homework-jianmu/source/dnode/vnode/src/inc/metaTtl.h

104 lines
2.4 KiB
C

/*
* 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_VNODE_TTL_H_
#define _TD_VNODE_TTL_H_
#include "taosdef.h"
#include "thash.h"
#include "tdb.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef enum DirtyEntryType {
ENTRY_TYPE_DEL = 1,
ENTRY_TYPE_UPSERT = 2,
} DirtyEntryType;
typedef struct STtlManger {
TdThreadRwlock lock;
TTB* pOldTtlIdx; // btree<{deleteTime, tuid}, NULL>
SHashObj* pTtlCache; // key: tuid, value: {ttl, ctime}
SHashObj* pDirtyUids; // dirty tuid
TTB* pTtlIdx; // btree<{deleteTime, tuid}, ttl>
char* logPrefix;
} STtlManger;
typedef struct {
int64_t ttlDays;
int64_t changeTimeMs;
} STtlCacheEntry;
typedef struct {
DirtyEntryType type;
} STtlDirtyEntry;
typedef struct {
int64_t deleteTimeSec;
tb_uid_t uid;
} STtlIdxKey;
typedef struct {
int64_t deleteTimeMs;
tb_uid_t uid;
} STtlIdxKeyV1;
typedef struct {
int64_t ttlDays;
} STtlIdxValue;
typedef struct {
tb_uid_t uid;
int64_t changeTimeMs;
} STtlUpdCtimeCtx;
typedef struct {
tb_uid_t uid;
int64_t changeTimeMs;
int64_t ttlDays;
} STtlUpdTtlCtx;
typedef struct {
tb_uid_t uid;
TXN* pTxn;
int64_t ttlDays;
} STtlDelTtlCtx;
int ttlMgrOpen(STtlManger** ppTtlMgr, TDB* pEnv, int8_t rollback, const char* logPrefix);
void ttlMgrClose(STtlManger* pTtlMgr);
int ttlMgrPostOpen(STtlManger* pTtlMgr, void* pMeta);
bool ttlMgrNeedUpgrade(TDB* pEnv);
int ttlMgrUpgrade(STtlManger* pTtlMgr, void* pMeta);
int ttlMgrInsertTtl(STtlManger* pTtlMgr, const STtlUpdTtlCtx* pUpdCtx);
int ttlMgrDeleteTtl(STtlManger* pTtlMgr, const STtlDelTtlCtx* pDelCtx);
int ttlMgrUpdateChangeTime(STtlManger* pTtlMgr, const STtlUpdCtimeCtx* pUpdCtimeCtx);
int ttlMgrFlush(STtlManger* pTtlMgr, TXN* pTxn);
int ttlMgrFindExpired(STtlManger* pTtlMgr, int64_t timePointMs, SArray* pTbUids);
#ifdef __cplusplus
}
#endif
#endif /*_TD_VNODE_TTL_H_*/