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/****************************************************************************
* libc/string/lib_psfa_destroy.c
*
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdlib.h>
#include <spawn.h>
#include <assert.h>
#include "spawn/spawn.h"
/****************************************************************************
* Global Functions
****************************************************************************/
/****************************************************************************
* Name: posix_spawn_file_actions_destroy
*
* Description:
* The posix_spawn_file_actions_destroy() function destroys the object
* referenced by file_actions which was previously intialized by
* posix_spawn_file_actions_init(), returning any resources obtained at the
* time of initialization to the system for subsequent reuse. A
* posix_spawn_file_actions_t may be reinitialized after having been
* destroyed, but must not be reused after destruction, unless it has been
* reinitialized.
*
* Input Parameters:
* file_actions - The posix_spawn_file_actions_t to be destroyed.
*
* Returned Value:
* On success, these functions return 0; on failure they return an error
* number from <errno.h>.
*
****************************************************************************/
int posix_spawn_file_actions_destroy(FAR posix_spawn_file_actions_t *file_actions)
{
FAR struct spawn_general_file_action_s *curr;
FAR struct spawn_general_file_action_s *next;
DEBUGASSERT(file_actions);
/* Destroy each file action, one at a time */
for (curr = (FAR struct spawn_general_file_action_s *)*file_actions;
curr;
curr = next)
{
/* Get the pointer to the next element before destroying the current one */
next = curr->flink;
free(curr);
}
/* Mark the list empty */
*file_actions = NULL;
return OK;
}
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