homework-jianmu/source/dnode/mnode/impl/inc/mndOffset.h

45 lines
1.4 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_MND_OFFSET_H_
#define _TD_MND_OFFSET_H_
#include "mndInt.h"
#ifdef __cplusplus
extern "C" {
#endif
int32_t mndInitOffset(SMnode *pMnode);
void mndCleanupOffset(SMnode *pMnode);
SMqOffsetObj *mndAcquireOffset(SMnode *pMnode, const char *key);
void mndReleaseOffset(SMnode *pMnode, SMqOffsetObj *pOffset);
SSdbRaw *mndOffsetActionEncode(SMqOffsetObj *pOffset);
SSdbRow *mndOffsetActionDecode(SSdbRaw *pRaw);
int32_t mndCreateOffsets(STrans *pTrans, const char *cgroup, const char *topicName, const SArray *vgs);
static FORCE_INLINE int32_t mndMakePartitionKey(char *key, const char *cgroup, const char *topicName, int32_t vgId) {
return snprintf(key, TSDB_PARTITION_KEY_LEN, "%d:%s:%s", vgId, cgroup, topicName);
}
#ifdef __cplusplus
}
#endif
#endif /*_TD_MND_OFFSET_H_*/