PTHREAD_ATTR(3) BSD Library Functions Manual PTHREAD_ATTR(3)NAME
pthread_attr_getinheritsched, pthread_attr_setinheritsched — thread
attribute operations
SYNOPSIS
#include <pthread.h>
int
pthread_attr_getinheritsched(const pthread_attr_t *restrict attr,
int *restrict inheritsched);
int
pthread_attr_setinheritsched(pthread_attr_t *attr, int inheritsched);
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.
One of the thread attributes of interest is the "inheritsched" attribute.
This attribute controls the scheduling policy and related attributes of
the newly created thread. The values of the "inheritsched" attribute can
be either PTHREAD_INHERIT_SCHED or PTHREAD_EXPLICIT_SCHED.
PTHREAD_INHERIT_SCHED
Indicates that the newly created thread should inherit all it's
scheduling related attributes from it's creating thread. It ignores the
values of the relevant attributes within the attr argument.
PTHREAD_EXPLICIT_SCHED
Indicates that the newly created thread should set it's scheduling
related attributes based on attr argument.
The pthread_attr_setinheritsched() functions set the "inheritsched"
attribute within the attr argument to the desired value.
The pthread_attr_getinheritsched() functions copy the value of the
"inheritsched" attribute to the location pointed to by the second func‐
tion parameter.
RETURN VALUES
If successful, these functions return 0. Otherwise, an error number is
returned to indicate the error.
ERRORSpthread_attr_getinheritsched() will fail if:
[EINVAL] Invalid value for attr.
pthread_attr_setinheritsched() will fail if:
[EINVAL] Invalid value for attr.
SEE ALSOpthread_create(3), pthread_attr_init(3), pthread_attr_setschedparam(3)STANDARDSpthread_attr_setinheritsched(), pthread_attr_getinheritsched() conform to
Version 2 of the Single UNIX Specification (“SUSv2”)
BSD December 31, 2007 BSD
