DeviceFound and DeviceDisappeared signals

[Ilya Rubtsov <lusyaru@gmail.com>]

Hi! I have some troubles with using DeviceFound and DeviceDisappeared 
signals. I use simple test script: http://pastebin.com/m45de7894 . There 
are two cases: if I use software inquire scheduler and if I use hardware 
one.

Hardware scheduler. Bluetooth module in phone is on and I run script:
---
ilya@ilya-laptop:~/blue$ python fodis.py
Fri May  1 16:36:44 2009 Signal: DeviceFound 00:16:B8:53:5F:17
---
And no more signals. Then I wait 2 mins, turn off Bluetooth in phone and 
wait 2 more mins, but no one signal is emitted.
I don't know if DeviceFound signal should be emitted on every inquire, 
maybe not. But I'm sure DeviceDisappeared signal should be emitted at 
least once :)


Software scheduler ("DiscoverSchedulerInterval = 1" at main.conf). 
Bluetooth module in phone is on and I run script:
---
ilya@ilya-laptop:~/blue$ python fodis.py
Fri May  1 16:43:52 2009 Signal: DeviceFound 00:16:B8:53:5F:17
Fri May  1 16:44:11 2009 Signal: DeviceDisappeared 00:16:B8:53:5F:17
Fri May  1 16:44:14 2009 Signal: DeviceFound 00:16:B8:53:5F:17
Fri May  1 16:44:34 2009 Signal: DeviceDisappeared 00:16:B8:53:5F:17
Fri May  1 16:44:37 2009 Signal: DeviceFound 00:16:B8:53:5F:17
Fri May  1 16:44:57 2009 Signal: DeviceDisappeared 00:16:B8:53:5F:17
Fri May  1 16:45:00 2009 Signal: DeviceFound 00:16:B8:53:5F:17
Fri May  1 16:45:20 2009 Signal: DeviceDisappeared 00:16:B8:53:5F:17
Fri May  1 16:45:23 2009 Signal: DeviceFound 00:16:B8:53:5F:17
### At this moment I turn off Bluetooth in phone
Fri May  1 16:45:43 2009 Signal: DeviceDisappeared 00:16:B8:53:5F:17
---

So, both signals was emitted on every inquiry. I think this is wrong 
behavior. Am I right?
And DeviceDisappeared was emitted once after remote device was actually 
turned off. That's good :)