ostream_buffer_splitter.h

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/*
 * Copyright (c) 2011-2015:  G-CSC, Goethe University Frankfurt
 * Author: Sebastian Reiter
 * 
 * This file is part of UG4.
 * 
 * UG4 is free software: you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License version 3 (as published by the
 * Free Software Foundation) with the following additional attribution
 * requirements (according to LGPL/GPL v3 §7):
 * 
 * (1) The following notice must be displayed in the Appropriate Legal Notices
 * of covered and combined works: "Based on UG4 (www.ug4.org/license)".
 * 
 * (2) The following notice must be displayed at a prominent place in the
 * terminal output of covered works: "Based on UG4 (www.ug4.org/license)".
 * 
 * (3) The following bibliography is recommended for citation and must be
 * preserved in all covered files:
 * "Reiter, S., Vogel, A., Heppner, I., Rupp, M., and Wittum, G. A massively
 *   parallel geometric multigrid solver on hierarchically distributed grids.
 *   Computing and visualization in science 16, 4 (2013), 151-164"
 * "Vogel, A., Reiter, S., Rupp, M., Nägel, A., and Wittum, G. UG4 -- a novel
 *   flexible software system for simulating pde based models on high performance
 *   computers. Computing and visualization in science 16, 4 (2013), 165-179"
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Lesser General Public License for more details.
 */
 
#ifndef __H__UG_OSTREAM_BUFFER_SPLITTER__
#define __H__UG_OSTREAM_BUFFER_SPLITTER__
 
#include <iostream>
#include <fstream>
#include "empty_stream.h"
 
namespace ug
{
 
 
 
class OStreamBufferSplitter : public std::streambuf
{
  public:
    OStreamBufferSplitter();
 
    OStreamBufferSplitter(std::streambuf* buf1, std::streambuf* buf2);
 
    ~OStreamBufferSplitter();
 
  //  flushes the local buffer into the associated buffers
    void flush();
 
    void set_buffers(std::streambuf* buf1, std::streambuf* buf2);
 
    virtual int_type overflow(int_type c = traits_type::eof());
 
  private:
    static const int    BUF_SIZE = 128;
    std::streambuf* m_buf1;
    std::streambuf* m_buf2;
    char_type   m_buf[BUF_SIZE];
};
 
// end group ugbase_common_io
 
}// end of namespace
 
#endif