homework-jianmu/source/client/src/clientEnv.c

1315 lines
40 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 <ttimer.h>
#include "cJSON.h"
#include "catalog.h"
#include "clientInt.h"
#include "clientLog.h"
#include "clientMonitor.h"
#include "functionMgt.h"
#include "os.h"
#include "osSleep.h"
#include "query.h"
#include "qworker.h"
#include "scheduler.h"
#include "tcache.h"
#include "tcompare.h"
#include "tconv.h"
#include "tglobal.h"
#include "thttp.h"
#include "tmsg.h"
#include "tqueue.h"
#include "tref.h"
#include "trpc.h"
#include "tsched.h"
#include "ttime.h"
#include "tversion.h"
#include "cus_name.h"
#define TSC_VAR_NOT_RELEASE 1
#define TSC_VAR_RELEASED 0
#define ENV_JSON_FALSE_CHECK(c) \
do { \
if (!c) { \
tscError("faild to add item to JSON object"); \
code = TSDB_CODE_TSC_FAIL_GENERATE_JSON; \
goto _end; \
} \
} while (0)
#define ENV_ERR_RET(c, info) \
do { \
int32_t _code = (c); \
if (_code != TSDB_CODE_SUCCESS) { \
terrno = _code; \
tscInitRes = _code; \
tscError(info); \
return; \
} \
} while (0)
STscDbg tscDbg = {0};
SAppInfo appInfo;
int64_t lastClusterId = 0;
int32_t clientReqRefPool = -1;
int32_t clientConnRefPool = -1;
int32_t clientStop = -1;
SHashObj *pTimezoneMap = NULL;
int32_t timestampDeltaLimit = 900; // s
static TdThreadOnce tscinit = PTHREAD_ONCE_INIT;
volatile int32_t tscInitRes = 0;
static int32_t registerRequest(SRequestObj *pRequest, STscObj *pTscObj) {
int32_t code = TSDB_CODE_SUCCESS;
// connection has been released already, abort creating request.
pRequest->self = taosAddRef(clientReqRefPool, pRequest);
if (pRequest->self < 0) {
tscError("failed to add ref to request");
code = terrno;
return code;
}
int32_t num = atomic_add_fetch_32(&pTscObj->numOfReqs, 1);
if (pTscObj->pAppInfo) {
SAppClusterSummary *pSummary = &pTscObj->pAppInfo->summary;
int32_t total = atomic_add_fetch_64((int64_t *)&pSummary->totalRequests, 1);
int32_t currentInst = atomic_add_fetch_64((int64_t *)&pSummary->currentRequests, 1);
tscDebug("req:0x%" PRIx64 ", create request from conn:0x%" PRIx64 ", current:%d, app current:%d, total:%d, QID:0x%" PRIx64,
pRequest->self, pRequest->pTscObj->id, num, currentInst, total, pRequest->requestId);
}
return code;
}
static void concatStrings(SArray *list, char *buf, int size) {
int len = 0;
for (int i = 0; i < taosArrayGetSize(list); i++) {
char *db = taosArrayGet(list, i);
if (NULL == db) {
tscError("get dbname failed, buf:%s", buf);
break;
}
char *dot = strchr(db, '.');
if (dot != NULL) {
db = dot + 1;
}
if (i != 0) {
(void)strncat(buf, ",", size - 1 - len);
len += 1;
}
int ret = tsnprintf(buf + len, size - len, "%s", db);
if (ret < 0) {
tscError("snprintf failed, buf:%s, ret:%d", buf, ret);
break;
}
len += ret;
if (len >= size) {
tscInfo("dbList is truncated, buf:%s, len:%d", buf, len);
break;
}
}
}
#ifdef USE_REPORT
static int32_t generateWriteSlowLog(STscObj *pTscObj, SRequestObj *pRequest, int32_t reqType, int64_t duration) {
cJSON *json = cJSON_CreateObject();
int32_t code = TSDB_CODE_SUCCESS;
if (json == NULL) {
tscError("failed to create monitor json");
return TSDB_CODE_OUT_OF_MEMORY;
}
char clusterId[32] = {0};
if (snprintf(clusterId, sizeof(clusterId), "%" PRId64, pTscObj->pAppInfo->clusterId) < 0) {
tscError("failed to generate clusterId:%" PRId64, pTscObj->pAppInfo->clusterId);
code = TSDB_CODE_FAILED;
goto _end;
}
char startTs[32] = {0};
if (snprintf(startTs, sizeof(startTs), "%" PRId64, pRequest->metric.start / 1000) < 0) {
tscError("failed to generate startTs:%" PRId64, pRequest->metric.start / 1000);
code = TSDB_CODE_FAILED;
goto _end;
}
char requestId[32] = {0};
if (snprintf(requestId, sizeof(requestId), "%" PRIu64, pRequest->requestId) < 0) {
tscError("failed to generate requestId:%" PRIu64, pRequest->requestId);
code = TSDB_CODE_FAILED;
goto _end;
}
ENV_JSON_FALSE_CHECK(cJSON_AddItemToObject(json, "cluster_id", cJSON_CreateString(clusterId)));
ENV_JSON_FALSE_CHECK(cJSON_AddItemToObject(json, "start_ts", cJSON_CreateString(startTs)));
ENV_JSON_FALSE_CHECK(cJSON_AddItemToObject(json, "request_id", cJSON_CreateString(requestId)));
ENV_JSON_FALSE_CHECK(cJSON_AddItemToObject(json, "query_time", cJSON_CreateNumber(duration / 1000)));
ENV_JSON_FALSE_CHECK(cJSON_AddItemToObject(json, "code", cJSON_CreateNumber(pRequest->code)));
ENV_JSON_FALSE_CHECK(cJSON_AddItemToObject(json, "error_info", cJSON_CreateString(tstrerror(pRequest->code))));
ENV_JSON_FALSE_CHECK(cJSON_AddItemToObject(json, "type", cJSON_CreateNumber(reqType)));
ENV_JSON_FALSE_CHECK(cJSON_AddItemToObject(
json, "rows_num", cJSON_CreateNumber(pRequest->body.resInfo.numOfRows + pRequest->body.resInfo.totalRows)));
if (pRequest->sqlstr != NULL &&
strlen(pRequest->sqlstr) > pTscObj->pAppInfo->serverCfg.monitorParas.tsSlowLogMaxLen) {
char tmp = pRequest->sqlstr[pTscObj->pAppInfo->serverCfg.monitorParas.tsSlowLogMaxLen];
pRequest->sqlstr[pTscObj->pAppInfo->serverCfg.monitorParas.tsSlowLogMaxLen] = '\0';
ENV_JSON_FALSE_CHECK(cJSON_AddItemToObject(json, "sql", cJSON_CreateString(pRequest->sqlstr)));
pRequest->sqlstr[pTscObj->pAppInfo->serverCfg.monitorParas.tsSlowLogMaxLen] = tmp;
} else {
ENV_JSON_FALSE_CHECK(cJSON_AddItemToObject(json, "sql", cJSON_CreateString(pRequest->sqlstr)));
}
ENV_JSON_FALSE_CHECK(cJSON_AddItemToObject(json, "user", cJSON_CreateString(pTscObj->user)));
ENV_JSON_FALSE_CHECK(cJSON_AddItemToObject(json, "process_name", cJSON_CreateString(appInfo.appName)));
ENV_JSON_FALSE_CHECK(cJSON_AddItemToObject(json, "ip", cJSON_CreateString(tsLocalFqdn)));
char pid[32] = {0};
if (snprintf(pid, sizeof(pid), "%d", appInfo.pid) < 0) {
tscError("failed to generate pid:%d", appInfo.pid);
code = TSDB_CODE_FAILED;
goto _end;
}
ENV_JSON_FALSE_CHECK(cJSON_AddItemToObject(json, "process_id", cJSON_CreateString(pid)));
if (pRequest->dbList != NULL) {
char dbList[1024] = {0};
concatStrings(pRequest->dbList, dbList, sizeof(dbList) - 1);
ENV_JSON_FALSE_CHECK(cJSON_AddItemToObject(json, "db", cJSON_CreateString(dbList)));
} else if (pRequest->pDb != NULL) {
ENV_JSON_FALSE_CHECK(cJSON_AddItemToObject(json, "db", cJSON_CreateString(pRequest->pDb)));
} else {
ENV_JSON_FALSE_CHECK(cJSON_AddItemToObject(json, "db", cJSON_CreateString("")));
}
char *value = cJSON_PrintUnformatted(json);
if (value == NULL) {
tscError("failed to print json");
code = TSDB_CODE_FAILED;
goto _end;
}
MonitorSlowLogData data = {0};
data.clusterId = pTscObj->pAppInfo->clusterId;
data.type = SLOW_LOG_WRITE;
data.data = value;
code = monitorPutData2MonitorQueue(data);
if (TSDB_CODE_SUCCESS != code) {
taosMemoryFree(value);
goto _end;
}
_end:
cJSON_Delete(json);
return code;
}
#endif
static bool checkSlowLogExceptDb(SRequestObj *pRequest, char *exceptDb) {
if (pRequest->pDb != NULL) {
return strcmp(pRequest->pDb, exceptDb) != 0;
}
for (int i = 0; i < taosArrayGetSize(pRequest->dbList); i++) {
char *db = taosArrayGet(pRequest->dbList, i);
if (NULL == db) {
tscError("get dbname failed, exceptDb:%s", exceptDb);
return false;
}
char *dot = strchr(db, '.');
if (dot != NULL) {
db = dot + 1;
}
if (strcmp(db, exceptDb) == 0) {
return false;
}
}
return true;
}
static void deregisterRequest(SRequestObj *pRequest) {
if (pRequest == NULL) {
tscError("pRequest == NULL");
return;
}
STscObj *pTscObj = pRequest->pTscObj;
SAppClusterSummary *pActivity = &pTscObj->pAppInfo->summary;
int32_t currentInst = atomic_sub_fetch_64((int64_t *)&pActivity->currentRequests, 1);
int32_t num = atomic_sub_fetch_32(&pTscObj->numOfReqs, 1);
int32_t reqType = SLOW_LOG_TYPE_OTHERS;
int64_t duration = taosGetTimestampUs() - pRequest->metric.start;
tscDebug("req:0x%" PRIx64 ", free from conn:0x%" PRIx64 ", QID:0x%" PRIx64
", elapsed:%.2f ms, current:%d, app current:%d",
pRequest->self, pTscObj->id, pRequest->requestId, duration / 1000.0, num, currentInst);
if (TSDB_CODE_SUCCESS == nodesSimAcquireAllocator(pRequest->allocatorRefId)) {
if ((pRequest->pQuery && pRequest->pQuery->pRoot && QUERY_NODE_VNODE_MODIFY_STMT == pRequest->pQuery->pRoot->type &&
(0 == ((SVnodeModifyOpStmt *)pRequest->pQuery->pRoot)->sqlNodeType)) ||
QUERY_NODE_VNODE_MODIFY_STMT == pRequest->stmtType) {
tscDebug("req:0x%" PRIx64 ", insert duration:%" PRId64 "us, parseCost:%" PRId64 "us, ctgCost:%" PRId64
"us, analyseCost:%" PRId64 "us, planCost:%" PRId64 "us, exec:%" PRId64 "us, QID:0x%" PRIx64,
pRequest->self, duration, pRequest->metric.parseCostUs, pRequest->metric.ctgCostUs,
pRequest->metric.analyseCostUs, pRequest->metric.planCostUs, pRequest->metric.execCostUs,
pRequest->requestId);
(void)atomic_add_fetch_64((int64_t *)&pActivity->insertElapsedTime, duration);
reqType = SLOW_LOG_TYPE_INSERT;
} else if (QUERY_NODE_SELECT_STMT == pRequest->stmtType) {
tscDebug("req:0x%" PRIx64 ", query duration:%" PRId64 "us, parseCost:%" PRId64 "us, ctgCost:%" PRId64
"us, analyseCost:%" PRId64 "us, planCost:%" PRId64 "us, exec:%" PRId64 "us, QID:0x%" PRIx64,
pRequest->self, duration, pRequest->metric.parseCostUs, pRequest->metric.ctgCostUs,
pRequest->metric.analyseCostUs, pRequest->metric.planCostUs, pRequest->metric.execCostUs,
pRequest->requestId);
(void)atomic_add_fetch_64((int64_t *)&pActivity->queryElapsedTime, duration);
reqType = SLOW_LOG_TYPE_QUERY;
}
if (TSDB_CODE_SUCCESS != nodesSimReleaseAllocator(pRequest->allocatorRefId)) {
tscError("failed to release allocator");
}
}
#ifdef USE_REPORT
if (pTscObj->pAppInfo->serverCfg.monitorParas.tsEnableMonitor) {
if (QUERY_NODE_VNODE_MODIFY_STMT == pRequest->stmtType || QUERY_NODE_INSERT_STMT == pRequest->stmtType) {
sqlReqLog(pTscObj->id, pRequest->killed, pRequest->code, MONITORSQLTYPEINSERT);
} else if (QUERY_NODE_SELECT_STMT == pRequest->stmtType) {
sqlReqLog(pTscObj->id, pRequest->killed, pRequest->code, MONITORSQLTYPESELECT);
} else if (QUERY_NODE_DELETE_STMT == pRequest->stmtType) {
sqlReqLog(pTscObj->id, pRequest->killed, pRequest->code, MONITORSQLTYPEDELETE);
}
}
if ((duration >= pTscObj->pAppInfo->serverCfg.monitorParas.tsSlowLogThreshold * 1000000UL) &&
checkSlowLogExceptDb(pRequest, pTscObj->pAppInfo->serverCfg.monitorParas.tsSlowLogExceptDb)) {
(void)atomic_add_fetch_64((int64_t *)&pActivity->numOfSlowQueries, 1);
if (pTscObj->pAppInfo->serverCfg.monitorParas.tsSlowLogScope & reqType) {
taosPrintSlowLog("PID:%d, connId:%u, QID:0x%" PRIx64 ", Start:%" PRId64 "us, Duration:%" PRId64 "us, SQL:%s",
taosGetPId(), pTscObj->connId, pRequest->requestId, pRequest->metric.start, duration,
pRequest->sqlstr);
if (pTscObj->pAppInfo->serverCfg.monitorParas.tsEnableMonitor) {
slowQueryLog(pTscObj->id, pRequest->killed, pRequest->code, duration);
if (TSDB_CODE_SUCCESS != generateWriteSlowLog(pTscObj, pRequest, reqType, duration)) {
tscError("failed to generate write slow log");
}
}
}
}
#endif
releaseTscObj(pTscObj->id);
}
// todo close the transporter properly
void closeTransporter(SAppInstInfo *pAppInfo) {
if (pAppInfo == NULL || pAppInfo->pTransporter == NULL) {
return;
}
tscDebug("free transporter:%p in app inst %p", pAppInfo->pTransporter, pAppInfo);
rpcClose(pAppInfo->pTransporter);
}
static bool clientRpcRfp(int32_t code, tmsg_t msgType) {
if (NEED_REDIRECT_ERROR(code)) {
if (msgType == TDMT_SCH_QUERY || msgType == TDMT_SCH_MERGE_QUERY || msgType == TDMT_SCH_FETCH ||
msgType == TDMT_SCH_MERGE_FETCH || msgType == TDMT_SCH_QUERY_HEARTBEAT || msgType == TDMT_SCH_DROP_TASK ||
msgType == TDMT_SCH_TASK_NOTIFY) {
return false;
}
return true;
} else {
return false;
}
}
// start timer for particular msgType
static bool clientRpcTfp(int32_t code, tmsg_t msgType) {
if (msgType == TDMT_VND_SUBMIT || msgType == TDMT_VND_CREATE_TABLE) {
return true;
}
return false;
}
// TODO refactor
int32_t openTransporter(const char *user, const char *auth, int32_t numOfThread, void **pDnodeConn) {
SRpcInit rpcInit;
(void)memset(&rpcInit, 0, sizeof(rpcInit));
rpcInit.localPort = 0;
rpcInit.label = "TSC";
rpcInit.numOfThreads = tsNumOfRpcThreads;
rpcInit.cfp = processMsgFromServer;
rpcInit.rfp = clientRpcRfp;
rpcInit.sessions = 1024;
rpcInit.connType = TAOS_CONN_CLIENT;
rpcInit.user = (char *)user;
rpcInit.idleTime = tsShellActivityTimer * 1000;
rpcInit.compressSize = tsCompressMsgSize;
rpcInit.dfp = destroyAhandle;
rpcInit.retryMinInterval = tsRedirectPeriod;
rpcInit.retryStepFactor = tsRedirectFactor;
rpcInit.retryMaxInterval = tsRedirectMaxPeriod;
rpcInit.retryMaxTimeout = tsMaxRetryWaitTime;
int32_t connLimitNum = tsNumOfRpcSessions / (tsNumOfRpcThreads * 3);
connLimitNum = TMAX(connLimitNum, 10);
connLimitNum = TMIN(connLimitNum, 1000);
rpcInit.connLimitNum = connLimitNum;
rpcInit.shareConnLimit = tsShareConnLimit;
rpcInit.timeToGetConn = tsTimeToGetAvailableConn;
rpcInit.startReadTimer = 1;
rpcInit.readTimeout = tsReadTimeout;
int32_t code = taosVersionStrToInt(td_version, &rpcInit.compatibilityVer);
if (TSDB_CODE_SUCCESS != code) {
tscError("invalid version string.");
return code;
}
*pDnodeConn = rpcOpen(&rpcInit);
if (*pDnodeConn == NULL) {
tscError("failed to init connection to server since %s", tstrerror(terrno));
code = terrno;
}
return code;
}
void destroyAllRequests(SHashObj *pRequests) {
void *pIter = taosHashIterate(pRequests, NULL);
while (pIter != NULL) {
int64_t *rid = pIter;
SRequestObj *pRequest = acquireRequest(*rid);
if (pRequest) {
destroyRequest(pRequest);
(void)releaseRequest(*rid); // ignore error
}
pIter = taosHashIterate(pRequests, pIter);
}
}
void stopAllRequests(SHashObj *pRequests) {
void *pIter = taosHashIterate(pRequests, NULL);
while (pIter != NULL) {
int64_t *rid = pIter;
SRequestObj *pRequest = acquireRequest(*rid);
if (pRequest) {
taos_stop_query(pRequest);
(void)releaseRequest(*rid); // ignore error
}
pIter = taosHashIterate(pRequests, pIter);
}
}
void destroyAppInst(void *info) {
SAppInstInfo *pAppInfo = *(SAppInstInfo **)info;
tscDebug("destroy app inst mgr %p", pAppInfo);
int32_t code = taosThreadMutexLock(&appInfo.mutex);
if (TSDB_CODE_SUCCESS != code) {
tscError("failed to lock app info, code:%s", tstrerror(TAOS_SYSTEM_ERROR(code)));
}
hbRemoveAppHbMrg(&pAppInfo->pAppHbMgr);
code = taosThreadMutexUnlock(&appInfo.mutex);
if (TSDB_CODE_SUCCESS != code) {
tscError("failed to unlock app info, code:%s", tstrerror(TAOS_SYSTEM_ERROR(code)));
}
taosMemoryFreeClear(pAppInfo->instKey);
closeTransporter(pAppInfo);
code = taosThreadMutexLock(&pAppInfo->qnodeMutex);
if (TSDB_CODE_SUCCESS != code) {
tscError("failed to lock qnode mutex, code:%s", tstrerror(TAOS_SYSTEM_ERROR(code)));
}
taosArrayDestroy(pAppInfo->pQnodeList);
code = taosThreadMutexUnlock(&pAppInfo->qnodeMutex);
if (TSDB_CODE_SUCCESS != code) {
tscError("failed to unlock qnode mutex, code:%s", tstrerror(TAOS_SYSTEM_ERROR(code)));
}
taosMemoryFree(pAppInfo);
}
void destroyTscObj(void *pObj) {
if (NULL == pObj) {
return;
}
STscObj *pTscObj = pObj;
int64_t tscId = pTscObj->id;
tscTrace("conn:%" PRIx64 ", begin destroy, p:%p", tscId, pTscObj);
SClientHbKey connKey = {.tscRid = pTscObj->id, .connType = pTscObj->connType};
hbDeregisterConn(pTscObj, connKey);
destroyAllRequests(pTscObj->pRequests);
taosHashCleanup(pTscObj->pRequests);
schedulerStopQueryHb(pTscObj->pAppInfo->pTransporter);
tscDebug("conn:0x%" PRIx64 ", p:%p destroyed, remain inst totalConn:%" PRId64, pTscObj->id, pTscObj,
pTscObj->pAppInfo->numOfConns);
// In any cases, we should not free app inst here. Or an race condition rises.
/*int64_t connNum = */ (void)atomic_sub_fetch_64(&pTscObj->pAppInfo->numOfConns, 1);
(void)taosThreadMutexDestroy(&pTscObj->mutex);
taosMemoryFree(pTscObj);
tscTrace("conn:0x%" PRIx64 ", end destroy, p:%p", tscId, pTscObj);
}
int32_t createTscObj(const char *user, const char *auth, const char *db, int32_t connType, SAppInstInfo *pAppInfo,
STscObj **pObj) {
*pObj = (STscObj *)taosMemoryCalloc(1, sizeof(STscObj));
if (NULL == *pObj) {
return terrno;
}
(*pObj)->pRequests = taosHashInit(64, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BIGINT), false, HASH_ENTRY_LOCK);
if (NULL == (*pObj)->pRequests) {
taosMemoryFree(*pObj);
return terrno ? terrno : TSDB_CODE_OUT_OF_MEMORY;
}
(*pObj)->connType = connType;
(*pObj)->pAppInfo = pAppInfo;
(*pObj)->appHbMgrIdx = pAppInfo->pAppHbMgr->idx;
tstrncpy((*pObj)->user, user, sizeof((*pObj)->user));
(void)memcpy((*pObj)->pass, auth, TSDB_PASSWORD_LEN);
if (db != NULL) {
tstrncpy((*pObj)->db, db, tListLen((*pObj)->db));
}
TSC_ERR_RET(taosThreadMutexInit(&(*pObj)->mutex, NULL));
int32_t code = TSDB_CODE_SUCCESS;
(*pObj)->id = taosAddRef(clientConnRefPool, *pObj);
if ((*pObj)->id < 0) {
tscError("failed to add object to clientConnRefPool");
code = terrno;
taosMemoryFree(*pObj);
return code;
}
(void)atomic_add_fetch_64(&(*pObj)->pAppInfo->numOfConns, 1);
tscInfo("conn:0x%" PRIx64 ", created, p:%p", (*pObj)->id, *pObj);
return code;
}
STscObj *acquireTscObj(int64_t rid) { return (STscObj *)taosAcquireRef(clientConnRefPool, rid); }
void releaseTscObj(int64_t rid) {
int32_t code = taosReleaseRef(clientConnRefPool, rid);
if (TSDB_CODE_SUCCESS != code) {
tscWarn("failed to release TscObj, code:%s", tstrerror(code));
}
}
int32_t createRequest(uint64_t connId, int32_t type, int64_t reqid, SRequestObj **pRequest) {
int32_t code = TSDB_CODE_SUCCESS;
*pRequest = (SRequestObj *)taosMemoryCalloc(1, sizeof(SRequestObj));
if (NULL == *pRequest) {
return terrno;
}
STscObj *pTscObj = acquireTscObj(connId);
if (pTscObj == NULL) {
TSC_ERR_JRET(TSDB_CODE_TSC_DISCONNECTED);
}
SSyncQueryParam *interParam = taosMemoryCalloc(1, sizeof(SSyncQueryParam));
if (interParam == NULL) {
releaseTscObj(connId);
TSC_ERR_JRET(terrno);
}
TSC_ERR_JRET(tsem_init(&interParam->sem, 0, 0));
interParam->pRequest = *pRequest;
(*pRequest)->body.interParam = interParam;
(*pRequest)->resType = RES_TYPE__QUERY;
(*pRequest)->requestId = reqid == 0 ? generateRequestId() : reqid;
(*pRequest)->metric.start = taosGetTimestampUs();
(*pRequest)->body.resInfo.convertUcs4 = true; // convert ucs4 by default
(*pRequest)->body.resInfo.charsetCxt = pTscObj->optionInfo.charsetCxt;
(*pRequest)->type = type;
(*pRequest)->allocatorRefId = -1;
(*pRequest)->pDb = getDbOfConnection(pTscObj);
if (NULL == (*pRequest)->pDb) {
TSC_ERR_JRET(terrno);
}
(*pRequest)->pTscObj = pTscObj;
(*pRequest)->inCallback = false;
(*pRequest)->msgBuf = taosMemoryCalloc(1, ERROR_MSG_BUF_DEFAULT_SIZE);
if (NULL == (*pRequest)->msgBuf) {
code = terrno;
goto _return;
}
(*pRequest)->msgBufLen = ERROR_MSG_BUF_DEFAULT_SIZE;
TSC_ERR_JRET(tsem_init(&(*pRequest)->body.rspSem, 0, 0));
TSC_ERR_JRET(registerRequest(*pRequest, pTscObj));
return TSDB_CODE_SUCCESS;
_return:
if ((*pRequest)->pTscObj) {
doDestroyRequest(*pRequest);
} else {
taosMemoryFree(*pRequest);
}
return code;
}
void doFreeReqResultInfo(SReqResultInfo *pResInfo) {
taosMemoryFreeClear(pResInfo->pRspMsg);
taosMemoryFreeClear(pResInfo->length);
taosMemoryFreeClear(pResInfo->row);
taosMemoryFreeClear(pResInfo->pCol);
taosMemoryFreeClear(pResInfo->fields);
taosMemoryFreeClear(pResInfo->userFields);
taosMemoryFreeClear(pResInfo->convertJson);
taosMemoryFreeClear(pResInfo->decompBuf);
if (pResInfo->convertBuf != NULL) {
for (int32_t i = 0; i < pResInfo->numOfCols; ++i) {
taosMemoryFreeClear(pResInfo->convertBuf[i]);
}
taosMemoryFreeClear(pResInfo->convertBuf);
}
}
SRequestObj *acquireRequest(int64_t rid) { return (SRequestObj *)taosAcquireRef(clientReqRefPool, rid); }
int32_t releaseRequest(int64_t rid) { return taosReleaseRef(clientReqRefPool, rid); }
int32_t removeRequest(int64_t rid) { return taosRemoveRef(clientReqRefPool, rid); }
/// return the most previous req ref id
int64_t removeFromMostPrevReq(SRequestObj *pRequest) {
int64_t mostPrevReqRefId = pRequest->self;
SRequestObj *pTmp = pRequest;
while (pTmp->relation.prevRefId) {
pTmp = acquireRequest(pTmp->relation.prevRefId);
if (pTmp) {
mostPrevReqRefId = pTmp->self;
(void)releaseRequest(mostPrevReqRefId); // ignore error
} else {
break;
}
}
(void)removeRequest(mostPrevReqRefId); // ignore error
return mostPrevReqRefId;
}
void destroyNextReq(int64_t nextRefId) {
if (nextRefId) {
SRequestObj *pObj = acquireRequest(nextRefId);
if (pObj) {
(void)releaseRequest(nextRefId); // ignore error
(void)releaseRequest(nextRefId); // ignore error
}
}
}
void destroySubRequests(SRequestObj *pRequest) {
int32_t reqIdx = -1;
SRequestObj *pReqList[16] = {NULL};
uint64_t tmpRefId = 0;
if (pRequest->relation.userRefId && pRequest->relation.userRefId != pRequest->self) {
return;
}
SRequestObj *pTmp = pRequest;
while (pTmp->relation.prevRefId) {
tmpRefId = pTmp->relation.prevRefId;
pTmp = acquireRequest(tmpRefId);
if (pTmp) {
pReqList[++reqIdx] = pTmp;
(void)releaseRequest(tmpRefId); // ignore error
} else {
tscError("prev req ref 0x%" PRIx64 " is not there", tmpRefId);
break;
}
}
for (int32_t i = reqIdx; i >= 0; i--) {
(void)removeRequest(pReqList[i]->self); // ignore error
}
tmpRefId = pRequest->relation.nextRefId;
while (tmpRefId) {
pTmp = acquireRequest(tmpRefId);
if (pTmp) {
tmpRefId = pTmp->relation.nextRefId;
(void)removeRequest(pTmp->self); // ignore error
(void)releaseRequest(pTmp->self); // ignore error
} else {
tscError("next req ref 0x%" PRIx64 " is not there", tmpRefId);
break;
}
}
}
void doDestroyRequest(void *p) {
if (NULL == p) {
return;
}
SRequestObj *pRequest = (SRequestObj *)p;
uint64_t reqId = pRequest->requestId;
tscTrace("QID:0x%" PRIx64 ", begin destroy request, res:%p", reqId, pRequest);
int64_t nextReqRefId = pRequest->relation.nextRefId;
int32_t code = taosHashRemove(pRequest->pTscObj->pRequests, &pRequest->self, sizeof(pRequest->self));
if (TSDB_CODE_SUCCESS != code) {
tscDebug("failed to remove request from hash since %s", tstrerror(code));
}
schedulerFreeJob(&pRequest->body.queryJob, 0);
destorySqlCallbackWrapper(pRequest->pWrapper);
taosMemoryFreeClear(pRequest->msgBuf);
doFreeReqResultInfo(&pRequest->body.resInfo);
if (TSDB_CODE_SUCCESS != tsem_destroy(&pRequest->body.rspSem)) {
tscError("failed to destroy semaphore");
}
taosArrayDestroy(pRequest->tableList);
taosArrayDestroy(pRequest->targetTableList);
destroyQueryExecRes(&pRequest->body.resInfo.execRes);
if (pRequest->self) {
deregisterRequest(pRequest);
}
taosMemoryFreeClear(pRequest->pDb);
taosArrayDestroy(pRequest->dbList);
if (pRequest->body.interParam) {
if (TSDB_CODE_SUCCESS != tsem_destroy(&((SSyncQueryParam *)pRequest->body.interParam)->sem)) {
tscError("failed to destroy semaphore in pRequest");
}
}
taosMemoryFree(pRequest->body.interParam);
qDestroyQuery(pRequest->pQuery);
nodesDestroyAllocator(pRequest->allocatorRefId);
taosMemoryFreeClear(pRequest->effectiveUser);
taosMemoryFreeClear(pRequest->sqlstr);
taosMemoryFree(pRequest);
tscTrace("QID:0x%" PRIx64 ", end destroy request, res:%p", reqId, pRequest);
destroyNextReq(nextReqRefId);
}
void destroyRequest(SRequestObj *pRequest) {
if (pRequest == NULL) return;
taos_stop_query(pRequest);
(void)removeFromMostPrevReq(pRequest);
}
void taosStopQueryImpl(SRequestObj *pRequest) {
pRequest->killed = true;
// It is not a query, no need to stop.
if (NULL == pRequest->pQuery || QUERY_EXEC_MODE_SCHEDULE != pRequest->pQuery->execMode) {
tscDebug("QID:0x%" PRIx64 ", no need to be killed since not query", pRequest->requestId);
return;
}
schedulerFreeJob(&pRequest->body.queryJob, TSDB_CODE_TSC_QUERY_KILLED);
tscDebug("QID:0x%" PRIx64 ", killed", pRequest->requestId);
}
void stopAllQueries(SRequestObj *pRequest) {
int32_t reqIdx = -1;
SRequestObj *pReqList[16] = {NULL};
uint64_t tmpRefId = 0;
if (pRequest->relation.userRefId && pRequest->relation.userRefId != pRequest->self) {
return;
}
SRequestObj *pTmp = pRequest;
while (pTmp->relation.prevRefId) {
tmpRefId = pTmp->relation.prevRefId;
pTmp = acquireRequest(tmpRefId);
if (pTmp) {
pReqList[++reqIdx] = pTmp;
} else {
tscError("prev req ref 0x%" PRIx64 " is not there", tmpRefId);
break;
}
}
for (int32_t i = reqIdx; i >= 0; i--) {
taosStopQueryImpl(pReqList[i]);
(void)releaseRequest(pReqList[i]->self); // ignore error
}
taosStopQueryImpl(pRequest);
tmpRefId = pRequest->relation.nextRefId;
while (tmpRefId) {
pTmp = acquireRequest(tmpRefId);
if (pTmp) {
tmpRefId = pTmp->relation.nextRefId;
taosStopQueryImpl(pTmp);
(void)releaseRequest(pTmp->self); // ignore error
} else {
tscError("next req ref 0x%" PRIx64 " is not there", tmpRefId);
break;
}
}
}
#ifdef USE_REPORT
void crashReportThreadFuncUnexpectedStopped(void) { atomic_store_32(&clientStop, -1); }
static void *tscCrashReportThreadFp(void *param) {
int32_t code = 0;
setThreadName("client-crashReport");
char filepath[PATH_MAX] = {0};
(void)snprintf(filepath, sizeof(filepath), "%s%s.taosCrashLog", tsLogDir, TD_DIRSEP);
char *pMsg = NULL;
int64_t msgLen = 0;
TdFilePtr pFile = NULL;
bool truncateFile = false;
int32_t sleepTime = 200;
int32_t reportPeriodNum = 3600 * 1000 / sleepTime;
int32_t loopTimes = reportPeriodNum;
#ifdef WINDOWS
if (taosCheckCurrentInDll()) {
atexit(crashReportThreadFuncUnexpectedStopped);
}
#endif
if (-1 != atomic_val_compare_exchange_32(&clientStop, -1, 0)) {
return NULL;
}
STelemAddrMgmt mgt;
code = taosTelemetryMgtInit(&mgt, tsTelemServer);
if (code) {
tscError("failed to init telemetry management, code:%s", tstrerror(code));
return NULL;
}
code = initCrashLogWriter();
if (code) {
tscError("failed to init crash log writer, code:%s", tstrerror(code));
return NULL;
}
while (1) {
checkAndPrepareCrashInfo();
if (clientStop > 0 && reportThreadSetQuit()) break;
if (loopTimes++ < reportPeriodNum) {
if (loopTimes < 0) loopTimes = reportPeriodNum;
taosMsleep(sleepTime);
continue;
}
taosReadCrashInfo(filepath, &pMsg, &msgLen, &pFile);
if (pMsg && msgLen > 0) {
if (taosSendTelemReport(&mgt, tsClientCrashReportUri, tsTelemPort, pMsg, msgLen, HTTP_FLAT) != 0) {
tscError("failed to send crash report");
if (pFile) {
taosReleaseCrashLogFile(pFile, false);
pFile = NULL;
taosMsleep(sleepTime);
loopTimes = 0;
continue;
}
} else {
tscInfo("succeed to send crash report");
truncateFile = true;
}
} else {
tscInfo("no crash info was found");
}
taosMemoryFree(pMsg);
if (pMsg && msgLen > 0) {
pMsg = NULL;
continue;
}
if (pFile) {
taosReleaseCrashLogFile(pFile, truncateFile);
pFile = NULL;
truncateFile = false;
}
taosMsleep(sleepTime);
loopTimes = 0;
}
taosTelemetryDestroy(&mgt);
clientStop = -2;
return NULL;
}
int32_t tscCrashReportInit() {
if (!tsEnableCrashReport) {
return TSDB_CODE_SUCCESS;
}
int32_t code = TSDB_CODE_SUCCESS;
TdThreadAttr thAttr;
TSC_ERR_JRET(taosThreadAttrInit(&thAttr));
TSC_ERR_JRET(taosThreadAttrSetDetachState(&thAttr, PTHREAD_CREATE_JOINABLE));
TdThread crashReportThread;
if (taosThreadCreate(&crashReportThread, &thAttr, tscCrashReportThreadFp, NULL) != 0) {
tscError("failed to create crashReport thread since %s", strerror(ERRNO));
terrno = TAOS_SYSTEM_ERROR(ERRNO);
TSC_ERR_RET(terrno);
}
(void)taosThreadAttrDestroy(&thAttr);
_return:
if (code) {
terrno = TAOS_SYSTEM_ERROR(ERRNO);
TSC_ERR_RET(terrno);
}
return code;
}
void tscStopCrashReport() {
if (!tsEnableCrashReport) {
return;
}
if (atomic_val_compare_exchange_32(&clientStop, 0, 1)) {
tscDebug("crash report thread already stopped");
return;
}
while (atomic_load_32(&clientStop) > 0) {
taosMsleep(100);
}
}
void tscWriteCrashInfo(int signum, void *sigInfo, void *context) {
writeCrashLogToFile(signum, sigInfo, CUS_PROMPT, lastClusterId, appInfo.startTime);
}
#endif
#ifdef TAOSD_INTEGRATED
typedef struct {
TdThread pid;
int32_t stat; // < 0: start failed, 0: init(not start), 1: start successfully
} SDaemonObj;
extern int dmStartDaemon(int argc, char const *argv[]);
extern void dmStopDaemon();
SDaemonObj daemonObj = {0};
typedef struct {
int32_t argc;
char **argv;
} SExecArgs;
static void *dmStartDaemonFunc(void *param) {
int32_t code = 0;
SExecArgs *pArgs = (SExecArgs *)param;
int32_t argc = pArgs->argc;
char **argv = pArgs->argv;
code = dmStartDaemon(argc, (const char **)argv);
if (code != 0) {
printf("failed to start taosd since %s\r\n", tstrerror(code));
goto _exit;
}
_exit:
if (code != 0) {
atomic_store_32(&daemonObj.stat, code);
}
return NULL;
}
static int32_t shellStartDaemon(int argc, char *argv[]) {
int32_t code = 0, lino = 0;
SExecArgs *pArgs = NULL;
int64_t startMs = taosGetTimestampMs(), endMs = startMs;
TdThreadAttr thAttr;
(void)taosThreadAttrInit(&thAttr);
(void)taosThreadAttrSetDetachState(&thAttr, PTHREAD_CREATE_JOINABLE);
#ifdef TD_COMPACT_OS
(void)taosThreadAttrSetStackSize(&thAttr, STACK_SIZE_SMALL);
#endif
pArgs = (SExecArgs *)taosMemoryCalloc(1, sizeof(SExecArgs));
if (pArgs == NULL) {
code = terrno;
TAOS_CHECK_EXIT(code);
}
pArgs->argc = argc;
pArgs->argv = argv;
#ifndef TD_AS_LIB
tsLogEmbedded = 1;
#endif
TAOS_CHECK_EXIT(taosThreadCreate(&daemonObj.pid, &thAttr, dmStartDaemonFunc, pArgs));
while (true) {
if (atomic_load_64(&tsDndStart)) {
atomic_store_32(&daemonObj.stat, 1);
break;
}
int32_t daemonstat = atomic_load_32(&daemonObj.stat);
if (daemonstat < 0) {
code = daemonstat;
TAOS_CHECK_EXIT(code);
}
if (daemonstat > 1) {
code = TSDB_CODE_APP_ERROR;
TAOS_CHECK_EXIT(code);
}
taosMsleep(1000);
}
_exit:
endMs = taosGetTimestampMs();
(void)taosThreadAttrDestroy(&thAttr);
taosMemoryFreeClear(pArgs);
if (code) {
printf("\r\n The daemon start failed at line %d since %s, cost %" PRIi64 " ms\r\n", lino, tstrerror(code),
endMs - startMs);
} else {
printf("\r\n The daemon started successfully, cost %" PRIi64 " ms\r\n", endMs - startMs);
}
#ifndef TD_AS_LIB
tsLogEmbedded = 0;
#endif
return code;
}
void shellStopDaemon() {
#ifndef TD_AS_LIB
tsLogEmbedded = 1;
#endif
dmStopDaemon();
if (taosCheckPthreadValid(daemonObj.pid)) {
(void)taosThreadJoin(daemonObj.pid, NULL);
taosThreadClear(&daemonObj.pid);
}
}
#endif
void taos_init_imp(void) {
#if defined(LINUX)
if (tscDbg.memEnable) {
int32_t code = taosMemoryDbgInit();
if (code) {
(void)printf("failed to init memory dbg, error:%s\n", tstrerror(code));
} else {
tsAsyncLog = false;
(void)printf("memory dbg enabled\n");
}
}
#endif
// In the APIs of other program language, taos_cleanup is not available yet.
// So, to make sure taos_cleanup will be invoked to clean up the allocated resource to suppress the valgrind warning.
(void)atexit(taos_cleanup);
SET_ERRNO(TSDB_CODE_SUCCESS);
terrno = TSDB_CODE_SUCCESS;
taosSeedRand(taosGetTimestampSec());
appInfo.pid = taosGetPId();
appInfo.startTime = taosGetTimestampMs();
appInfo.pInstMap = taosHashInit(4, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), true, HASH_ENTRY_LOCK);
appInfo.pInstMapByClusterId =
taosHashInit(4, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BIGINT), true, HASH_ENTRY_LOCK);
if (NULL == appInfo.pInstMap || NULL == appInfo.pInstMapByClusterId) {
(void)printf("failed to allocate memory when init appInfo\n");
tscInitRes = terrno;
return;
}
taosHashSetFreeFp(appInfo.pInstMap, destroyAppInst);
const char *logName = CUS_PROMPT "log";
ENV_ERR_RET(taosInitLogOutput(&logName), "failed to init log output");
if (taosCreateLog(logName, 10, configDir, NULL, NULL, NULL, NULL, 1) != 0) {
(void)printf(" WARING: Create %s failed:%s. configDir=%s\n", logName, strerror(ERRNO), configDir);
tscInitRes = terrno;
return;
}
#ifdef TAOSD_INTEGRATED
ENV_ERR_RET(taosInitCfg(configDir, NULL, NULL, NULL, NULL, 0), "failed to init cfg");
#else
ENV_ERR_RET(taosInitCfg(configDir, NULL, NULL, NULL, NULL, 1), "failed to init cfg");
#endif
initQueryModuleMsgHandle();
#ifndef DISALLOW_NCHAR_WITHOUT_ICONV
if ((tsCharsetCxt = taosConvInit(tsCharset)) == NULL) {
tscInitRes = terrno;
tscError("failed to init conv");
return;
}
#endif
#if !defined(WINDOWS) && !defined(TD_ASTRA)
ENV_ERR_RET(tzInit(), "failed to init timezone");
#endif
ENV_ERR_RET(monitorInit(), "failed to init monitor");
ENV_ERR_RET(rpcInit(), "failed to init rpc");
if (InitRegexCache() != 0) {
tscInitRes = terrno;
(void)printf("failed to init regex cache\n");
return;
}
tscInfo("starting to initialize TAOS driver");
SCatalogCfg cfg = {.maxDBCacheNum = 100, .maxTblCacheNum = 100};
ENV_ERR_RET(catalogInit(&cfg), "failed to init catalog");
ENV_ERR_RET(schedulerInit(), "failed to init scheduler");
ENV_ERR_RET(initClientId(), "failed to init clientId");
ENV_ERR_RET(initTaskQueue(), "failed to init task queue");
ENV_ERR_RET(fmFuncMgtInit(), "failed to init funcMgt");
ENV_ERR_RET(nodesInitAllocatorSet(), "failed to init allocator set");
clientConnRefPool = taosOpenRef(200, destroyTscObj);
clientReqRefPool = taosOpenRef(40960, doDestroyRequest);
ENV_ERR_RET(taosGetAppName(appInfo.appName, NULL), "failed to get app name");
ENV_ERR_RET(taosThreadMutexInit(&appInfo.mutex, NULL), "failed to init thread mutex");
#ifdef USE_REPORT
ENV_ERR_RET(tscCrashReportInit(), "failed to init crash report");
#endif
ENV_ERR_RET(qInitKeywordsTable(), "failed to init parser keywords table");
#ifdef TAOSD_INTEGRATED
ENV_ERR_RET(shellStartDaemon(0, NULL), "failed to start taosd daemon");
#endif
tscInfo("TAOS driver is initialized successfully");
}
int taos_init() {
(void)taosThreadOnce(&tscinit, taos_init_imp);
return tscInitRes;
}
const char *getCfgName(TSDB_OPTION option) {
const char *name = NULL;
switch (option) {
case TSDB_OPTION_SHELL_ACTIVITY_TIMER:
name = "shellActivityTimer";
break;
case TSDB_OPTION_LOCALE:
name = "locale";
break;
case TSDB_OPTION_CHARSET:
name = "charset";
break;
case TSDB_OPTION_TIMEZONE:
name = "timezone";
break;
case TSDB_OPTION_USE_ADAPTER:
name = "useAdapter";
break;
default:
break;
}
return name;
}
int taos_options_imp(TSDB_OPTION option, const char *str) {
if (option == TSDB_OPTION_CONFIGDIR) {
#ifndef WINDOWS
char newstr[PATH_MAX];
int len = strlen(str);
if (len > 1 && str[0] != '"' && str[0] != '\'') {
if (len + 2 >= PATH_MAX) {
tscError("Too long path %s", str);
return -1;
}
newstr[0] = '"';
(void)memcpy(newstr + 1, str, len);
newstr[len + 1] = '"';
newstr[len + 2] = '\0';
str = newstr;
}
#endif
tstrncpy(configDir, str, PATH_MAX);
tscInfo("set cfg:%s to %s", configDir, str);
return 0;
}
// initialize global config
if (taos_init() != 0) {
return -1;
}
SConfig *pCfg = taosGetCfg();
SConfigItem *pItem = NULL;
const char *name = getCfgName(option);
if (name == NULL) {
tscError("Invalid option %d", option);
return -1;
}
pItem = cfgGetItem(pCfg, name);
if (pItem == NULL) {
tscError("Invalid option %d", option);
return -1;
}
int code = cfgSetItem(pCfg, name, str, CFG_STYPE_TAOS_OPTIONS, true);
if (code != 0) {
tscError("failed to set cfg:%s to %s since %s", name, str, terrstr());
} else {
tscInfo("set cfg:%s to %s", name, str);
if (TSDB_OPTION_SHELL_ACTIVITY_TIMER == option || TSDB_OPTION_USE_ADAPTER == option) {
code = taosCfgDynamicOptions(pCfg, name, false);
}
}
return code;
}
/**
* The request id is an unsigned integer format of 64bit.
*+------------+-----+-----------+---------------+
*| uid|localIp| PId | timestamp | serial number |
*+------------+-----+-----------+---------------+
*| 12bit |12bit|24bit |16bit |
*+------------+-----+-----------+---------------+
* @return
*/
uint64_t generateRequestId() {
static uint32_t hashId = 0;
static int32_t requestSerialId = 0;
if (hashId == 0) {
int32_t code = taosGetSystemUUIDU32(&hashId);
if (code != TSDB_CODE_SUCCESS) {
tscError("Failed to get the system uid to generated request id, reason:%s. use ip address instead",
tstrerror(code));
}
}
uint64_t id = 0;
while (true) {
int64_t ts = taosGetTimestampMs();
uint64_t pid = taosGetPId();
uint32_t val = atomic_add_fetch_32(&requestSerialId, 1);
if (val >= 0xFFFF) atomic_store_32(&requestSerialId, 0);
id = (((uint64_t)(hashId & 0x0FFF)) << 52) | ((pid & 0x0FFF) << 40) | ((ts & 0xFFFFFF) << 16) | (val & 0xFFFF);
if (id) {
break;
}
}
return id;
}
#if 0
#include "cJSON.h"
static setConfRet taos_set_config_imp(const char *config){
setConfRet ret = {SET_CONF_RET_SUCC, {0}};
static bool setConfFlag = false;
if (setConfFlag) {
ret.retCode = SET_CONF_RET_ERR_ONLY_ONCE;
tstrncpy(ret.retMsg, "configuration can only set once", RET_MSG_LENGTH);
return ret;
}
taosInitGlobalCfg();
cJSON *root = cJSON_Parse(config);
if (root == NULL){
ret.retCode = SET_CONF_RET_ERR_JSON_PARSE;
tstrncpy(ret.retMsg, "parse json error", RET_MSG_LENGTH);
return ret;
}
int size = cJSON_GetArraySize(root);
if(!cJSON_IsObject(root) || size == 0) {
ret.retCode = SET_CONF_RET_ERR_JSON_INVALID;
tstrncpy(ret.retMsg, "json content is invalid, must be not empty object", RET_MSG_LENGTH);
return ret;
}
if(size >= 1000) {
ret.retCode = SET_CONF_RET_ERR_TOO_LONG;
tstrncpy(ret.retMsg, "json object size is too long", RET_MSG_LENGTH);
return ret;
}
for(int i = 0; i < size; i++){
cJSON *item = cJSON_GetArrayItem(root, i);
if(!item) {
ret.retCode = SET_CONF_RET_ERR_INNER;
tstrncpy(ret.retMsg, "inner error", RET_MSG_LENGTH);
return ret;
}
if(!taosReadConfigOption(item->string, item->valuestring, NULL, NULL, TAOS_CFG_CSTATUS_OPTION, TSDB_CFG_CTYPE_B_CLIENT)){
ret.retCode = SET_CONF_RET_ERR_PART;
if (strlen(ret.retMsg) == 0){
snprintf(ret.retMsg, RET_MSG_LENGTH, "part error|%s", item->string);
}else{
int tmp = RET_MSG_LENGTH - 1 - (int)strlen(ret.retMsg);
size_t leftSize = tmp >= 0 ? tmp : 0;
strncat(ret.retMsg, "|", leftSize);
tmp = RET_MSG_LENGTH - 1 - (int)strlen(ret.retMsg);
leftSize = tmp >= 0 ? tmp : 0;
strncat(ret.retMsg, item->string, leftSize);
}
}
}
cJSON_Delete(root);
setConfFlag = true;
return ret;
}
setConfRet taos_set_config(const char *config){
taosThreadMutexLock(&setConfMutex);
setConfRet ret = taos_set_config_imp(config);
taosThreadMutexUnlock(&setConfMutex);
return ret;
}
#endif