#ifndef __BUFFER_H__
#define __BUFFER_H__

#include <zlib.h>
#include <Exceptions.h>
#include <Handle.h>

#ifndef realloc_threshold
#define realloc_threshold 256
#endif

class Buffer : public Handle {
  public:
      Buffer(bool seekable = false);
      Buffer(const Buffer &);
      virtual ~Buffer();
    virtual ssize_t write(const void *buf, size_t count) throw(GeneralException);
    virtual ssize_t read(void *buf, size_t count) throw (GeneralException);
    virtual bool CanRead() const;
    virtual bool CanWrite() const;
    virtual String GetName() const;
    virtual Buffer operator=(const Buffer &);
    virtual bool CanWatch() const;
    virtual ssize_t GetSize() const;
    virtual bool CanSeek() const;
    virtual off_t seek(off_t, int = SEEK_SET) throw (GeneralException);
    virtual off_t tell() const;
    Byte operator[](size_t) const;
    Byte & operator[](size_t);
    off_t wseek(off_t, int = SEEK_SET) throw (GeneralException);
    off_t wtell() const;

  private:
    Byte * buffer, zero;
    size_t realsiz, bufsiz, ptr, wptr;
    bool seekable;
};

#endif