| 1 | Revision history for Perl extension Convert::UUlib. |
1 | Revision history for Perl extension Convert::UUlib. |
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| 3 | _FP_gets still 70% of scan time. decode time: 24% _FP_gets, uulib_crc32 23%, UUValidData 11% |
3 | TODO: biggest timesinks: FP_fgets/getc_unlocked overall, UUInsertPartToList dominates large loads due to O(n**2) search |
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5 | - trust filename from yenc header more. |
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6 | - remove debug message file cvs id's, which didn't work anymore, replace UUMessage |
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7 | by a macro and remove file and line numbers from callers. |
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8 | - remove some pre-c99 support. |
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9 | |
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10 | 1.8 Thu Dec 17 02:23:53 CET 2020 |
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11 | - no bugfixes in this release due to lack of known bugs, but the major changes |
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12 | in this release might have introduced new bugs, so watch out. |
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13 | - update large decoder example to disable OPT_AUTOCHK and use Smerge -1. |
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14 | - some micro-optimisations. |
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15 | - avoid costly string comparisons by comparing hashes when isnerting items, |
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16 | which speeds up insertion by a constant factor. |
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17 | - improve uulist (and other) structure layout and size. |
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18 | - reverse the order of file list items, which heuristically improves |
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19 | match speed with large usenet file lists. |
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20 | - use getc instead of fgetc, which makes no difference on gnu/linux, |
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21 | but might, elsewhere. |
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22 | - clean up _FP symbol names to not start with an underscore. |
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23 | - use feof_unlocked and ferror_unlocked. |
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24 | - implement a faster ascii-only strnicmp. |
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25 | - misc very minor code improvements. |
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26 | - remove quite a bit of pre-posix/dos/etc. cruft. |
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27 | - use flockfile, if available, for a potential but small |
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28 | speed gain. |
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29 | - speed up inner yenc decoder loop. |
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30 | - kentnl said that this module should no longer claim to be a simple |
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31 | interface to uulib, as the bunndled copy is now better maintained |
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32 | than the original upstream library. |
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33 | |
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34 | 1.71 Tue Mar 17 00:54:06 CET 2020 |
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35 | - backport to c89 (patch by Paul Howarth). |
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36 | |
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37 | 1.7 Sat Feb 29 22:07:54 CET 2020 |
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38 | - new function: GetFileList. |
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39 | - experimental perlmulticore support (see manpage). |
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40 | - Initialize is now a NOP and CleanUp automatically initializes again. |
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41 | - updated example decoder and documentation a bit. |
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42 | - include ecb.h to deal with compiler builtins and endianness. |
| 5 | - some further µ-optimisations in hot code. |
43 | - some further µ-optimisations in hot code, especially for yEnc. |
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44 | - replace crc32 function by slice-by-16 version by Stephan Brumme, |
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45 | which should speed up yEnc en-/decoding. |
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46 | - yEnc: do not calculate two crcs per part, instead, combine |
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47 | the part crcs together to form the file crc. |
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48 | - yEnc: allow pcrc= in addition to pcrc32= for yenc trailers, as |
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49 | some draft mentions both and it is actually in active use. |
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50 | - yEnc: ignore crc32= on multiparts, except on the last part, |
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51 | which avoids spurious corruption warnings. |
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52 | - be more precise in documenting code licenses in COPYING. |
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53 | - convert constant creation to the method I normally use. |
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54 | - use common::sense. |
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55 | |
| 7 | 1.62 Mon Feb 17 23:19:42 CET 2020 |
56 | 1.62 Mon Feb 17 23:19:42 CET 2020 |
| 8 | - major performance improvement by simplifying code in _FP_gets |
57 | - major performance improvement by simplifying code in _FP_gets |
| 9 | to not use fscanf. This might slow things down on platforms |
58 | to not use fscanf. This might slow things down on platforms |
| 10 | with very slow fgetc. |
59 | with very slow fgetc. |
