PTHREAD_SCHEDPARAM(3) BSD Programmer's Manual PTHREAD_SCHEDPARAM(3)NAME
pthread_getschedparam, pthread_setschedparam - get/set pthread scheduling
parameters
SYNOPSIS
#include <pthread.h>
#include <sched.h>
int
pthread_getschedparam(pthread_t thread, int *policy,
struct sched_param *param);
int
pthread_setschedparam(pthread_t thread, int policy,
const struct sched_param *param);
DESCRIPTION
This interface is defined by IEEE Std1003.1c (``POSIX'').
The pthread_getschedparam() and pthread_setschedparam() functions dynami-
cally retrieve and establish the scheduling parameters for the thread
specified by the thread ID thread. The policy field should be a schedul-
ing policy as defined in sched.h. Currently SCHED_RR, SCHED_FIFO, and
SCHED_OTHER are defined for use. Currently the only valid field in param
is sched_priority.
RETURN VALUES
Upon successful completion, the pthread_getschedparam and
pthread_setschedparam functions both return 0. A non-zero result indi-
cates that an error occurred.
ERRORS
The pthread_getschedparam and pthread_setschedparam functions may fail
and return the following error:
[EINVAL] The value of a function argument is invalid.
SEE ALSOpthreads(3), pthread_attr(3), pthread_create(3),
pthread_attr_getschedparam(3), pthread_attr_setschedparam(3)STANDARDS
The pthread_getschedparam and pthread_setschedparam functions conform to
IEEE Std1003.1c (``POSIX'').
HISTORY
The pthread_getschedparam and pthread_setschedparam functions first ap-
peared in BSD/OS 3.0.
4th Berkeley Distribution June 3, 1996 1
