posix_spawnattr_setpgroup()

Set the spawn-pgroup attribute of 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 process group to be joined by the new process image in a spawn operation. The child process's group if you specify POSIX_SPAWN_SETGROUP in the flags member.

Library:

libc

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

Description:

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