611 lines
20 KiB
C
611 lines
20 KiB
C
/*
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* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
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*
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* This program is free software: you can use, redistribute, and/or modify
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* it under the terms of the GNU Affero General Public License, version 3
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* or later ("AGPL"), as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#define _DEFAULT_SOURCE
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#include "mndTopic.h"
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#include "mndAuth.h"
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#include "mndDb.h"
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#include "mndDnode.h"
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#include "mndMnode.h"
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#include "mndShow.h"
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#include "mndStb.h"
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#include "mndTrans.h"
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#include "mndUser.h"
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#include "mndVgroup.h"
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#include "tname.h"
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#define MND_TOPIC_VER_NUMBER 1
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#define MND_TOPIC_RESERVE_SIZE 64
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static int32_t mndTopicActionInsert(SSdb *pSdb, SMqTopicObj *pTopic);
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static int32_t mndTopicActionDelete(SSdb *pSdb, SMqTopicObj *pTopic);
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static int32_t mndTopicActionUpdate(SSdb *pSdb, SMqTopicObj *pTopic, SMqTopicObj *pNewTopic);
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static int32_t mndProcessCreateTopicReq(SMnodeMsg *pReq);
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static int32_t mndProcessDropTopicReq(SMnodeMsg *pReq);
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static int32_t mndProcessDropTopicInRsp(SMnodeMsg *pRsp);
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static int32_t mndProcessTopicMetaReq(SMnodeMsg *pReq);
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static int32_t mndGetTopicMeta(SMnodeMsg *pReq, SShowObj *pShow, STableMetaRsp *pMeta);
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static int32_t mndRetrieveTopic(SMnodeMsg *pReq, SShowObj *pShow, char *data, int32_t rows);
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static void mndCancelGetNextTopic(SMnode *pMnode, void *pIter);
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int32_t mndInitTopic(SMnode *pMnode) {
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SSdbTable table = {.sdbType = SDB_TOPIC,
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.keyType = SDB_KEY_BINARY,
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.encodeFp = (SdbEncodeFp)mndTopicActionEncode,
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.decodeFp = (SdbDecodeFp)mndTopicActionDecode,
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.insertFp = (SdbInsertFp)mndTopicActionInsert,
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.updateFp = (SdbUpdateFp)mndTopicActionUpdate,
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.deleteFp = (SdbDeleteFp)mndTopicActionDelete};
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mndSetMsgHandle(pMnode, TDMT_MND_CREATE_TOPIC, mndProcessCreateTopicReq);
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mndSetMsgHandle(pMnode, TDMT_MND_DROP_TOPIC, mndProcessDropTopicReq);
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mndSetMsgHandle(pMnode, TDMT_VND_DROP_TOPIC_RSP, mndProcessDropTopicInRsp);
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mndAddShowMetaHandle(pMnode, TSDB_MGMT_TABLE_TP, mndGetTopicMeta);
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mndAddShowRetrieveHandle(pMnode, TSDB_MGMT_TABLE_TP, mndRetrieveTopic);
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mndAddShowFreeIterHandle(pMnode, TSDB_MGMT_TABLE_TP, mndCancelGetNextTopic);
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return sdbSetTable(pMnode->pSdb, table);
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}
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void mndCleanupTopic(SMnode *pMnode) {}
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SSdbRaw *mndTopicActionEncode(SMqTopicObj *pTopic) {
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terrno = TSDB_CODE_OUT_OF_MEMORY;
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int32_t logicalPlanLen = strlen(pTopic->logicalPlan) + 1;
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int32_t physicalPlanLen = strlen(pTopic->physicalPlan) + 1;
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int32_t size = sizeof(SMqTopicObj) + logicalPlanLen + physicalPlanLen + pTopic->sqlLen + MND_TOPIC_RESERVE_SIZE;
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SSdbRaw *pRaw = sdbAllocRaw(SDB_TOPIC, MND_TOPIC_VER_NUMBER, size);
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if (pRaw == NULL) goto TOPIC_ENCODE_OVER;
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int32_t dataPos = 0;
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SDB_SET_BINARY(pRaw, dataPos, pTopic->name, TSDB_TABLE_FNAME_LEN, TOPIC_ENCODE_OVER);
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SDB_SET_BINARY(pRaw, dataPos, pTopic->db, TSDB_DB_FNAME_LEN, TOPIC_ENCODE_OVER);
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SDB_SET_INT64(pRaw, dataPos, pTopic->createTime, TOPIC_ENCODE_OVER);
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SDB_SET_INT64(pRaw, dataPos, pTopic->updateTime, TOPIC_ENCODE_OVER);
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SDB_SET_INT64(pRaw, dataPos, pTopic->uid, TOPIC_ENCODE_OVER);
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SDB_SET_INT64(pRaw, dataPos, pTopic->dbUid, TOPIC_ENCODE_OVER);
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SDB_SET_INT32(pRaw, dataPos, pTopic->version, TOPIC_ENCODE_OVER);
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SDB_SET_INT32(pRaw, dataPos, pTopic->sqlLen, TOPIC_ENCODE_OVER);
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SDB_SET_BINARY(pRaw, dataPos, pTopic->sql, pTopic->sqlLen, TOPIC_ENCODE_OVER);
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SDB_SET_INT32(pRaw, dataPos, logicalPlanLen, TOPIC_ENCODE_OVER);
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SDB_SET_BINARY(pRaw, dataPos, pTopic->logicalPlan, logicalPlanLen, TOPIC_ENCODE_OVER);
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SDB_SET_INT32(pRaw, dataPos, physicalPlanLen, TOPIC_ENCODE_OVER);
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SDB_SET_BINARY(pRaw, dataPos, pTopic->physicalPlan, physicalPlanLen, TOPIC_ENCODE_OVER);
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SDB_SET_RESERVE(pRaw, dataPos, MND_TOPIC_RESERVE_SIZE, TOPIC_ENCODE_OVER);
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SDB_SET_DATALEN(pRaw, dataPos, TOPIC_ENCODE_OVER);
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terrno = TSDB_CODE_SUCCESS;
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TOPIC_ENCODE_OVER:
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if (terrno != TSDB_CODE_SUCCESS) {
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mError("topic:%s, failed to encode to raw:%p since %s", pTopic->name, pRaw, terrstr());
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sdbFreeRaw(pRaw);
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return NULL;
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}
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mTrace("topic:%s, encode to raw:%p, row:%p", pTopic->name, pRaw, pTopic);
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return pRaw;
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}
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SSdbRow *mndTopicActionDecode(SSdbRaw *pRaw) {
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terrno = TSDB_CODE_OUT_OF_MEMORY;
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int8_t sver = 0;
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if (sdbGetRawSoftVer(pRaw, &sver) != 0) goto TOPIC_DECODE_OVER;
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if (sver != MND_TOPIC_VER_NUMBER) {
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terrno = TSDB_CODE_SDB_INVALID_DATA_VER;
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goto TOPIC_DECODE_OVER;
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}
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int32_t size = sizeof(SMqTopicObj);
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SSdbRow *pRow = sdbAllocRow(size);
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if (pRow == NULL) goto TOPIC_DECODE_OVER;
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SMqTopicObj *pTopic = sdbGetRowObj(pRow);
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if (pTopic == NULL) goto TOPIC_DECODE_OVER;
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int32_t len;
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int32_t dataPos = 0;
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SDB_GET_BINARY(pRaw, dataPos, pTopic->name, TSDB_TABLE_FNAME_LEN, TOPIC_DECODE_OVER);
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SDB_GET_BINARY(pRaw, dataPos, pTopic->db, TSDB_DB_FNAME_LEN, TOPIC_DECODE_OVER);
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SDB_GET_INT64(pRaw, dataPos, &pTopic->createTime, TOPIC_DECODE_OVER);
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SDB_GET_INT64(pRaw, dataPos, &pTopic->updateTime, TOPIC_DECODE_OVER);
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SDB_GET_INT64(pRaw, dataPos, &pTopic->uid, TOPIC_DECODE_OVER);
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SDB_GET_INT64(pRaw, dataPos, &pTopic->dbUid, TOPIC_DECODE_OVER);
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SDB_GET_INT32(pRaw, dataPos, &pTopic->version, TOPIC_DECODE_OVER);
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SDB_GET_INT32(pRaw, dataPos, &pTopic->sqlLen, TOPIC_DECODE_OVER);
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pTopic->sql = calloc(pTopic->sqlLen + 1, sizeof(char));
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SDB_GET_BINARY(pRaw, dataPos, pTopic->sql, pTopic->sqlLen, TOPIC_DECODE_OVER);
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SDB_GET_INT32(pRaw, dataPos, &len, TOPIC_DECODE_OVER);
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pTopic->logicalPlan = calloc(len + 1, sizeof(char));
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if (pTopic->logicalPlan == NULL) {
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terrno = TSDB_CODE_OUT_OF_MEMORY;
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goto TOPIC_DECODE_OVER;
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}
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SDB_GET_BINARY(pRaw, dataPos, pTopic->logicalPlan, len, TOPIC_DECODE_OVER);
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SDB_GET_INT32(pRaw, dataPos, &len, TOPIC_DECODE_OVER);
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pTopic->physicalPlan = calloc(len + 1, sizeof(char));
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if (pTopic->physicalPlan == NULL) {
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free(pTopic->logicalPlan);
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terrno = TSDB_CODE_OUT_OF_MEMORY;
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goto TOPIC_DECODE_OVER;
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}
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SDB_GET_BINARY(pRaw, dataPos, pTopic->physicalPlan, len, TOPIC_DECODE_OVER);
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SDB_GET_RESERVE(pRaw, dataPos, MND_TOPIC_RESERVE_SIZE, TOPIC_DECODE_OVER);
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terrno = TSDB_CODE_SUCCESS;
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TOPIC_DECODE_OVER:
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if (terrno != TSDB_CODE_SUCCESS) {
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mError("topic:%s, failed to decode from raw:%p since %s", pTopic->name, pRaw, terrstr());
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tfree(pRow);
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return NULL;
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}
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mTrace("topic:%s, decode from raw:%p, row:%p", pTopic->name, pRaw, pTopic);
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return pRow;
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}
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static int32_t mndTopicActionInsert(SSdb *pSdb, SMqTopicObj *pTopic) {
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mTrace("topic:%s, perform insert action", pTopic->name);
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return 0;
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}
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static int32_t mndTopicActionDelete(SSdb *pSdb, SMqTopicObj *pTopic) {
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mTrace("topic:%s, perform delete action", pTopic->name);
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return 0;
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}
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static int32_t mndTopicActionUpdate(SSdb *pSdb, SMqTopicObj *pOldTopic, SMqTopicObj *pNewTopic) {
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mTrace("topic:%s, perform update action", pOldTopic->name);
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atomic_exchange_32(&pOldTopic->updateTime, pNewTopic->updateTime);
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atomic_exchange_32(&pOldTopic->version, pNewTopic->version);
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taosWLockLatch(&pOldTopic->lock);
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// TODO handle update
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taosWUnLockLatch(&pOldTopic->lock);
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return 0;
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}
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SMqTopicObj *mndAcquireTopic(SMnode *pMnode, char *topicName) {
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SSdb *pSdb = pMnode->pSdb;
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SMqTopicObj *pTopic = sdbAcquire(pSdb, SDB_TOPIC, topicName);
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if (pTopic == NULL && terrno == TSDB_CODE_SDB_OBJ_NOT_THERE) {
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terrno = TSDB_CODE_MND_TOPIC_NOT_EXIST;
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}
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return pTopic;
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}
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void mndReleaseTopic(SMnode *pMnode, SMqTopicObj *pTopic) {
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SSdb *pSdb = pMnode->pSdb;
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sdbRelease(pSdb, pTopic);
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}
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static SDbObj *mndAcquireDbByTopic(SMnode *pMnode, char *topicName) {
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SName name = {0};
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tNameFromString(&name, topicName, T_NAME_ACCT | T_NAME_DB | T_NAME_TABLE);
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char db[TSDB_TABLE_FNAME_LEN] = {0};
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tNameGetFullDbName(&name, db);
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return mndAcquireDb(pMnode, db);
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}
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static SDDropTopicReq *mndBuildDropTopicMsg(SMnode *pMnode, SVgObj *pVgroup, SMqTopicObj *pTopic) {
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int32_t contLen = sizeof(SDDropTopicReq);
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SDDropTopicReq *pDrop = calloc(1, contLen);
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if (pDrop == NULL) {
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terrno = TSDB_CODE_OUT_OF_MEMORY;
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return NULL;
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}
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pDrop->head.contLen = htonl(contLen);
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pDrop->head.vgId = htonl(pVgroup->vgId);
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memcpy(pDrop->name, pTopic->name, TSDB_TABLE_FNAME_LEN);
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pDrop->tuid = htobe64(pTopic->uid);
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return pDrop;
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}
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static int32_t mndCheckCreateTopicReq(SMCreateTopicReq *pCreate) {
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if (pCreate->name[0] == 0 || pCreate->sql == NULL || pCreate->sql[0] == 0) {
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terrno = TSDB_CODE_MND_INVALID_TOPIC_OPTION;
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return -1;
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}
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return 0;
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}
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static int32_t mndCreateTopic(SMnode *pMnode, SMnodeMsg *pReq, SMCreateTopicReq *pCreate, SDbObj *pDb) {
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mDebug("topic:%s to create", pCreate->name);
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SMqTopicObj topicObj = {0};
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tstrncpy(topicObj.name, pCreate->name, TSDB_TOPIC_FNAME_LEN);
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tstrncpy(topicObj.db, pDb->name, TSDB_DB_FNAME_LEN);
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topicObj.createTime = taosGetTimestampMs();
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topicObj.updateTime = topicObj.createTime;
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topicObj.uid = mndGenerateUid(pCreate->name, strlen(pCreate->name));
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topicObj.dbUid = pDb->uid;
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topicObj.version = 1;
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topicObj.sql = pCreate->sql;
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topicObj.physicalPlan = pCreate->physicalPlan;
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topicObj.logicalPlan = pCreate->logicalPlan;
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topicObj.sqlLen = strlen(pCreate->sql);
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STrans *pTrans = mndTransCreate(pMnode, TRN_POLICY_ROLLBACK, TRN_TYPE_CREATE_TOPIC, &pReq->rpcMsg);
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if (pTrans == NULL) {
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mError("topic:%s, failed to create since %s", pCreate->name, terrstr());
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return -1;
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}
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mDebug("trans:%d, used to create topic:%s", pTrans->id, pCreate->name);
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SSdbRaw *pRedoRaw = mndTopicActionEncode(&topicObj);
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if (pRedoRaw == NULL || mndTransAppendRedolog(pTrans, pRedoRaw) != 0) {
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mError("trans:%d, failed to append redo log since %s", pTrans->id, terrstr());
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mndTransDrop(pTrans);
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return -1;
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}
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sdbSetRawStatus(pRedoRaw, SDB_STATUS_READY);
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if (mndTransPrepare(pMnode, pTrans) != 0) {
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mError("trans:%d, failed to prepare since %s", pTrans->id, terrstr());
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mndTransDrop(pTrans);
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return -1;
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}
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mndTransDrop(pTrans);
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return 0;
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}
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static int32_t mndProcessCreateTopicReq(SMnodeMsg *pReq) {
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SMnode *pMnode = pReq->pMnode;
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int32_t code = -1;
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SMqTopicObj *pTopic = NULL;
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SDbObj *pDb = NULL;
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SUserObj *pUser = NULL;
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SMCreateTopicReq createTopicReq = {0};
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if (tDeserializeSMCreateTopicReq(pReq->rpcMsg.pCont, pReq->rpcMsg.contLen, &createTopicReq) != 0) {
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terrno = TSDB_CODE_INVALID_MSG;
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goto CREATE_TOPIC_OVER;
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}
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mDebug("topic:%s, start to create, sql:%s", createTopicReq.name, createTopicReq.sql);
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if (mndCheckCreateTopicReq(&createTopicReq) != 0) {
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mError("topic:%s, failed to create since %s", createTopicReq.name, terrstr());
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goto CREATE_TOPIC_OVER;
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}
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pTopic = mndAcquireTopic(pMnode, createTopicReq.name);
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if (pTopic != NULL) {
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if (createTopicReq.igExists) {
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mDebug("topic:%s, already exist, ignore exist is set", createTopicReq.name);
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code = 0;
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goto CREATE_TOPIC_OVER;
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} else {
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terrno = TSDB_CODE_MND_TOPIC_ALREADY_EXIST;
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goto CREATE_TOPIC_OVER;
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}
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} else if (terrno != TSDB_CODE_MND_TOPIC_NOT_EXIST) {
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goto CREATE_TOPIC_OVER;
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}
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pDb = mndAcquireDbByTopic(pMnode, createTopicReq.name);
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if (pDb == NULL) {
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terrno = TSDB_CODE_MND_DB_NOT_SELECTED;
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goto CREATE_TOPIC_OVER;
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}
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pUser = mndAcquireUser(pMnode, pReq->user);
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if (pUser == NULL) {
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goto CREATE_TOPIC_OVER;
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}
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if (mndCheckWriteAuth(pUser, pDb) != 0) {
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goto CREATE_TOPIC_OVER;
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}
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code = mndCreateTopic(pMnode, pReq, &createTopicReq, pDb);
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if (code == 0) code = TSDB_CODE_MND_ACTION_IN_PROGRESS;
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CREATE_TOPIC_OVER:
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if (code != 0 && code != TSDB_CODE_MND_ACTION_IN_PROGRESS) {
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mError("topic:%s, failed to create since %s", createTopicReq.name, terrstr());
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}
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mndReleaseTopic(pMnode, pTopic);
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mndReleaseDb(pMnode, pDb);
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mndReleaseUser(pMnode, pUser);
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tFreeSMCreateTopicReq(&createTopicReq);
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return code;
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}
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static int32_t mndDropTopic(SMnode *pMnode, SMnodeMsg *pReq, SMqTopicObj *pTopic) {
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STrans *pTrans = mndTransCreate(pMnode, TRN_POLICY_ROLLBACK, TRN_TYPE_DROP_TOPIC, &pReq->rpcMsg);
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if (pTrans == NULL) {
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mError("topic:%s, failed to drop since %s", pTopic->name, terrstr());
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return -1;
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}
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mDebug("trans:%d, used to drop topic:%s", pTrans->id, pTopic->name);
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SSdbRaw *pRedoRaw = mndTopicActionEncode(pTopic);
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if (pRedoRaw == NULL || mndTransAppendRedolog(pTrans, pRedoRaw) != 0) {
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mError("trans:%d, failed to append redo log since %s", pTrans->id, terrstr());
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mndTransDrop(pTrans);
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return -1;
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}
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sdbSetRawStatus(pRedoRaw, SDB_STATUS_DROPPED);
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if (mndTransPrepare(pMnode, pTrans) != 0) {
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mError("trans:%d, failed to prepare since %s", pTrans->id, terrstr());
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mndTransDrop(pTrans);
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return -1;
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}
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mndTransDrop(pTrans);
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return 0;
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}
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static int32_t mndProcessDropTopicReq(SMnodeMsg *pReq) {
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SMnode *pMnode = pReq->pMnode;
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SMDropTopicReq dropReq = {0};
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if (tDeserializeSMDropTopicReq(pReq->rpcMsg.pCont, pReq->rpcMsg.contLen, &dropReq) != 0) {
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terrno = TSDB_CODE_INVALID_MSG;
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return -1;
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}
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mDebug("topic:%s, start to drop", dropReq.name);
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SMqTopicObj *pTopic = mndAcquireTopic(pMnode, dropReq.name);
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if (pTopic == NULL) {
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if (dropReq.igNotExists) {
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mDebug("topic:%s, not exist, ignore not exist is set", dropReq.name);
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return 0;
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} else {
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terrno = TSDB_CODE_MND_TOPIC_NOT_EXIST;
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mError("topic:%s, failed to drop since %s", dropReq.name, terrstr());
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return -1;
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}
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}
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int32_t code = mndDropTopic(pMnode, pReq, pTopic);
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mndReleaseTopic(pMnode, pTopic);
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if (code != 0) {
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terrno = code;
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mError("topic:%s, failed to drop since %s", dropReq.name, terrstr());
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return -1;
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}
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return TSDB_CODE_MND_ACTION_IN_PROGRESS;
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}
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static int32_t mndProcessDropTopicInRsp(SMnodeMsg *pRsp) {
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mndTransProcessRsp(pRsp);
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return 0;
|
|
}
|
|
|
|
static int32_t mndProcessTopicMetaReq(SMnodeMsg *pReq) {
|
|
SMnode *pMnode = pReq->pMnode;
|
|
STableInfoReq infoReq = {0};
|
|
|
|
if (tSerializeSTableInfoReq(pReq->rpcMsg.pCont, pReq->rpcMsg.contLen, &infoReq) != 0) {
|
|
terrno = TSDB_CODE_INVALID_MSG;
|
|
return -1;
|
|
}
|
|
|
|
mDebug("topic:%s, start to retrieve meta", infoReq.tbName);
|
|
|
|
#if 0
|
|
SDbObj *pDb = mndAcquireDbByTopic(pMnode, pInfo->tableFname);
|
|
if (pDb == NULL) {
|
|
terrno = TSDB_CODE_MND_DB_NOT_SELECTED;
|
|
mError("topic:%s, failed to retrieve meta since %s", pInfo->tableFname, terrstr());
|
|
return -1;
|
|
}
|
|
|
|
STopicObj *pTopic = mndAcquireTopic(pMnode, pInfo->tableFname);
|
|
if (pTopic == NULL) {
|
|
mndReleaseDb(pMnode, pDb);
|
|
terrno = TSDB_CODE_MND_INVALID_TOPIC;
|
|
mError("topic:%s, failed to get meta since %s", pInfo->tableFname, terrstr());
|
|
return -1;
|
|
}
|
|
|
|
taosRLockLatch(&pTopic->lock);
|
|
int32_t totalCols = pTopic->numOfColumns + pTopic->numOfTags;
|
|
int32_t contLen = sizeof(STableMetaRsp) + totalCols * sizeof(SSchema);
|
|
|
|
STableMetaRsp *pMeta = rpcMallocCont(contLen);
|
|
if (pMeta == NULL) {
|
|
taosRUnLockLatch(&pTopic->lock);
|
|
mndReleaseDb(pMnode, pDb);
|
|
mndReleaseTopic(pMnode, pTopic);
|
|
terrno = TSDB_CODE_OUT_OF_MEMORY;
|
|
mError("topic:%s, failed to get meta since %s", pInfo->tableFname, terrstr());
|
|
return -1;
|
|
}
|
|
|
|
memcpy(pMeta->topicFname, pTopic->name, TSDB_TABLE_FNAME_LEN);
|
|
pMeta->numOfTags = htonl(pTopic->numOfTags);
|
|
pMeta->numOfColumns = htonl(pTopic->numOfColumns);
|
|
pMeta->precision = pDb->cfg.precision;
|
|
pMeta->tableType = TSDB_SUPER_TABLE;
|
|
pMeta->update = pDb->cfg.update;
|
|
pMeta->sversion = htonl(pTopic->version);
|
|
pMeta->tuid = htonl(pTopic->uid);
|
|
|
|
for (int32_t i = 0; i < totalCols; ++i) {
|
|
SSchema *pSchema = &pMeta->pSchemas[i];
|
|
SSchema *pSrcSchema = &pTopic->pSchema[i];
|
|
memcpy(pSchema->name, pSrcSchema->name, TSDB_COL_NAME_LEN);
|
|
pSchema->type = pSrcSchema->type;
|
|
pSchema->colId = htonl(pSrcSchema->colId);
|
|
pSchema->bytes = htonl(pSrcSchema->bytes);
|
|
}
|
|
taosRUnLockLatch(&pTopic->lock);
|
|
mndReleaseDb(pMnode, pDb);
|
|
mndReleaseTopic(pMnode, pTopic);
|
|
|
|
pReq->pCont = pMeta;
|
|
pReq->contLen = contLen;
|
|
|
|
mDebug("topic:%s, meta is retrieved, cols:%d tags:%d", pInfo->tableFname, pTopic->numOfColumns, pTopic->numOfTags);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
static int32_t mndGetNumOfTopics(SMnode *pMnode, char *dbName, int32_t *pNumOfTopics) {
|
|
SSdb *pSdb = pMnode->pSdb;
|
|
SDbObj *pDb = mndAcquireDb(pMnode, dbName);
|
|
if (pDb == NULL) {
|
|
terrno = TSDB_CODE_MND_DB_NOT_SELECTED;
|
|
return -1;
|
|
}
|
|
|
|
int32_t numOfTopics = 0;
|
|
void *pIter = NULL;
|
|
while (1) {
|
|
SMqTopicObj *pTopic = NULL;
|
|
pIter = sdbFetch(pSdb, SDB_TOPIC, pIter, (void **)&pTopic);
|
|
if (pIter == NULL) break;
|
|
|
|
if (pTopic->dbUid == pDb->uid) {
|
|
numOfTopics++;
|
|
}
|
|
|
|
sdbRelease(pSdb, pTopic);
|
|
}
|
|
|
|
*pNumOfTopics = numOfTopics;
|
|
mndReleaseDb(pMnode, pDb);
|
|
return 0;
|
|
}
|
|
|
|
static int32_t mndGetTopicMeta(SMnodeMsg *pReq, SShowObj *pShow, STableMetaRsp *pMeta) {
|
|
SMnode *pMnode = pReq->pMnode;
|
|
SSdb *pSdb = pMnode->pSdb;
|
|
|
|
if (mndGetNumOfTopics(pMnode, pShow->db, &pShow->numOfRows) != 0) {
|
|
return -1;
|
|
}
|
|
|
|
int32_t cols = 0;
|
|
SSchema *pSchema = pMeta->pSchemas;
|
|
|
|
pShow->bytes[cols] = TSDB_TABLE_NAME_LEN + VARSTR_HEADER_SIZE;
|
|
pSchema[cols].type = TSDB_DATA_TYPE_BINARY;
|
|
strcpy(pSchema[cols].name, "name");
|
|
pSchema[cols].bytes = pShow->bytes[cols];
|
|
cols++;
|
|
|
|
pShow->bytes[cols] = 8;
|
|
pSchema[cols].type = TSDB_DATA_TYPE_TIMESTAMP;
|
|
strcpy(pSchema[cols].name, "create_time");
|
|
pSchema[cols].bytes = pShow->bytes[cols];
|
|
cols++;
|
|
|
|
pShow->bytes[cols] = TSDB_SHOW_SQL_LEN + VARSTR_HEADER_SIZE;
|
|
pSchema[cols].type = TSDB_DATA_TYPE_BINARY;
|
|
strcpy(pSchema[cols].name, "sql");
|
|
pSchema[cols].bytes = pShow->bytes[cols];
|
|
cols++;
|
|
|
|
pMeta->numOfColumns = cols;
|
|
pShow->numOfColumns = cols;
|
|
|
|
pShow->offset[0] = 0;
|
|
for (int32_t i = 1; i < cols; ++i) {
|
|
pShow->offset[i] = pShow->offset[i - 1] + pShow->bytes[i - 1];
|
|
}
|
|
|
|
pShow->numOfRows = sdbGetSize(pSdb, SDB_TOPIC);
|
|
pShow->rowSize = pShow->offset[cols - 1] + pShow->bytes[cols - 1];
|
|
strcpy(pMeta->tbName, mndShowStr(pShow->type));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int32_t mndRetrieveTopic(SMnodeMsg *pReq, SShowObj *pShow, char *data, int32_t rows) {
|
|
SMnode *pMnode = pReq->pMnode;
|
|
SSdb *pSdb = pMnode->pSdb;
|
|
int32_t numOfRows = 0;
|
|
SMqTopicObj *pTopic = NULL;
|
|
int32_t cols = 0;
|
|
char *pWrite;
|
|
char prefix[TSDB_DB_FNAME_LEN] = {0};
|
|
|
|
SDbObj *pDb = mndAcquireDb(pMnode, pShow->db);
|
|
if (pDb == NULL) return 0;
|
|
|
|
tstrncpy(prefix, pShow->db, TSDB_DB_FNAME_LEN);
|
|
strcat(prefix, TS_PATH_DELIMITER);
|
|
int32_t prefixLen = (int32_t)strlen(prefix);
|
|
|
|
while (numOfRows < rows) {
|
|
pShow->pIter = sdbFetch(pSdb, SDB_TOPIC, pShow->pIter, (void **)&pTopic);
|
|
if (pShow->pIter == NULL) break;
|
|
|
|
if (pTopic->dbUid != pDb->uid) {
|
|
if (strncmp(pTopic->name, prefix, prefixLen) != 0) {
|
|
mError("Inconsistent table data, name:%s, db:%s, dbUid:%" PRIu64, pTopic->name, pDb->name, pDb->uid);
|
|
}
|
|
|
|
sdbRelease(pSdb, pTopic);
|
|
continue;
|
|
}
|
|
|
|
cols = 0;
|
|
|
|
char topicName[TSDB_TABLE_NAME_LEN] = {0};
|
|
tstrncpy(topicName, pTopic->name + prefixLen, TSDB_TABLE_NAME_LEN);
|
|
pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
|
|
STR_TO_VARSTR(pWrite, topicName);
|
|
cols++;
|
|
|
|
pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
|
|
*(int64_t *)pWrite = pTopic->createTime;
|
|
cols++;
|
|
|
|
pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
|
|
STR_WITH_MAXSIZE_TO_VARSTR(pWrite, pTopic->sql, pShow->bytes[cols]);
|
|
cols++;
|
|
|
|
numOfRows++;
|
|
sdbRelease(pSdb, pTopic);
|
|
}
|
|
|
|
mndReleaseDb(pMnode, pDb);
|
|
pShow->numOfReads += numOfRows;
|
|
mndVacuumResult(data, pShow->numOfColumns, numOfRows, rows, pShow);
|
|
return numOfRows;
|
|
}
|
|
|
|
static void mndCancelGetNextTopic(SMnode *pMnode, void *pIter) {
|
|
SSdb *pSdb = pMnode->pSdb;
|
|
sdbCancelFetch(pSdb, pIter);
|
|
}
|