More session shutdown cleanup

indra/llwebrtc/llwebrtc.cpp

@@ -280,9 +280,15 @@ void LLWebRTCImpl::terminate()
     {
         connection->terminate();
     }
-    mPeerConnections.clear();
+
+    // connection->terminate() above spawns a number of Signaling thread calls to
+    // shut down the connection.  The following Blocking Call will wait
+    // until they're done before it's executed, allowing time to clean up.
 
     mSignalingThread->BlockingCall([this]() { mPeerConnectionFactory = nullptr; });
+
+    mPeerConnections.clear();
+
     mWorkerThread->BlockingCall(
         [this]()
         {
@@ -652,7 +658,6 @@ LLWebRTCPeerConnectionImpl::LLWebRTCPeerConnectionImpl() :
 
 LLWebRTCPeerConnectionImpl::~LLWebRTCPeerConnectionImpl()
 {
-    terminate();
     mSignalingObserverList.clear();
     mDataObserverList.clear();
 }

indra/newview/llfloaterimsession.cpp

@@ -94,6 +94,7 @@ LLFloaterIMSession::LLFloaterIMSession(const LLUUID& session_id)
     mEnableCallbackRegistrar.add("Avatar.EnableGearItem", boost::bind(&LLFloaterIMSession::enableGearMenuItem, this, _2));
     mCommitCallbackRegistrar.add("Avatar.GearDoToSelected", boost::bind(&LLFloaterIMSession::GearDoToSelected, this, _2));
     mEnableCallbackRegistrar.add("Avatar.CheckGearItem", boost::bind(&LLFloaterIMSession::checkGearMenuItem, this, _2));
+    mVoiceChannelChanged = LLVoiceChannel::setCurrentVoiceChannelChangedCallback(boost::bind(&LLFloaterIMSession::onVoiceChannelChanged, this, _1));
 
     setDocked(true);
 }
@@ -292,6 +293,8 @@ LLFloaterIMSession::~LLFloaterIMSession()
 	}
 
 	LLTransientFloaterMgr::getInstance()->removeControlView(LLTransientFloaterMgr::IM, this);
+
+	mVoiceChannelChanged.disconnect();
 }
 
 
@@ -521,6 +524,14 @@ void LLFloaterIMSession::sendParticipantsAddedNotification(const uuid_vec_t& uui
 	sendMsg(getString(uuids.size() > 1 ? "multiple_participants_added" : "participant_added", args));
 }
 
+void LLFloaterIMSession::onVoiceChannelChanged(const LLUUID &session_id)
+{
+	if (session_id == mSessionID)
+	{
+		boundVoiceChannel();
+	}
+}
+
 void LLFloaterIMSession::boundVoiceChannel()
 {
 	LLVoiceChannel* voice_channel = LLIMModel::getInstance()->getVoiceChannel(mSessionID);

indra/newview/llfloaterimsession.h

@@ -161,6 +161,8 @@ private:
 
 	void onCallButtonClicked();
 
+	void onVoiceChannelChanged(const LLUUID &session_id);
+
 	void boundVoiceChannel();
 
 	// Add the "User is typing..." indicator.
@@ -195,6 +197,9 @@ private:
 	uuid_vec_t mInvitedParticipants;
 	uuid_vec_t mPendingParticipants;
 
+	// notification when the voice channel is swapped out from beneath us.
+	boost::signals2::connection mVoiceChannelChanged;
+
 	// connection to voice channel state change signal
 	boost::signals2::connection mVoiceChannelStateChangeConnection;
 

indra/newview/llimview.cpp

@@ -789,10 +789,15 @@ LLIMModel::LLIMSession::LLIMSession(const LLUUID& session_id,
 
 void LLIMModel::LLIMSession::initVoiceChannel(const LLSD& voiceChannelInfo)
 {
-	mVoiceChannelStateChangeConnection.disconnect();
 
 	if (mVoiceChannel)
 	{
+		if (mVoiceChannel->isThisVoiceChannel(voiceChannelInfo))
+		{
+			return;
+		}
+		mVoiceChannelStateChangeConnection.disconnect();
+
 		mVoiceChannel->deactivate();
 
 		delete mVoiceChannel;

indra/newview/llvoicechannel.h

@@ -93,6 +93,8 @@ public:
 	void setCallDirection(EDirection direction) {mCallDirection = direction;}
 	EDirection getCallDirection() {return mCallDirection;}
 
+	bool isThisVoiceChannel(const LLSD &voiceChannelInfo) { return LLVoiceClient::getInstance()->compareChannels(mChannelInfo, voiceChannelInfo); }
+
 	static LLVoiceChannel* getChannelByID(const LLUUID& session_id);
 	static LLVoiceChannel* getCurrentVoiceChannel();
 
@@ -115,7 +117,7 @@ public:
 	EState		mState;
 	std::string	mSessionName;
 	LLSD        mNotifyArgs;
-	LLSD        mChannelInfo; 
+	LLSD        mChannelInfo;
 	// true if call was ended by agent
 	bool mCallEndedByAgent;
 	bool mIgnoreNextSessionLeave;

indra/newview/llvoicewebrtc.cpp

@@ -2471,7 +2471,6 @@ void LLVoiceWebRTCConnection::breakVoiceConnectionCoro()
     httpOpts->setWantHeaders(true);
 
     mOutstandingRequests++;
-    setVoiceConnectionState(VOICE_STATE_WAIT_FOR_EXIT);
 
     // tell the server to shut down the connection as a courtesy.
     // shutdownConnection will drop the WebRTC connection which will
@@ -2479,10 +2478,7 @@ void LLVoiceWebRTCConnection::breakVoiceConnectionCoro()
     LLSD result = httpAdapter->postAndSuspend(httpRequest, url, body, httpOpts);
 
     mOutstandingRequests--;
-    if (!LLWebRTCVoiceClient::isShuttingDown())
-    {
-        setVoiceConnectionState(VOICE_STATE_SESSION_EXIT);
-    }
+    setVoiceConnectionState(VOICE_STATE_SESSION_EXIT);
 }
 
 // Tell the simulator to tell the Secondlife WebRTC server that we want a voice
@@ -2745,6 +2741,7 @@ bool LLVoiceWebRTCConnection::connectionStateMachine()
             break;
 
         case VOICE_STATE_DISCONNECT:
+            setVoiceConnectionState(VOICE_STATE_WAIT_FOR_EXIT);
             LLCoros::instance().launch("LLVoiceWebRTCConnection::breakVoiceConnectionCoro",
                                        boost::bind(&LLVoiceWebRTCConnection::breakVoiceConnectionCoro, this));
             break;