Name

posix_spawn_file_actions_addclose, posix_spawn_file_actions_addopen - addopen or addclose action to the spawn file actions object.

Library

libc.lib

Synopsis

#include <spawn.h>

int posix_spawn_file_actions_addclose(posix_spawn_file_actions_t *file_actions, int fildes);
int posix_spawn_file_actions_addopen(posix_spawn_file_actions_t *file_actions, int fildes,
const char * path, int oflag, mode_t mode);

The posix_spawn_file_actions_addclose will add a close action to the file actions object referenced by file_actions argument. This causes the file descriptor to be closed when a new child process is spawned using this file action object.

The posix_spawn_file_actions_addopen will add a open action to the file action object referenced by file_actions argument. This causes the file named by path argument to be opened when a new child process is spawned using this file action object. If the file was already open, it will be closed before the new file is opened.

The string passed by the path argument will be copied by the posix_spawn_file_actions_addopen function.

Return Values

On success, these functions return 0. On error, they return the error number set to indicate the error.

Errors

These functions fail if:

[EBADF]
The value specified by file is negative, or greater than equal to {OPEN_MAX}.

[EINVAL]
The value specified by file_actions is invalid.

[ENOMEM]
Insufficient memory exists to add to the spawn file actions object.

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