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)
