Asynchronous method calls

[Luigi Paioro]

Hello all!

I have a question which is specific for the dbus-python bindings, but I 
think it can be viewed as a general issue.


Suppose I have an object which exposes a method myMethod(arg1, arg2, 
...). Now I want to call it 3 times asynchronously with different 
arguments each time:

call 1: myMethod(1, 2, 3, ...)
call 2: myMethod(6, 2, 4, ...)
call 3: myMethod(8, 10, 3, ...)

Using reply_handler and error_handler I easily link the responses to a 
suitable callback function. As a result I can have 3 callbacks which are 
in a different time order respect the calls:

response 1: callback of call 2
response 2: callback of call 3
response 3: callback of call 1

The problem is that I cannot recognize each response to which original 
call are related (and sometime it can be important). I could do it 
passing a call ID as an argument and getting it from the response, but 
I'm wondering whether there could be another inner mechanism in DBus 
itself or not.

Thank you in advance.


Cheers,

   Luigi