xref: /freebsd/sys/contrib/ncsw/etc/ncsw_list.c (revision b9f654b163bce26de79705e77b872427c9f2afa1)
1 /* Copyright (c) 2008-2011 Freescale Semiconductor, Inc.
2  * All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions are met:
6  *     * Redistributions of source code must retain the above copyright
7  *       notice, this list of conditions and the following disclaimer.
8  *     * Redistributions in binary form must reproduce the above copyright
9  *       notice, this list of conditions and the following disclaimer in the
10  *       documentation and/or other materials provided with the distribution.
11  *     * Neither the name of Freescale Semiconductor nor the
12  *       names of its contributors may be used to endorse or promote products
13  *       derived from this software without specific prior written permission.
14  *
15  *
16  * ALTERNATIVELY, this software may be distributed under the terms of the
17  * GNU General Public License ("GPL") as published by the Free Software
18  * Foundation, either version 2 of that License or (at your option) any
19  * later version.
20  *
21  * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
22  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
23  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
24  * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
25  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
26  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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28  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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30  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31  */
32 
33 /**************************************************************************//**
34 
35  @File          list.c
36 
37  @Description   Implementation of list.
38 *//***************************************************************************/
39 #include "std_ext.h"
40 #include "list_ext.h"
41 
42 
43 void NCSW_LIST_Append(t_List *p_NewList, t_List *p_Head)
44 {
45     t_List *p_First = NCSW_LIST_FIRST(p_NewList);
46 
47     if (p_First != p_NewList)
48     {
49         t_List *p_Last  = NCSW_LIST_LAST(p_NewList);
50         t_List *p_Cur   = NCSW_LIST_NEXT(p_Head);
51 
52         NCSW_LIST_PREV(p_First) = p_Head;
53         NCSW_LIST_FIRST(p_Head) = p_First;
54         NCSW_LIST_NEXT(p_Last)  = p_Cur;
55         NCSW_LIST_LAST(p_Cur)   = p_Last;
56     }
57 }
58 
59 
60 int NCSW_LIST_NumOfObjs(t_List *p_List)
61 {
62     t_List *p_Tmp;
63     int    numOfObjs = 0;
64 
65     if (!NCSW_LIST_IsEmpty(p_List))
66         NCSW_LIST_FOR_EACH(p_Tmp, p_List)
67             numOfObjs++;
68 
69     return numOfObjs;
70 }
71