mirror of
https://github.com/mongodb/mongo.git
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99 lines
2.9 KiB
C++
99 lines
2.9 KiB
C++
/* connpool.cpp
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*/
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/**
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* Copyright (C) 2008 10gen Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License, version 3,
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* 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,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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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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// _ todo: reconnect?
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#include "stdafx.h"
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#include "connpool.h"
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#include "../db/commands.h"
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namespace mongo {
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DBConnectionPool pool;
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DBClientBase* DBConnectionPool::get(const string& host) {
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boostlock L(poolMutex);
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PoolForHost *&p = pools[host];
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if ( p == 0 )
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p = new PoolForHost();
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if ( p->pool.empty() ) {
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string errmsg;
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DBClientBase *c;
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if( host.find(',') == string::npos ) {
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DBClientConnection *cc = new DBClientConnection(true);
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if ( !cc->connect(host.c_str(), errmsg) ) {
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delete cc;
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uassert( (string)"dbconnectionpool: connect failed" + host , false);
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return 0;
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}
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c = cc;
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}
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else {
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DBClientPaired *p = new DBClientPaired();
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if( !p->connect(host) ) {
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delete p;
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uassert( (string)"dbconnectionpool: connect failed [2] " + host , false);
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return 0;
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}
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c = p;
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}
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return c;
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}
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DBClientBase *c = p->pool.front();
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p->pool.pop();
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return c;
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}
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void DBConnectionPool::flush(){
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boostlock L(poolMutex);
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for ( map<string,PoolForHost*>::iterator i = pools.begin(); i != pools.end(); i++ ){
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PoolForHost* p = i->second;
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vector<DBClientBase*> all;
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while ( ! p->pool.empty() ){
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DBClientBase * c = p->pool.front();
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p->pool.pop();
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all.push_back( c );
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bool res;
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c->isMaster( res );
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}
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for ( vector<DBClientBase*>::iterator i=all.begin(); i != all.end(); i++ ){
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p->pool.push( *i );
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}
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}
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}
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class PoolFlushCmd : public Command {
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public:
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PoolFlushCmd() : Command( "connpoolsync" ){}
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virtual bool run(const char*, mongo::BSONObj&, std::string&, mongo::BSONObjBuilder& result, bool){
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pool.flush();
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result << "ok" << 1;
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return true;
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}
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virtual bool slaveOk(){
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return true;
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}
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} poolFlushCmd;
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} // namespace mongo
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