1 files changed, 42 insertions, 0 deletions
diff --git a/ipc/dbus/DBusConnectionDelete.h b/ipc/dbus/DBusConnectionDelete.h
new file mode 100644
index 000000000..80e47d14e
--- /dev/null
+++ b/ipc/dbus/DBusConnectionDelete.h
@@ -0,0 +1,42 @@
+/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_ipc_DBusConnectionDelete_h
+#define mozilla_ipc_DBusConnectionDelete_h
+
+#include <dbus/dbus.h>
+#include "mozilla/UniquePtr.h"
+
+namespace mozilla {
+
+/*
+ * |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
+
+#endif // mozilla_ipc_DBusConnectionDelete_h