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pthread_mutexattr_setkind_np

Section: C Library Functions (3)
Updated: 202-0-17
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NAME

pthread_mutexattr_setkind_np, pthread_mutexattr_getkind_np - deprecated mutex creation attributes

SYNOPSIS

#include <pthread.h>
int pthread_mutexattr_setkind_np(pthread_mutexattr_t *attr, int kind);
int pthread_mutexattr_getkind_np(const pthread_mutexattr_t *attr,
                                 int *kind);

DESCRIPTION

These functions are deprecated, use pthread_mutexattr_settype(3) and pthread_mutexattr_gettype(3) instead.

RETURN VALUE

pthread_mutexattr_getkind_np() always returns 0. pthread_mutexattr_setkind_np() returns 0 on success and a no-zero error code on error.

ERRORS

On error, pthread_mutexattr_setkind_np() returns the following error code:

EINVAL: kind is neither PTHREAD_MUTEX_FAST_NP nor PTHREAD_MUTEX_RECURSIVE_NP nor PTHREAD_MUTEX_ERRORCHECK_NP.