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author | px4dev <px4@purgatory.org> | 2013-01-17 01:00:46 -0800 |
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committer | px4dev <px4@purgatory.org> | 2013-01-17 01:00:46 -0800 |
commit | 1a532d16dd3a90f20c3668b00ea4f3a86ea32c49 (patch) | |
tree | a770db1fe91e5a3c08e4cb03b216ac36c6f7684d /nuttx/libc/spawn/lib_psfa_addaction.c | |
parent | 7d7c352fb44b718cb96096a624a19b5225e39f92 (diff) | |
parent | caeef71797019505fd450b1a0ae573ac5e490c6e (diff) | |
download | px4-firmware-1a532d16dd3a90f20c3668b00ea4f3a86ea32c49.tar.gz px4-firmware-1a532d16dd3a90f20c3668b00ea4f3a86ea32c49.tar.bz2 px4-firmware-1a532d16dd3a90f20c3668b00ea4f3a86ea32c49.zip |
Merge NuttX r5527
Diffstat (limited to 'nuttx/libc/spawn/lib_psfa_addaction.c')
-rw-r--r-- | nuttx/libc/spawn/lib_psfa_addaction.c | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/nuttx/libc/spawn/lib_psfa_addaction.c b/nuttx/libc/spawn/lib_psfa_addaction.c new file mode 100644 index 000000000..3f297d7cf --- /dev/null +++ b/nuttx/libc/spawn/lib_psfa_addaction.c @@ -0,0 +1,91 @@ +/**************************************************************************** + * libc/string/lib_psfa_addaction.c + * + * Copyright (C) 2013 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 <spawn.h> + +#include "spawn/spawn.h" + +/**************************************************************************** + * Global Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: add_file_action + * + * Description: + * Add the file action to the end for the file action list. + * + * Input Parameters: + * file_actions - The head of the file action list. + * entry - The file action to be added + * + * Returned Value: + * None + * + ****************************************************************************/ + +void add_file_action(FAR posix_spawn_file_actions_t *file_actions, + FAR struct spawn_general_file_action_s *entry) +{ + FAR struct spawn_general_file_action_s *prev; + FAR struct spawn_general_file_action_s *next; + + /* Find the end of the list */ + + for (prev = NULL, next = (FAR struct spawn_general_file_action_s *)*file_actions; + next; + prev = next, next = next->flink); + + /* Here next is NULL and prev points to the last entry in the list (or + * is NULL if the list is empty). + */ + + if (prev) + { + prev->flink = entry; + } + else + { + *file_actions = (posix_spawn_file_actions_t)entry; + } + + entry->flink = NULL; +} |