POSIX_SPAWNATTR_SETSCHEDPOLICY(3) Library Functions Manual POSIX_SPAWNATTR_SETSCHEDPOLICY(3)

NAME

posix_spawnattr_getschedpolicy posix_spawnattr_setschedpolicy — get and set the spawn-schedpolicy attribute of a spawn attributes object (ADVANCED REALTIME)

SYNOPSIS

[SPN PS]
#include <spawn.h>
#include <sched.h>

int posix_spawnattr_getschedpolicy(const posix_spawnattr_t *
       restrict attr, int *restrict schedpolicy);
int posix_spawnattr_setschedpolicy(posix_spawnattr_t *attr,
       int schedpolicy);

DESCRIPTION

The posix_spawnattr_getschedpolicy () function shall obtain the value of the spawn-schedpolicy attribute from the attributes object referenced by attr.

The posix_spawnattr_setschedpolicy () function shall set the spawn-schedpolicy attribute in an initialized attributes object referenced by attr.

The spawn-schedpolicy attribute represents the scheduling policy to be assigned to the new process image in a spawn operation (if POSIX_SPAWN_SETSCHEDULER is set in the spawn-flags attribute). The default value of this attribute is unspecified.

RETURN VALUE

Upon successful completion, posix_spawnattr_getschedpolicy () shall return zero and store the value of the spawn-schedpolicy attribute of attr into the object referenced by the schedpolicy parameter; otherwise, an error number shall be returned to indicate the error.

Upon successful completion, posix_spawnattr_setschedpolicy () shall return zero; otherwise, an error number shall be returned to indicate the error.