628 lines
20 KiB
C
628 lines
20 KiB
C
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#include "clientInt.h"
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#include "clientLog.h"
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#include "parser.h"
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#include "planner.h"
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#include "scheduler.h"
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#include "tdef.h"
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#include "tep.h"
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#include "tglobal.h"
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#include "tmsgtype.h"
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#include "tpagedbuf.h"
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#include "tref.h"
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static int32_t initEpSetFromCfg(const char* firstEp, const char* secondEp, SCorEpSet* pEpSet);
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static SMsgSendInfo* buildConnectMsg(SRequestObj* pRequest);
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static void destroySendMsgInfo(SMsgSendInfo* pMsgBody);
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static void setQueryResultFromRsp(SReqResultInfo* pResultInfo, const SRetrieveTableRsp* pRsp);
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static bool stringLengthCheck(const char* str, size_t maxsize) {
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if (str == NULL) {
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return false;
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}
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size_t len = strlen(str);
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if (len <= 0 || len > maxsize) {
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return false;
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}
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return true;
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}
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static bool validateUserName(const char* user) { return stringLengthCheck(user, TSDB_USER_LEN - 1); }
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static bool validatePassword(const char* passwd) { return stringLengthCheck(passwd, TSDB_PASSWORD_LEN - 1); }
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static bool validateDbName(const char* db) { return stringLengthCheck(db, TSDB_DB_NAME_LEN - 1); }
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static char* getClusterKey(const char* user, const char* auth, const char* ip, int32_t port) {
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char key[512] = {0};
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snprintf(key, sizeof(key), "%s:%s:%s:%d", user, auth, ip, port);
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return strdup(key);
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}
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static STscObj* taosConnectImpl(const char* user, const char* auth, const char* db, __taos_async_fn_t fp, void* param,
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SAppInstInfo* pAppInfo);
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static void setResSchemaInfo(SReqResultInfo* pResInfo, const SSchema* pSchema, int32_t numOfCols);
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TAOS* taos_connect_internal(const char* ip, const char* user, const char* pass, const char* auth, const char* db,
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uint16_t port) {
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if (taos_init() != TSDB_CODE_SUCCESS) {
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return NULL;
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}
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if (!validateUserName(user)) {
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terrno = TSDB_CODE_TSC_INVALID_USER_LENGTH;
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return NULL;
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}
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char localDb[TSDB_DB_NAME_LEN] = {0};
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if (db != NULL) {
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if (!validateDbName(db)) {
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terrno = TSDB_CODE_TSC_INVALID_DB_LENGTH;
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return NULL;
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}
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tstrncpy(localDb, db, sizeof(localDb));
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strdequote(localDb);
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}
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char secretEncrypt[TSDB_PASSWORD_LEN + 1] = {0};
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if (auth == NULL) {
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if (!validatePassword(pass)) {
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terrno = TSDB_CODE_TSC_INVALID_PASS_LENGTH;
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return NULL;
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}
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taosEncryptPass_c((uint8_t*)pass, strlen(pass), secretEncrypt);
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} else {
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tstrncpy(secretEncrypt, auth, tListLen(secretEncrypt));
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}
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SCorEpSet epSet = {0};
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if (ip) {
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if (initEpSetFromCfg(ip, NULL, &epSet) < 0) {
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return NULL;
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}
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if (port) {
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epSet.epSet.eps[0].port = port;
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}
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} else {
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if (initEpSetFromCfg(tsFirst, tsSecond, &epSet) < 0) {
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return NULL;
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}
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}
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char* key = getClusterKey(user, secretEncrypt, ip, port);
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SAppInstInfo** pInst = NULL;
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pthread_mutex_lock(&appInfo.mutex);
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pInst = taosHashGet(appInfo.pInstMap, key, strlen(key));
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SAppInstInfo* p = NULL;
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if (pInst == NULL) {
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p = calloc(1, sizeof(struct SAppInstInfo));
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p->mgmtEp = epSet;
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p->pTransporter = openTransporter(user, secretEncrypt, tsNumOfCores);
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p->pAppHbMgr = appHbMgrInit(p, key);
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taosHashPut(appInfo.pInstMap, key, strlen(key), &p, POINTER_BYTES);
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pInst = &p;
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}
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pthread_mutex_unlock(&appInfo.mutex);
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tfree(key);
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return taosConnectImpl(user, &secretEncrypt[0], localDb, NULL, NULL, *pInst);
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}
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int32_t buildRequest(STscObj* pTscObj, const char* sql, int sqlLen, SRequestObj** pRequest) {
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*pRequest = createRequest(pTscObj, NULL, NULL, TSDB_SQL_SELECT);
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if (*pRequest == NULL) {
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tscError("failed to malloc sqlObj");
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return TSDB_CODE_TSC_OUT_OF_MEMORY;
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}
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(*pRequest)->sqlstr = malloc(sqlLen + 1);
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if ((*pRequest)->sqlstr == NULL) {
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tscError("0x%" PRIx64 " failed to prepare sql string buffer", (*pRequest)->self);
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(*pRequest)->msgBuf = strdup("failed to prepare sql string buffer");
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return TSDB_CODE_TSC_OUT_OF_MEMORY;
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}
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strntolower((*pRequest)->sqlstr, sql, (int32_t)sqlLen);
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(*pRequest)->sqlstr[sqlLen] = 0;
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(*pRequest)->sqlLen = sqlLen;
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tscDebugL("0x%" PRIx64 " SQL: %s, reqId:0x%" PRIx64, (*pRequest)->self, (*pRequest)->sqlstr, (*pRequest)->requestId);
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return TSDB_CODE_SUCCESS;
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}
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int32_t parseSql(SRequestObj* pRequest, SQuery** pQuery) {
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STscObj* pTscObj = pRequest->pTscObj;
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SParseContext cxt = {
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.requestId = pRequest->requestId,
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.acctId = pTscObj->acctId,
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.db = getDbOfConnection(pTscObj),
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.pSql = pRequest->sqlstr,
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.sqlLen = pRequest->sqlLen,
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.pMsg = pRequest->msgBuf,
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.msgLen = ERROR_MSG_BUF_DEFAULT_SIZE,
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.pTransporter = pTscObj->pAppInfo->pTransporter,
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};
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cxt.mgmtEpSet = getEpSet_s(&pTscObj->pAppInfo->mgmtEp);
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int32_t code = catalogGetHandle(pTscObj->pAppInfo->clusterId, &cxt.pCatalog);
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if (code != TSDB_CODE_SUCCESS) {
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tfree(cxt.db);
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return code;
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}
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code = qParseQuerySql(&cxt, pQuery);
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if (TSDB_CODE_SUCCESS == code && ((*pQuery)->haveResultSet)) {
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setResSchemaInfo(&pRequest->body.resInfo, (*pQuery)->pResSchema, (*pQuery)->numOfResCols);
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}
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tfree(cxt.db);
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return code;
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}
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int32_t execDdlQuery(SRequestObj* pRequest, SQuery* pQuery) {
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SCmdMsgInfo* pMsgInfo = pQuery->pCmdMsg;
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pRequest->type = pMsgInfo->msgType;
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pRequest->body.requestMsg = (SDataBuf){.pData = pMsgInfo->pMsg, .len = pMsgInfo->msgLen, .handle = NULL};
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STscObj* pTscObj = pRequest->pTscObj;
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SMsgSendInfo* pSendMsg = buildMsgInfoImpl(pRequest);
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if (pMsgInfo->msgType == TDMT_VND_SHOW_TABLES) {
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SShowReqInfo* pShowReqInfo = &pRequest->body.showInfo;
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if (pShowReqInfo->pArray == NULL) {
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pShowReqInfo->currentIndex = 0; // set the first vnode/ then iterate the next vnode
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pShowReqInfo->pArray = pMsgInfo->pExtension;
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}
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}
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int64_t transporterId = 0;
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asyncSendMsgToServer(pTscObj->pAppInfo->pTransporter, &pMsgInfo->epSet, &transporterId, pSendMsg);
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tsem_wait(&pRequest->body.rspSem);
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return TSDB_CODE_SUCCESS;
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}
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int32_t getPlan(SRequestObj* pRequest, SQuery* pQuery, SQueryPlan** pPlan, SArray* pNodeList) {
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pRequest->type = pQuery->msgType;
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SPlanContext cxt = { .queryId = pRequest->requestId, .pAstRoot = pQuery->pRoot };
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int32_t code = qCreateQueryPlan(&cxt, pPlan, pNodeList);
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if (code != 0) {
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return code;
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}
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return code;
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}
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void setResSchemaInfo(SReqResultInfo* pResInfo, const SSchema* pSchema, int32_t numOfCols) {
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assert(pSchema != NULL && numOfCols > 0);
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pResInfo->numOfCols = numOfCols;
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pResInfo->fields = calloc(numOfCols, sizeof(pSchema[0]));
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for (int32_t i = 0; i < pResInfo->numOfCols; ++i) {
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pResInfo->fields[i].bytes = pSchema[i].bytes;
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pResInfo->fields[i].type = pSchema[i].type;
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tstrncpy(pResInfo->fields[i].name, pSchema[i].name, tListLen(pResInfo->fields[i].name));
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}
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}
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int32_t scheduleQuery(SRequestObj* pRequest, SQueryPlan* pDag, SArray* pNodeList) {
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void* pTransporter = pRequest->pTscObj->pAppInfo->pTransporter;
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SQueryResult res = {.code = 0, .numOfRows = 0, .msgSize = ERROR_MSG_BUF_DEFAULT_SIZE, .msg = pRequest->msgBuf};
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int32_t code = schedulerExecJob(pTransporter, pNodeList, pDag, &pRequest->body.queryJob, pRequest->sqlstr, &res);
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if (code != TSDB_CODE_SUCCESS) {
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if (pRequest->body.queryJob != 0) {
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schedulerFreeJob(pRequest->body.queryJob);
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}
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pRequest->code = code;
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return pRequest->code;
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}
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if (TDMT_VND_SUBMIT == pRequest->type || TDMT_VND_CREATE_TABLE == pRequest->type) {
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pRequest->body.resInfo.numOfRows = res.numOfRows;
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if (pRequest->body.queryJob != 0) {
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schedulerFreeJob(pRequest->body.queryJob);
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}
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}
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pRequest->code = res.code;
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return pRequest->code;
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}
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TAOS_RES* taos_query_l(TAOS* taos, const char* sql, int sqlLen) {
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STscObj* pTscObj = (STscObj*)taos;
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if (sqlLen > (size_t)TSDB_MAX_ALLOWED_SQL_LEN) {
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tscError("sql string exceeds max length:%d", TSDB_MAX_ALLOWED_SQL_LEN);
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terrno = TSDB_CODE_TSC_EXCEED_SQL_LIMIT;
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return NULL;
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}
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SRequestObj* pRequest = NULL;
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SQuery* pQuery;
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SArray* pNodeList = taosArrayInit(4, sizeof(struct SQueryNodeAddr));
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terrno = TSDB_CODE_SUCCESS;
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CHECK_CODE_GOTO(buildRequest(pTscObj, sql, sqlLen, &pRequest), _return);
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CHECK_CODE_GOTO(parseSql(pRequest, &pQuery), _return);
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if (pQuery->directRpc) {
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CHECK_CODE_GOTO(execDdlQuery(pRequest, pQuery), _return);
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} else {
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CHECK_CODE_GOTO(getPlan(pRequest, pQuery, &pRequest->body.pDag, pNodeList), _return);
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CHECK_CODE_GOTO(scheduleQuery(pRequest, pRequest->body.pDag, pNodeList), _return);
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pRequest->code = terrno;
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}
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_return:
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taosArrayDestroy(pNodeList);
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qDestroyQuery(pQuery);
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if (NULL != pRequest && TSDB_CODE_SUCCESS != terrno) {
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pRequest->code = terrno;
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}
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return pRequest;
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}
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int initEpSetFromCfg(const char* firstEp, const char* secondEp, SCorEpSet* pEpSet) {
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pEpSet->version = 0;
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// init mnode ip set
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SEpSet* mgmtEpSet = &(pEpSet->epSet);
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mgmtEpSet->numOfEps = 0;
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mgmtEpSet->inUse = 0;
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if (firstEp && firstEp[0] != 0) {
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if (strlen(firstEp) >= TSDB_EP_LEN) {
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terrno = TSDB_CODE_TSC_INVALID_FQDN;
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return -1;
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}
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taosGetFqdnPortFromEp(firstEp, &mgmtEpSet->eps[0]);
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mgmtEpSet->numOfEps++;
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}
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if (secondEp && secondEp[0] != 0) {
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if (strlen(secondEp) >= TSDB_EP_LEN) {
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terrno = TSDB_CODE_TSC_INVALID_FQDN;
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return -1;
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}
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taosGetFqdnPortFromEp(secondEp, &mgmtEpSet->eps[mgmtEpSet->numOfEps]);
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mgmtEpSet->numOfEps++;
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}
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if (mgmtEpSet->numOfEps == 0) {
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terrno = TSDB_CODE_TSC_INVALID_FQDN;
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return -1;
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}
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return 0;
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}
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STscObj* taosConnectImpl(const char* user, const char* auth, const char* db, __taos_async_fn_t fp, void* param,
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SAppInstInfo* pAppInfo) {
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STscObj* pTscObj = createTscObj(user, auth, db, pAppInfo);
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if (NULL == pTscObj) {
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terrno = TSDB_CODE_TSC_OUT_OF_MEMORY;
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return pTscObj;
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}
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SRequestObj* pRequest = createRequest(pTscObj, fp, param, TDMT_MND_CONNECT);
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if (pRequest == NULL) {
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destroyTscObj(pTscObj);
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terrno = TSDB_CODE_TSC_OUT_OF_MEMORY;
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return NULL;
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}
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SMsgSendInfo* body = buildConnectMsg(pRequest);
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int64_t transporterId = 0;
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asyncSendMsgToServer(pTscObj->pAppInfo->pTransporter, &pTscObj->pAppInfo->mgmtEp.epSet, &transporterId, body);
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tsem_wait(&pRequest->body.rspSem);
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if (pRequest->code != TSDB_CODE_SUCCESS) {
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const char* errorMsg =
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(pRequest->code == TSDB_CODE_RPC_FQDN_ERROR) ? taos_errstr(pRequest) : tstrerror(pRequest->code);
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printf("failed to connect to server, reason: %s\n\n", errorMsg);
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destroyRequest(pRequest);
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taos_close(pTscObj);
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pTscObj = NULL;
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} else {
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tscDebug("0x%" PRIx64 " connection is opening, connId:%d, dnodeConn:%p, reqId:0x%" PRIx64, pTscObj->id,
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pTscObj->connId, pTscObj->pAppInfo->pTransporter, pRequest->requestId);
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destroyRequest(pRequest);
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}
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return pTscObj;
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}
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static SMsgSendInfo* buildConnectMsg(SRequestObj* pRequest) {
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SMsgSendInfo* pMsgSendInfo = calloc(1, sizeof(SMsgSendInfo));
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if (pMsgSendInfo == NULL) {
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terrno = TSDB_CODE_TSC_OUT_OF_MEMORY;
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return NULL;
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}
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pMsgSendInfo->msgType = TDMT_MND_CONNECT;
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pMsgSendInfo->requestObjRefId = pRequest->self;
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pMsgSendInfo->requestId = pRequest->requestId;
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pMsgSendInfo->fp = handleRequestRspFp[TMSG_INDEX(pMsgSendInfo->msgType)];
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pMsgSendInfo->param = pRequest;
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SConnectReq connectReq = {0};
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STscObj* pObj = pRequest->pTscObj;
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char* db = getDbOfConnection(pObj);
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if (db != NULL) {
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tstrncpy(connectReq.db, db, sizeof(connectReq.db));
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}
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tfree(db);
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connectReq.pid = htonl(appInfo.pid);
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connectReq.startTime = htobe64(appInfo.startTime);
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tstrncpy(connectReq.app, appInfo.appName, sizeof(connectReq.app));
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int32_t contLen = tSerializeSConnectReq(NULL, 0, &connectReq);
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void* pReq = malloc(contLen);
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tSerializeSConnectReq(pReq, contLen, &connectReq);
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pMsgSendInfo->msgInfo.len = contLen;
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pMsgSendInfo->msgInfo.pData = pReq;
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return pMsgSendInfo;
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}
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static void destroySendMsgInfo(SMsgSendInfo* pMsgBody) {
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assert(pMsgBody != NULL);
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tfree(pMsgBody->msgInfo.pData);
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tfree(pMsgBody);
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}
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bool persistConnForSpecificMsg(void* parenct, tmsg_t msgType) {
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return msgType == TDMT_VND_QUERY_RSP || msgType == TDMT_VND_FETCH_RSP || msgType == TDMT_VND_RES_READY_RSP;
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}
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void processMsgFromServer(void* parent, SRpcMsg* pMsg, SEpSet* pEpSet) {
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SMsgSendInfo* pSendInfo = (SMsgSendInfo*)pMsg->ahandle;
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assert(pMsg->ahandle != NULL);
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if (pSendInfo->requestObjRefId != 0) {
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SRequestObj* pRequest = (SRequestObj*)taosAcquireRef(clientReqRefPool, pSendInfo->requestObjRefId);
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assert(pRequest->self == pSendInfo->requestObjRefId);
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pRequest->metric.rsp = taosGetTimestampMs();
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pRequest->code = pMsg->code;
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STscObj* pTscObj = pRequest->pTscObj;
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if (pEpSet) {
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if (!isEpsetEqual(&pTscObj->pAppInfo->mgmtEp.epSet, pEpSet)) {
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updateEpSet_s(&pTscObj->pAppInfo->mgmtEp, pEpSet);
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}
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}
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/*
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* There is not response callback function for submit response.
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* The actual inserted number of points is the first number.
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*/
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int32_t elapsed = pRequest->metric.rsp - pRequest->metric.start;
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if (pMsg->code == TSDB_CODE_SUCCESS) {
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tscDebug("0x%" PRIx64 " message:%s, code:%s rspLen:%d, elapsed:%d ms, reqId:0x%" PRIx64, pRequest->self,
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TMSG_INFO(pMsg->msgType), tstrerror(pMsg->code), pMsg->contLen, elapsed, pRequest->requestId);
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} else {
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tscError("0x%" PRIx64 " SQL cmd:%s, code:%s rspLen:%d, elapsed time:%d ms, reqId:0x%" PRIx64, pRequest->self,
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TMSG_INFO(pMsg->msgType), tstrerror(pMsg->code), pMsg->contLen, elapsed, pRequest->requestId);
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}
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taosReleaseRef(clientReqRefPool, pSendInfo->requestObjRefId);
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}
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SDataBuf buf = {.len = pMsg->contLen, .pData = NULL, .handle = pMsg->handle};
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if (pMsg->contLen > 0) {
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buf.pData = calloc(1, pMsg->contLen);
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if (buf.pData == NULL) {
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terrno = TSDB_CODE_OUT_OF_MEMORY;
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pMsg->code = TSDB_CODE_OUT_OF_MEMORY;
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} else {
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memcpy(buf.pData, pMsg->pCont, pMsg->contLen);
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}
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}
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pSendInfo->fp(pSendInfo->param, &buf, pMsg->code);
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rpcFreeCont(pMsg->pCont);
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destroySendMsgInfo(pSendInfo);
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}
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TAOS* taos_connect_auth(const char* ip, const char* user, const char* auth, const char* db, uint16_t port) {
|
|
tscDebug("try to connect to %s:%u by auth, user:%s db:%s", ip, port, user, db);
|
|
if (user == NULL) {
|
|
user = TSDB_DEFAULT_USER;
|
|
}
|
|
|
|
if (auth == NULL) {
|
|
tscError("No auth info is given, failed to connect to server");
|
|
return NULL;
|
|
}
|
|
|
|
return taos_connect_internal(ip, user, NULL, auth, db, port);
|
|
}
|
|
|
|
TAOS* taos_connect_l(const char* ip, int ipLen, const char* user, int userLen, const char* pass, int passLen,
|
|
const char* db, int dbLen, uint16_t port) {
|
|
char ipStr[TSDB_EP_LEN] = {0};
|
|
char dbStr[TSDB_DB_NAME_LEN] = {0};
|
|
char userStr[TSDB_USER_LEN] = {0};
|
|
char passStr[TSDB_PASSWORD_LEN] = {0};
|
|
|
|
strncpy(ipStr, ip, TMIN(TSDB_EP_LEN - 1, ipLen));
|
|
strncpy(userStr, user, TMIN(TSDB_USER_LEN - 1, userLen));
|
|
strncpy(passStr, pass, TMIN(TSDB_PASSWORD_LEN - 1, passLen));
|
|
strncpy(dbStr, db, TMIN(TSDB_DB_NAME_LEN - 1, dbLen));
|
|
return taos_connect(ipStr, userStr, passStr, dbStr, port);
|
|
}
|
|
|
|
void* doFetchRow(SRequestObj* pRequest) {
|
|
assert(pRequest != NULL);
|
|
SReqResultInfo* pResultInfo = &pRequest->body.resInfo;
|
|
|
|
SEpSet epSet = {0};
|
|
|
|
if (pResultInfo->pData == NULL || pResultInfo->current >= pResultInfo->numOfRows) {
|
|
if (pRequest->type == TDMT_VND_QUERY) {
|
|
// All data has returned to App already, no need to try again
|
|
if (pResultInfo->completed) {
|
|
return NULL;
|
|
}
|
|
|
|
SReqResultInfo* pResInfo = &pRequest->body.resInfo;
|
|
int32_t code = schedulerFetchRows(pRequest->body.queryJob, (void**)&pResInfo->pData);
|
|
if (code != TSDB_CODE_SUCCESS) {
|
|
pRequest->code = code;
|
|
return NULL;
|
|
}
|
|
|
|
setQueryResultFromRsp(&pRequest->body.resInfo, (SRetrieveTableRsp*)pResInfo->pData);
|
|
tscDebug("0x%" PRIx64 " fetch results, numOfRows:%d total Rows:%" PRId64 ", complete:%d, reqId:0x%" PRIx64,
|
|
pRequest->self, pResInfo->numOfRows, pResInfo->totalRows, pResInfo->completed, pRequest->requestId);
|
|
|
|
if (pResultInfo->numOfRows == 0) {
|
|
return NULL;
|
|
}
|
|
|
|
goto _return;
|
|
} else if (pRequest->type == TDMT_MND_SHOW) {
|
|
pRequest->type = TDMT_MND_SHOW_RETRIEVE;
|
|
epSet = getEpSet_s(&pRequest->pTscObj->pAppInfo->mgmtEp);
|
|
} else if (pRequest->type == TDMT_VND_SHOW_TABLES) {
|
|
pRequest->type = TDMT_VND_SHOW_TABLES_FETCH;
|
|
SShowReqInfo* pShowReqInfo = &pRequest->body.showInfo;
|
|
SVgroupInfo* pVgroupInfo = taosArrayGet(pShowReqInfo->pArray, pShowReqInfo->currentIndex);
|
|
|
|
epSet = pVgroupInfo->epset;
|
|
} else if (pRequest->type == TDMT_VND_SHOW_TABLES_FETCH) {
|
|
pRequest->type = TDMT_VND_SHOW_TABLES;
|
|
SShowReqInfo* pShowReqInfo = &pRequest->body.showInfo;
|
|
pShowReqInfo->currentIndex += 1;
|
|
if (pShowReqInfo->currentIndex >= taosArrayGetSize(pShowReqInfo->pArray)) {
|
|
return NULL;
|
|
}
|
|
|
|
SVgroupInfo* pVgroupInfo = taosArrayGet(pShowReqInfo->pArray, pShowReqInfo->currentIndex);
|
|
SVShowTablesReq* pShowReq = calloc(1, sizeof(SVShowTablesReq));
|
|
pShowReq->head.vgId = htonl(pVgroupInfo->vgId);
|
|
|
|
pRequest->body.requestMsg.len = sizeof(SVShowTablesReq);
|
|
pRequest->body.requestMsg.pData = pShowReq;
|
|
|
|
SMsgSendInfo* body = buildMsgInfoImpl(pRequest);
|
|
epSet = pVgroupInfo->epset;
|
|
|
|
int64_t transporterId = 0;
|
|
STscObj* pTscObj = pRequest->pTscObj;
|
|
asyncSendMsgToServer(pTscObj->pAppInfo->pTransporter, &epSet, &transporterId, body);
|
|
tsem_wait(&pRequest->body.rspSem);
|
|
|
|
pRequest->type = TDMT_VND_SHOW_TABLES_FETCH;
|
|
} else if (pRequest->type == TDMT_MND_SHOW_RETRIEVE) {
|
|
epSet = getEpSet_s(&pRequest->pTscObj->pAppInfo->mgmtEp);
|
|
|
|
if (pResultInfo->completed) {
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
SMsgSendInfo* body = buildMsgInfoImpl(pRequest);
|
|
|
|
int64_t transporterId = 0;
|
|
STscObj* pTscObj = pRequest->pTscObj;
|
|
asyncSendMsgToServer(pTscObj->pAppInfo->pTransporter, &epSet, &transporterId, body);
|
|
|
|
tsem_wait(&pRequest->body.rspSem);
|
|
|
|
pResultInfo->current = 0;
|
|
if (pResultInfo->numOfRows <= pResultInfo->current) {
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
_return:
|
|
|
|
for (int32_t i = 0; i < pResultInfo->numOfCols; ++i) {
|
|
pResultInfo->row[i] = pResultInfo->pCol[i] + pResultInfo->fields[i].bytes * pResultInfo->current;
|
|
if (IS_VAR_DATA_TYPE(pResultInfo->fields[i].type)) {
|
|
pResultInfo->length[i] = varDataLen(pResultInfo->row[i]);
|
|
pResultInfo->row[i] = varDataVal(pResultInfo->row[i]);
|
|
}
|
|
}
|
|
|
|
pResultInfo->current += 1;
|
|
return pResultInfo->row;
|
|
}
|
|
|
|
static void doPrepareResPtr(SReqResultInfo* pResInfo) {
|
|
if (pResInfo->row == NULL) {
|
|
pResInfo->row = calloc(pResInfo->numOfCols, POINTER_BYTES);
|
|
pResInfo->pCol = calloc(pResInfo->numOfCols, POINTER_BYTES);
|
|
pResInfo->length = calloc(pResInfo->numOfCols, sizeof(int32_t));
|
|
}
|
|
}
|
|
|
|
void setResultDataPtr(SReqResultInfo* pResultInfo, TAOS_FIELD* pFields, int32_t numOfCols, int32_t numOfRows) {
|
|
assert(numOfCols > 0 && pFields != NULL && pResultInfo != NULL);
|
|
if (numOfRows == 0) {
|
|
return;
|
|
}
|
|
|
|
// todo check for the failure of malloc
|
|
doPrepareResPtr(pResultInfo);
|
|
|
|
int32_t offset = 0;
|
|
for (int32_t i = 0; i < numOfCols; ++i) {
|
|
pResultInfo->length[i] = pResultInfo->fields[i].bytes;
|
|
pResultInfo->row[i] = (char*)(pResultInfo->pData + offset * pResultInfo->numOfRows);
|
|
pResultInfo->pCol[i] = pResultInfo->row[i];
|
|
offset += pResultInfo->fields[i].bytes;
|
|
}
|
|
}
|
|
|
|
char* getDbOfConnection(STscObj* pObj) {
|
|
char* p = NULL;
|
|
pthread_mutex_lock(&pObj->mutex);
|
|
size_t len = strlen(pObj->db);
|
|
if (len > 0) {
|
|
p = strndup(pObj->db, tListLen(pObj->db));
|
|
}
|
|
|
|
pthread_mutex_unlock(&pObj->mutex);
|
|
return p;
|
|
}
|
|
|
|
void setConnectionDB(STscObj* pTscObj, const char* db) {
|
|
assert(db != NULL && pTscObj != NULL);
|
|
pthread_mutex_lock(&pTscObj->mutex);
|
|
tstrncpy(pTscObj->db, db, tListLen(pTscObj->db));
|
|
pthread_mutex_unlock(&pTscObj->mutex);
|
|
}
|
|
|
|
void setQueryResultFromRsp(SReqResultInfo* pResultInfo, const SRetrieveTableRsp* pRsp) {
|
|
assert(pResultInfo != NULL && pRsp != NULL);
|
|
|
|
pResultInfo->pRspMsg = (const char*)pRsp;
|
|
pResultInfo->pData = (void*)pRsp->data;
|
|
pResultInfo->numOfRows = htonl(pRsp->numOfRows);
|
|
pResultInfo->current = 0;
|
|
pResultInfo->completed = (pRsp->completed == 1);
|
|
|
|
pResultInfo->totalRows += pResultInfo->numOfRows;
|
|
setResultDataPtr(pResultInfo, pResultInfo->fields, pResultInfo->numOfCols, pResultInfo->numOfRows);
|
|
}
|