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https://github.com/mongodb/mongo.git
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131 lines
3.8 KiB
C++
131 lines
3.8 KiB
C++
// message_server_port.cpp
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/* Copyright 2009 10gen Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "pch.h"
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#ifndef USE_ASIO
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#include "message.h"
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#include "message_server.h"
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#include "../db/cmdline.h"
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#include "../db/stats/counters.h"
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namespace mongo {
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namespace pms {
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MessageHandler * handler;
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void threadRun( MessagingPort * inPort) {
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assert( inPort );
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setThreadName( "conn" );
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TicketHolderReleaser connTicketReleaser( &connTicketHolder );
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auto_ptr<MessagingPort> p( inPort );
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string otherSide;
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Message m;
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try {
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otherSide = p->farEnd.toString();
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while ( 1 ) {
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m.reset();
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p->clearCounters();
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if ( ! p->recv(m) ) {
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if( !cmdLine.quiet )
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log() << "end connection " << otherSide << endl;
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p->shutdown();
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break;
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}
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handler->process( m , p.get() );
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networkCounter.hit( p->getBytesIn() , p->getBytesOut() );
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}
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}
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catch ( const SocketException& ) {
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log() << "unclean socket shutdown from: " << otherSide << endl;
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}
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catch ( const std::exception& e ) {
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problem() << "uncaught exception (" << e.what() << ")(" << demangleName( typeid(e) ) <<") in PortMessageServer::threadRun, closing connection" << endl;
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}
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catch ( ... ) {
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problem() << "uncaught exception in PortMessageServer::threadRun, closing connection" << endl;
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}
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handler->disconnected( p.get() );
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}
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}
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class PortMessageServer : public MessageServer , public Listener {
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public:
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PortMessageServer( const MessageServer::Options& opts, MessageHandler * handler ) :
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Listener( opts.ipList, opts.port ) {
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uassert( 10275 , "multiple PortMessageServer not supported" , ! pms::handler );
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pms::handler = handler;
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}
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virtual void accepted(MessagingPort * p) {
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if ( ! connTicketHolder.tryAcquire() ) {
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log() << "connection refused because too many open connections: " << connTicketHolder.used() << endl;
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// TODO: would be nice if we notified them...
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p->shutdown();
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delete p;
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sleepmillis(2); // otherwise we'll hard loop
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return;
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}
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try {
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boost::thread thr( boost::bind( &pms::threadRun , p ) );
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}
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catch ( boost::thread_resource_error& ) {
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log() << "can't create new thread, closing connection" << endl;
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p->shutdown();
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delete p;
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sleepmillis(2);
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}
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}
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virtual void setAsTimeTracker() {
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Listener::setAsTimeTracker();
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}
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void run() {
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initAndListen();
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}
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};
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MessageServer * createServer( const MessageServer::Options& opts , MessageHandler * handler ) {
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return new PortMessageServer( opts , handler );
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}
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}
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#endif
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