homework-jianmu/source/libs/stream/src/streamExec.c

128 lines
4.2 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 "tstream.h"
static int32_t streamTaskExecImpl(SStreamTask* pTask, void* data, SArray* pRes) {
void* exec = pTask->exec.executor;
// set input
SStreamQueueItem* pItem = (SStreamQueueItem*)data;
if (pItem->type == STREAM_INPUT__TRIGGER) {
SStreamTrigger* pTrigger = (SStreamTrigger*)data;
qSetMultiStreamInput(exec, pTrigger->pBlock, 1, STREAM_DATA_TYPE_SSDATA_BLOCK, false);
} else if (pItem->type == STREAM_INPUT__DATA_SUBMIT) {
SStreamDataSubmit* pSubmit = (SStreamDataSubmit*)data;
ASSERT(pTask->inputType == STREAM_INPUT__DATA_SUBMIT);
qSetStreamInput(exec, pSubmit->data, STREAM_DATA_TYPE_SUBMIT_BLOCK, false);
} else if (pItem->type == STREAM_INPUT__DATA_BLOCK) {
SStreamDataBlock* pBlock = (SStreamDataBlock*)data;
ASSERT(pTask->inputType == STREAM_INPUT__DATA_BLOCK);
SArray* blocks = pBlock->blocks;
qSetMultiStreamInput(exec, blocks->pData, blocks->size, STREAM_DATA_TYPE_SSDATA_BLOCK, false);
}
// exec
while (1) {
SSDataBlock* output = NULL;
uint64_t ts = 0;
if (qExecTask(exec, &output, &ts) < 0) {
ASSERT(false);
}
if (output == NULL) break;
// TODO: do we need free memory?
SSDataBlock* outputCopy = createOneDataBlock(output, true);
outputCopy->info.childId = pTask->childId;
taosArrayPush(pRes, outputCopy);
}
return 0;
}
static SArray* streamExecForQall(SStreamTask* pTask, SArray* pRes) {
while (1) {
void* data = streamQueueNextItem(pTask->inputQueue);
if (data == NULL) break;
streamTaskExecImpl(pTask, data, pRes);
if (taosArrayGetSize(pRes) != 0) {
SStreamDataBlock* qRes = taosAllocateQitem(sizeof(SStreamDataBlock), DEF_QITEM);
if (qRes == NULL) {
streamQueueProcessFail(pTask->inputQueue);
taosArrayDestroy(pRes);
return NULL;
}
qRes->type = STREAM_INPUT__DATA_BLOCK;
qRes->blocks = pRes;
/*qRes->sourceVg = pTask->nodeId;*/
if (streamTaskOutput(pTask, qRes) < 0) {
streamQueueProcessFail(pTask->inputQueue);
taosArrayDestroy(pRes);
taosFreeQitem(qRes);
return NULL;
}
if (pTask->inputType == STREAM_INPUT__DATA_SUBMIT) {
streamDataSubmitRefDec((SStreamDataSubmit*)data);
taosFreeQitem(data);
} else {
taosArrayDestroyEx(((SStreamDataBlock*)data)->blocks, (FDelete)tDeleteSSDataBlock);
taosFreeQitem(data);
}
streamQueueProcessSuccess(pTask->inputQueue);
return taosArrayInit(0, sizeof(SSDataBlock));
}
}
return pRes;
}
// TODO: handle version
int32_t streamExec(SStreamTask* pTask, SMsgCb* pMsgCb) {
SArray* pRes = taosArrayInit(0, sizeof(SSDataBlock));
if (pRes == NULL) return -1;
while (1) {
int8_t execStatus = atomic_val_compare_exchange_8(&pTask->status, TASK_STATUS__IDLE, TASK_STATUS__EXECUTING);
if (execStatus == TASK_STATUS__IDLE) {
// first run
pRes = streamExecForQall(pTask, pRes);
if (pRes == NULL) goto FAIL;
// set status closing
atomic_store_8(&pTask->status, TASK_STATUS__CLOSING);
// second run, make sure inputQ and qall are cleared
pRes = streamExecForQall(pTask, pRes);
if (pRes == NULL) goto FAIL;
break;
} else if (execStatus == TASK_STATUS__CLOSING) {
continue;
} else if (execStatus == TASK_STATUS__EXECUTING) {
break;
} else {
ASSERT(0);
}
}
if (pRes) taosArrayDestroy(pRes);
atomic_store_8(&pTask->status, TASK_STATUS__IDLE);
return 0;
FAIL:
if (pRes) taosArrayDestroy(pRes);
atomic_store_8(&pTask->status, TASK_STATUS__IDLE);
return -1;
}