CMAKE_INSTALL_DOCDIR} OPTIONAL)
-else()
-    message(WARNING "Documentation enabled, but Doxygen cannot be found")
-endif()
@@ -0,0 +1,25 @@
+# Building doxygen documentation
+
+find_package(Doxygen)
+
+if(BUILD_DOXYGEN_DOC)
+    if(DOXYGEN_FOUND)
+        configure_file(${CMAKE_CURRENT_SOURCE_DIR}/Doxyfile.in ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile @ONLY)
+
+        add_custom_target(doc
+            COMMAND ${DOXYGEN_EXECUTABLE} ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile
+            WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+            COMMENT "Generating API documentation with Doxygen"
+            VERBATIM)
+
+        install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/html DESTINATION ${CMAKE_INSTALL_DOCDIR} OPTIONAL)
+    else()
+        message(WARNING "Documentation enabled, but Doxygen cannot be found")
+    endif()
+endif()
+
+install(FILES sdbus-c++-class-diagram.png
+              sdbus-c++-class-diagram.uml
+              systemd-dbus-config.md
+              using-sdbus-c++.md
+        DESTINATION ${CMAKE_INSTALL_DOCDIR})
@@ -5,46 +5,109 @@ Using sdbus-c++ library

 1. [Introduction](#introduction)
 2. [Integrating sdbus-c++ into your project](#integrating-sdbus-c-into-your-project)
-3. [Header files and namespaces](#header-files-and-namespaces)
-4. [Error signalling and propagation](#error-signalling-and-propagation)
-5. [Design of sdbus-c++](#design-of-sdbus-c)
-6. [Multiple layers of sdbus-c++ API](#multiple-layers-of-sdbus-c-api)
-7. [An example: Number concatenator](#an-example-number-concatenator)
-8. [Implementing the Concatenator example using basic sdbus-c++ API layer](#implementing-the-concatenator-example-using-basic-sdbus-c-api-layer)
-9. [Implementing the Concatenator example using convenience sdbus-c++ API layer](#implementing-the-concatenator-example-using-convenience-sdbus-c-api-layer)
-10. [Implementing the Concatenator example using sdbus-c++-generated stubs](#implementing-the-concatenator-example-using-sdbus-c-generated-stubs)
-11. [Asynchronous server-side methods](#asynchronous-server-side-methods)
-12. [Asynchronous client-side methods](#asynchronous-client-side-methods)
-13. [Using D-Bus properties](#using-d-bus-properties)
-14. [Conclusion](#conclusion)
+3. [Solving libsystemd dependency](#solving-libsystemd-dependency)
+4. [Distributing sdbus-c++](#distributing-sdbus-c)
+5. [Header files and namespaces](#header-files-and-namespaces)
+6. [Error signalling and propagation](#error-signalling-and-propagation)
+7. [Design of sdbus-c++](#design-of-sdbus-c)
+8. [Multiple layers of sdbus-c++ API](#multiple-layers-of-sdbus-c-api)
+9. [An example: Number concatenator](#an-example-number-concatenator)
+10. [Implementing the Concatenator example using basic sdbus-c++ API layer](#implementing-the-concatenator-example-using-basic-sdbus-c-api-layer)
+11. [Implementing the Concatenator example using convenience sdbus-c++ API layer](#implementing-the-concatenator-example-using-convenience-sdbus-c-api-layer)
+12. [Implementing the Concatenator example using sdbus-c++-generated stubs](#implementing-the-concatenator-example-using-sdbus-c-generated-stubs)
+13. [Asynchronous server-side methods](#asynchronous-server-side-methods)
+14. [Asynchronous client-side methods](#asynchronous-client-side-methods)
+15. [Using D-Bus properties](#using-d-bus-properties)
+16. [Standard D-Bus interfaces](#standard-d-bus-interfaces)
+17. [Conclusion](#conclusion)

 Introduction
 ------------

-sdbus-c++ is a C++ wrapper library built on top of [sd-bus](http://0pointer.net/blog/the-new-sd-bus-api-of-systemd.html), a lightweight D-Bus client library implemented within systemd project. It provides D-Bus functionality on a higher level of abstraction, trying to employ C++ type system to shift as much work as possible from the developer to the compiler.
+sdbus-c++ is a C++ D-Bus library built on top of [sd-bus](http://0pointer.net/blog/the-new-sd-bus-api-of-systemd.html), a lightweight D-Bus client library implemented within [systemd](https://github.com/systemd/systemd) project. It provides D-Bus functionality on a higher level of abstraction, trying to employ C++ type system to shift as much work as possible from the developer to the compiler.

 sdbus-c++ does not cover the entire sd-bus API, but provides tools for implementing the most common functionality - RPC method calls, signals and properties. There is room for additions and improvements, as needed and when needed.

 Integrating sdbus-c++ into your project
 ---------------------------------------

-The library build system is based on CMake. The library provides a config file, so integrating it into your CMake project is rather straight-forward:
+The library build system is based on CMake. The library provides a config and an export file, so integrating it into your CMake project is sooo simple:

-```bash
+```cmake
+# First, find sdbus-c++
 find_package(sdbus-c++ REQUIRED)
+
+# Use the sdbus-c++ target in SDBusCpp namespace
+add_executable(exe exe.cpp)
+target_link_libraries(exe PRIVATE SDBusCpp::sdbus-c++)
 ```

 The library also supports `pkg-config`, so it easily be integrated into e.g. an Autotools project:

 ```bash
-PKG_CHECK_MODULES(SDBUSCPP, [sdbus-c++ >= 0.4],,
-    AC_MSG_ERROR([You need the sdbus-c++ library (version 0.4 or newer)]
+PKG_CHECK_MODULES(SDBUSCPP, [sdbus-c++ >= 0.6],,
+    AC_MSG_ERROR([You need the sdbus-c++ library (version 0.6 or newer)]
    [http://www.kistler.com/])
 )
 ```

 Note: sdbus-c++ library depends on C++17, since it uses C++17 `std::uncaught_exceptions()` feature. When building sdbus-c++ manually, make sure you use a compiler that supports that feature. To use the library, make sure you have a C++ standard library that supports the feature. The feature is supported by e.g. gcc >= 6, and clang >= 3.7.

+Solving libsystemd dependency
+-----------------------------
+
+sdbus-c++ depends on libsystemd, a C library that is part of [systemd](https://github.com/systemd/systemd) and that contains underlying sd-bus implementation.
+
+Minimum required libsystemd shared library version is 0.20.0 (which corresponds to minimum systemd version 236).
+
+If your target Linux distribution is already based on systemd ecosystem of version 236 and higher, then there is no additional effort, just make sure you have corresponding systemd header files available (provided by `libsystemd-dev` package on Debian/Ubuntu, for example), and you may go on building sdbus-c++ seamlessly.
+
+However, sdbus-c++ can perfectly be used in non-systemd environments as well. There are two ways to approach this:
+
+### Building and distributing libsystemd as a shared library yourself
+
+Fortunately, libsystemd is rather self-contained and can be built and used independently of the rest of systemd ecosystem. To build libsystemd shared library for sdbus-c++:
+
+```shell
+$ git clone https://github.com/systemd/systemd
+$ cd systemd
+$ git checkout v242  # or any other recent stable version
+$ mkdir build
+$ cd build
+$ meson --buildtype=release .. # solve systemd dependencies if any pop up, e.g. libmount-dev, libcap, librt...
+$ ninja version.h # building version.h target is only necessary in systemd version >= 241
+$ ninja libsystemd.so.0.26.0  # or another version number depending which systemd version you have
+# finally, manually install the library, header files and libsystemd.pc pkgconfig file
+```
+
+### Building and distributing libsystemd as part of sdbus-c++
+
+sdbus-c++ provides `BUILD_LIBSYSTEMD` configuration option. When turned on, sdbus-c++ will automatically download and build libsystemd as a static library and make it an opaque part of sdbus-c++ shared library for you. This is the most convenient and effective approach to build, distribute and use sdbus-c++ as a self-contained, systemd-independent library in non-systemd enviroments. Just make sure your build machine has all dependencies needed by libsystemd build process. That includes `meson`, `ninja`, `git` programs and mainly libraries and library headers for `libmount`, `libcap` and `librt` (part of glibc). Also when distributing, make sure these dependency libraries are installed on the production machine.
+
+You may additionally set the `LIBSYSTEMD_VERSION` configuration flag to fine-tune the version of systemd to be taken in. (The default value is 242).
+
+Distributing sdbus-c++
+----------------------
+
+sdbus-c++ recipes for Yocto are available. Contributors willing to help with bringing sdbus-c++ to popular package systems are welcome.
+
+### Yocto
+
+There are sdbus-c++ recipes for already released Yocto versions (for versions Sumo and newer) available in the meta-oe layer of meta-openembedded fork at Kistler-Group:
+
+  * [sdbus-c++ recipes for Yocto Sumo](https://github.com/Kistler-Group/meta-openembedded/tree/sumo-with-sdbus-c%2B%2B/meta-oe/recipes-core/sdbus-c%2B%2B)
+  * [sdbus-c++ recipes for Yocto Thud](https://github.com/Kistler-Group/meta-openembedded/tree/thud-with-sdbus-c%2B%2B/meta-oe/recipes-core/sdbus-c%2B%2B)
+  * [sdbus-c++ recipes for Yocto Warrior](https://github.com/Kistler-Group/meta-openembedded/tree/warrior-with-sdbus-c%2B%2B/meta-oe/recipes-core/sdbus-c%2B%2B)
+
+Also, there is currently a pull request pending that pushes there recipes upstream -- to the OpenEmbedded project, so they will be officially available for the upcoming Yocto release.
+
+There are two recipes:
+
+  * One for sdbus-c++ itself. It detects whether systemd feature is turned on in the poky linux configuration. If so, it simply depends on systemd and makes use of libsystemd shared library available in the target system. Otherwise it automatically downloads and builds libsystemd static library and makes it an opaque part of sdbus-c++ shared library. The recipe also supports ptest.
+  * One for sdbus-c++ native tools, namely sdbus-c++ code generator to generate C++ adaptor and proxy binding classes.
+
+Tip: If you get `ERROR: Program or command 'getent' not found or not executable` when building sdbus-c++ in Yocto, please make sure you've added `getent` to `HOSTTOOLS`. For example, you can add `HOSTTOOLS_NONFATAL += "getent"` into your local.conf file.
+
 Header files and namespaces
 ---------------------------

@@ -92,11 +155,15 @@ The following diagram illustrates the major entities in sdbus-c++.
  * invoking remote methods of the corresponding object, in both synchronous and asynchronous way,
  * registering handlers for signals,

-`Message` class represents a message, which is the fundamental DBus concept. There are three distinctive types of message that derive from the `Message` class:
+`Message` class represents a message, which is the fundamental DBus concept. There are three distinctive types of message that are derived from the `Message` class:

  * `MethodCall` (with serialized parameters),
+  * `AsyncMethodCall` (with serialized parameters),
  * `MethodReply` (with serialized return values),
-  * or a `Signal` (with serialized parameters).
+  * `Signal` (with serialized parameters),
+  * `PropertySetCall` (with serialized parameter value to be set)
+  * `PropertyGetReply` (where property value shall be stored)
+  * `PlainMessage` (for internal purposes).

 ### Thread safety in sdbus-c++

@@ -481,7 +548,7 @@ After running this through the stubs generator, we get the stub code that is des

 ### concatenator-server-glue.h

-For each interface in the XML IDL file the generator creates one class that represents it. The class is de facto an interface which shall be implemented by inheriting from it. The class' constructor takes care of registering all methods, signals and properties. For each D-Bus method there is a pure virtual member function. These pure virtual functions must be implemented in the child class. For each signal, there is a public function member that emits this signal.
+For each interface in the XML IDL file the generator creates one class that represents it. The class is de facto an interface which shall be implemented by the class inheriting it. The class' constructor takes care of registering all methods, signals and properties. For each D-Bus method there is a pure virtual member function. These pure virtual functions must be implemented in the child class. For each signal, there is a public function member that emits this signal.

 ```cpp
 /*
@@ -501,20 +568,22 @@ namespace sdbuscpp {
 class Concatenator_adaptor
 {
 public:
-    static constexpr const char* interfaceName = "org.sdbuscpp.Concatenator";
+    static constexpr const char* INTERFACE_NAME = "org.sdbuscpp.Concatenator";

 protected:
    Concatenator_adaptor(sdbus::IObject& object)
        : object_(object)
    {
-        object_.registerMethod("concatenate").onInterface(interfaceName).implementedAs([this](const std::vector<int32_t>& numbers, const std::string& separator){ return this->concatenate(numbers, separator); });
-        object_.registerSignal("concatenated").onInterface(interfaceName).withParameters<std::string>();
+        object_.registerMethod("concatenate").onInterface(INTERFACE_NAME).implementedAs([this](const std::vector<int32_t>& numbers, const std::string& separator){ return this->concatenate(numbers, separator); });
+        object_.registerSignal("concatenated").onInterface(INTERFACE_NAME).withParameters<std::string>();
    }

+    ~Concatenator_adaptor() = default;
+
 public:
-    void concatenated(const std::string& concatenatedString)
+    void emitConcatenated(const std::string& concatenatedString)
    {
-        object_.emitSignal("concatenated").onInterface(interfaceName).withArguments(concatenatedString);
+        object_.emitSignal("concatenated").onInterface(INTERFACE_NAME).withArguments(concatenatedString);
    }

 private:
@@ -551,22 +620,24 @@ namespace sdbuscpp {
 class Concatenator_proxy
 {
 public:
-    static constexpr const char* interfaceName = "org.sdbuscpp.Concatenator";
+    static constexpr const char* INTERFACE_NAME = "org.sdbuscpp.Concatenator";

 protected:
    Concatenator_proxy(sdbus::IProxy& proxy)
        : proxy_(proxy)
    {
-        proxy_.uponSignal("concatenated").onInterface(interfaceName).call([this](const std::string& concatenatedString){ this->onConcatenated(concatenatedString); });
+        proxy_.uponSignal("concatenated").onInterface(INTERFACE_NAME).call([this](const std::string& concatenatedString){ this->onConcatenated(concatenatedString); });
    }

+    ~Concatenator_proxy() = default;
+
    virtual void onConcatenated(const std::string& concatenatedString) = 0;

 public:
    std::string concatenate(const std::vector<int32_t>& numbers, const std::string& separator)
    {
        std::string result;
-        proxy_.callMethod("concatenate").onInterface(interfaceName).withArguments(numbers, separator).storeResultsTo(result);
+        proxy_.callMethod("concatenate").onInterface(INTERFACE_NAME).withArguments(numbers, separator).storeResultsTo(result);
        return result;
    }

@@ -626,7 +697,7 @@ protected:
        }
        
        // Emit the 'concatenated' signal with the resulting string
-        concatenated(result);
+        emitConcatenated(result);
        
        // Return the resulting string
        return result;
@@ -829,7 +900,7 @@ void concatenate(sdbus::Result<std::string>&& result, std::vector<int32_t> numbe
        methodResult.returnReply(result);
        
        // Emit the 'concatenated' signal with the resulting string
-        this->concatenated(result);
+        this->emitConcatenated(result);
    }).detach();
 }
 ```
@@ -860,7 +931,7 @@ sdbus-c++ stub generator can generate stub code for server-side async methods. W
 </node>
 ```

-For a real example of a server-side asynchronous D-Bus method, please look at sdbus-c++ [stress tests](/test/stresstests).
+For a real example of a server-side asynchronous D-Bus method, please look at sdbus-c++ [stress tests](/tests/stresstests).

 Asynchronous client-side methods
 --------------------------------
@@ -977,7 +1048,7 @@ For each client-side async method, a corresponding `on<MethodName>Reply` pure vi
    
 So in the specific example above, the stub generator will generate a `Concatenator_proxy` class similar to one shown in a [dedicated section above](#concatenator-client-glueh), with the difference that it will also generate an additional `virtual void onConcatenateReply(const sdbus::Error* error, const std::string& concatenatedString);` method, which we shall override in derived `ConcatenatorProxy`.

-For a real example of a client-side asynchronous D-Bus method, please look at sdbus-c++ [stress tests](/test/stresstests).
+For a real example of a client-side asynchronous D-Bus method, please look at sdbus-c++ [stress tests](/tests/stresstests).

 Using D-Bus properties
 ----------------------
@@ -1018,12 +1089,14 @@ public:
        object_.registerProperty("status").onInterface(INTERFACE_NAME).withGetter([this](){ return this->status(); }).withSetter([this](const uint32_t& value){ this->status(value); });
    }

+    ~PropertyProvider_adaptor() = default;
+
 private:
    // property getter
    virtual uint32_t status() = 0;
    // property setter
    virtual void status(const uint32_t& value) = 0;
-    
+
    /*...*/
 };
 #endif
@@ -1035,7 +1108,7 @@ The proxy:
 class PropertyProvider_proxy
 {
    /*...*/
-    
+
 public:
    // getting the property value
    uint32_t status()
@@ -1048,13 +1121,31 @@ public:
    {
        object_.setProperty("status").onInterface(INTERFACE_NAME).toValue(value);
    }
-    
+
    /*...*/
 };
 ```

 When implementing the adaptor, we simply need to provide the body for `status` getter and setter method by overriding them. Then in the proxy, we just call them.

+Standard D-Bus interfaces
+-------------------------
+
+sdbus-c++ provides support for standard D-Bus interfaces. These are:
+
+* `org.freedesktop.DBus.Peer`
+* `org.freedesktop.DBus.Introspectable`
+* `org.freedesktop.DBus.Properties`
+* `org.freedesktop.DBus.ObjectManager`
+
+The implementation of methods that these interfaces define is provided by the library. `Peer`, `Introspectable` and `Properties` are automatically part of interfaces of every D-Bus object. `ObjectManager` is not automatically present and has to be enabled by the client when using `IObject` API. When using generated `ObjectManager_adaptor`, `ObjectManager` is enabled automatically in its constructor.
+
+Pre-generated `*_proxy` and `*_adaptor` convenience classes for these standard interfaces are located in `sdbus-c++/StandardInterfaces.h`. We add them simply as additional parameters of `sdbus::ProxyInterfaces` or `sdbus::AdaptorInterfaces` class template, and our proxy or adaptor class inherits convenience functions from those interface classes.
+
+For example, to conveniently emit a `PropertyChanged` signal under `org.freedesktop.DBus.Properties` interface, we just issue `emitPropertiesChangedSignal` function of our adaptor object.
+
+Note that signals of afore-mentioned standard D-Bus interfaces are not emitted by the library automatically. It's clients who are supposed to emit them.
+
 Conclusion
 ----------

@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file AdaptorInterfaces.h
 *
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file ConvenienceApiClasses.h
 *
@@ -220,6 +221,7 @@ namespace sdbus {
        PropertySetter(IProxy& proxy, const std::string& propertyName);
        PropertySetter& onInterface(const std::string& interfaceName);
        template <typename _Value> void toValue(const _Value& value);
+        void toValue(const sdbus::Variant& value);

    private:
        IProxy& proxy_;
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file ConvenienceApiClasses.inl
 *
@@ -253,10 +254,10 @@ namespace sdbus {
        if (propertySignature_.empty())
            propertySignature_ = signature_of_function_output_arguments<_Function>::str();

-        getter_ = [callback = std::forward<_Function>(callback)](Message& msg)
+        getter_ = [callback = std::forward<_Function>(callback)](PropertyGetReply& reply)
        {
-            // Get the propety value and serialize it into the message
-            msg << callback();
+            // Get the propety value and serialize it into the pre-constructed reply message
+            reply << callback();
        };

        return *this;
@@ -271,14 +272,14 @@ namespace sdbus {
        if (propertySignature_.empty())
            propertySignature_ = signature_of_function_input_arguments<_Function>::str();

-        setter_ = [callback = std::forward<_Function>(callback)](Message& msg)
+        setter_ = [callback = std::forward<_Function>(callback)](PropertySetCall& call)
        {
            // Default-construct property value
            using property_type = function_argument_t<_Function, 0>;
            std::decay_t<property_type> property;

-            // Deserialize property value from the message
-            msg >> property;
+            // Deserialize property value from the incoming call message
+            call >> property;

            // Invoke setter with the value
            callback(property);
@@ -596,13 +597,18 @@ namespace sdbus {

    template <typename _Value>
    inline void PropertySetter::toValue(const _Value& value)
+    {
+        PropertySetter::toValue(sdbus::Variant{value});
+    }
+
+    inline void PropertySetter::toValue(const sdbus::Variant& value)
    {
        SDBUS_THROW_ERROR_IF(interfaceName_.empty(), "DBus interface not specified when setting a property", EINVAL);

        proxy_
            .callMethod("Set")
            .onInterface("org.freedesktop.DBus.Properties")
-            .withArguments(interfaceName_, propertyName_, sdbus::Variant{value});
+            .withArguments(interfaceName_, propertyName_, value);
    }

 }
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file Error.h
 *
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file Flags.h
 *
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file IConnection.h
 *
@@ -45,111 +46,162 @@ namespace sdbus {
    class IConnection
    {
    public:
+        struct PollData
+        {
+            int fd;
+            short int events;
+            uint64_t timeout_usec;
+        };
+
+        virtual ~IConnection() = default;
+
        /*!
-        * @brief Requests D-Bus name on the connection
-        *
-        * @param[in] name Name to request
-        *
-        * @throws sdbus::Error in case of failure
-        */
+         * @brief Requests D-Bus name on the connection
+         *
+         * @param[in] name Name to request
+         *
+         * @throws sdbus::Error in case of failure
+         */
        virtual void requestName(const std::string& name) = 0;

        /*!
-        * @brief Releases D-Bus name on the connection
-        *
-        * @param[in] name Name to release
-        *
-        * @throws sdbus::Error in case of failure
-        */
+         * @brief Releases D-Bus name on the connection
+         *
+         * @param[in] name Name to release
+         *
+         * @throws sdbus::Error in case of failure
+         */
        virtual void releaseName(const std::string& name) = 0;

        /*!
-        * @brief Enters the D-Bus processing loop
-        *
-        * The incoming D-Bus messages are processed in the loop. The method
-        * blocks indefinitely, until unblocked via leaveProcessingLoop.
-        *
-        * @throws sdbus::Error in case of failure
-        */
+         * @brief Enters the D-Bus processing loop
+         *
+         * The incoming D-Bus messages are processed in the loop. The method
+         * blocks indefinitely, until unblocked via leaveProcessingLoop.
+         *
+         * @throws sdbus::Error in case of failure
+         */
        virtual void enterProcessingLoop() = 0;

        /*!
-        * @brief Enters the D-Bus processing loop in a separate thread
-        *
-        * The same as enterProcessingLoop, except that it doesn't block
-        * because it runs the loop in a separate thread managed internally.
-        */
+         * @brief Enters the D-Bus processing loop in a separate thread
+         *
+         * The same as enterProcessingLoop, except that it doesn't block
+         * because it runs the loop in a separate thread managed internally.
+         */
        virtual void enterProcessingLoopAsync() = 0;

        /*!
-        * @brief Leaves the D-Bus processing loop
-        *
-        * Ends the previously started processing loop.
-        *
-        * @throws sdbus::Error in case of failure
-        */
+         * @brief Leaves the D-Bus processing loop
+         *
+         * Ends the previously started processing loop.
+         *
+         * @throws sdbus::Error in case of failure
+         */
        virtual void leaveProcessingLoop() = 0;

-        inline virtual ~IConnection() = 0;
+        /*!
+         * @brief Adds an ObjectManager at the specified D-Bus object path
+         *
+         * Creates an ObjectManager interface at the specified object path on
+         * the connection. This is a convenient way to interrogate a connection
+         * to see what objects it has.
+         *
+         * @throws sdbus::Error in case of failure
+         */
+        virtual void addObjectManager(const std::string& objectPath) = 0;
+
+        /*!
+         * @brief Returns parameters you can pass to poll
+         *
+         * To integrate sdbus with your app's own custom event handling system
+         * (without the requirement of an extra thread), you can use this
+         * method to query which file descriptors, poll events and timeouts you
+         * should add to your app's poll call in your main event loop. If these
+         * file descriptors signal, then you should call processPendingRequest
+         * to process the event. This means that all of sdbus's callbacks will
+         * arrive on your app's main event thread (opposed to on a thread created
+         * by sdbus-c++). If you are unsure what this all means then use
+         * enterProcessingLoop() or enterProcessingLoopAsync() instead.
+         *
+         * To integrate sdbus-c++ into a gtk app, pass the file descriptor returned
+         * by this method to g_main_context_add_poll.
+         *
+         * @throws sdbus::Error in case of failure
+         */
+        virtual PollData getProcessLoopPollData() = 0;
+
+        /*!
+         * @brief Process a pending request
+         *
+         * Processes a single dbus event. All of sdbus-c++'s callbacks will be called
+         * from within this method. This method should ONLY be used in conjuction
+         * with getProcessLoopPollData(). enterProcessingLoop() and
+         * enterProcessingLoopAsync() will call this method for you, so there is no
+         * need to call it when using these. If you are unsure what this all means then
+         * don't use this method.
+         *
+         * @returns true if an event was processed
+         * @throws sdbus::Error in case of failure
+         */
+        virtual bool processPendingRequest() = 0;
    };

-    IConnection::~IConnection() {}
-
    /*!
-    * @brief Creates/opens D-Bus system connection
-    *
-    * @return Connection instance
-    *
-    * @throws sdbus::Error in case of failure
-    */
+     * @brief Creates/opens D-Bus system connection
+     *
+     * @return Connection instance
+     *
+     * @throws sdbus::Error in case of failure
+     */
    std::unique_ptr<sdbus::IConnection> createConnection();

    /*!
-    * @brief Creates/opens D-Bus system connection with a name
-    *
-    * @param[in] name Name to request on the connection after its opening
-    * @return Connection instance
-    *
-    * @throws sdbus::Error in case of failure
-    */
+     * @brief Creates/opens D-Bus system connection with a name
+     *
+     * @param[in] name Name to request on the connection after its opening
+     * @return Connection instance
+     *
+     * @throws sdbus::Error in case of failure
+     */
    std::unique_ptr<sdbus::IConnection> createConnection(const std::string& name);

    /*!
-    * @brief Creates/opens D-Bus system connection
-    *
-    * @return Connection instance
-    *
-    * @throws sdbus::Error in case of failure
-    */
+     * @brief Creates/opens D-Bus system connection
+     *
+     * @return Connection instance
+     *
+     * @throws sdbus::Error in case of failure
+     */
    std::unique_ptr<sdbus::IConnection> createSystemBusConnection();

    /*!
-    * @brief Creates/opens D-Bus system connection with a name
-    *
-    * @param[in] name Name to request on the connection after its opening
-    * @return Connection instance
-    *
-    * @throws sdbus::Error in case of failure
-    */
+     * @brief Creates/opens D-Bus system connection with a name
+     *
+     * @param[in] name Name to request on the connection after its opening
+     * @return Connection instance
+     *
+     * @throws sdbus::Error in case of failure
+     */
    std::unique_ptr<sdbus::IConnection> createSystemBusConnection(const std::string& name);

    /*!
-    * @brief Creates/opens D-Bus session connection
-    *
-    * @return Connection instance
-    *
-    * @throws sdbus::Error in case of failure
-    */
+     * @brief Creates/opens D-Bus session connection
+     *
+     * @return Connection instance
+     *
+     * @throws sdbus::Error in case of failure
+     */
    std::unique_ptr<sdbus::IConnection> createSessionBusConnection();

    /*!
-    * @brief Creates/opens D-Bus session connection with a name
-    *
-    * @param[in] name Name to request on the connection after its opening
-    * @return Connection instance
-    *
-    * @throws sdbus::Error in case of failure
-    */
+     * @brief Creates/opens D-Bus session connection with a name
+     *
+     * @param[in] name Name to request on the connection after its opening
+     * @return Connection instance
+     *
+     * @throws sdbus::Error in case of failure
+     */
    std::unique_ptr<sdbus::IConnection> createSessionBusConnection(const std::string& name);

 }
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file IObject.h
 *
@@ -32,6 +33,7 @@
 #include <functional>
 #include <string>
 #include <memory>
+#include <vector>

 // Forward declarations
 namespace sdbus {
@@ -57,18 +59,20 @@ namespace sdbus {
    class IObject
    {
    public:
+        virtual ~IObject() = default;
+
        /*!
-        * @brief Registers method that the object will provide on D-Bus
-        *
-        * @param[in] interfaceName Name of an interface that the method will belong to
-        * @param[in] methodName Name of the method
-        * @param[in] inputSignature D-Bus signature of method input parameters
-        * @param[in] outputSignature D-Bus signature of method output parameters
-        * @param[in] methodCallback Callback that implements the body of the method
-        * @param[in] flags D-Bus method flags (privileged, deprecated, or no reply)
-        *
-        * @throws sdbus::Error in case of failure
-        */
+         * @brief Registers method that the object will provide on D-Bus
+         *
+         * @param[in] interfaceName Name of an interface that the method will belong to
+         * @param[in] methodName Name of the method
+         * @param[in] inputSignature D-Bus signature of method input parameters
+         * @param[in] outputSignature D-Bus signature of method output parameters
+         * @param[in] methodCallback Callback that implements the body of the method
+         * @param[in] flags D-Bus method flags (privileged, deprecated, or no reply)
+         *
+         * @throws sdbus::Error in case of failure
+         */
        virtual void registerMethod( const std::string& interfaceName
                                   , const std::string& methodName
                                   , const std::string& inputSignature
@@ -77,31 +81,31 @@ namespace sdbus {
                                   , Flags flags = {} ) = 0;

        /*!
-        * @brief Registers signal that the object will emit on D-Bus
-        *
-        * @param[in] interfaceName Name of an interface that the signal will fall under
-        * @param[in] signalName Name of the signal
-        * @param[in] signature D-Bus signature of signal parameters
-        * @param[in] flags D-Bus signal flags (deprecated)
-        *
-        * @throws sdbus::Error in case of failure
-        */
+         * @brief Registers signal that the object will emit on D-Bus
+         *
+         * @param[in] interfaceName Name of an interface that the signal will fall under
+         * @param[in] signalName Name of the signal
+         * @param[in] signature D-Bus signature of signal parameters
+         * @param[in] flags D-Bus signal flags (deprecated)
+         *
+         * @throws sdbus::Error in case of failure
+         */
        virtual void registerSignal( const std::string& interfaceName
                                   , const std::string& signalName
                                   , const std::string& signature
                                   , Flags flags = {} ) = 0;

        /*!
-        * @brief Registers read-only property that the object will provide on D-Bus
-        *
-        * @param[in] interfaceName Name of an interface that the property will fall under
-        * @param[in] propertyName Name of the property
-        * @param[in] signature D-Bus signature of property parameters
-        * @param[in] getCallback Callback that implements the body of the property getter
-        * @param[in] flags D-Bus property flags (deprecated, property update behavior)
-        *
-        * @throws sdbus::Error in case of failure
-        */
+         * @brief Registers read-only property that the object will provide on D-Bus
+         *
+         * @param[in] interfaceName Name of an interface that the property will fall under
+         * @param[in] propertyName Name of the property
+         * @param[in] signature D-Bus signature of property parameters
+         * @param[in] getCallback Callback that implements the body of the property getter
+         * @param[in] flags D-Bus property flags (deprecated, property update behavior)
+         *
+         * @throws sdbus::Error in case of failure
+         */
        virtual void registerProperty( const std::string& interfaceName
                                     , const std::string& propertyName
                                     , const std::string& signature
@@ -109,17 +113,17 @@ namespace sdbus {
                                     , Flags flags = {} ) = 0;

        /*!
-        * @brief Registers read/write property that the object will provide on D-Bus
-        *
-        * @param[in] interfaceName Name of an interface that the property will fall under
-        * @param[in] propertyName Name of the property
-        * @param[in] signature D-Bus signature of property parameters
-        * @param[in] getCallback Callback that implements the body of the property getter
-        * @param[in] setCallback Callback that implements the body of the property setter
-        * @param[in] flags D-Bus property flags (deprecated, property update behavior)
-        *
-        * @throws sdbus::Error in case of failure
-        */
+         * @brief Registers read/write property that the object will provide on D-Bus
+         *
+         * @param[in] interfaceName Name of an interface that the property will fall under
+         * @param[in] propertyName Name of the property
+         * @param[in] signature D-Bus signature of property parameters
+         * @param[in] getCallback Callback that implements the body of the property getter
+         * @param[in] setCallback Callback that implements the body of the property setter
+         * @param[in] flags D-Bus property flags (deprecated, property update behavior)
+         *
+         * @throws sdbus::Error in case of failure
+         */
        virtual void registerProperty( const std::string& interfaceName
                                     , const std::string& propertyName
                                     , const std::string& signature
@@ -128,167 +132,259 @@ namespace sdbus {
                                     , Flags flags = {} ) = 0;

        /*!
-        * @brief Sets flags for a given interface
-        *
-        * @param[in] interfaceName Name of an interface whose flags will be set
-        * @param[in] flags Flags to be set
-        *
-        * @throws sdbus::Error in case of failure
-        */
+         * @brief Sets flags for a given interface
+         *
+         * @param[in] interfaceName Name of an interface whose flags will be set
+         * @param[in] flags Flags to be set
+         *
+         * @throws sdbus::Error in case of failure
+         */
        virtual void setInterfaceFlags(const std::string& interfaceName, Flags flags) = 0;

        /*!
-        * @brief Finishes object API registration and publishes the object on the bus
-        *
-        * The method exports all up to now registered methods, signals and properties on D-Bus.
-        * Must be called after all methods, signals and properties have been registered.
-        *
-        * @throws sdbus::Error in case of failure
-        */
+         * @brief Finishes object API registration and publishes the object on the bus
+         *
+         * The method exports all up to now registered methods, signals and properties on D-Bus.
+         * Must be called after all methods, signals and properties have been registered.
+         *
+         * @throws sdbus::Error in case of failure
+         */
        virtual void finishRegistration() = 0;

        /*!
-        * @brief Unregisters object's API and removes object from the bus
-        *
-        * This method unregisters the object, its interfaces, methods, signals and properties
-        * from the bus. Unregistration is done automatically also in object's destructor. This
-        * method makes sense if, in the process of object removal, we need to make sure that
-        * callbacks are unregistered explicitly before the final destruction of the object instance.
-        *
-        * @throws sdbus::Error in case of failure
-        */
+         * @brief Unregisters object's API and removes object from the bus
+         *
+         * This method unregisters the object, its interfaces, methods, signals and properties
+         * from the bus. Unregistration is done automatically also in object's destructor. This
+         * method makes sense if, in the process of object removal, we need to make sure that
+         * callbacks are unregistered explicitly before the final destruction of the object instance.
+         *
+         * @throws sdbus::Error in case of failure
+         */
        virtual void unregister() = 0;

        /*!
-        * @brief Creates a signal message
-        *
-        * @param[in] interfaceName Name of an interface that the signal belongs under
-        * @param[in] signalName Name of the signal
-        * @return A signal message
-        *
-        * Serialize signal arguments into the returned message and emit the signal by passing
-        * the message with serialized arguments to the @c emitSignal function.
-        * Alternatively, use higher-level API @c emitSignal(const std::string& signalName) defined below.
-        *
-        * @throws sdbus::Error in case of failure
-        */
+         * @brief Creates a signal message
+         *
+         * @param[in] interfaceName Name of an interface that the signal belongs under
+         * @param[in] signalName Name of the signal
+         * @return A signal message
+         *
+         * Serialize signal arguments into the returned message and emit the signal by passing
+         * the message with serialized arguments to the @c emitSignal function.
+         * Alternatively, use higher-level API @c emitSignal(const std::string& signalName) defined below.
+         *
+         * @throws sdbus::Error in case of failure
+         */
        virtual Signal createSignal(const std::string& interfaceName, const std::string& signalName) = 0;

        /*!
-        * @brief Emits signal on D-Bus
-        *
-        * @param[in] message Signal message to be sent out
-        *
-        * Note: To avoid messing with messages, use higher-level API defined below.
-        *
-        * @throws sdbus::Error in case of failure
-        */
+         * @brief Emits signal for this object path
+         *
+         * @param[in] message Signal message to be sent out
+         *
+         * Note: To avoid messing with messages, use higher-level API defined below.
+         *
+         * @throws sdbus::Error in case of failure
+         */
        virtual void emitSignal(const sdbus::Signal& message) = 0;

        /*!
-        * @brief Provides D-Bus connection used by the object
-        *
-        * @return Reference to the D-Bus connection
-        */
+         * @brief Emits PropertyChanged signal for specified properties under a given interface of this object path
+         *
+         * @param[in] interfaceName Name of an interface that properties belong to
+         * @param[in] propNames Names of properties that will be included in the PropertiesChanged signal
+         *
+         * @throws sdbus::Error in case of failure
+         */
+        virtual void emitPropertiesChangedSignal(const std::string& interfaceName, const std::vector<std::string>& propNames) = 0;
+
+        /*!
+         * @brief Emits PropertyChanged signal for all properties on a given interface of this object path
+         *
+         * @param[in] interfaceName Name of an interface
+         *
+         * @throws sdbus::Error in case of failure
+         */
+        virtual void emitPropertiesChangedSignal(const std::string& interfaceName) = 0;
+
+        /*!
+         * @brief Emits InterfacesAdded signal on this object path
+         *
+         * This emits an InterfacesAdded signal on this object path, by iterating all registered
+         * interfaces on the path. All properties are queried and included in the signal.
+         * This call is equivalent to emitInterfacesAddedSignal() with an explicit list of
+         * registered interfaces. However, unlike emitInterfacesAddedSignal(interfaces), this
+         * call can figure out the list of supported interfaces itself. Furthermore, it properly
+         * adds the builtin org.freedesktop.DBus.* interfaces.
+         *
+         * @throws sdbus::Error in case of failure
+         */
+        virtual void emitInterfacesAddedSignal() = 0;
+
+        /*!
+         * @brief Emits InterfacesAdded signal on this object path
+         *
+         * This emits an InterfacesAdded signal on this object path with explicitly provided list
+         * of registered interfaces. As sdbus-c++ does currently not supported adding/removing
+         * interfaces of an existing object at run time (an object has a fixed set of interfaces
+         * registered by the time of invoking finishRegistration()), emitInterfacesAddedSignal(void)
+         * is probably what you are looking for.
+         *
+         * @throws sdbus::Error in case of failure
+         */
+        virtual void emitInterfacesAddedSignal(const std::vector<std::string>& interfaces) = 0;
+
+        /*!
+         * @brief Emits InterfacesRemoved signal on this object path
+         *
+         * This is like sd_bus_emit_object_added(), but emits an InterfacesRemoved signal on this
+         * object path. This only includes any registered interfaces but skips the properties.
+         * This function shall be called (just) before destroying the object.
+         *
+         * @throws sdbus::Error in case of failure
+         */
+        virtual void emitInterfacesRemovedSignal() = 0;
+
+        /*!
+         * @brief Emits InterfacesRemoved signal on this object path
+         *
+         * This emits an InterfacesRemoved signal on the given path with explicitly provided list
+         * of registered interfaces. As sdbus-c++ does currently not supported adding/removing
+         * interfaces of an existing object at run time (an object has a fixed set of interfaces
+         * registered by the time of invoking finishRegistration()), emitInterfacesRemovedSignal(void)
+         * is probably what you are looking for.
+         *
+         * @throws sdbus::Error in case of failure
+         */
+        virtual void emitInterfacesRemovedSignal(const std::vector<std::string>& interfaces) = 0;
+
+        /*!
+         * @brief Adds an ObjectManager interface at the path of this D-Bus object
+         *
+         * Creates an ObjectManager interface at the specified object path on
+         * the connection. This is a convenient way to interrogate a connection
+         * to see what objects it has.
+         *
+         * @throws sdbus::Error in case of failure
+         */
+        virtual void addObjectManager() = 0;
+
+        /*!
+         * @brief Removes an ObjectManager interface from the path of this D-Bus object
+         *
+         * @throws sdbus::Error in case of failure
+         */
+        virtual void removeObjectManager() = 0;
+
+        /*!
+         * @brief Tests whether ObjectManager interface is added at the path of this D-Bus object
+         * @return True if ObjectManager interface is there, false otherwise
+         */
+        virtual bool hasObjectManager() const = 0;
+
+        /*!
+         * @brief Provides D-Bus connection used by the object
+         *
+         * @return Reference to the D-Bus connection
+         */
        virtual sdbus::IConnection& getConnection() const = 0;

        /*!
-        * @brief Registers method that the object will provide on D-Bus
-        *
-        * @param[in] methodName Name of the method
-        * @return A helper object for convenient registration of the method
-        *
-        * This is a high-level, convenience way of registering D-Bus methods that abstracts
-        * from the D-Bus message concept. Method arguments/return value are automatically (de)serialized
-        * in a message and D-Bus signatures automatically deduced from the parameters and return type
-        * of the provided native method implementation callback.
-        *
-        * Example of use:
-        * @code
-        * object.registerMethod("doFoo").onInterface("com.kistler.foo").implementedAs([this](int value){ return this->doFoo(value); });
-        * @endcode
-        *
-        * @throws sdbus::Error in case of failure
-        */
+         * @brief Registers method that the object will provide on D-Bus
+         *
+         * @param[in] methodName Name of the method
+         * @return A helper object for convenient registration of the method
+         *
+         * This is a high-level, convenience way of registering D-Bus methods that abstracts
+         * from the D-Bus message concept. Method arguments/return value are automatically (de)serialized
+         * in a message and D-Bus signatures automatically deduced from the parameters and return type
+         * of the provided native method implementation callback.
+         *
+         * Example of use:
+         * @code
+         * object.registerMethod("doFoo").onInterface("com.kistler.foo").implementedAs([this](int value){ return this->doFoo(value); });
+         * @endcode
+         *
+         * @throws sdbus::Error in case of failure
+         */
        MethodRegistrator registerMethod(const std::string& methodName);

        /*!
-        * @brief Registers signal that the object will provide on D-Bus
-        *
-        * @param[in] signalName Name of the signal
-        * @return A helper object for convenient registration of the signal
-        *
-        * This is a high-level, convenience way of registering D-Bus signals that abstracts
-        * from the D-Bus message concept. Signal arguments are automatically (de)serialized
-        * in a message and D-Bus signatures automatically deduced from the provided native parameters.
-        *
-        * Example of use:
-        * @code
-        * object.registerSignal("paramChange").onInterface("com.kistler.foo").withParameters<std::map<int32_t, std::string>>();
-        * @endcode
-        *
-        * @throws sdbus::Error in case of failure
-        */
+         * @brief Registers signal that the object will provide on D-Bus
+         *
+         * @param[in] signalName Name of the signal
+         * @return A helper object for convenient registration of the signal
+         *
+         * This is a high-level, convenience way of registering D-Bus signals that abstracts
+         * from the D-Bus message concept. Signal arguments are automatically (de)serialized
+         * in a message and D-Bus signatures automatically deduced from the provided native parameters.
+         *
+         * Example of use:
+         * @code
+         * object.registerSignal("paramChange").onInterface("com.kistler.foo").withParameters<std::map<int32_t, std::string>>();
+         * @endcode
+         *
+         * @throws sdbus::Error in case of failure
+         */
        SignalRegistrator registerSignal(const std::string& signalName);

        /*!
-        * @brief Registers property that the object will provide on D-Bus
-        *
-        * @param[in] propertyName Name of the property
-        * @return A helper object for convenient registration of the property
-        *
-        * This is a high-level, convenience way of registering D-Bus properties that abstracts
-        * from the D-Bus message concept. Property arguments are automatically (de)serialized
-        * in a message and D-Bus signatures automatically deduced from the provided native callbacks.
-        *
-        * Example of use:
-        * @code
-        * object_.registerProperty("state").onInterface("com.kistler.foo").withGetter([this](){ return this->state(); });
-        * @endcode
-        *
-        * @throws sdbus::Error in case of failure
-        */
+         * @brief Registers property that the object will provide on D-Bus
+         *
+         * @param[in] propertyName Name of the property
+         * @return A helper object for convenient registration of the property
+         *
+         * This is a high-level, convenience way of registering D-Bus properties that abstracts
+         * from the D-Bus message concept. Property arguments are automatically (de)serialized
+         * in a message and D-Bus signatures automatically deduced from the provided native callbacks.
+         *
+         * Example of use:
+         * @code
+         * object_.registerProperty("state").onInterface("com.kistler.foo").withGetter([this](){ return this->state(); });
+         * @endcode
+         *
+         * @throws sdbus::Error in case of failure
+         */
        PropertyRegistrator registerProperty(const std::string& propertyName);

        /*!
-        * @brief Sets flags (annotations) for a given interface
-        *
-        * @param[in] interfaceName Name of an interface whose flags will be set
-        * @return A helper object for convenient setting of Interface flags
-        *
-        * This is a high-level, convenience alternative to the other setInterfaceFlags overload.
-        *
-        * Example of use:
-        * @code
-        * object_.setInterfaceFlags("com.kistler.foo").markAsDeprecated().withPropertyUpdateBehavior(sdbus::Flags::EMITS_NO_SIGNAL);
-        * @endcode
-        *
-        * @throws sdbus::Error in case of failure
-        */
+         * @brief Sets flags (annotations) for a given interface
+         *
+         * @param[in] interfaceName Name of an interface whose flags will be set
+         * @return A helper object for convenient setting of Interface flags
+         *
+         * This is a high-level, convenience alternative to the other setInterfaceFlags overload.
+         *
+         * Example of use:
+         * @code
+         * object_.setInterfaceFlags("com.kistler.foo").markAsDeprecated().withPropertyUpdateBehavior(sdbus::Flags::EMITS_NO_SIGNAL);
+         * @endcode
+         *
+         * @throws sdbus::Error in case of failure
+         */
        InterfaceFlagsSetter setInterfaceFlags(const std::string& interfaceName);

        /*!
-        * @brief Emits signal on D-Bus
-        *
-        * @param[in] signalName Name of the signal
-        * @return A helper object for convenient emission of signals
-        *
-        * This is a high-level, convenience way of emitting D-Bus signals that abstracts
-        * from the D-Bus message concept. Signal arguments are automatically serialized
-        * in a message and D-Bus signatures automatically deduced from the provided native arguments.
-        *
-        * Example of use:
-        * @code
-        * int arg1 = ...;
-        * double arg2 = ...;
-        * object_.emitSignal("fooSignal").onInterface("com.kistler.foo").withArguments(arg1, arg2);
-        * @endcode
-        *
-        * @throws sdbus::Error in case of failure
-        */
+         * @brief Emits signal on D-Bus
+         *
+         * @param[in] signalName Name of the signal
+         * @return A helper object for convenient emission of signals
+         *
+         * This is a high-level, convenience way of emitting D-Bus signals that abstracts
+         * from the D-Bus message concept. Signal arguments are automatically serialized
+         * in a message and D-Bus signatures automatically deduced from the provided native arguments.
+         *
+         * Example of use:
+         * @code
+         * int arg1 = ...;
+         * double arg2 = ...;
+         * object_.emitSignal("fooSignal").onInterface("com.kistler.foo").withArguments(arg1, arg2);
+         * @endcode
+         *
+         * @throws sdbus::Error in case of failure
+         */
        SignalEmitter emitSignal(const std::string& signalName);
-
-        virtual ~IObject() = 0;
    };

    inline MethodRegistrator IObject::registerMethod(const std::string& methodName)
@@ -298,17 +394,17 @@ namespace sdbus {

    inline SignalRegistrator IObject::registerSignal(const std::string& signalName)
    {
-        return SignalRegistrator(*this, std::move(signalName));
+        return SignalRegistrator(*this, signalName);
    }

    inline PropertyRegistrator IObject::registerProperty(const std::string& propertyName)
    {
-        return PropertyRegistrator(*this, std::move(propertyName));
+        return PropertyRegistrator(*this, propertyName);
    }

    inline InterfaceFlagsSetter IObject::setInterfaceFlags(const std::string& interfaceName)
    {
-        return InterfaceFlagsSetter(*this, std::move(interfaceName));
+        return InterfaceFlagsSetter(*this, interfaceName);
    }

    inline SignalEmitter IObject::emitSignal(const std::string& signalName)
@@ -316,26 +412,24 @@ namespace sdbus {
        return SignalEmitter(*this, signalName);
    }

-    inline IObject::~IObject() {}
-
    /*!
-    * @brief Creates instance representing a D-Bus object
-    *
-    * @param[in] connection D-Bus connection to be used by the object
-    * @param[in] objectPath Path of the D-Bus object
-    * @return Pointer to the object representation instance
-    *
-    * The provided connection will be used by the object to export methods,
-    * issue signals and provide properties.
-    *
-    * Creating a D-Bus object instance is (thread-)safe even upon the connection
-    * which is already running its processing loop.
-    *
-    * Code example:
-    * @code
-    * auto proxy = sdbus::createObject(connection, "/com/kistler/foo");
-    * @endcode
-    */
+     * @brief Creates instance representing a D-Bus object
+     *
+     * @param[in] connection D-Bus connection to be used by the object
+     * @param[in] objectPath Path of the D-Bus object
+     * @return Pointer to the object representation instance
+     *
+     * The provided connection will be used by the object to export methods,
+     * issue signals and provide properties.
+     *
+     * Creating a D-Bus object instance is (thread-)safe even upon the connection
+     * which is already running its processing loop.
+     *
+     * Code example:
+     * @code
+     * auto proxy = sdbus::createObject(connection, "/com/kistler/foo");
+     * @endcode
+     */
    std::unique_ptr<sdbus::IObject> createObject(sdbus::IConnection& connection, std::string objectPath);

 }
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file IProxy.h
 *
@@ -58,209 +59,209 @@ namespace sdbus {
    class IProxy
    {
    public:
+        virtual ~IProxy() = default;
+
        /*!
-        * @brief Creates a method call message
-        *
-        * @param[in] interfaceName Name of an interface that provides a given method
-        * @param[in] methodName Name of the method
-        * @return A method call message
-        *
-        * Serialize method arguments into the returned message and invoke the method by passing
-        * the message with serialized arguments to the @c callMethod function.
-        * Alternatively, use higher-level API @c callMethod(const std::string& methodName) defined below.
-        *
-        * @throws sdbus::Error in case of failure
-        */
+         * @brief Creates a method call message
+         *
+         * @param[in] interfaceName Name of an interface that provides a given method
+         * @param[in] methodName Name of the method
+         * @return A method call message
+         *
+         * Serialize method arguments into the returned message and invoke the method by passing
+         * the message with serialized arguments to the @c callMethod function.
+         * Alternatively, use higher-level API @c callMethod(const std::string& methodName) defined below.
+         *
+         * @throws sdbus::Error in case of failure
+         */
        virtual MethodCall createMethodCall(const std::string& interfaceName, const std::string& methodName) = 0;

        /*!
-        * @brief Creates an asynchronous method call message
-        *
-        * @param[in] interfaceName Name of an interface that provides a given method
-        * @param[in] methodName Name of the method
-        * @return A method call message
-        *
-        * Serialize method arguments into the returned message and invoke the method by passing
-        * the message with serialized arguments to the @c callMethod function.
-        * Alternatively, use higher-level API @c callMethodAsync(const std::string& methodName) defined below.
-        *
-        * @throws sdbus::Error in case of failure
-        */
+         * @brief Creates an asynchronous method call message
+         *
+         * @param[in] interfaceName Name of an interface that provides a given method
+         * @param[in] methodName Name of the method
+         * @return A method call message
+         *
+         * Serialize method arguments into the returned message and invoke the method by passing
+         * the message with serialized arguments to the @c callMethod function.
+         * Alternatively, use higher-level API @c callMethodAsync(const std::string& methodName) defined below.
+         *
+         * @throws sdbus::Error in case of failure
+         */
        virtual AsyncMethodCall createAsyncMethodCall(const std::string& interfaceName, const std::string& methodName) = 0;

        /*!
-        * @brief Calls method on the proxied D-Bus object
-        *
-        * @param[in] message Message representing a method call
-        * @return A method reply message
-        *
-        * Normally, the call is blocking, i.e. it waits for the remote method to finish with either
-        * a return value or an error.
-        *
-        * If the method call argument is set to not expect reply, the call will not wait for the remote
-        * method to finish, i.e. the call will be non-blocking, and the function will return an empty,
-        * invalid MethodReply object (representing void).
-        *
-        * Note: To avoid messing with messages, use higher-level API defined below.
-        *
-        * @throws sdbus::Error in case of failure
-        */
+         * @brief Calls method on the proxied D-Bus object
+         *
+         * @param[in] message Message representing a method call
+         * @return A method reply message
+         *
+         * Normally, the call is blocking, i.e. it waits for the remote method to finish with either
+         * a return value or an error.
+         *
+         * If the method call argument is set to not expect reply, the call will not wait for the remote
+         * method to finish, i.e. the call will be non-blocking, and the function will return an empty,
+         * invalid MethodReply object (representing void).
+         *
+         * Note: To avoid messing with messages, use higher-level API defined below.
+         *
+         * @throws sdbus::Error in case of failure
+         */
        virtual MethodReply callMethod(const MethodCall& message) = 0;

        /*!
-        * @brief Calls method on the proxied D-Bus object asynchronously
-        *
-        * @param[in] message Message representing an async method call
-        * @param[in] asyncReplyCallback Handler for the async reply
-        *
-        * The call is non-blocking. It doesn't wait for the reply. Once the reply arrives,
-        * the provided async reply handler will get invoked from the context of the connection
-        * event loop processing thread.
-        *
-        * Note: To avoid messing with messages, use higher-level API defined below.
-        *
-        * @throws sdbus::Error in case of failure
-        */
+         * @brief Calls method on the proxied D-Bus object asynchronously
+         *
+         * @param[in] message Message representing an async method call
+         * @param[in] asyncReplyCallback Handler for the async reply
+         *
+         * The call is non-blocking. It doesn't wait for the reply. Once the reply arrives,
+         * the provided async reply handler will get invoked from the context of the connection
+         * event loop processing thread.
+         *
+         * Note: To avoid messing with messages, use higher-level API defined below.
+         *
+         * @throws sdbus::Error in case of failure
+         */
        virtual void callMethod(const AsyncMethodCall& message, async_reply_handler asyncReplyCallback) = 0;

        /*!
-        * @brief Registers a handler for the desired signal emitted by the proxied D-Bus object
-        *
-        * @param[in] interfaceName Name of an interface that the signal belongs to
-        * @param[in] signalName Name of the signal
-        * @param[in] signalHandler Callback that implements the body of the signal handler
-        *
-        * @throws sdbus::Error in case of failure
-        */
+         * @brief Registers a handler for the desired signal emitted by the proxied D-Bus object
+         *
+         * @param[in] interfaceName Name of an interface that the signal belongs to
+         * @param[in] signalName Name of the signal
+         * @param[in] signalHandler Callback that implements the body of the signal handler
+         *
+         * @throws sdbus::Error in case of failure
+         */
        virtual void registerSignalHandler( const std::string& interfaceName
                                          , const std::string& signalName
                                          , signal_handler signalHandler ) = 0;

        /*!
-        * @brief Finishes the registration of signal handlers
-        *
-        * The method physically subscribes to the desired signals.
-        * Must be called only once, after all signals have been registered already.
-        *
-        * @throws sdbus::Error in case of failure
-        */
+         * @brief Finishes the registration of signal handlers
+         *
+         * The method physically subscribes to the desired signals.
+         * Must be called only once, after all signals have been registered already.
+         *
+         * @throws sdbus::Error in case of failure
+         */
        virtual void finishRegistration() = 0;

        /*!
-        * @brief Unregisters proxy's signal handlers and stops receving replies to pending async calls
-        *
-        * Unregistration is done automatically also in proxy's destructor. This method makes
-        * sense if, in the process of proxy removal, we need to make sure that callbacks
-        * are unregistered explicitly before the final destruction of the proxy instance.
-        *
-        * @throws sdbus::Error in case of failure
-        */
+         * @brief Unregisters proxy's signal handlers and stops receving replies to pending async calls
+         *
+         * Unregistration is done automatically also in proxy's destructor. This method makes
+         * sense if, in the process of proxy removal, we need to make sure that callbacks
+         * are unregistered explicitly before the final destruction of the proxy instance.
+         *
+         * @throws sdbus::Error in case of failure
+         */
        virtual void unregister() = 0;

        /*!
-        * @brief Calls method on the proxied D-Bus object
-        *
-        * @param[in] methodName Name of the method
-        * @return A helper object for convenient invocation of the method
-        *
-        * This is a high-level, convenience way of calling D-Bus methods that abstracts
-        * from the D-Bus message concept. Method arguments/return value are automatically (de)serialized
-        * in a message and D-Bus signatures automatically deduced from the provided native arguments
-        * and return values.
-        *
-        * Example of use:
-        * @code
-        * int result, a = ..., b = ...;
-        * object_.callMethod("multiply").onInterface(INTERFACE_NAME).withArguments(a, b).storeResultsTo(result);
-        * @endcode
-        *
-        * @throws sdbus::Error in case of failure
-        */
+         * @brief Calls method on the proxied D-Bus object
+         *
+         * @param[in] methodName Name of the method
+         * @return A helper object for convenient invocation of the method
+         *
+         * This is a high-level, convenience way of calling D-Bus methods that abstracts
+         * from the D-Bus message concept. Method arguments/return value are automatically (de)serialized
+         * in a message and D-Bus signatures automatically deduced from the provided native arguments
+         * and return values.
+         *
+         * Example of use:
+         * @code
+         * int result, a = ..., b = ...;
+         * object_.callMethod("multiply").onInterface(INTERFACE_NAME).withArguments(a, b).storeResultsTo(result);
+         * @endcode
+         *
+         * @throws sdbus::Error in case of failure
+         */
        MethodInvoker callMethod(const std::string& methodName);

        /*!
-        * @brief Calls method on the proxied D-Bus object asynchronously
-        *
-        * @param[in] methodName Name of the method
-        * @return A helper object for convenient asynchronous invocation of the method
-        *
-        * This is a high-level, convenience way of calling D-Bus methods that abstracts
-        * from the D-Bus message concept. Method arguments/return value are automatically (de)serialized
-        * in a message and D-Bus signatures automatically deduced from the provided native arguments
-        * and return values.
-        *
-        * Example of use:
-        * @code
-        * int a = ..., b = ...;
-        * object_.callMethodAsync("multiply").onInterface(INTERFACE_NAME).withArguments(a, b).uponReplyInvoke([](int result)
-        * {
-        *     std::cout << "Got result of multiplying " << a << " and " << b << ": " << result << std::endl;
-        * });
-        * @endcode
-        *
-        * @throws sdbus::Error in case of failure
-        */
+         * @brief Calls method on the proxied D-Bus object asynchronously
+         *
+         * @param[in] methodName Name of the method
+         * @return A helper object for convenient asynchronous invocation of the method
+         *
+         * This is a high-level, convenience way of calling D-Bus methods that abstracts
+         * from the D-Bus message concept. Method arguments/return value are automatically (de)serialized
+         * in a message and D-Bus signatures automatically deduced from the provided native arguments
+         * and return values.
+         *
+         * Example of use:
+         * @code
+         * int a = ..., b = ...;
+         * object_.callMethodAsync("multiply").onInterface(INTERFACE_NAME).withArguments(a, b).uponReplyInvoke([](int result)
+         * {
+         *     std::cout << "Got result of multiplying " << a << " and " << b << ": " << result << std::endl;
+         * });
+         * @endcode
+         *
+         * @throws sdbus::Error in case of failure
+         */
        AsyncMethodInvoker callMethodAsync(const std::string& methodName);

        /*!
-        * @brief Registers signal handler for a given signal of the proxied D-Bus object
-        *
-        * @param[in] signalName Name of the signal
-        * @return A helper object for convenient registration of the signal handler
-        *
-        * This is a high-level, convenience way of registering to D-Bus signals that abstracts
-        * from the D-Bus message concept. Signal arguments are automatically serialized
-        * in a message and D-Bus signatures automatically deduced from the parameters
-        * of the provided native signal callback.
-        *
-        * Example of use:
-        * @code
-        * object_.uponSignal("fooSignal").onInterface("com.kistler.foo").call([this](int arg1, double arg2){ this->onFooSignal(arg1, arg2); });
-        * @endcode
-        *
-        * @throws sdbus::Error in case of failure
-        */
+         * @brief Registers signal handler for a given signal of the proxied D-Bus object
+         *
+         * @param[in] signalName Name of the signal
+         * @return A helper object for convenient registration of the signal handler
+         *
+         * This is a high-level, convenience way of registering to D-Bus signals that abstracts
+         * from the D-Bus message concept. Signal arguments are automatically serialized
+         * in a message and D-Bus signatures automatically deduced from the parameters
+         * of the provided native signal callback.
+         *
+         * Example of use:
+         * @code
+         * object_.uponSignal("fooSignal").onInterface("com.kistler.foo").call([this](int arg1, double arg2){ this->onFooSignal(arg1, arg2); });
+         * @endcode
+         *
+         * @throws sdbus::Error in case of failure
+         */
        SignalSubscriber uponSignal(const std::string& signalName);

        /*!
-        * @brief Gets value of a property of the proxied D-Bus object
-        *
-        * @param[in] propertyName Name of the property
-        * @return A helper object for convenient getting of property value
-        *
-        * This is a high-level, convenience way of reading D-Bus property values that abstracts
-        * from the D-Bus message concept. sdbus::Variant is returned which shall then be converted
-        * to the real property type (implicit conversion is supported).
-        *
-        * Example of use:
-        * @code
-        * int state = object.getProperty("state").onInterface("com.kistler.foo");
-        * @endcode
-        *
-        * @throws sdbus::Error in case of failure
-        */
+         * @brief Gets value of a property of the proxied D-Bus object
+         *
+         * @param[in] propertyName Name of the property
+         * @return A helper object for convenient getting of property value
+         *
+         * This is a high-level, convenience way of reading D-Bus property values that abstracts
+         * from the D-Bus message concept. sdbus::Variant is returned which shall then be converted
+         * to the real property type (implicit conversion is supported).
+         *
+         * Example of use:
+         * @code
+         * int state = object.getProperty("state").onInterface("com.kistler.foo");
+         * @endcode
+         *
+         * @throws sdbus::Error in case of failure
+         */
        PropertyGetter getProperty(const std::string& propertyName);

        /*!
-        * @brief Sets value of a property of the proxied D-Bus object
-        *
-        * @param[in] propertyName Name of the property
-        * @return A helper object for convenient setting of property value
-        *
-        * This is a high-level, convenience way of writing D-Bus property values that abstracts
-        * from the D-Bus message concept.
-        *
-        * Example of use:
-        * @code
-        * int state = ...;
-        * object_.setProperty("state").onInterface("com.kistler.foo").toValue(state);
-        * @endcode
-        *
-        * @throws sdbus::Error in case of failure
-        */
+         * @brief Sets value of a property of the proxied D-Bus object
+         *
+         * @param[in] propertyName Name of the property
+         * @return A helper object for convenient setting of property value
+         *
+         * This is a high-level, convenience way of writing D-Bus property values that abstracts
+         * from the D-Bus message concept.
+         *
+         * Example of use:
+         * @code
+         * int state = ...;
+         * object_.setProperty("state").onInterface("com.kistler.foo").toValue(state);
+         * @endcode
+         *
+         * @throws sdbus::Error in case of failure
+         */
        PropertySetter setProperty(const std::string& propertyName);
-
-        virtual ~IProxy() = default;
    };

    inline MethodInvoker IProxy::callMethod(const std::string& methodName)
@@ -289,68 +290,68 @@ namespace sdbus {
    }

    /*!
-    * @brief Creates a proxy object for a specific remote D-Bus object
-    *
-    * @param[in] connection D-Bus connection to be used by the proxy object
-    * @param[in] destination Bus name that provides the remote D-Bus object
-    * @param[in] objectPath Path of the remote D-Bus object
-    * @return Pointer to the proxy object instance
-    *
-    * The provided connection will be used by the proxy to issue calls against the object,
-    * and signals, if any, will be subscribed to on this connection. The caller still
-    * remains the owner of the connection (the proxy just keeps a reference to it), and
-    * should make sure that a processing loop is running on that connection, so the proxy
-    * may receive incoming signals and asynchronous method replies.
-    *
-    * Code example:
-    * @code
-    * auto proxy = sdbus::createProxy(connection, "com.kistler.foo", "/com/kistler/foo");
-    * @endcode
-    */
+     * @brief Creates a proxy object for a specific remote D-Bus object
+     *
+     * @param[in] connection D-Bus connection to be used by the proxy object
+     * @param[in] destination Bus name that provides the remote D-Bus object
+     * @param[in] objectPath Path of the remote D-Bus object
+     * @return Pointer to the proxy object instance
+     *
+     * The provided connection will be used by the proxy to issue calls against the object,
+     * and signals, if any, will be subscribed to on this connection. The caller still
+     * remains the owner of the connection (the proxy just keeps a reference to it), and
+     * should make sure that a processing loop is running on that connection, so the proxy
+     * may receive incoming signals and asynchronous method replies.
+     *
+     * Code example:
+     * @code
+     * auto proxy = sdbus::createProxy(connection, "com.kistler.foo", "/com/kistler/foo");
+     * @endcode
+     */
    std::unique_ptr<sdbus::IProxy> createProxy( sdbus::IConnection& connection
                                              , std::string destination
                                              , std::string objectPath );

    /*!
-    * @brief Creates a proxy object for a specific remote D-Bus object
-    *
-    * @param[in] connection D-Bus connection to be used by the proxy object
-    * @param[in] destination Bus name that provides the remote D-Bus object
-    * @param[in] objectPath Path of the remote D-Bus object
-    * @return Pointer to the object proxy instance
-    *
-    * The provided connection will be used by the proxy to issue calls against the object,
-    * and signals, if any, will be subscribed to on this connection. The Object proxy becomes
-    * an exclusive owner of this connection, and will automatically start a procesing loop
-    * upon that connection in a separate internal thread. Handlers for incoming signals and
-    * asynchronous method replies will be executed in the context of that thread.
-    *
-    * Code example:
-    * @code
-    * auto proxy = sdbus::createProxy(std::move(connection), "com.kistler.foo", "/com/kistler/foo");
-    * @endcode
-    */
+     * @brief Creates a proxy object for a specific remote D-Bus object
+     *
+     * @param[in] connection D-Bus connection to be used by the proxy object
+     * @param[in] destination Bus name that provides the remote D-Bus object
+     * @param[in] objectPath Path of the remote D-Bus object
+     * @return Pointer to the object proxy instance
+     *
+     * The provided connection will be used by the proxy to issue calls against the object,
+     * and signals, if any, will be subscribed to on this connection. The Object proxy becomes
+     * an exclusive owner of this connection, and will automatically start a procesing loop
+     * upon that connection in a separate internal thread. Handlers for incoming signals and
+     * asynchronous method replies will be executed in the context of that thread.
+     *
+     * Code example:
+     * @code
+     * auto proxy = sdbus::createProxy(std::move(connection), "com.kistler.foo", "/com/kistler/foo");
+     * @endcode
+     */
    std::unique_ptr<sdbus::IProxy> createProxy( std::unique_ptr<sdbus::IConnection>&& connection
                                              , std::string destination
                                              , std::string objectPath );

    /*!
-    * @brief Creates a proxy object for a specific remote D-Bus object
-    *
-    * @param[in] destination Bus name that provides the remote D-Bus object
-    * @param[in] objectPath Path of the remote D-Bus object
-    * @return Pointer to the object proxy instance
-    *
-    * No D-Bus connection is provided here, so the object proxy will create and manage
-    * his own connection, and will automatically start a procesing loop upon that connection
-    * in a separate internal thread. Handlers for incoming signals and asynchronous
-    * method replies will be executed in the context of that thread.
-    *
-    * Code example:
-    * @code
-    * auto proxy = sdbus::createProxy("com.kistler.foo", "/com/kistler/foo");
-    * @endcode
-    */
+     * @brief Creates a proxy object for a specific remote D-Bus object
+     *
+     * @param[in] destination Bus name that provides the remote D-Bus object
+     * @param[in] objectPath Path of the remote D-Bus object
+     * @return Pointer to the object proxy instance
+     *
+     * No D-Bus connection is provided here, so the object proxy will create and manage
+     * his own connection, and will automatically start a procesing loop upon that connection
+     * in a separate internal thread. Handlers for incoming signals and asynchronous
+     * method replies will be executed in the context of that thread.
+     *
+     * Code example:
+     * @code
+     * auto proxy = sdbus::createProxy("com.kistler.foo", "/com/kistler/foo");
+     * @endcode
+     */
    std::unique_ptr<sdbus::IProxy> createProxy( std::string destination
                                              , std::string objectPath );

@@ -1,84 +0,0 @@
-/**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
- *
- * @file Introspection.h
- *
- * Created on: Dec 13, 2016
- * Project: sdbus-c++
- * Description: High-level D-Bus IPC C++ library based on sd-bus
- *
- * This file is part of sdbus-c++.
- *
- * sdbus-c++ is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation, either version 2.1 of the License, or
- * (at your option) any later version.
- *
- * sdbus-c++ is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with sdbus-c++. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef SDBUS_CXX_INTROSPECTION_H_
-#define SDBUS_CXX_INTROSPECTION_H_
-
-#include <sdbus-c++/IObject.h>
-#include <sdbus-c++/IProxy.h>
-#include <string>
-
-namespace sdbus {
-
-    // Proxy for introspection
-    class introspectable_proxy
-    {
-        static constexpr const char* interfaceName = "org.freedesktop.DBus.Introspectable";
-
-    protected:
-        introspectable_proxy(sdbus::IProxy& object)
-            : object_(object)
-        {
-        }
-
-    public:
-        std::string Introspect()
-        {
-            std::string xml;
-            object_.callMethod("Introspect").onInterface(interfaceName).storeResultsTo(xml);
-            return xml;
-        }
-
-    private:
-        sdbus::IProxy& object_;
-    };
-
-    // Adaptor is not necessary if we want to rely on sdbus-provided introspection
-//    class introspectable_adaptor
-//    {
-//        static constexpr const char* interfaceName = "org.freedesktop.DBus.Introspectable";
-//
-//    protected:
-//        introspectable_adaptor(sdbus::IObject& object)
-//            : object_(object)
-//        {
-//            object_.registerMethod("Introspect").onInterface(interfaceName).implementedAs([this](){ return object_.introspect(); });
-//        }
-//
-//    public:
-//        std::string introspect()
-//        {
-//            std::string xml;
-//            object_.callMethod("Introspect").onInterface(interfaceName).storeResultsTo(xml);
-//            return xml;
-//        }
-//
-//    private:
-//        sdbus::IObject& object_;
-//    };
-
-}
-
-#endif /* SDBUS_CXX_INTROSPECTION_H_ */
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file Message.h
 *
@@ -43,6 +44,7 @@ namespace sdbus {
    class ObjectPath;
    class Signature;
    template <typename... _ValueTypes> class Struct;
+    struct UnixFd;
    class MethodReply;
    namespace internal {
        class ISdBus;
@@ -76,16 +78,6 @@ namespace sdbus {
    class Message
    {
    public:
-        Message() = default;
-        Message(internal::ISdBus* sdbus) noexcept;
-        Message(void *msg, internal::ISdBus* sdbus) noexcept;
-        Message(void *msg, internal::ISdBus* sdbus, adopt_message_t) noexcept;
-        Message(const Message&) noexcept;
-        Message& operator=(const Message&) noexcept;
-        Message(Message&& other) noexcept;
-        Message& operator=(Message&& other) noexcept;
-        ~Message();
-
        Message& operator<<(bool item);
        Message& operator<<(int16_t item);
        Message& operator<<(int32_t item);
@@ -100,6 +92,7 @@ namespace sdbus {
        Message& operator<<(const Variant &item);
        Message& operator<<(const ObjectPath &item);
        Message& operator<<(const Signature &item);
+        Message& operator<<(const UnixFd &item);

        Message& operator>>(bool& item);
        Message& operator>>(int16_t& item);
@@ -115,6 +108,7 @@ namespace sdbus {
        Message& operator>>(Variant &item);
        Message& operator>>(ObjectPath &item);
        Message& operator>>(Signature &item);
+        Message& operator>>(UnixFd &item);

        Message& openContainer(const std::string& signature);
        Message& closeContainer();
@@ -134,11 +128,12 @@ namespace sdbus {
        Message& enterStruct(const std::string& signature);
        Message& exitStruct();

-        operator bool() const;
+        explicit operator bool() const;
        void clearFlags();

        std::string getInterfaceName() const;
        std::string getMemberName() const;
+        std::string getSender() const;
        void peekType(std::string& type, std::string& contents) const;
        bool isValid() const;
        bool isEmpty() const;
@@ -147,6 +142,23 @@ namespace sdbus {
        void seal();
        void rewind(bool complete);

+        class Factory;
+
+    protected:
+        Message() = default;
+        explicit Message(internal::ISdBus* sdbus) noexcept;
+        Message(void *msg, internal::ISdBus* sdbus) noexcept;
+        Message(void *msg, internal::ISdBus* sdbus, adopt_message_t) noexcept;
+
+        Message(const Message&) noexcept;
+        Message& operator=(const Message&) noexcept;
+        Message(Message&& other) noexcept;
+        Message& operator=(Message&& other) noexcept;
+
+        ~Message();
+
+        friend Factory;
+
    protected:
        void* msg_{};
        internal::ISdBus* sdbus_{};
@@ -155,8 +167,11 @@ namespace sdbus {

    class MethodCall : public Message
    {
-    public:
        using Message::Message;
+        friend Factory;
+
+    public:
+        MethodCall() = default;
        MethodReply send() const;
        MethodReply createReply() const;
        MethodReply createErrorReply(const sdbus::Error& error) const;
@@ -170,29 +185,64 @@ namespace sdbus {

    class AsyncMethodCall : public Message
    {
+        using Message::Message;
+        friend Factory;
+
    public:
        using Slot = std::unique_ptr<void, std::function<void(void*)>>;

-        using Message::Message;
-        AsyncMethodCall() = default; // Fixes gcc 6.3 error (default c-tor is not imported in above using declaration)
-        AsyncMethodCall(MethodCall&& call) noexcept;
+        AsyncMethodCall() = default;
+        explicit AsyncMethodCall(MethodCall&& call) noexcept;
        Slot send(void* callback, void* userData) const;
    };

    class MethodReply : public Message
    {
-    public:
        using Message::Message;
+        friend Factory;
+
+    public:
+        MethodReply() = default;
        void send() const;
    };

    class Signal : public Message
    {
-    public:
        using Message::Message;
+        friend Factory;
+
+    public:
+        Signal() = default;
        void send() const;
    };

+    class PropertySetCall : public Message
+    {
+        using Message::Message;
+        friend Factory;
+
+    public:
+        PropertySetCall() = default;
+    };
+
+    class PropertyGetReply : public Message
+    {
+        using Message::Message;
+        friend Factory;
+
+    public:
+        PropertyGetReply() = default;
+    };
+
+    class PlainMessage : public Message
+    {
+        using Message::Message;
+        friend Factory;
+
+    public:
+        PlainMessage() = default;
+    };
+
    template <typename _Element>
    inline Message& operator<<(Message& msg, const std::vector<_Element>& items)
    {
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file MethodResult.h
 *
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file ProxyInterfaces.h
 *
@@ -94,14 +95,14 @@ namespace sdbus {
    {
    public:
        /*!
-        * @brief Creates native-like proxy object instance
-        *
-        * @param[in] destination Bus name that provides a D-Bus object
-        * @param[in] objectPath Path of the D-Bus object
-        *
-        * This constructor overload creates a proxy that manages its own D-Bus connection(s).
-        * For more information on its behavior, consult @ref createProxy(std::string,std::string)
-        */
+         * @brief Creates native-like proxy object instance
+         *
+         * @param[in] destination Bus name that provides a D-Bus object
+         * @param[in] objectPath Path of the D-Bus object
+         *
+         * This constructor overload creates a proxy that manages its own D-Bus connection(s).
+         * For more information on its behavior, consult @ref createProxy(std::string,std::string)
+         */
        ProxyInterfaces(std::string destination, std::string objectPath)
            : ProxyObjectHolder(createProxy(std::move(destination), std::move(objectPath)))
            , _Interfaces(getProxy())...
@@ -109,15 +110,15 @@ namespace sdbus {
        }

        /*!
-        * @brief Creates native-like proxy object instance
-        *
-        * @param[in] connection D-Bus connection to be used by the proxy object
-        * @param[in] destination Bus name that provides a D-Bus object
-        * @param[in] objectPath Path of the D-Bus object
-        *
-        * The proxy created this way just references a D-Bus connection owned and managed by the user.
-        * For more information on its behavior, consult @ref createProxy(IConnection&,std::string,std::string)
-        */
+         * @brief Creates native-like proxy object instance
+         *
+         * @param[in] connection D-Bus connection to be used by the proxy object
+         * @param[in] destination Bus name that provides a D-Bus object
+         * @param[in] objectPath Path of the D-Bus object
+         *
+         * The proxy created this way just references a D-Bus connection owned and managed by the user.
+         * For more information on its behavior, consult @ref createProxy(IConnection&,std::string,std::string)
+         */
        ProxyInterfaces(IConnection& connection, std::string destination, std::string objectPath)
            : ProxyObjectHolder(createProxy(connection, std::move(destination), std::move(objectPath)))
            , _Interfaces(getProxy())...
@@ -125,15 +126,15 @@ namespace sdbus {
        }

        /*!
-        * @brief Creates native-like proxy object instance
-        *
-        * @param[in] connection D-Bus connection to be used by the proxy object
-        * @param[in] destination Bus name that provides a D-Bus object
-        * @param[in] objectPath Path of the D-Bus object
-        *
-        * The proxy created this way becomes an owner of the connection.
-        * For more information on its behavior, consult @ref createProxy(std::unique_ptr<sdbus::IConnection>&&,std::string,std::string)
-        */
+         * @brief Creates native-like proxy object instance
+         *
+         * @param[in] connection D-Bus connection to be used by the proxy object
+         * @param[in] destination Bus name that provides a D-Bus object
+         * @param[in] objectPath Path of the D-Bus object
+         *
+         * The proxy created this way becomes an owner of the connection.
+         * For more information on its behavior, consult @ref createProxy(std::unique_ptr<sdbus::IConnection>&&,std::string,std::string)
+         */
        ProxyInterfaces(std::unique_ptr<sdbus::IConnection>&& connection, std::string destination, std::string objectPath)
            : ProxyObjectHolder(createProxy(std::move(connection), std::move(destination), std::move(objectPath)))
            , _Interfaces(getProxy())...
@@ -0,0 +1,262 @@
+/**
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
+ *
+ * @file StandardInterfaces.h
+ *
+ * Created on: Dec 13, 2016
+ * Project: sdbus-c++
+ * Description: High-level D-Bus IPC C++ library based on sd-bus
+ *
+ * This file is part of sdbus-c++.
+ *
+ * sdbus-c++ is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 2.1 of the License, or
+ * (at your option) any later version.
+ *
+ * sdbus-c++ is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with sdbus-c++. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef SDBUS_CXX_STANDARDINTERFACES_H_
+#define SDBUS_CXX_STANDARDINTERFACES_H_
+
+#include <sdbus-c++/IObject.h>
+#include <sdbus-c++/IProxy.h>
+#include <sdbus-c++/Types.h>
+#include <string>
+#include <map>
+#include <vector>
+
+namespace sdbus {
+
+    // Proxy for peer
+    class Peer_proxy
+    {
+        static constexpr const char* INTERFACE_NAME = "org.freedesktop.DBus.Peer";
+
+    protected:
+        Peer_proxy(sdbus::IProxy& proxy)
+            : proxy_(proxy)
+        {
+        }
+
+        ~Peer_proxy() = default;
+
+    public:
+        void Ping()
+        {
+            proxy_.callMethod("Ping").onInterface(INTERFACE_NAME);
+        }
+
+        std::string GetMachineId()
+        {
+            std::string machineUUID;
+            proxy_.callMethod("GetMachineId").onInterface(INTERFACE_NAME).storeResultsTo(machineUUID);
+            return machineUUID;
+        }
+
+    private:
+        sdbus::IProxy& proxy_;
+    };
+
+    // Proxy for introspection
+    class Introspectable_proxy
+    {
+        static constexpr const char* INTERFACE_NAME = "org.freedesktop.DBus.Introspectable";
+
+    protected:
+        Introspectable_proxy(sdbus::IProxy& proxy)
+            : proxy_(proxy)
+        {
+        }
+
+        ~Introspectable_proxy() = default;
+
+    public:
+        std::string Introspect()
+        {
+            std::string xml;
+            proxy_.callMethod("Introspect").onInterface(INTERFACE_NAME).storeResultsTo(xml);
+            return xml;
+        }
+
+    private:
+        sdbus::IProxy& proxy_;
+    };
+
+    // Proxy for properties
+    class Properties_proxy
+    {
+        static constexpr const char* INTERFACE_NAME = "org.freedesktop.DBus.Properties";
+
+    protected:
+        Properties_proxy(sdbus::IProxy& proxy)
+            : proxy_(proxy)
+        {
+            proxy_
+                .uponSignal("PropertiesChanged")
+                .onInterface(INTERFACE_NAME)
+                .call([this]( const std::string& interfaceName
+                            , const std::map<std::string, sdbus::Variant>& changedProperties
+                            , const std::vector<std::string>& invalidatedProperties )
+                            {
+                                this->onPropertiesChanged(interfaceName, changedProperties, invalidatedProperties);
+                            });
+        }
+
+        ~Properties_proxy() = default;
+
+        virtual void onPropertiesChanged( const std::string& interfaceName
+                                        , const std::map<std::string, sdbus::Variant>& changedProperties
+                                        , const std::vector<std::string>& invalidatedProperties ) = 0;
+
+    public:
+        sdbus::Variant Get(const std::string& interfaceName, const std::string& propertyName)
+        {
+            return proxy_.getProperty(propertyName).onInterface(interfaceName);
+        }
+
+        void Set(const std::string& interfaceName, const std::string& propertyName, const sdbus::Variant& value)
+        {
+            proxy_.setProperty(propertyName).onInterface(interfaceName).toValue(value);
+        }
+
+        std::map<std::string, sdbus::Variant> GetAll(const std::string& interfaceName)
+        {
+            std::map<std::string, sdbus::Variant> props;
+            proxy_.callMethod("GetAll").onInterface(INTERFACE_NAME).withArguments(interfaceName).storeResultsTo(props);
+            return props;
+        }
+
+    private:
+        sdbus::IProxy& proxy_;
+    };
+
+    // Proxy for object manager
+    class ObjectManager_proxy
+    {
+        static constexpr const char* INTERFACE_NAME = "org.freedesktop.DBus.ObjectManager";
+
+    protected:
+        ObjectManager_proxy(sdbus::IProxy& proxy)
+            : proxy_(proxy)
+        {
+            proxy_
+                .uponSignal("InterfacesAdded")
+                .onInterface(INTERFACE_NAME)
+                .call([this]( const sdbus::ObjectPath& objectPath
+                            , const std::map<std::string, std::map<std::string, sdbus::Variant>>& interfacesAndProperties )
+                            {
+                                this->onInterfacesAdded(objectPath, interfacesAndProperties);
+                            });
+
+            proxy_
+                .uponSignal("InterfacesRemoved")
+                .onInterface(INTERFACE_NAME)
+                .call([this]( const sdbus::ObjectPath& objectPath
+                            , const std::vector<std::string>& interfaces )
+                            {
+                                this->onInterfacesRemoved(objectPath, interfaces);
+                            });
+        }
+
+        ~ObjectManager_proxy() = default;
+
+        virtual void onInterfacesAdded( const sdbus::ObjectPath& objectPath
+                                      , const std::map<std::string, std::map<std::string, sdbus::Variant>>& interfacesAndProperties) = 0;
+        virtual void onInterfacesRemoved( const sdbus::ObjectPath& objectPath
+                                        , const std::vector<std::string>& interfaces) = 0;
+
+    public:
+        std::map<sdbus::ObjectPath, std::map<std::string, std::map<std::string, sdbus::Variant>>> GetManagedObjects()
+        {
+            std::map<sdbus::ObjectPath, std::map<std::string, std::map<std::string, sdbus::Variant>>> objectsInterfacesAndProperties;
+            proxy_.callMethod("GetManagedObjects").onInterface(INTERFACE_NAME).storeResultsTo(objectsInterfacesAndProperties);
+            return objectsInterfacesAndProperties;
+        }
+
+    private:
+        sdbus::IProxy& proxy_;
+    };
+
+    // Adaptors for the above-listed standard D-Bus interfaces are not necessary because the functionality
+    // is provided by underlying libsystemd implementation. The exception is Properties_adaptor and
+    // ObjectManager_adaptor, which provide convenience functionality to emit signals.
+
+    // Adaptor for properties
+    class Properties_adaptor
+    {
+        static constexpr const char* INTERFACE_NAME = "org.freedesktop.DBus.Properties";
+
+    protected:
+        Properties_adaptor(sdbus::IObject& object)
+            : object_(object)
+        {
+        }
+
+        ~Properties_adaptor() = default;
+
+    public:
+        void emitPropertiesChangedSignal(const std::string& interfaceName, const std::vector<std::string>& properties)
+        {
+            object_.emitPropertiesChangedSignal(interfaceName, properties);
+        }
+
+        void emitPropertiesChangedSignal(const std::string& interfaceName)
+        {
+            object_.emitPropertiesChangedSignal(interfaceName);
+        }
+
+    private:
+        sdbus::IObject& object_;
+    };
+
+    // Adaptor for object manager
+    class ObjectManager_adaptor
+    {
+        static constexpr const char* INTERFACE_NAME = "org.freedesktop.DBus.ObjectManager";
+
+    protected:
+        ObjectManager_adaptor(sdbus::IObject& object)
+            : object_(object)
+        {
+            object_.addObjectManager();
+        }
+
+        ~ObjectManager_adaptor() = default;
+
+    public:
+        void emitInterfacesAddedSignal()
+        {
+            object_.emitInterfacesAddedSignal();
+        }
+
+        void emitInterfacesAddedSignal(const std::vector<std::string>& interfaces)
+        {
+            object_.emitInterfacesAddedSignal(interfaces);
+        }
+
+        void emitInterfacesRemovedSignal()
+        {
+            object_.emitInterfacesRemovedSignal();
+        }
+
+        void emitInterfacesRemovedSignal(const std::vector<std::string>& interfaces)
+        {
+            object_.emitInterfacesRemovedSignal(interfaces);
+        }
+
+    private:
+        sdbus::IObject& object_;
+    };
+
+}
+
+#endif /* SDBUS_CXX_STANDARDINTERFACES_H_ */
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file TypeTraits.h
 *
@@ -40,10 +41,12 @@ namespace sdbus {
    template <typename... _ValueTypes> class Struct;
    class ObjectPath;
    class Signature;
-    class Message;
+    struct UnixFd;
    class MethodCall;
    class MethodReply;
    class Signal;
+    class PropertySetCall;
+    class PropertyGetReply;
    template <typename... _Results> class Result;
    class Error;
 }
@@ -53,8 +56,8 @@ namespace sdbus {
    using method_callback = std::function<void(MethodCall msg)>;
    using async_reply_handler = std::function<void(MethodReply& reply, const Error* error)>;
    using signal_handler = std::function<void(Signal& signal)>;
-    using property_set_callback = std::function<void(Message& msg)>;
-    using property_get_callback = std::function<void(Message& reply)>;
+    using property_set_callback = std::function<void(PropertySetCall& msg)>;
+    using property_get_callback = std::function<void(PropertyGetReply& reply)>;

    template <typename _T>
    struct signature_of
@@ -285,6 +288,17 @@ namespace sdbus {
        }
    };

+    template <>
+    struct signature_of<UnixFd>
+    {
+        static constexpr bool is_valid = true;
+
+        static const std::string str()
+        {
+            return "h";
+        }
+    };
+
    template <typename _Element>
    struct signature_of<std::vector<_Element>>
    {
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file Types.h
 *
@@ -33,6 +34,7 @@
 #include <typeinfo>
 #include <memory>
 #include <tuple>
+#include <unistd.h>

 namespace sdbus {

@@ -94,9 +96,15 @@ namespace sdbus {
        std::string peekValueType() const;

    private:
-        mutable Message msg_{};
+        mutable PlainMessage msg_{};
    };

+    /********************************************//**
+     * @class Struct
+     *
+     * Representation of struct D-Bus type
+     *
+     ***********************************************/
    template <typename... _ValueTypes>
    class Struct
        : public std::tuple<_ValueTypes...>
@@ -135,6 +143,12 @@ namespace sdbus {
        return result_type(std::forward<_Elements>(args)...);
    }

+    /********************************************//**
+     * @class ObjectPath
+     *
+     * Representation of object path D-Bus type
+     *
+     ***********************************************/
    class ObjectPath : public std::string
    {
    public:
@@ -146,6 +160,12 @@ namespace sdbus {
        using std::string::operator=;
    };

+    /********************************************//**
+     * @class Signature
+     *
+     * Representation of Signature D-Bus type
+     *
+     ***********************************************/
    class Signature : public std::string
    {
    public:
@@ -157,6 +177,106 @@ namespace sdbus {
        using std::string::operator=;
    };

+    struct adopt_fd_t { explicit adopt_fd_t() = default; };
+#ifdef __cpp_inline_variables
+    inline constexpr adopt_fd_t adopt_fd{};
+#else
+    constexpr adopt_fd_t adopt_fd{};
+#endif
+
+    /********************************************//**
+     * @struct UnixFd
+     *
+     * UnixFd is a representation of file descriptor D-Bus type that owns
+     * the underlying fd, provides access to it, and closes the fd when
+     * the UnixFd goes out of scope.
+     *
+     * UnixFd can be default constructed (owning invalid fd), or constructed from
+     * an explicitly provided fd by either duplicating or adopting that fd as-is.
+     *
+     ***********************************************/
+    class UnixFd
+    {
+    public:
+        UnixFd() = default;
+
+        explicit UnixFd(int fd)
+            : fd_(::dup(fd))
+        {
+        }
+
+        UnixFd(int fd, adopt_fd_t)
+            : fd_(fd)
+        {
+        }
+
+        UnixFd(const UnixFd& other)
+        {
+            *this = other;
+        }
+
+        UnixFd& operator=(const UnixFd& other)
+        {
+            close();
+            fd_ = ::dup(other.fd_);
+            return *this;
+        }
+
+        UnixFd(UnixFd&& other)
+        {
+            *this = std::move(other);
+        }
+
+        UnixFd& operator=(UnixFd&& other)
+        {
+            close();
+            fd_ = other.fd_;
+            other.fd_ = -1;
+            return *this;
+        }
+
+        ~UnixFd()
+        {
+            close();
+        }
+
+        int get() const
+        {
+            return fd_;
+        }
+
+        void reset(int fd = -1)
+        {
+            *this = UnixFd{fd};
+        }
+
+        void reset(int fd, adopt_fd_t)
+        {
+            *this = UnixFd{fd, adopt_fd};
+        }
+
+        int release()
+        {
+            auto fd = fd_;
+            fd_ = -1;
+            return fd;
+        }
+
+        bool isValid() const
+        {
+            return fd_ >= 0;
+        }
+
+    private:
+        void close()
+        {
+            if (fd_ >= 0)
+                ::close(fd_);
+        }
+
+        int fd_ = -1;
+    };
+
 }

 #endif /* SDBUS_CXX_TYPES_H_ */
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file sdbus-c++.h
 *
@@ -28,9 +29,10 @@
 #include <sdbus-c++/IProxy.h>
 #include <sdbus-c++/AdaptorInterfaces.h>
 #include <sdbus-c++/ProxyInterfaces.h>
+#include <sdbus-c++/StandardInterfaces.h>
 #include <sdbus-c++/Message.h>
 #include <sdbus-c++/MethodResult.h>
 #include <sdbus-c++/Types.h>
 #include <sdbus-c++/TypeTraits.h>
-#include <sdbus-c++/Introspection.h>
 #include <sdbus-c++/Error.h>
+#include <sdbus-c++/Flags.h>
@@ -1,14 +0,0 @@
-# Config file for the sdbus-c++ package.
-#
-# It defines the following variables:
-#  SDBUSCPP_VERSION      - version of sdbus-c++
-#  SDBUSCPP_FOUND        - set to true
-#  SDBUSCPP_INCLUDE_DIRS - include directories for sdbus-c++
-#  SDBUSCPP_LIBRARY_DIR  - library directories for sdbus-c++
-#  SDBUSCPP_LIBRARIES    - libraries to link against
-
-set(SDBUSCPP_VERSION "@SDBUSCPP_VERSION@")
-set(SDBUSCPP_FOUND "TRUE")
-set(SDBUSCPP_INCLUDE_DIRS "@CMAKE_INSTALL_FULL_INCLUDEDIR@")
-set(SDBUSCPP_LIBRARY_DIR "@CMAKE_INSTALL_FULL_LIBDIR@")
-set(SDBUSCPP_LIBRARIES sdbus-c++)
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file Connection.cpp
 *
@@ -25,6 +26,7 @@

 #include "Connection.h"
 #include "SdBus.h"
+#include "MessageUtils.h"
 #include <sdbus-c++/Message.h>
 #include <sdbus-c++/Error.h>
 #include "ScopeGuard.h"
@@ -33,6 +35,19 @@
 #include <poll.h>
 #include <sys/eventfd.h>

+namespace {
+
+std::vector</*const */char*> to_strv(const std::vector<std::string>& strings)
+{
+    std::vector</*const */char*> strv;
+    for (auto& str : strings)
+        strv.push_back(const_cast<char*>(str.c_str()));
+    strv.push_back(nullptr);
+    return strv;
+}
+
+}
+
 namespace sdbus { namespace internal {

 Connection::Connection(Connection::BusType type, std::unique_ptr<ISdBus>&& interface)
@@ -93,6 +108,15 @@ void Connection::leaveProcessingLoop()
    joinWithProcessingLoop();
 }

+sdbus::IConnection::PollData Connection::getProcessLoopPollData()
+{
+    ISdBus::PollData pollData;
+    auto r = iface_->sd_bus_get_poll_data(bus_.get(), &pollData);
+    SDBUS_THROW_ERROR_IF(r < 0, "Failed to get bus poll data", -r);
+
+    return {pollData.fd, pollData.events, pollData.timeout_usec};
+}
+
 const ISdBus& Connection::getSdBusInterface() const
 {
    return *iface_.get();
@@ -103,10 +127,28 @@ ISdBus& Connection::getSdBusInterface()
    return *iface_.get();
 }

-sd_bus_slot* Connection::addObjectVTable( const std::string& objectPath
-                                        , const std::string& interfaceName
-                                        , const sd_bus_vtable* vtable
-                                        , void* userData )
+void Connection::addObjectManager(const std::string& objectPath)
+{
+    Connection::addObjectManager(objectPath, nullptr);
+}
+
+SlotPtr Connection::addObjectManager(const std::string& objectPath, void* /*dummy*/)
+{
+    sd_bus_slot *slot{};
+
+    auto r = iface_->sd_bus_add_object_manager( bus_.get()
+                                              , &slot
+                                              , objectPath.c_str() );
+
+    SDBUS_THROW_ERROR_IF(r < 0, "Failed to add object manager", -r);
+
+    return {slot, [this](void *slot){ iface_->sd_bus_slot_unref((sd_bus_slot*)slot); }};
+}
+
+SlotPtr Connection::addObjectVTable( const std::string& objectPath
+                                   , const std::string& interfaceName
+                                   , const sd_bus_vtable* vtable
+                                   , void* userData )
 {
    sd_bus_slot *slot{};

@@ -119,12 +161,7 @@ sd_bus_slot* Connection::addObjectVTable( const std::string& objectPath

    SDBUS_THROW_ERROR_IF(r < 0, "Failed to register object vtable", -r);

-    return slot;
-}
-
-void Connection::removeObjectVTable(sd_bus_slot* vtableHandle)
-{
-    iface_->sd_bus_slot_unref(vtableHandle);
+    return {slot, [this](void *slot){ iface_->sd_bus_slot_unref((sd_bus_slot*)slot); }};
 }

 MethodCall Connection::createMethodCall( const std::string& destination
@@ -143,7 +180,7 @@ MethodCall Connection::createMethodCall( const std::string& destination

    SDBUS_THROW_ERROR_IF(r < 0, "Failed to create method call", -r);

-    return MethodCall{sdbusMsg, iface_.get(), adopt_message};
+    return Message::Factory::create<MethodCall>(sdbusMsg, iface_.get(), adopt_message);
 }

 Signal Connection::createSignal( const std::string& objectPath
@@ -160,14 +197,66 @@ Signal Connection::createSignal( const std::string& objectPath

    SDBUS_THROW_ERROR_IF(r < 0, "Failed to create signal", -r);

-    return Signal{sdbusSignal, iface_.get(), adopt_message};
+    return Message::Factory::create<Signal>(sdbusSignal, iface_.get(), adopt_message);
 }

-sd_bus_slot* Connection::registerSignalHandler( const std::string& objectPath
-                                              , const std::string& interfaceName
-                                              , const std::string& signalName
-                                              , sd_bus_message_handler_t callback
-                                              , void* userData )
+void Connection::emitPropertiesChangedSignal( const std::string& objectPath
+                                            , const std::string& interfaceName
+                                            , const std::vector<std::string>& propNames )
+{
+    auto names = to_strv(propNames);
+
+    auto r = iface_->sd_bus_emit_properties_changed_strv( bus_.get()
+                                                        , objectPath.c_str()
+                                                        , interfaceName.c_str()
+                                                        , propNames.empty() ? nullptr : &names[0] );
+
+    SDBUS_THROW_ERROR_IF(r < 0, "Failed to emit PropertiesChanged signal", -r);
+}
+
+void Connection::emitInterfacesAddedSignal(const std::string& objectPath)
+{
+    auto r = iface_->sd_bus_emit_object_added(bus_.get(), objectPath.c_str());
+
+    SDBUS_THROW_ERROR_IF(r < 0, "Failed to emit InterfacesAdded signal for all registered interfaces", -r);
+}
+
+void Connection::emitInterfacesAddedSignal( const std::string& objectPath
+                                          , const std::vector<std::string>& interfaces )
+{
+    auto names = to_strv(interfaces);
+
+    auto r = iface_->sd_bus_emit_interfaces_added_strv( bus_.get()
+                                                      , objectPath.c_str()
+                                                      , interfaces.empty() ? nullptr : &names[0] );
+
+    SDBUS_THROW_ERROR_IF(r < 0, "Failed to emit InterfacesAdded signal", -r);
+}
+
+void Connection::emitInterfacesRemovedSignal(const std::string& objectPath)
+{
+    auto r = iface_->sd_bus_emit_object_removed(bus_.get(), objectPath.c_str());
+
+    SDBUS_THROW_ERROR_IF(r < 0, "Failed to emit InterfacesRemoved signal for all registered interfaces", -r);
+}
+
+void Connection::emitInterfacesRemovedSignal( const std::string& objectPath
+                                            , const std::vector<std::string>& interfaces )
+{
+    auto names = to_strv(interfaces);
+
+    auto r = iface_->sd_bus_emit_interfaces_removed_strv( bus_.get()
+                                                        , objectPath.c_str()
+                                                        , interfaces.empty() ? nullptr : &names[0] );
+
+    SDBUS_THROW_ERROR_IF(r < 0, "Failed to emit InterfacesRemoved signal", -r);
+}
+
+SlotPtr Connection::registerSignalHandler( const std::string& objectPath
+                                         , const std::string& interfaceName
+                                         , const std::string& signalName
+                                         , sd_bus_message_handler_t callback
+                                         , void* userData )
 {
    sd_bus_slot *slot{};

@@ -176,12 +265,7 @@ sd_bus_slot* Connection::registerSignalHandler( const std::string& objectPath

    SDBUS_THROW_ERROR_IF(r < 0, "Failed to register signal handler", -r);

-    return slot;
-}
-
-void Connection::unregisterSignalHandler(sd_bus_slot* handlerCookie)
-{
-    iface_->sd_bus_slot_unref(handlerCookie);
+    return {slot, [this](void *slot){ iface_->sd_bus_slot_unref((sd_bus_slot*)slot); }};
 }

 sd_bus* Connection::openBus(Connection::BusType type)
@@ -253,11 +337,9 @@ void Connection::joinWithProcessingLoop()
 bool Connection::processPendingRequest()
 {
    auto bus = bus_.get();
-
    assert(bus != nullptr);

    int r = iface_->sd_bus_process(bus, nullptr);
-
    SDBUS_THROW_ERROR_IF(r < 0, "Failed to process bus requests", -r);

    return r > 0;
@@ -270,15 +352,12 @@ bool Connection::waitForNextRequest()
    assert(bus != nullptr);
    assert(loopExitFd_ != 0);

-    ISdBus::PollData sdbusPollData;
-    auto r = iface_->sd_bus_get_poll_data(bus, &sdbusPollData);
-    SDBUS_THROW_ERROR_IF(r < 0, "Failed to get bus poll data", -r);
-
+    auto sdbusPollData = getProcessLoopPollData();
    struct pollfd fds[] = {{sdbusPollData.fd, sdbusPollData.events, 0}, {loopExitFd_, POLLIN, 0}};
    auto fdsCount = sizeof(fds)/sizeof(fds[0]);

    auto timeout = sdbusPollData.timeout_usec == (uint64_t) -1 ? (uint64_t)-1 : (sdbusPollData.timeout_usec+999)/1000;
-    r = poll(fds, fdsCount, timeout);
+    auto r = poll(fds, fdsCount, timeout);

    if (r < 0 && errno == EINTR)
        return true; // Try again
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file Connection.h
 *
@@ -56,37 +57,50 @@ namespace sdbus { namespace internal {
        void enterProcessingLoop() override;
        void enterProcessingLoopAsync() override;
        void leaveProcessingLoop() override;
+        sdbus::IConnection::PollData getProcessLoopPollData() override;
+        bool processPendingRequest() override;
+
+        void addObjectManager(const std::string& objectPath) override;
+        SlotPtr addObjectManager(const std::string& objectPath, void* /*dummy*/) override;

        const ISdBus& getSdBusInterface() const override;
        ISdBus& getSdBusInterface() override;

-        sd_bus_slot* addObjectVTable( const std::string& objectPath
-                                    , const std::string& interfaceName
-                                    , const sd_bus_vtable* vtable
-                                    , void* userData ) override;
-        void removeObjectVTable(sd_bus_slot* vtableHandle) override;
+        SlotPtr addObjectVTable( const std::string& objectPath
+                               , const std::string& interfaceName
+                               , const sd_bus_vtable* vtable
+                               , void* userData ) override;

        MethodCall createMethodCall( const std::string& destination
                                   , const std::string& objectPath
                                   , const std::string& interfaceName
                                   , const std::string& methodName ) const override;
+
        Signal createSignal( const std::string& objectPath
                           , const std::string& interfaceName
                           , const std::string& signalName ) const override;

-        sd_bus_slot* registerSignalHandler( const std::string& objectPath
-                                          , const std::string& interfaceName
-                                          , const std::string& signalName
-                                          , sd_bus_message_handler_t callback
-                                          , void* userData ) override;
-        void unregisterSignalHandler(sd_bus_slot* handlerCookie) override;
+        void emitPropertiesChangedSignal( const std::string& objectPath
+                                        , const std::string& interfaceName
+                                        , const std::vector<std::string>& propNames ) override;
+        void emitInterfacesAddedSignal(const std::string& objectPath) override;
+        void emitInterfacesAddedSignal( const std::string& objectPath
+                                      , const std::vector<std::string>& interfaces ) override;
+        void emitInterfacesRemovedSignal(const std::string& objectPath) override;
+        void emitInterfacesRemovedSignal( const std::string& objectPath
+                                        , const std::vector<std::string>& interfaces ) override;
+
+        SlotPtr registerSignalHandler( const std::string& objectPath
+                                     , const std::string& interfaceName
+                                     , const std::string& signalName
+                                     , sd_bus_message_handler_t callback
+                                     , void* userData ) override;

    private:
        sd_bus* openBus(Connection::BusType type);
        void finishHandshake(sd_bus* bus);
        static int createProcessingLoopExitDescriptor();
        static void closeProcessingLoopExitDescriptor(int fd);
-        bool processPendingRequest();
        bool waitForNextRequest();
        static std::string composeSignalMatchFilter( const std::string& objectPath
                                                   , const std::string& interfaceName
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file ConvenienceApiClasses.cpp
 *
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file Error.cpp
 *
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file Flags.cpp
 *
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file IConnection.h
 *
@@ -29,6 +30,8 @@
 #include <systemd/sd-bus.h>
 #include <string>
 #include <memory>
+#include <functional>
+#include <vector>

 // Forward declaration
 namespace sdbus {
@@ -44,17 +47,20 @@ namespace sdbus {
 namespace sdbus {
 namespace internal {

+    using SlotPtr = std::unique_ptr<void, std::function<void(void*)>>;
+
    class IConnection
    {
    public:
+        virtual ~IConnection() = default;
+
        virtual const ISdBus& getSdBusInterface() const = 0;
        virtual ISdBus& getSdBusInterface() = 0;

-        virtual sd_bus_slot* addObjectVTable( const std::string& objectPath
-                                            , const std::string& interfaceName
-                                            , const sd_bus_vtable* vtable
-                                            , void* userData ) = 0;
-        virtual void removeObjectVTable(sd_bus_slot* vtableHandle) = 0;
+        virtual SlotPtr addObjectVTable( const std::string& objectPath
+                                       , const std::string& interfaceName
+                                       , const sd_bus_vtable* vtable
+                                       , void* userData ) = 0;

        virtual MethodCall createMethodCall( const std::string& destination
                                           , const std::string& objectPath
@@ -65,17 +71,26 @@ namespace internal {
                                   , const std::string& interfaceName
                                   , const std::string& signalName ) const = 0;

-        virtual sd_bus_slot* registerSignalHandler( const std::string& objectPath
-                                                  , const std::string& interfaceName
-                                                  , const std::string& signalName
-                                                  , sd_bus_message_handler_t callback
-                                                  , void* userData ) = 0;
-        virtual void unregisterSignalHandler(sd_bus_slot* handlerCookie) = 0;
+        virtual void emitPropertiesChangedSignal( const std::string& objectPath
+                                                , const std::string& interfaceName
+                                                , const std::vector<std::string>& propNames ) = 0;
+        virtual void emitInterfacesAddedSignal(const std::string& objectPath) = 0;
+        virtual void emitInterfacesAddedSignal( const std::string& objectPath
+                                              , const std::vector<std::string>& interfaces ) = 0;
+        virtual void emitInterfacesRemovedSignal(const std::string& objectPath) = 0;
+        virtual void emitInterfacesRemovedSignal( const std::string& objectPath
+                                                , const std::vector<std::string>& interfaces ) = 0;
+
+        virtual SlotPtr addObjectManager(const std::string& objectPath, void* /*dummy*/ = nullptr) = 0;
+
+        virtual SlotPtr registerSignalHandler( const std::string& objectPath
+                                             , const std::string& interfaceName
+                                             , const std::string& signalName
+                                             , sd_bus_message_handler_t callback
+                                             , void* userData ) = 0;

        virtual void enterProcessingLoopAsync() = 0;
        virtual void leaveProcessingLoop() = 0;
-
-        virtual ~IConnection() = default;
    };

 }
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file ISdBus.h
 * @author Ardazishvili Roman (ardazishvili.roman@yandex.ru)
@@ -53,11 +54,18 @@ namespace sdbus { namespace internal {
        virtual int sd_bus_message_new_method_return(sd_bus_message *call, sd_bus_message **m) = 0;
        virtual int sd_bus_message_new_method_error(sd_bus_message *call, sd_bus_message **m, const sd_bus_error *e) = 0;

+        virtual int sd_bus_emit_properties_changed_strv(sd_bus *bus, const char *path, const char *interface, char **names) = 0;
+        virtual int sd_bus_emit_object_added(sd_bus *bus, const char *path) = 0;
+        virtual int sd_bus_emit_object_removed(sd_bus *bus, const char *path) = 0;
+        virtual int sd_bus_emit_interfaces_added_strv(sd_bus *bus, const char *path, char **interfaces) = 0;
+        virtual int sd_bus_emit_interfaces_removed_strv(sd_bus *bus, const char *path, char **interfaces) = 0;
+
        virtual int sd_bus_open_user(sd_bus **ret) = 0;
        virtual int sd_bus_open_system(sd_bus **ret) = 0;
        virtual int sd_bus_request_name(sd_bus *bus, const char *name, uint64_t flags) = 0;
        virtual int sd_bus_release_name(sd_bus *bus, const char *name) = 0;
        virtual int sd_bus_add_object_vtable(sd_bus *bus, sd_bus_slot **slot, const char *path, const char *interface, const sd_bus_vtable *vtable, void *userdata) = 0;
+        virtual int sd_bus_add_object_manager(sd_bus *bus, sd_bus_slot **slot, const char *path) = 0;
        virtual int sd_bus_add_match(sd_bus *bus, sd_bus_slot **slot, const char *match, sd_bus_message_handler_t callback, void *userdata) = 0;
        virtual sd_bus_slot* sd_bus_slot_unref(sd_bus_slot *slot) = 0;

@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file Message.cpp
 *
@@ -210,7 +211,16 @@ Message& Message::operator<<(const ObjectPath &item)
 Message& Message::operator<<(const Signature &item)
 {
    auto r = sd_bus_message_append_basic((sd_bus_message*)msg_, SD_BUS_TYPE_SIGNATURE, item.c_str());
-    SDBUS_THROW_ERROR_IF(r < 0, "Failed to serialize an Signature value", -r);
+    SDBUS_THROW_ERROR_IF(r < 0, "Failed to serialize a Signature value", -r);
+
+    return *this;
+}
+
+Message& Message::operator<<(const UnixFd &item)
+{
+    auto fd = item.get();
+    auto r = sd_bus_message_append_basic((sd_bus_message*)msg_, SD_BUS_TYPE_UNIX_FD, &fd);
+    SDBUS_THROW_ERROR_IF(r < 0, "Failed to serialize a UnixFd value", -r);

    return *this;
 }
@@ -383,6 +393,20 @@ Message& Message::operator>>(Signature &item)
    return *this;
 }

+Message& Message::operator>>(UnixFd &item)
+{
+    int fd = -1;
+    auto r = sd_bus_message_read_basic((sd_bus_message*)msg_, SD_BUS_TYPE_UNIX_FD, &fd);
+    if (r == 0)
+        ok_ = false;
+
+    SDBUS_THROW_ERROR_IF(r < 0, "Failed to deserialize a UnixFd value", -r);
+
+    item.reset(fd);
+
+    return *this;
+}
+

 Message& Message::openContainer(const std::string& signature)
 {
@@ -566,6 +590,11 @@ std::string Message::getMemberName() const
    return sd_bus_message_get_member((sd_bus_message*)msg_);
 }

+std::string Message::getSender() const
+{
+    return sd_bus_message_get_sender((sd_bus_message*)msg_);
+}
+
 void Message::peekType(std::string& type, std::string& contents) const
 {
    char typeSig;
@@ -583,7 +612,7 @@ bool Message::isValid() const

 bool Message::isEmpty() const
 {
-    return sd_bus_message_is_empty((sd_bus_message*)msg_);
+    return sd_bus_message_is_empty((sd_bus_message*)msg_) != 0;
 }

 void MethodCall::dontExpectReply()
@@ -596,7 +625,7 @@ bool MethodCall::doesntExpectReply() const
 {
    auto r = sd_bus_message_get_expect_reply((sd_bus_message*)msg_);
    SDBUS_THROW_ERROR_IF(r < 0, "Failed to get the dont-expect-reply flag", -r);
-    return r > 0 ? false : true;
+    return r == 0;
 }

 MethodReply MethodCall::send() const
@@ -620,7 +649,7 @@ MethodReply MethodCall::sendWithReply() const

    SDBUS_THROW_ERROR_IF(r < 0, "Failed to call method", -r);

-    return MethodReply{sdbusReply, sdbus_, adopt_message};
+    return Factory::create<MethodReply>(sdbusReply, sdbus_, adopt_message);
 }

 MethodReply MethodCall::sendWithNoReply() const
@@ -628,7 +657,7 @@ MethodReply MethodCall::sendWithNoReply() const
    auto r = sdbus_->sd_bus_send(nullptr, (sd_bus_message*)msg_, nullptr);
    SDBUS_THROW_ERROR_IF(r < 0, "Failed to call method with no reply", -r);

-    return MethodReply{}; // No reply
+    return Factory::create<MethodReply>(); // No reply
 }

 MethodReply MethodCall::createReply() const
@@ -637,7 +666,7 @@ MethodReply MethodCall::createReply() const
    auto r = sdbus_->sd_bus_message_new_method_return((sd_bus_message*)msg_, &sdbusReply);
    SDBUS_THROW_ERROR_IF(r < 0, "Failed to create method reply", -r);

-    return MethodReply{sdbusReply, sdbus_, adopt_message};
+    return Factory::create<MethodReply>(sdbusReply, sdbus_, adopt_message);
 }

 MethodReply MethodCall::createErrorReply(const Error& error) const
@@ -650,7 +679,7 @@ MethodReply MethodCall::createErrorReply(const Error& error) const
    auto r = sdbus_->sd_bus_message_new_method_error((sd_bus_message*)msg_, &sdbusErrorReply, &sdbusError);
    SDBUS_THROW_ERROR_IF(r < 0, "Failed to create method error reply", -r);

-    return MethodReply{sdbusErrorReply, sdbus_, adopt_message};
+    return Factory::create<MethodReply>(sdbusErrorReply, sdbus_, adopt_message);
 }

 AsyncMethodCall::AsyncMethodCall(MethodCall&& call) noexcept
@@ -680,10 +709,21 @@ void Signal::send() const
    SDBUS_THROW_ERROR_IF(r < 0, "Failed to emit signal", -r);
 }

-Message createPlainMessage()
+PlainMessage createPlainMessage()
 {
    int r;

+    // All references to the bus (like created messages) must not outlive this thread (because messages refer to sdbus
+    // which is thread-local, and because BusReferenceKeeper below destroys the bus at thread exit).
+    // A more flexible solution would be that the caller would already provide an ISdBus reference as a parameter.
+    // Variant is one of the callers. This means Variant could no more be created in a stand-alone way, but
+    // through a factory of some existing facility (Object, Proxy, Connection...).
+    // TODO: Consider this alternative of creating Variant, it may live next to the current one. This function would
+    // get IConnection* parameter and IConnection would provide createPlainMessage factory (just like it already
+    // provides e.g. createMethodCall). If this parameter were null, the current mechanism would be used.
+
+    thread_local internal::SdBus sdbus;
+
    sd_bus* bus{};
    SCOPE_EXIT{ sd_bus_unref(bus); };
    r = sd_bus_default_system(&bus);
@@ -691,18 +731,22 @@ Message createPlainMessage()

    thread_local struct BusReferenceKeeper
    {
-        BusReferenceKeeper(sd_bus* bus) : bus_(bus) {}
-        ~BusReferenceKeeper() { sd_bus_unref(bus_); }
+        explicit BusReferenceKeeper(sd_bus* bus) : bus_(sd_bus_ref(bus)) { sd_bus_flush(bus_); }
+        ~BusReferenceKeeper() { sd_bus_flush_close_unref(bus_); }
        sd_bus* bus_{};
    } busReferenceKeeper{bus};

+    // Shelved here as handy thing for potential future tracing purposes:
+    //#include <unistd.h>
+    //#include <sys/syscall.h>
+    //#define gettid() syscall(SYS_gettid)
+    //printf("createPlainMessage: sd_bus*=[%p], n_ref=[%d], TID=[%d]\n", bus, *(unsigned*)bus, gettid());
+
    sd_bus_message* sdbusMsg{};
    r = sd_bus_message_new(bus, &sdbusMsg, _SD_BUS_MESSAGE_TYPE_INVALID);
    SDBUS_THROW_ERROR_IF(r < 0, "Failed to create a new message", -r);

-    thread_local internal::SdBus sdbus;
-
-    return Message{sdbusMsg, &sdbus, adopt_message};
+    return Message::Factory::create<PlainMessage>(sdbusMsg, &sdbus, adopt_message);
 }

 }
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file MessageUtils.h
 *
@@ -30,7 +31,35 @@

 namespace sdbus
 {
-    Message createPlainMessage();
+    class Message::Factory
+    {
+    public:
+        template<typename _Msg>
+        static _Msg create()
+        {
+            return _Msg{};
+        }
+
+        template<typename _Msg>
+        static _Msg create(void *msg)
+        {
+            return _Msg{msg};
+        }
+
+        template<typename _Msg>
+        static _Msg create(void *msg, internal::ISdBus* sdbus)
+        {
+            return _Msg{msg, sdbus};
+        }
+
+        template<typename _Msg>
+        static _Msg create(void *msg, internal::ISdBus* sdbus, adopt_message_t)
+        {
+            return _Msg{msg, sdbus, adopt_message};
+        }
+    };
+
+    PlainMessage createPlainMessage();
 }

 #endif /* SDBUS_CXX_INTERNAL_MESSAGEUTILS_H_ */
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file Object.cpp
 *
@@ -24,6 +25,7 @@
 */

 #include "Object.h"
+#include "MessageUtils.h"
 #include <sdbus-c++/IConnection.h>
 #include <sdbus-c++/Message.h>
 #include <sdbus-c++/Error.h>
@@ -135,6 +137,51 @@ void Object::emitSignal(const sdbus::Signal& message)
    message.send();
 }

+void Object::emitPropertiesChangedSignal(const std::string& interfaceName, const std::vector<std::string>& propNames)
+{
+    connection_.emitPropertiesChangedSignal(objectPath_, interfaceName, propNames);
+}
+
+void Object::emitPropertiesChangedSignal(const std::string& interfaceName)
+{
+    Object::emitPropertiesChangedSignal(interfaceName, {});
+}
+
+void Object::emitInterfacesAddedSignal()
+{
+    connection_.emitInterfacesAddedSignal(objectPath_);
+}
+
+void Object::emitInterfacesAddedSignal(const std::vector<std::string>& interfaces)
+{
+    connection_.emitInterfacesAddedSignal(objectPath_, interfaces);
+}
+
+void Object::emitInterfacesRemovedSignal()
+{
+    connection_.emitInterfacesRemovedSignal(objectPath_);
+}
+
+void Object::emitInterfacesRemovedSignal(const std::vector<std::string>& interfaces)
+{
+    connection_.emitInterfacesRemovedSignal(objectPath_, interfaces);
+}
+
+void Object::addObjectManager()
+{
+    objectManagerSlot_ = connection_.addObjectManager(objectPath_);
+}
+
+void Object::removeObjectManager()
+{
+    objectManagerSlot_.reset();
+}
+
+bool Object::hasObjectManager() const
+{
+    return objectManagerSlot_ != nullptr;
+}
+
 sdbus::IConnection& Object::getConnection() const
 {
    return dynamic_cast<sdbus::IConnection&>(connection_);
@@ -207,10 +254,7 @@ void Object::activateInterfaceVTable( const std::string& interfaceName
                                    , InterfaceData& interfaceData
                                    , const std::vector<sd_bus_vtable>& vtable )
 {
-    // Tell, don't ask
-    auto slot = connection_.addObjectVTable(objectPath_, interfaceName, &vtable[0], this);
-    interfaceData.slot_.reset(slot);
-    interfaceData.slot_.get_deleter() = [this](sd_bus_slot *slot){ connection_.removeObjectVTable(slot); };
+    interfaceData.slot_ = connection_.addObjectVTable(objectPath_, interfaceName, &vtable[0], this);
 }

 int Object::sdbus_method_callback(sd_bus_message *sdbusMessage, void *userData, sd_bus_error *retError)
@@ -218,7 +262,7 @@ int Object::sdbus_method_callback(sd_bus_message *sdbusMessage, void *userData,
    auto* object = static_cast<Object*>(userData);
    assert(object != nullptr);

-    MethodCall message{sdbusMessage, &object->connection_.getSdBusInterface()};
+    auto message = Message::Factory::create<MethodCall>(sdbusMessage, &object->connection_.getSdBusInterface());

    // Note: The lookup can be optimized by using sorted vectors instead of associative containers
    auto& callback = object->interfaces_[message.getInterfaceName()].methods_[message.getMemberName()].callback_;
@@ -256,7 +300,7 @@ int Object::sdbus_property_get_callback( sd_bus */*bus*/
        return 1;
    }

-    Message reply{sdbusReply, &object->connection_.getSdBusInterface()};
+    auto reply = Message::Factory::create<PropertyGetReply>(sdbusReply, &object->connection_.getSdBusInterface());

    try
    {
@@ -285,7 +329,7 @@ int Object::sdbus_property_set_callback( sd_bus */*bus*/
    auto& callback = object->interfaces_[interface].properties_[property].setCallback_;
    assert(callback);

-    Message value{sdbusValue, &object->connection_.getSdBusInterface()};
+    auto value = Message::Factory::create<PropertySetCall>(sdbusValue, &object->connection_.getSdBusInterface());

    try
    {
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file Object.h
 *
@@ -77,6 +78,16 @@ namespace internal {

        sdbus::Signal createSignal(const std::string& interfaceName, const std::string& signalName) override;
        void emitSignal(const sdbus::Signal& message) override;
+        void emitPropertiesChangedSignal(const std::string& interfaceName, const std::vector<std::string>& propNames) override;
+        void emitPropertiesChangedSignal(const std::string& interfaceName) override;
+        void emitInterfacesAddedSignal() override;
+        void emitInterfacesAddedSignal(const std::vector<std::string>& interfaces) override;
+        void emitInterfacesRemovedSignal() override;
+        void emitInterfacesRemovedSignal(const std::vector<std::string>& interfaces) override;
+
+        void addObjectManager() override;
+        void removeObjectManager() override;
+        bool hasObjectManager() const override;

        sdbus::IConnection& getConnection() const override;

@@ -112,7 +123,7 @@ namespace internal {
            std::vector<sd_bus_vtable> vtable_;
            Flags flags_;

-            std::unique_ptr<sd_bus_slot, std::function<void(sd_bus_slot*)>> slot_;
+            SlotPtr slot_;
        };

        static const std::vector<sd_bus_vtable>& createInterfaceVTable(InterfaceData& interfaceData);
@@ -143,6 +154,7 @@ namespace internal {
        sdbus::internal::IConnection& connection_;
        std::string objectPath_;
        std::map<InterfaceName, InterfaceData> interfaces_;
+        SlotPtr objectManagerSlot_;
    };

 }
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file Proxy.cpp
 *
@@ -25,6 +26,7 @@

 #include "Proxy.h"
 #include "IConnection.h"
+#include "MessageUtils.h"
 #include "sdbus-c++/Message.h"
 #include "sdbus-c++/IConnection.h"
 #include "sdbus-c++/Error.h"
@@ -113,13 +115,11 @@ void Proxy::registerSignalHandlers(sdbus::internal::IConnection& connection)
        {
            const auto& signalName = signalItem.first;
            auto& slot = signalItem.second.slot_;
-            auto* rawSlotPtr = connection.registerSignalHandler( objectPath_
-                                                               , interfaceName
-                                                               , signalName
-                                                               , &Proxy::sdbus_signal_callback
-                                                               , this );
-            slot.reset(rawSlotPtr);
-            slot.get_deleter() = [&connection](sd_bus_slot *slot){ connection.unregisterSignalHandler(slot); };
+            slot = connection.registerSignalHandler( objectPath_
+                                                   , interfaceName
+                                                   , signalName
+                                                   , &Proxy::sdbus_signal_callback
+                                                   , this );
        }
    }
 }
@@ -139,7 +139,7 @@ int Proxy::sdbus_async_reply_handler(sd_bus_message *sdbusMessage, void *userDat

    SCOPE_EXIT{ proxy.pendingAsyncCalls_.removeCall(asyncCallData->slot.get()); };

-    MethodReply message{sdbusMessage, &proxy.connection_->getSdBusInterface()};
+    auto message = Message::Factory::create<MethodReply>(sdbusMessage, &proxy.connection_->getSdBusInterface());

    const auto* error = sd_bus_message_get_error(sdbusMessage);
    if (error == nullptr)
@@ -160,7 +160,7 @@ int Proxy::sdbus_signal_callback(sd_bus_message *sdbusMessage, void *userData, s
    auto* proxy = static_cast<Proxy*>(userData);
    assert(proxy != nullptr);

-    Signal message{sdbusMessage, &proxy->connection_->getSdBusInterface()};
+    auto message = Message::Factory::create<Signal>(sdbusMessage, &proxy->connection_->getSdBusInterface());

    // Note: The lookup can be optimized by using sorted vectors instead of associative containers
    auto& callback = proxy->interfaces_[message.getInterfaceName()].signals_[message.getMemberName()].callback_;
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file Proxy.h
 *
@@ -27,6 +28,7 @@
 #define SDBUS_CXX_INTERNAL_PROXY_H_

 #include <sdbus-c++/IProxy.h>
+#include "IConnection.h"
 #include <systemd/sd-bus.h>
 #include <string>
 #include <memory>
@@ -34,11 +36,6 @@
 #include <unordered_map>
 #include <mutex>

-// Forward declarations
-namespace sdbus { namespace internal {
-    class IConnection;
-}}
-
 namespace sdbus {
 namespace internal {

@@ -83,7 +80,7 @@ namespace internal {
            struct SignalData
            {
                signal_handler callback_;
-                std::unique_ptr<sd_bus_slot, std::function<void(sd_bus_slot*)>> slot_;
+                SlotPtr slot_;
            };
            std::map<SignalName, SignalData> signals_;
        };
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file ScopeGuard.h
 *
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file SdBus.cpp
 * @author Ardazishvili Roman (ardazishvili.roman@yandex.ru)
@@ -91,6 +92,41 @@ int SdBus::sd_bus_message_new_method_error(sd_bus_message *call, sd_bus_message
    return ::sd_bus_message_new_method_error(call, m, e);
 }

+int SdBus::sd_bus_emit_properties_changed_strv(sd_bus *bus, const char *path, const char *interface, char **names)
+{
+    std::unique_lock<std::recursive_mutex> lock(sdbusMutex_);
+
+    return ::sd_bus_emit_properties_changed_strv(bus, path, interface, names);
+}
+
+int SdBus::sd_bus_emit_object_added(sd_bus *bus, const char *path)
+{
+    std::unique_lock<std::recursive_mutex> lock(sdbusMutex_);
+
+    return ::sd_bus_emit_object_added(bus, path);
+}
+
+int SdBus::sd_bus_emit_object_removed(sd_bus *bus, const char *path)
+{
+    std::unique_lock<std::recursive_mutex> lock(sdbusMutex_);
+
+    return ::sd_bus_emit_object_removed(bus, path);
+}
+
+int SdBus::sd_bus_emit_interfaces_added_strv(sd_bus *bus, const char *path, char **interfaces)
+{
+    std::unique_lock<std::recursive_mutex> lock(sdbusMutex_);
+
+    return ::sd_bus_emit_interfaces_added_strv(bus, path, interfaces);
+}
+
+int SdBus::sd_bus_emit_interfaces_removed_strv(sd_bus *bus, const char *path, char **interfaces)
+{
+    std::unique_lock<std::recursive_mutex> lock(sdbusMutex_);
+
+    return ::sd_bus_emit_interfaces_removed_strv(bus, path, interfaces);
+}
+
 int SdBus::sd_bus_open_user(sd_bus **ret)
 {
    return ::sd_bus_open_user(ret);
@@ -122,6 +158,13 @@ int SdBus::sd_bus_add_object_vtable(sd_bus *bus, sd_bus_slot **slot, const char
    return ::sd_bus_add_object_vtable(bus, slot, path, interface,  vtable, userdata);
 }

+int SdBus::sd_bus_add_object_manager(sd_bus *bus, sd_bus_slot **slot, const char *path)
+{
+    std::unique_lock<std::recursive_mutex> lock(sdbusMutex_);
+
+    return ::sd_bus_add_object_manager(bus, slot, path);
+}
+
 int SdBus::sd_bus_add_match(sd_bus *bus, sd_bus_slot **slot, const char *match, sd_bus_message_handler_t callback, void *userdata)
 {
    std::unique_lock<std::recursive_mutex> lock(sdbusMutex_);
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file SdBus.h
 * @author Ardazishvili Roman (ardazishvili.roman@yandex.ru)
@@ -47,11 +48,18 @@ public:
    virtual int sd_bus_message_new_method_return(sd_bus_message *call, sd_bus_message **m) override;
    virtual int sd_bus_message_new_method_error(sd_bus_message *call, sd_bus_message **m, const sd_bus_error *e) override;

+    virtual int sd_bus_emit_properties_changed_strv(sd_bus *bus, const char *path, const char *interface, char **names) override;
+    virtual int sd_bus_emit_object_added(sd_bus *bus, const char *path) override;
+    virtual int sd_bus_emit_object_removed(sd_bus *bus, const char *path) override;
+    virtual int sd_bus_emit_interfaces_added_strv(sd_bus *bus, const char *path, char **interfaces) override;
+    virtual int sd_bus_emit_interfaces_removed_strv(sd_bus *bus, const char *path, char **interfaces) override;
+
    virtual int sd_bus_open_user(sd_bus **ret) override;
    virtual int sd_bus_open_system(sd_bus **ret) override;
    virtual int sd_bus_request_name(sd_bus *bus, const char *name, uint64_t flags) override;
    virtual int sd_bus_release_name(sd_bus *bus, const char *name) override;
    virtual int sd_bus_add_object_vtable(sd_bus *bus, sd_bus_slot **slot, const char *path, const char *interface, const sd_bus_vtable *vtable, void *userdata) override;
+    virtual int sd_bus_add_object_manager(sd_bus *bus, sd_bus_slot **slot, const char *path) override;
    virtual int sd_bus_add_match(sd_bus *bus, sd_bus_slot **slot, const char *match, sd_bus_message_handler_t callback, void *userdata) override;
    virtual sd_bus_slot* sd_bus_slot_unref(sd_bus_slot *slot) override;

@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file Types.cpp
 *
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file VTableUtils.c
 *
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file VTableUtils.h
 *
@@ -1,87 +0,0 @@
-/**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
- *
- * @file TestingProxy.h
- *
- * Created on: Jan 2, 2017
- * Project: sdbus-c++
- * Description: High-level D-Bus IPC C++ library based on sd-bus
- *
- * This file is part of sdbus-c++.
- *
- * sdbus-c++ is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation, either version 2.1 of the License, or
- * (at your option) any later version.
- *
- * sdbus-c++ is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with sdbus-c++. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef SDBUS_CPP_INTEGRATIONTESTS_TESTINGPROXY_H_
-#define SDBUS_CPP_INTEGRATIONTESTS_TESTINGPROXY_H_
-
-#include "proxy-glue.h"
-
-class TestingProxy : public sdbus::ProxyInterfaces<::testing_proxy, sdbus::introspectable_proxy>
-{
-public:
-    TestingProxy(std::string destination, std::string objectPath)
-        : ProxyInterfaces(std::move(destination), std::move(objectPath))
-    {
-        registerProxy();
-    }
-
-    ~TestingProxy()
-    {
-        unregisterProxy();
-    }
-
-    int getSimpleCallCount() const { return m_simpleCallCounter; }
-    std::map<int32_t, std::string> getMap() const { return m_map; }
-    double getVariantValue() const { return m_variantValue; }
-    std::map<std::string, std::string> getSignatureFromSignal() const { return m_signature; }
-
-    void installDoOperationClientSideAsyncReplyHandler(std::function<void(uint32_t res, const sdbus::Error* err)> handler)
-    {
-        m_DoOperationClientSideAsyncReplyHandler = handler;
-    }
-
-protected:
-    void onSimpleSignal() override { ++m_simpleCallCounter; }
-
-    void onSignalWithMap(const std::map<int32_t, std::string>& m) override { m_map = m; }
-
-    void onSignalWithVariant(const sdbus::Variant& v) override
-    {
-        m_variantValue = v.get<double>();
-    }
-
-    void onSignalWithoutRegistration(const sdbus::Struct<std::string, sdbus::Struct<sdbus::Signature>>& s) override
-    {
-        m_signature[std::get<0>(s)] = static_cast<std::string>(std::get<0>(std::get<1>(s)));
-    }
-
-    void onDoOperationReply(uint32_t returnValue, const sdbus::Error* error) override
-    {
-        if (m_DoOperationClientSideAsyncReplyHandler)
-            m_DoOperationClientSideAsyncReplyHandler(returnValue, error);
-    }
-
-private:
-    int m_simpleCallCounter{};
-    std::map<int32_t, std::string> m_map;
-    double m_variantValue;
-    std::map<std::string, std::string> m_signature;
-
-    std::function<void(uint32_t res, const sdbus::Error* err)> m_DoOperationClientSideAsyncReplyHandler;
-};
-
-
-
-#endif /* SDBUS_CPP_INTEGRATIONTESTS_TESTINGPROXY_H_ */
@@ -1,46 +0,0 @@
-
-/*
- * This file was automatically generated by sdbus-c++-xml2cpp; DO NOT EDIT!
- */
-
-#ifndef __sdbuscpp__perftest_adaptor_h__adaptor__H__
-#define __sdbuscpp__perftest_adaptor_h__adaptor__H__
-
-#include <sdbus-c++/sdbus-c++.h>
-#include <string>
-#include <tuple>
-
-namespace org {
-namespace sdbuscpp {
-
-class perftests_adaptor
-{
-public:
-    static constexpr const char* interfaceName = "org.sdbuscpp.perftests";
-
-protected:
-    perftests_adaptor(sdbus::IObject& object)
-        : object_(object)
-    {
-        object_.registerMethod("sendDataSignals").onInterface(interfaceName).implementedAs([this](const uint32_t& numberOfSignals, const uint32_t& signalMsgSize){ return this->sendDataSignals(numberOfSignals, signalMsgSize); });
-        object_.registerMethod("concatenateTwoStrings").onInterface(interfaceName).implementedAs([this](const std::string& string1, const std::string& string2){ return this->concatenateTwoStrings(string1, string2); });
-        object_.registerSignal("dataSignal").onInterface(interfaceName).withParameters<std::string>();
-    }
-
-public:
-    void dataSignal(const std::string& data)
-    {
-        object_.emitSignal("dataSignal").onInterface(interfaceName).withArguments(data);
-    }
-
-private:
-    virtual void sendDataSignals(const uint32_t& numberOfSignals, const uint32_t& signalMsgSize) = 0;
-    virtual std::string concatenateTwoStrings(const std::string& string1, const std::string& string2) = 0;
-
-private:
-    sdbus::IObject& object_;
-};
-
-}} // namespaces
-
-#endif
@@ -21,9 +21,9 @@ if(result)
    message(FATAL_ERROR "Build step for googletest failed: ${result}")
 endif()

-set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
-set(BUILD_GMOCK ON CACHE BOOL "" FORCE)
-set(INSTALL_GTEST OFF CACHE BOOL "" FORCE)
+set(gtest_force_shared_crt ON CACHE INTERNAL "" FORCE)
+set(BUILD_GMOCK ON CACHE INTERNAL "" FORCE)
+set(INSTALL_GTEST OFF CACHE INTERNAL "" FORCE)

 set(BUILD_SHARED_LIBS_BAK ${BUILD_SHARED_LIBS})
 set(BUILD_SHARED_LIBS OFF)
@@ -84,7 +84,10 @@ include_directories(${CMAKE_CURRENT_SOURCE_DIR})
 # BUILD INFORMATION
 #----------------------------------

-add_executable(sdbus-c++-unit-tests ${UNITTESTS_SRCS} $<TARGET_OBJECTS:sdbus-cpp>)
+add_executable(sdbus-c++-unit-tests ${UNITTESTS_SRCS} $<TARGET_OBJECTS:sdbus-c++-objlib>)
+target_include_directories(sdbus-c++-unit-tests PRIVATE ${SYSTEMD_INCLUDE_DIRS}
+                                                        ${CMAKE_SOURCE_DIR}/src
+                                                        ${CMAKE_SOURCE_DIR}/include)
 target_link_libraries(sdbus-c++-unit-tests ${SYSTEMD_LIBRARIES} gmock gmock_main)

 add_executable(sdbus-c++-integration-tests ${INTEGRATIONTESTS_SRCS})
@@ -1,6 +1,6 @@
 # Taken from https://github.com/google/googletest/blob/master/googletest/README.md#incorporating-into-an-existing-cmake-project

-cmake_minimum_required(VERSION 2.8.2)
+cmake_minimum_required(VERSION 3.6)

 project(googletest-download NONE)

@@ -8,9 +8,11 @@ include(ExternalProject)

 ExternalProject_Add(googletest
    GIT_REPOSITORY    https://github.com/google/googletest.git
-    GIT_TAG           release-1.8.1
+    GIT_TAG           master
+    GIT_SHALLOW       1
    SOURCE_DIR        "${CMAKE_CURRENT_BINARY_DIR}/googletest-src"
    BINARY_DIR        "${CMAKE_CURRENT_BINARY_DIR}/googletest-build"
+    UPDATE_COMMAND    ""
    CONFIGURE_COMMAND ""
    BUILD_COMMAND     ""
    INSTALL_COMMAND   ""
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file AdaptorAndProxy_test.cpp
 *
@@ -24,9 +25,6 @@
 */

 // Own
-#include "Connection.h"
-#include "SdBus.h"
-
 #include "TestingAdaptor.h"
 #include "TestingProxy.h"

@@ -45,9 +43,13 @@
 #include <fstream>
 #include <future>

+#include <unistd.h>
+
 using ::testing::Eq;
+using ::testing::DoubleEq;
 using ::testing::Gt;
 using ::testing::ElementsAre;
+using ::testing::SizeIs;
 using namespace std::chrono_literals;

 namespace
@@ -68,6 +70,20 @@ public:
        s_connection->releaseName(INTERFACE_NAME);
    }

+    static bool waitUntil(std::atomic<bool>& flag, std::chrono::milliseconds timeout = 5s)
+    {
+        std::chrono::milliseconds elapsed{};
+        std::chrono::milliseconds step{5ms};
+        do {
+            std::this_thread::sleep_for(step);
+            elapsed += step;
+            if (elapsed > timeout)
+                return false;
+        } while (!flag);
+
+        return true;
+    }
+
 private:
    void SetUp() override
    {
@@ -196,6 +212,12 @@ TEST_F(SdbusTestObject, CallsMethodWithObjectPathSuccesfully)
    ASSERT_THAT(resObjectPath, Eq(OBJECT_PATH_VALUE));
 }

+TEST_F(SdbusTestObject, CallsMethodWithUnixFdSuccesfully)
+{
+    auto resUnixFd = m_proxy->getUnixFd();
+    ASSERT_THAT(resUnixFd.get(), Gt(UNIX_FD_VALUE));
+}
+
 TEST_F(SdbusTestObject, CallsMethodWithComplexTypeSuccesfully)
 {
    auto resComplex = m_proxy->getComplex();
@@ -206,14 +228,8 @@ TEST_F(SdbusTestObject, CallsMultiplyMethodWithNoReplyFlag)
 {
    m_proxy->multiplyWithNoReply(INT64_VALUE, DOUBLE_VALUE);

-    for (auto i = 0; i < 100; ++i)
-    {
-        if (m_adaptor->wasMultiplyCalled())
-            break;
-        std::this_thread::sleep_for(10ms);
-    }
-    ASSERT_TRUE(m_adaptor->wasMultiplyCalled());
-    ASSERT_THAT(m_adaptor->getMultiplyResult(), Eq(INT64_VALUE * DOUBLE_VALUE));
+    ASSERT_TRUE(waitUntil(m_adaptor->m_wasMultiplyCalled));
+    ASSERT_THAT(m_adaptor->m_multiplyResult, Eq(INT64_VALUE * DOUBLE_VALUE));
 }

 TEST_F(SdbusTestObject, CallsMethodThatThrowsError)
@@ -238,13 +254,7 @@ TEST_F(SdbusTestObject, CallsErrorThrowingMethodWithDontExpectReplySet)
 {
    ASSERT_NO_THROW(m_proxy->throwErrorWithNoReply());

-    for (auto i = 0; i < 100; ++i)
-    {
-        if (m_adaptor->wasThrowErrorCalled())
-            break;
-        std::this_thread::sleep_for(10ms);
-    }
-    ASSERT_TRUE(m_adaptor->wasThrowErrorCalled());
+    ASSERT_TRUE(waitUntil(m_adaptor->m_wasThrowErrorCalled));
 }

 TEST_F(SdbusTestObject, RunsServerSideAsynchoronousMethodAsynchronously)
@@ -362,67 +372,233 @@ TEST_F(SdbusTestObject, FailsCallingMethodOnNonexistentObject)

 TEST_F(SdbusTestObject, EmitsSimpleSignalSuccesfully)
 {
-    auto count = m_proxy->getSimpleCallCount();
-    m_adaptor->simpleSignal();
-    usleep(10000);
+    m_adaptor->emitSimpleSignal();

-    ASSERT_THAT(m_proxy->getSimpleCallCount(), Eq(count + 1));
+    ASSERT_TRUE(waitUntil(m_proxy->m_gotSimpleSignal));
 }

 TEST_F(SdbusTestObject, EmitsSignalWithMapSuccesfully)
 {
-    m_adaptor->signalWithMap({{0, "zero"}, {1, "one"}});
-    usleep(10000);
+    m_adaptor->emitSignalWithMap({{0, "zero"}, {1, "one"}});

-    auto map = m_proxy->getMap();
-    ASSERT_THAT(map[0], Eq("zero"));
-    ASSERT_THAT(map[1], Eq("one"));
+    ASSERT_TRUE(waitUntil(m_proxy->m_gotSignalWithMap));
+    ASSERT_THAT(m_proxy->m_mapFromSignal[0], Eq("zero"));
+    ASSERT_THAT(m_proxy->m_mapFromSignal[1], Eq("one"));
 }

 TEST_F(SdbusTestObject, EmitsSignalWithVariantSuccesfully)
 {
    double d = 3.14;
-    m_adaptor->signalWithVariant(3.14);
-    usleep(10000);
+    m_adaptor->emitSignalWithVariant(d);

-    ASSERT_THAT(m_proxy->getVariantValue(), d);
+    ASSERT_TRUE(waitUntil(m_proxy->m_gotSignalWithVariant));
+    ASSERT_THAT(m_proxy->m_variantFromSignal, DoubleEq(d));
 }

 TEST_F(SdbusTestObject, EmitsSignalWithoutRegistrationSuccesfully)
 {
-    m_adaptor->signalWithoutRegistration({"platform", {"av"}});
-    usleep(10000);
+    m_adaptor->emitSignalWithoutRegistration({"platform", {"av"}});

-    auto signature = m_proxy->getSignatureFromSignal();
-    ASSERT_THAT(signature["platform"], Eq("av"));
+    ASSERT_TRUE(waitUntil(m_proxy->m_gotSignalWithSignature));
+    ASSERT_THAT(m_proxy->m_signatureFromSignal["platform"], Eq("av"));
 }

 // Properties

-TEST_F(SdbusTestObject, ReadsReadPropertySuccesfully)
+TEST_F(SdbusTestObject, ReadsReadOnlyPropertySuccesfully)
 {
-    ASSERT_THAT(m_proxy->state(), Eq(STRING_VALUE));
+    ASSERT_THAT(m_proxy->state(), Eq(DEFAULT_STATE_VALUE));
+}
+
+TEST_F(SdbusTestObject, FailsWritingToReadOnlyProperty)
+{
+    ASSERT_THROW(m_proxy->state("new_value"), sdbus::Error);
 }

 TEST_F(SdbusTestObject, WritesAndReadsReadWritePropertySuccesfully)
 {
-    uint32_t x = 42;
-    ASSERT_NO_THROW(m_proxy->action(x));
-    ASSERT_THAT(m_proxy->action(), Eq(x));
+    uint32_t newActionValue = 5678;
+
+    m_proxy->action(newActionValue);
+
+    ASSERT_THAT(m_proxy->action(), Eq(newActionValue));
 }

-TEST_F(SdbusTestObject, WritesToWritePropertySuccesfully)
+// Standard D-Bus interfaces
+
+TEST_F(SdbusTestObject, PingsViaPeerInterface)
 {
-    auto x = true;
-    ASSERT_NO_THROW(m_proxy->blocking(x));
+    ASSERT_NO_THROW(m_proxy->Ping());
 }

-TEST_F(SdbusTestObject, CannotReadFromWriteProperty)
+TEST_F(SdbusTestObject, AnswersMachineUuidViaPeerInterface)
 {
-    ASSERT_THROW(m_proxy->blocking(), sdbus::Error);
+    // If /etc/machine-id does not exist in your system (which is very likely because you have
+    // a non-systemd Linux), org.freedesktop.DBus.Peer.GetMachineId() will not work. To solve
+    // this, you can create /etc/machine-id yourself as symlink to /var/lib/dbus/machine-id,
+    // and then org.freedesktop.DBus.Peer.GetMachineId() will start to work.
+    if (::access("/etc/machine-id", F_OK) == -1)
+        GTEST_SKIP() << "/etc/machine-id file does not exist, GetMachineId() will not work";
+
+    ASSERT_NO_THROW(m_proxy->GetMachineId());
 }

-TEST_F(SdbusTestObject, AnswersXmlApiDescriptionOnIntrospection)
+TEST_F(SdbusTestObject, AnswersXmlApiDescriptionViaIntrospectableInterface)
 {
    ASSERT_THAT(m_proxy->Introspect(), Eq(m_adaptor->getExpectedXmlApiDescription()));
 }
+
+TEST_F(SdbusTestObject, GetsPropertyViaPropertiesInterface)
+{
+    ASSERT_THAT(m_proxy->Get(INTERFACE_NAME, "state").get<std::string>(), Eq(DEFAULT_STATE_VALUE));
+}
+
+TEST_F(SdbusTestObject, SetsPropertyViaPropertiesInterface)
+{
+    uint32_t newActionValue = 2345;
+
+    m_proxy->Set(INTERFACE_NAME, "action", newActionValue);
+
+    ASSERT_THAT(m_proxy->action(), Eq(newActionValue));
+}
+
+TEST_F(SdbusTestObject, GetsAllPropertiesViaPropertiesInterface)
+{
+    const auto properties = m_proxy->GetAll(INTERFACE_NAME);
+
+    ASSERT_THAT(properties, SizeIs(3));
+    EXPECT_THAT(properties.at("state").get<std::string>(), Eq(DEFAULT_STATE_VALUE));
+    EXPECT_THAT(properties.at("action").get<uint32_t>(), Eq(DEFAULT_ACTION_VALUE));
+    EXPECT_THAT(properties.at("blocking").get<bool>(), Eq(DEFAULT_BLOCKING_VALUE));
+}
+
+TEST_F(SdbusTestObject, EmitsPropertyChangedSignalForSelectedProperties)
+{
+    std::atomic<bool> signalReceived{false};
+    m_proxy->m_onPropertiesChangedHandler = [&signalReceived]( const std::string& interfaceName
+                                                             , const std::map<std::string, sdbus::Variant>& changedProperties
+                                                             , const std::vector<std::string>& /*invalidatedProperties*/ )
+    {
+        EXPECT_THAT(interfaceName, Eq(INTERFACE_NAME));
+        EXPECT_THAT(changedProperties, SizeIs(1));
+        EXPECT_THAT(changedProperties.at("blocking").get<bool>(), Eq(!DEFAULT_BLOCKING_VALUE));
+        signalReceived = true;
+    };
+
+    m_proxy->blocking(!DEFAULT_BLOCKING_VALUE);
+    m_proxy->action(DEFAULT_ACTION_VALUE*2);
+    m_adaptor->emitPropertiesChangedSignal(INTERFACE_NAME, {"blocking"});
+
+    ASSERT_TRUE(waitUntil(signalReceived));
+}
+
+TEST_F(SdbusTestObject, EmitsPropertyChangedSignalForAllProperties)
+{
+    std::atomic<bool> signalReceived{false};
+    m_proxy->m_onPropertiesChangedHandler = [&signalReceived]( const std::string& interfaceName
+                                                             , const std::map<std::string, sdbus::Variant>& changedProperties
+                                                             , const std::vector<std::string>& invalidatedProperties )
+    {
+        EXPECT_THAT(interfaceName, Eq(INTERFACE_NAME));
+        EXPECT_THAT(changedProperties, SizeIs(1));
+        EXPECT_THAT(changedProperties.at("blocking").get<bool>(), Eq(DEFAULT_BLOCKING_VALUE));
+        ASSERT_THAT(invalidatedProperties, SizeIs(1));
+        EXPECT_THAT(invalidatedProperties[0], Eq("action"));
+        signalReceived = true;
+    };
+
+    m_adaptor->emitPropertiesChangedSignal(INTERFACE_NAME);
+
+    ASSERT_TRUE(waitUntil(signalReceived));
+}
+
+TEST_F(SdbusTestObject, GetsZeroManagedObjectsIfHasNoSubPathObjects)
+{
+    const auto objectsInterfacesAndProperties = m_proxy->GetManagedObjects();
+
+    ASSERT_THAT(objectsInterfacesAndProperties, SizeIs(0));
+}
+
+TEST_F(SdbusTestObject, GetsManagedObjectsSuccessfully)
+{
+    auto subObject1 = sdbus::createObject(*s_connection, "/sub/path1");
+    subObject1->registerProperty("aProperty1").onInterface("org.sdbuscpp.integrationtests.iface1").withGetter([]{return uint8_t{123};});
+    subObject1->finishRegistration();
+    auto subObject2 = sdbus::createObject(*s_connection, "/sub/path2");
+    subObject2->registerProperty("aProperty2").onInterface("org.sdbuscpp.integrationtests.iface2").withGetter([]{return "hi";});
+    subObject2->finishRegistration();
+
+    const auto objectsInterfacesAndProperties = m_proxy->GetManagedObjects();
+
+    ASSERT_THAT(objectsInterfacesAndProperties, SizeIs(2));
+    EXPECT_THAT(objectsInterfacesAndProperties.at("/sub/path1").at("org.sdbuscpp.integrationtests.iface1").at("aProperty1").get<uint8_t>(), Eq(123));
+    EXPECT_THAT(objectsInterfacesAndProperties.at("/sub/path2").at("org.sdbuscpp.integrationtests.iface2").at("aProperty2").get<std::string>(), Eq("hi"));
+}
+
+TEST_F(SdbusTestObject, EmitsInterfacesAddedSignalForSelectedObjectInterfaces)
+{
+    std::atomic<bool> signalReceived{false};
+    m_proxy->m_onInterfacesAddedHandler = [&signalReceived]( const sdbus::ObjectPath& objectPath
+                                                           , const std::map<std::string, std::map<std::string, sdbus::Variant>>& interfacesAndProperties )
+    {
+        EXPECT_THAT(objectPath, Eq(OBJECT_PATH));
+        EXPECT_THAT(interfacesAndProperties, SizeIs(1));
+        EXPECT_THAT(interfacesAndProperties.count(INTERFACE_NAME), Eq(1));
+        EXPECT_THAT(interfacesAndProperties.at(INTERFACE_NAME), SizeIs(3));
+        signalReceived = true;
+    };
+
+    m_adaptor->emitInterfacesAddedSignal({INTERFACE_NAME});
+
+    ASSERT_TRUE(waitUntil(signalReceived));
+}
+
+TEST_F(SdbusTestObject, EmitsInterfacesAddedSignalForAllObjectInterfaces)
+{
+    std::atomic<bool> signalReceived{false};
+    m_proxy->m_onInterfacesAddedHandler = [&signalReceived]( const sdbus::ObjectPath& objectPath
+                                                           , const std::map<std::string, std::map<std::string, sdbus::Variant>>& interfacesAndProperties )
+    {
+        EXPECT_THAT(objectPath, Eq(OBJECT_PATH));
+        EXPECT_THAT(interfacesAndProperties, SizeIs(5)); // INTERFACE_NAME + 4 standard interfaces
+        EXPECT_THAT(interfacesAndProperties.at(INTERFACE_NAME), SizeIs(3)); // 3 properties under INTERFACE_NAME
+        signalReceived = true;
+    };
+
+    m_adaptor->emitInterfacesAddedSignal();
+
+    ASSERT_TRUE(waitUntil(signalReceived));
+}
+
+TEST_F(SdbusTestObject, EmitsInterfacesRemovedSignalForSelectedObjectInterfaces)
+{
+    std::atomic<bool> signalReceived{false};
+    m_proxy->m_onInterfacesRemovedHandler = [&signalReceived]( const sdbus::ObjectPath& objectPath
+                                                             , const std::vector<std::string>& interfaces )
+    {
+        EXPECT_THAT(objectPath, Eq(OBJECT_PATH));
+        ASSERT_THAT(interfaces, SizeIs(1));
+        EXPECT_THAT(interfaces[0], Eq(INTERFACE_NAME));
+        signalReceived = true;
+    };
+
+    m_adaptor->emitInterfacesRemovedSignal({INTERFACE_NAME});
+
+    ASSERT_TRUE(waitUntil(signalReceived));
+}
+
+TEST_F(SdbusTestObject, EmitsInterfacesRemovedSignalForAllObjectInterfaces)
+{
+    std::atomic<bool> signalReceived{false};
+    m_proxy->m_onInterfacesRemovedHandler = [&signalReceived]( const sdbus::ObjectPath& objectPath
+                                                             , const std::vector<std::string>& interfaces )
+    {
+        EXPECT_THAT(objectPath, Eq(OBJECT_PATH));
+        ASSERT_THAT(interfaces, SizeIs(5)); // INTERFACE_NAME + 4 standard interfaces
+        signalReceived = true;
+    };
+
+    m_adaptor->emitInterfacesRemovedSignal();
+
+    ASSERT_TRUE(waitUntil(signalReceived));
+}
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file Connection_test.cpp
 *
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file TestingAdaptor.h
 *
@@ -31,7 +32,9 @@
 #include <chrono>
 #include <atomic>

-class TestingAdaptor : public sdbus::AdaptorInterfaces<testing_adaptor>
+class TestingAdaptor : public sdbus::AdaptorInterfaces< testing_adaptor
+                                                      , sdbus::Properties_adaptor
+                                                      , sdbus::ObjectManager_adaptor >
 {
 public:
    TestingAdaptor(sdbus::IConnection& connection) :
@@ -45,24 +48,31 @@ public:
        unregisterAdaptor();
    }

-    bool wasMultiplyCalled() const { return m_multiplyCalled; }
-    double getMultiplyResult() const { return m_multiplyResult; }
-    bool wasThrowErrorCalled() const { return m_throwErrorCalled; }
-
 protected:

-    void noArgNoReturn() const {}
+    void noArgNoReturn() const
+    {
+    }

-    int32_t getInt() const { return INT32_VALUE; }
+    int32_t getInt() const
+    {
+        return INT32_VALUE;
+    }

-    std::tuple<uint32_t, std::string> getTuple() const { return std::make_tuple(UINT32_VALUE, STRING_VALUE); }
+    std::tuple<uint32_t, std::string> getTuple() const
+    {
+        return std::make_tuple(UINT32_VALUE, STRING_VALUE);
+    }

-    double multiply(const int64_t& a, const double& b) const { return a * b; }
+    double multiply(const int64_t& a, const double& b) const
+    {
+        return a * b;
+    }

    void multiplyWithNoReply(const int64_t& a, const double& b) const
    {
        m_multiplyResult = a * b;
-        m_multiplyCalled = true;
+        m_wasMultiplyCalled = true;
    }

    std::vector<int16_t> getInts16FromStruct(const sdbus::Struct<uint8_t, int16_t, double, std::string, std::vector<int16_t>>& x) const
@@ -140,8 +150,18 @@ protected:
        }
    }

-    sdbus::Signature getSignature() const { return SIGNATURE_VALUE; }
-    sdbus::ObjectPath getObjectPath() const { return OBJECT_PATH_VALUE; }
+    sdbus::Signature getSignature() const
+    {
+        return SIGNATURE_VALUE;
+    }
+    sdbus::ObjectPath getObjectPath() const
+    {
+        return OBJECT_PATH_VALUE;
+    }
+    sdbus::UnixFd getUnixFd() const
+    {
+        return sdbus::UnixFd{UNIX_FD_VALUE};
+    }

    ComplexType getComplex() const
    {
@@ -173,24 +193,45 @@ protected:

    void throwError() const
    {
-        m_throwErrorCalled = true;
+        m_wasThrowErrorCalled = true;
        throw sdbus::createError(1, "A test error occurred");
    }

-    std::string state() { return STRING_VALUE; }
-    uint32_t action() { return m_action; }
-    void action(const uint32_t& value) { m_action = value; }
-    bool blocking() { return m_blocking; }
-    void blocking(const bool& value) { m_blocking = value; }
+    std::string state()
+    {
+        return m_state;
+    }
+
+    uint32_t action()
+    {
+        return m_action;
+    }
+
+    void action(const uint32_t& value)
+    {
+        m_action = value;
+    }
+
+    bool blocking()
+    {
+        return m_blocking;
+    }
+
+    void blocking(const bool& value)
+    {
+        m_blocking = value;
+    }

 private:
-    uint32_t m_action;
-    bool m_blocking;
+    const std::string m_state{DEFAULT_STATE_VALUE};
+    uint32_t m_action{DEFAULT_ACTION_VALUE};
+    bool m_blocking{DEFAULT_BLOCKING_VALUE};

+public: // for tests
    // For dont-expect-reply method call verifications
-    mutable std::atomic<bool> m_multiplyCalled{};
+    mutable std::atomic<bool> m_wasMultiplyCalled{false};
    mutable double m_multiplyResult{};
-    mutable std::atomic<bool> m_throwErrorCalled{};
+    mutable std::atomic<bool> m_wasThrowErrorCalled{false};
 };


@@ -0,0 +1,127 @@
+/**
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
+ *
+ * @file TestingProxy.h
+ *
+ * Created on: Jan 2, 2017
+ * Project: sdbus-c++
+ * Description: High-level D-Bus IPC C++ library based on sd-bus
+ *
+ * This file is part of sdbus-c++.
+ *
+ * sdbus-c++ is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 2.1 of the License, or
+ * (at your option) any later version.
+ *
+ * sdbus-c++ is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with sdbus-c++. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef SDBUS_CPP_INTEGRATIONTESTS_TESTINGPROXY_H_
+#define SDBUS_CPP_INTEGRATIONTESTS_TESTINGPROXY_H_
+
+#include "proxy-glue.h"
+#include <atomic>
+
+class TestingProxy : public sdbus::ProxyInterfaces< ::testing_proxy
+                                                  , sdbus::Peer_proxy
+                                                  , sdbus::Introspectable_proxy
+                                                  , sdbus::Properties_proxy
+                                                  , sdbus::ObjectManager_proxy >
+{
+public:
+    TestingProxy(std::string destination, std::string objectPath)
+        : ProxyInterfaces(std::move(destination), std::move(objectPath))
+    {
+        registerProxy();
+    }
+
+    ~TestingProxy()
+    {
+        unregisterProxy();
+    }
+
+    void installDoOperationClientSideAsyncReplyHandler(std::function<void(uint32_t res, const sdbus::Error* err)> handler)
+    {
+        m_DoOperationClientSideAsyncReplyHandler = handler;
+    }
+
+protected:
+    void onSimpleSignal() override
+    {
+        m_gotSimpleSignal = true;
+    }
+
+    void onSignalWithMap(const std::map<int32_t, std::string>& m) override
+    {
+        m_mapFromSignal = m;
+        m_gotSignalWithMap = true;
+    }
+
+    void onSignalWithVariant(const sdbus::Variant& v) override
+    {
+        m_variantFromSignal = v.get<double>();
+        m_gotSignalWithVariant = true;
+    }
+
+    void onSignalWithoutRegistration(const sdbus::Struct<std::string, sdbus::Struct<sdbus::Signature>>& s) override
+    {
+        m_signatureFromSignal[std::get<0>(s)] = static_cast<std::string>(std::get<0>(std::get<1>(s)));
+        m_gotSignalWithSignature = true;
+    }
+
+    void onDoOperationReply(uint32_t returnValue, const sdbus::Error* error) override
+    {
+        if (m_DoOperationClientSideAsyncReplyHandler)
+            m_DoOperationClientSideAsyncReplyHandler(returnValue, error);
+    }
+
+    // Signals of standard D-Bus interfaces
+
+    void onPropertiesChanged( const std::string& interfaceName
+                            , const std::map<std::string, sdbus::Variant>& changedProperties
+                            , const std::vector<std::string>& invalidatedProperties ) override
+    {
+        if (m_onPropertiesChangedHandler)
+            m_onPropertiesChangedHandler(interfaceName, changedProperties, invalidatedProperties);
+    }
+
+    void onInterfacesAdded( const sdbus::ObjectPath& objectPath
+                          , const std::map<std::string, std::map<std::string, sdbus::Variant>>& interfacesAndProperties) override
+    {
+        if (m_onInterfacesAddedHandler)
+            m_onInterfacesAddedHandler(objectPath, interfacesAndProperties);
+    }
+    void onInterfacesRemoved( const sdbus::ObjectPath& objectPath
+                            , const std::vector<std::string>& interfaces) override
+    {
+        if (m_onInterfacesRemovedHandler)
+            m_onInterfacesRemovedHandler(objectPath, interfaces);
+    }
+
+//private:
+public: // for tests
+    std::atomic<bool> m_gotSimpleSignal{false};
+    std::atomic<bool> m_gotSignalWithMap{false};
+    std::map<int32_t, std::string> m_mapFromSignal;
+    std::atomic<bool> m_gotSignalWithVariant{false};
+    double m_variantFromSignal;
+    std::atomic<bool> m_gotSignalWithSignature{false};
+    std::map<std::string, std::string> m_signatureFromSignal;
+
+    std::function<void(uint32_t res, const sdbus::Error* err)> m_DoOperationClientSideAsyncReplyHandler;
+    std::function<void(const std::string&, const std::map<std::string, sdbus::Variant>&, const std::vector<std::string>&)> m_onPropertiesChangedHandler;
+    std::function<void(const sdbus::ObjectPath&, const std::map<std::string, std::map<std::string, sdbus::Variant>>&)> m_onInterfacesAddedHandler;
+    std::function<void(const sdbus::ObjectPath&, const std::vector<std::string>&)> m_onInterfacesRemovedHandler;
+};
+
+
+
+#endif /* SDBUS_CPP_INTEGRATIONTESTS_TESTINGPROXY_H_ */
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file adaptor-glue.h
 *
@@ -52,7 +53,6 @@ using ComplexType = std::map<

 class testing_adaptor
 {
-
 protected:
    testing_adaptor(sdbus::IObject& object) :
        object_(object)
@@ -97,6 +97,7 @@ protected:

        object_.registerMethod("getSignature").onInterface(INTERFACE_NAME).implementedAs([this](){ return this->getSignature(); });
        object_.registerMethod("getObjectPath").onInterface(INTERFACE_NAME).implementedAs([this](){ return this->getObjectPath(); });
+        object_.registerMethod("getUnixFd").onInterface(INTERFACE_NAME).implementedAs([this](){ return this->getUnixFd(); });

        object_.registerMethod("getComplex").onInterface(INTERFACE_NAME).implementedAs([this](){ return this->getComplex(); }).markAsDeprecated();

@@ -111,28 +112,30 @@ protected:
        object_.registerSignal("signalWithVariant").onInterface(INTERFACE_NAME).withParameters<sdbus::Variant>();

        object_.registerProperty("state").onInterface(INTERFACE_NAME).withGetter([this](){ return this->state(); }).markAsDeprecated().withUpdateBehavior(sdbus::Flags::CONST_PROPERTY_VALUE);
-        object_.registerProperty("action").onInterface(INTERFACE_NAME).withGetter([this](){ return this->action(); }).withSetter([this](const uint32_t& value){ this->action(value); }).withUpdateBehavior(sdbus::Flags::EMITS_NO_SIGNAL);
-        object_.registerProperty("blocking").onInterface(INTERFACE_NAME)./*withGetter([this](){ return this->blocking(); }).*/withSetter([this](const bool& value){ this->blocking(value); });
-
+        object_.registerProperty("action").onInterface(INTERFACE_NAME).withGetter([this](){ return this->action(); }).withSetter([this](const uint32_t& value){ this->action(value); }).withUpdateBehavior(sdbus::Flags::EMITS_INVALIDATION_SIGNAL);
+        //object_.registerProperty("blocking").onInterface(INTERFACE_NAME)./*withGetter([this](){ return this->blocking(); }).*/withSetter([this](const bool& value){ this->blocking(value); });
+        object_.registerProperty("blocking").onInterface(INTERFACE_NAME).withGetter([this](){ return this->blocking(); }).withSetter([this](const bool& value){ this->blocking(value); });
    }

+    ~testing_adaptor() = default;
+
 public:
-    void simpleSignal()
+    void emitSimpleSignal()
    {
        object_.emitSignal("simpleSignal").onInterface(INTERFACE_NAME);
    }

-    void signalWithMap(const std::map<int32_t, std::string>& map)
+    void emitSignalWithMap(const std::map<int32_t, std::string>& map)
    {
        object_.emitSignal("signalWithMap").onInterface(INTERFACE_NAME).withArguments(map);
    }

-    void signalWithVariant(const sdbus::Variant& v)
+    void emitSignalWithVariant(const sdbus::Variant& v)
    {
        object_.emitSignal("signalWithVariant").onInterface(INTERFACE_NAME).withArguments(v);
    }

-    void signalWithoutRegistration(const sdbus::Struct<std::string, sdbus::Struct<sdbus::Signature>>& s)
+    void emitSignalWithoutRegistration(const sdbus::Struct<std::string, sdbus::Struct<sdbus::Signature>>& s)
    {
        object_.emitSignal("signalWithoutRegistration").onInterface(INTERFACE_NAME).withArguments(s);
    }
@@ -162,6 +165,7 @@ protected:
    virtual void doOperationAsync(uint32_t param, sdbus::Result<uint32_t> result) = 0;
    virtual sdbus::Signature getSignature() const  = 0;
    virtual sdbus::ObjectPath getObjectPath() const = 0;
+    virtual sdbus::UnixFd getUnixFd() const  = 0;
    virtual ComplexType getComplex() const = 0;
    virtual void throwError() const = 0;

@@ -210,6 +214,19 @@ R"delimiter(<!DOCTYPE node PUBLIC "-//freedesktop//DTD D-BUS Object Introspectio
   <arg type="as" name="invalidated_properties"/>
  </signal>
 </interface>
+ <interface name="org.freedesktop.DBus.ObjectManager">
+  <method name="GetManagedObjects">
+   <arg type="a{oa{sa{sv}}}" name="object_paths_interfaces_and_properties" direction="out"/>
+  </method>
+  <signal name="InterfacesAdded">
+   <arg type="o" name="object_path"/>
+   <arg type="a{sa{sv}}" name="interfaces_and_properties"/>
+  </signal>
+  <signal name="InterfacesRemoved">
+   <arg type="o" name="object_path"/>
+   <arg type="as" name="interfaces"/>
+  </signal>
+ </interface>
 <interface name="org.sdbuscpp.integrationtests">
  <annotation name="org.freedesktop.DBus.Deprecated" value="true"/>
  <method name="doOperation">
@@ -252,6 +269,9 @@ R"delimiter(<!DOCTYPE node PUBLIC "-//freedesktop//DTD D-BUS Object Introspectio
   <arg type="u" direction="out"/>
   <arg type="s" direction="out"/>
  </method>
+  <method name="getUnixFd">
+   <arg type="h" direction="out"/>
+  </method>
  <method name="multiply">
   <arg type="x" direction="in"/>
   <arg type="d" direction="in"/>
@@ -294,7 +314,7 @@ R"delimiter(<!DOCTYPE node PUBLIC "-//freedesktop//DTD D-BUS Object Introspectio
   <annotation name="org.freedesktop.DBus.Deprecated" value="true"/>
  </signal>
  <property name="action" type="u" access="readwrite">
-   <annotation name="org.freedesktop.DBus.Property.EmitsChangedSignal" value="false"/>
+   <annotation name="org.freedesktop.DBus.Property.EmitsChangedSignal" value="invalidates"/>
  </property>
  <property name="blocking" type="b" access="readwrite">
  </property>
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file defs.h
 *
@@ -40,6 +41,11 @@ constexpr const int32_t INT64_VALUE{-1024};
 const std::string STRING_VALUE{"sdbus-c++-testing"};
 const sdbus::Signature SIGNATURE_VALUE{"a{is}"};
 const sdbus::ObjectPath OBJECT_PATH_VALUE{"/"};
+const int UNIX_FD_VALUE = 0;
+
+const std::string DEFAULT_STATE_VALUE{"default-state-value"};
+const uint32_t DEFAULT_ACTION_VALUE{999};
+const bool DEFAULT_BLOCKING_VALUE{true};

 constexpr const double DOUBLE_VALUE{3.24L};

@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file proxy-glue.h
 *
@@ -45,6 +46,8 @@ protected:
                { this->onSignalWithoutRegistration(s); });
    }

+    ~testing_proxy() = default;
+
    virtual void onSimpleSignal() = 0;
    virtual void onSignalWithMap(const std::map<int32_t, std::string>& map) = 0;
    virtual void onSignalWithVariant(const sdbus::Variant& v) = 0;
@@ -175,6 +178,13 @@ public:
        return result;
    }

+    sdbus::UnixFd getUnixFd()
+    {
+        sdbus::UnixFd result;
+        object_.callMethod("getUnixFd").onInterface(INTERFACE_NAME).storeResultsTo(result);
+        return result;
+    }
+
    ComplexType getComplex()
    {
        ComplexType result;
@@ -211,6 +221,11 @@ public:
        return object_.getProperty("state").onInterface(INTERFACE_NAME);
    }

+    void state(const std::string& value)
+    {
+        object_.setProperty("state").onInterface(INTERFACE_NAME).toValue(value);
+    }
+
    uint32_t action()
    {
        return object_.getProperty("action").onInterface(INTERFACE_NAME);
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file sdbus-c++-integration-tests.cpp
 *
@@ -0,0 +1,48 @@
+
+/*
+ * This file was automatically generated by sdbus-c++-xml2cpp; DO NOT EDIT!
+ */
+
+#ifndef __sdbuscpp__perftests_adaptor_h__adaptor__H__
+#define __sdbuscpp__perftests_adaptor_h__adaptor__H__
+
+#include <sdbus-c++/sdbus-c++.h>
+#include <string>
+#include <tuple>
+
+namespace org {
+namespace sdbuscpp {
+
+class perftests_adaptor
+{
+public:
+    static constexpr const char* INTERFACE_NAME = "org.sdbuscpp.perftests";
+
+protected:
+    perftests_adaptor(sdbus::IObject& object)
+        : object_(object)
+    {
+        object_.registerMethod("sendDataSignals").onInterface(INTERFACE_NAME).implementedAs([this](const uint32_t& numberOfSignals, const uint32_t& signalMsgSize){ return this->sendDataSignals(numberOfSignals, signalMsgSize); });
+        object_.registerMethod("concatenateTwoStrings").onInterface(INTERFACE_NAME).implementedAs([this](const std::string& string1, const std::string& string2){ return this->concatenateTwoStrings(string1, string2); });
+        object_.registerSignal("dataSignal").onInterface(INTERFACE_NAME).withParameters<std::string>();
+    }
+
+    ~perftests_adaptor() = default;
+
+public:
+    void emitDataSignal(const std::string& data)
+    {
+        object_.emitSignal("dataSignal").onInterface(INTERFACE_NAME).withArguments(data);
+    }
+
+private:
+    virtual void sendDataSignals(const uint32_t& numberOfSignals, const uint32_t& signalMsgSize) = 0;
+    virtual std::string concatenateTwoStrings(const std::string& string1, const std::string& string2) = 0;
+
+private:
+    sdbus::IObject& object_;
+};
+
+}} // namespaces
+
+#endif
@@ -3,8 +3,8 @@
 * This file was automatically generated by sdbus-c++-xml2cpp; DO NOT EDIT!
 */

-#ifndef __sdbuscpp__perftest_proxy_h__proxy__H__
-#define __sdbuscpp__perftest_proxy_h__proxy__H__
+#ifndef __sdbuscpp__perftests_proxy_h__proxy__H__
+#define __sdbuscpp__perftests_proxy_h__proxy__H__

 #include <sdbus-c++/sdbus-c++.h>
 #include <string>
@@ -16,27 +16,29 @@ namespace sdbuscpp {
 class perftests_proxy
 {
 public:
-    static constexpr const char* interfaceName = "org.sdbuscpp.perftests";
+    static constexpr const char* INTERFACE_NAME = "org.sdbuscpp.perftests";

 protected:
    perftests_proxy(sdbus::IProxy& proxy)
        : proxy_(proxy)
    {
-        proxy_.uponSignal("dataSignal").onInterface(interfaceName).call([this](const std::string& data){ this->onDataSignal(data); });
+        proxy_.uponSignal("dataSignal").onInterface(INTERFACE_NAME).call([this](const std::string& data){ this->onDataSignal(data); });
    }

+    ~perftests_proxy() = default;
+
    virtual void onDataSignal(const std::string& data) = 0;

 public:
    void sendDataSignals(const uint32_t& numberOfSignals, const uint32_t& signalMsgSize)
    {
-        proxy_.callMethod("sendDataSignals").onInterface(interfaceName).withArguments(numberOfSignals, signalMsgSize);
+        proxy_.callMethod("sendDataSignals").onInterface(INTERFACE_NAME).withArguments(numberOfSignals, signalMsgSize);
    }

    std::string concatenateTwoStrings(const std::string& string1, const std::string& string2)
    {
        std::string result;
-        proxy_.callMethod("concatenateTwoStrings").onInterface(interfaceName).withArguments(string1, string2).storeResultsTo(result);
+        proxy_.callMethod("concatenateTwoStrings").onInterface(INTERFACE_NAME).withArguments(string1, string2).storeResultsTo(result);
        return result;
    }

@@ -59,7 +59,7 @@ protected:
        for (uint32_t i = 0; i < numberOfSignals; ++i)
        {
            // Emit signal
-            dataSignal(data);
+            emitDataSignal(data);
        }
        auto stop_time = std::chrono::steady_clock::now();
        std::cout << "Server sent " << numberOfSignals << " signals in: " << std::chrono::duration_cast<std::chrono::milliseconds>(stop_time - start_time).count() << " ms" << std::endl;
@@ -18,15 +18,17 @@ namespace celsius {
 class thermometer_adaptor
 {
 public:
-    static constexpr const char* interfaceName = "org.sdbuscpp.stresstests.celsius.thermometer";
+    static constexpr const char* INTERFACE_NAME = "org.sdbuscpp.stresstests.celsius.thermometer";

 protected:
    thermometer_adaptor(sdbus::IObject& object)
        : object_(object)
    {
-        object_.registerMethod("getCurrentTemperature").onInterface(interfaceName).implementedAs([this](){ return this->getCurrentTemperature(); });
+        object_.registerMethod("getCurrentTemperature").onInterface(INTERFACE_NAME).implementedAs([this](){ return this->getCurrentTemperature(); });
    }

+    ~thermometer_adaptor() = default;
+
 private:
    virtual uint32_t getCurrentTemperature() = 0;

@@ -18,7 +18,7 @@ namespace celsius {
 class thermometer_proxy
 {
 public:
-    static constexpr const char* interfaceName = "org.sdbuscpp.stresstests.celsius.thermometer";
+    static constexpr const char* INTERFACE_NAME = "org.sdbuscpp.stresstests.celsius.thermometer";

 protected:
    thermometer_proxy(sdbus::IProxy& proxy)
@@ -26,11 +26,13 @@ protected:
    {
    }

+    ~thermometer_proxy() = default;
+
 public:
    uint32_t getCurrentTemperature()
    {
        uint32_t result;
-        proxy_.callMethod("getCurrentTemperature").onInterface(interfaceName).storeResultsTo(result);
+        proxy_.callMethod("getCurrentTemperature").onInterface(INTERFACE_NAME).storeResultsTo(result);
        return result;
    }

@@ -17,20 +17,22 @@ namespace stresstests {
 class concatenator_adaptor
 {
 public:
-    static constexpr const char* interfaceName = "org.sdbuscpp.stresstests.concatenator";
+    static constexpr const char* INTERFACE_NAME = "org.sdbuscpp.stresstests.concatenator";

 protected:
    concatenator_adaptor(sdbus::IObject& object)
        : object_(object)
    {
-        object_.registerMethod("concatenate").onInterface(interfaceName).implementedAs([this](sdbus::Result<std::string>&& result, std::map<std::string, sdbus::Variant> params){ this->concatenate(std::move(result), std::move(params)); });
-        object_.registerSignal("concatenatedSignal").onInterface(interfaceName).withParameters<std::string>();
+        object_.registerMethod("concatenate").onInterface(INTERFACE_NAME).implementedAs([this](sdbus::Result<std::string>&& result, std::map<std::string, sdbus::Variant> params){ this->concatenate(std::move(result), std::move(params)); });
+        object_.registerSignal("concatenatedSignal").onInterface(INTERFACE_NAME).withParameters<std::string>();
    }

+    ~concatenator_adaptor() = default;
+
 public:
-    void concatenatedSignal(const std::string& concatenatedString)
+    void emitConcatenatedSignal(const std::string& concatenatedString)
    {
-        object_.emitSignal("concatenatedSignal").onInterface(interfaceName).withArguments(concatenatedString);
+        object_.emitSignal("concatenatedSignal").onInterface(INTERFACE_NAME).withArguments(concatenatedString);
    }

 private:
@@ -17,15 +17,17 @@ namespace stresstests {
 class concatenator_proxy
 {
 public:
-    static constexpr const char* interfaceName = "org.sdbuscpp.stresstests.concatenator";
+    static constexpr const char* INTERFACE_NAME = "org.sdbuscpp.stresstests.concatenator";

 protected:
    concatenator_proxy(sdbus::IProxy& proxy)
        : proxy_(proxy)
    {
-        proxy_.uponSignal("concatenatedSignal").onInterface(interfaceName).call([this](const std::string& concatenatedString){ this->onConcatenatedSignal(concatenatedString); });
+        proxy_.uponSignal("concatenatedSignal").onInterface(INTERFACE_NAME).call([this](const std::string& concatenatedString){ this->onConcatenatedSignal(concatenatedString); });
    }

+    ~concatenator_proxy() = default;
+
    virtual void onConcatenatedSignal(const std::string& concatenatedString) = 0;

    virtual void onConcatenateReply(const std::string& result, const sdbus::Error* error) = 0;
@@ -33,7 +35,7 @@ protected:
 public:
    void concatenate(const std::map<std::string, sdbus::Variant>& params)
    {
-        proxy_.callMethodAsync("concatenate").onInterface(interfaceName).withArguments(params).uponReplyInvoke([this](const sdbus::Error* error, const std::string& result){ this->onConcatenateReply(result, error); });
+        proxy_.callMethodAsync("concatenate").onInterface(INTERFACE_NAME).withArguments(params).uponReplyInvoke([this](const sdbus::Error* error, const std::string& result){ this->onConcatenateReply(result, error); });
    }

 private:
@@ -18,15 +18,17 @@ namespace fahrenheit {
 class thermometer_adaptor
 {
 public:
-    static constexpr const char* interfaceName = "org.sdbuscpp.stresstests.fahrenheit.thermometer";
+    static constexpr const char* INTERFACE_NAME = "org.sdbuscpp.stresstests.fahrenheit.thermometer";

 protected:
    thermometer_adaptor(sdbus::IObject& object)
        : object_(object)
    {
-        object_.registerMethod("getCurrentTemperature").onInterface(interfaceName).implementedAs([this](){ return this->getCurrentTemperature(); });
+        object_.registerMethod("getCurrentTemperature").onInterface(INTERFACE_NAME).implementedAs([this](){ return this->getCurrentTemperature(); });
    }

+    ~thermometer_adaptor() = default;
+
 private:
    virtual uint32_t getCurrentTemperature() = 0;

@@ -45,16 +47,18 @@ namespace thermometer {
 class factory_adaptor
 {
 public:
-    static constexpr const char* interfaceName = "org.sdbuscpp.stresstests.fahrenheit.thermometer.factory";
+    static constexpr const char* INTERFACE_NAME = "org.sdbuscpp.stresstests.fahrenheit.thermometer.factory";

 protected:
    factory_adaptor(sdbus::IObject& object)
        : object_(object)
    {
-        object_.registerMethod("createDelegateObject").onInterface(interfaceName).implementedAs([this](sdbus::Result<sdbus::ObjectPath>&& result){ this->createDelegateObject(std::move(result)); });
-        object_.registerMethod("destroyDelegateObject").onInterface(interfaceName).implementedAs([this](sdbus::Result<>&& result, sdbus::ObjectPath delegate){ this->destroyDelegateObject(std::move(result), std::move(delegate)); }).withNoReply();
+        object_.registerMethod("createDelegateObject").onInterface(INTERFACE_NAME).implementedAs([this](sdbus::Result<sdbus::ObjectPath>&& result){ this->createDelegateObject(std::move(result)); });
+        object_.registerMethod("destroyDelegateObject").onInterface(INTERFACE_NAME).implementedAs([this](sdbus::Result<>&& result, sdbus::ObjectPath delegate){ this->destroyDelegateObject(std::move(result), std::move(delegate)); }).withNoReply();
    }

+    ~factory_adaptor() = default;
+
 private:
    virtual void createDelegateObject(sdbus::Result<sdbus::ObjectPath>&& result) = 0;
    virtual void destroyDelegateObject(sdbus::Result<>&& result, sdbus::ObjectPath delegate) = 0;
@@ -18,7 +18,7 @@ namespace fahrenheit {
 class thermometer_proxy
 {
 public:
-    static constexpr const char* interfaceName = "org.sdbuscpp.stresstests.fahrenheit.thermometer";
+    static constexpr const char* INTERFACE_NAME = "org.sdbuscpp.stresstests.fahrenheit.thermometer";

 protected:
    thermometer_proxy(sdbus::IProxy& proxy)
@@ -26,11 +26,13 @@ protected:
    {
    }

+    ~thermometer_proxy() = default;
+
 public:
    uint32_t getCurrentTemperature()
    {
        uint32_t result;
-        proxy_.callMethod("getCurrentTemperature").onInterface(interfaceName).storeResultsTo(result);
+        proxy_.callMethod("getCurrentTemperature").onInterface(INTERFACE_NAME).storeResultsTo(result);
        return result;
    }

@@ -49,7 +51,7 @@ namespace thermometer {
 class factory_proxy
 {
 public:
-    static constexpr const char* interfaceName = "org.sdbuscpp.stresstests.fahrenheit.thermometer.factory";
+    static constexpr const char* INTERFACE_NAME = "org.sdbuscpp.stresstests.fahrenheit.thermometer.factory";

 protected:
    factory_proxy(sdbus::IProxy& proxy)
@@ -57,17 +59,19 @@ protected:
    {
    }

+    ~factory_proxy() = default;
+
 public:
    sdbus::ObjectPath createDelegateObject()
    {
        sdbus::ObjectPath result;
-        proxy_.callMethod("createDelegateObject").onInterface(interfaceName).storeResultsTo(result);
+        proxy_.callMethod("createDelegateObject").onInterface(INTERFACE_NAME).storeResultsTo(result);
        return result;
    }

    void destroyDelegateObject(const sdbus::ObjectPath& delegate)
    {
-        proxy_.callMethod("destroyDelegateObject").onInterface(interfaceName).withArguments(delegate).dontExpectReply();
+        proxy_.callMethod("destroyDelegateObject").onInterface(INTERFACE_NAME).withArguments(delegate).dontExpectReply();
    }

 private:
@@ -255,7 +255,7 @@ public:

                    request.result.returnResults(resultString);

-                    concatenatedSignal(resultString);
+                    emitConcatenatedSignal(resultString);
                }
            });

@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file Connection_test.cpp
 * @author Ardazishvili Roman (ardazishvili.roman@yandex.ru)
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file Message_test.cpp
 *
@@ -30,12 +31,13 @@
 #include <cstdint>

 using ::testing::Eq;
+using ::testing::Gt;
 using ::testing::DoubleEq;
 using namespace std::string_literals;

 namespace
 {
-    std::string deserializeString(sdbus::Message& msg)
+    std::string deserializeString(sdbus::PlainMessage& msg)
    {
        std::string str;
        msg >> str;
@@ -49,29 +51,29 @@ namespace

 TEST(AMessage, CanBeDefaultConstructed)
 {
-    ASSERT_NO_THROW(sdbus::Message());
+    ASSERT_NO_THROW(sdbus::PlainMessage());
 }

 TEST(AMessage, IsInvalidAfterDefaultConstructed)
 {
-    sdbus::Message msg;
+    sdbus::PlainMessage msg;

    ASSERT_FALSE(msg.isValid());
 }

 TEST(AMessage, IsValidWhenConstructedAsRealMessage)
 {
-    sdbus::Message msg{sdbus::createPlainMessage()};
+    auto msg = sdbus::createPlainMessage();
    ASSERT_TRUE(msg.isValid());
 }

 TEST(AMessage, CreatesShallowCopyWhenCopyConstructed)
 {
-    sdbus::Message msg{sdbus::createPlainMessage()};
+    auto msg = sdbus::createPlainMessage();
    msg << "I am a string"s;
    msg.seal();

-    sdbus::Message msgCopy = msg;
+    sdbus::PlainMessage msgCopy = msg;

    std::string str;
    msgCopy >> str;
@@ -82,11 +84,11 @@ TEST(AMessage, CreatesShallowCopyWhenCopyConstructed)

 TEST(AMessage, CreatesDeepCopyWhenEplicitlyCopied)
 {
-    sdbus::Message msg{sdbus::createPlainMessage()};
+    auto msg = sdbus::createPlainMessage();
    msg << "I am a string"s;
    msg.seal();

-    sdbus::Message msgCopy{sdbus::createPlainMessage()};
+    auto msgCopy = sdbus::createPlainMessage();
    msg.copyTo(msgCopy, true);
    msgCopy.seal(); // Seal to be able to read from it subsequently
    msg.rewind(true); // Rewind to the beginning after copying
@@ -97,14 +99,14 @@ TEST(AMessage, CreatesDeepCopyWhenEplicitlyCopied)

 TEST(AMessage, IsEmptyWhenContainsNoValue)
 {
-    sdbus::Message msg{sdbus::createPlainMessage()};
+    auto msg = sdbus::createPlainMessage();

    ASSERT_TRUE(msg.isEmpty());
 }

 TEST(AMessage, IsNotEmptyWhenContainsAValue)
 {
-    sdbus::Message msg{sdbus::createPlainMessage()};
+    auto msg = sdbus::createPlainMessage();
    msg << "I am a string"s;

    ASSERT_FALSE(msg.isEmpty());
@@ -112,7 +114,7 @@ TEST(AMessage, IsNotEmptyWhenContainsAValue)

 TEST(AMessage, CanCarryASimpleInteger)
 {
-    sdbus::Message msg{sdbus::createPlainMessage()};
+    auto msg = sdbus::createPlainMessage();

    int dataWritten = 5;

@@ -125,9 +127,24 @@ TEST(AMessage, CanCarryASimpleInteger)
    ASSERT_THAT(dataRead, Eq(dataWritten));
 }

+TEST(AMessage, CanCarryAUnixFd)
+{
+    auto msg = sdbus::createPlainMessage();
+
+    sdbus::UnixFd dataWritten{0};
+    msg << dataWritten;
+
+    msg.seal();
+
+    sdbus::UnixFd dataRead;
+    msg >> dataRead;
+
+    ASSERT_THAT(dataRead.get(), Gt(dataWritten.get()));
+}
+
 TEST(AMessage, CanCarryAVariant)
 {
-    sdbus::Message msg{sdbus::createPlainMessage()};
+    auto msg = sdbus::createPlainMessage();

    auto dataWritten = sdbus::Variant((double)3.14);

@@ -142,7 +159,7 @@ TEST(AMessage, CanCarryAVariant)

 TEST(AMessage, CanCarryACollectionOfEmbeddedVariants)
 {
-    sdbus::Message msg{sdbus::createPlainMessage()};
+    auto msg = sdbus::createPlainMessage();

    auto value = std::vector<sdbus::Variant>{"hello"s, (double)3.14};
    auto dataWritten = sdbus::Variant{value};
@@ -159,7 +176,7 @@ TEST(AMessage, CanCarryACollectionOfEmbeddedVariants)

 TEST(AMessage, CanCarryAnArray)
 {
-    sdbus::Message msg{sdbus::createPlainMessage()};
+    auto msg = sdbus::createPlainMessage();

    std::vector<int64_t> dataWritten{3545342, 43643532, 324325};

@@ -174,7 +191,7 @@ TEST(AMessage, CanCarryAnArray)

 TEST(AMessage, CanCarryADictionary)
 {
-    sdbus::Message msg{sdbus::createPlainMessage()};
+    auto msg = sdbus::createPlainMessage();

    std::map<int, std::string> dataWritten{{1, "one"}, {2, "two"}};

@@ -189,7 +206,7 @@ TEST(AMessage, CanCarryADictionary)

 TEST(AMessage, CanCarryAComplexType)
 {
-    sdbus::Message msg{sdbus::createPlainMessage()};
+    auto msg = sdbus::createPlainMessage();

    using ComplexType = std::map<
                            uint64_t,
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file TypeTraits_test.cpp
 *
@@ -72,6 +73,7 @@ namespace
    TYPE(sdbus::ObjectPath)HAS_DBUS_TYPE_SIGNATURE("o")
    TYPE(sdbus::Signature)HAS_DBUS_TYPE_SIGNATURE("g")
    TYPE(sdbus::Variant)HAS_DBUS_TYPE_SIGNATURE("v")
+    TYPE(sdbus::UnixFd)HAS_DBUS_TYPE_SIGNATURE("h")
    TYPE(sdbus::Struct<bool>)HAS_DBUS_TYPE_SIGNATURE("(b)")
    TYPE(sdbus::Struct<uint16_t, double, std::string, sdbus::Variant>)HAS_DBUS_TYPE_SIGNATURE("(qdsv)")
    TYPE(std::vector<int16_t>)HAS_DBUS_TYPE_SIGNATURE("an")
@@ -91,10 +93,11 @@ namespace
                                    >
                                >,
                                sdbus::Signature,
+                                sdbus::UnixFd,
                                const char*
                            >
                        >;
-    TYPE(ComplexType)HAS_DBUS_TYPE_SIGNATURE("a{t(a{ya(obva{is})}gs)}")
+    TYPE(ComplexType)HAS_DBUS_TYPE_SIGNATURE("a{t(a{ya(obva{is})}ghs)}")

    typedef ::testing::Types< bool
                            , uint8_t
@@ -110,6 +113,7 @@ namespace
                            , sdbus::ObjectPath
                            , sdbus::Signature
                            , sdbus::Variant
+                            , sdbus::UnixFd
                            , sdbus::Struct<bool>
                            , sdbus::Struct<uint16_t, double, std::string, sdbus::Variant>
                            , std::vector<int16_t>
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file Types_test.cpp
 *
@@ -28,8 +29,10 @@
 #include <gtest/gtest.h>
 #include <gmock/gmock.h>
 #include <cstdint>
+#include <sys/eventfd.h>

 using ::testing::Eq;
+using ::testing::Gt;
 using namespace std::string_literals;

 namespace
@@ -152,7 +155,7 @@ TEST(ANonEmptyVariant, SerializesSuccessfullyToAMessage)
 {
    sdbus::Variant variant("a string");

-    sdbus::Message msg = sdbus::createPlainMessage();
+    auto msg = sdbus::createPlainMessage();

    ASSERT_NO_THROW(variant.serializeTo(msg));
 }
@@ -161,7 +164,7 @@ TEST(AnEmptyVariant, ThrowsWhenBeingSerializedToAMessage)
 {
    sdbus::Variant variant;

-    sdbus::Message msg = sdbus::createPlainMessage();
+    auto msg = sdbus::createPlainMessage();

    ASSERT_THROW(variant.serializeTo(msg), sdbus::Error);
 }
@@ -172,7 +175,7 @@ TEST(ANonEmptyVariant, SerializesToAndDeserializesFromAMessageSuccessfully)
    ComplexType value{ {ANY_UINT64, ComplexType::mapped_type{sdbus::make_struct("hello", ANY_DOUBLE), sdbus::make_struct("world", ANY_DOUBLE)}} };
    sdbus::Variant variant(value);

-    sdbus::Message msg = sdbus::createPlainMessage();
+    auto msg = sdbus::createPlainMessage();
    variant.serializeTo(msg);
    msg.seal();
    sdbus::Variant variant2;
@@ -189,7 +192,7 @@ TEST(CopiesOfVariant, SerializeToAndDeserializeFromMessageSuccessfully)
    auto variantCopy1{variant};
    auto variantCopy2 = variant;

-    sdbus::Message msg = sdbus::createPlainMessage();
+    auto msg = sdbus::createPlainMessage();
    variant.serializeTo(msg);
    variantCopy1.serializeTo(msg);
    variantCopy2.serializeTo(msg);
@@ -240,3 +243,104 @@ TEST(ASignature, CanBeConstructedFromStdString)

    ASSERT_THAT(sdbus::Signature{aSignature}, Eq(aSignature));
 }
+
+TEST(AUnixFd, DuplicatesAndOwnsFdUponStandardConstruction)
+{
+    auto fd = ::eventfd(0, EFD_SEMAPHORE | EFD_NONBLOCK);
+
+    EXPECT_THAT(sdbus::UnixFd{fd}.get(), Gt(fd));
+    EXPECT_THAT(::close(fd), Eq(0));
+}
+
+TEST(AUnixFd, AdoptsAndOwnsFdAsIsUponAdoptionConstruction)
+{
+    auto fd = ::eventfd(0, EFD_SEMAPHORE | EFD_NONBLOCK);
+
+    EXPECT_THAT(sdbus::UnixFd(fd, sdbus::adopt_fd).get(), Eq(fd));
+    EXPECT_THAT(::close(fd), Eq(-1));
+}
+
+TEST(AUnixFd, DuplicatesFdUponCopyConstruction)
+{
+    sdbus::UnixFd unixFd(::eventfd(0, EFD_SEMAPHORE | EFD_NONBLOCK));
+
+    sdbus::UnixFd unixFdCopy{unixFd};
+
+    EXPECT_THAT(unixFdCopy.get(), Gt(unixFd.get()));
+}
+
+TEST(AUnixFd, TakesOverFdUponMoveConstruction)
+{
+    auto fd = ::eventfd(0, EFD_SEMAPHORE | EFD_NONBLOCK);
+    sdbus::UnixFd unixFd(fd, sdbus::adopt_fd);
+
+    sdbus::UnixFd unixFdNew{std::move(unixFd)};
+
+    EXPECT_FALSE(unixFd.isValid());
+    EXPECT_THAT(unixFdNew.get(), Eq(fd));
+}
+
+TEST(AUnixFd, ClosesFdProperlyUponDestruction)
+{
+    int fd, fdCopy;
+    {
+        fd = ::eventfd(0, EFD_SEMAPHORE | EFD_NONBLOCK);
+        sdbus::UnixFd unixFd(fd, sdbus::adopt_fd);
+        auto unixFdNew = std::move(unixFd);
+        auto unixFdCopy = unixFdNew;
+        fdCopy = unixFdCopy.get();
+    }
+
+    EXPECT_THAT(::close(fd), Eq(-1));
+    EXPECT_THAT(::close(fdCopy), Eq(-1));
+}
+
+TEST(AUnixFd, DoesNotCloseReleasedFd)
+{
+    auto fd = ::eventfd(0, EFD_SEMAPHORE | EFD_NONBLOCK);
+    int fdReleased;
+    {
+        sdbus::UnixFd unixFd(fd, sdbus::adopt_fd);
+        fdReleased = unixFd.release();
+        EXPECT_FALSE(unixFd.isValid());
+    }
+
+    EXPECT_THAT(fd, Eq(fdReleased));
+    EXPECT_THAT(::close(fd), Eq(0));
+}
+
+TEST(AUnixFd, ClosesFdOnReset)
+{
+    auto fd = ::eventfd(0, EFD_SEMAPHORE | EFD_NONBLOCK);
+    sdbus::UnixFd unixFd(fd, sdbus::adopt_fd);
+
+    unixFd.reset();
+
+    EXPECT_FALSE(unixFd.isValid());
+    EXPECT_THAT(::close(fd), Eq(-1));
+}
+
+TEST(AUnixFd, DuplicatesNewFdAndClosesOriginalFdOnReset)
+{
+    auto fd = ::eventfd(0, EFD_SEMAPHORE | EFD_NONBLOCK);
+    sdbus::UnixFd unixFd(fd, sdbus::adopt_fd);
+    auto newFd = ::eventfd(0, EFD_SEMAPHORE | EFD_NONBLOCK);
+
+    unixFd.reset(newFd);
+
+    EXPECT_THAT(unixFd.get(), Gt(newFd));
+    EXPECT_THAT(::close(fd), Eq(-1));
+    EXPECT_THAT(::close(newFd), Eq(0));
+}
+
+TEST(AUnixFd, TakesOverNewFdAndClosesOriginalFdOnAdoptingReset)
+{
+    auto fd = ::eventfd(0, EFD_SEMAPHORE | EFD_NONBLOCK);
+    sdbus::UnixFd unixFd(fd, sdbus::adopt_fd);
+    auto newFd = ::eventfd(0, EFD_SEMAPHORE | EFD_NONBLOCK);
+
+    unixFd.reset(newFd, sdbus::adopt_fd);
+
+    EXPECT_THAT(unixFd.get(), Eq(newFd));
+    EXPECT_THAT(::close(fd), Eq(-1));
+}
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file SdBusMock.h
 * @author Ardazishvili Roman (ardazishvili.roman@yandex.ru)
@@ -46,11 +47,18 @@ public:
    MOCK_METHOD2(sd_bus_message_new_method_return, int(sd_bus_message *call, sd_bus_message **m));
    MOCK_METHOD3(sd_bus_message_new_method_error, int(sd_bus_message *call, sd_bus_message **m, const sd_bus_error *e));

+    MOCK_METHOD4(sd_bus_emit_properties_changed_strv, int(sd_bus *bus, const char *path, const char *interface, char **names));
+    MOCK_METHOD2(sd_bus_emit_object_added, int(sd_bus *bus, const char *path));
+    MOCK_METHOD2(sd_bus_emit_object_removed, int(sd_bus *bus, const char *path));
+    MOCK_METHOD3(sd_bus_emit_interfaces_added_strv, int(sd_bus *bus, const char *path, char **interfaces));
+    MOCK_METHOD3(sd_bus_emit_interfaces_removed_strv, int(sd_bus *bus, const char *path, char **interfaces));
+
    MOCK_METHOD1(sd_bus_open_user, int(sd_bus **ret));
    MOCK_METHOD1(sd_bus_open_system, int(sd_bus **ret));
    MOCK_METHOD3(sd_bus_request_name, int(sd_bus *bus, const char *name, uint64_t flags));
    MOCK_METHOD2(sd_bus_release_name, int(sd_bus *bus, const char *name));
    MOCK_METHOD6(sd_bus_add_object_vtable, int(sd_bus *bus, sd_bus_slot **slot, const char *path, const char *interface, const sd_bus_vtable *vtable, void *userdata));
+    MOCK_METHOD3(sd_bus_add_object_manager, int(sd_bus *bus, sd_bus_slot **slot, const char *path));
    MOCK_METHOD5(sd_bus_add_match, int(sd_bus *bus, sd_bus_slot **slot, const char *match, sd_bus_message_handler_t callback, void *userdata));
    MOCK_METHOD1(sd_bus_slot_unref, sd_bus_slot*(sd_bus_slot *slot));

@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file sdbus-c++-unit-tests.cpp
 *
@@ -4,7 +4,7 @@

 cmake_minimum_required(VERSION 3.5)

-project(sdbus-c++-xml2cpp)
+project(sdbus-c++-tools)

 include(GNUInstallDirs)

@@ -19,17 +19,17 @@ find_package(EXPAT REQUIRED)
 #-------------------------------

 set(SDBUSCPP_XML2CPP_SRCS
-    xml2cpp.cpp
-    xml.h
-    xml.cpp
-    generator_utils.h
-    generator_utils.cpp
-    BaseGenerator.h
-    BaseGenerator.cpp
-    AdaptorGenerator.h
-    AdaptorGenerator.cpp
-    ProxyGenerator.h
-    ProxyGenerator.cpp)
+    xml2cpp-codegen/xml2cpp.cpp
+    xml2cpp-codegen/xml.h
+    xml2cpp-codegen/xml.cpp
+    xml2cpp-codegen/generator_utils.h
+    xml2cpp-codegen/generator_utils.cpp
+    xml2cpp-codegen/BaseGenerator.h
+    xml2cpp-codegen/BaseGenerator.cpp
+    xml2cpp-codegen/AdaptorGenerator.h
+    xml2cpp-codegen/AdaptorGenerator.cpp
+    xml2cpp-codegen/ProxyGenerator.h
+    xml2cpp-codegen/ProxyGenerator.cpp)

 #-------------------------------
 # GENERAL COMPILER CONFIGURATION
@@ -41,12 +41,11 @@ set(CMAKE_CXX_STANDARD 14)
 # EXECUTABLE BUILD INFORMATION
 #----------------------------------

-add_executable(${PROJECT_NAME} ${SDBUSCPP_XML2CPP_SRCS})
-
-target_link_libraries (${PROJECT_NAME} ${EXPAT_LIBRARIES})
+add_executable(sdbus-c++-xml2cpp ${SDBUSCPP_XML2CPP_SRCS})
+target_link_libraries (sdbus-c++-xml2cpp ${EXPAT_LIBRARIES})

 #----------------------------------
 # INSTALLATION
 #----------------------------------

-install(TARGETS ${PROJECT_NAME} EXPORT ${PROJECT_NAME} DESTINATION ${CMAKE_INSTALL_BINDIR})
+install(TARGETS sdbus-c++-xml2cpp EXPORT sdbus-c++-xml2cpp DESTINATION ${CMAKE_INSTALL_BINDIR})
@@ -0,0 +1,504 @@
+                  GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 2.1, February 1999
+
+ Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+ 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+[This is the first released version of the Lesser GPL.  It also counts
+ as the successor of the GNU Library Public License, version 2, hence
+ the version number 2.1.]
+
+                            Preamble
+
+  The licenses for most software are designed to take away your
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+
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+specially designated software packages--typically libraries--of the
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+can use it too, but we suggest you first think carefully about whether
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+
+  When we speak of free software, we are referring to freedom of use,
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+  12. If the distribution and/or use of the Library is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Library under this License may add
+an explicit geographical distribution limitation excluding those countries,
+so that distribution is permitted only in or among countries not thus
+excluded.  In such case, this License incorporates the limitation as if
+written in the body of this License.
+
+  13. The Free Software Foundation may publish revised and/or new
+versions of the Lesser General Public License from time to time.
+Such new versions will be similar in spirit to the present version,
+but may differ in detail to address new problems or concerns.
+
+Each version is given a distinguishing version number.  If the Library
+specifies a version number of this License which applies to it and
+"any later version", you have the option of following the terms and
+conditions either of that version or of any later version published by
+the Free Software Foundation.  If the Library does not specify a
+license version number, you may choose any version ever published by
+the Free Software Foundation.
+
+  14. If you wish to incorporate parts of the Library into other free
+programs whose distribution conditions are incompatible with these,
+write to the author to ask for permission.  For software which is
+copyrighted by the Free Software Foundation, write to the Free
+Software Foundation; we sometimes make exceptions for this.  Our
+decision will be guided by the two goals of preserving the free status
+of all derivatives of our free software and of promoting the sharing
+and reuse of software generally.
+
+                            NO WARRANTY
+
+  15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO
+WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
+EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
+OTHER PARTIES PROVIDE THE LIBRARY "AS IS" WITHOUT WARRANTY OF ANY
+KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE
+LIBRARY IS WITH YOU.  SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
+THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
+WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY
+AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU
+FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
+CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
+LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
+RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
+FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
+SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+DAMAGES.
+
+                     END OF TERMS AND CONDITIONS
+
+           How to Apply These Terms to Your New Libraries
+
+  If you develop a new library, and you want it to be of the greatest
+possible use to the public, we recommend making it free software that
+everyone can redistribute and change.  You can do so by permitting
+redistribution under these terms (or, alternatively, under the terms of the
+ordinary General Public License).
+
+  To apply these terms, attach the following notices to the library.  It is
+safest to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least the
+"copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the library's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301
+    USA
+
+Also add information on how to contact you by electronic and paper mail.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the library, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the
+  library `Frob' (a library for tweaking knobs) written by James Random
+  Hacker.
+
+  <signature of Ty Coon>, 1 April 1990
+  Ty Coon, President of Vice
+
+That's all there is to it!
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file AdaptorGenerator.cpp
 *
@@ -33,6 +34,7 @@
 #include <cstdlib>
 #include <algorithm>
 #include <iterator>
+#include <cctype>

 using std::endl;

@@ -80,7 +82,7 @@ std::string AdaptorGenerator::processInterface(Node& interface) const
    body << "class " << className << endl
            << "{" << endl
            << "public:" << endl
-            << tab << "static constexpr const char* interfaceName = \"" << ifaceName << "\";" << endl << endl
+            << tab << "static constexpr const char* INTERFACE_NAME = \"" << ifaceName << "\";" << endl << endl
            << "protected:" << endl
            << tab << className << "(sdbus::IObject& object)" << endl
            << tab << tab << ": object_(object)" << endl;
@@ -109,7 +111,7 @@ std::string AdaptorGenerator::processInterface(Node& interface) const
    if(!annotationRegistration.empty())
    {
        std::stringstream str;
-        str << tab << tab << "object_.setInterfaceFlags(interfaceName)" << annotationRegistration << ";" << endl;
+        str << tab << tab << "object_.setInterfaceFlags(INTERFACE_NAME)" << annotationRegistration << ";" << endl;
        annotationRegistration = str.str();
    }

@@ -129,6 +131,8 @@ std::string AdaptorGenerator::processInterface(Node& interface) const
                       << propertyRegistration
         << tab << "}" << endl << endl;

+    body << tab << "~" << className << "() = default;" << endl << endl;
+
    if (!signalMethods.empty())
    {
        body << "public:" << endl << signalMethods;
@@ -202,12 +206,12 @@ std::tuple<std::string, std::string> AdaptorGenerator::processMethods(const Node

        std::string argStr, argTypeStr;
        std::tie(argStr, argTypeStr, std::ignore) = argsToNamesAndTypes(inArgs, async);
-        
+
        using namespace std::string_literals;

        registrationSS << tab << tab << "object_.registerMethod(\""
                << methodName << "\")"
-                << ".onInterface(interfaceName)"
+                << ".onInterface(INTERFACE_NAME)"
                << ".implementedAs("
                << "[this]("
                << (async ? "sdbus::Result<" + outArgsToType(outArgs, true) + ">&& result" + (argTypeStr.empty() ? "" : ", ") : "")
@@ -260,7 +264,7 @@ std::tuple<std::string, std::string> AdaptorGenerator::processSignals(const Node

        signalRegistrationSS << tab << tab
                << "object_.registerSignal(\"" << name << "\")"
-                        ".onInterface(interfaceName)";
+                        ".onInterface(INTERFACE_NAME)";

        if (args.size() > 0)
        {
@@ -270,10 +274,13 @@ std::tuple<std::string, std::string> AdaptorGenerator::processSignals(const Node
        signalRegistrationSS << annotationRegistration;
        signalRegistrationSS << ";" << endl;

-        signalMethodSS << tab << "void " << name << "(" << argTypeStr << ")" << endl
+        auto nameWithCapFirstLetter = name;
+        nameWithCapFirstLetter[0] = std::toupper(nameWithCapFirstLetter[0]);
+
+        signalMethodSS << tab << "void emit" << nameWithCapFirstLetter << "(" << argTypeStr << ")" << endl
                << tab << "{" << endl
                << tab << tab << "object_.emitSignal(\"" << name << "\")"
-                        ".onInterface(interfaceName)";
+                        ".onInterface(INTERFACE_NAME)";

        if (!argStr.empty())
        {
@@ -322,7 +329,7 @@ std::tuple<std::string, std::string> AdaptorGenerator::processProperties(const N

        registrationSS << tab << tab << "object_.registerProperty(\""
                << propertyName << "\")"
-                << ".onInterface(interfaceName)";
+                << ".onInterface(INTERFACE_NAME)";

        if (propertyAccess == "read" || propertyAccess == "readwrite")
        {
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file AdaptorGenerator.h
 *
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file BaseGenerator.cpp
 *
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file BaseGenerator.h
 *
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file ProxyGenerator.cpp
 *
@@ -80,7 +81,7 @@ std::string ProxyGenerator::processInterface(Node& interface) const
    body << "class " << className << endl
            << "{" << endl
            << "public:" << endl
-            << tab << "static constexpr const char* interfaceName = \"" << ifaceName << "\";" << endl << endl
+            << tab << "static constexpr const char* INTERFACE_NAME = \"" << ifaceName << "\";" << endl << endl
            << "protected:" << endl
            << tab << className << "(sdbus::IProxy& proxy)" << endl
            << tab << tab << ": proxy_(proxy)" << endl;
@@ -95,6 +96,9 @@ std::string ProxyGenerator::processInterface(Node& interface) const
    body << tab << "{" << endl
            << registration
            << tab << "}" << endl << endl;
+
+    body << tab << "~" << className << "() = default;" << endl << endl;
+
    if (!declaration.empty())
        body << declaration << endl;

@@ -169,7 +173,7 @@ std::tuple<std::string, std::string> ProxyGenerator::processMethods(const Nodes&
        }

        definitionSS << tab << tab << "proxy_.callMethod" << (async ? "Async" : "") << "(\"" << name << "\")"
-                        ".onInterface(interfaceName)";
+                        ".onInterface(INTERFACE_NAME)";

        if (inArgs.size() > 0)
        {
@@ -220,7 +224,7 @@ std::tuple<std::string, std::string> ProxyGenerator::processSignals(const Nodes&

        registrationSS << tab << tab << "proxy_"
                ".uponSignal(\"" << name << "\")"
-                ".onInterface(interfaceName)"
+                ".onInterface(INTERFACE_NAME)"
                ".call([this](" << argTypeStr << ")"
                "{ this->on" << nameBigFirst << "(" << argStr << "); });" << endl;

@@ -248,7 +252,7 @@ std::string ProxyGenerator::processProperties(const Nodes& properties) const
            propertySS << tab << propertyType << " " << propertyName << "()" << endl
                    << tab << "{" << endl;
            propertySS << tab << tab << "return proxy_.getProperty(\"" << propertyName << "\")"
-                            ".onInterface(interfaceName)";
+                            ".onInterface(INTERFACE_NAME)";
            propertySS << ";" << endl << tab << "}" << endl << endl;
        }

@@ -257,7 +261,7 @@ std::string ProxyGenerator::processProperties(const Nodes& properties) const
            propertySS << tab << "void " << propertyName << "(" << propertyTypeArg << ")" << endl
                    << tab << "{" << endl;
            propertySS << tab << tab << "proxy_.setProperty(\"" << propertyName << "\")"
-                            ".onInterface(interfaceName)"
+                            ".onInterface(INTERFACE_NAME)"
                            ".toValue(" << propertyArg << ")";
            propertySS << ";" << endl << tab << "}" << endl << endl;
        }
@@ -1,5 +1,6 @@
 /**
- * (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
 *
 * @file ProxyGenerator.h
 *
@@ -44,6 +44,7 @@ const char *atomic_type_to_string(char t)
            { 'o', "sdbus::ObjectPath" },
            { 'g', "sdbus::Signature" },
            { 'v', "sdbus::Variant" },
+            { 'h', "sdbus::UnixFd" },
            { '\0', "" }
    };

--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
sangelovic	e7155c5506	Bump revision up to 0.7.3	2019-10-13 15:39:32 +02:00
sangelovic	0f7de608ac	Little code cleanup	2019-10-11 16:04:37 +02:00
sangelovic	c6d4d2710f	Skip GetMachineId test when /etc/machine-id is not available	2019-10-11 15:56:00 +02:00
hogliux	0440dcb15b	Added ability to integrate with foreign event loops	2019-10-08 22:09:05 +02:00
sangelovic	e30ce194ab	Add getSenderName method to Message	2019-10-06 11:28:16 +02:00
Stanislav Angelovič	8dea11bac6	Add note on solving potential getent-related Yocto errors	2019-07-09 18:29:58 +02:00
Stanislav Angelovic	750dab3927	Bump revision up to 0.7.2	2019-07-08 10:01:11 +02:00
Stanislav Angelovic	bf35157a4a	Comment out unused parameter	2019-07-08 09:58:22 +02:00
Stanislav Angelovič	a09362f79a	Switch from plain UnixFd to owning UnixFd (#69 )	2019-07-08 09:53:53 +02:00
Stanislav Angelovič	c264f83e83	Fix Yocto chapter level in the tutorial	2019-06-12 15:03:26 +02:00
Stanislav Angelovič	71adb5cf30	Add notes on sdbus-c++ Yocto recipes to the tutorial	2019-06-12 15:02:01 +02:00
sangelovic	00177a7e4c	Bump revision up to 0.7.1	2019-06-12 09:18:55 +02:00
Stanislav Angelovic	9826d28f51	Add missing Factory friend to Message subclasses	2019-06-11 20:29:45 +02:00
Stanislav Angelovic	ab34b0ae50	Update header doxy comments in source files	2019-06-11 20:18:37 +02:00
sangelovic	ff944c9e95	Add protected non-virtual destructor in generated classes	2019-06-10 22:54:16 +02:00
sangelovic	7049d00a78	Remove unnecessary std::move of parameters (thanks to @ardazishvili) Fixes part of #52	2019-06-10 22:03:02 +02:00
sangelovic	236c10ff56	Resolve a few clang-tidy suggestions and warnings (thanks to @ardazishvili) Fixes part of #52.	2019-06-10 21:54:02 +02:00
Stanislav Angelovič	dcad208ffe	Redesign inheritance from Message (#62 ) ... so that the code is more idiomatic, clear and expressive about its intended use	2019-06-10 21:38:30 +02:00
sangelovic	57c840637c	Add support for Unix fd D-Bus type	2019-06-10 21:19:56 +02:00
Stanislav Angelovič	efe799ef3f	Update section on standard D-Bus interfaces in the tutorial	2019-06-05 12:34:43 +02:00
Stanislav Angelovic	5c0a8d5ab4	Add object manager automatically in ObjectManager_adaptor constructor	2019-06-05 12:18:04 +02:00
Stanislav Angelovič	65b3e7ba00	Update README	2019-06-05 11:43:06 +02:00
sangelovic	b2b0bddf02	Fix Variant signal test in integration tests	2019-06-04 23:45:45 +02:00
sangelovic	11f0edf7b8	Fix fragile time-based waiting in integration tests	2019-06-04 22:48:54 +02:00
sangelovic	946cc8d0cd	Fix indentation of doxygen comments	2019-06-04 22:21:49 +02:00
sangelovic	07625a435b	Bump revision up to 0.7.0	2019-06-04 21:39:29 +02:00
sangelovic	fbb5242729	Add emit prefix to generated signal emitting methods	2019-06-04 21:30:09 +02:00
Stanislav Angelovič	dbeaf87208	Remove obsolete section from the tutorial	2019-06-03 23:58:29 +02:00
Stanislav Angelovič	45176c9eb7	Update the tutorial with standard D-Bus interfaces info	2019-06-03 23:57:14 +02:00
sangelovic	38b51bddc6	Add support for ObjectManager's InterfaceAdded/Removed signals on server side	2019-06-03 23:47:27 +02:00
Stanislav Angelovič	01e2a7a570	Add support for PropertyChanged signal on server side	2019-06-03 22:02:15 +02:00
Stanislav Angelovič	38552483ca	Update ChangeLog	2019-05-29 22:41:59 +02:00
Stanislav Angelovič	91fa35140b	Add support for ObjectManager and other standard D-Bus interfaces (#55 ) Fixes #50	2019-05-29 22:28:15 +02:00
Stanislav Angelovič	4b0c23204d	Add object manager support to IConnection interface (#54 )	2019-05-27 20:51:42 +02:00
sangelovic	c13ee60b7e	Have no update step in external googletest build This enables (re)building sdbus-c++ with already built googletest without the need for Internet connection	2019-05-26 15:38:58 +02:00
sangelovic	6ee66dfc47	Update ChangeLog for incoming new release	2019-05-26 15:37:32 +02:00
sangelovic	ed5c7a1fd5	Update INSTALL	2019-05-26 15:36:14 +02:00
Stanislav Angelovic	6629d31733	Update CMake usage example in tutorial	2019-05-23 22:04:51 +02:00
Stanislav Angelovic	0014bb0b6e	Go a step further towards modern CMake and cleaner project structure	2019-05-23 21:40:59 +02:00
sangelovic	ad3749f2c2	Add libmount as dependency for libsystemd	2019-05-20 23:28:28 +02:00
sangelovic	0045e8fcdc	Do shallow clone of googletest	2019-05-20 23:08:20 +02:00
Stanislav Angelovic	e12a9c3914	Move the license to the parent tools directory	2019-05-14 14:42:00 +02:00
Stanislav Angelovic	19d852e1b9	Add licence to the codegen tool	2019-05-14 14:38:22 +02:00
Stanislav Angelovic	8da3e312bc	Make tools a sdbus-c++-tools project, not codegen specifically	2019-05-14 14:38:05 +02:00
Stanislav Angelovic	81b5a67f35	Use shallow clone for libsystemd external project	2019-05-13 19:21:23 +02:00
sangelovic	b87b0c9dd9	Fix the way of handling thread-local system bus	2019-05-12 10:23:26 +02:00
Roman	76414ff09e	Add pkgconfig to Dependencies section in README (#51 )	2019-05-09 19:37:56 +02:00
Stanislav Angelovic	4998895f41	Hide some internal googletest-specific CMake options	2019-05-09 19:17:32 +02:00
Stanislav Angelovic	7763c66513	Add support for libsystemd versions up to the newest 242, and set 242 as default version	2019-05-09 19:16:16 +02:00
Stanislav Angelovič	7c3f91310f	Improve docs on steps needed to build libsystemd	2019-05-08 23:54:32 +02:00
Stanislav Angelovič	2256adf707	Add section on automatically provided standard D-Bus interfaces	2019-05-08 23:44:22 +02:00
Stanislav Angelovič	2c218ab3ba	Minor update of tutorial -- building libsystemd as part of sdbus-c++	2019-04-28 17:20:11 +02:00
sangelovic	0cffed4574	Add option to build libsystemd automatically as integral part of sdbus-c++	2019-04-28 17:09:37 +02:00
sangelovic	36269897fd	Remove unwanted sdbus-c++-internal includes from integration tests	2019-04-28 15:59:29 +02:00
sangelovic	1b1b9ae8ae	Move code generator to tools subdirectory for higher consistency with OSS standards	2019-04-26 00:03:46 +02:00
sangelovic	1b02c604d8	Rename test subdirectory to tests for higher consistency with OSS standards	2019-04-25 23:54:51 +02:00
sangelovic	981206fa8c	Rename doc subdirectory to docs for higher consistency with OSS standards	2019-04-25 23:48:11 +02:00
Stanislav Angelovic	b0dfea041d	Use googletest from master because 1.8.1 causes THREADS_PTHREAD_ARG issue when cross-compiling	2019-04-25 17:15:35 +02:00
Stanislav Angelovic	824aaa711e	Separate doxygen doc building from other docs	2019-04-25 13:34:33 +02:00
Stanislav Angelovic	882262bc2f	Switch back to support also CMake 3.5	2019-04-25 12:51:50 +02:00
Stanislav Angelovic	4ede37d6a3	Install additional documentation files	2019-04-25 12:42:08 +02:00
Stanislav Angelovic	58647c6e7d	Update AUTHORS file	2019-04-25 12:41:12 +02:00
Stanislav Angelovič	a23d88a628	README: Add minimum versions of needed compilers	2019-04-23 20:35:52 +02:00
Stanislav Angelovič	29c438b3bb	README: Add link on solving systemd dependency on tutorial	2019-04-23 20:34:01 +02:00
Stanislav Angelovič	8b7b9197eb	Add info on solving libssystemd dependency	2019-04-23 20:30:57 +02:00
Stanislav Angelovič	2d27f99b32	Add note on dependency on systemd to README	2019-04-23 17:21:27 +02:00
Stanislav Angelovič	9bde7c7b68	Add more intro description of what sdbus-c++ is into README	2019-04-23 17:12:49 +02:00