Correct JackNetDriver::ProcessNull

git-svn-id: http://subversion.jackaudio.org/jack/jack2/trunk/jackmp@2497 0c269be4-1314-0410-8aa9-9f06e86f4224

common/JackNetDriver.cpp

@@ -89,7 +89,8 @@ namespace Jack
     
     int JackNetDriver::ProcessNull()
     {
-        static unsigned int wait_time = (unsigned int)((float(fEngineControl->fBufferSize) / (float(fEngineControl->fSampleRate))) * 1000000.0f);
+        JackDriver::CycleTakeTime();
+        int wait_time = (int((float(fEngineControl->fBufferSize) / (float(fEngineControl->fSampleRate))) * 1000000.0f));
         usleep(wait_time);
         return JackAudioDriver::ProcessNull();
     }