Posts in category research

Licornd is now fully interactive

You can debug licornd in a live interactive session. Just start it in the foreground (licornd -D), and press 'i' . You can access every object and do whatever you want (trigger a method, dump an object, really whatever the python language allows you ; so be carefull, you're root...).

Bonus: everything is auto-completed with <TAB>, like any interactive shell can be, and your command history is saved to ~/.licorn/licornd_history (thanks to readline).

Press Control-D when you are done to leave interactive mode and return to standard command mode.

The interactive session is implemented in a separate thread. The licorn daemon stays fully functionnal during it. Stopping and restarting individual things manually will probably come in the near future, but as of now if your display gets corrupted with other daemon output, just hit Control-L to clear your screen.

Example session: 

olive@desktop-001 ~/licorn @ licornd -D
 * [2010/04/12 01:01:44.8412] licornd/master@server(5124): starting all threads.
 * [2010/04/12 01:01:44.8454] licornd/wmi(5129): started, waiting for master to become ready.
 * [2010/04/12 01:01:44.9980] licornd/master@server(5124): all threads started, going to sleep waiting for signals.
 * [2010/04/12 01:01:45.4224] licornd/wmi(5129): ready to answer requests at address http://localhost:3356/.
 * [2010/04/12 01:01:47.6714] Entering interactive mode. Welcome into licornd's arcanes…
Licorn® @DEVEL@, Python 2.6.6 (r266:84292, Sep 15 2010, 15:52:39) [GCC 4.4.5] on linux2
licornd> LMC.users.keys()
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 13, 33, 34, 38, 39, 41, 300, 113, 100, 101, 102, 103, 1000, 105, 106, 107, 108, 109, 110, 111, 112, 104, 114, 115, 116, 117, 65534]
licornd> dqueues
{'pyrosys': <Queue.Queue instance at 0x9c7a18c>, 'reverse_dns': <Queue.Queue instance at 0x9c7a04c>, 'arppings': <Queue.Queue instance at 0x9c71eec>, 'pings': <Queue.Queue instance at 0x9c71dac>}
licornd> 
 * [2010/04/12 01:02:24.0383] Leaving interactive mode. Welcome back to Real World™.
 * [2010/04/12 01:02:25.3743] licornd/master@server: signal 2 received, shutting down…
 * [2010/04/12 01:02:25.3748] licornd/wmi: signal 15 received, shutting down…
 * [2010/04/12 01:02:25.3751] licornd/wmi: exiting.
 * [2010/04/12 01:02:25.5468] licornd/master@server: exiting (up 40 secs).

PS: i really love Python. These kind of things are just amazing.

PS2: the implementation can be incomplete, I didn't really test every object. Just report any bug you find and I will fix it ASAP.