add background task to client group chat room

src/chat/chat-room/client-group-chat-room-p.h

@@ -22,6 +22,7 @@
 
 #include "chat/chat-room/chat-room-p.h"
 #include "client-group-chat-room.h"
+#include "utils/background-task.h"
 
 // =============================================================================
 
@@ -53,6 +54,7 @@ private:
 	ChatRoomListener *chatRoomListener = this;
 	ClientGroupChatRoom::CapabilitiesMask capabilities = ClientGroupChatRoom::Capabilities::Conference;
 	bool deletionOnTerminationEnabled = false;
+	BackgroundTask bgTask;
 
 	L_DECLARE_PUBLIC(ClientGroupChatRoom);
 };

src/chat/chat-room/client-group-chat-room.cpp

@@ -168,7 +168,11 @@ ClientGroupChatRoom::ClientGroupChatRoom (
 	const string &subject
 ) : ChatRoom(*new ClientGroupChatRoomPrivate, core, ChatRoomId(IdentityAddress(), me)),
 RemoteConference(core, me, nullptr) {
+	L_D();
 	L_D_T(RemoteConference, dConference);
+
+	d->bgTask.setName("Client group chat room refer received");
+
 	IdentityAddress focusAddr(uri);
 	dConference->focus = make_shared<Participant>(focusAddr);
 	dConference->focus->getPrivate()->addDevice(focusAddr);
@@ -207,11 +211,11 @@ shared_ptr<Core> ClientGroupChatRoom::getCore () const {
 }
 
 void ClientGroupChatRoom::allowCpim (bool value) {
-	
+
 }
 
 void ClientGroupChatRoom::allowMultipart (bool value) {
-	
+
 }
 
 bool ClientGroupChatRoom::canHandleCpim () const {
@@ -390,6 +394,7 @@ void ClientGroupChatRoom::join () {
 
 	shared_ptr<CallSession> session = dConference->focus->getPrivate()->getSession();
 	if (!session && ((getState() == ChatRoom::State::Instantiated) || (getState() == ChatRoom::State::Terminated))) {
+		d->bgTask.start();
 		session = d->createSession();
 		session->startInvite(nullptr, "", nullptr);
 		d->setState(ChatRoom::State::CreationPending);
@@ -400,6 +405,7 @@ void ClientGroupChatRoom::leave () {
 	L_D();
 	L_D_T(RemoteConference, dConference);
 
+	d->bgTask.start();
 	dConference->eventHandler->unsubscribe();
 
 	shared_ptr<CallSession> session = dConference->focus->getPrivate()->getSession();
@@ -471,6 +477,7 @@ void ClientGroupChatRoom::onFirstNotifyReceived (const IdentityAddress &addr) {
 		d->chatRoomId
 	));
 	#endif
+	d->bgTask.stop();
 }
 
 void ClientGroupChatRoom::onParticipantAdded (const shared_ptr<ConferenceParticipantEvent> &event, bool isFullState) {

src/utils/background-task.cpp

@@ -30,6 +30,11 @@ static void notifier (void *context) {
 }
 
 void BackgroundTask::start () {
+	if (mName.empty()) {
+		lError() << "No name was set on background task.";
+		return;
+	}
+
 	unsigned long newId = sal_begin_background_task(mName.c_str(), notifier, this);
 	lInfo() << "Starting background task [" << newId << "] with name : [" << mName << "].";
 	stop();
@@ -45,4 +50,9 @@ void BackgroundTask::stop () {
 	mId = 0;
 }
 
+void BackgroundTask::handleTimeout () {
+	lWarning() << "Background task [" << mId << "] with name : [" << mName << "] has expired before completion...";
+	stop();
+}
+
 LINPHONE_END_NAMESPACE

src/utils/background-task.h

@@ -30,11 +30,16 @@ LINPHONE_BEGIN_NAMESPACE
 
 class BackgroundTask {
 public:
+	BackgroundTask () = default;
 	BackgroundTask (const std::string &name) : mName(name) {}
 	virtual ~BackgroundTask () {
 		stop();
 	}
 
+	void setName (const std::string &name) {
+		mName = name;
+	}
+
 	void start ();
 	void stop ();
 
@@ -42,7 +47,7 @@ public:
 		return mName;
 	}
 
-	virtual void handleTimeout () {}
+	virtual void handleTimeout ();
 
 private:
 	std::string mName;