Set the POSIX flags and the QNX Neutrino extended flags in a spawn attributes object
Synopsis:
#include <spawn.h>
int posix_spawnattr_setxflags(
posix_spawnattr_t *attrp,
uint32_t flags);
Arguments:
- attrp
- A pointer to the spawn attributes object that you want to modify.
- flags
- A bitwise OR of the flags you want to store in the spawn attributes.
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_ALIGN_DEFAULT
- POSIX_SPAWN_ALIGN_FAULT
- POSIX_SPAWN_ALIGN_NOFAULT
- POSIX_SPAWN_ASLR_INVERT — we recommend that you use
posix_spawnattr_setaslr()
instead of this flag
- POSIX_SPAWN_CHECK_SCRIPT
- POSIX_SPAWN_CRITICAL (QNX Neutrino 7.0.4 or later)
- POSIX_SPAWN_DEBUG
- POSIX_SPAWN_EXEC
- POSIX_SPAWN_EXPLICIT_CPU
- POSIX_SPAWN_HOLD
- POSIX_SPAWN_NEWAPP
- POSIX_SPAWN_NOZOMBIE
- POSIX_SPAWN_SEARCH_PATH
- POSIX_SPAWN_SETASID (QNX Neutrino 7.0.4 or later)
- POSIX_SPAWN_SETCRED
- POSIX_SPAWN_SETCWD (QNX Neutrino 7.1 or later)
- POSIX_SPAWN_SETND
- POSIX_SPAWN_SETSID
- POSIX_SPAWN_SETSIGIGN
- POSIX_SPAWN_SETSTACKMAX
- POSIX_SPAWN_SETTYPEID (QNX Neutrino 7.0 or later)
- POSIX_SPAWN_TCSETPGROUP
Library:
libc
Use the -l c option to
qcc
to link against this library. This library is usually included automatically.
Description:
The posix_spawnattr_setxflags() function stores the POSIX flags and
QNX Neutrino extended flags in the spawn attributes object
pointed to by attrp, overwriting any previously saved flags.
You must have already initialized the spawn attributes object by calling
posix_spawnattr_init().
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().
Returns:
- EOK
- Success.
- EINVAL
- An argument was invalid.
Classification:
QNX Neutrino
| Safety: |
|
| Cancellation point |
No |
| Interrupt handler |
No |
| Signal handler |
No |
| Thread |
Yes |