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 #include <kversioncontrolplugin2.h>
  23 #include <QVector>
  24
  25 #include <QMutexLocker>
  26
  27 UpdateItemStatesThread::UpdateItemStatesThread(KVersionControlPlugin* plugin,
  28                                                const QMap<QString, QVector<VersionControlObserver::ItemState> >& itemStates) :
  29     QThread(),
  30     m_globalPluginMutex(0),
  31     m_plugin(plugin),
  32     m_itemStates(itemStates)
  33 {
  34     // Several threads may share one instance of a plugin. A global
  35     // mutex is required to serialize the retrieval of version control
  36     // states inside run().
  37     static QMutex globalMutex;
  38     m_globalPluginMutex = &globalMutex;
  39 }
  40
  41 UpdateItemStatesThread::~UpdateItemStatesThread()
  42 {
  43 }
  44
  45 void UpdateItemStatesThread::run()
  46 {
  47     Q_ASSERT(!m_itemStates.isEmpty());
  48     Q_ASSERT(m_plugin);
  49
  50     QMutexLocker pluginLocker(m_globalPluginMutex);
  51     QMap<QString, QVector<VersionControlObserver::ItemState> >::iterator it = m_itemStates.begin();
  52     for (; it != m_itemStates.end(); ++it) {
  53         if (m_plugin->beginRetrieval(it.key())) {
  54             QVector<VersionControlObserver::ItemState>& items = it.value();
  55             const int count = items.count();
  56
  57             KVersionControlPlugin2* pluginV2 = qobject_cast<KVersionControlPlugin2*>(m_plugin);
  58             if (pluginV2) {
  59                 for (int i = 0; i < count; ++i) {
  60                     const KFileItem& item = items.at(i).first;
  61                     const KVersionControlPlugin2::ItemVersion version = pluginV2->itemVersion(item);
  62                     items[i].second = version;
  63                 }
  64             } else {
  65                 for (int i = 0; i < count; ++i) {
  66                     const KFileItem& item = items.at(i).first;
  67                     const KVersionControlPlugin::VersionState state = m_plugin->versionState(item);
  68                     items[i].second = static_cast<KVersionControlPlugin2::ItemVersion>(state);
  69                 }
  70             }
  71         }
  72
  73         m_plugin->endRetrieval();
  74     }
  75 }
  76
  77 QMap<QString, QVector<VersionControlObserver::ItemState> > UpdateItemStatesThread::itemStates() const
  78 {
  79     return m_itemStates;
  80 }
  81