Wireshark · Wireshark-commits: [Wireshark-commits] rev 42423: /trunk/wiretap/ /trunk/wiretap/: 5views.c aethra.c airopeek9.c ascend

[guy@xxxxxxxxxxxxx]

http://anonsvn.wireshark.org/viewvc/viewvc.cgi?view=rev&revision=42423

User: guy
Date: 2012/05/04 09:56 AM

Log:
 file_seek() used to be a wrapper around fseek() or gzseek(), both of
 which could use lseek() and were thus expensive due to system call
 overhead.  To avoid making a system call for every packet on a
 sequential read, we maintained a data_offset field in the wtap structure
 for sequential reads.
 
 It's now a routine that just returns information from the FILE_T data
 structure, so it's cheap.  Use it, rather than maintaining the data_offset
 field.
 
 Readers for some file formats need to maintain file offset themselves;
 have them do so in their private data structures.

Directory: /trunk/wiretap/
  Changes    Path                     Action
  +1 -7      5views.c                 Modified
  +1 -5      aethra.c                 Modified
  +1 -5      airopeek9.c              Modified
  +0 -2      ascendtext.c             Modified
  +5 -4      ber.c                    Modified
  +1 -5      btsnoop.c                Modified
  +3 -6      catapult_dct2000.c       Modified
  +1 -6      commview.c               Modified
  +0 -2      cosine.c                 Modified
  +1 -6      csids.c                  Modified
  +1 -4      daintree-sna.c           Modified


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