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authorpatacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3>2011-03-30 21:15:57 +0000
committerpatacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3>2011-03-30 21:15:57 +0000
commite503954f9899ad12f55646317e48fad4bf1cbfb2 (patch)
tree6fe69444df4b94dc4864a0b18358cddcb1e156f5 /nuttx/lib/queue/dq_rem.c
parent144c447139eb6739d67c01a446bf00826316f624 (diff)
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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.c84
1 files changed, 84 insertions, 0 deletions
diff --git a/nuttx/lib/queue/dq_rem.c b/nuttx/lib/queue/dq_rem.c
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+/************************************************************
+ * 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;
+}
+