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feat: add support for async property get/set on client-side (#354)

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* feat: add async property get/set convenience support classes

* feat: add no-reply and async overloads to Properties_proxy

* feat: add convenience functions for GetAll functionality

* test: add tests for new functionality

* add codegen IDL support and documentation
This commit is contained in:
Stanislav Angelovič
2023-09-14 10:54:57 +02:00
committed by GitHub
parent 0eda855745
commit 290078d6af
9 changed files with 685 additions and 57 deletions
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99
tools/xml2cpp-codegen/ProxyGenerator.cpp
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@@ -108,12 +108,18 @@ std::string ProxyGenerator::processInterface(Node& interface) const
if (!declaration.empty())
body << declaration << endl;
std::string methodDefinitions, asyncDeclarations;
std::tie(methodDefinitions, asyncDeclarations) = processMethods(methods);
std::string methodDefinitions, asyncDeclarationsMethods;
std::tie(methodDefinitions, asyncDeclarationsMethods) = processMethods(methods);
std::string propertyDefinitions, asyncDeclarationsProperties;
std::tie(propertyDefinitions, asyncDeclarationsProperties) = processProperties(properties);
if (!asyncDeclarations.empty())
if (!asyncDeclarationsMethods.empty())
{
body << asyncDeclarations << endl;
body << asyncDeclarationsMethods << endl;
}
if (!asyncDeclarationsProperties.empty())
{
body << asyncDeclarationsProperties << endl;
}
if (!methodDefinitions.empty())
@@ -121,7 +127,6 @@ std::string ProxyGenerator::processInterface(Node& interface) const
body << "public:" << endl << methodDefinitions;
}
std::string propertyDefinitions = processProperties(properties);
if (!propertyDefinitions.empty())
{
body << "public:" << endl << propertyDefinitions;
@@ -293,9 +298,9 @@ std::tuple<std::string, std::string> ProxyGenerator::processSignals(const Nodes&
return std::make_tuple(registrationSS.str(), declarationSS.str());
}
std::string ProxyGenerator::processProperties(const Nodes& properties) const
std::tuple<std::string, std::string> ProxyGenerator::processProperties(const Nodes& properties) const
{
std::ostringstream propertySS;
std::ostringstream propertySS, asyncDeclarationSS;
for (const auto& property : properties)
{
auto propertyName = property->get("name");
@@ -307,25 +312,93 @@ std::string ProxyGenerator::processProperties(const Nodes& properties) const
auto propertyArg = std::string("value");
auto propertyTypeArg = std::string("const ") + propertyType + "& " + propertyArg;
bool asyncGet{false};
bool futureGet{false}; // Async property getter implemented by means of either std::future or callbacks
bool asyncSet{false};
bool futureSet{false}; // Async property setter implemented by means of either std::future or callbacks
Nodes annotations = (*property)["annotation"];
for (const auto& annotation : annotations)
{
const auto annotationName = annotation->get("name");
const auto annotationValue = annotation->get("value");
if (annotationName == "org.freedesktop.DBus.Property.Get.Async" && annotationValue == "client") // Server-side not supported (may be in the future)
asyncGet = true;
else if (annotationName == "org.freedesktop.DBus.Property.Get.Async.ClientImpl" && annotationValue == "callback")
futureGet = false;
else if (annotationName == "org.freedesktop.DBus.Property.Get.Async.ClientImpl" && (annotationValue == "future" || annotationValue == "std::future"))
futureGet = true;
else if (annotationName == "org.freedesktop.DBus.Property.Set.Async" && annotationValue == "client") // Server-side not supported (may be in the future)
asyncSet = true;
else if (annotationName == "org.freedesktop.DBus.Property.Set.Async.ClientImpl" && annotationValue == "callback")
futureSet = false;
else if (annotationName == "org.freedesktop.DBus.Property.Set.Async.ClientImpl" && (annotationValue == "future" || annotationValue == "std::future"))
futureSet = true;
}
if (propertyAccess == "read" || propertyAccess == "readwrite")
{
propertySS << tab << propertyType << " " << propertyNameSafe << "()" << endl
const std::string realRetType = (asyncGet ? (futureGet ? "std::future<sdbus::Variant>" : "sdbus::PendingAsyncCall") : propertyType);
propertySS << tab << realRetType << " " << propertyNameSafe << "()" << endl
<< tab << "{" << endl;
propertySS << tab << tab << "return proxy_->getProperty(\"" << propertyName << "\")"
propertySS << tab << tab << "return proxy_->getProperty" << (asyncGet ? "Async" : "") << "(\"" << propertyName << "\")"
".onInterface(INTERFACE_NAME)";
if (asyncGet)
{
auto nameBigFirst = propertyName;
nameBigFirst[0] = islower(nameBigFirst[0]) ? nameBigFirst[0] + 'A' - 'a' : nameBigFirst[0];
if (futureGet) // Async methods implemented through future
{
propertySS << ".getResultAsFuture()";
}
else // Async methods implemented through callbacks
{
propertySS << ".uponReplyInvoke([this](const sdbus::Error* error, const sdbus::Variant& value)"
"{ this->on" << nameBigFirst << "PropertyGetReply(value.get<" << propertyType << ">(), error); })";
asyncDeclarationSS << tab << "virtual void on" << nameBigFirst << "PropertyGetReply("
<< "const " << propertyType << "& value, const sdbus::Error* error) = 0;" << endl;
}
}
propertySS << ";" << endl << tab << "}" << endl << endl;
}
if (propertyAccess == "readwrite" || propertyAccess == "write")
{
propertySS << tab << "void " << propertyNameSafe << "(" << propertyTypeArg << ")" << endl
<< tab << "{" << endl;
propertySS << tab << tab << "proxy_->setProperty(\"" << propertyName << "\")"
const std::string realRetType = (asyncSet ? (futureSet ? "std::future<void>" : "sdbus::PendingAsyncCall") : "void");
propertySS << tab << realRetType << " " << propertyNameSafe << "(" << propertyTypeArg << ")" << endl
<< tab << "{" << endl;
propertySS << tab << tab << (asyncSet ? "return " : "") << "proxy_->setProperty" << (asyncSet ? "Async" : "")
<< "(\"" << propertyName << "\")"
".onInterface(INTERFACE_NAME)"
".toValue(" << propertyArg << ")";
if (asyncSet)
{
auto nameBigFirst = propertyName;
nameBigFirst[0] = islower(nameBigFirst[0]) ? nameBigFirst[0] + 'A' - 'a' : nameBigFirst[0];
if (futureSet) // Async methods implemented through future
{
propertySS << ".getResultAsFuture()";
}
else // Async methods implemented through callbacks
{
propertySS << ".uponReplyInvoke([this](const sdbus::Error* error)"
"{ this->on" << nameBigFirst << "PropertySetReply(error); })";
asyncDeclarationSS << tab << "virtual void on" << nameBigFirst << "PropertySetReply("
<< "const sdbus::Error* error) = 0;" << endl;
}
}
propertySS << ";" << endl << tab << "}" << endl << endl;
}
}
return propertySS.str();
return std::make_tuple(propertySS.str(), asyncDeclarationSS.str());
}