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kdbusconnectionpool.cpp
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1 /*
2  * This file is part of the Nepomuk KDE project.
3  * Copyright (C) 2010 Sebastian Trueg <trueg@kde.org>
4  * Copyright (C) 2010 David Faure <faure@kde.org>
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Library General Public
8  * License as published by the Free Software Foundation; either
9  * version 2 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Library General Public License for more details.
15  *
16  * You should have received a copy of the GNU Library General Public License
17  * along with this library; see the file COPYING.LIB. If not, write to
18  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19  * Boston, MA 02110-1301, USA.
20  */
21 
22 #include "kdbusconnectionpool.h"
23 #include <QThreadStorage>
24 
25 namespace {
26 QAtomicInt s_connectionCounter;
27 
28 class KDBusConnectionPoolPrivate
29 {
30 public:
31  KDBusConnectionPoolPrivate()
32  : m_connection( QDBusConnection::connectToBus(
33  QDBusConnection::SessionBus,
34  QString::fromLatin1("KDBusConnection%1").arg(newNumber()) ) )
35  {
36  }
37 
38  ~KDBusConnectionPoolPrivate()
39  {
40  QDBusConnection::disconnectFromBus( m_connection.name() );
41  }
42 
43  QDBusConnection connection() const
44  {
45  return m_connection;
46  }
47 
48 private:
49  static int newNumber()
50  {
51  return s_connectionCounter.fetchAndAddAcquire(1);
52  }
53 
54  QDBusConnection m_connection;
55 };
56 } // namespace
57 
58 QThreadStorage<KDBusConnectionPoolPrivate *> s_perThreadConnection;
59 
60 QDBusConnection KDBusConnectionPool::threadConnection()
61 {
62  if (!s_perThreadConnection.hasLocalData()) {
63  s_perThreadConnection.setLocalData(new KDBusConnectionPoolPrivate);
64  }
65 
66  return s_perThreadConnection.localData()->connection();
67 }
68 
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