src/views/versioncontrol/pendingthreadsmaintainer.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2010 by Peter Penz <peter.penz@gmx.at>                  *
   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; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  18  ***************************************************************************/
  19
  20 #include "pendingthreadsmaintainer.h"
  21
  22 #include <kglobal.h>
  23 #include <QThread>
  24 #include <QTimer>
  25
  26 struct PendingThreadsMaintainerSingleton
  27 {
  28     PendingThreadsMaintainer instance;
  29 };
  30 K_GLOBAL_STATIC(PendingThreadsMaintainerSingleton, s_pendingThreadsMaintainer)
  31
  32
  33 PendingThreadsMaintainer& PendingThreadsMaintainer::instance()
  34 {
  35     return s_pendingThreadsMaintainer->instance;
  36 }
  37
  38 PendingThreadsMaintainer::~PendingThreadsMaintainer()
  39 {
  40 }
  41
  42 void PendingThreadsMaintainer::append(QThread* thread)
  43 {
  44     Q_ASSERT(thread != 0);
  45     m_threads.append(thread);
  46     m_timer->start();
  47 }
  48
  49 PendingThreadsMaintainer::PendingThreadsMaintainer() :
  50     QObject(),
  51     m_threads(),
  52     m_timer(0)
  53 {
  54     m_timer = new QTimer(this);
  55     m_timer->setSingleShot(true);
  56     m_timer->setInterval(5000); // 5 seconds
  57     connect(m_timer, SIGNAL(timeout()), this, SLOT(cleanup()));
  58 }
  59
  60 void PendingThreadsMaintainer::cleanup()
  61 {
  62     QList<QThread*>::iterator it = m_threads.begin();
  63     while (it != m_threads.end()) {
  64         if ((*it)->isFinished()) {
  65             (*it)->deleteLater();
  66             it = m_threads.erase(it);
  67         } else {
  68             ++it;
  69         }
  70     }
  71
  72     if (!m_threads.isEmpty()) {
  73         m_timer->start();
  74     }
  75 }
  76
  77 #include "pendingthreadsmaintainer.moc"