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Copy pathQueryDbThread.cpp
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158 lines (127 loc) · 3.94 KB
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/**
* Tencent is pleased to support the open source community by making Tars available.
*
* Copyright (C) 2016THL A29 Limited, a Tencent company. All rights reserved.
*
* Licensed under the BSD 3-Clause License (the "License"); you may not use this file except
* in compliance with the License. You may obtain a copy of the License at
*
* https://opensource.org/licenses/BSD-3-Clause
*
* Unless required by applicable law or agreed to in writing, software distributed
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
*/
#include "QueryDbThread.h"
#include "QueryServer.h"
#include "DbProxy.h"
/////////////////////////////////////////////////////////////////////////
QueryDbThread::QueryDbThread()
: _terminate(false)
{
TLOGDEBUG("QueryDbThread init ok" << endl);
}
QueryDbThread::~QueryDbThread()
{
terminate();
TLOGDEBUG("QueryDbThread terminate." << endl);
}
void QueryDbThread::start(int iThreadNum)
{
for(int i = 0; i < iThreadNum; ++i)
{
HandleThreadRunner *r = new HandleThreadRunner(this);
r->start();
_runners.push_back(r);
}
}
void QueryDbThread::terminate()
{
_terminate = true;
for (uint32_t i = 0; i < _runners.size(); ++i)
{
if (_runners[i]->isAlive())
{
_runners[i]->terminate();
_queue.notifyT();
}
}
for (uint32_t i = 0; i < _runners.size(); ++i)
{
if(_runners[i]->isAlive())
{
_runners[i]->getThreadControl().join();
}
}
_queue.clear();
for (uint32_t i = 0; i < _runners.size(); ++i)
{
if(_runners[i])
{
delete _runners[i];
_runners[i] = NULL;
}
}
}
bool QueryDbThread::pop(QueryItem* &pItem)
{
return _queue.pop_front(pItem, 2000);
}
void QueryDbThread::put(QueryItem* pItem)
{
if(!_terminate && pItem)
{
_queue.push_back(pItem);
}
}
/////////////////////////////////////////////////////////////////////////
HandleThreadRunner::HandleThreadRunner(QueryDbThread* proc)
: _terminate(false)
, _proc(proc)
{
}
void HandleThreadRunner::terminate()
{
_terminate = true;
}
void HandleThreadRunner::run()
{
string sRes("");
DbProxy _dbproxy;
int64_t tStart = 0;
int64_t tEnd = 0;
while (!_terminate)
{
QueryItem* pQueryItem = NULL;
if(!_terminate && _proc->pop(pQueryItem))
{
try
{
tStart = TNOWMS;
_dbproxy.queryData(pQueryItem->mQuery, sRes, pQueryItem->bFlag);
tEnd = TNOWMS;
sRes += "endline\n";
pQueryItem->current->sendResponse(sRes.c_str(), sRes.length());
FDLOG("inout") << "HandleThreadRunner::run sUid:" << pQueryItem->sUid << "queryData timecost(ms):" << (tEnd - tStart) << endl;
}
catch(exception& ex)
{
TLOGERROR("HandleThreadRunner::run exception:" << ex.what() << endl);
string sResult = "Ret:-1\n" + string(ex.what()) + "\nendline\n";
pQueryItem->current->sendResponse(sResult.c_str(), sResult.length());
FDLOG("inout") << "HandleThreadRunner::run sUid:" << pQueryItem->sUid << "exception:" << ex.what() << endl;
}
catch(...)
{
TLOGERROR("HandleThreadRunner::run exception." << endl);
string sResult = "Ret:-1\nunknown exception\nendline\n";
pQueryItem->current->sendResponse(sResult.c_str(), sResult.length());
FDLOG("inout") << "HandleThreadRunner::run sUid:" << pQueryItem->sUid << "unknown exception." << endl;
}
sRes = "";
delete pQueryItem;
pQueryItem = NULL;
}
}
}