I was troubleshooting my dissector for a while and realized following:

- Open a file without any display filters
- The dissector is first being called with tree = NULL as expected for 
all protocol specific packets (having data from 164 to 1227)
- Then it is called again with pinfo->fd->num == 512 and tree being 
specified

This is killing me. In order to optimize for performance, I do not 
populate all data structures when tree is null.
And when it is not null, I expect all packets before hand being called 
in the same way, to have the details needed.

Is a dissector supposed to be able to handle something like this, i.e. 
being called with tree specified somewhere in the middle of the stream?
If I need to, I will need to ignore the performance optimization.

Or is it a bug? This behavior is still true on the latest SVN from today.
Removing a few non related packets at the start, and I'm not being 
called with tree != null.

- David
___________________________________________________________________________
Sent via:    Wireshark-dev mailing list <[email protected]>
Archives:    http://www.wireshark.org/lists/wireshark-dev
Unsubscribe: https://wireshark.org/mailman/options/wireshark-dev
             mailto:[email protected]?subject=unsubscribe

Reply via email to