Added exception handling around Beanstalk

src/daemon.cpp

@@ -274,7 +274,8 @@ void streamRecognitionThread(void* arg)
 
 bool writeToQueue(std::string jsonResult)
 {
-  
+  try
+  {
     Beanstalk::Client client(BEANSTALK_QUEUE_HOST, BEANSTALK_PORT);
     client.use(BEANSTALK_TUBE_NAME);
 
@@ -288,6 +289,11 @@ bool writeToQueue(std::string jsonResult)
     
     LOG4CPLUS_INFO(logger, "put job id: " << id );
 
+  }
+  catch (const std::runtime_error& error)
+  {
+    LOG4CPLUS_WARN(logger, "Error writing to Beanstalk.  Result has not been saved.");
+  }
   return true;
 }
 
@@ -302,12 +308,18 @@ void dataUploadThread(void* arg)
   
   UploadThreadData* udata = (UploadThreadData*) arg;
   
-  Beanstalk::Client client(BEANSTALK_QUEUE_HOST, BEANSTALK_PORT);
 
   
+  
+  while(daemon_active)
+  {
+    try
+    {
+      Beanstalk::Client client(BEANSTALK_QUEUE_HOST, BEANSTALK_PORT);
+      
       client.watch(BEANSTALK_TUBE_NAME);
     
-  while(daemon_active)
+      while (daemon_active)
       {
 	Beanstalk::Job job;
 	
@@ -328,9 +340,19 @@ void dataUploadThread(void* arg)
 	  }
 	}
 	
+	// Wait 10ms
 	usleep(10000);
       }
       
+    }
+    catch (const std::runtime_error& error)
+    {
+      LOG4CPLUS_WARN(logger, "Error connecting to Beanstalk.  Will retry." );
+    }
+    // wait 5 seconds
+    usleep(5000000);
+  }
+  
   curl_global_cleanup();
 }