PTHREAD_ATTR(3) BSD Library Functions Manual PTHREAD_ATTR(3)NAME
pthread_attr_getschedparam, pthread_attr_setschedparam — thread attribute
operations
SYNOPSIS
#include <pthread.h>
int
pthread_attr_getschedparam(const pthread_attr_t *restrict attr,
struct sched_param *restrict param);
int
pthread_attr_setschedparam(pthread_attr_t *restrict attr,
const struct sched_param *restrict param);
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.
pthread_attr_getschedparam() and pthread_attr_setschedparam() get and set
the scheduling parameters within the attr argument. See
/usr/include/sched.h
for the definition of struct sched_param. The sched_priority field of
struct sched_param can be set to SCHED_OTHER, SCHED_FIFO and SCHED_RR.
RETURN VALUES
If successful, these functions return 0. Otherwise, an error number is
returned to indicate the error. pthread_attr_getschedparam(), on suc‐
cess, will copy the value of the thread's scheduling parameter attribute
to the location pointed to by the second function parameter.
ERRORSpthread_attr_getschedparam() will fail if:
[EINVAL] Invalid value for attr.
pthread_attr_setschedparam() will fail if:
[EINVAL] Invalid value for attr.
[ENOTSUP] Invalid value for param.
SEE ALSOpthread_create(3), pthread_attr_init(3), pthread_attr_setinheritsched(3)STANDARDSpthread_attr_setschedparam(), pthread_attr_getschedparam() conform to
Version 2 of the Single UNIX Specification (“SUSv2”)
BSD December 31, 2007 BSD