BlockInStream.h

/*
 *  BlockInStream class interface
 *
 *  This file is part of OTAWA
 *  Copyright (c) 2005-09, 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_BLOCK_IN_STREAM_H
#define ELM_IO_BLOCK_IN_STREAM_H
 
#include <elm/string/String.h>
#include <elm/string/CString.h>
#include <elm/io/InStream.h>
 
namespace elm { namespace io {
 
// BlockInStream class
class BlockInStream: public InStream {
    const char *_block;
    int _size, off;
public:
 
    BlockInStream(const void *block, int size);
    BlockInStream(const char *str);
    BlockInStream(const CString& str);
    BlockInStream(const String& str); 
    inline const void *block() const { return _block; }
    inline int size() const { return _size; }
    inline int mark() const { return off; }
    inline void move(int mark) { off = mark; }
    inline void moveForward(int size) { off += size; }
    inline void moveBackward(int size) { off -= size; }
    inline void reset(void) { off = 0; }
 
    // InStream overload
    int read(void *buffer, int size) override;
    int read() override;
};
 
} } // elm::io
 
#endif  // ELM_IO_BLOCK_IN_STREAM_H