zPhysicalMemoryBacking_bsd.hpp

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
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#ifndef OS_BSD_GC_Z_ZPHYSICALMEMORYBACKING_BSD_HPP
#define OS_BSD_GC_Z_ZPHYSICALMEMORYBACKING_BSD_HPP

class ZPhysicalMemoryBacking {
private:
  uintptr_t _base;
  bool      _initialized;

  bool commit_inner(size_t offset, size_t length) const;

public:
  ZPhysicalMemoryBacking(size_t max_capacity);

  bool is_initialized() const;

  void warn_commit_limits(size_t max_capacity) const;

  size_t commit(size_t offset, size_t length) const;
  size_t uncommit(size_t offset, size_t length) const;

  void map(uintptr_t addr, size_t size, uintptr_t offset) const;
  void unmap(uintptr_t addr, size_t size) const;
};

#endif // OS_BSD_GC_Z_ZPHYSICALMEMORYBACKING_BSD_HPP