February 10th, 2012, 06:42 PM
tracing source and tracing sink
I am reading the Ns3 tutorial - tracing system .
I am so confused ! I can't seem to grab fully understand the Tracing source and Tracing sink.
I understood that :
Tracing source generates events . They contains a list of callback functions
Trace Sink : when connected to the Tracing source, gets notified when event happen/change . and they do certain things with the information gathered.
I understood this in Theory, but lets boil it down to the NS3 Tracing system.
1 ) Can anybody give me an example about : Tracing Source and Tracing sink ?
2) Are the tracing source build in codes ?
3) Are the trace sinks build in codes or I have to write them ??
4) Let me quote from the tutorial :
what does that mean ?!!
When a trace sink expresses interest in notifications from a trace source, it basically just arranges to add its own function to the callback list.
PS: I did try to read the whole page MANY MANY times and I couldnt fully understand what is really going on there !
your help is HIGHLY appreciated
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