Bill Meier <wmeier@...> writes: > I think the long description boils down to the following: > > Consider the collection of tvbs (chain) as a stack of tvbs. > > packet.c pushes the initial tvb onto the stack then calls next > dissector; After the dissection is complete, the stack is eventually > free'd via a call to tvb_free_chain in epan_dissect_cleanup. > > A dissector: > - can add new tvbs (real, subset, composite) to the stack handed to it; > (Subset and Composite tvbs should reference only tvbs which are > towards the beginning of the same stack). > - must not save a pointer to a tvb from that stack (handed to it) > for use when dissecting another frame (since a > higher level function may very well free the stack); > - can create its own tvb stack which the dissector is free to manage > as desired.
Bill, this information, plus the recent post entitled, "buffer to tvb", got me wondering if there is perhaps enough useful information here worthy of a separate doc/README.tvbuff? - Chris ___________________________________________________________________________ Sent via: Wireshark-dev mailing list <wireshark-dev@wireshark.org> Archives: http://www.wireshark.org/lists/wireshark-dev Unsubscribe: https://wireshark.org/mailman/options/wireshark-dev mailto:wireshark-dev-requ...@wireshark.org?subject=unsubscribe
