Is it possible to generate non-blocking calls with dbusxx-xml2cpp? - c++

Question

I would like to generate C++ headers using dbusxx-xml2cpp where some methods are non-blocking, e.g. using invoke_method_noreply instead of invoke_method. Is this possible?
For example the following XML:
<?xml version="1.0" encoding="UTF-8" ?>
<node name="/me/MyService">
<interface name="me.MyService">
<method name="MyMethod">
<arg direction="in" type="s" name="argument"/>
</method>
</interface>
</node>
Would generate (partly):
void MyMethod(const std::string& argument)
{
::DBus::CallMessage call;
::DBus::MessageIter wi = call.writer();
wi << argument;
call.member("MyMethod");
::DBus::Message ret = invoke_method (call);
}
But I would like to have something like:
void MyMethod(const std::string& argument)
{
::DBus::CallMessage call;
::DBus::MessageIter wi = call.writer();
wi << argument;
call.member("MyMethod");
bool ret = invoke_method_noreply (call);
}

Answer 1

Use the annotation org.freedesktop.DBus.Method.NoReply"
Example XML:
<node>
<interface name="org.test.example">
<method name="NoReplyMethod">
<arg name="data" direction="in" type="i"/>
<annotation name="org.freedesktop.DBus.Method.NoReply" value="true"/>
</method>
</interface>
</node>
Generated Code:
void NoReplyMethod(const int32_t& data)
{
::DBus::CallMessage call;
::DBus::MessageIter wi = call.writer();
wi << data;
call.member("NoReplyMethod");
assert (invoke_method_noreply (call));
}