lib/dbus/Glue: move Connect()/Disconnect() calls to I/O thread

src/lib/dbus/Glue.cxx

@@ -19,10 +19,23 @@
 
 #include "config.h"
 #include "Glue.hxx"
+#include "event/Call.hxx"
 
 namespace ODBus {
 
 void
+Glue::ConnectIndirect()
+{
+	BlockingCall(GetEventLoop(), [this](){ Connect(); });
+}
+
+void
+Glue::DisconnectIndirect()
+{
+	BlockingCall(GetEventLoop(), [this](){ Disconnect(); });
+}
+
+void
 Glue::Connect()
 {
 	watch.SetConnection(Connection::GetSystemPrivate());

src/lib/dbus/Glue.hxx

@@ -35,11 +35,11 @@ class Glue final : ODBus::WatchManagerObserver {
 public:
 	explicit Glue(EventLoop &event_loop)
 		:watch(event_loop, *this) {
-		Connect();
+		ConnectIndirect();
 	}
 
 	~Glue() noexcept {
-		Disconnect();
+		DisconnectIndirect();
 	}
 
 	EventLoop &GetEventLoop() noexcept {
@@ -51,6 +51,9 @@ public:
 	}
 
 private:
+	void ConnectIndirect();
+	void DisconnectIndirect();
+
 	void Connect();
 	void Disconnect();