35 lines
562 B
C
35 lines
562 B
C
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/*
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* mutex2.c
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*
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* Declare a static mutex object, lock it,
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* and then unlock it again.
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*
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* Depends on API functions:
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* pthread_mutex_lock()
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* pthread_mutex_unlock()
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*/
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#include "test.h"
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pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
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int
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main()
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{
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assert(mutex == PTHREAD_MUTEX_INITIALIZER);
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assert(pthread_mutex_lock(&mutex) == 0);
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assert(mutex != PTHREAD_MUTEX_INITIALIZER);
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assert(mutex != NULL);
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assert(pthread_mutex_unlock(&mutex) == 0);
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assert(pthread_mutex_destroy(&mutex) == 0);
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assert(mutex == NULL);
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return 0;
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}
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