POSIX_SPAWNATTR_GETSCHEDPARAM(3C) Standard C Library Functions POSIX_SPAWNATTR_GETSCHEDPARAM(3C)

posix_spawnattr_getschedparam, posix_spawnattr_setschedparam — get and set spawn-schedparam attribute of spawn attributes object

Standard C Library (libc, -lc)

#include <spawn.h>
#include <sched.h>

int
posix_spawnattr_getschedparam(const posix_spawnattr_t *restrict attr, struct sched_param *restrict schedparam);

int
posix_spawnattr_setschedparam(posix_spawnattr_t *restrict attr, const struct sched_param *restrict schedparam);

The () function obtains the value of the spawn-schedparam attribute from the attributes object referenced by attr.

The () function sets the spawn-schedparam attribute in an initialized attributes object referenced by attr.

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

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

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

These functions may fail if:

The value specified by attr is invalid.

The posix_spawnattr_setschedparam() function may fail if:

The value of the attribute being set is not valid.

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

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

July 4, 2026 OmniOS