src/views/versioncontrol/updateitemstatesthread.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2009 by Peter Penz <peter.penz19@gmail.com>             *
   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 "updateitemstatesthread.h"
  21
  22
  23 UpdateItemStatesThread::UpdateItemStatesThread(KVersionControlPlugin* plugin,
  24                                                const QMap<QString, QVector<VersionControlObserver::ItemState> >& itemStates) :
  25     QThread(),
  26     m_globalPluginMutex(nullptr),
  27     m_plugin(plugin),
  28     m_itemStates(itemStates)
  29 {
  30     // Several threads may share one instance of a plugin. A global
  31     // mutex is required to serialize the retrieval of version control
  32     // states inside run().
  33     static QMutex globalMutex;
  34     m_globalPluginMutex = &globalMutex;
  35 }
  36
  37 UpdateItemStatesThread::~UpdateItemStatesThread()
  38 {
  39 }
  40
  41 void UpdateItemStatesThread::run()
  42 {
  43     Q_ASSERT(!m_itemStates.isEmpty());
  44     Q_ASSERT(m_plugin);
  45
  46     QMutexLocker pluginLocker(m_globalPluginMutex);
  47     QMap<QString, QVector<VersionControlObserver::ItemState> >::iterator it = m_itemStates.begin();
  48     for (; it != m_itemStates.end(); ++it) {
  49         if (m_plugin->beginRetrieval(it.key())) {
  50             QVector<VersionControlObserver::ItemState>& items = it.value();
  51             const int count = items.count();
  52             for (int i = 0; i < count; ++i) {
  53                 const KFileItem& item = items.at(i).first;
  54                 const KVersionControlPlugin::ItemVersion version = m_plugin->itemVersion(item);
  55                 items[i].second = version;
  56             }
  57         }
  58
  59         m_plugin->endRetrieval();
  60     }
  61 }
  62
  63 QMap<QString, QVector<VersionControlObserver::ItemState> > UpdateItemStatesThread::itemStates() const
  64 {
  65     return m_itemStates;
  66 }
  67