115 lines
2.3 KiB
C
115 lines
2.3 KiB
C
/*
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* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
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*
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* This program is free software: you can use, redistribute, and/or modify
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* it under the terms of the GNU Affero General Public License, version 3
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* or later ("AGPL"), as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _TD_QNODE_H_
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#define _TD_QNODE_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct {
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uint64_t numOfStartTask;
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uint64_t numOfStopTask;
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uint64_t numOfRecvedFetch;
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uint64_t numOfSentHb;
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uint64_t numOfSentFetch;
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uint64_t numOfTaskInQueue;
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uint64_t numOfFetchInQueue;
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uint64_t numOfErrors;
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} SQnodeStat;
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/* start Task msg */
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typedef struct {
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uint32_t schedulerIp;
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uint16_t schedulerPort;
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int64_t taskId;
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int64_t queryId;
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uint32_t srcIp;
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uint16_t srcPort;
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} SQnodeStartTaskMsg;
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/* stop Task msg */
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typedef struct {
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int64_t taskId;
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} SQnodeStopTaskMsg;
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/* start/stop Task msg response */
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typedef struct {
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int64_t taskId;
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int32_t code;
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} SQnodeTaskRespMsg;
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/* Task status msg */
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typedef struct {
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int64_t taskId;
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int32_t status;
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int64_t queryId;
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} SQnodeTaskStatusMsg;
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/* Qnode/Scheduler heartbeat msg */
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typedef struct {
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int32_t status;
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int32_t load;
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} SQnodeHeartbeatMsg;
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/* Qnode sent/received msg */
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typedef struct {
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int8_t msgType;
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int32_t msgLen;
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char msg[];
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} SQnodeMsg;
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/**
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* Start one Qnode in Dnode.
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* @return Error Code.
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*/
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int32_t qnodeStart();
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/**
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* Stop Qnode in Dnode.
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*
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* @param qnodeId Qnode ID to stop, -1 for all Qnodes.
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*/
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void qnodeStop(int64_t qnodeId);
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/**
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* Get the statistical information of Qnode
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*
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* @param qnodeId Qnode ID to get statistics, -1 for all
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* @param stat Statistical information.
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* @return Error Code.
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*/
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int32_t qnodeGetStatistics(int64_t qnodeId, SQnodeStat *stat);
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/**
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* Interface for processing Qnode messages.
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*
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* @param pMsg Message to be processed.
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* @return Error code
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*/
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void qnodeProcessReq(SRpcMsg *pMsg);
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#ifdef __cplusplus
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}
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#endif
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#endif /*_TD_QNODE_H_*/ |