posix_spawnattr_getxflags()

Get the POSIX flags and the QNX Neutrino extended flags from a spawn attributes object

Synopsis:

#include <spawn.h>

int posix_spawnattr_getxflags(
       const posix_spawnattr_t *_Restrict attrp,
       uint32_t *_Restrict flags_p);

Arguments:

attrp: A pointer to the spawn attributes object that you want to query.
flags_p: A pointer to a location where the function can store the flags.

Library:

libc

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

Description:

The posix_spawnattr_getxflags() function retrieves the POSIX flags and QNX Neutrino extended flags from the spawn attributes object pointed to by attrp, and stores them in the object pointed to by flags_p. You must have already initialized the spawn attributes object by calling posix_spawnattr_init().

POSIX defines the following flags:

POSIX_SPAWN_SETPGROUP
POSIX_SPAWN_SETSIGMASK
POSIX_SPAWN_SETSIGDEF
POSIX_SPAWN_SETSCHEDULER
POSIX_SPAWN_SETSCHEDPARAM
POSIX_SPAWN_RESETIDS

QNX Neutrino defines the following extended flags:

POSIX_SPAWN_SETND
POSIX_SPAWN_SETSIGIGN
POSIX_SPAWN_SETSPART
POSIX_SPAWN_EXPLICIT_CPU
POSIX_SPAWN_SETCRED
POSIX_SPAWN_SETSTACKMAX
POSIX_SPAWN_NOZOMBIE
POSIX_SPAWN_HOLD
POSIX_SPAWN_ALIGN_DEFAULT
POSIX_SPAWN_ALIGN_FAULT
POSIX_SPAWN_ALIGN_NOFAULT

These flags indicate which process attributes you want to change in the new process image when you invoke posix_spawn() or posix_spawnp(). For detailed information about the flags, see the entry for posix_spawn().

Note:

The posix_spawnattr_getxflags() function is a QNX Neutrino extension. POSIX specifies the posix_spawnattr_getflags() and posix_spawnattr_setflags() routines, which get and set only the POSIX flags.

Returns:

EOK: Success.
EINVAL: The value specified by attrp or flags_p is invalid.

Classification:

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_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_init(), posix_spawnattr_setcred(), posix_spawnattr_setflags(), posix_spawnattr_setnode(), posix_spawnattr_setpgroup(), posix_spawnattr_setrunmask(), posix_spawnattr_setschedparam(), posix_spawnattr_setschedpolicy(), posix_spawnattr_setsigdefault(), posix_spawnattr_setsigignore(), posix_spawnattr_setsigmask(), posix_spawnattr_setstackmax(), posix_spawnattr_setxflags(), posix_spawnp()