git.maemo.org Git - qtrapids/blob - src/server/AlertWaiterThread.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2010 by Ixonos Plc   *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; version 2 of the License.               *
   7  *                                                                         *
   8  *   This program is distributed in the hope that it will be useful,       *
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  10  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  11  *   GNU General Public License for more details.                          *
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  18
  19 #include "AlertWaiterThread.hpp"
  20 #include <QDebug>
  21
  22
  23 namespace qtrapids
  24 {
  25
  26 // Constants:
  27 // Timeout for waiting alerts
  28 const libtorrent::time_duration ALERT_WAIT_TIMEOUT
  29 = libtorrent::time_duration(libtorrent::seconds(15));
  30
  31
  32 AlertWaiterThread::AlertWaiterThread(session_t *session, QObject* parent) :
  33                 QThread(parent),
  34                 btSession_(session),
  35                 running_(false),
  36                 alertMutex_()
  37 {
  38 }
  39
  40
  41 AlertWaiterThread::~AlertWaiterThread()
  42 {
  43 }
  44
  45
  46 void AlertWaiterThread::allAlerts(bool enable)
  47 {
  48         // If all enabled, set all alert cateogries:
  49         if (enable) {
  50                 btSession_->set_alert_mask(libtorrent::alert::all_categories);
  51         } else {
  52                 // Otherwise set to default, which is only error notifications.
  53                 btSession_->set_alert_mask(libtorrent::alert::error_notification);
  54         }
  55 }
  56
  57
  58 void AlertWaiterThread::run()
  59 {
  60         alert_t const *alertTemp = NULL;
  61         running_ = true;
  62         while (running_) {
  63                 // wait_for_alert() call blocks. Returns libtorrent alert.
  64                 // Returns NULL, if no alerts in timeout period.
  65                 alertTemp = btSession_->wait_for_alert(ALERT_WAIT_TIMEOUT);
  66                 emit alert();
  67                 // 2000 us = 2ms. Gives main thread time to handle alert signal.
  68                 usleep(2000);
  69         }
  70 }
  71
  72
  73 void AlertWaiterThread::stop()
  74 {
  75         alertMutex_.lock();
  76         running_ = false;
  77         alertMutex_.unlock();
  78 }
  79
  80
  81 } // namespace qtrapids