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

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/*
* 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 "catalog.h"
#include "clientInt.h"
#include "clientLog.h"
#include "clientStmt.h"
#include "functionMgt.h"
#include "os.h"
#include "query.h"
#include "scheduler.h"
#include "tdatablock.h"
#include "tglobal.h"
#include "tmsg.h"
#include "tref.h"
#include "trpc.h"
#include "version.h"
#define TSC_VAR_NOT_RELEASE 1
#define TSC_VAR_RELEASED 0
static int32_t sentinel = TSC_VAR_NOT_RELEASE;
static int32_t createParseContext(const SRequestObj *pRequest, SParseContext **pCxt);
int taos_options(TSDB_OPTION option, const void *arg, ...) {
static int32_t lock = 0;
for (int i = 1; atomic_val_compare_exchange_32(&lock, 0, 1) != 0; ++i) {
if (i % 1000 == 0) {
tscInfo("haven't acquire lock after spin %d times.", i);
sched_yield();
}
}
int ret = taos_options_imp(option, (const char *)arg);
atomic_store_32(&lock, 0);
return ret;
}
// this function may be called by user or system, or by both simultaneously.
void taos_cleanup(void) {
tscDebug("start to cleanup client environment");
if (atomic_val_compare_exchange_32(&sentinel, TSC_VAR_NOT_RELEASE, TSC_VAR_RELEASED) != TSC_VAR_NOT_RELEASE) {
return;
}
tscStopCrashReport();
int32_t id = clientReqRefPool;
clientReqRefPool = -1;
taosCloseRef(id);
hbMgrCleanUp();
catalogDestroy();
schedulerDestroy();
fmFuncMgtDestroy();
qCleanupKeywordsTable();
nodesDestroyAllocatorSet();
id = clientConnRefPool;
clientConnRefPool = -1;
taosCloseRef(id);
rpcCleanup();
tscDebug("rpc cleanup");
cleanupTaskQueue();
taosConvDestroy();
tscInfo("all local resources released");
taosCleanupCfg();
taosCloseLog();
}
static setConfRet taos_set_config_imp(const char *config) {
setConfRet ret = {SET_CONF_RET_SUCC, {0}};
// TODO: need re-implementation
return ret;
}
setConfRet taos_set_config(const char *config) {
// TODO pthread_mutex_lock(&setConfMutex);
setConfRet ret = taos_set_config_imp(config);
// pthread_mutex_unlock(&setConfMutex);
return ret;
}
TAOS *taos_connect(const char *ip, const char *user, const char *pass, const char *db, uint16_t port) {
tscDebug("try to connect to %s:%u, user:%s db:%s", ip, port, user, db);
if (user == NULL) {
user = TSDB_DEFAULT_USER;
}
if (pass == NULL) {
pass = TSDB_DEFAULT_PASS;
}
STscObj *pObj = taos_connect_internal(ip, user, pass, NULL, db, port, CONN_TYPE__QUERY);
if (pObj) {
int64_t *rid = taosMemoryCalloc(1, sizeof(int64_t));
*rid = pObj->id;
return (TAOS *)rid;
}
return NULL;
}
void taos_close_internal(void *taos) {
if (taos == NULL) {
return;
}
STscObj *pTscObj = (STscObj *)taos;
tscDebug("0x%" PRIx64 " try to close connection, numOfReq:%d", pTscObj->id, pTscObj->numOfReqs);
taosRemoveRef(clientConnRefPool, pTscObj->id);
}
void taos_close(TAOS *taos) {
if (taos == NULL) {
return;
}
STscObj *pObj = acquireTscObj(*(int64_t *)taos);
if (NULL == pObj) {
taosMemoryFree(taos);
return;
}
taos_close_internal(pObj);
releaseTscObj(*(int64_t *)taos);
taosMemoryFree(taos);
}
int taos_errno(TAOS_RES *res) {
if (res == NULL || TD_RES_TMQ_META(res)) {
return terrno;
}
if (TD_RES_TMQ(res) || TD_RES_TMQ_METADATA(res)) {
return 0;
}
return ((SRequestObj *)res)->code;
}
const char *taos_errstr(TAOS_RES *res) {
if (res == NULL || TD_RES_TMQ_META(res)) {
return (const char *)tstrerror(terrno);
}
if (TD_RES_TMQ(res) || TD_RES_TMQ_METADATA(res)) {
return "success";
}
SRequestObj *pRequest = (SRequestObj *)res;
if (NULL != pRequest->msgBuf && (strlen(pRequest->msgBuf) > 0 || pRequest->code == TSDB_CODE_RPC_FQDN_ERROR)) {
return pRequest->msgBuf;
} else {
return (const char *)tstrerror(pRequest->code);
}
}
void taos_free_result(TAOS_RES *res) {
if (NULL == res) {
return;
}
tscDebug("taos free res %p", res);
if (TD_RES_QUERY(res)) {
SRequestObj *pRequest = (SRequestObj *)res;
tscDebug("0x%" PRIx64 " taos_free_result start to free query", pRequest->requestId);
destroyRequest(pRequest);
} else if (TD_RES_TMQ_METADATA(res)) {
SMqTaosxRspObj *pRsp = (SMqTaosxRspObj *)res;
taosArrayDestroyP(pRsp->rsp.blockData, taosMemoryFree);
taosArrayDestroy(pRsp->rsp.blockDataLen);
taosArrayDestroyP(pRsp->rsp.blockTbName, taosMemoryFree);
taosArrayDestroyP(pRsp->rsp.blockSchema, (FDelete)tDeleteSchemaWrapper);
// taosx
taosArrayDestroy(pRsp->rsp.createTableLen);
taosArrayDestroyP(pRsp->rsp.createTableReq, taosMemoryFree);
pRsp->resInfo.pRspMsg = NULL;
doFreeReqResultInfo(&pRsp->resInfo);
taosMemoryFree(pRsp);
} else if (TD_RES_TMQ(res)) {
SMqRspObj *pRsp = (SMqRspObj *)res;
taosArrayDestroyP(pRsp->rsp.blockData, taosMemoryFree);
taosArrayDestroy(pRsp->rsp.blockDataLen);
taosArrayDestroyP(pRsp->rsp.blockTbName, taosMemoryFree);
taosArrayDestroyP(pRsp->rsp.blockSchema, (FDelete)tDeleteSchemaWrapper);
pRsp->resInfo.pRspMsg = NULL;
doFreeReqResultInfo(&pRsp->resInfo);
taosMemoryFree(pRsp);
} else if (TD_RES_TMQ_META(res)) {
SMqMetaRspObj *pRspObj = (SMqMetaRspObj *)res;
taosMemoryFree(pRspObj->metaRsp.metaRsp);
taosMemoryFree(pRspObj);
}
}
void taos_kill_query(TAOS *taos) {
if (NULL == taos) {
return;
}
int64_t rid = *(int64_t *)taos;
STscObj *pTscObj = acquireTscObj(rid);
if (pTscObj) {
stopAllRequests(pTscObj->pRequests);
}
releaseTscObj(rid);
}
int taos_field_count(TAOS_RES *res) {
if (res == NULL || TD_RES_TMQ_META(res)) {
return 0;
}
SReqResultInfo *pResInfo = tscGetCurResInfo(res);
return pResInfo->numOfCols;
}
int taos_num_fields(TAOS_RES *res) { return taos_field_count(res); }
TAOS_FIELD *taos_fetch_fields(TAOS_RES *res) {
if (taos_num_fields(res) == 0 || TD_RES_TMQ_META(res)) {
return NULL;
}
SReqResultInfo *pResInfo = tscGetCurResInfo(res);
return pResInfo->userFields;
}
TAOS_RES *taos_query(TAOS *taos, const char *sql) { return taosQueryImpl(taos, sql, false); }
TAOS_RES *taos_query_with_reqid(TAOS *taos, const char *sql, int64_t reqid) {
return taosQueryImplWithReqid(taos, sql, false, reqid);
}
TAOS_ROW taos_fetch_row(TAOS_RES *res) {
if (res == NULL) {
return NULL;
}
if (TD_RES_QUERY(res)) {
SRequestObj *pRequest = (SRequestObj *)res;
if (pRequest->type == TSDB_SQL_RETRIEVE_EMPTY_RESULT || pRequest->type == TSDB_SQL_INSERT ||
pRequest->code != TSDB_CODE_SUCCESS || taos_num_fields(res) == 0 || pRequest->killed) {
return NULL;
}
return doAsyncFetchRows(pRequest, true, true);
} else if (TD_RES_TMQ(res) || TD_RES_TMQ_METADATA(res)) {
SMqRspObj *msg = ((SMqRspObj *)res);
SReqResultInfo *pResultInfo;
if (msg->resIter == -1) {
pResultInfo = tmqGetNextResInfo(res, true);
} else {
pResultInfo = tmqGetCurResInfo(res);
}
if (pResultInfo->current < pResultInfo->numOfRows) {
doSetOneRowPtr(pResultInfo);
pResultInfo->current += 1;
return pResultInfo->row;
} else {
pResultInfo = tmqGetNextResInfo(res, true);
if (pResultInfo == NULL) {
return NULL;
}
doSetOneRowPtr(pResultInfo);
pResultInfo->current += 1;
return pResultInfo->row;
}
} else if (TD_RES_TMQ_META(res)) {
return NULL;
} else {
// assert to avoid un-initialization error
tscError("invalid result passed to taos_fetch_row");
return NULL;
}
}
int taos_print_row(char *str, TAOS_ROW row, TAOS_FIELD *fields, int num_fields) {
int32_t len = 0;
for (int i = 0; i < num_fields; ++i) {
if (i > 0) {
str[len++] = ' ';
}
if (row[i] == NULL) {
len += sprintf(str + len, "%s", TSDB_DATA_NULL_STR);
continue;
}
switch (fields[i].type) {
case TSDB_DATA_TYPE_TINYINT:
len += sprintf(str + len, "%d", *((int8_t *)row[i]));
break;
case TSDB_DATA_TYPE_UTINYINT:
len += sprintf(str + len, "%u", *((uint8_t *)row[i]));
break;
case TSDB_DATA_TYPE_SMALLINT:
len += sprintf(str + len, "%d", *((int16_t *)row[i]));
break;
case TSDB_DATA_TYPE_USMALLINT:
len += sprintf(str + len, "%u", *((uint16_t *)row[i]));
break;
case TSDB_DATA_TYPE_INT:
len += sprintf(str + len, "%d", *((int32_t *)row[i]));
break;
case TSDB_DATA_TYPE_UINT:
len += sprintf(str + len, "%u", *((uint32_t *)row[i]));
break;
case TSDB_DATA_TYPE_BIGINT:
len += sprintf(str + len, "%" PRId64, *((int64_t *)row[i]));
break;
case TSDB_DATA_TYPE_UBIGINT:
len += sprintf(str + len, "%" PRIu64, *((uint64_t *)row[i]));
break;
case TSDB_DATA_TYPE_FLOAT: {
float fv = 0;
fv = GET_FLOAT_VAL(row[i]);
len += sprintf(str + len, "%f", fv);
} break;
case TSDB_DATA_TYPE_DOUBLE: {
double dv = 0;
dv = GET_DOUBLE_VAL(row[i]);
len += sprintf(str + len, "%lf", dv);
} break;
case TSDB_DATA_TYPE_BINARY:
case TSDB_DATA_TYPE_NCHAR: {
int32_t charLen = varDataLen((char *)row[i] - VARSTR_HEADER_SIZE);
if (fields[i].type == TSDB_DATA_TYPE_BINARY) {
if (ASSERT(charLen <= fields[i].bytes && charLen >= 0)) {
tscError("taos_print_row error binary. charLen:%d, fields[i].bytes:%d", charLen, fields[i].bytes);
}
} else {
if (ASSERT(charLen <= fields[i].bytes * TSDB_NCHAR_SIZE && charLen >= 0)) {
tscError("taos_print_row error. charLen:%d, fields[i].bytes:%d", charLen, fields[i].bytes);
}
}
memcpy(str + len, row[i], charLen);
len += charLen;
} break;
case TSDB_DATA_TYPE_TIMESTAMP:
len += sprintf(str + len, "%" PRId64, *((int64_t *)row[i]));
break;
case TSDB_DATA_TYPE_BOOL:
len += sprintf(str + len, "%d", *((int8_t *)row[i]));
default:
break;
}
}
str[len] = 0;
return len;
}
int *taos_fetch_lengths(TAOS_RES *res) {
if (res == NULL || TD_RES_TMQ_META(res)) {
return NULL;
}
SReqResultInfo *pResInfo = tscGetCurResInfo(res);
return pResInfo->length;
}
TAOS_ROW *taos_result_block(TAOS_RES *res) {
if (res == NULL || TD_RES_TMQ_META(res)) {
terrno = TSDB_CODE_INVALID_PARA;
return NULL;
}
if (taos_is_update_query(res)) {
return NULL;
}
SReqResultInfo *pResInfo = tscGetCurResInfo(res);
return &pResInfo->row;
}
// todo intergrate with tDataTypes
const char *taos_data_type(int type) {
switch (type) {
case TSDB_DATA_TYPE_NULL:
return "TSDB_DATA_TYPE_NULL";
case TSDB_DATA_TYPE_BOOL:
return "TSDB_DATA_TYPE_BOOL";
case TSDB_DATA_TYPE_TINYINT:
return "TSDB_DATA_TYPE_TINYINT";
case TSDB_DATA_TYPE_SMALLINT:
return "TSDB_DATA_TYPE_SMALLINT";
case TSDB_DATA_TYPE_INT:
return "TSDB_DATA_TYPE_INT";
case TSDB_DATA_TYPE_BIGINT:
return "TSDB_DATA_TYPE_BIGINT";
case TSDB_DATA_TYPE_FLOAT:
return "TSDB_DATA_TYPE_FLOAT";
case TSDB_DATA_TYPE_DOUBLE:
return "TSDB_DATA_TYPE_DOUBLE";
case TSDB_DATA_TYPE_VARCHAR:
return "TSDB_DATA_TYPE_VARCHAR";
// case TSDB_DATA_TYPE_BINARY: return "TSDB_DATA_TYPE_VARCHAR";
case TSDB_DATA_TYPE_TIMESTAMP:
return "TSDB_DATA_TYPE_TIMESTAMP";
case TSDB_DATA_TYPE_NCHAR:
return "TSDB_DATA_TYPE_NCHAR";
case TSDB_DATA_TYPE_JSON:
return "TSDB_DATA_TYPE_JSON";
case TSDB_DATA_TYPE_UTINYINT:
return "TSDB_DATA_TYPE_UTINYINT";
case TSDB_DATA_TYPE_USMALLINT:
return "TSDB_DATA_TYPE_USMALLINT";
case TSDB_DATA_TYPE_UINT:
return "TSDB_DATA_TYPE_UINT";
case TSDB_DATA_TYPE_UBIGINT:
return "TSDB_DATA_TYPE_UBIGINT";
case TSDB_DATA_TYPE_VARBINARY:
return "TSDB_DATA_TYPE_VARBINARY";
case TSDB_DATA_TYPE_DECIMAL:
return "TSDB_DATA_TYPE_DECIMAL";
case TSDB_DATA_TYPE_BLOB:
return "TSDB_DATA_TYPE_BLOB";
case TSDB_DATA_TYPE_MEDIUMBLOB:
return "TSDB_DATA_TYPE_MEDIUMBLOB";
default:
return "UNKNOWN";
}
}
const char *taos_get_client_info() { return version; }
// return int32_t
int taos_affected_rows(TAOS_RES *res) {
if (res == NULL || TD_RES_TMQ(res) || TD_RES_TMQ_META(res) || TD_RES_TMQ_METADATA(res)) {
return 0;
}
SRequestObj *pRequest = (SRequestObj *)res;
SReqResultInfo *pResInfo = &pRequest->body.resInfo;
return (int)pResInfo->numOfRows;
}
// return int64_t
int64_t taos_affected_rows64(TAOS_RES *res) {
if (res == NULL || TD_RES_TMQ(res) || TD_RES_TMQ_META(res) || TD_RES_TMQ_METADATA(res)) {
return 0;
}
SRequestObj *pRequest = (SRequestObj *)res;
SReqResultInfo *pResInfo = &pRequest->body.resInfo;
return pResInfo->numOfRows;
}
int taos_result_precision(TAOS_RES *res) {
if (res == NULL || TD_RES_TMQ_META(res)) {
return TSDB_TIME_PRECISION_MILLI;
}
if (TD_RES_QUERY(res)) {
SRequestObj *pRequest = (SRequestObj *)res;
return pRequest->body.resInfo.precision;
} else if (TD_RES_TMQ(res) || TD_RES_TMQ_METADATA(res)) {
SReqResultInfo *info = tmqGetCurResInfo(res);
return info->precision;
}
return TSDB_TIME_PRECISION_MILLI;
}
int taos_select_db(TAOS *taos, const char *db) {
STscObj *pObj = acquireTscObj(*(int64_t *)taos);
if (pObj == NULL) {
releaseTscObj(*(int64_t *)taos);
terrno = TSDB_CODE_TSC_DISCONNECTED;
return TSDB_CODE_TSC_DISCONNECTED;
}
if (db == NULL || strlen(db) == 0) {
releaseTscObj(*(int64_t *)taos);
terrno = TSDB_CODE_TSC_INVALID_INPUT;
return terrno;
}
char sql[256] = {0};
snprintf(sql, tListLen(sql), "use %s", db);
TAOS_RES *pRequest = taos_query(taos, sql);
int32_t code = taos_errno(pRequest);
taos_free_result(pRequest);
releaseTscObj(*(int64_t *)taos);
return code;
}
void taos_stop_query(TAOS_RES *res) {
if (res == NULL || TD_RES_TMQ(res) || TD_RES_TMQ_META(res) || TD_RES_TMQ_METADATA(res)) {
return;
}
SRequestObj *pRequest = (SRequestObj *)res;
pRequest->killed = true;
// It is not a query, no need to stop.
if (NULL == pRequest->pQuery || QUERY_EXEC_MODE_SCHEDULE != pRequest->pQuery->execMode) {
tscDebug("request 0x%" PRIx64 " no need to be killed since not query", pRequest->requestId);
return;
}
schedulerFreeJob(&pRequest->body.queryJob, TSDB_CODE_TSC_QUERY_KILLED);
tscDebug("request %" PRIx64 " killed", pRequest->requestId);
}
bool taos_is_null(TAOS_RES *res, int32_t row, int32_t col) {
if (res == NULL || TD_RES_TMQ_META(res)) {
return true;
}
SReqResultInfo *pResultInfo = tscGetCurResInfo(res);
if (col >= pResultInfo->numOfCols || col < 0 || row >= pResultInfo->numOfRows || row < 0) {
return true;
}
SResultColumn *pCol = &pResultInfo->pCol[col];
if (IS_VAR_DATA_TYPE(pResultInfo->fields[col].type)) {
return (pCol->offset[row] == -1);
} else {
return colDataIsNull_f(pCol->nullbitmap, row);
}
}
bool taos_is_update_query(TAOS_RES *res) { return taos_num_fields(res) == 0; }
int taos_fetch_block(TAOS_RES *res, TAOS_ROW *rows) {
int32_t numOfRows = 0;
/*int32_t code = */ taos_fetch_block_s(res, &numOfRows, rows);
return numOfRows;
}
int taos_fetch_block_s(TAOS_RES *res, int *numOfRows, TAOS_ROW *rows) {
if (res == NULL || TD_RES_TMQ_META(res)) {
return 0;
}
if (TD_RES_QUERY(res)) {
SRequestObj *pRequest = (SRequestObj *)res;
(*rows) = NULL;
(*numOfRows) = 0;
if (pRequest->type == TSDB_SQL_RETRIEVE_EMPTY_RESULT || pRequest->type == TSDB_SQL_INSERT ||
pRequest->code != TSDB_CODE_SUCCESS || taos_num_fields(res) == 0) {
return 0;
}
doAsyncFetchRows(pRequest, false, true);
// TODO refactor
SReqResultInfo *pResultInfo = &pRequest->body.resInfo;
pResultInfo->current = pResultInfo->numOfRows;
(*rows) = pResultInfo->row;
(*numOfRows) = pResultInfo->numOfRows;
return pRequest->code;
} else if (TD_RES_TMQ(res) || TD_RES_TMQ_METADATA(res)) {
SReqResultInfo *pResultInfo = tmqGetNextResInfo(res, true);
if (pResultInfo == NULL) return -1;
pResultInfo->current = pResultInfo->numOfRows;
(*rows) = pResultInfo->row;
(*numOfRows) = pResultInfo->numOfRows;
return 0;
} else {
tscError("taos_fetch_block_s invalid res type");
return -1;
}
}
int taos_fetch_raw_block(TAOS_RES *res, int *numOfRows, void **pData) {
*numOfRows = 0;
*pData = NULL;
if (res == NULL || TD_RES_TMQ_META(res)) {
return 0;
}
if (TD_RES_TMQ(res) || TD_RES_TMQ_METADATA(res)) {
SReqResultInfo *pResultInfo = tmqGetNextResInfo(res, false);
if (pResultInfo == NULL) {
(*numOfRows) = 0;
return 0;
}
pResultInfo->current = pResultInfo->numOfRows;
(*numOfRows) = pResultInfo->numOfRows;
(*pData) = (void *)pResultInfo->pData;
return 0;
}
SRequestObj *pRequest = (SRequestObj *)res;
if (pRequest->type == TSDB_SQL_RETRIEVE_EMPTY_RESULT || pRequest->type == TSDB_SQL_INSERT ||
pRequest->code != TSDB_CODE_SUCCESS || taos_num_fields(res) == 0) {
return 0;
}
doAsyncFetchRows(pRequest, false, false);
SReqResultInfo *pResultInfo = &pRequest->body.resInfo;
pResultInfo->current = pResultInfo->numOfRows;
(*numOfRows) = pResultInfo->numOfRows;
(*pData) = (void *)pResultInfo->pData;
return 0;
}
int *taos_get_column_data_offset(TAOS_RES *res, int columnIndex) {
if (res == NULL || TD_RES_TMQ_META(res)) {
return 0;
}
int32_t numOfFields = taos_num_fields(res);
if (columnIndex < 0 || columnIndex >= numOfFields || numOfFields == 0) {
return 0;
}
SReqResultInfo *pResInfo = tscGetCurResInfo(res);
TAOS_FIELD *pField = &pResInfo->userFields[columnIndex];
if (!IS_VAR_DATA_TYPE(pField->type)) {
return 0;
}
return pResInfo->pCol[columnIndex].offset;
}
int taos_validate_sql(TAOS *taos, const char *sql) {
TAOS_RES *pObj = taosQueryImpl(taos, sql, true);
int code = taos_errno(pObj);
taos_free_result(pObj);
return code;
}
void taos_reset_current_db(TAOS *taos) {
STscObj *pTscObj = acquireTscObj(*(int64_t *)taos);
if (pTscObj == NULL) {
terrno = TSDB_CODE_TSC_DISCONNECTED;
return;
}
resetConnectDB(pTscObj);
releaseTscObj(*(int64_t *)taos);
}
const char *taos_get_server_info(TAOS *taos) {
STscObj *pTscObj = acquireTscObj(*(int64_t *)taos);
if (pTscObj == NULL) {
terrno = TSDB_CODE_TSC_DISCONNECTED;
return NULL;
}
releaseTscObj(*(int64_t *)taos);
return pTscObj->sDetailVer;
}
int taos_get_current_db(TAOS *taos, char *database, int len, int *required) {
STscObj *pTscObj = acquireTscObj(*(int64_t *)taos);
if (pTscObj == NULL) {
terrno = TSDB_CODE_TSC_DISCONNECTED;
return -1;
}
int code = TSDB_CODE_SUCCESS;
taosThreadMutexLock(&pTscObj->mutex);
if (database == NULL || len <= 0) {
if (required != NULL) *required = strlen(pTscObj->db) + 1;
terrno = TSDB_CODE_INVALID_PARA;
code = -1;
} else if (len < strlen(pTscObj->db) + 1) {
tstrncpy(database, pTscObj->db, len);
if (required) *required = strlen(pTscObj->db) + 1;
terrno = TSDB_CODE_INVALID_PARA;
code = -1;
} else {
strcpy(database, pTscObj->db);
code = 0;
}
taosThreadMutexUnlock(&pTscObj->mutex);
return code;
}
static void destoryTablesReq(void *p) {
STablesReq *pRes = (STablesReq *)p;
taosArrayDestroy(pRes->pTables);
}
static void destoryCatalogReq(SCatalogReq *pCatalogReq) {
if (NULL == pCatalogReq) {
return;
}
taosArrayDestroy(pCatalogReq->pDbVgroup);
taosArrayDestroy(pCatalogReq->pDbCfg);
taosArrayDestroy(pCatalogReq->pDbInfo);
taosArrayDestroyEx(pCatalogReq->pTableMeta, destoryTablesReq);
taosArrayDestroyEx(pCatalogReq->pTableHash, destoryTablesReq);
taosArrayDestroy(pCatalogReq->pUdf);
taosArrayDestroy(pCatalogReq->pIndex);
taosArrayDestroy(pCatalogReq->pUser);
taosArrayDestroy(pCatalogReq->pTableIndex);
taosArrayDestroy(pCatalogReq->pTableCfg);
taosArrayDestroy(pCatalogReq->pTableTag);
taosMemoryFree(pCatalogReq);
}
void destorySqlCallbackWrapper(SSqlCallbackWrapper *pWrapper) {
if (NULL == pWrapper) {
return;
}
destoryCatalogReq(pWrapper->pCatalogReq);
qDestroyParseContext(pWrapper->pParseCtx);
taosMemoryFree(pWrapper);
}
static void doAsyncQueryFromAnalyse(SMetaData *pResultMeta, void *param, int32_t code) {
SSqlCallbackWrapper *pWrapper = (SSqlCallbackWrapper *)param;
SRequestObj *pRequest = pWrapper->pRequest;
SQuery *pQuery = pRequest->pQuery;
int64_t analyseStart = taosGetTimestampUs();
pRequest->metric.ctgCostUs = analyseStart - pRequest->metric.ctgStart;
qError("0x%" PRIx64 " start to semantic analysis, reqId:0x%" PRIx64, pRequest->self, pRequest->requestId);
if (code == TSDB_CODE_SUCCESS) {
code = qAnalyseSqlSemantic(pWrapper->pParseCtx, pWrapper->pCatalogReq, pResultMeta, pQuery);
pRequest->stableQuery = pQuery->stableQuery;
if (pQuery->pRoot) {
pRequest->stmtType = pQuery->pRoot->type;
}
}
pRequest->metric.analyseCostUs = taosGetTimestampUs() - analyseStart;
if (code == TSDB_CODE_SUCCESS) {
if (pQuery->haveResultSet) {
setResSchemaInfo(&pRequest->body.resInfo, pQuery->pResSchema, pQuery->numOfResCols);
setResPrecision(&pRequest->body.resInfo, pQuery->precision);
}
TSWAP(pRequest->dbList, (pQuery)->pDbList);
TSWAP(pRequest->tableList, (pQuery)->pTableList);
TSWAP(pRequest->targetTableList, (pQuery)->pTargetTableList);
launchAsyncQuery(pRequest, pQuery, pResultMeta, pWrapper);
} else {
destorySqlCallbackWrapper(pWrapper);
qDestroyQuery(pRequest->pQuery);
pRequest->pQuery = NULL;
if (NEED_CLIENT_HANDLE_ERROR(code)) {
tscDebug("0x%" PRIx64 " client retry to handle the error, code:%d - %s, tryCount:%d, reqId:0x%" PRIx64,
pRequest->self, code, tstrerror(code), pRequest->retry, pRequest->requestId);
pRequest->prevCode = code;
doAsyncQuery(pRequest, true);
return;
}
// return to app directly
tscError("0x%" PRIx64 " error occurs, code:%s, return to user app, reqId:0x%" PRIx64, pRequest->self,
tstrerror(code), pRequest->requestId);
pRequest->code = code;
pRequest->body.queryFp(pRequest->body.param, pRequest, code);
}
}
static int32_t getAllMetaAsync(SSqlCallbackWrapper *pWrapper, catalogCallback fp) {
SRequestConnInfo conn = {.pTrans = pWrapper->pParseCtx->pTransporter,
.requestId = pWrapper->pParseCtx->requestId,
.requestObjRefId = pWrapper->pParseCtx->requestRid,
.mgmtEps = pWrapper->pParseCtx->mgmtEpSet};
pWrapper->pRequest->metric.ctgStart = taosGetTimestampUs();
return catalogAsyncGetAllMeta(pWrapper->pParseCtx->pCatalog, &conn, pWrapper->pCatalogReq, fp, pWrapper,
&pWrapper->pRequest->body.queryJob);
}
static void doAsyncQueryFromParse(SMetaData *pResultMeta, void *param, int32_t code);
static int32_t phaseAsyncQuery(SSqlCallbackWrapper *pWrapper) {
int32_t code = TSDB_CODE_SUCCESS;
switch (pWrapper->pRequest->pQuery->execStage) {
case QUERY_EXEC_STAGE_PARSE: {
// continue parse after get metadata
code = getAllMetaAsync(pWrapper, doAsyncQueryFromParse);
break;
}
case QUERY_EXEC_STAGE_ANALYSE: {
// analysis after get metadata
code = getAllMetaAsync(pWrapper, doAsyncQueryFromAnalyse);
break;
}
case QUERY_EXEC_STAGE_SCHEDULE: {
launchAsyncQuery(pWrapper->pRequest, pWrapper->pRequest->pQuery, NULL, pWrapper);
break;
}
default:
break;
}
return code;
}
static void doAsyncQueryFromParse(SMetaData *pResultMeta, void *param, int32_t code) {
SSqlCallbackWrapper *pWrapper = (SSqlCallbackWrapper *)param;
SRequestObj *pRequest = pWrapper->pRequest;
SQuery *pQuery = pRequest->pQuery;
pRequest->metric.ctgCostUs += taosGetTimestampUs() - pRequest->metric.ctgStart;
qDebug("0x%" PRIx64 " start to continue parse, reqId:0x%" PRIx64 ", code:%s", pRequest->self, pRequest->requestId,
tstrerror(code));
if (code == TSDB_CODE_SUCCESS) {
// pWrapper->pCatalogReq->forceUpdate = false;
code = qContinueParseSql(pWrapper->pParseCtx, pWrapper->pCatalogReq, pResultMeta, pQuery);
}
if (TSDB_CODE_SUCCESS == code) {
code = phaseAsyncQuery(pWrapper);
}
if (TSDB_CODE_SUCCESS != code) {
tscError("0x%" PRIx64 " error happens, code:%d - %s, reqId:0x%" PRIx64, pWrapper->pRequest->self, code,
tstrerror(code), pWrapper->pRequest->requestId);
destorySqlCallbackWrapper(pWrapper);
terrno = code;
pRequest->code = code;
pRequest->body.queryFp(pRequest->body.param, pRequest, code);
}
}
void continueInsertFromCsv(SSqlCallbackWrapper *pWrapper, SRequestObj *pRequest) {
int32_t code = qParseSqlSyntax(pWrapper->pParseCtx, &pRequest->pQuery, pWrapper->pCatalogReq);
if (TSDB_CODE_SUCCESS == code) {
code = phaseAsyncQuery(pWrapper);
}
if (TSDB_CODE_SUCCESS != code) {
tscError("0x%" PRIx64 " error happens, code:%d - %s, reqId:0x%" PRIx64, pWrapper->pRequest->self, code,
tstrerror(code), pWrapper->pRequest->requestId);
destorySqlCallbackWrapper(pWrapper);
terrno = code;
pRequest->code = code;
pRequest->body.queryFp(pRequest->body.param, pRequest, code);
}
}
void taos_query_a(TAOS *taos, const char *sql, __taos_async_fn_t fp, void *param) {
int64_t connId = *(int64_t *)taos;
tscDebug("taos_query_a start with sql:%s", sql);
taosAsyncQueryImpl(connId, sql, fp, param, false);
tscDebug("taos_query_a end with sql:%s", sql);
}
void taos_query_a_with_reqid(TAOS *taos, const char *sql, __taos_async_fn_t fp, void *param, int64_t reqid) {
int64_t connId = *(int64_t *)taos;
taosAsyncQueryImplWithReqid(connId, sql, fp, param, false, reqid);
}
int32_t createParseContext(const SRequestObj *pRequest, SParseContext **pCxt) {
const STscObj *pTscObj = pRequest->pTscObj;
*pCxt = taosMemoryCalloc(1, sizeof(SParseContext));
if (*pCxt == NULL) {
return TSDB_CODE_OUT_OF_MEMORY;
}
**pCxt = (SParseContext){.requestId = pRequest->requestId,
.requestRid = pRequest->self,
.acctId = pTscObj->acctId,
.db = pRequest->pDb,
.topicQuery = false,
.pSql = pRequest->sqlstr,
.sqlLen = pRequest->sqlLen,
.pMsg = pRequest->msgBuf,
.msgLen = ERROR_MSG_BUF_DEFAULT_SIZE,
.pTransporter = pTscObj->pAppInfo->pTransporter,
.pStmtCb = NULL,
.pUser = pTscObj->user,
.isSuperUser = (0 == strcmp(pTscObj->user, TSDB_DEFAULT_USER)),
.enableSysInfo = pTscObj->sysInfo,
.async = true,
.svrVer = pTscObj->sVer,
.nodeOffline = (pTscObj->pAppInfo->onlineDnodes < pTscObj->pAppInfo->totalDnodes),
.allocatorId = pRequest->allocatorRefId};
return TSDB_CODE_SUCCESS;
}
void doAsyncQuery(SRequestObj *pRequest, bool updateMetaForce) {
STscObj *pTscObj = pRequest->pTscObj;
SSqlCallbackWrapper *pWrapper = NULL;
int32_t code = TSDB_CODE_SUCCESS;
if (pRequest->retry++ > REQUEST_TOTAL_EXEC_TIMES) {
code = pRequest->prevCode;
terrno = code;
pRequest->code = code;
tscDebug("call sync query cb with code: %s", tstrerror(code));
pRequest->body.queryFp(pRequest->body.param, pRequest, code);
return;
}
if (TSDB_CODE_SUCCESS == code) {
pWrapper = taosMemoryCalloc(1, sizeof(SSqlCallbackWrapper));
if (pWrapper == NULL) {
code = TSDB_CODE_OUT_OF_MEMORY;
} else {
pWrapper->pRequest = pRequest;
}
}
if (TSDB_CODE_SUCCESS == code) {
code = createParseContext(pRequest, &pWrapper->pParseCtx);
}
if (TSDB_CODE_SUCCESS == code) {
pWrapper->pParseCtx->mgmtEpSet = getEpSet_s(&pTscObj->pAppInfo->mgmtEp);
code = catalogGetHandle(pTscObj->pAppInfo->clusterId, &pWrapper->pParseCtx->pCatalog);
}
if (TSDB_CODE_SUCCESS == code) {
int64_t syntaxStart = taosGetTimestampUs();
pWrapper->pCatalogReq = taosMemoryCalloc(1, sizeof(SCatalogReq));
if (pWrapper->pCatalogReq == NULL) {
code = TSDB_CODE_OUT_OF_MEMORY;
} else {
pWrapper->pCatalogReq->forceUpdate = updateMetaForce;
pWrapper->pCatalogReq->qNodeRequired = qnodeRequired(pRequest);
code = qParseSqlSyntax(pWrapper->pParseCtx, &pRequest->pQuery, pWrapper->pCatalogReq);
}
pRequest->metric.parseCostUs += taosGetTimestampUs() - syntaxStart;
}
if (TSDB_CODE_SUCCESS == code) {
pRequest->stmtType = pRequest->pQuery->pRoot->type;
code = phaseAsyncQuery(pWrapper);
}
if (TSDB_CODE_SUCCESS != code) {
tscError("0x%" PRIx64 " error happens, code:%d - %s, reqId:0x%" PRIx64, pRequest->self, code, tstrerror(code),
pRequest->requestId);
destorySqlCallbackWrapper(pWrapper);
qDestroyQuery(pRequest->pQuery);
pRequest->pQuery = NULL;
if (NEED_CLIENT_HANDLE_ERROR(code)) {
tscDebug("0x%" PRIx64 " client retry to handle the error, code:%d - %s, tryCount:%d, reqId:0x%" PRIx64,
pRequest->self, code, tstrerror(code), pRequest->retry, pRequest->requestId);
pRequest->prevCode = code;
doAsyncQuery(pRequest, true);
return;
}
terrno = code;
pRequest->code = code;
pRequest->body.queryFp(pRequest->body.param, pRequest, code);
}
}
static void fetchCallback(void *pResult, void *param, int32_t code) {
SRequestObj *pRequest = (SRequestObj *)param;
SReqResultInfo *pResultInfo = &pRequest->body.resInfo;
tscDebug("0x%" PRIx64 " enter scheduler fetch cb, code:%d - %s, reqId:0x%" PRIx64, pRequest->self, code,
tstrerror(code), pRequest->requestId);
pResultInfo->pData = pResult;
pResultInfo->numOfRows = 0;
if (code != TSDB_CODE_SUCCESS) {
pRequest->code = code;
taosMemoryFreeClear(pResultInfo->pData);
pRequest->body.fetchFp(pRequest->body.param, pRequest, 0);
return;
}
if (pRequest->code != TSDB_CODE_SUCCESS) {
taosMemoryFreeClear(pResultInfo->pData);
pRequest->body.fetchFp(pRequest->body.param, pRequest, 0);
return;
}
pRequest->code =
setQueryResultFromRsp(pResultInfo, (const SRetrieveTableRsp *)pResultInfo->pData, pResultInfo->convertUcs4, true);
if (pRequest->code != TSDB_CODE_SUCCESS) {
pResultInfo->numOfRows = 0;
pRequest->code = code;
tscError("0x%" PRIx64 " fetch results failed, code:%s, reqId:0x%" PRIx64, pRequest->self, tstrerror(code),
pRequest->requestId);
} else {
tscDebug("0x%" PRIx64 " fetch results, numOfRows:%" PRId64 " total Rows:%" PRId64 ", complete:%d, reqId:0x%" PRIx64,
pRequest->self, pResultInfo->numOfRows, pResultInfo->totalRows, pResultInfo->completed,
pRequest->requestId);
STscObj *pTscObj = pRequest->pTscObj;
SAppClusterSummary *pActivity = &pTscObj->pAppInfo->summary;
atomic_add_fetch_64((int64_t *)&pActivity->fetchBytes, pRequest->body.resInfo.payloadLen);
}
pRequest->body.fetchFp(pRequest->body.param, pRequest, pResultInfo->numOfRows);
}
void taos_fetch_rows_a(TAOS_RES *res, __taos_async_fn_t fp, void *param) {
if (ASSERT(res != NULL && fp != NULL)) {
tscError("taos_fetch_rows_a invalid paras");
return;
}
if (ASSERT(TD_RES_QUERY(res))) {
tscError("taos_fetch_rows_a res is NULL");
return;
}
SRequestObj *pRequest = res;
pRequest->body.fetchFp = fp;
pRequest->body.param = param;
SReqResultInfo *pResultInfo = &pRequest->body.resInfo;
// this query has no results or error exists, return directly
if (taos_num_fields(pRequest) == 0 || pRequest->code != TSDB_CODE_SUCCESS) {
pResultInfo->numOfRows = 0;
pRequest->body.fetchFp(param, pRequest, pResultInfo->numOfRows);
return;
}
// all data has returned to App already, no need to try again
if (pResultInfo->completed) {
// it is a local executed query, no need to do async fetch
if (QUERY_EXEC_MODE_SCHEDULE != pRequest->body.execMode) {
if (pResultInfo->localResultFetched) {
pResultInfo->numOfRows = 0;
pResultInfo->current = 0;
} else {
pResultInfo->localResultFetched = true;
}
} else {
pResultInfo->numOfRows = 0;
}
pRequest->body.fetchFp(param, pRequest, pResultInfo->numOfRows);
return;
}
SSchedulerReq req = {
.syncReq = false,
.fetchFp = fetchCallback,
.cbParam = pRequest,
};
schedulerFetchRows(pRequest->body.queryJob, &req);
}
void taos_fetch_raw_block_a(TAOS_RES *res, __taos_async_fn_t fp, void *param) {
if (ASSERT(res != NULL && fp != NULL)) {
tscError("taos_fetch_rows_a invalid paras");
return;
}
if (ASSERT(TD_RES_QUERY(res))) {
tscError("taos_fetch_rows_a res is NULL");
return;
}
SRequestObj *pRequest = res;
SReqResultInfo *pResultInfo = &pRequest->body.resInfo;
// set the current block is all consumed
pResultInfo->convertUcs4 = false;
// it is a local executed query, no need to do async fetch
taos_fetch_rows_a(pRequest, fp, param);
}
const void *taos_get_raw_block(TAOS_RES *res) {
if (ASSERT(res != NULL)) {
tscError("taos_fetch_rows_a invalid paras");
return NULL;
}
if (ASSERT(TD_RES_QUERY(res))) {
tscError("taos_fetch_rows_a res is NULL");
return NULL;
}
SRequestObj *pRequest = res;
return pRequest->body.resInfo.pData;
}
int taos_get_db_route_info(TAOS *taos, const char *db, TAOS_DB_ROUTE_INFO *dbInfo) {
if (NULL == taos) {
terrno = TSDB_CODE_TSC_DISCONNECTED;
return terrno;
}
if (NULL == db || NULL == dbInfo) {
tscError("invalid input param, db:%p, dbInfo:%p", db, dbInfo);
terrno = TSDB_CODE_TSC_INVALID_INPUT;
return terrno;
}
int64_t connId = *(int64_t *)taos;
SRequestObj *pRequest = NULL;
char *sql = "taos_get_db_route_info";
int32_t code = buildRequest(connId, sql, strlen(sql), NULL, false, &pRequest, 0);
if (code != TSDB_CODE_SUCCESS) {
terrno = code;
return terrno;
}
STscObj *pTscObj = pRequest->pTscObj;
SCatalog *pCtg = NULL;
code = catalogGetHandle(pTscObj->pAppInfo->clusterId, &pCtg);
if (code != TSDB_CODE_SUCCESS) {
goto _return;
}
SRequestConnInfo conn = {
.pTrans = pTscObj->pAppInfo->pTransporter, .requestId = pRequest->requestId, .requestObjRefId = pRequest->self};
conn.mgmtEps = getEpSet_s(&pTscObj->pAppInfo->mgmtEp);
char dbFName[TSDB_DB_FNAME_LEN] = {0};
snprintf(dbFName, sizeof(dbFName), "%d.%s", pTscObj->acctId, db);
code = catalogGetDBVgInfo(pCtg, &conn, dbFName, dbInfo);
if (code) {
goto _return;
}
_return:
terrno = code;
destroyRequest(pRequest);
return code;
}
int taos_get_table_vgId(TAOS *taos, const char *db, const char *table, int *vgId) {
if (NULL == taos) {
terrno = TSDB_CODE_TSC_DISCONNECTED;
return terrno;
}
if (NULL == db || NULL == table || NULL == vgId) {
tscError("invalid input param, db:%p, table:%p, vgId:%p", db, table, vgId);
terrno = TSDB_CODE_TSC_INVALID_INPUT;
return terrno;
}
int64_t connId = *(int64_t *)taos;
SRequestObj *pRequest = NULL;
char *sql = "taos_get_table_vgId";
int32_t code = buildRequest(connId, sql, strlen(sql), NULL, false, &pRequest, 0);
if (code != TSDB_CODE_SUCCESS) {
return terrno;
}
pRequest->syncQuery = true;
STscObj *pTscObj = pRequest->pTscObj;
SCatalog *pCtg = NULL;
code = catalogGetHandle(pTscObj->pAppInfo->clusterId, &pCtg);
if (code != TSDB_CODE_SUCCESS) {
goto _return;
}
SRequestConnInfo conn = {
.pTrans = pTscObj->pAppInfo->pTransporter, .requestId = pRequest->requestId, .requestObjRefId = pRequest->self};
conn.mgmtEps = getEpSet_s(&pTscObj->pAppInfo->mgmtEp);
SName tableName;
toName(pTscObj->acctId, db, table, &tableName);
SVgroupInfo vgInfo;
code = catalogGetTableHashVgroup(pCtg, &conn, &tableName, &vgInfo);
if (code) {
goto _return;
}
*vgId = vgInfo.vgId;
_return:
terrno = code;
destroyRequest(pRequest);
return code;
}
int taos_get_tables_vgId(TAOS *taos, const char *db, const char *table[], int tableNum, int *vgId) {
if (NULL == taos) {
terrno = TSDB_CODE_TSC_DISCONNECTED;
return terrno;
}
if (NULL == db || NULL == table || NULL == vgId || tableNum <= 0) {
tscError("invalid input param, db:%p, table:%p, vgId:%p, tbNum:%d", db, table, vgId, tableNum);
terrno = TSDB_CODE_TSC_INVALID_INPUT;
return terrno;
}
int64_t connId = *(int64_t *)taos;
SRequestObj *pRequest = NULL;
char *sql = "taos_get_table_vgId";
int32_t code = buildRequest(connId, sql, strlen(sql), NULL, false, &pRequest, 0);
if (code != TSDB_CODE_SUCCESS) {
return terrno;
}
pRequest->syncQuery = true;
STscObj *pTscObj = pRequest->pTscObj;
SCatalog *pCtg = NULL;
code = catalogGetHandle(pTscObj->pAppInfo->clusterId, &pCtg);
if (code != TSDB_CODE_SUCCESS) {
goto _return;
}
SRequestConnInfo conn = {
.pTrans = pTscObj->pAppInfo->pTransporter, .requestId = pRequest->requestId, .requestObjRefId = pRequest->self};
conn.mgmtEps = getEpSet_s(&pTscObj->pAppInfo->mgmtEp);
code = catalogGetTablesHashVgId(pCtg, &conn, pTscObj->acctId, db, table, tableNum, vgId);
if (code) {
goto _return;
}
_return:
terrno = code;
destroyRequest(pRequest);
return code;
}
int taos_load_table_info(TAOS *taos, const char *tableNameList) {
if (NULL == taos) {
terrno = TSDB_CODE_TSC_DISCONNECTED;
return terrno;
}
int64_t connId = *(int64_t *)taos;
const int32_t MAX_TABLE_NAME_LENGTH = 12 * 1024 * 1024; // 12MB list
int32_t code = 0;
SRequestObj *pRequest = NULL;
SCatalogReq catalogReq = {0};
if (NULL == tableNameList) {
return TSDB_CODE_SUCCESS;
}
int32_t length = (int32_t)strlen(tableNameList);
if (0 == length) {
return TSDB_CODE_SUCCESS;
} else if (length > MAX_TABLE_NAME_LENGTH) {
tscError("tableNameList too long, length:%d, maximum allowed:%d", length, MAX_TABLE_NAME_LENGTH);
return TSDB_CODE_TSC_INVALID_OPERATION;
}
char *sql = "taos_load_table_info";
code = buildRequest(connId, sql, strlen(sql), NULL, false, &pRequest, 0);
if (code != TSDB_CODE_SUCCESS) {
terrno = code;
goto _return;
}
STscObj *pTscObj = pRequest->pTscObj;
code = transferTableNameList(tableNameList, pTscObj->acctId, pTscObj->db, &catalogReq.pTableMeta);
if (code) {
goto _return;
}
SCatalog *pCtg = NULL;
code = catalogGetHandle(pTscObj->pAppInfo->clusterId, &pCtg);
if (code != TSDB_CODE_SUCCESS) {
goto _return;
}
SRequestConnInfo conn = {
.pTrans = pTscObj->pAppInfo->pTransporter, .requestId = pRequest->requestId, .requestObjRefId = pRequest->self};
conn.mgmtEps = getEpSet_s(&pTscObj->pAppInfo->mgmtEp);
code = catalogAsyncGetAllMeta(pCtg, &conn, &catalogReq, syncCatalogFn, pRequest->body.param, NULL);
if (code) {
goto _return;
}
SSyncQueryParam *pParam = pRequest->body.param;
tsem_wait(&pParam->sem);
_return:
taosArrayDestroy(catalogReq.pTableMeta);
destroyRequest(pRequest);
return code;
}
TAOS_STMT *taos_stmt_init(TAOS *taos) {
STscObj *pObj = acquireTscObj(*(int64_t *)taos);
if (NULL == pObj) {
tscError("invalid parameter for %s", __FUNCTION__);
terrno = TSDB_CODE_TSC_DISCONNECTED;
return NULL;
}
TAOS_STMT *pStmt = stmtInit(pObj, 0);
releaseTscObj(*(int64_t *)taos);
return pStmt;
}
TAOS_STMT *taos_stmt_init_with_reqid(TAOS *taos, int64_t reqid) {
STscObj *pObj = acquireTscObj(*(int64_t *)taos);
if (NULL == pObj) {
tscError("invalid parameter for %s", __FUNCTION__);
terrno = TSDB_CODE_TSC_DISCONNECTED;
return NULL;
}
TAOS_STMT *pStmt = stmtInit(pObj, reqid);
releaseTscObj(*(int64_t *)taos);
return pStmt;
}
int taos_stmt_prepare(TAOS_STMT *stmt, const char *sql, unsigned long length) {
if (stmt == NULL || sql == NULL) {
tscError("NULL parameter for %s", __FUNCTION__);
terrno = TSDB_CODE_INVALID_PARA;
return terrno;
}
return stmtPrepare(stmt, sql, length);
}
int taos_stmt_set_tbname_tags(TAOS_STMT *stmt, const char *name, TAOS_MULTI_BIND *tags) {
if (stmt == NULL || name == NULL) {
tscError("NULL parameter for %s", __FUNCTION__);
terrno = TSDB_CODE_INVALID_PARA;
return terrno;
}
int32_t code = stmtSetTbName(stmt, name);
if (code) {
return code;
}
if (tags) {
return stmtSetTbTags(stmt, tags);
}
return TSDB_CODE_SUCCESS;
}
int taos_stmt_set_tbname(TAOS_STMT *stmt, const char *name) {
if (stmt == NULL || name == NULL) {
tscError("NULL parameter for %s", __FUNCTION__);
terrno = TSDB_CODE_INVALID_PARA;
return terrno;
}
return stmtSetTbName(stmt, name);
}
int taos_stmt_set_tags(TAOS_STMT *stmt, TAOS_MULTI_BIND *tags) {
if (stmt == NULL || tags == NULL) {
tscError("NULL parameter for %s", __FUNCTION__);
terrno = TSDB_CODE_INVALID_PARA;
return terrno;
}
return stmtSetTbTags(stmt, tags);
}
int taos_stmt_set_sub_tbname(TAOS_STMT *stmt, const char *name) { return taos_stmt_set_tbname(stmt, name); }
int taos_stmt_get_tag_fields(TAOS_STMT *stmt, int *fieldNum, TAOS_FIELD_E **fields) {
if (stmt == NULL || NULL == fieldNum) {
tscError("NULL parameter for %s", __FUNCTION__);
terrno = TSDB_CODE_INVALID_PARA;
return terrno;
}
return stmtGetTagFields(stmt, fieldNum, fields);
}
int taos_stmt_get_col_fields(TAOS_STMT *stmt, int *fieldNum, TAOS_FIELD_E **fields) {
if (stmt == NULL || NULL == fieldNum) {
tscError("NULL parameter for %s", __FUNCTION__);
terrno = TSDB_CODE_INVALID_PARA;
return terrno;
}
return stmtGetColFields(stmt, fieldNum, fields);
}
// let stmt to reclaim TAOS_FIELD_E that was allocated by `taos_stmt_get_tag_fields`/`taos_stmt_get_col_fields`
void taos_stmt_reclaim_fields(TAOS_STMT *stmt, TAOS_FIELD_E *fields) {
(void)stmt;
if (!fields) return;
taosMemoryFree(fields);
}
int taos_stmt_bind_param(TAOS_STMT *stmt, TAOS_MULTI_BIND *bind) {
if (stmt == NULL || bind == NULL) {
tscError("NULL parameter for %s", __FUNCTION__);
terrno = TSDB_CODE_INVALID_PARA;
return terrno;
}
if (bind->num > 1) {
tscError("invalid bind number %d for %s", bind->num, __FUNCTION__);
terrno = TSDB_CODE_INVALID_PARA;
return terrno;
}
return stmtBindBatch(stmt, bind, -1);
}
int taos_stmt_bind_param_batch(TAOS_STMT *stmt, TAOS_MULTI_BIND *bind) {
if (stmt == NULL || bind == NULL) {
tscError("NULL parameter for %s", __FUNCTION__);
terrno = TSDB_CODE_INVALID_PARA;
return terrno;
}
if (bind->num <= 0 || bind->num > INT16_MAX) {
tscError("invalid bind num %d", bind->num);
terrno = TSDB_CODE_INVALID_PARA;
return terrno;
}
int32_t insert = 0;
stmtIsInsert(stmt, &insert);
if (0 == insert && bind->num > 1) {
tscError("only one row data allowed for query");
terrno = TSDB_CODE_INVALID_PARA;
return terrno;
}
return stmtBindBatch(stmt, bind, -1);
}
int taos_stmt_bind_single_param_batch(TAOS_STMT *stmt, TAOS_MULTI_BIND *bind, int colIdx) {
if (stmt == NULL || bind == NULL) {
tscError("NULL parameter for %s", __FUNCTION__);
terrno = TSDB_CODE_INVALID_PARA;
return terrno;
}
if (colIdx < 0) {
tscError("invalid bind column idx %d", colIdx);
terrno = TSDB_CODE_INVALID_PARA;
return terrno;
}
int32_t insert = 0;
stmtIsInsert(stmt, &insert);
if (0 == insert && bind->num > 1) {
tscError("only one row data allowed for query");
terrno = TSDB_CODE_INVALID_PARA;
return terrno;
}
return stmtBindBatch(stmt, bind, colIdx);
}
int taos_stmt_add_batch(TAOS_STMT *stmt) {
if (stmt == NULL) {
tscError("NULL parameter for %s", __FUNCTION__);
terrno = TSDB_CODE_INVALID_PARA;
return terrno;
}
return stmtAddBatch(stmt);
}
int taos_stmt_execute(TAOS_STMT *stmt) {
if (stmt == NULL) {
tscError("NULL parameter for %s", __FUNCTION__);
terrno = TSDB_CODE_INVALID_PARA;
return terrno;
}
return stmtExec(stmt);
}
int taos_stmt_is_insert(TAOS_STMT *stmt, int *insert) {
if (stmt == NULL || insert == NULL) {
tscError("NULL parameter for %s", __FUNCTION__);
terrno = TSDB_CODE_INVALID_PARA;
return terrno;
}
return stmtIsInsert(stmt, insert);
}
int taos_stmt_num_params(TAOS_STMT *stmt, int *nums) {
if (stmt == NULL || nums == NULL) {
tscError("NULL parameter for %s", __FUNCTION__);
terrno = TSDB_CODE_INVALID_PARA;
return terrno;
}
return stmtGetParamNum(stmt, nums);
}
int taos_stmt_get_param(TAOS_STMT *stmt, int idx, int *type, int *bytes) {
if (stmt == NULL || type == NULL || NULL == bytes || idx < 0) {
tscError("invalid parameter for %s", __FUNCTION__);
terrno = TSDB_CODE_INVALID_PARA;
return terrno;
}
return stmtGetParam(stmt, idx, type, bytes);
}
TAOS_RES *taos_stmt_use_result(TAOS_STMT *stmt) {
if (stmt == NULL) {
tscError("NULL parameter for %s", __FUNCTION__);
terrno = TSDB_CODE_INVALID_PARA;
return NULL;
}
return stmtUseResult(stmt);
}
char *taos_stmt_errstr(TAOS_STMT *stmt) { return (char *)stmtErrstr(stmt); }
int taos_stmt_affected_rows(TAOS_STMT *stmt) {
if (stmt == NULL) {
tscError("NULL parameter for %s", __FUNCTION__);
terrno = TSDB_CODE_INVALID_PARA;
return 0;
}
return stmtAffectedRows(stmt);
}
int taos_stmt_affected_rows_once(TAOS_STMT *stmt) {
if (stmt == NULL) {
tscError("NULL parameter for %s", __FUNCTION__);
terrno = TSDB_CODE_INVALID_PARA;
return 0;
}
return stmtAffectedRowsOnce(stmt);
}
int taos_stmt_close(TAOS_STMT *stmt) {
if (stmt == NULL) {
tscError("NULL parameter for %s", __FUNCTION__);
terrno = TSDB_CODE_INVALID_PARA;
return terrno;
}
return stmtClose(stmt);
}
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