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Diffstat (limited to 'tests/mutex7n.c')
-rw-r--r-- | tests/mutex7n.c | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/tests/mutex7n.c b/tests/mutex7n.c new file mode 100644 index 0000000..d3f2206 --- /dev/null +++ b/tests/mutex7n.c @@ -0,0 +1,84 @@ +/* + * mutex7n.c + * + * + * Pthreads-win32 - POSIX Threads Library for Win32 + * Copyright (C) 1998 Ben Elliston and Ross Johnson + * Copyright (C) 1999,2000,2001 Ross Johnson + * + * Contact Email: rpj@ise.canberra.edu.au + * + * 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 2.1 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; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * -------------------------------------------------------------------------- + * + * Tests PTHREAD_MUTEX_NORMAL mutex type. + * Thread locks then trylocks mutex (attempted recursive lock). + * The thread should lock first time and EBUSY second time. + * + * Depends on API functions: + * pthread_create() + * pthread_mutexattr_init() + * pthread_mutexattr_settype() + * pthread_mutexattr_gettype() + * pthread_mutex_init() + * pthread_mutex_lock() + * pthread_mutex_unlock() + */ + +#include "test.h" + +static int lockCount = 0; + +static pthread_mutex_t mutex; +static pthread_mutexattr_t mxAttr; + +void * locker(void * arg) +{ + assert(pthread_mutex_lock(&mutex) == 0); + lockCount++; + assert(pthread_mutex_trylock(&mutex) == EBUSY); + lockCount++; + assert(pthread_mutex_unlock(&mutex) == 0); + assert(pthread_mutex_unlock(&mutex) == EPERM); + + return (void *) 555; +} + +int +main() +{ + pthread_t t; + int mxType = -1; + + assert(pthread_mutexattr_init(&mxAttr) == 0); + assert(pthread_mutexattr_settype(&mxAttr, PTHREAD_MUTEX_NORMAL) == 0); + assert(pthread_mutexattr_gettype(&mxAttr, &mxType) == 0); + assert(mxType == PTHREAD_MUTEX_NORMAL); + + assert(pthread_mutex_init(&mutex, &mxAttr) == 0); + + assert(pthread_create(&t, NULL, locker, NULL) == 0); + + Sleep(1000); + + assert(lockCount == 2); + + exit(0); + + /* Never reached */ + return 0; +} + |