149 lines
3.2 KiB
C
149 lines
3.2 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_TQ_H_
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#define _TD_TQ_H_
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#include "os.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct tmqMsgHead {
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int32_t headLen;
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int32_t protoVer;
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int64_t cgId;
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int64_t topicId;
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int64_t clientId;
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int32_t checksum;
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int32_t msgType;
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} tmqMsgHead;
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//TODO: put msgs into common
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typedef struct tmqConnectReq {
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tmqMsgHead head;
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} tmqConnectReq;
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typedef struct tmqConnectResp {
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tmqMsgHead head;
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int8_t status;
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} tmqConnectResp;
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typedef struct tmqDisconnectReq {
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tmqMsgHead head;
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} tmqDisconnectReq;
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typedef struct tmqDisconnectResp {
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tmqMsgHead head;
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int8_t status;
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} tmqDiconnectResp;
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typedef struct tmqConsumeReq {
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tmqMsgHead head;
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int64_t commitOffset;
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} tmqConsumeReq;
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typedef struct tmqConsumeResp {
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tmqMsgHead head;
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char content[];
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} tmqConsumeResp;
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//
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typedef struct tmqMnodeSubscribeReq {
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tmqMsgHead head;
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int64_t topicLen;
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char topic[];
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} tmqSubscribeReq;
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typedef struct tmqMnodeSubscribeResp {
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tmqMsgHead head;
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int64_t vgId;
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char ep[]; //TSDB_EP_LEN
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} tmqSubscribeResp;
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typedef struct tmqHeartbeatReq {
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} tmqHeartbeatReq;
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typedef struct tmqHeartbeatResp {
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} tmqHeartbeatResp;
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typedef struct tqTopicVhandle {
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//name
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//
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//executor for filter
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//
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//callback for mnode
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//
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} tqTopicVhandle;
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typedef struct STQ {
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//the set for topics
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//key=topicName: str
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//value=tqTopicVhandle
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//a map
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//key=<topic: str, cgId: int64_t>
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//value=consumeOffset: int64_t
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} STQ;
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#define TQ_BUFFER_SIZE 8
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typedef struct tqBufferItem {
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int64_t offset;
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void* executor;
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void* content;
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} tqBufferItem;
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typedef struct tqGroupHandle {
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char* topic; //c style, end with '\0'
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int64_t cgId;
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void* ahandle;
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int64_t consumeOffset;
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int32_t head;
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int32_t tail;
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tqBufferItem buffer[TQ_BUFFER_SIZE];
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} tqGroupHandle;
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//init in each vnode
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STQ* tqInit(void* ref_func(void*), void* unref_func(void*));
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void tqCleanUp(STQ*);
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//void* will be replace by a msg type
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int tqPushMsg(STQ*, void* msg, int64_t version);
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int tqCommit(STQ*);
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//void* will be replace by a msg type
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int tqHandleConsumeMsg(STQ*, tmqConsumeReq* msg);
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tqGroupHandle* tqFindGHandleBycId(STQ*, int64_t cId);
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int tqOpenTCGroup(STQ*, int64_t topicId, int64_t cgId, int64_t cId);
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int tqCloseTCGroup(STQ*, int64_t topicId, int64_t cgId, int64_t cId);
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int tqMoveOffsetToNext(tqGroupHandle*);
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int tqResetOffset(STQ*, int64_t topicId, int64_t cgId, int64_t offset);
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int tqFetchMsg(tqGroupHandle*, void*);
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int tqRegisterContext(tqGroupHandle*, void*);
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int tqLaunchQuery(STQ*, int64_t topicId, int64_t cgId, void* query);
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int tqSendLaunchQuery(STQ*, int64_t topicId, int64_t cgId, void* query);
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#ifdef __cplusplus
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}
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#endif
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#endif /*_TD_TQ_H_*/
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