AuroraMiddleware/zstd
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
4,783 Commits 1 Branch 0 Tags 27 MiB
25d00d10fc
Commit Graph

119 Commits

Author SHA1 Message Date
Yann Collet
9f8ed23b5b bumped version number to v1.3.4 
also added a paragraph on using compression level with training mode
as this is a recurrent question (see for example #1004)
 2018-01-27 22:23:26 -08:00
Yann Collet
752bae4a48 added warning message 
when pathological dataset is detected
(note : cover_optimize needs -v to display the warning)
 2018-01-11 11:29:28 -08:00
Yann Collet
e8093dde09 fixed #304 
Pathological samples may result in literal section being incompressible.
This case is now detected,
and literal distribution is replaced by one that can be written into the dictionary.
 2018-01-11 11:16:32 -08:00
Yann Collet
218e9fe0fc added a test case for dictBuilder failure 
cyclic data set makes the entropy stage fails
now, onto a fix for #304 ...
 2018-01-11 09:42:38 -08:00
Yann Collet
c173dbd6e7 no longer supported starting C++17 2017-12-04 18:00:53 -08:00
Nick Terrell
6c41adfb28 [libzstd] pthread function prefixed with ZSTD_ 
* `sed -i 's/pthread_/ZSTD_pthread_/g' lib/{,common,compress,decompress,dictBuilder}/*.[hc]`
* Fix up `lib/common/threading.[hc]`
* `sed -i s/PTHREAD_MUTEX_LOCK/ZSTD_PTHREAD_MUTEX_LOCK/g lib/compress/zstdmt_compress.c`
 2017-09-27 11:48:48 -07:00
Yann Collet
77c137b3ae minor comment refactor 2017-09-14 15:12:57 -07:00
Yann Collet
3128e03be6 updated license header 
to clarify dual-license meaning as "or"
 2017-09-08 00:09:23 -07:00
Nick Terrell
376f435914 [dictBuilder] Set default compression level to 3 2017-08-24 16:21:05 -07:00
Dmitriy Titarenko
20f715d709 Fix displayLevel overflow 2017-08-23 15:56:15 +05:00
Yann Collet
bd9c8ca146 Merge pull request #811 from terrelln/segmentSize 
[cover] Fix end condition for small dictionary
 2017-08-22 14:36:30 -07:00
Nick Terrell
29c2d9a4d0 [cover] Turn down notification for ZDICT subroutines 2017-08-21 14:28:31 -07:00
Nick Terrell
98de3f6847 [cover] Add dictionary size to compressed size 2017-08-21 14:23:17 -07:00
Nick Terrell
9a54a315aa [cover] Convert score to U32 and check for zero 2017-08-21 13:30:07 -07:00
Nick Terrell
d49eb40c03 [cover] Stop when segmentSize is less than d 2017-08-21 13:10:03 -07:00
Nick Terrell
f306d400c0 [cover] Fix divide by zero 2017-08-21 11:12:11 -07:00
Yann Collet
32fb407c9d updated a bunch of headers 
for the new license
 2017-08-18 16:52:05 -07:00
Yann Collet
b71363b967 check pthread_*_init() success condition 2017-07-19 01:05:40 -07:00
Yann Collet
2bd6440be0 pinned down error code enum values 
Note : all error codes are changed by this new version,
but it's expected to be the last change for existing codes.

Codes are now grouped by category, and receive a manually attributed value.
The objective is to guarantee that
error code values will not change in the future
when introducing new codes.
Intentionnal empty spaces and ranges are defined
in order to keep room for potential new codes.
 2017-07-13 17:12:16 -07:00
Yann Collet
590937df20 Merge pull request #739 from facebook/refPrefix 
ZSTD_refPrefix
 2017-06-29 04:36:03 -07:00
Yann Collet
7d3816183f exposed ZSTD_MAGIC_DICTIONARY in zstd.h 
makes it easier to explain ZSTD_dictMode
 2017-06-27 13:50:34 -07:00
Nick Terrell
5b7fd7c422 [zdict] Make COVER the default algorithm 2017-06-26 21:09:22 -07:00
Yann Collet
ee970398b2 Merge branch 'dev' into advancedAPI2 2017-05-22 12:33:56 -07:00
Nick Terrell
a1280406b0 [libzstd] Allow users to define custom visibility 2017-05-19 18:01:59 -07:00
Yann Collet
fa3671eac7 changed ZSTD_BLOCKSIZE_ABSOLUTEMAX into ZSTD_BLOCKSIZE_MAX 
Also :
change ZSTD_getBlockSizeMax() into ZSTD_getBlockSize()
created ZSTD_BLOCKSIZELOG_MAX
 2017-05-19 10:51:30 -07:00
Nick Terrell
f376d47c11 [CLI] Switch dictionary builder on CLI to cover 2017-05-02 11:18:27 -07:00
Nick Terrell
020b960e13 [cover] Make optimization faster 2017-05-02 11:02:48 -07:00
Nick Terrell
f2d9ef1dc0 [cover] Optimize case where d <= 8 2017-05-02 11:02:43 -07:00
Nick Terrell
865918dd04 Fix typo in zdict.h 2017-05-02 11:02:37 -07:00
Nick Terrell
5152fb2cb2 Convert all tabs to spaces 2017-03-29 18:51:58 -07:00
Yann Collet
4cf0093571 restored bonus rule 2017-03-26 14:51:00 -07:00
Yann Collet
69017bf253 Merge branch 'dev' into LegacyDictBuilder 2017-03-26 14:39:13 -07:00
Yann Collet
582760818f minor refactor 
add const
changed if for easier to add new conditions
 2017-03-26 03:04:56 -07:00
Yann Collet
858f72eeb8 fixed dictBuilder issue 
dictionary loading would fail during entropy analysis
 2017-03-26 02:50:00 -07:00
Yann Collet
ecee9f2ef8 fixed conversion warnings 2017-03-26 00:59:14 -07:00
Yann Collet
4c41d37fcc changed test for new syntax 
--dictID= and --maxdict=
 2017-03-24 18:36:56 -07:00
Yann Collet
d41f707e88 minor improvement : remove duplicates with 1 char prefix difference 2017-03-24 17:56:45 -07:00
Yann Collet
96aa3019b2 changed advanced commands --maxdict= and --dictID= 
now works with the `=` variant, which is the recommended one.
Old variant `--dictID #` still works, for compatibility with existing scripts.
Long term objective is to remove the old variant..
 2017-03-24 16:04:29 -07:00
Yann Collet
9da3b215ec Ensure all limits derived from same constants 
Now uses ZDICT_DICTSIZE_MIN and ZDICT_CONTENTSIZE_MIN
from zdict.h.

Also : reduced values to 256 and 128 respectively
 2017-03-24 15:02:09 -07:00
Yann Collet
f332ece468 dictBuilder fails to create dictionary on certain input 
Properly expressed with an error code (see zstd_errors.h)
and a cli return code != 0
 2017-03-23 16:24:02 -07:00
Sean Purcell
042ba122ae Change g_displayLevel to int and fix DISPLAYUPDATE flush 2017-03-23 11:21:59 -07:00
Nick Terrell
976e325b2e Fix COVER_optimizeTrainFromBuffer() resource leaks 
Thanks to @nemequ for reporting the resource leaks.
 2017-03-02 15:54:39 -08:00
Nick Terrell
545987996a Fix deprecation warnings for clang with C++14 2017-02-08 17:38:17 -08:00
Nick Terrell
71c5263c00 Attribute cover dictionary code 2017-02-07 11:35:07 -08:00
Nick Terrell
43474313f8 Fix documentation about memory usage 2017-01-27 18:43:05 -08:00
Nick Terrell
2fe9126591 Add multithread support to COVER 2017-01-27 11:56:02 -08:00
Nick Terrell
8d984699db Document memory requirements for COVER algorithm 2017-01-09 18:20:10 -08:00
Nick Terrell
555e281637 Handle large input size in 32-bit mode correctly 2017-01-09 18:20:06 -08:00
Nick Terrell
3a1fefcf00 Simplify COVER parameters 2017-01-02 17:51:38 -08:00
Nick Terrell
96b39f65fa Add COVER dictionary builder 2017-01-02 13:22:51 -08:00