Change GKDBus::getConnection signature.

Make method const and return const pointer.

Author: netfab

src/lib/dbus/GKDBus.cpp

@@ -311,7 +311,7 @@ void GKDBus::checkDBusError(const char* error)
 	}
 }
 
-DBusConnection* GKDBus::getConnection(BusConnection bus)
+DBusConnection* const GKDBus::getConnection(BusConnection bus) const
 {
 	switch(bus) {
 		case BusConnection::GKDBUS_SESSION :

src/lib/dbus/GKDBus.hpp

@@ -111,7 +111,7 @@ class GKDBus
 			DBusConnection* const connection) noexcept;
 		void checkReleasedName(int ret) noexcept;
 		void checkDBusError(const char* error);
-		DBusConnection* getConnection(BusConnection bus);
+		DBusConnection* const getConnection(BusConnection bus) const;
 		const unsigned int getDBusRequestFlags(const ConnectionFlag flag) noexcept;
 };
 

src/lib/dbus/GKDBusEvents.hpp

@@ -112,7 +112,7 @@ class GKDBusEvents
 				std::map< const std::string, /* interface */
 					std::vector<GKDBusIntrospectableSignal> > > > _DBusIntrospectableSignals;
 
-		virtual DBusConnection* getConnection(BusConnection wantedConnection) = 0;
+		virtual DBusConnection* const getConnection(BusConnection wantedConnection) const = 0;
 
 		void openXMLInterface(
 			std::ostringstream & xml,

src/lib/dbus/messages/GKDBusBroadcastSignal.hpp

@@ -81,7 +81,7 @@ class GKDBusMessageBroadcastSignal
 	private:
 		GKDBusBroadcastSignal* _signal;
 
-		virtual DBusConnection* getConnection(BusConnection wantedConnection) = 0;
+		virtual DBusConnection* const getConnection(BusConnection wantedConnection) const = 0;
 };
 
 } // namespace NSGKDBus

src/lib/dbus/messages/GKDBusRemoteMethodCall.hpp

@@ -98,7 +98,7 @@ class GKDBusMessageRemoteMethodCall
 		GKDBusRemoteMethodCall* _remoteMethodCall;
 		DBusPendingCall* _pendingCall;
 
-		virtual DBusConnection* getConnection(BusConnection wantedConnection) = 0;
+		virtual DBusConnection* const getConnection(BusConnection wantedConnection) const = 0;
 };
 
 } // namespace NSGKDBus