This lets us get rid of the per-frame_data-structure prev and next
pointers, saving memory (at least according to Activity Monitor's report
of the virtual address space size on my Snow Leopard machine, it's a
noticeable saving), and lets us look up frame_data structures by frame
number in O(log2(number of frames)) time rather than O(number of frames)
time. It seems to take more CPU time when reading in the file, but
seems to go from "finished reading in all the packets" to "displaying
the packets" faster and seems to free up the frame_data structures
faster when closing the file.
It *is* doing more copying, currently, as we now don't allocate the
frame_data structure until after the packet has passed the read filter,
so that might account for the additional CPU time.
(Oh, and, for what it's worth, on an LP64 platform, a frame_data
structure is exactly 128 bytes long. However, there's more stuff to
remove, so the power-of-2 size is not guaranteed to remain, and it's not
a power-of-2 size on an ILP32 platform.)
It also means we don't need GLib 2.10 or later for the two-pass mode in
TShark.
It also means some code in the TCP dissector that was checking
pinfo->fd->next to see if it's NULL, in order to see if this is the last
packet in the file, no longer works, but that wasn't guaranteed to work
anyway:
we might be doing a one-pass read through the capture in TShark;
we might be dissecting the frame while we're reading in the
packets for the first time in Wireshark;
we might be doing a live capture in Wireshark;
in which case packets might be prematurely considered "the last packet".
#if 0 the no-longer-working tests, pending figuring out a better way of
doing it.
svn path=/trunk/; revision=36849
allocate them to be large enough.
Add checks that the numbers in the range fit in a guint32.
Check the validity of a range before saving or printing, and report
errors in an alert box.
Clean up white space.
svn path=/trunk/; revision=12320
number of ranges - 1, and update loops that iterate over all the ranges
appropriately.
Make "range_convert_str()" return a success/failure indication, and
check it. Rewrite it to do more checks, and not to blithely ignore
unknown characters.
svn path=/trunk/; revision=12313
really more of an Ethereal/Tethereal component than a libethereal
component (nothing else in libethereal knows about capture files); move
it back out of libethereal. (The range stuff doesn't; we leave it in
libethereal.)
svn path=/trunk/; revision=11898
Guy Harris