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diff --git a/libk3b/tools/k3bactivepipe.h b/libk3b/tools/k3bactivepipe.h
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+/* 
+ *
+ * $Id: sourceheader 511311 2006-02-19 14:51:05Z trueg $
+ * Copyright (C) 2006 Sebastian Trueg <trueg@k3b.org>
+ *
+ * This file is part of the K3b project.
+ * Copyright (C) 1998-2007 Sebastian Trueg <trueg@k3b.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * See the file "COPYING" for the exact licensing terms.
+ */
+
+#ifndef _K3B_ACTIVE_PIPE_H_
+#define _K3B_ACTIVE_PIPE_H_
+
+#include <qcstring.h>
+
+#include <k3b_export.h>
+
+
+class QIODevice;
+
+
+/**
+ * The active pipe pumps data from a source to a sink using an
+ * additional thread.
+ */
+class LIBK3B_EXPORT K3bActivePipe
+{
+ public:
+  K3bActivePipe();
+  virtual ~K3bActivePipe();
+
+  /**
+   * Opens the pipe and thus starts the 
+   * pumping.
+   *
+   * \param closeWhenDone If true the pipes will be closed
+   *        once all data has been read.
+   */
+  virtual bool open( bool closeWhenDone = false );
+
+  /**
+   * Opens the pipe syncroneously and blocks until all data has been
+   * pumped through.
+   * The pipe is closed afterwards.
+   */
+  bool pumpSync();
+
+  /**
+   * Close the pipe
+   */
+  virtual void close();
+
+  /**
+   * Set the file descriptor to read from. If this is -1 (the default) then
+   * data has to be piped into the in() file descriptor.
+   *
+   * \param fd The file descriptor to read from.
+   * \param close If true the reading file descriptor will be closed on a call to close()
+   */
+  void readFromFd( int fd, bool close = false );
+
+  /**
+   * Set the file descriptor to write to. If this is -1 (the default) then
+   * data has to read from the out() file descriptor.
+   *
+   * \param fd The file descriptor to write to.
+   * \param close If true the reading file descriptor will be closed on a call to close()
+   */
+  void writeToFd( int fd, bool close = false );
+
+  /**
+   * Read from a QIODevice instead of a file descriptor.
+   * The device will be opened IO_ReadOnly and closed
+   * afterwards.
+   */
+  void readFromIODevice( QIODevice* dev );
+
+  /**
+   * Write to a QIODevice instead of a file descriptor.
+   * The device will be opened IO_WriteOnly and closed
+   * afterwards.
+   */
+  void writeToIODevice( QIODevice* dev );
+
+  /**
+   * The file descriptor to write into
+   * Only valid if no source has been set
+   */
+  int in() const;
+
+  /**
+   * The file descriptor to read from
+   * Only valid if no sink has been set
+   */
+  int out() const;
+
+  /**
+   * The number of bytes that have been read.
+   */
+  Q_UINT64 bytesRead() const;
+
+  /**
+   * The number of bytes that have been written.
+   */
+  Q_UINT64 bytesWritten() const;
+
+ protected:
+  /**
+   * Reads the data from the source.
+   * The default implementation reads from the file desc
+   * set via readFromFd or from in()
+   */
+  virtual int read( char* data, int max );
+
+  /**
+   * Write the data to the sink.
+   * The default implementation writes to the file desc
+   * set via writeToFd or out()
+   *
+   * Can be reimplememented to further process the data.
+   */
+  virtual int write( char* data, int max );
+
+ private:
+  class Private;
+  Private* d;
+};
+
+#endif