1 /*
2 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
3 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this list of
9 * conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
12 * of conditions and the following disclaimer in the documentation and/or other materials
13 * provided with the distribution.
14 *
15 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
16 * to endorse or promote products derived from this software without specific prior written
17 * permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #ifndef _LOS_SORTLINK_H
33 #define _LOS_SORTLINK_H
34
35 #include "los_compiler.h"
36 #include "los_list.h"
37
38 #ifdef __cplusplus
39 #if __cplusplus
40 extern "C" {
41 #endif /* __cplusplus */
42 #endif /* __cplusplus */
43
44 typedef enum {
45 OS_SORT_LINK_TASK = 1,
46 OS_SORT_LINK_SWTMR = 2,
47 } SortLinkType;
48
49 typedef struct {
50 LOS_DL_LIST sortLinkNode;
51 UINT64 responseTime;
52 } SortLinkList;
53
54 typedef struct {
55 LOS_DL_LIST sortLink;
56 } SortLinkAttribute;
57
58 extern SortLinkAttribute g_taskSortLink;
59 extern SortLinkAttribute g_swtmrSortLink;
60
61 #define OS_SORT_LINK_INVALID_TIME ((UINT64)-1)
62 #define SET_SORTLIST_VALUE(sortList, value) (((SortLinkList *)(sortList))->responseTime = (value))
63 #define GET_SORTLIST_VALUE(sortList) (((SortLinkList *)(sortList))->responseTime)
64
65 #define OS_SORT_LINK_UINT64_MAX ((UINT64)-1)
66
OsSortLinkGetRemainTime(UINT64 currTime,const SortLinkList * targetSortList)67 STATIC INLINE UINT64 OsSortLinkGetRemainTime(UINT64 currTime, const SortLinkList *targetSortList)
68 {
69 if (currTime >= targetSortList->responseTime) {
70 return 0;
71 }
72 return (targetSortList->responseTime - currTime);
73 }
74
OsDeleteNodeSortLink(SortLinkList * sortList)75 STATIC INLINE VOID OsDeleteNodeSortLink(SortLinkList *sortList)
76 {
77 LOS_ListDelete(&sortList->sortLinkNode);
78 SET_SORTLIST_VALUE(sortList, OS_SORT_LINK_INVALID_TIME);
79 }
80
GetSortLinkNextExpireTime(SortLinkAttribute * sortHeader,UINT64 startTime,UINT32 tickPrecision)81 STATIC INLINE UINT64 GetSortLinkNextExpireTime(SortLinkAttribute *sortHeader, UINT64 startTime, UINT32 tickPrecision)
82 {
83 LOS_DL_LIST *head = &sortHeader->sortLink;
84 LOS_DL_LIST *list = head->pstNext;
85
86 if (LOS_ListEmpty(head)) {
87 return OS_SORT_LINK_UINT64_MAX - tickPrecision;
88 }
89
90 SortLinkList *listSorted = LOS_DL_LIST_ENTRY(list, SortLinkList, sortLinkNode);
91 if (listSorted->responseTime <= (startTime + tickPrecision)) {
92 return (startTime + tickPrecision);
93 }
94
95 return listSorted->responseTime;
96 }
97
OsGetNextExpireTime(UINT64 startTime,UINT32 tickPrecision)98 STATIC INLINE UINT64 OsGetNextExpireTime(UINT64 startTime, UINT32 tickPrecision)
99 {
100 UINT64 taskExpireTime = GetSortLinkNextExpireTime(&g_taskSortLink, startTime, tickPrecision);
101 UINT64 swtmrExpireTime = GetSortLinkNextExpireTime(&g_swtmrSortLink, startTime, tickPrecision);
102 return (taskExpireTime < swtmrExpireTime) ? taskExpireTime : swtmrExpireTime;
103 }
104
105 SortLinkAttribute *OsGetSortLinkAttribute(SortLinkType type);
106 UINT32 OsSortLinkInit(SortLinkAttribute *sortLinkHeader);
107 VOID OsAdd2SortLink(SortLinkList *node, UINT64 startTime, UINT32 waitTicks, SortLinkType type);
108 VOID OsDeleteSortLink(SortLinkList *node);
109 UINT64 OsSortLinkGetTargetExpireTime(UINT64 currTime, const SortLinkList *targetSortList);
110 UINT64 OsSortLinkGetNextExpireTime(const SortLinkAttribute *sortLinkHeader);
111
112 #ifdef __cplusplus
113 #if __cplusplus
114 }
115 #endif /* __cplusplus */
116 #endif /* __cplusplus */
117
118 #endif /* _LOS_SORTLINK_H */
119