posix_spawnattr_setpgroup()

Set the process group attribute in a spawn attributes object

Synopsis:

#include <spawn.h>

int posix_spawnattr_setpgroup(
       posix_spawnattr_t *attrp,
       pid_t pid);

Arguments:

attrp: A pointer to the spawn attributes object that you want to modify.
pid: The ID of the process group that you want to spawned process to join.

Library:

libc

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

The posix_spawnattr_setpgroup() function sets the process group attribute in the spawn attributes object pointed to by attr. You must have already initialized the spawn attributes object by calling posix_spawnattr_init().

This attribute represents the process group to be joined by the new process image in a spawn operation if POSIX_SPAWN_SETPGROUP is set in the spawn flags; to set this flag, call the POSIX function posix_spawnattr_setflags(), or the QNX Neutrino function posix_spawnattr_setxflags(). The default value of the process group attribute is zero. The default value of the process group attribute is zero. You can use posix_spawnattr_getpgroup(). to retrieve it.

For more information about spawn attributes, see the entry for posix_spawn().

Returns:

EOK: Success.
EINVAL: An argument was invalid.
ENOMEM: There wasn't enough memory available to extend the spawn attributes object.

Classification:

POSIX 1003.1 SPN

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