PTHREAD_MUTEXATTR_GETKIND_NP(3) | FreeBSD Library Functions Manual | PTHREAD_MUTEXATTR_GETKIND_NP(3) |
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_mutexattr_gettype(3), pthread_mutexattr_settype(3), pthread_mutex_destroy(3), pthread_mutex_init(3)February 13, 2003 | FreeBSD |