StreamPipe.h

/*
 *  io::StreamPipe class interface
 *
 *  This file is part of OTAWA
 *  Copyright (c) 2013, 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_STREAMPIPE_H_
#define ELM_IO_STREAMPIPE_H_
 
#include <elm/string.h>
 
namespace elm { namespace io {
 
class InStream;
class OutStream;
 
class StreamPipe {
public:
    StreamPipe(InStream& in, OutStream& out, int buffer_size = 1 << 16);
    ~StreamPipe(void);
    int proceed(void);
    string lastErrorMessage(void) const;
private:
    InStream& _in;
    OutStream& _out;
    enum {
        OK = 0,
        IN_ERROR,
        OUT_ERROR
    } state;
    int bufs;
    char *buf;
};
 
} } // elm::io
 
#endif /* ELM_IO_STREAMPIPE_H_ */