Christophe Dumez
15 years ago
4 changed files with 169 additions and 10 deletions
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/*
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* Bittorrent Client using Qt4 and libtorrent. |
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* Copyright (C) 2006 Christophe Dumez |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version 2 |
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* of the License, or (at your option) any later version. |
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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 General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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* |
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* In addition, as a special exception, the copyright holders give permission to |
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* link this program with the OpenSSL project's "OpenSSL" library (or with |
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* modified versions of it that use the same license as the "OpenSSL" library), |
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* and distribute the linked executables. You must obey the GNU General Public |
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* License in all respects for all of the code used other than "OpenSSL". If you |
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* modify file(s), you may extend this exception to your version of the file(s), |
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* but you are not obligated to do so. If you do not wish to do so, delete this |
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* exception statement from your version. |
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* |
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* Contact : chris@qbittorrent.org |
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*/ |
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#ifndef REVERSERESOLUTION_H |
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#define REVERSERESOLUTION_H |
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#include <QQueue> |
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#include <QThread> |
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#include <QWaitCondition> |
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#include <QMutex> |
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#include <QList> |
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#include <boost/asio/ip/tcp.hpp> |
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#include "misc.h" |
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#define MAX_THREADS 20 |
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class ReverseResolutionST: public QThread { |
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Q_OBJECT |
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private: |
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boost::asio::ip::tcp::endpoint ip; |
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boost::asio::ip::tcp::resolver resolver; |
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public: |
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ReverseResolutionST(boost::asio::io_service &ios, QObject *parent=0): QThread(parent), resolver(ios) { |
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} |
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~ReverseResolutionST() { |
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wait(); |
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} |
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void setIP(boost::asio::ip::tcp::endpoint &_ip) { |
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ip = _ip; |
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} |
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signals: |
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void ip_resolved(QString ip, QString hostname); |
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protected: |
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void run() { |
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boost::asio::ip::tcp::resolver::iterator it = resolver.resolve(ip); |
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qDebug("IP was resolved"); |
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boost::asio::ip::tcp::endpoint endpoint = *it; |
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emit ip_resolved(misc::toQString(endpoint.address().to_string()), misc::toQString((*it).host_name())); |
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} |
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}; |
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class ReverseResolution: public QThread { |
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Q_OBJECT |
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private: |
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QQueue<boost::asio::ip::tcp::endpoint> ips; |
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QMutex mut; |
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QWaitCondition cond; |
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bool stopped; |
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boost::asio::io_service ios; |
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QList<ReverseResolutionST*> subThreads; |
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public: |
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ReverseResolution(QObject* parent): QThread(parent), stopped(false) { |
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} |
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~ReverseResolution() { |
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stopped = true; |
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cond.wakeOne(); |
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qDeleteAll(subThreads); |
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wait(); |
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} |
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void resolve(boost::asio::ip::tcp::endpoint ip) { |
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mut.lock(); |
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ips.enqueue(ip); |
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if(subThreads.size() < MAX_THREADS) |
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cond.wakeOne(); |
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mut.unlock(); |
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} |
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signals: |
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void ip_resolved(QString ip, QString hostname); |
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protected slots: |
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void forwardSignal(QString ip, QString hostname) { |
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emit ip_resolved(ip, hostname); |
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mut.lock(); |
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subThreads.removeOne(static_cast<ReverseResolutionST*>(sender())); |
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if(!ips.empty()) |
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cond.wakeOne(); |
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mut.unlock(); |
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sender()->deleteLater(); |
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} |
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protected: |
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void run() { |
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do { |
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mut.lock(); |
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cond.wait(&mut); |
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if(stopped) return; |
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boost::asio::ip::tcp::endpoint ip = ips.dequeue(); |
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ReverseResolutionST *st = new ReverseResolutionST(ios); |
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subThreads.append(st); |
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mut.unlock(); |
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connect(st, SIGNAL(ip_resolved(QString,QString)), this, SLOT(forwardSignal(QString,QString))); |
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st->setIP(ip); |
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st->start(); |
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}while(!stopped); |
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} |
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}; |
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#endif // REVERSERESOLUTION_H
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