Initialize a spawn attributes object
Synopsis:
#include <spawn.h>
int posix_spawnattr_init( posix_spawnattr_t *attrp );
Arguments:
- attrp
- A pointer to the spawn attributes object that you want to initialize.
Library:
libc
Use the -l c option to
qcc
to link against this library. This library is usually included automatically.
Description:
The posix_spawnattr_init() function initializes the given spawn attributes
object with the default value for all the attributes.
A spawn attributes object is an opaque object of type posix_spawnattr_t (defined in
<spawn.h>) that you can use to modify the behavior of
posix_spawn() or posix_spawnp().
Changes that you make to the spawn attributes object don't affect any processes that you've already spawned.
You can also use this function to reinitialize a spawn attributes object that you've destroyed by
calling
posix_spawnattr_destroy().
Note:
- The posix_spawnattr_destroy() function renders the
posix_spawnattr_t object unusable.
Before you can reuse it (which includes calling
posix_spawnattr_destroy() on an already destroyed object),
you must reinitialize the object with posix_spawnattr_init().
- POSIX indicates that the results of reinitializing an already
initialized posix_spawnattr_t object are undefined.
The QNX Neutrino implementation doesn't support the
reinitialization of a posix_spawnattr_t object without an intervening
destruction of the object. Repeated calls to posix_spawnattr_init()
with the same posix_spawnattr_t object could result in a memory leak.
Returns:
- EOK
- Success.
- ENOMEM
- Insufficient memory exists to initialize the spawn attributes object.
Classification:
POSIX 1003.1 SPN
| Safety: |
|
| Cancellation point |
No |
| Interrupt handler |
Yes |
| Signal handler |
Yes |
| Thread |
Yes |