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Caution: This version of this document is no longer maintained. For the latest documentation, see http://www.qnx.com/developers/docs.

pthread_setschedparam()

Set thread scheduling parameters

Synopsis:

#include <pthread.h>

int pthread_setschedparam(
               pthread_t thread,
               int policy,
               const struct sched_param *param );

Arguments:

thread
The ID of the thread that you want to get the scheduling parameters for. You can get a thread ID by calling pthread_create() or pthread_self().
policy
The new scheduling policy; one of:

For more information, see "Thread scheduling" in the QNX Neutrino Microkernel chapter of the System Architecture guide.

param
A pointer to a sched_param structure that specifies the scheduling parameters that you want to use.

Library:

libc

Use the -l c option to qcc to link against this library. This library is usually included automatically.

Description:

The pthread_setschedparam() function sets the scheduling policy and associated scheduling parameters of thread thread to the values specified in policy and param.

Returns:

EOK
Success.
EINVAL
Invalid scheduling policy policy or parameters param.
ENOTSUP
Unsupported scheduling policy policy or parameters param.
EPERM
Insufficient privilege to modify scheduling policy policy or parameters param.
ESRCH
Invalid thread ID thread.

Classification:

POSIX 1003.1 THR TPS

Safety:
Cancellation point No
Interrupt handler No
Signal handler Yes
Thread Yes

See also:

pthread_getschedparam(), sched_param


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