File indexing completed on 2025-01-05 04:37:27

 /*
     SPDX-FileCopyrightText: 2005 Joris Guisson <joris.guisson@gmail.com>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 #ifndef BTUDPTRACKER_H
 #define BTUDPTRACKER_H
 
 #include "tracker.h"
 #include <QByteArray>
 #include <QTimer>
 #include <QUrl>
 #include <net/address.h>
 
 namespace net
 {
 class AddressResolver;
 }
 
 namespace bt
 {
 class UDPTrackerSocket;
 
 /**
  * @author Joris Guisson
  * @brief Communicates with an UDP tracker
  *
  * This class is able to communicate with an UDP tracker.
  * This is an implementation of the protocol described in
  * http://xbtt.sourceforge.net/udp_tracker_protocol.html
  */
 class UDPTracker : public Tracker
 {
     Q_OBJECT
 public:
     UDPTracker(const QUrl &url, TrackerDataSource *tds, const PeerID &id, int tier);
     ~UDPTracker() override;
 
     void start() override;
     void stop(WaitJob *wjob = nullptr) override;
     void completed() override;
     Uint32 failureCount() const override
     {
         return failures;
     }
     void scrape() override;
 
 private Q_SLOTS:
     void onConnTimeout();
     void connectReceived(Int32 tid, Int64 connection_id);
     void announceReceived(Int32 tid, const Uint8 *buf, Uint32 size);
     void scrapeReceived(Int32 tid, const Uint8 *buf, Uint32 size);
     void onError(Int32 tid, const QString &error_string);
     void onResolverResults(net::AddressResolver *ar);
     void manualUpdate() override;
 
 private:
     void sendConnect();
     void sendAnnounce();
     void sendScrape();
     bool doRequest();
 
     enum Event {
         NONE = 0,
         COMPLETED = 1,
         STARTED = 2,
         STOPPED = 3,
     };
 
     enum Todo {
         NOTHING = 0,
         SCRAPE_REQUEST = 1,
         ANNOUNCE_REQUEST = 2,
     };
 
 private:
     net::Address address;
     Int64 connection_id;
     Int32 transaction_id;
     Int32 scrape_transaction_id;
 
     Uint32 data_read;
     int failures;
     bool resolved;
     Uint32 todo;
     Event event;
     QTimer conn_timer;
 
     static UDPTrackerSocket *socket;
     static Uint32 num_instances;
 };
 
 }
 
 #endif