PTHREAD_ATTR(3) BSD Library Functions Manual PTHREAD_ATTR(3)NAME
pthread_attr_getschedpolicy, pthread_attr_setschedpolicy — thread
attribute operations
SYNOPSIS
#include <pthread.h>
int
pthread_attr_getschedpolicy(const pthread_attr_t *restrict attr,
int *restrict policy);
int
pthread_attr_setschedpolicy(pthread_attr_t *attr, int policy);
DESCRIPTION
Thread attributes are used to specify parameters to pthread_create().
One attribute object can be used in multiple calls to pthread_create(),
with or without modifications between calls.
The functions pthread_attr_setschedpolicy() and
pthread_attr_getschedpolicy(), set and get the attribute in the attr
argument related to the scheduling policy. The value for the aforemen‐
tioned attribute can be SCHED_FIFO, SCHED_RR and SCHED_OTHER.
RETURN VALUES
If successful, these functions return 0. Otherwise, an error number is
returned to indicate the error. pthread_attr_getschedpolicy(), on suc‐
cess, will copy the value of the thread's scheduling policy attribute to
the location pointed to by the second function parameter.
ERRORSpthread_attr_getschedpolicy() will fail if:
[EINVAL] Invalid value for attr.
pthread_attr_setschedpolicy() will fail if:
[EINVAL] Invalid value for attr.
[ENOTSUP] Invalid or unsupported value for policy.
SEE ALSOpthread_create(3), pthread_attr_init(3), pthread_attr_setschedparam(3),
pthread_attr_setinheritsched(3)STANDARDSpthread_attr_setschedpolicy(), pthread_attr_getschedpolicy() conform to
Version 2 of the Single UNIX Specification (“SUSv2”)
BSD December 31, 2007 BSD