Class unique_fd_impl

Bcore/src/main/cpp/android-base/unique_fd.h:60–94

template <typename Closer>
class unique_fd_impl final {
 public:
  unique_fd_impl() : value_(-1) {}

  explicit unique_fd_impl(int value) : value_(value) {}
  ~unique_fd_impl() { reset(); }

  unique_fd_impl(unique_fd_impl&& other) : value_(other.release()) {}
  unique_fd_impl& operator=(unique_fd_impl&& s) {
    reset(s.release());
    return *this;
  }

  void reset(int new_value = -1) {
    if (value_ != -1) {
      Closer::Close(value_);
    }
    value_ = new_value;
  }

  int get() const { return value_; }
  operator int() const { return get(); }

  int release() __attribute__((warn_unused_result)) {
    int ret = value_;
    value_ = -1;
    return ret;
  }

 private:
  int value_;

  unique_fd_impl(const unique_fd_impl&);
  void operator=(const unique_fd_impl&);
};

using unique_fd = unique_fd_impl<DefaultCloser>;