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implement new posix_spawn flag POSIX_SPAWN_SETSID

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this functionality has been adopted for inclusion in the next issue of
POSIX as the result of Austin Group issue #1044.

based on patch by Daurnimator.
This commit is contained in:
Rich Felker 2017-04-22 18:39:40 -04:00
parent 58e2396a9a
commit bb439bb171
2 changed files with 5 additions and 0 deletions
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1
include/spawn.h
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@ -21,6 +21,7 @@ struct sched_param;
#define POSIX_SPAWN_SETSIGMASK 8
#define POSIX_SPAWN_SETSCHEDPARAM 16
#define POSIX_SPAWN_SETSCHEDULER 32
#define POSIX_SPAWN_SETSID 128
typedef struct {
int __flags;

4
src/process/posix_spawn.c
View File

@ -73,6 +73,10 @@ static int child(void *args_vp)
__libc_sigaction(i, &sa, 0);
}
if (attr->__flags & POSIX_SPAWN_SETSID)
if ((ret=__syscall(SYS_setsid)) < 0)
goto fail;
if (attr->__flags & POSIX_SPAWN_SETPGROUP)
if ((ret=__syscall(SYS_setpgid, 0, attr->__pgrp)))
goto fail;