los_sortlink_pri.h

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/* ----------------------------------------------------------------------------
 * Copyright (c) Huawei Technologies Co., Ltd. 2013-2019. All rights reserved.
 * Description: Sortlink Private HeadFile
 * Author: Huawei LiteOS Team
 * Create: 2013-01-01
 * 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 of the copyright holder 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 HOLDER 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.
 * --------------------------------------------------------------------------- */
 
#ifndef _LOS_SORTLINK_PRI_H
#define _LOS_SORTLINK_PRI_H
 
#include "los_typedef.h"
#include "los_list.h"
#include "los_config.h"
 
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
 
/*
 * Sortlink Rollnum Structure:
 *   ------------------------------------------
 *  | 31 | 30 | 29 |.......| 4 | 3 | 2 | 1 | 0 |
 *   ------------------------------------------
 *  |<-High Bits->|<---------Low Bits--------->|
 *
 *  Low Bits  : circles
 *  High Bits : sortlink index
 */
#ifndef LOSCFG_BASE_CORE_USE_SINGLE_LIST
#ifndef LOSCFG_BASE_CORE_USE_MULTI_LIST
#error "NO SORTLIST TYPE SELECTED"
#endif
#endif
 
#ifdef LOSCFG_BASE_CORE_USE_SINGLE_LIST
 
#define OS_TSK_SORTLINK_LOGLEN  0U
#define OS_TSK_SORTLINK_LEN     1U
#define OS_TSK_MAX_ROLLNUM      0xFFFFFFFEU
#define OS_TSK_LOW_BITS_MASK    0xFFFFFFFFU
 
#define SORTLINK_CURSOR_UPDATE(CURSOR)
#define SORTLINK_LISTOBJ_GET(LISTOBJ, SORTLINK)  (LISTOBJ = SORTLINK->sortLink)
 
#define ROLLNUM_SUB(NUM1, NUM2)         ((NUM1) = (ROLLNUM(NUM1) - ROLLNUM(NUM2)))
#define ROLLNUM_ADD(NUM1, NUM2)         ((NUM1) = (ROLLNUM(NUM1) + ROLLNUM(NUM2)))
#define ROLLNUM_DEC(NUM)                ((NUM) = ((NUM) - 1))
#define ROLLNUM(NUM)                    (NUM)
 
#define SET_SORTLIST_VALUE(sortList, value) (((SortLinkList *)(sortList))->idxRollNum = (value))
 
#else
 
#define OS_TSK_HIGH_BITS       3U
#define OS_TSK_LOW_BITS        (32U - OS_TSK_HIGH_BITS)
#define OS_TSK_SORTLINK_LOGLEN OS_TSK_HIGH_BITS
#define OS_TSK_SORTLINK_LEN    (1U << OS_TSK_SORTLINK_LOGLEN)
#define OS_TSK_SORTLINK_MASK   (OS_TSK_SORTLINK_LEN - 1U)
#define OS_TSK_MAX_ROLLNUM     (0xFFFFFFFFU - OS_TSK_SORTLINK_LEN)
#define OS_TSK_HIGH_BITS_MASK  (OS_TSK_SORTLINK_MASK << OS_TSK_LOW_BITS)
#define OS_TSK_LOW_BITS_MASK   (~OS_TSK_HIGH_BITS_MASK)
 
#define SORTLINK_CURSOR_UPDATE(CURSOR)          ((CURSOR) = ((CURSOR) + 1) & OS_TSK_SORTLINK_MASK)
#define SORTLINK_LISTOBJ_GET(LISTOBJ, SORTLINK) ((LISTOBJ) = (SORTLINK)->sortLink + (SORTLINK)->cursor)
 
#define EVALUATE_L(NUM, VALUE) ((NUM) = (((NUM) & OS_TSK_HIGH_BITS_MASK) | (VALUE)))
 
#define EVALUATE_H(NUM, VALUE) ((NUM) = (((NUM) & OS_TSK_LOW_BITS_MASK) | ((VALUE) << OS_TSK_LOW_BITS)))
 
#define ROLLNUM_SUB(NUM1, NUM2)                 ((NUM1) = (((NUM1) & OS_TSK_HIGH_BITS_MASK) | \
                                                (ROLLNUM(NUM1) - ROLLNUM(NUM2))))
 
#define ROLLNUM_ADD(NUM1, NUM2)                 ((NUM1) = (((NUM1) & OS_TSK_HIGH_BITS_MASK) | \
                                                (ROLLNUM(NUM1) + ROLLNUM(NUM2))))
 
#define ROLLNUM_DEC(NUM) ((NUM) = ((NUM) - 1))
 
#define ROLLNUM(NUM) ((NUM) & OS_TSK_LOW_BITS_MASK)
 
#define SORT_INDEX(NUM) ((NUM) >> OS_TSK_LOW_BITS)
 
#define SET_SORTLIST_VALUE(sortList, value) (((SortLinkList *)(sortList))->idxRollNum = (value))
 
#endif
 
typedef struct {
    LOS_DL_LIST sortLinkNode;
    UINT32 idxRollNum;
} SortLinkList;
 
typedef struct {
    LOS_DL_LIST *sortLink;
    UINT16 cursor;
    UINT16 reserved;
} SortLinkAttribute;
 
extern VOID OsSortLinkInit(SortLinkAttribute *sortLinkHeader, LOS_DL_LIST *list);
extern VOID OsAdd2SortLink(const SortLinkAttribute *sortLinkHeader, SortLinkList *sortList);
extern VOID OsDeleteSortLink(const SortLinkAttribute *sortLinkHeader, SortLinkList *sortList);
extern UINT32 OsSortLinkGetNextExpireTime(const SortLinkAttribute *sortLinkHeader);
extern UINT32 OsSortLinkGetTargetExpireTime(const SortLinkAttribute *sortLinkHeader,
                                            const SortLinkList *targetSortList);
extern VOID OsSortLinkUpdateExpireTime(UINT32 sleepTicks, SortLinkAttribute *sortLinkHeader);
extern UINT32 OsSortLinkGetNextTaskExpireTime(UINT32 *taskId, UINTPTR *handler);
extern UINT32 OsSortLinkGetNextSwtmrExpireTime(UINT32 *swtmrId, UINTPTR *handler);
#ifdef __cplusplus
}
#endif /* __cplusplus */
 
#endif /* _LOS_SORTLINK_PRI_H */