pthread_mutex_trylock man page on MirBSD
[printable version]
PTHREAD_MUTEX_TRYLOCK(3) BSD Programmer's Manual PTHREAD_MUTEX_TRYLOCK(3)
NAME
pthread_mutex_trylock - attempt to lock a mutex without blocking
SYNOPSIS
#include <pthread.h>
int
pthread_mutex_trylock(pthread_mutex_t *mutex);
DESCRIPTION
The pthread_mutex_trylock() function locks mutex. If the mutex is already
locked, pthread_mutex_trylock() will not block waiting for the mutex, but
will return an error condition.
RETURN VALUES
If successful, pthread_mutex_trylock() will return zero, otherwise an er-
ror number will be returned to indicate the error.
ERRORS
pthread_mutex_trylock() will fail if:
[EINVAL] The value specified by mutex is invalid.
[EBUSY] mutex is already locked.
SEE ALSO
pthread_mutex_destroy(3), pthread_mutex_init(3), pthread_mutex_lock(3),
pthread_mutex_unlock(3)
STANDARDS
pthread_mutex_trylock() conforms to ISO/IEC 9945-1:1996 ("POSIX").
MirOS BSD #10-current July 30, 1998 1
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