PTHREAD_SCHEDPARAM(3) OpenBSD Programmer's Manual PTHREAD_SCHEDPARAM(3)NAME
pthread_setschedparam, pthread_getschedparam - thread scheduling
parameter manipulation
SYNOPSIS
#include <pthread.h>
int
pthread_setschedparam(pthread_t thread, int policy, const struct
sched_param *param);
int
pthread_getschedparam(pthread_t thread, int *policy, struct sched_param
*param);
DESCRIPTION
The pthread_setschedparam() and pthread_getschedparam() functions set and
get the scheduling parameters of individual threads. The scheduling
policy for a thread can either be SCHED_FIFO (first in, first out) or
SCHED_RR (round-robin). The thread priority (accessed via
param->sched_priority) must be within the range returned by the
sched_get_priority_min() and sched_get_priority_max() functions.
RETURN VALUES
If successful, these functions return 0. Otherwise, an error number is
returned to indicate the error.
ERRORSpthread_setschedparam() will fail if:
[EINVAL] Invalid value for policy.
[ENOTSUP] Invalid value for scheduling parameters.
[ESRCH] Non-existent thread thread.
pthread_getschedparam() will fail if:
[ESRCH] Non-existent thread thread.
SEE ALSOsched_get_priority_max(3)STANDARDSpthread_setschedparam() and pthread_getschedparam() conform to Version 2
of the Single UNIX Specification
OpenBSD 4.9 November 7, 2010 OpenBSD 4.9