BufferedOutStream.h

/*
 *  $Id$
 *  BufferedOutStream class interface
 *
 *  This file is part of OTAWA
 *  Copyright (c) 2009, IRIT UPS.
 *
 *  OTAWA 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.
 *
 *  OTAWA 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with OTAWA; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
#ifndef ELM_IO_BUFFERED_OUT_STREAM_H_
#define ELM_IO_BUFFERED_OUT_STREAM_H_

#include <elm/io/OutStream.h>

namespace elm { namespace io {

// BufferedOutStream class
class BufferedOutStream: public OutStream {
public:
    static const int default_size = 4096;

    BufferedOutStream(OutStream& output, size_t size = default_size);
    virtual ~BufferedOutStream(void);

    // OutStream override
    virtual int write(const char *buffer, int size);
    virtual int flush(void);
    virtual CString lastErrorMessage(void);

private:
    OutStream& out;
    char *buf;
    size_t top, buf_size;
};

} } // elm::io

#endif /* ELM_IO_BUFFERED_OUT_STREAM_H_ */