pthread_attr_setschedparam()

Set a thread's scheduling parameters attribute

Synopsis:

#include <pthread.h>
#include <sched.h>

int pthread_attr_setschedparam(
            pthread_attr_t * attr,
            const struct sched_param * param );

Arguments:

attr

A pointer to the pthread_attr_t structure that defines the attributes to use when creating new threads. For more information, see pthread_attr_init().

param

A pointer to a sched_param structure that defines the thread's scheduling parameters.

Library:

libc

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

Description:

The pthread_attr_setschedparam() function sets the thread scheduling parameters attribute in the thread attribute object attr to param.

The thread scheduling parameters are used only if you've set the thread inherit scheduling attribute to PTHREAD_EXPLICIT_SCHED by calling pthread_attr_setinheritsched(). By default, a thread inherits its parent's priority.

Returns:

EOK

Success.

EINVAL

Invalid thread attribute object attr.

ENOTSUP

Invalid thread scheduling parameters attribute param.

Examples:

See the entry for sched_param.

Classification:

POSIX 1003.1 THR

See also:

pthread_attr_getschedparam(), pthread_attr_setinheritsched(), pthread_attr_init(), pthread_create(), sched_param

“Thread scheduling” in the QNX Neutrino Microkernel chapter of the System Architecture guide

“Scheduling algorithms” in the Programming Overview chapter of the QNX Neutrino Programmer's Guide

Processes and Threads chapter of Getting Started with QNX Neutrino