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/*
* mutex6s.c
*
*
* --------------------------------------------------------------------------
*
* Pthreads-win32 - POSIX Threads Library for Win32
* Copyright(C) 1998 John E. Bossom
* Copyright(C) 1999,2012 Pthreads-win32 contributors
*
* Homepage1: http://sourceware.org/pthreads-win32/
* Homepage2: http://sourceforge.net/projects/pthreads4w/
*
* The current list of contributors is contained
* in the file CONTRIBUTORS included with the source
* code distribution. The list can also be seen at the
* following World Wide Web location:
* http://sources.redhat.com/pthreads-win32/contributors.html
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library in the file COPYING.LIB;
* if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*
* --------------------------------------------------------------------------
*
* Test the default (type not set) static mutex type.
* Should be the same as PTHREAD_MUTEX_NORMAL.
* Thread locks mutex twice (recursive lock).
* Locking thread should deadlock on second attempt.
*
* Depends on API functions:
* pthread_mutex_lock()
* pthread_mutex_trylock()
* pthread_mutex_unlock()
*/
#include "test.h"
static int lockCount = 0;
static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
void * locker(void * arg)
{
assert(pthread_mutex_lock(&mutex) == 0);
lockCount++;
/* Should wait here (deadlocked) */
assert(pthread_mutex_lock(&mutex) == 0);
lockCount++;
assert(pthread_mutex_unlock(&mutex) == 0);
return 0;
}
int
main()
{
pthread_t t;
assert(mutex == PTHREAD_MUTEX_INITIALIZER);
assert(pthread_create(&t, NULL, locker, NULL) == 0);
Sleep(1000);
assert(lockCount == 1);
/*
* Should succeed even though we don't own the lock
* because FAST mutexes don't check ownership.
*/
assert(pthread_mutex_unlock(&mutex) == 0);
Sleep (1000);
assert(lockCount == 2);
return 0;
}
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