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homework-jianmu/source/client/src/tmq.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 "clientInt.h"
#include "clientLog.h"
#include "parser.h"
#include "tdatablock.h"
#include "tdef.h"
#include "tglobal.h"
#include "tmsgtype.h"
#include "tqueue.h"
#include "tref.h"
#include "ttimer.h"
int32_t tmqAskEp(tmq_t* tmq, bool async);
typedef struct {
int8_t inited;
tmr_h timer;
} SMqMgmt;
static SMqMgmt tmqMgmt = {0};
typedef struct {
int8_t tmqRspType;
int32_t epoch;
} SMqRspWrapper;
typedef struct {
int8_t tmqRspType;
int32_t epoch;
SMqAskEpRsp msg;
} SMqAskEpRspWrapper;
struct tmq_list_t {
SArray container;
};
struct tmq_topic_vgroup_t {
SMqOffset offset;
};
struct tmq_topic_vgroup_list_t {
SArray container; // SArray<tmq_topic_vgroup_t*>
};
struct tmq_conf_t {
char clientId[256];
char groupId[TSDB_CGROUP_LEN];
int8_t autoCommit;
int8_t resetOffset;
int8_t withTbName;
uint16_t port;
int32_t autoCommitInterval;
char* ip;
char* user;
char* pass;
/*char* db;*/
tmq_commit_cb* commitCb;
void* commitCbUserParam;
};
struct tmq_t {
// conf
char groupId[TSDB_CGROUP_LEN];
char clientId[256];
int8_t withTbName;
int8_t autoCommit;
int32_t autoCommitInterval;
int32_t resetOffsetCfg;
int64_t consumerId;
tmq_commit_cb* commitCb;
void* commitCbUserParam;
// status
int8_t status;
int32_t epoch;
#if 0
int8_t epStatus;
int32_t epSkipCnt;
#endif
int64_t pollCnt;
// timer
tmr_h hbTimer;
tmr_h reportTimer;
tmr_h commitTimer;
// connection
STscObj* pTscObj;
// container
SArray* clientTopics; // SArray<SMqClientTopic>
STaosQueue* mqueue; // queue of rsp
STaosQall* qall;
STaosQueue* delayedTask; // delayed task queue for heartbeat and auto commit
// ctl
tsem_t rspSem;
};
enum {
TMQ_VG_STATUS__IDLE = 0,
TMQ_VG_STATUS__WAIT,
};
enum {
TMQ_CONSUMER_STATUS__INIT = 0,
TMQ_CONSUMER_STATUS__READY,
TMQ_CONSUMER_STATUS__NO_TOPIC,
};
enum {
TMQ_DELAYED_TASK__HB = 1,
TMQ_DELAYED_TASK__REPORT,
TMQ_DELAYED_TASK__COMMIT,
};
typedef struct {
// statistics
int64_t pollCnt;
// offset
int64_t committedOffset;
int64_t currentOffset;
// connection info
int32_t vgId;
int32_t vgStatus;
int32_t vgSkipCnt;
SEpSet epSet;
} SMqClientVg;
typedef struct {
// subscribe info
char* topicName;
char db[TSDB_DB_FNAME_LEN];
SArray* vgs; // SArray<SMqClientVg>
int8_t isSchemaAdaptive;
SSchemaWrapper schema;
} SMqClientTopic;
typedef struct {
int8_t tmqRspType;
int32_t epoch;
SMqClientVg* vgHandle;
SMqClientTopic* topicHandle;
SMqDataBlkRsp msg;
} SMqPollRspWrapper;
typedef struct {
tmq_t* tmq;
tsem_t rspSem;
tmq_resp_err_t rspErr;
} SMqSubscribeCbParam;
typedef struct {
tmq_t* tmq;
int32_t code;
int32_t async;
tsem_t rspSem;
} SMqAskEpCbParam;
typedef struct {
tmq_t* tmq;
SMqClientVg* pVg;
SMqClientTopic* pTopic;
int32_t epoch;
int32_t vgId;
tsem_t rspSem;
} SMqPollCbParam;
typedef struct {
tmq_t* tmq;
int8_t async;
int8_t automatic;
int8_t freeOffsets;
tmq_commit_cb* userCb;
tsem_t rspSem;
tmq_resp_err_t rspErr;
SArray* offsets;
void* userParam;
} SMqCommitCbParam;
typedef struct {
tmq_t* tmq;
int8_t automatic;
int8_t async;
int8_t freeOffsets;
int32_t waitingRspNum;
int32_t totalRspNum;
tmq_resp_err_t rspErr;
tmq_commit_cb* userCb;
SArray* successfulOffsets;
SArray* failedOffsets;
void* userParam;
tsem_t rspSem;
} SMqCommitCbParamSet;
typedef struct {
SMqCommitCbParamSet* params;
STqOffset* pOffset;
} SMqCommitCbParam2;
tmq_conf_t* tmq_conf_new() {
tmq_conf_t* conf = taosMemoryCalloc(1, sizeof(tmq_conf_t));
conf->withTbName = false;
conf->autoCommit = true;
conf->autoCommitInterval = 5000;
conf->resetOffset = TMQ_CONF__RESET_OFFSET__EARLIEAST;
return conf;
}
void tmq_conf_destroy(tmq_conf_t* conf) {
if (conf) {
if (conf->ip) taosMemoryFree(conf->ip);
if (conf->user) taosMemoryFree(conf->user);
if (conf->pass) taosMemoryFree(conf->pass);
taosMemoryFree(conf);
}
}
tmq_conf_res_t tmq_conf_set(tmq_conf_t* conf, const char* key, const char* value) {
if (strcmp(key, "group.id") == 0) {
strcpy(conf->groupId, value);
return TMQ_CONF_OK;
}
if (strcmp(key, "client.id") == 0) {
strcpy(conf->clientId, value);
return TMQ_CONF_OK;
}
if (strcmp(key, "enable.auto.commit") == 0) {
if (strcmp(value, "true") == 0) {
conf->autoCommit = true;
return TMQ_CONF_OK;
} else if (strcmp(value, "false") == 0) {
conf->autoCommit = false;
return TMQ_CONF_OK;
} else {
return TMQ_CONF_INVALID;
}
}
if (strcmp(key, "auto.commit.interval.ms") == 0) {
conf->autoCommitInterval = atoi(value);
return TMQ_CONF_OK;
}
if (strcmp(key, "auto.offset.reset") == 0) {
if (strcmp(value, "none") == 0) {
conf->resetOffset = TMQ_CONF__RESET_OFFSET__NONE;
return TMQ_CONF_OK;
} else if (strcmp(value, "earliest") == 0) {
conf->resetOffset = TMQ_CONF__RESET_OFFSET__EARLIEAST;
return TMQ_CONF_OK;
} else if (strcmp(value, "latest") == 0) {
conf->resetOffset = TMQ_CONF__RESET_OFFSET__LATEST;
return TMQ_CONF_OK;
} else {
return TMQ_CONF_INVALID;
}
}
if (strcmp(key, "msg.with.table.name") == 0) {
if (strcmp(value, "true") == 0) {
conf->withTbName = true;
return TMQ_CONF_OK;
} else if (strcmp(value, "false") == 0) {
conf->withTbName = false;
return TMQ_CONF_OK;
} else {
return TMQ_CONF_INVALID;
}
}
if (strcmp(key, "td.connect.ip") == 0) {
conf->ip = strdup(value);
return TMQ_CONF_OK;
}
if (strcmp(key, "td.connect.user") == 0) {
conf->user = strdup(value);
return TMQ_CONF_OK;
}
if (strcmp(key, "td.connect.pass") == 0) {
conf->pass = strdup(value);
return TMQ_CONF_OK;
}
if (strcmp(key, "td.connect.port") == 0) {
conf->port = atoi(value);
return TMQ_CONF_OK;
}
if (strcmp(key, "td.connect.db") == 0) {
/*conf->db = strdup(value);*/
return TMQ_CONF_OK;
}
return TMQ_CONF_UNKNOWN;
}
tmq_list_t* tmq_list_new() {
//
return (tmq_list_t*)taosArrayInit(0, sizeof(void*));
}
int32_t tmq_list_append(tmq_list_t* list, const char* src) {
SArray* container = &list->container;
char* topic = strdup(src);
if (taosArrayPush(container, &topic) == NULL) return -1;
return 0;
}
void tmq_list_destroy(tmq_list_t* list) {
SArray* container = &list->container;
taosArrayDestroyP(container, taosMemoryFree);
}
int32_t tmq_list_get_size(const tmq_list_t* list) {
const SArray* container = &list->container;
return taosArrayGetSize(container);
}
char** tmq_list_to_c_array(const tmq_list_t* list) {
const SArray* container = &list->container;
return container->pData;
}
static int32_t tmqMakeTopicVgKey(char* dst, const char* topicName, int32_t vg) {
return sprintf(dst, "%s:%d", topicName, vg);
}
int32_t tmqCommitCb(void* param, const SDataBuf* pMsg, int32_t code) {
SMqCommitCbParam* pParam = (SMqCommitCbParam*)param;
pParam->rspErr = code;
if (pParam->async) {
if (pParam->automatic && pParam->tmq->commitCb) {
pParam->tmq->commitCb(pParam->tmq, pParam->rspErr, (tmq_topic_vgroup_list_t*)pParam->offsets,
pParam->tmq->commitCbUserParam);
} else if (!pParam->automatic && pParam->userCb) {
pParam->userCb(pParam->tmq, pParam->rspErr, (tmq_topic_vgroup_list_t*)pParam->offsets, pParam->userParam);
}
if (pParam->freeOffsets) {
taosArrayDestroy(pParam->offsets);
}
taosMemoryFree(pParam);
} else {
tsem_post(&pParam->rspSem);
}
return 0;
}
int32_t tmqCommitCb2(void* param, const SDataBuf* pBuf, int32_t code) {
SMqCommitCbParam2* pParam = (SMqCommitCbParam2*)param;
SMqCommitCbParamSet* pParamSet = (SMqCommitCbParamSet*)pParam->params;
// push into array
if (code == 0) {
taosArrayPush(pParamSet->failedOffsets, &pParam->pOffset);
} else {
taosArrayPush(pParamSet->successfulOffsets, &pParam->pOffset);
}
// count down waiting rsp
int32_t waitingRspNum = atomic_sub_fetch_32(&pParamSet->waitingRspNum, 1);
ASSERT(waitingRspNum >= 0);
if (waitingRspNum == 0) {
// if no more waiting rsp
if (pParamSet->async) {
// call async cb func
if (pParamSet->automatic && pParamSet->tmq->commitCb) {
pParamSet->tmq->commitCb(pParamSet->tmq, pParamSet->rspErr, NULL, pParamSet->tmq->commitCbUserParam);
} else if (!pParamSet->automatic && pParamSet->userCb) {
// sem post
pParamSet->userCb(pParamSet->tmq, pParamSet->rspErr, NULL, pParamSet->userParam);
}
}
taosArrayDestroyP(pParamSet->successfulOffsets, taosMemoryFree);
taosArrayDestroyP(pParamSet->failedOffsets, taosMemoryFree);
}
return 0;
}
int32_t tmqCommitInner2(tmq_t* tmq, const tmq_topic_vgroup_list_t* offsets, int8_t automatic, int8_t async,
tmq_commit_cb* userCb, void* userParam) {
int32_t code = -1;
SMqCommitCbParamSet* pParamSet = taosMemoryCalloc(1, sizeof(SMqCommitCbParamSet));
if (pParamSet == NULL) {
terrno = TSDB_CODE_OUT_OF_MEMORY;
return -1;
}
pParamSet->tmq = tmq;
pParamSet->automatic = automatic;
pParamSet->async = async;
pParamSet->freeOffsets = 1;
pParamSet->userCb = userCb;
pParamSet->userParam = userParam;
tsem_init(&pParamSet->rspSem, 0, 0);
for (int32_t i = 0; i < taosArrayGetSize(tmq->clientTopics); i++) {
SMqClientTopic* pTopic = taosArrayGet(tmq->clientTopics, i);
for (int32_t j = 0; j < taosArrayGetSize(pTopic->vgs); j++) {
SMqClientVg* pVg = taosArrayGet(pTopic->vgs, i);
STqOffset* pOffset = taosMemoryCalloc(1, sizeof(STqOffset));
if (pOffset == NULL) {
terrno = TSDB_CODE_OUT_OF_MEMORY;
return -1;
}
int32_t tlen = strlen(tmq->groupId);
memcpy(pOffset->subKey, tmq->groupId, tlen);
pOffset->subKey[tlen] = TMQ_SEPARATOR;
strcpy(pOffset->subKey + tlen + 1, pTopic->topicName);
int32_t len;
int32_t code;
tEncodeSize(tEncodeSTqOffset, pOffset, len, code);
if (code < 0) {
ASSERT(0);
}
void* buf = taosMemoryCalloc(1, sizeof(SMsgHead) + len);
((SMsgHead*)buf)->vgId = htonl(pVg->vgId);
void* abuf = POINTER_SHIFT(buf, sizeof(SMsgHead));
SEncoder encoder;
tEncoderInit(&encoder, abuf, len);
tEncodeSTqOffset(&encoder, pOffset);
// build param
SMqCommitCbParam2* pParam = taosMemoryCalloc(1, sizeof(SMqCommitCbParam2));
pParam->params = pParamSet;
pParam->pOffset = pOffset;
// build send info
SMsgSendInfo* pMsgSendInfo = taosMemoryCalloc(1, sizeof(SMsgSendInfo));
if (pMsgSendInfo == NULL) {
// TODO
continue;
}
pMsgSendInfo->msgInfo = (SDataBuf){
.pData = buf,
.len = len,
.handle = NULL,
};
pMsgSendInfo->requestId = generateRequestId();
pMsgSendInfo->requestObjRefId = 0;
pMsgSendInfo->param = pParam;
pMsgSendInfo->fp = tmqCommitCb2;
pMsgSendInfo->msgType = TDMT_MND_MQ_COMMIT_OFFSET;
// send msg
SEpSet epSet = getEpSet_s(&tmq->pTscObj->pAppInfo->mgmtEp);
int64_t transporterId = 0;
asyncSendMsgToServer(tmq->pTscObj->pAppInfo->pTransporter, &epSet, &transporterId, pMsgSendInfo);
pParamSet->waitingRspNum++;
pParamSet->totalRspNum++;
}
}
if (!async) {
tsem_wait(&pParamSet->rspSem);
code = pParamSet->rspErr;
tsem_destroy(&pParamSet->rspSem);
} else {
code = 0;
}
if (code != 0 && async) {
if (automatic) {
tmq->commitCb(tmq, code, NULL, tmq->commitCbUserParam);
} else {
userCb(tmq, code, NULL, userParam);
}
}
if (!async) {
taosArrayDestroyP(pParamSet->successfulOffsets, taosMemoryFree);
taosArrayDestroyP(pParamSet->failedOffsets, taosMemoryFree);
}
return 0;
}
int32_t tmqCommitInner(tmq_t* tmq, const tmq_topic_vgroup_list_t* offsets, int8_t automatic, int8_t async,
tmq_commit_cb* userCb, void* userParam) {
SMqCMCommitOffsetReq req;
SArray* pOffsets = NULL;
void* buf = NULL;
SMqCommitCbParam* pParam = NULL;
SMsgSendInfo* sendInfo = NULL;
int8_t freeOffsets;
int32_t code = -1;
if (offsets == NULL) {
freeOffsets = 1;
pOffsets = taosArrayInit(0, sizeof(SMqOffset));
for (int32_t i = 0; i < taosArrayGetSize(tmq->clientTopics); i++) {
SMqClientTopic* pTopic = taosArrayGet(tmq->clientTopics, i);
for (int32_t j = 0; j < taosArrayGetSize(pTopic->vgs); j++) {
SMqClientVg* pVg = taosArrayGet(pTopic->vgs, j);
SMqOffset offset;
tstrncpy(offset.topicName, pTopic->topicName, TSDB_TOPIC_FNAME_LEN);
tstrncpy(offset.cgroup, tmq->groupId, TSDB_CGROUP_LEN);
offset.vgId = pVg->vgId;
offset.offset = pVg->currentOffset;
taosArrayPush(pOffsets, &offset);
}
}
} else {
freeOffsets = 0;
pOffsets = (SArray*)&offsets->container;
}
req.num = (int32_t)pOffsets->size;
req.offsets = pOffsets->pData;
SEncoder encoder;
tEncoderInit(&encoder, NULL, 0);
code = tEncodeSMqCMCommitOffsetReq(&encoder, &req);
if (code < 0) {
goto END;
}
int32_t tlen = encoder.pos;
buf = taosMemoryMalloc(tlen);
if (buf == NULL) {
tEncoderClear(&encoder);
goto END;
}
tEncoderClear(&encoder);
tEncoderInit(&encoder, buf, tlen);
tEncodeSMqCMCommitOffsetReq(&encoder, &req);
tEncoderClear(&encoder);
pParam = taosMemoryCalloc(1, sizeof(SMqCommitCbParam));
if (pParam == NULL) {
goto END;
}
pParam->tmq = tmq;
pParam->automatic = automatic;
pParam->async = async;
pParam->offsets = pOffsets;
pParam->freeOffsets = freeOffsets;
pParam->userCb = userCb;
pParam->userParam = userParam;
if (!async) tsem_init(&pParam->rspSem, 0, 0);
sendInfo = taosMemoryCalloc(1, sizeof(SMsgSendInfo));
if (sendInfo == NULL) goto END;
sendInfo->msgInfo = (SDataBuf){
.pData = buf,
.len = tlen,
.handle = NULL,
};
sendInfo->requestId = generateRequestId();
sendInfo->requestObjRefId = 0;
sendInfo->param = pParam;
sendInfo->fp = tmqCommitCb;
sendInfo->msgType = TDMT_MND_MQ_COMMIT_OFFSET;
SEpSet epSet = getEpSet_s(&tmq->pTscObj->pAppInfo->mgmtEp);
int64_t transporterId = 0;
asyncSendMsgToServer(tmq->pTscObj->pAppInfo->pTransporter, &epSet, &transporterId, sendInfo);
if (!async) {
tsem_wait(&pParam->rspSem);
code = pParam->rspErr;
tsem_destroy(&pParam->rspSem);
taosMemoryFree(pParam);
} else {
code = 0;
}
// avoid double free if msg is sent
buf = NULL;
END:
if (buf) taosMemoryFree(buf);
/*if (pParam) taosMemoryFree(pParam);*/
/*if (sendInfo) taosMemoryFree(sendInfo);*/
if (code != 0 && async) {
if (automatic) {
tmq->commitCb(tmq, code, (tmq_topic_vgroup_list_t*)pOffsets, tmq->commitCbUserParam);
} else {
userCb(tmq, code, (tmq_topic_vgroup_list_t*)pOffsets, userParam);
}
}
if (!async && freeOffsets) {
taosArrayDestroy(pOffsets);
}
return code;
}
void tmqAssignDelayedHbTask(void* param, void* tmrId) {
tmq_t* tmq = (tmq_t*)param;
int8_t* pTaskType = taosAllocateQitem(sizeof(int8_t), DEF_QITEM);
*pTaskType = TMQ_DELAYED_TASK__HB;
taosWriteQitem(tmq->delayedTask, pTaskType);
tsem_post(&tmq->rspSem);
}
void tmqAssignDelayedCommitTask(void* param, void* tmrId) {
tmq_t* tmq = (tmq_t*)param;
int8_t* pTaskType = taosAllocateQitem(sizeof(int8_t), DEF_QITEM);
*pTaskType = TMQ_DELAYED_TASK__COMMIT;
taosWriteQitem(tmq->delayedTask, pTaskType);
tsem_post(&tmq->rspSem);
}
void tmqAssignDelayedReportTask(void* param, void* tmrId) {
tmq_t* tmq = (tmq_t*)param;
int8_t* pTaskType = taosAllocateQitem(sizeof(int8_t), DEF_QITEM);
*pTaskType = TMQ_DELAYED_TASK__REPORT;
taosWriteQitem(tmq->delayedTask, pTaskType);
tsem_post(&tmq->rspSem);
}
int32_t tmqHandleAllDelayedTask(tmq_t* tmq) {
STaosQall* qall = taosAllocateQall();
taosReadAllQitems(tmq->delayedTask, qall);
while (1) {
int8_t* pTaskType = NULL;
taosGetQitem(qall, (void**)&pTaskType);
if (pTaskType == NULL) break;
if (*pTaskType == TMQ_DELAYED_TASK__HB) {
tmqAskEp(tmq, true);
taosTmrReset(tmqAssignDelayedHbTask, 1000, tmq, tmqMgmt.timer, &tmq->hbTimer);
} else if (*pTaskType == TMQ_DELAYED_TASK__COMMIT) {
tmqCommitInner(tmq, NULL, 1, 1, tmq->commitCb, tmq->commitCbUserParam);
taosTmrReset(tmqAssignDelayedCommitTask, tmq->autoCommitInterval, tmq, tmqMgmt.timer, &tmq->commitTimer);
} else if (*pTaskType == TMQ_DELAYED_TASK__REPORT) {
} else {
ASSERT(0);
}
taosFreeQitem(pTaskType);
}
taosFreeQall(qall);
return 0;
}
void tmqClearUnhandleMsg(tmq_t* tmq) {
SMqRspWrapper* msg = NULL;
while (1) {
taosGetQitem(tmq->qall, (void**)&msg);
if (msg)
taosFreeQitem(msg);
else
break;
}
msg = NULL;
taosReadAllQitems(tmq->mqueue, tmq->qall);
while (1) {
taosGetQitem(tmq->qall, (void**)&msg);
if (msg)
taosFreeQitem(msg);
else
break;
}
}
int32_t tmqSubscribeCb(void* param, const SDataBuf* pMsg, int32_t code) {
SMqSubscribeCbParam* pParam = (SMqSubscribeCbParam*)param;
pParam->rspErr = code;
/*tmq_t* tmq = pParam->tmq;*/
tsem_post(&pParam->rspSem);
return 0;
}
tmq_resp_err_t tmq_subscription(tmq_t* tmq, tmq_list_t** topics) {
if (*topics == NULL) {
*topics = tmq_list_new();
}
for (int i = 0; i < taosArrayGetSize(tmq->clientTopics); i++) {
SMqClientTopic* topic = taosArrayGet(tmq->clientTopics, i);
tmq_list_append(*topics, strchr(topic->topicName, '.') + 1);
}
return TMQ_RESP_ERR__SUCCESS;
}
tmq_resp_err_t tmq_unsubscribe(tmq_t* tmq) {
tmq_list_t* lst = tmq_list_new();
tmq_resp_err_t rsp = tmq_subscribe(tmq, lst);
tmq_list_destroy(lst);
return rsp;
}
#if 0
tmq_t* tmq_consumer_new(void* conn, tmq_conf_t* conf, char* errstr, int32_t errstrLen) {
tmq_t* pTmq = taosMemoryCalloc(sizeof(tmq_t), 1);
if (pTmq == NULL) {
return NULL;
}
pTmq->pTscObj = (STscObj*)conn;
pTmq->status = 0;
pTmq->pollCnt = 0;
pTmq->epoch = 0;
pTmq->epStatus = 0;
pTmq->epSkipCnt = 0;
// set conf
strcpy(pTmq->clientId, conf->clientId);
strcpy(pTmq->groupId, conf->groupId);
pTmq->autoCommit = conf->autoCommit;
pTmq->commit_cb = conf->commit_cb;
pTmq->resetOffsetCfg = conf->resetOffset;
pTmq->consumerId = generateRequestId() & (((uint64_t)-1) >> 1);
pTmq->clientTopics = taosArrayInit(0, sizeof(SMqClientTopic));
if (pTmq->clientTopics == NULL) {
taosMemoryFree(pTmq);
return NULL;
}
pTmq->mqueue = taosOpenQueue();
pTmq->qall = taosAllocateQall();
tsem_init(&pTmq->rspSem, 0, 0);
return pTmq;
}
#endif
tmq_t* tmq_consumer_new(tmq_conf_t* conf, char* errstr, int32_t errstrLen) {
// init timer
int8_t inited = atomic_val_compare_exchange_8(&tmqMgmt.inited, 0, 1);
if (inited == 0) {
tmqMgmt.timer = taosTmrInit(1000, 100, 360000, "TMQ");
if (tmqMgmt.timer == NULL) {
atomic_store_8(&tmqMgmt.inited, 0);
terrno = TSDB_CODE_OUT_OF_MEMORY;
return NULL;
}
}
tmq_t* pTmq = taosMemoryCalloc(1, sizeof(tmq_t));
if (pTmq == NULL) {
return NULL;
}
const char* user = conf->user == NULL ? TSDB_DEFAULT_USER : conf->user;
const char* pass = conf->pass == NULL ? TSDB_DEFAULT_PASS : conf->pass;
ASSERT(user);
ASSERT(pass);
ASSERT(conf->groupId[0]);
pTmq->clientTopics = taosArrayInit(0, sizeof(SMqClientTopic));
pTmq->mqueue = taosOpenQueue();
pTmq->qall = taosAllocateQall();
pTmq->delayedTask = taosOpenQueue();
if (pTmq->clientTopics == NULL || pTmq->mqueue == NULL || pTmq->qall == NULL || pTmq->delayedTask == NULL) {
goto FAIL;
}
// init status
pTmq->status = TMQ_CONSUMER_STATUS__INIT;
pTmq->pollCnt = 0;
pTmq->epoch = 0;
/*pTmq->epStatus = 0;*/
/*pTmq->epSkipCnt = 0;*/
// set conf
strcpy(pTmq->clientId, conf->clientId);
strcpy(pTmq->groupId, conf->groupId);
pTmq->withTbName = conf->withTbName;
pTmq->autoCommit = conf->autoCommit;
pTmq->autoCommitInterval = conf->autoCommitInterval;
pTmq->commitCb = conf->commitCb;
pTmq->commitCbUserParam = conf->commitCbUserParam;
pTmq->resetOffsetCfg = conf->resetOffset;
// assign consumerId
pTmq->consumerId = tGenIdPI64();
// init semaphore
if (tsem_init(&pTmq->rspSem, 0, 0) != 0) {
goto FAIL;
}
// init connection
pTmq->pTscObj = taos_connect_internal(conf->ip, user, pass, NULL, NULL, conf->port, CONN_TYPE__TMQ);
if (pTmq->pTscObj == NULL) {
tsem_destroy(&pTmq->rspSem);
goto FAIL;
}
return pTmq;
FAIL:
if (pTmq->clientTopics) taosArrayDestroy(pTmq->clientTopics);
if (pTmq->mqueue) taosCloseQueue(pTmq->mqueue);
if (pTmq->delayedTask) taosCloseQueue(pTmq->delayedTask);
if (pTmq->qall) taosFreeQall(pTmq->qall);
taosMemoryFree(pTmq);
return NULL;
}
tmq_resp_err_t tmq_commit(tmq_t* tmq, const tmq_topic_vgroup_list_t* offsets, int32_t async) {
return tmqCommitInner(tmq, offsets, 0, async, tmq->commitCb, tmq->commitCbUserParam);
}
tmq_resp_err_t tmq_subscribe(tmq_t* tmq, const tmq_list_t* topic_list) {
const SArray* container = &topic_list->container;
int32_t sz = taosArrayGetSize(container);
void* buf = NULL;
SCMSubscribeReq req = {0};
int32_t code = -1;
req.consumerId = tmq->consumerId;
tstrncpy(req.cgroup, tmq->groupId, TSDB_CGROUP_LEN);
req.topicNames = taosArrayInit(sz, sizeof(void*));
if (req.topicNames == NULL) goto FAIL;
for (int32_t i = 0; i < sz; i++) {
char* topic = taosArrayGetP(container, i);
SName name = {0};
tNameSetDbName(&name, tmq->pTscObj->acctId, topic, strlen(topic));
char* topicFName = taosMemoryCalloc(1, TSDB_TOPIC_FNAME_LEN);
if (topicFName == NULL) {
goto FAIL;
}
tNameExtractFullName(&name, topicFName);
tscDebug("subscribe topic: %s", topicFName);
taosArrayPush(req.topicNames, &topicFName);
}
int32_t tlen = tSerializeSCMSubscribeReq(NULL, &req);
buf = taosMemoryMalloc(tlen);
if (buf == NULL) goto FAIL;
void* abuf = buf;
tSerializeSCMSubscribeReq(&abuf, &req);
SMsgSendInfo* sendInfo = taosMemoryCalloc(1, sizeof(SMsgSendInfo));
if (sendInfo == NULL) goto FAIL;
SMqSubscribeCbParam param = {
.rspErr = TMQ_RESP_ERR__SUCCESS,
.tmq = tmq,
};
if (tsem_init(&param.rspSem, 0, 0) != 0) goto FAIL;
sendInfo->msgInfo = (SDataBuf){
.pData = buf,
.len = tlen,
.handle = NULL,
};
sendInfo->requestId = generateRequestId();
sendInfo->requestObjRefId = 0;
sendInfo->param = &param;
sendInfo->fp = tmqSubscribeCb;
sendInfo->msgType = TDMT_MND_SUBSCRIBE;
SEpSet epSet = getEpSet_s(&tmq->pTscObj->pAppInfo->mgmtEp);
int64_t transporterId = 0;
asyncSendMsgToServer(tmq->pTscObj->pAppInfo->pTransporter, &epSet, &transporterId, sendInfo);
// avoid double free if msg is sent
buf = NULL;
tsem_wait(&param.rspSem);
tsem_destroy(&param.rspSem);
code = param.rspErr;
if (code != 0) goto FAIL;
while (TSDB_CODE_MND_CONSUMER_NOT_READY == tmqAskEp(tmq, false)) {
tscDebug("consumer not ready, retry");
taosMsleep(500);
}
// init hb timer
if (tmq->hbTimer == NULL) {
tmq->hbTimer = taosTmrStart(tmqAssignDelayedHbTask, 1000, tmq, tmqMgmt.timer);
}
// init auto commit timer
if (tmq->autoCommit && tmq->commitTimer == NULL) {
tmq->commitTimer = taosTmrStart(tmqAssignDelayedCommitTask, tmq->autoCommitInterval, tmq, tmqMgmt.timer);
}
code = 0;
FAIL:
if (req.topicNames != NULL) taosArrayDestroyP(req.topicNames, taosMemoryFree);
if (code != 0 && buf) {
taosMemoryFree(buf);
}
return code;
}
void tmq_conf_set_auto_commit_cb(tmq_conf_t* conf, tmq_commit_cb* cb, void* param) {
//
conf->commitCb = cb;
conf->commitCbUserParam = param;
}
#if 0
int32_t tmqGetSkipLogNum(tmq_message_t* tmq_message) {
if (tmq_message == NULL) return 0;
SMqPollRsp* pRsp = &tmq_message->msg;
return pRsp->skipLogNum;
}
#endif
int32_t tmqPollCb(void* param, const SDataBuf* pMsg, int32_t code) {
SMqPollCbParam* pParam = (SMqPollCbParam*)param;
SMqClientVg* pVg = pParam->pVg;
SMqClientTopic* pTopic = pParam->pTopic;
tmq_t* tmq = pParam->tmq;
int32_t vgId = pParam->vgId;
int32_t epoch = pParam->epoch;
taosMemoryFree(pParam);
if (code != 0) {
tscWarn("msg discard from vg %d, epoch %d, code:%x", vgId, epoch, code);
if (pMsg->pData) taosMemoryFree(pMsg->pData);
goto CREATE_MSG_FAIL;
}
int32_t msgEpoch = ((SMqRspHead*)pMsg->pData)->epoch;
int32_t tmqEpoch = atomic_load_32(&tmq->epoch);
if (msgEpoch < tmqEpoch) {
// do not write into queue since updating epoch reset
tscWarn("msg discard from vg %d since from earlier epoch, rsp epoch %d, current epoch %d", vgId, msgEpoch,
tmqEpoch);
tsem_post(&tmq->rspSem);
taosMemoryFree(pMsg->pData);
return 0;
}
if (msgEpoch != tmqEpoch) {
tscWarn("mismatch rsp from vg %d, epoch %d, current epoch %d", vgId, msgEpoch, tmqEpoch);
}
SMqPollRspWrapper* pRspWrapper = taosAllocateQitem(sizeof(SMqPollRspWrapper), DEF_QITEM);
if (pRspWrapper == NULL) {
taosMemoryFree(pMsg->pData);
tscWarn("msg discard from vg %d, epoch %d since out of memory", vgId, epoch);
goto CREATE_MSG_FAIL;
}
pRspWrapper->tmqRspType = TMQ_MSG_TYPE__POLL_RSP;
pRspWrapper->vgHandle = pVg;
pRspWrapper->topicHandle = pTopic;
memcpy(&pRspWrapper->msg, pMsg->pData, sizeof(SMqRspHead));
tDecodeSMqDataBlkRsp(POINTER_SHIFT(pMsg->pData, sizeof(SMqRspHead)), &pRspWrapper->msg);
taosMemoryFree(pMsg->pData);
tscDebug("consumer %ld recv poll: vg %d, req offset %ld, rsp offset %ld", tmq->consumerId, pVg->vgId,
pRspWrapper->msg.reqOffset, pRspWrapper->msg.rspOffset);
taosWriteQitem(tmq->mqueue, pRspWrapper);
tsem_post(&tmq->rspSem);
return 0;
CREATE_MSG_FAIL:
if (epoch == tmq->epoch) {
atomic_store_32(&pVg->vgStatus, TMQ_VG_STATUS__IDLE);
}
tsem_post(&tmq->rspSem);
return -1;
}
bool tmqUpdateEp2(tmq_t* tmq, int32_t epoch, SMqAskEpRsp* pRsp) {
bool set = false;
int32_t topicNumGet = taosArrayGetSize(pRsp->topics);
char vgKey[TSDB_TOPIC_FNAME_LEN + 22];
tscDebug("consumer %ld update ep epoch %d to epoch %d, topic num: %d", tmq->consumerId, tmq->epoch, epoch,
topicNumGet);
SArray* newTopics = taosArrayInit(topicNumGet, sizeof(SMqClientTopic));
if (newTopics == NULL) {
return false;
}
SHashObj* pHash = taosHashInit(64, MurmurHash3_32, false, HASH_NO_LOCK);
if (pHash == NULL) {
taosArrayDestroy(newTopics);
return false;
}
int32_t topicNumCur = taosArrayGetSize(tmq->clientTopics);
for (int32_t i = 0; i < topicNumCur; i++) {
// find old topic
SMqClientTopic* pTopicCur = taosArrayGet(tmq->clientTopics, i);
if (pTopicCur->vgs) {
int32_t vgNumCur = taosArrayGetSize(pTopicCur->vgs);
tscDebug("consumer %ld new vg num: %d", tmq->consumerId, vgNumCur);
if (vgNumCur == 0) break;
for (int32_t j = 0; j < vgNumCur; j++) {
SMqClientVg* pVgCur = taosArrayGet(pTopicCur->vgs, j);
sprintf(vgKey, "%s:%d", pTopicCur->topicName, pVgCur->vgId);
tscDebug("consumer %ld epoch %d vg %d build %s", tmq->consumerId, epoch, pVgCur->vgId, vgKey);
taosHashPut(pHash, vgKey, strlen(vgKey), &pVgCur->currentOffset, sizeof(int64_t));
}
break;
}
}
for (int32_t i = 0; i < topicNumGet; i++) {
SMqClientTopic topic = {0};
SMqSubTopicEp* pTopicEp = taosArrayGet(pRsp->topics, i);
topic.schema = pTopicEp->schema;
taosHashClear(pHash);
topic.topicName = strdup(pTopicEp->topic);
tstrncpy(topic.db, pTopicEp->db, TSDB_DB_FNAME_LEN);
tscDebug("consumer %ld update topic: %s", tmq->consumerId, topic.topicName);
int32_t vgNumGet = taosArrayGetSize(pTopicEp->vgs);
topic.vgs = taosArrayInit(vgNumGet, sizeof(SMqClientVg));
for (int32_t j = 0; j < vgNumGet; j++) {
SMqSubVgEp* pVgEp = taosArrayGet(pTopicEp->vgs, j);
sprintf(vgKey, "%s:%d", topic.topicName, pVgEp->vgId);
int64_t* pOffset = taosHashGet(pHash, vgKey, strlen(vgKey));
int64_t offset = tmq->resetOffsetCfg;
if (pOffset != NULL) {
offset = *pOffset;
}
tscDebug("consumer %ld(epoch %d) offset of vg %d updated to %ld", tmq->consumerId, epoch, pVgEp->vgId, offset);
SMqClientVg clientVg = {
.pollCnt = 0,
.currentOffset = offset,
.vgId = pVgEp->vgId,
.epSet = pVgEp->epSet,
.vgStatus = TMQ_VG_STATUS__IDLE,
.vgSkipCnt = 0,
};
taosArrayPush(topic.vgs, &clientVg);
set = true;
}
taosArrayPush(newTopics, &topic);
}
if (tmq->clientTopics) taosArrayDestroy(tmq->clientTopics);
taosHashCleanup(pHash);
tmq->clientTopics = newTopics;
if (taosArrayGetSize(tmq->clientTopics) == 0)
atomic_store_8(&tmq->status, TMQ_CONSUMER_STATUS__NO_TOPIC);
else
atomic_store_8(&tmq->status, TMQ_CONSUMER_STATUS__READY);
atomic_store_32(&tmq->epoch, epoch);
return set;
}
bool tmqUpdateEp(tmq_t* tmq, int32_t epoch, SMqAskEpRsp* pRsp) {
/*printf("call update ep %d\n", epoch);*/
bool set = false;
int32_t topicNumGet = taosArrayGetSize(pRsp->topics);
char vgKey[TSDB_TOPIC_FNAME_LEN + 22];
tscDebug("consumer %ld update ep epoch %d to epoch %d, topic num: %d", tmq->consumerId, tmq->epoch, epoch,
topicNumGet);
SArray* newTopics = taosArrayInit(topicNumGet, sizeof(SMqClientTopic));
if (newTopics == NULL) {
return false;
}
SHashObj* pHash = taosHashInit(64, MurmurHash3_32, false, HASH_NO_LOCK);
if (pHash == NULL) {
taosArrayDestroy(newTopics);
return false;
}
// find topic, build hash
for (int32_t i = 0; i < topicNumGet; i++) {
SMqClientTopic topic = {0};
SMqSubTopicEp* pTopicEp = taosArrayGet(pRsp->topics, i);
topic.schema = pTopicEp->schema;
taosHashClear(pHash);
topic.topicName = strdup(pTopicEp->topic);
tstrncpy(topic.db, pTopicEp->db, TSDB_DB_FNAME_LEN);
tscDebug("consumer %ld update topic: %s", tmq->consumerId, topic.topicName);
int32_t topicNumCur = taosArrayGetSize(tmq->clientTopics);
for (int32_t j = 0; j < topicNumCur; j++) {
// find old topic
SMqClientTopic* pTopicCur = taosArrayGet(tmq->clientTopics, j);
if (pTopicCur->vgs && strcmp(pTopicCur->topicName, pTopicEp->topic) == 0) {
int32_t vgNumCur = taosArrayGetSize(pTopicCur->vgs);
tscDebug("consumer %ld new vg num: %d", tmq->consumerId, vgNumCur);
if (vgNumCur == 0) break;
for (int32_t k = 0; k < vgNumCur; k++) {
SMqClientVg* pVgCur = taosArrayGet(pTopicCur->vgs, k);
sprintf(vgKey, "%s:%d", topic.topicName, pVgCur->vgId);
tscDebug("consumer %ld epoch %d vg %d build %s", tmq->consumerId, epoch, pVgCur->vgId, vgKey);
taosHashPut(pHash, vgKey, strlen(vgKey), &pVgCur->currentOffset, sizeof(int64_t));
}
break;
}
}
int32_t vgNumGet = taosArrayGetSize(pTopicEp->vgs);
topic.vgs = taosArrayInit(vgNumGet, sizeof(SMqClientVg));
for (int32_t j = 0; j < vgNumGet; j++) {
SMqSubVgEp* pVgEp = taosArrayGet(pTopicEp->vgs, j);
sprintf(vgKey, "%s:%d", topic.topicName, pVgEp->vgId);
int64_t* pOffset = taosHashGet(pHash, vgKey, strlen(vgKey));
int64_t offset = pVgEp->offset;
tscDebug("consumer %ld(epoch %d) original offset of vg %d is %ld", tmq->consumerId, epoch, pVgEp->vgId, offset);
if (pOffset != NULL) {
offset = *pOffset;
tscDebug("consumer %ld(epoch %d) receive offset of vg %d, full key is %s", tmq->consumerId, epoch, pVgEp->vgId,
vgKey);
}
tscDebug("consumer %ld(epoch %d) offset of vg %d updated to %ld", tmq->consumerId, epoch, pVgEp->vgId, offset);
SMqClientVg clientVg = {
.pollCnt = 0,
.currentOffset = offset,
.vgId = pVgEp->vgId,
.epSet = pVgEp->epSet,
.vgStatus = TMQ_VG_STATUS__IDLE,
.vgSkipCnt = 0,
};
taosArrayPush(topic.vgs, &clientVg);
set = true;
}
taosArrayPush(newTopics, &topic);
}
if (tmq->clientTopics) taosArrayDestroy(tmq->clientTopics);
taosHashCleanup(pHash);
tmq->clientTopics = newTopics;
if (taosArrayGetSize(tmq->clientTopics) == 0)
atomic_store_8(&tmq->status, TMQ_CONSUMER_STATUS__NO_TOPIC);
else
atomic_store_8(&tmq->status, TMQ_CONSUMER_STATUS__READY);
atomic_store_32(&tmq->epoch, epoch);
return set;
}
int32_t tmqAskEpCb(void* param, const SDataBuf* pMsg, int32_t code) {
SMqAskEpCbParam* pParam = (SMqAskEpCbParam*)param;
tmq_t* tmq = pParam->tmq;
int8_t async = pParam->async;
pParam->code = code;
if (code != 0) {
tscError("consumer %ld get topic endpoint error, not ready, wait:%d", tmq->consumerId, pParam->async);
goto END;
}
// tmq's epoch is monotonically increase,
// so it's safe to discard any old epoch msg.
// Epoch will only increase when received newer epoch ep msg
SMqRspHead* head = pMsg->pData;
int32_t epoch = atomic_load_32(&tmq->epoch);
tscDebug("consumer %ld recv ep, msg epoch %d, current epoch %d", tmq->consumerId, head->epoch, epoch);
if (head->epoch <= epoch) {
goto END;
}
if (!async) {
SMqAskEpRsp rsp;
tDecodeSMqAskEpRsp(POINTER_SHIFT(pMsg->pData, sizeof(SMqRspHead)), &rsp);
/*printf("rsp epoch %ld sz %ld\n", rsp.epoch, rsp.topics->size);*/
/*printf("tmq epoch %ld sz %ld\n", tmq->epoch, tmq->clientTopics->size);*/
tmqUpdateEp(tmq, head->epoch, &rsp);
tDeleteSMqAskEpRsp(&rsp);
} else {
SMqAskEpRspWrapper* pWrapper = taosAllocateQitem(sizeof(SMqAskEpRspWrapper), DEF_QITEM);
if (pWrapper == NULL) {
terrno = TSDB_CODE_OUT_OF_MEMORY;
code = -1;
goto END;
}
pWrapper->tmqRspType = TMQ_MSG_TYPE__EP_RSP;
pWrapper->epoch = head->epoch;
memcpy(&pWrapper->msg, pMsg->pData, sizeof(SMqRspHead));
tDecodeSMqAskEpRsp(POINTER_SHIFT(pMsg->pData, sizeof(SMqRspHead)), &pWrapper->msg);
taosWriteQitem(tmq->mqueue, pWrapper);
tsem_post(&tmq->rspSem);
}
END:
/*atomic_store_8(&tmq->epStatus, 0);*/
if (!async) {
tsem_post(&pParam->rspSem);
} else {
taosMemoryFree(pParam);
}
return code;
}
int32_t tmqAskEp(tmq_t* tmq, bool async) {
int32_t code = 0;
#if 0
int8_t epStatus = atomic_val_compare_exchange_8(&tmq->epStatus, 0, 1);
if (epStatus == 1) {
int32_t epSkipCnt = atomic_add_fetch_32(&tmq->epSkipCnt, 1);
tscTrace("consumer %ld skip ask ep cnt %d", tmq->consumerId, epSkipCnt);
if (epSkipCnt < 5000) return 0;
}
atomic_store_32(&tmq->epSkipCnt, 0);
#endif
int32_t tlen = sizeof(SMqAskEpReq);
SMqAskEpReq* req = taosMemoryCalloc(1, tlen);
if (req == NULL) {
tscError("failed to malloc get subscribe ep buf");
/*atomic_store_8(&tmq->epStatus, 0);*/
return -1;
}
req->consumerId = htobe64(tmq->consumerId);
req->epoch = htonl(tmq->epoch);
strcpy(req->cgroup, tmq->groupId);
SMqAskEpCbParam* pParam = taosMemoryCalloc(1, sizeof(SMqAskEpCbParam));
if (pParam == NULL) {
tscError("failed to malloc subscribe param");
taosMemoryFree(req);
/*atomic_store_8(&tmq->epStatus, 0);*/
return -1;
}
pParam->tmq = tmq;
pParam->async = async;
tsem_init(&pParam->rspSem, 0, 0);
SMsgSendInfo* sendInfo = taosMemoryCalloc(1, sizeof(SMsgSendInfo));
if (sendInfo == NULL) {
tsem_destroy(&pParam->rspSem);
taosMemoryFree(pParam);
taosMemoryFree(req);
/*atomic_store_8(&tmq->epStatus, 0);*/
return -1;
}
sendInfo->msgInfo = (SDataBuf){
.pData = req,
.len = tlen,
.handle = NULL,
};
sendInfo->requestId = generateRequestId();
sendInfo->requestObjRefId = 0;
sendInfo->param = pParam;
sendInfo->fp = tmqAskEpCb;
sendInfo->msgType = TDMT_MND_MQ_ASK_EP;
SEpSet epSet = getEpSet_s(&tmq->pTscObj->pAppInfo->mgmtEp);
tscDebug("consumer %ld ask ep", tmq->consumerId);
int64_t transporterId = 0;
asyncSendMsgToServer(tmq->pTscObj->pAppInfo->pTransporter, &epSet, &transporterId, sendInfo);
if (!async) {
tsem_wait(&pParam->rspSem);
code = pParam->code;
taosMemoryFree(pParam);
}
return code;
}
tmq_resp_err_t tmq_seek(tmq_t* tmq, const tmq_topic_vgroup_t* offset) {
const SMqOffset* pOffset = &offset->offset;
if (strcmp(pOffset->cgroup, tmq->groupId) != 0) {
return TMQ_RESP_ERR__FAIL;
}
int32_t sz = taosArrayGetSize(tmq->clientTopics);
for (int32_t i = 0; i < sz; i++) {
SMqClientTopic* clientTopic = taosArrayGet(tmq->clientTopics, i);
if (strcmp(clientTopic->topicName, pOffset->topicName) == 0) {
int32_t vgSz = taosArrayGetSize(clientTopic->vgs);
for (int32_t j = 0; j < vgSz; j++) {
SMqClientVg* pVg = taosArrayGet(clientTopic->vgs, j);
if (pVg->vgId == pOffset->vgId) {
pVg->currentOffset = pOffset->offset;
tmqClearUnhandleMsg(tmq);
return TMQ_RESP_ERR__SUCCESS;
}
}
}
}
return TMQ_RESP_ERR__FAIL;
}
SMqPollReq* tmqBuildConsumeReqImpl(tmq_t* tmq, int64_t timeout, SMqClientTopic* pTopic, SMqClientVg* pVg) {
int64_t reqOffset;
if (pVg->currentOffset >= 0) {
reqOffset = pVg->currentOffset;
} else {
if (tmq->resetOffsetCfg == TMQ_CONF__RESET_OFFSET__NONE) {
tscError("unable to poll since no committed offset but reset offset is set to none");
return NULL;
}
reqOffset = tmq->resetOffsetCfg;
}
SMqPollReq* pReq = taosMemoryCalloc(1, sizeof(SMqPollReq));
if (pReq == NULL) {
return NULL;
}
/*strcpy(pReq->topic, pTopic->topicName);*/
/*strcpy(pReq->cgroup, tmq->groupId);*/
int32_t tlen = strlen(tmq->groupId);
memcpy(pReq->subKey, tmq->groupId, tlen);
pReq->subKey[tlen] = TMQ_SEPARATOR;
strcpy(pReq->subKey + tlen + 1, pTopic->topicName);
pReq->withTbName = tmq->withTbName;
pReq->timeout = timeout;
pReq->consumerId = tmq->consumerId;
pReq->epoch = tmq->epoch;
pReq->currentOffset = reqOffset;
pReq->reqId = generateRequestId();
pReq->head.vgId = htonl(pVg->vgId);
pReq->head.contLen = htonl(sizeof(SMqPollReq));
return pReq;
}
SMqRspObj* tmqBuildRspFromWrapper(SMqPollRspWrapper* pWrapper) {
SMqRspObj* pRspObj = taosMemoryCalloc(1, sizeof(SMqRspObj));
pRspObj->resType = RES_TYPE__TMQ;
tstrncpy(pRspObj->topic, pWrapper->topicHandle->topicName, TSDB_TOPIC_FNAME_LEN);
tstrncpy(pRspObj->db, pWrapper->topicHandle->db, TSDB_DB_FNAME_LEN);
pRspObj->vgId = pWrapper->vgHandle->vgId;
pRspObj->resIter = -1;
memcpy(&pRspObj->rsp, &pWrapper->msg, sizeof(SMqDataBlkRsp));
pRspObj->resInfo.totalRows = 0;
pRspObj->resInfo.precision = TSDB_TIME_PRECISION_MILLI;
if (!pWrapper->msg.withSchema) {
setResSchemaInfo(&pRspObj->resInfo, pWrapper->topicHandle->schema.pSchema, pWrapper->topicHandle->schema.nCols);
}
return pRspObj;
}
int32_t tmqPollImpl(tmq_t* tmq, int64_t timeout) {
/*printf("call poll\n");*/
for (int i = 0; i < taosArrayGetSize(tmq->clientTopics); i++) {
SMqClientTopic* pTopic = taosArrayGet(tmq->clientTopics, i);
for (int j = 0; j < taosArrayGetSize(pTopic->vgs); j++) {
SMqClientVg* pVg = taosArrayGet(pTopic->vgs, j);
int32_t vgStatus = atomic_val_compare_exchange_32(&pVg->vgStatus, TMQ_VG_STATUS__IDLE, TMQ_VG_STATUS__WAIT);
if (vgStatus != TMQ_VG_STATUS__IDLE) {
int32_t vgSkipCnt = atomic_add_fetch_32(&pVg->vgSkipCnt, 1);
tscTrace("consumer %ld epoch %d skip vg %d skip cnt %d", tmq->consumerId, tmq->epoch, pVg->vgId, vgSkipCnt);
continue;
/*if (vgSkipCnt < 10000) continue;*/
#if 0
if (skipCnt < 30000) {
continue;
} else {
tscDebug("consumer %ld skip vg %d skip too much reset", tmq->consumerId, pVg->vgId);
}
#endif
}
atomic_store_32(&pVg->vgSkipCnt, 0);
SMqPollReq* pReq = tmqBuildConsumeReqImpl(tmq, timeout, pTopic, pVg);
if (pReq == NULL) {
atomic_store_32(&pVg->vgStatus, TMQ_VG_STATUS__IDLE);
tsem_post(&tmq->rspSem);
return -1;
}
SMqPollCbParam* pParam = taosMemoryMalloc(sizeof(SMqPollCbParam));
if (pParam == NULL) {
taosMemoryFree(pReq);
atomic_store_32(&pVg->vgStatus, TMQ_VG_STATUS__IDLE);
tsem_post(&tmq->rspSem);
return -1;
}
pParam->tmq = tmq;
pParam->pVg = pVg;
pParam->pTopic = pTopic;
pParam->vgId = pVg->vgId;
pParam->epoch = tmq->epoch;
SMsgSendInfo* sendInfo = taosMemoryCalloc(1, sizeof(SMsgSendInfo));
if (sendInfo == NULL) {
taosMemoryFree(pReq);
taosMemoryFree(pParam);
atomic_store_32(&pVg->vgStatus, TMQ_VG_STATUS__IDLE);
tsem_post(&tmq->rspSem);
return -1;
}
sendInfo->msgInfo = (SDataBuf){
.pData = pReq,
.len = sizeof(SMqPollReq),
.handle = NULL,
};
sendInfo->requestId = pReq->reqId;
sendInfo->requestObjRefId = 0;
sendInfo->param = pParam;
sendInfo->fp = tmqPollCb;
sendInfo->msgType = TDMT_VND_CONSUME;
int64_t transporterId = 0;
/*printf("send poll\n");*/
tscDebug("consumer %ld send poll to %s : vg %d, epoch %d, req offset %ld, reqId %lu", tmq->consumerId,
pTopic->topicName, pVg->vgId, tmq->epoch, pVg->currentOffset, pReq->reqId);
/*printf("send vg %d %ld\n", pVg->vgId, pVg->currentOffset);*/
asyncSendMsgToServer(tmq->pTscObj->pAppInfo->pTransporter, &pVg->epSet, &transporterId, sendInfo);
pVg->pollCnt++;
tmq->pollCnt++;
}
}
return 0;
}
int32_t tmqHandleNoPollRsp(tmq_t* tmq, SMqRspWrapper* rspWrapper, bool* pReset) {
if (rspWrapper->tmqRspType == TMQ_MSG_TYPE__EP_RSP) {
/*printf("ep %d %d\n", rspMsg->head.epoch, tmq->epoch);*/
if (rspWrapper->epoch > atomic_load_32(&tmq->epoch)) {
SMqAskEpRspWrapper* pEpRspWrapper = (SMqAskEpRspWrapper*)rspWrapper;
SMqAskEpRsp* rspMsg = &pEpRspWrapper->msg;
tmqUpdateEp(tmq, rspWrapper->epoch, rspMsg);
/*tmqClearUnhandleMsg(tmq);*/
*pReset = true;
} else {
*pReset = false;
}
} else {
return -1;
}
return 0;
}
SMqRspObj* tmqHandleAllRsp(tmq_t* tmq, int64_t timeout, bool pollIfReset) {
while (1) {
SMqRspWrapper* rspWrapper = NULL;
taosGetQitem(tmq->qall, (void**)&rspWrapper);
if (rspWrapper == NULL) {
taosReadAllQitems(tmq->mqueue, tmq->qall);
taosGetQitem(tmq->qall, (void**)&rspWrapper);
if (rspWrapper == NULL) return NULL;
}
if (rspWrapper->tmqRspType == TMQ_MSG_TYPE__POLL_RSP) {
SMqPollRspWrapper* pollRspWrapper = (SMqPollRspWrapper*)rspWrapper;
/*atomic_sub_fetch_32(&tmq->readyRequest, 1);*/
int32_t consumerEpoch = atomic_load_32(&tmq->epoch);
if (pollRspWrapper->msg.head.epoch == consumerEpoch) {
SMqClientVg* pVg = pollRspWrapper->vgHandle;
/*printf("vg %d offset %ld up to %ld\n", pVg->vgId, pVg->currentOffset, rspMsg->msg.rspOffset);*/
pVg->currentOffset = pollRspWrapper->msg.rspOffset;
atomic_store_32(&pVg->vgStatus, TMQ_VG_STATUS__IDLE);
if (pollRspWrapper->msg.blockNum == 0) {
taosFreeQitem(pollRspWrapper);
rspWrapper = NULL;
continue;
}
// build rsp
SMqRspObj* pRsp = tmqBuildRspFromWrapper(pollRspWrapper);
taosFreeQitem(pollRspWrapper);
return pRsp;
} else {
tscDebug("msg discard since epoch mismatch: msg epoch %d, consumer epoch %d\n", pollRspWrapper->msg.head.epoch,
consumerEpoch);
taosFreeQitem(pollRspWrapper);
}
} else {
/*printf("handle ep rsp %d\n", rspMsg->head.mqMsgType);*/
bool reset = false;
tmqHandleNoPollRsp(tmq, rspWrapper, &reset);
taosFreeQitem(rspWrapper);
if (pollIfReset && reset) {
tscDebug("consumer %ld reset and repoll", tmq->consumerId);
tmqPollImpl(tmq, timeout);
}
}
}
}
TAOS_RES* tmq_consumer_poll(tmq_t* tmq, int64_t timeout) {
SMqRspObj* rspObj;
int64_t startTime = taosGetTimestampMs();
#if 0
tmqHandleAllDelayedTask(tmq);
tmqPollImpl(tmq, timeout);
rspObj = tmqHandleAllRsp(tmq, timeout, false);
if (rspObj) {
return (TAOS_RES*)rspObj;
}
#endif
// in no topic status also need process delayed task
if (atomic_load_8(&tmq->status) == TMQ_CONSUMER_STATUS__INIT) {
return NULL;
}
while (1) {
tmqHandleAllDelayedTask(tmq);
if (tmqPollImpl(tmq, timeout) < 0) return NULL;
rspObj = tmqHandleAllRsp(tmq, timeout, false);
if (rspObj) {
return (TAOS_RES*)rspObj;
}
if (timeout != -1) {
int64_t endTime = taosGetTimestampMs();
int64_t leftTime = endTime - startTime;
if (leftTime > timeout) {
tscDebug("consumer %ld (epoch %d) timeout, no rsp", tmq->consumerId, tmq->epoch);
return NULL;
}
tsem_timewait(&tmq->rspSem, leftTime * 1000);
} else {
// use tsem_timewait instead of tsem_wait to avoid unexpected stuck
tsem_timewait(&tmq->rspSem, 500 * 1000);
}
}
}
tmq_resp_err_t tmq_consumer_close(tmq_t* tmq) {
if (tmq->status == TMQ_CONSUMER_STATUS__READY) {
tmq_resp_err_t rsp = tmq_commit_sync(tmq, NULL);
if (rsp != TMQ_RESP_ERR__SUCCESS) {
return rsp;
}
tmq_list_t* lst = tmq_list_new();
rsp = tmq_subscribe(tmq, lst);
tmq_list_destroy(lst);
if (rsp != TMQ_RESP_ERR__SUCCESS) {
return rsp;
}
}
// TODO: free resources
return TMQ_RESP_ERR__SUCCESS;
}
const char* tmq_err2str(tmq_resp_err_t err) {
if (err == TMQ_RESP_ERR__SUCCESS) {
return "success";
} else if (err == TMQ_RESP_ERR__FAIL) {
return "fail";
} else {
return tstrerror(err);
}
}
const char* tmq_get_topic_name(TAOS_RES* res) {
if (TD_RES_TMQ(res)) {
SMqRspObj* pRspObj = (SMqRspObj*)res;
return strchr(pRspObj->topic, '.') + 1;
} else {
return NULL;
}
}
const char* tmq_get_db_name(TAOS_RES* res) {
if (TD_RES_TMQ(res)) {
SMqRspObj* pRspObj = (SMqRspObj*)res;
return strchr(pRspObj->db, '.') + 1;
} else {
return NULL;
}
}
int32_t tmq_get_vgroup_id(TAOS_RES* res) {
if (TD_RES_TMQ(res)) {
SMqRspObj* pRspObj = (SMqRspObj*)res;
return pRspObj->vgId;
} else {
return -1;
}
}
const char* tmq_get_table_name(TAOS_RES* res) {
if (TD_RES_TMQ(res)) {
SMqRspObj* pRspObj = (SMqRspObj*)res;
if (!pRspObj->rsp.withTbName || pRspObj->rsp.blockTbName == NULL || pRspObj->resIter < 0 ||
pRspObj->resIter >= pRspObj->rsp.blockNum) {
return NULL;
}
return (const char*)taosArrayGetP(pRspObj->rsp.blockTbName, pRspObj->resIter);
}
return NULL;
}
void tmq_commit_async(tmq_t* tmq, const tmq_topic_vgroup_list_t* offsets, tmq_commit_cb* cb, void* param) {
tmqCommitInner(tmq, offsets, 0, 1, cb, param);
}
tmq_resp_err_t tmq_commit_sync(tmq_t* tmq, const tmq_topic_vgroup_list_t* offsets) {
return tmqCommitInner(tmq, offsets, 0, 0, NULL, NULL);
}
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