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PTHREAD_MUTEX_LOCK(3) BSD Library Functions Manual PTHREAD_MUTEX_LOCK(3) NAME pthread_mutex_lock -- lock a mutex SYNOPSIS #include <pthread.h> int pthread_mutex_lock(pthread_mutex_t *mutex); DESCRIPTION The pthread_mutex_lock() function locks mutex. If the mutex is already locked, the calling thread will block until the mutex becomes available. RETURN VALUES If successful, pthread_mutex_lock() will return zero. Otherwise, an error number will be returned to indicate the error. ERRORS pthread_mutex_lock() will fail if: [EDEADLK] A deadlock would occur if the thread blocked waiting for mutex. [EINVAL] The value specified by mutex is invalid. SEE ALSO pthread_mutex_destroy(3), pthread_mutex_init(3), pthread_mutex_trylock(3), pthread_mutex_unlock(3) STANDARDS pthread_mutex_lock() conforms to ISO/IEC 9945-1:1996 (``POSIX.1''). BSD July 30, 1998 BSD |