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PTHREAD_MUTEXATTR_GETKIND_NP(3) FreeBSD Library Functions Manual
NAME
pthread_mutexattr_getkind_np, pthread_mutexattr_setkind_np - mutex
attribute operations (legacy)
LIBRARY
POSIX Threads Library (libpthread, -lpthread)
SYNOPSIS
#include <pthread_np.h>
int
pthread_mutexattr_getkind_np(pthread_mutexattr_t attr);
int
pthread_mutexattr_setkind_np(pthread_mutexattr_t *attr, int kind);
DESCRIPTION
These functions are deprecated and non-portable implementation of the
mutex type manipulation.
It is recommended to use the pthread_mutexattr_gettype(3) and
pthread_mutexattr_settype(3) functions instead.
RETURN VALUES
The pthread_mutexattr_getkind_np() function returns a positive value
representing the "kind" of the mutex attribute attr if successful;
otherwise the value -1 is returned and the global variable errno is set
to indicate the error.
The pthread_mutexattr_setkind_np() function returns the value 0 if
successful; otherwise the value -1 is returned and the global variable
errno is set to indicate the error.
ERRORS
The pthread_mutexattr_getkind_np() and pthread_mutexattr_setkind_np()
functions will fail if:
[EINVAL] The value specified by attr is invalid.
SEE ALSO
pthread_mutex_destroy(3), pthread_mutex_init(3),
pthread_mutexattr_gettype(3), pthread_mutexattr_settype(3), pthread_np(3)
FreeBSD 14.0-RELEASE-p6 October 12, 2021 FreeBSD 14.0-RELEASE-p6