detach pqistreamer threads to allow resource cleanup or re-use

git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@8113 b45a01b8-16f6-495d-af2f-9b41ad6348cc

libretroshare/src/pqi/pqithreadstreamer.cc

@@ -73,6 +73,9 @@ void pqithreadstreamer::run()
     std::cerr << "pqithreadstream::run()";
     std::cerr << std::endl;
 
+    // tell the OS to free the thread resources when this function exits
+    // it is a replacement for pthread_join()
+    pthread_detach(pthread_self());
 
     while(1)
     {