MemoryBlock.h++

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/* ---------------------------------------------------------------------------
   commonc++ - A C++ Common Class Library
   Copyright (C) 2005-2014  Mark A Lindner

   This file is part of commonc++.

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 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
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with this library; if not, write to the Free
   Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
   ---------------------------------------------------------------------------
*/

#ifndef __ccxx_MemoryBlock_hxx
#define __ccxx_MemoryBlock_hxx

#include <commonc++/Common.h++>
#include <commonc++/OutOfBoundsException.h++>

namespace ccxx {

class COMMONCPP_API MemoryBlock
{
 public:

  MemoryBlock(byte_t* base = NULL, size_t size = 0)
    : _base(base),
      _size(size)
  { }

  virtual ~MemoryBlock()
  { }

  inline void zero()
  { fill(0); }

  void fill(byte_t value);

  inline byte_t* getBase()
  { return(_base); }

  inline const byte_t* getBase() const
  { return(_base); }

  virtual inline void setBase(byte_t* base)
  { _base = base; }

  inline size_t getSize() const
  { return(_size); }

  inline void setSize(size_t size)
  { _size = size; }

  bool operator==(const MemoryBlock& other) const;

  inline bool operator!=(const MemoryBlock& other) const
  { return(! operator==(other)); }

  byte_t operator[](int index) const;

  byte_t& operator[](int index);

  bool copyFrom(const MemoryBlock& other);

  void moveFrom(MemoryBlock& other);

  int indexOf(byte_t val, uint_t startIndex = 0) const;

  inline bool operator!() const
  { return(_base == NULL); }

 protected:

  byte_t* _base;
  size_t _size;

 private:

  CCXX_COPY_DECLS(MemoryBlock);
};

} // namespace ccxx

#endif // __ccxx_MemoryBlock_hxx