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PTHREAD_BARRIER_INIT(3) FreeBSD Library Functions Manual NAME pthread_barrier_init, pthread_barrier_destroy - initialize and destroy a barrier object SYNOPSIS #include <pthread.h> int pthread_barrier_init(pthread_barrier_t *barrier, pthread_barrierattr_t *attr, unsigned int count); int pthread_barrier_destroy(pthread_barrier_t *barrier); DESCRIPTION The pthread_barrier_init() function creates a new barrier object, with attributes specified with attr and with a threshold specified with count. If attr is NULL, the default attributes are used. The count argument is later used by the pthread_barrier_wait() function to check if the required number of threads reached the barrier. The pthread_barrier_destroy() function frees the resources allocated for barrier. RETURN VALUES If successful, pthread_barrier_init() and pthread_barrier_destroy() return zero; otherwise an error number is returned to indicate the error. ERRORS pthread_barrier_init() will fail if: [EINVAL] The value specified by barrier or attr is invalid. [ENOMEM] The process cannot allocate enough memory to create another barrier object. [ENOTSUP] The attributes specified by attr are not supported by the current implementation. pthread_barrier_destroy() will fail if: [EINVAL] The value specified by barrier is invalid. [EBUSY] There are still threads waiting on the barrier. SEE ALSO pthread_barrier_wait(3), pthread_barrierattr_getpshared(3), pthread_barrierattr_init(3) STANDARDS pthread_barrier_init() and pthread_barrier_destroy() conform to IEEE Std 1003.1-2008 ("POSIX.1"). BUGS Currently only private barriers are supported and the pshared attribute is always set that way. Any attempts to change that value will trigger ENOTSUP. FreeBSD 14.1-RELEASE-p8 March 31, 2022 FreeBSD 14.1-RELEASE-p8