POSIX_SPAWNATTR_GETSCHEDPOLICY(3C) Standard C Library Functions

NAME

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

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.

ATTRIBUTES

See attributes(7) for descriptions of the following attributes:


+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|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)

January 30, 2004
POSIX_SPAWNATTR_GETSCHEDPOLICY(3C)