diff options
Diffstat (limited to 'nuttx/libc/spawn/lib_psfa_destroy.c')
-rw-r--r-- | nuttx/libc/spawn/lib_psfa_destroy.c | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/nuttx/libc/spawn/lib_psfa_destroy.c b/nuttx/libc/spawn/lib_psfa_destroy.c new file mode 100644 index 000000000..a21886645 --- /dev/null +++ b/nuttx/libc/spawn/lib_psfa_destroy.c @@ -0,0 +1,96 @@ +/**************************************************************************** + * 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 <nuttx/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; +} |