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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-03-30 21:15:57 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-03-30 21:15:57 +0000 |
commit | e503954f9899ad12f55646317e48fad4bf1cbfb2 (patch) | |
tree | 6fe69444df4b94dc4864a0b18358cddcb1e156f5 /nuttx/lib/queue/dq_rem.c | |
parent | 144c447139eb6739d67c01a446bf00826316f624 (diff) | |
download | px4-nuttx-e503954f9899ad12f55646317e48fad4bf1cbfb2.tar.gz px4-nuttx-e503954f9899ad12f55646317e48fad4bf1cbfb2.tar.bz2 px4-nuttx-e503954f9899ad12f55646317e48fad4bf1cbfb2.zip |
Move more files into subdirectories under lib/
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3441 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/lib/queue/dq_rem.c')
-rw-r--r-- | nuttx/lib/queue/dq_rem.c | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/nuttx/lib/queue/dq_rem.c b/nuttx/lib/queue/dq_rem.c new file mode 100644 index 000000000..adf99efed --- /dev/null +++ b/nuttx/lib/queue/dq_rem.c @@ -0,0 +1,84 @@ +/************************************************************ + * lib/queue/dq_rem.c + * + * Copyright (C) 2007, 2011 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * 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. + * + ************************************************************/ + +/************************************************************ + * Compilation Switches + ************************************************************/ + +/************************************************************ + * Included Files + ************************************************************/ + +#include <queue.h> + +/************************************************************ + * Public Functions + ************************************************************/ + +/************************************************************ + * Name: dq_rem + * + * Descripton: + * dq_rem removes 'node' from 'queue' + * + ************************************************************/ + +void dq_rem(FAR dq_entry_t *node, dq_queue_t *queue) +{ + FAR dq_entry_t *prev = node->blink; + FAR dq_entry_t *next = node->flink; + + if (!prev) + { + queue->head = next; + } + else + { + prev->flink = next; + } + + if (!next) + { + queue->tail = prev; + } + else + { + next->blink = prev; + } + + node->flink = NULL; + node->blink = NULL; +} + |