homework-jianmu/source/dnode/snode/src/snode.c

123 lines
3.4 KiB
C

/*
* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
*
* This program is free software: you can use, redistribute, and/or modify
* it under the terms of the GNU Affero General Public License, version 3
* or later ("AGPL"), as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "executor.h"
#include "sndInt.h"
#include "tuuid.h"
SSnode *sndOpen(const char *path, const SSnodeOpt *pOption) {
SSnode *pSnode = calloc(1, sizeof(SSnode));
if (pSnode == NULL) {
return NULL;
}
pSnode->msgCb = pOption->msgCb;
pSnode->pMeta = sndMetaNew();
if (pSnode->pMeta == NULL) {
free(pSnode);
return NULL;
}
return pSnode;
}
void sndClose(SSnode *pSnode) {
sndMetaDelete(pSnode->pMeta);
free(pSnode);
}
int32_t sndGetLoad(SSnode *pSnode, SSnodeLoad *pLoad) { return 0; }
SStreamMeta *sndMetaNew() {
SStreamMeta *pMeta = calloc(1, sizeof(SStreamMeta));
if (pMeta == NULL) {
return NULL;
}
pMeta->pHash = taosHashInit(64, taosGetDefaultHashFunction(TSDB_DATA_TYPE_INT), true, HASH_NO_LOCK);
if (pMeta->pHash == NULL) {
free(pMeta);
return NULL;
}
return pMeta;
}
void sndMetaDelete(SStreamMeta *pMeta) {
taosHashCleanup(pMeta->pHash);
free(pMeta);
}
int32_t sndMetaDeployTask(SStreamMeta *pMeta, SStreamTask *pTask) {
for (int i = 0; i < pTask->numOfRunners; i++) {
pTask->runner[i].executor = qCreateStreamExecTaskInfo(pTask->qmsg, NULL);
}
return taosHashPut(pMeta->pHash, &pTask->taskId, sizeof(int32_t), pTask, sizeof(void *));
}
SStreamTask *sndMetaGetTask(SStreamMeta *pMeta, int32_t taskId) {
return taosHashGet(pMeta->pHash, &taskId, sizeof(int32_t));
}
int32_t sndMetaRemoveTask(SStreamMeta *pMeta, int32_t taskId) {
SStreamTask *pTask = taosHashGet(pMeta->pHash, &taskId, sizeof(int32_t));
if (pTask == NULL) {
return -1;
}
free(pTask->qmsg);
// TODO:free executor
free(pTask);
return taosHashRemove(pMeta->pHash, &taskId, sizeof(int32_t));
}
static int32_t sndProcessTaskExecReq(SSnode *pSnode, SRpcMsg *pMsg) {
SStreamExecMsgHead *pHead = pMsg->pCont;
int32_t taskId = pHead->streamTaskId;
SStreamTask *pTask = sndMetaGetTask(pSnode->pMeta, taskId);
if (pTask == NULL) {
return -1;
}
return 0;
}
void sndProcessUMsg(SSnode *pSnode, SRpcMsg *pMsg) {
// stream deploy
// stream stop/resume
// operator exec
if (pMsg->msgType == TDMT_SND_TASK_DEPLOY) {
void *msg = POINTER_SHIFT(pMsg->pCont, sizeof(SMsgHead));
SStreamTask *pTask = malloc(sizeof(SStreamTask));
if (pTask == NULL) {
ASSERT(0);
return;
}
SCoder decoder;
tCoderInit(&decoder, TD_LITTLE_ENDIAN, msg, pMsg->contLen - sizeof(SMsgHead), TD_DECODER);
tDecodeSStreamTask(&decoder, pTask);
tCoderClear(&decoder);
sndMetaDeployTask(pSnode->pMeta, pTask);
} else if (pMsg->msgType == TDMT_SND_TASK_EXEC) {
sndProcessTaskExecReq(pSnode, pMsg);
} else {
ASSERT(0);
}
}
void sndProcessSMsg(SSnode *pSnode, SRpcMsg *pMsg) {
// operator exec
if (pMsg->msgType == TDMT_SND_TASK_EXEC) {
sndProcessTaskExecReq(pSnode, pMsg);
} else {
ASSERT(0);
}
}