May be it has some relation with?
http://sourceforge.net/p/mingw-w64/mailman/message/31749147/
----- Original Message -----
From: "Keri Harris" <k...@gentoo.org>
To: <mingw-w64-public@lists.sourceforge.net>
Sent: Thursday, March 19, 2015 3:27 PM
Subject: [Mingw-w64-public] winpthreads cleanup handlers not called
afterpthread_exit()
> I've noticed some unexpected behaviour with winpthreads which I believe
> is a bug. Thread-cancellation cleanup handlers are not called when a
> thread terminates due to a call to pthread_exit(). This is unexpected;
> the pthread_cleanup_push(), pthread_cleanup_pop() specification [1]
> mentions:
>
> The cancellation cleanup handler shall be popped from the
> cancellation cleanup stack
> and invoked with the argument arg when:
>
> The thread exits (that is, calls pthread_exit()).
>
> An example program illustrating winpthreads failing to invoke cleanup
> handlers follows:
>
>
> #include <pthread.h>
> #include <stdio.h>
>
> void* cleanup_func(void *arg)
> {
> printf("cleanup_func()\n");
> }
>
> void* func(void *arg)
> {
> printf("func()\n");
> pthread_cleanup_push(cleanup_func, 0);
> pthread_exit(NULL);
> pthread_cleanup_pop(1);
> }
>
> int main()
> {
> pthread_t t;
> void *ret;
>
> pthread_create(&t, NULL, func, (void*)NULL);
> pthread_join(t, &ret);
>
> return 0;
> }
>
>
>
> Thanks
>
> Keri
>
> [1]
> http://pubs.opengroup.org/onlinepubs/000095399/functions/pthread_cleanup_pop.html
>
>
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