Linux, no output from interface method

[jurijr]

Pretty much new to using dbus and I have following sample, that wouldn't work for me.

I use "org.freedesktop.ScreenSaver" interface with method int GetIdleTime() to retrieve idle duration,
and "com.canonical.Unity.Session" interface to provide Locked event.

I retrieve instances of both interfaces using T GetObject
Everything works fine so far, untill,
if, for example I call GetIdleTime() inside Locked event delegate.

Once locked event occur, and tries to read idle time, it never completes reading it. No exceptions, just hangs.
I tried looping idle time every 200ms for example, even while passing into Locked state, and out, no problems there.

Could someone please clarify if I am misusing the dbus or deadlock like this happens by design??

Edit
Tried to bubble event with reactive extensions and schedule subscription on new thread and it seemed to work now.