homework-jianmu/source/dnode/vnode/src/vnd/vnodeQuery.c

270 lines
7.8 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/>.
*/
#include "vnd.h"
int vnodeQueryOpen(SVnode *pVnode) {
return qWorkerInit(NODE_TYPE_VNODE, TD_VID(pVnode), NULL, (void **)&pVnode->pQuery, &pVnode->msgCb);
}
void vnodeQueryClose(SVnode *pVnode) { qWorkerDestroy((void **)&pVnode->pQuery); }
int vnodeGetTableMeta(SVnode *pVnode, SRpcMsg *pMsg) {
STableInfoReq infoReq = {0};
STableMetaRsp metaRsp = {0};
SMetaReader mer1 = {0};
SMetaReader mer2 = {0};
char tableFName[TSDB_TABLE_FNAME_LEN];
SRpcMsg rpcMsg;
int32_t code = 0;
int32_t rspLen = 0;
void *pRsp = NULL;
SSchemaWrapper schema = {0};
SSchemaWrapper schemaTag = {0};
// decode req
if (tDeserializeSTableInfoReq(pMsg->pCont, pMsg->contLen, &infoReq) != 0) {
code = TSDB_CODE_INVALID_MSG;
goto _exit;
}
metaRsp.dbId = pVnode->config.dbId;
strcpy(metaRsp.tbName, infoReq.tbName);
memcpy(metaRsp.dbFName, infoReq.dbFName, sizeof(metaRsp.dbFName));
sprintf(tableFName, "%s.%s", infoReq.dbFName, infoReq.tbName);
code = vnodeValidateTableHash(pVnode, tableFName);
if (code) {
goto _exit;
}
// query meta
metaReaderInit(&mer1, pVnode->pMeta, 0);
if (metaGetTableEntryByName(&mer1, infoReq.tbName) < 0) {
code = terrno;
goto _exit;
}
metaRsp.tableType = mer1.me.type;
metaRsp.vgId = TD_VID(pVnode);
metaRsp.tuid = mer1.me.uid;
if (mer1.me.type == TSDB_SUPER_TABLE) {
strcpy(metaRsp.stbName, mer1.me.name);
schema = mer1.me.stbEntry.schemaRow;
schemaTag = mer1.me.stbEntry.schemaTag;
metaRsp.suid = mer1.me.uid;
} else if (mer1.me.type == TSDB_CHILD_TABLE) {
metaReaderInit(&mer2, pVnode->pMeta, 0);
if (metaGetTableEntryByUid(&mer2, mer1.me.ctbEntry.suid) < 0) goto _exit;
strcpy(metaRsp.stbName, mer2.me.name);
metaRsp.suid = mer2.me.uid;
schema = mer2.me.stbEntry.schemaRow;
schemaTag = mer2.me.stbEntry.schemaTag;
} else if (mer1.me.type == TSDB_NORMAL_TABLE) {
schema = mer1.me.ntbEntry.schemaRow;
} else {
ASSERT(0);
}
metaRsp.numOfTags = schemaTag.nCols;
metaRsp.numOfColumns = schema.nCols;
metaRsp.precision = pVnode->config.tsdbCfg.precision;
metaRsp.sversion = schema.version;
metaRsp.pSchemas = (SSchema *)taosMemoryMalloc(sizeof(SSchema) * (metaRsp.numOfColumns + metaRsp.numOfTags));
memcpy(metaRsp.pSchemas, schema.pSchema, sizeof(SSchema) * schema.nCols);
if (schemaTag.nCols) {
memcpy(metaRsp.pSchemas + schema.nCols, schemaTag.pSchema, sizeof(SSchema) * schemaTag.nCols);
}
// encode and send response
rspLen = tSerializeSTableMetaRsp(NULL, 0, &metaRsp);
if (rspLen < 0) {
code = TSDB_CODE_INVALID_MSG;
goto _exit;
}
pRsp = rpcMallocCont(rspLen);
if (pRsp == NULL) {
code = TSDB_CODE_OUT_OF_MEMORY;
goto _exit;
}
tSerializeSTableMetaRsp(pRsp, rspLen, &metaRsp);
_exit:
rpcMsg.info = pMsg->info;
rpcMsg.pCont = pRsp;
rpcMsg.contLen = rspLen;
rpcMsg.code = code;
if (code) {
qError("get table %s meta failed cause of %s", infoReq.tbName, tstrerror(code));
}
tmsgSendRsp(&rpcMsg);
taosMemoryFree(metaRsp.pSchemas);
metaReaderClear(&mer2);
metaReaderClear(&mer1);
return TSDB_CODE_SUCCESS;
}
int vnodeGetTableCfg(SVnode *pVnode, SRpcMsg *pMsg) {
STableCfgReq cfgReq = {0};
STableCfgRsp cfgRsp = {0};
SMetaReader mer1 = {0};
SMetaReader mer2 = {0};
char tableFName[TSDB_TABLE_FNAME_LEN];
SRpcMsg rpcMsg;
int32_t code = 0;
int32_t rspLen = 0;
void *pRsp = NULL;
SSchemaWrapper schema = {0};
SSchemaWrapper schemaTag = {0};
// decode req
if (tDeserializeSTableCfgReq(pMsg->pCont, pMsg->contLen, &cfgReq) != 0) {
code = TSDB_CODE_INVALID_MSG;
goto _exit;
}
strcpy(cfgRsp.tbName, cfgReq.tbName);
memcpy(cfgRsp.dbFName, cfgReq.dbFName, sizeof(cfgRsp.dbFName));
sprintf(tableFName, "%s.%s", cfgReq.dbFName, cfgReq.tbName);
code = vnodeValidateTableHash(pVnode, tableFName);
if (code) {
goto _exit;
}
// query meta
metaReaderInit(&mer1, pVnode->pMeta, 0);
if (metaGetTableEntryByName(&mer1, cfgReq.tbName) < 0) {
code = terrno;
goto _exit;
}
cfgRsp.tableType = mer1.me.type;
if (mer1.me.type == TSDB_SUPER_TABLE) {
code = TSDB_CODE_VND_HASH_MISMATCH;
goto _exit;
} else if (mer1.me.type == TSDB_CHILD_TABLE) {
metaReaderInit(&mer2, pVnode->pMeta, 0);
if (metaGetTableEntryByUid(&mer2, mer1.me.ctbEntry.suid) < 0) goto _exit;
strcpy(cfgRsp.stbName, mer2.me.name);
schema = mer2.me.stbEntry.schemaRow;
schemaTag = mer2.me.stbEntry.schemaTag;
cfgRsp.ttl = mer1.me.ctbEntry.ttlDays;
cfgRsp.commentLen = mer1.me.ctbEntry.commentLen;
if (mer1.me.ctbEntry.commentLen > 0) {
cfgRsp.pComment = strdup(mer1.me.ctbEntry.comment);
}
STag *pTag = (STag *)mer1.me.ctbEntry.pTags;
cfgRsp.tagsLen = pTag->len;
cfgRsp.pTags = taosMemoryMalloc(cfgRsp.tagsLen);
memcpy(cfgRsp.pTags, pTag, cfgRsp.tagsLen);
} else if (mer1.me.type == TSDB_NORMAL_TABLE) {
schema = mer1.me.ntbEntry.schemaRow;
cfgRsp.ttl = mer1.me.ntbEntry.ttlDays;
cfgRsp.commentLen = mer1.me.ntbEntry.commentLen;
if (mer1.me.ntbEntry.commentLen > 0) {
cfgRsp.pComment = strdup(mer1.me.ntbEntry.comment);
}
} else {
ASSERT(0);
}
cfgRsp.numOfTags = schemaTag.nCols;
cfgRsp.numOfColumns = schema.nCols;
cfgRsp.pSchemas = (SSchema *)taosMemoryMalloc(sizeof(SSchema) * (cfgRsp.numOfColumns + cfgRsp.numOfTags));
memcpy(cfgRsp.pSchemas, schema.pSchema, sizeof(SSchema) * schema.nCols);
if (schemaTag.nCols) {
memcpy(cfgRsp.pSchemas + schema.nCols, schemaTag.pSchema, sizeof(SSchema) * schemaTag.nCols);
}
// encode and send response
rspLen = tSerializeSTableCfgRsp(NULL, 0, &cfgRsp);
if (rspLen < 0) {
code = TSDB_CODE_INVALID_MSG;
goto _exit;
}
pRsp = rpcMallocCont(rspLen);
if (pRsp == NULL) {
code = TSDB_CODE_OUT_OF_MEMORY;
goto _exit;
}
tSerializeSTableCfgRsp(pRsp, rspLen, &cfgRsp);
_exit:
rpcMsg.info = pMsg->info;
rpcMsg.pCont = pRsp;
rpcMsg.contLen = rspLen;
rpcMsg.code = code;
if (code) {
qError("get table %s cfg failed cause of %s", cfgReq.tbName, tstrerror(code));
}
tmsgSendRsp(&rpcMsg);
tFreeSTableCfgRsp(&cfgRsp);
metaReaderClear(&mer2);
metaReaderClear(&mer1);
return TSDB_CODE_SUCCESS;
}
int32_t vnodeGetLoad(SVnode *pVnode, SVnodeLoad *pLoad) {
pLoad->vgId = TD_VID(pVnode);
pLoad->syncState = syncGetMyRole(pVnode->sync);
pLoad->numOfTables = metaGetTbNum(pVnode->pMeta);
pLoad->numOfTimeSeries = 400;
pLoad->totalStorage = 300;
pLoad->compStorage = 200;
pLoad->pointsWritten = 100;
pLoad->numOfSelectReqs = 1;
pLoad->numOfInsertReqs = 3;
pLoad->numOfInsertSuccessReqs = 2;
pLoad->numOfBatchInsertReqs = 5;
pLoad->numOfBatchInsertSuccessReqs = 4;
return 0;
}
void vnodeGetInfo(SVnode *pVnode, const char **dbname, int32_t *vgId) {
if (dbname) {
*dbname = pVnode->config.dbname;
}
if (vgId) {
*vgId = TD_VID(pVnode);
}
}
// wrapper of tsdb read interface
tsdbReaderT tsdbQueryCacheLast(SVnode *pVnode, SQueryTableDataCond *pCond, STableListInfo* tableList, uint64_t qId,
void *pMemRef) {
#if 0
return tsdbQueryCacheLastT(pVnode->pTsdb, pCond, groupList, qId, pMemRef);
#endif
return 0;
}