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namespace mozilla {

template <>
struct RefPtrTraits {
  static void AddRef(DBusMessage* aMessage) {
    MOZ_ASSERT(aMessage);
    dbus_message_ref(aMessage);
  }
  static void Release(DBusMessage* aMessage) {
    MOZ_ASSERT(aMessage);
    dbus_message_unref(aMessage);
  }
};

template <>
struct RefPtrTraits {
  static void AddRef(DBusPendingCall* aPendingCall) {
    MOZ_ASSERT(aPendingCall);
    dbus_pending_call_ref(aPendingCall);
  }
  static void Release(DBusPendingCall* aPendingCall) {
    MOZ_ASSERT(aPendingCall);
    dbus_pending_call_unref(aPendingCall);
  }
};

/*
 * |RefPtrTraits| specializes |RefPtrTraits<>|
 * for managing |DBusConnection| with |RefPtr|.
 *
 * |RefPtrTraits| will _not_ close the DBus
 * connection upon the final unref. The caller is responsible
 * for closing the connection.
 */
template <>
struct RefPtrTraits {
  static void AddRef(DBusConnection* aConnection) {
    MOZ_ASSERT(aConnection);
    dbus_connection_ref(aConnection);
  }
  static void Release(DBusConnection* aConnection) {
    MOZ_ASSERT(aConnection);
    dbus_connection_unref(aConnection);
  }
};

/*
 * |DBusConnectionDelete| is a deleter for managing instances
 * of |DBusConnection| in |UniquePtr|. Upon destruction, it
 * will close an open connection before unref'ing the data
 * structure.
 *
 * Do not use |UniquePtr| with shared DBus connections. For
 * shared connections, use |RefPtr|.
 */
class DBusConnectionDelete {
 public:
  constexpr DBusConnectionDelete() {}

  void operator()(DBusConnection* aConnection) const {
    MOZ_ASSERT(aConnection);
    if (dbus_connection_get_is_connected(aConnection)) {
      dbus_connection_close(aConnection);
    }
    dbus_connection_unref(aConnection);
  }
};

}  // namespace mozilla