PushbackInputStream.h

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/*
 * Copyright (c) 2004 X-Way Rights BV
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef _CLASS_BEE_IO_PUSHBACKINPUTSTREAM_H
#define _CLASS_BEE_IO_PUSHBACKINPUTSTREAM_H

#ifdef __cplusplus

#include "beecrypt/c++/io/FilterInputStream.h"
using beecrypt::io::FilterInputStream;

namespace beecrypt {
    namespace io {
        class BEECRYPTCXXAPI PushbackInputStream : public FilterInputStream
        {
        private:
            bool _closed;

        protected:
            bytearray buf;
            jint pos;

        public:
            PushbackInputStream(InputStream& in, jint size = 1);
            virtual ~PushbackInputStream();

            virtual jint available() throw (IOException);
            virtual void close() throw (IOException);
            virtual bool markSupported() throw ();
            virtual jint read() throw (IOException);
            virtual jint read(byte* data, jint offset, jint length) throw (IOException);
            virtual jint skip(jint n) throw (IOException);

            void unread(byte) throw (IOException);
            void unread(const byte* data, jint offset, jint length) throw (IOException);
            void unread(const bytearray& b) throw (IOException);
        };
    }
}

#endif

#endif