NAME

posix_spawnattr_getschedpolicy, posix_spawnattr_setschedpolicy — get and set spawn-schedpolicy attribute of spawn attributes object

LIBRARY

Standard C Library (libc, -lc)

SYNOPSIS

#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 obtains the value of the spawn-schedpolicy attribute from the attributes object referenced by attr.

The posix_spawnattr_setschedpolicy() function sets 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 VALUES

Upon successful completion, posix_spawnattr_getschedpolicy() returns 0 and stores the value of the spawn-schedpolicy attribute of attr into the object referenced by the schedpolicy parameter. Otherwise, an error number is returned to indicate the error.

Upon successful completion, posix_spawnattr_setschedpolicy() returns 0. Otherwise, an error number is returned to indicate the error.

ERRORS

These functions may fail if:

EINVAL

The value specified by attr is invalid.

The posix_spawnattr_setschedpolicy() function may fail if:

EINVAL

The value of the attribute being set is not valid.

INTERFACE STABILITY

Standard

MT-LEVEL

MT-Safe

SEE ALSO

posix_spawn(3C), posix_spawnattr_destroy(3C), posix_spawnattr_getflags(3C), posix_spawnattr_getpgroup(3C), posix_spawnattr_getschedparam(3C), posix_spawnattr_getsigdefault(3C), posix_spawnattr_getsigmask(3C), attributes(7), standards(7)

STANDARDS

The posix_spawnattr_getschedpolicy() and posix_spawnattr_setschedpolicy() functions conform to IEEE Std 1003.1-2001 (“POSIX.1”).