source: libcf/trunk/src/cf_queue.c@ 109

/**
 * @file    cf_queue.c
 * @author  myusgun <myusgun@gmail.com>
 */
#include "cf_queue.h"
#include "cf_list.h"
#include "cf_error.h"

#include <stdio.h>

int
CF_Queue_CreateCtx (CF_Queue_Ctx * ctx)
{
    return CF_List_CreateCtx ((CF_List_Ctx *) ctx);
}

int
CF_Queue_DestroyCtx (CF_Queue_Ctx ctx)
{
    return CF_List_DestroyCtx (ctx);
}

int
CF_Queue_Put (CF_Queue_Ctx  ctx,
              const void    * element)
{
    int             result = 0;
    CF_List_Ctx     list = (CF_List_Ctx) ctx;
    CF_Traverser    traverser = NULL;

    result = CF_List_Rear (list, &traverser);
    if (result < 0)
        return result;

    return CF_List_Insert (list, traverser, CF_DIRECTION_AFTER, element);
}

int
CF_Queue_Get (CF_Queue_Ctx  ctx,
              void          ** element)
{
    int         result = 0;
    CF_List_Ctx list = (CF_List_Ctx) ctx;
    CF_Traverser    traverser = NULL;

    result = CF_Queue_Front (ctx, element);
    if (result < 0)
        return result;

    result = CF_List_Front (list, &traverser);
    if (result < 0)
        return result;

    return CF_List_Remove (ctx, &traverser);
}

int
CF_Queue_Front (CF_Queue_Ctx    ctx,
                void            ** element)
{
    int             result = 0;
    CF_List_Ctx     list = (CF_List_Ctx) ctx;
    CF_Traverser    traverser = NULL;

    result = CF_List_Front (list, &traverser);
    if (result < 0)
        return result;

    return CF_List_GetElement (traverser, element);
}

int
CF_Queue_GetSize (CF_Queue_Ctx ctx)
{
    return CF_List_GetSize ((CF_List_Ctx) ctx);
}