memorymappedfile.h

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#ifndef ION_PORT_MEMORYMAPPEDFILE_H_
#define ION_PORT_MEMORYMAPPEDFILE_H_

#include "base/macros.h"

#if defined(ION_PLATFORM_WINDOWS)
#include <winnt.h>
#endif

namespace ion {
namespace port {

class ION_API MemoryMappedFile {
 public:
  explicit MemoryMappedFile(const std::string& path);
  ~MemoryMappedFile();

  const void* GetData() const;

  size_t GetLength() const;

 private:
  void* data_;  // Beginning of the mapped region.
  size_t length_;  // Length of the mapped region.
#if defined(ION_PLATFORM_WINDOWS)
  HANDLE mapping_;
#endif

  DISALLOW_IMPLICIT_CONSTRUCTORS(MemoryMappedFile);
};

}  // namespace port
}  // namespace ion

#endif  // ION_PORT_MEMORYMAPPEDFILE_H_