text: /****************************************************************************
  **
  ** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
  ** Contact: http://www.qt-project.org/legal
  **
  ** This file is part of the QtNetwork module of the Qt Toolkit.
  **
  ** $QT_BEGIN_LICENSE:LGPL$
  ** Commercial License Usage
  ** Licensees holding valid commercial Qt licenses may use this file in
  ** accordance with the commercial license agreement provided with the
  ** Software or, alternatively, in accordance with the terms contained in
  ** a written agreement between you and Digia.  For licensing terms and
  ** conditions see http://qt.digia.com/licensing.  For further information
  ** use the contact form at http://qt.digia.com/contact-us.
  **
  ** GNU Lesser General Public License Usage
  ** Alternatively, this file may be used under the terms of the GNU Lesser
  ** General Public License version 2.1 as published by the Free Software
  ** Foundation and appearing in the file LICENSE.LGPL included in the
  ** packaging of this file.  Please review the following information to
  ** ensure the GNU Lesser General Public License version 2.1 requirements
  ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
  **
  ** In addition, as a special exception, Digia gives you certain additional
  ** rights.  These rights are described in the Digia Qt LGPL Exception
  ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
  **
  ** GNU General Public License Usage
  ** Alternatively, this file may be used under the terms of the GNU
  ** General Public License version 3.0 as published by the Free Software
  ** Foundation and appearing in the file LICENSE.GPL included in the
  ** packaging of this file.  Please review the following information to
  ** ensure the GNU General Public License version 3.0 requirements will be
  ** met: http://www.gnu.org/copyleft/gpl.html.
  **
  **
  ** $QT_END_LICENSE$
  **
  ****************************************************************************/
  
  #include "qlocalserver.h"
  #include "qlocalserver_p.h"
  #include "qlocalsocket.h"
  #include "qlocalsocket_p.h"
  
  #include <qhostaddress.h>
  #include <qsettings.h>
  #include <qdebug.h>
  
  QT_BEGIN_NAMESPACE
  
  void QLocalServerPrivate::init()
  {
      Q_Q(QLocalServer);
      q->connect(&tcpServer, SIGNAL(newConnection()), SLOT(_q_onNewConnection()));
  }
  
  bool QLocalServerPrivate::listen(const QString &requestedServerName)
  {
      if (!tcpServer.listen(QHostAddress::LocalHost))
          return false;
  
      const QLatin1String prefix("QLocalServer/");
      if (requestedServerName.startsWith(prefix))
          fullServerName = requestedServerName;
      else
          fullServerName = prefix + requestedServerName;
  
      QSettings settings(QLatin1String("Trolltech"), QLatin1String("Qt"));
      if (settings.contains(fullServerName)) {
          qWarning("QLocalServer::listen: server name is already in use.");
          tcpServer.close();
          return false;
      }
  
      settings.setValue(fullServerName, tcpServer.serverPort());
      return true;
  }
  
  void QLocalServerPrivate::closeServer()
  {
      QSettings settings(QLatin1String("Trolltech"), QLatin1String("Qt"));
      if (fullServerName == QLatin1String("QLocalServer"))
          settings.setValue(fullServerName, QVariant());
      else
          settings.remove(fullServerName);
      tcpServer.close();
  }
  
  void QLocalServerPrivate::waitForNewConnection(int msec, bool *timedOut)
  {
      if (pendingConnections.isEmpty())
          tcpServer.waitForNewConnection(msec, timedOut);
      else if (timedOut)
          *timedOut = false;
  }
  
  void QLocalServerPrivate::_q_onNewConnection()
  {
      Q_Q(QLocalServer);
      QTcpSocket* tcpSocket = tcpServer.nextPendingConnection();
      if (!tcpSocket) {
          qWarning("QLocalServer: no pending connection");
          return;
      }
  
      tcpSocket->setParent(q);
      const quintptr socketDescriptor = tcpSocket->socketDescriptor();
      q->incomingConnection(socketDescriptor);
  }
  
  bool QLocalServerPrivate::removeServer(const QString &name)
  {
      const QLatin1String prefix("QLocalServer/");
      QString serverName;
      if (name.startsWith(prefix))
          serverName = name;
      else
          serverName = prefix + name;
  
      QSettings settings(QLatin1String("Trolltech"), QLatin1String("Qt"));
      if (settings.contains(serverName))
          settings.remove(serverName);
  
      return true;
  }
  
  QT_END_NAMESPACE
  