FreeBlock.h

Go to the documentation of this file.

// Mantid Repository : https://github.com/mantidproject/mantid
//
// Copyright © 2011 ISIS Rutherford Appleton Laboratory UKRI,
//   NScD Oak Ridge National Laboratory, European Spallation Source,
//   Institut Laue - Langevin & CSNS, Institute of High Energy Physics, CAS
// SPDX - License - Identifier: GPL - 3.0 +
#pragma once
 
#include "MantidKernel/DllConfig.h"
 
namespace Mantid {
namespace Kernel {
 
class MANTID_KERNEL_DLL FreeBlock {
public:
  FreeBlock() : m_filePos(0), m_size(0) {}
 
  FreeBlock(uint64_t pos, uint64_t size) : m_filePos(pos), m_size(size) {}
 
  inline uint64_t getFilePosition() const { return m_filePos; }
 
  inline uint64_t getSize() const { return m_size; }
 
  //----------------------------------------------------------------
  static bool merge(FreeBlock &first, const FreeBlock &second) {
    if ((first.m_filePos + first.m_size) == second.m_filePos) {
      // Blocks are contiguous and get merged
      first.m_size += second.m_size;
      // Caller will then remove the other block
      return true;
    } else
      return false;
  }
 
public:
  uint64_t m_filePos;
  uint64_t m_size;
};
 
} // namespace Kernel
} // namespace Mantid