newlib-cygwin/winsup/testsuite/winsup.api/pthread/mutex1n.c

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/*
* mutex1n.c
*
* As for mutex1.c but with type set to PTHREAD_MUTEX_NORMAL.
*
* Create a simple mutex object, lock it, unlock it, then destroy it.
* This is the simplest test of the pthread mutex family that we can do.
*
* Depends on API functions:
* pthread_mutexattr_settype()
* pthread_mutex_init()
* pthread_mutex_destroy()
*/
#include "test.h"
pthread_mutex_t mutex = NULL;
pthread_mutexattr_t mxAttr;
int
main()
{
assert(pthread_mutexattr_init(&mxAttr) == 0);
assert(pthread_mutexattr_settype(&mxAttr, PTHREAD_MUTEX_NORMAL) == 0);
assert(mutex == NULL);
assert(pthread_mutex_init(&mutex, &mxAttr) == 0);
assert(mutex != NULL);
assert(pthread_mutex_lock(&mutex) == 0);
assert(pthread_mutex_unlock(&mutex) == 0);
assert(pthread_mutex_destroy(&mutex) == 0);
assert(mutex == NULL);
return 0;
}