More questions on threads

[Colin Thomas <colin designresources co uk>]

Hi,

I now seem to have acquired the ability for none of the following to stop a gtk
program, which has had threads running in it!

gtk_main_quit()
gtk_exit(0)
exit(0)

All still leave the GUI hanging!

Only abort() will get rid of it ?

In my main routine I have:

#############################
 g_thread_init(NULL);
 gtk_set_locale ();
 gtk_init (&argc, &argv);
.
.
.
 gdk_threads_enter();
 gtk_main();
 gdk_threads_leave();
#############################

In my thread code, I G_LOCK/UNLOCK shared variables
When I need to access gtk functions I defered thread cancelation via:

#############################
 ////////////////////////
 status = pthread_setcancelstate ( PTHREAD_CANCEL_DISABLE, &state);
 ////////////////////////
 // get GTK thread lock 
 gdk_threads_enter();
 ////////////////////////
      
 GTK FUNCTIONS..
      
 ////////////////////////
 //release GTK thread lock 
 gdk_threads_leave();
 ////////////////////////
 status = pthread_setcancelstate ( state, &state);
#############################

The threads are only allowed to cancel at defined cancellation points:

#############################
  pthread_testcancel();
#############################

The main thread, cancels the child thread via:

#############################
 int CancelCode = pthread_cancel(ThreadId);
 int JoinCode = pthread_join (ThreadId ,&JoinResult);
#############################

If the thread is not run, then gtk_main_quit/gtk_exit/exit are okay ;-?

Any thoughts what might be causing this ??


I look forward to your thoughts.

best regards

/colin/