ibrcommon/ibrcommon/data/iobuffer.h

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/*
 * iobuffer.h
 *
 *  Created on: 14.02.2011
 *      Author: morgenro
 */

#ifndef IOBUFFER_H_
#define IOBUFFER_H_

#include "ibrcommon/Exceptions.h"
#include <streambuf>
#include "ibrcommon/thread/Conditional.h"

namespace ibrcommon
{
        class iobuffer : public std::basic_streambuf<char, std::char_traits<char> >
        {
        public:
                iobuffer(const size_t buffer = 2048);
                virtual ~iobuffer();

                void finalize();

        protected:
                virtual int sync();
                virtual std::char_traits<char>::int_type overflow(std::char_traits<char>::int_type = std::char_traits<char>::eof());
                virtual std::char_traits<char>::int_type underflow();

        private:
                ibrcommon::Conditional _data_cond;

                bool _eof;

                size_t _data_size;

                // length of the data buffer
                size_t _buf_size;

                // input buffer
                char *_input_buf;

                // interim buffer
                char *_interim_buf;

                // output buffer
                char *_output_buf;
        };
}

#endif /* IOBUFFER_H_ */