rw_lock.hpp

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#pragma once
 
#include <shared_mutex>
 
#include "detail/read_guard.hpp"
#include "detail/write_guard.hpp"
 
namespace bricks {
 
template <class Class>
class rw_lock : private Class {
 private:
  friend class detail::read_guard<rw_lock>;
  friend class detail::write_guard<rw_lock, std::shared_mutex>;
 
 public:
  using value_type = Class;
 
  using read_guard = detail::read_guard<rw_lock>;
  using write_guard = detail::write_guard<rw_lock, std::shared_mutex>;
 
  using Class::Class;
 
  auto read() const noexcept -> read_guard { return read_guard{*this, mutex_}; }
 
  auto write() noexcept -> write_guard { return write_guard{*this, mutex_}; }
 
 private:
  mutable std::shared_mutex mutex_;
};
 
}  // namespace bricks