NAME

posix_spawn_file_actions_destroy, posix_spawn_file_actions_init — destroy and initialize spawn file actions object (ADVANCED REALTIME)

SYNOPSIS

[SPN] #include <spawn.h>

int posix_spawn_file_actions_destroy(posix_spawn_file_actions_t
       *file_actions);
int posix_spawn_file_actions_init(posix_spawn_file_actions_t
       *file_actions);

DESCRIPTION

The posix_spawn_file_actions_destroy() function shall destroy the object referenced by file_actions; the object becomes, in effect, uninitialized. An implementation may cause posix_spawn_file_actions_destroy() to set the object referenced by file_actions to an invalid value. A destroyed spawn file actions object can be reinitialized using posix_spawn_file_actions_init(); the results of otherwise referencing the object after it has been destroyed are undefined.

The posix_spawn_file_actions_init() function shall initialize the object referenced by file_actions to contain no file actions for posix_spawn() or posix_spawnp() to perform.

A spawn file actions object is as defined in posix_spawn_file_actions_addclose.

The effect of initializing an already initialized spawn file actions object is undefined.

RETURN VALUE

Upon successful completion, these functions shall return zero; otherwise, an error number shall be returned to indicate the error.

ERRORS

The posix_spawn_file_actions_init() function shall fail if:

[ENOMEM]

Insufficient memory exists to initialize the spawn file actions object.

The posix_spawn_file_actions_destroy() function may fail if:

[EINVAL]

The value specified by file_actions is invalid.

EXAMPLES

None.

APPLICATION USAGE

These functions are part of the Spawn option and need not be provided on all implementations.

RATIONALE

Refer to the RATIONALE section in posix_spawn_file_actions_addclose.

FUTURE DIRECTIONS

None.

SEE ALSO

posix_spawn, posix_spawn_file_actions_addclose

XBD <spawn.h>

CHANGE HISTORY

First released in Issue 6. Derived from IEEE Std 1003.1d-1999.

In the SYNOPSIS, the inclusion of <sys/types.h> is no longer required.