forked from Kistler-Group/sdbus-cpp
e2b3e98374
* Catch and process all exceptions (not just sdbus::Error) from callback handlers * Unify handling of exceptions from all types of callbacks -- always set sd_bus_error and return a negative result number in case of exception Although libsystemd logs (with DEBUG severity) all errors from such callback handlers (except method callback handler), it seems to be out of our control. One of handy sdbus-c++ features could be the ability for clients to install a log callback, which sdbus-c++ would call in case of exceptions flying from callback handlers. In case something doesn't work for clients (especially novices), they can first look into these logs. This may be handy in common situations like ignored signals on client side because of the inadvertent mismatch between real signal signature and signal handler signature. Like here: #373. (Although in this specific case of signals, there is a solution with an additional const sdbus::Error* argument that would reveal such an error.)
92 lines
2.5 KiB
C++
92 lines
2.5 KiB
C++
/**
|
|
* (C) 2016 - 2021 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
|
|
* (C) 2016 - 2022 Stanislav Angelovic <stanislav.angelovic@protonmail.com>
|
|
*
|
|
* @file Error.h
|
|
*
|
|
* Created on: Nov 8, 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_ERROR_H_
|
|
#define SDBUS_CXX_ERROR_H_
|
|
|
|
#include <errno.h>
|
|
#include <stdexcept>
|
|
#include <string>
|
|
|
|
namespace sdbus {
|
|
|
|
/********************************************//**
|
|
* @class Error
|
|
*
|
|
* Represents a common sdbus-c++ exception.
|
|
*
|
|
***********************************************/
|
|
class Error
|
|
: public std::runtime_error
|
|
{
|
|
public:
|
|
explicit Error(const std::string& name, const char* message = nullptr)
|
|
: Error(name, std::string(message ? message : ""))
|
|
{
|
|
}
|
|
|
|
Error(const std::string& name, const std::string& message)
|
|
: std::runtime_error("[" + name + "] " + message)
|
|
, name_(name)
|
|
, message_(message)
|
|
{
|
|
}
|
|
|
|
const std::string& getName() const
|
|
{
|
|
return name_;
|
|
}
|
|
|
|
const std::string& getMessage() const
|
|
{
|
|
return message_;
|
|
}
|
|
|
|
bool isValid() const
|
|
{
|
|
return !getName().empty();
|
|
}
|
|
|
|
private:
|
|
std::string name_;
|
|
std::string message_;
|
|
};
|
|
|
|
sdbus::Error createError(int errNo, const std::string& customMsg);
|
|
|
|
inline const char* SDBUSCPP_ERROR_NAME = "org.sdbuscpp.Error";
|
|
}
|
|
|
|
#define SDBUS_THROW_ERROR(_MSG, _ERRNO) \
|
|
throw sdbus::createError((_ERRNO), (_MSG)) \
|
|
/**/
|
|
|
|
#define SDBUS_THROW_ERROR_IF(_COND, _MSG, _ERRNO) \
|
|
if (!(_COND)) ; else SDBUS_THROW_ERROR((_MSG), (_ERRNO)) \
|
|
/**/
|
|
|
|
#endif /* SDBUS_CXX_ERROR_H_ */
|