PTHREAD_MUTEXATTR_GET... BSD Library Functions Manual PTHREAD_MUTEXATTR_GET...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 rep‐
resenting 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 suc‐
cessful; 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 ALSOpthread_mutexattr_gettype(3), pthread_mutexattr_settype(3),
pthread_mutex_destroy(3), pthread_mutex_init(3)BSD February 13, 2003 BSD