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posix_spawnattr_setschedparam()

Set the spawn-schedparam attribute of a spawn attributes object

Synopsis:

#include <posix_spawnattr.h>

int posix_spawnattr_setschedparam(
       posix_spawnattr_t *_Restrict attrp,
       const struct sched_param *_Restrict sched_p);

Arguments:

attrp
A spawn attribute object.
sched_param
A pointer to a sched_param structure where the function can store the scheduling parameters.
sched_p
The scheduling parameters to assign 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.

Library:

libc

Use the -l c option to qcc to link against this library. This library is usually included automatically.

Description:

The posix_spawnattr_setschedparam() function sets the spawn-sched_p attribute in an initialized attributes object referenced by attrp.

These functions are part of the Spawn option and don't need to be provided on all implementations.

Returns:

Upon successful completion, posix_spawnattr_setschedparam() returns zero; otherwise, an error number is returned to indicate the error (errno is set).

Errors:

EINVAL
For any invalid parameter.
ENOMEM
Insufficient memory available to create the child process.
EOK
Success.

Classification:

POSIX 1003.1 RTS

Safety:
Cancellation point No
Interrupt handler Yes
Signal handler Yes
Thread Yes

See also:

posix_spawn(), posix_spawn_file_actions_addclose(), posix_spawn_file_actions_adddup2(), posix_spawn_file_actions_addopen(), posix_spawn_file_actions_destroy(), posix_spawn_file_actions_init(), posix_spawnattr_addpartid(), posix_spawnattr_addpartition(), posix_spawnattr_destroy(), posix_spawnattr_getcred(), posix_spawnattr_getflags(), posix_spawnattr_getnode(), posix_spawnattr_getpartid(), posix_spawnattr_getpgroup(), posix_spawnattr_getrunmask(), posix_spawnattr_getschedparam(), posix_spawnattr_getschedpolicy(), posix_spawnattr_getsigdefault(), posix_spawnattr_getsigignore(), posix_spawnattr_getsigmask(), posix_spawnattr_getstackmax(), posix_spawnattr_getxflags(), posix_spawnattr_init(), posix_spawnattr_setcred(), posix_spawnattr_setflags(), posix_spawnattr_setnode(), posix_spawnattr_setpgroup(), posix_spawnattr_setrunmask(), posix_spawnattr_setschedpolicy(), posix_spawnattr_setsigdefault(), posix_spawnattr_setsigignore(), posix_spawnattr_setsigmask(), posix_spawnattr_setstackmax(), posix_spawnattr_setxflags(), posix_spawnp()


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