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PTHREAD_MUTEX_LOCK(3) Library Functions Manual PTHREAD_MUTEX_LOCK(3) NAME pthread_mutex_lock -- lock a mutex LIBRARY POSIX Threads Library (libpthread, -lpthread) 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 The pthread_mutex_lock() function will fail if: [EINVAL] The value specified by mutex is invalid. [EDEADLK] A deadlock would occur if the thread blocked waiting for mutex. [EOWNERDEAD] The argument mutex points to a robust mutex and the process containing the previous owning thread termi- nated while holding the mutex lock. The lock was granted to the caller and it is up to the new owner to make the state consistent. [ENOTRECOVERABLE] The state protected by the mutex is not recoverable. SEE ALSO pthread_mutex_consistent(3), pthread_mutex_destroy(3), pthread_mu- tex_init(3), pthread_mutex_trylock(3), pthread_mutex_unlock(3) STANDARDS The pthread_mutex_lock() function conforms to ISO/IEC 9945-1:1996 ("POSIX.1"). FreeBSD ports 15.1 August 7, 2019 PTHREAD_MUTEX_LOCK(3)
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | ERRORS | SEE ALSO | STANDARDS
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