xref: /freebsd-11-stable/sys/contrib/ncsw/etc/list.c

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 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 *
 * ALTERNATIVELY, this software may be distributed under the terms of the
 * GNU General Public License ("GPL") as published by the Free Software
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/**************************************************************************//**

 @File          list.c

 @Description   Implementation of list.
*//***************************************************************************/
#include "std_ext.h"
#include "list_ext.h"


void LIST_Append(t_List *p_NewList, t_List *p_Head)
{
    t_List *p_First = NCSW_LIST_FIRST(p_NewList);

    if (p_First != p_NewList)
    {
        t_List *p_Last  = LIST_LAST(p_NewList);
        t_List *p_Cur   = NCSW_LIST_NEXT(p_Head);

        NCSW_LIST_PREV(p_First) = p_Head;
        NCSW_LIST_FIRST(p_Head) = p_First;
        NCSW_LIST_NEXT(p_Last)  = p_Cur;
        LIST_LAST(p_Cur)   = p_Last;
    }
}


int LIST_NumOfObjs(t_List *p_List)
{
    t_List *p_Tmp;
    int    numOfObjs = 0;

    if (!LIST_IsEmpty(p_List))
        LIST_FOR_EACH(p_Tmp, p_List)
            numOfObjs++;

    return numOfObjs;
}