Clear disconnected clients from the bottleneck stats api

common/network/GetAPI.h

@@ -37,6 +37,7 @@ namespace network {
     // from main thread
     void mainUpdateScreen(rfb::PixelBuffer *pb);
     void mainUpdateBottleneckStats(const char userid[], const char stats[]);
+    void mainClearBottleneckStats(const char userid[]);
     void mainUpdateServerFrameStats(uint8_t changedPerc, uint32_t all,
                                     uint32_t jpeg, uint32_t webp, uint32_t analysis,
                                     uint32_t jpegarea, uint32_t webparea,

common/network/GetAPIMessager.cxx

@@ -110,6 +110,15 @@ void GetAPIMessager::mainUpdateBottleneckStats(const char userid[], const char s
 	pthread_mutex_unlock(&statMutex);
 }
 
+void GetAPIMessager::mainClearBottleneckStats(const char userid[]) {
+	if (pthread_mutex_trylock(&statMutex))
+		return;
+
+	bottleneckStats.erase(userid);
+
+	pthread_mutex_unlock(&statMutex);
+}
+
 void GetAPIMessager::mainUpdateServerFrameStats(uint8_t changedPerc,
 	uint32_t all, uint32_t jpeg, uint32_t webp, uint32_t analysis,
 	uint32_t jpegarea, uint32_t webparea,

common/rfb/VNCSConnectionST.cxx

@@ -133,8 +133,10 @@ VNCSConnectionST::~VNCSConnectionST()
 
   delete [] fenceData;
 
-  if (server->apimessager)
+  if (server->apimessager) {
     server->apimessager->mainUpdateUserInfo(checkOwnerConn(), server->clients.size());
+    server->apimessager->mainClearBottleneckStats(peerEndpoint.buf);
+  }
 }