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1451bd22
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TDengine
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体验新版 GitCode,发现更多精彩内容 >>
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1451bd22
编写于
6月 11, 2022
作者:
M
Minglei Jin
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feat: the first round lru cache for last/last_row
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include/util/tlrucache.h
include/util/tlrucache.h
+72
-0
source/util/src/tlrucache.c
source/util/src/tlrucache.c
+794
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未找到文件。
include/util/tlrucache.h
0 → 100644
浏览文件 @
1451bd22
/*
* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
*
* This program is free software: you can use, redistribute, and/or modify
* it under the terms of the GNU Affero General Public License, version 3
* or later ("AGPL"), as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _TD_UTIL_LRUCACHE_H_
#define _TD_UTIL_LRUCACHE_H_
#include "thash.h"
#ifdef __cplusplus
extern
"C"
{
#endif
typedef
struct
SLRUCache
SLRUCache
;
typedef
void
(
*
_taos_lru_deleter_t
)(
const
void
*
key
,
size_t
keyLen
,
void
*
value
);
typedef
struct
LRUHandle
{
}
LRUHandle
;
typedef
enum
{
TAOS_LRU_PRIORITY_HIGH
,
TAOS_LRU_PRIORITY_LOW
}
LRUPriority
;
typedef
enum
{
TAOS_LRU_STATUS_OK
,
TAOS_LRU_STATUS_FAIL
,
TAOS_LRU_STATUS_INCOMPLETE
,
TAOS_LRU_STATUS_OK_OVERWRITTEN
}
LRUStatus
;
SLRUCache
*
taosLRUCacheInit
(
size_t
capacity
,
int
numShardBits
,
double
highPriPoolRatio
);
void
taosLRUCacheCleanup
(
SLRUCache
*
cache
);
LRUStatus
taosLRUCacheInsert
(
SLRUCache
*
cache
,
const
void
*
key
,
size_t
keyLen
,
void
*
value
,
size_t
charge
,
_taos_lru_deleter_t
deleter
,
LRUHandle
**
handle
,
LRUPriority
priority
);
LRUHandle
*
taosLRUCacheLookup
(
SLRUCache
*
cache
,
const
void
*
key
,
size_t
keyLen
);
void
taosLRUCacheErase
(
SLRUCache
*
cache
,
const
void
*
key
,
size_t
keyLen
);
void
taosLRUCacheEraseUnrefEntries
(
SLRUCache
*
cache
);
bool
taosLRUCacheRef
(
SLRUCache
*
cache
,
LRUHandle
*
handle
);
bool
taosLRUCacheRelease
(
SLRUCache
*
cache
,
LRUHandle
*
handle
,
bool
eraseIfLastRef
);
void
*
taosLRUCacheValue
(
SLRUCache
*
cache
,
LRUHandle
*
handle
);
size_t
taosLRUCacheGetUsage
(
SLRUCache
*
cache
);
size_t
taosLRUCacheGetPinnedUsage
(
SLRUCache
*
cache
);
void
taosLRUCacheSetCapacity
(
SLRUCache
*
cache
,
size_t
capacity
);
size_t
taosLRUCacheGetCapacity
(
SLRUCache
*
cache
);
void
taosLRUCacheSetStrictCapacity
(
SLRUCache
*
cache
,
bool
strict
);
bool
taosLRUCacheIsStrictCapacity
(
SLRUCache
*
cache
);
#ifdef __cplusplus
}
#endif
#endif // _TD_UTIL_LRUCACHE_H_
source/util/src/tlrucache.c
0 → 100644
浏览文件 @
1451bd22
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