AuroraMiddleware/zstd
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6cb2454646
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2531 Commits

Author SHA1 Message Date
W. Felix Handte
6cb2454646 Remove CParams from Block Compressor Functions' Args 2018-09-28 17:10:42 -07:00
W. Felix Handte
03103269de Assert ctx and ms cparams Equivalency 2018-09-28 17:10:42 -07:00
W. Felix Handte
4e3ecee9ed Remove cParams from CDict 2018-09-28 17:10:42 -07:00
W. Felix Handte
76ef87ed9d Add ZSTD_compressionParameters to ZSTD_matchState_t 2018-09-28 17:10:42 -07:00
Yann Collet
73773c6b6a fixed legacy compilation tests 
for some reason, these tests started failing recently on CircleCI
 2018-09-27 18:15:14 -07:00
Nick Terrell
a180ea07c4 Restore ZSTD_noCompressBlock() for clarity 2018-09-27 16:06:02 -07:00
Nick Terrell
aec1a3ec58 Change byte to value to avoid a GRUB typedef 2018-09-27 15:24:48 -07:00
Nick Terrell
109bd37474 Include stddef.h for size_t 2018-09-27 15:24:48 -07:00
Nick Terrell
f2d6db45cd [zstd] Add -Wmissing-prototypes 2018-09-27 15:24:48 -07:00
Yann Collet
2a5cd8535a
Merge pull request #1342 from facebook/fixcatyd 
fix : huge (>4GB) chain of blocks
 2018-09-27 10:20:14 -07:00
Yann Collet
404a7bfed0 moved again overflow correction 
cannot work from within ZSTD_compressBlock()
 2018-09-26 18:06:53 -07:00
Yann Collet
0e2dbac18a changed overflow correction place 
keep one in compress_frameChunk(),
so that it's tested at every loop
in case some user simply some large mulit-GB input in a single invocation.

Add one in ZSTD_compressBlock(),
since compressBlock() explicitly skips frameChunk().
 2018-09-26 15:35:38 -07:00
Yann Collet
e74eade251
Merge pull request #1339 from facebook/grep_colors 
fixed usage of grep in Makefile
 2018-09-26 14:39:20 -07:00
Yann Collet
8883af6a1e
Merge pull request #1327 from facebook/adapt 
Adaptive compression
 2018-09-26 14:39:08 -07:00
Yann Collet
f98c69d77c fix : huge (>4GB) stream of blocks 
experimental function ZSTD_compressBlock() is designed for very small data in mind,
for situation where saving the ~12 bytes of frame header can actually make a difference.

Some systems though may have to deal with small and large data entangled.
If it's larger than a block (> 128KB), compressBlock() cannot compress them in one round.

That's why it's possible to compress in multiple rounds.
This is a chain of compressed blocks.

Some users push this capability to the limit, encoding gigantic chain of blocks.
On crossing the 4GB limit, some internal overflow occurs.

This fix moves the overflow correction mechanism higher in the call chain,
so that it's applied also to gigantic chains of blocks.

Added a test case in fuzzer.c, which crashes before the fix, and pass now.
 2018-09-26 14:24:28 -07:00
Yann Collet
8ff17a6a09
Merge pull request #1329 from facebook/v04isout 
Changed default legacy support to v0.5+
 2018-09-26 13:39:05 -07:00
Yann Collet
08f68d83c5 fixed usage of grep in Makefile 
when terminal uses colors
as suggested by @danielshir (#1294)
 2018-09-25 16:56:53 -07:00
Yann Collet
04f47bbdd2 Merge branch 'dev' into adapt 2018-09-24 16:56:45 -07:00
Yann Collet
9bb6c15f79
Merge pull request #1332 from facebook/minclevel 
defined a minimum negative level
 2018-09-24 16:01:13 -07:00
Yann Collet
292d8e4a83 added some tests based on limits.h 
in order to ensure proper type mapping
when not using stdint.h
 2018-09-23 23:57:30 -07:00
Yann Collet
71a5210617 avoid recompiling dll every time under mingw 2018-09-21 17:40:30 -07:00
Yann Collet
c484345a82 Merge branch 'mingw' into adapt 2018-09-21 16:00:46 -07:00
Yann Collet
bfff4f4809 ensure all writes to job->cSize are mutex protected 
even when reporting errors,
using a macro for code brevity, as suggested by @terrelln,
 2018-09-21 16:00:39 -07:00
Yann Collet
32b7cf1bcf fixed tautological tests 
involving ZSTD_TARGETLENGTH_MIN (== 0)
 2018-09-21 15:04:43 -07:00
Yann Collet
c044345f8f Merge branch 'mingw' into minclevel 2018-09-21 14:56:57 -07:00
Yann Collet
de6c75e4e5
Merge pull request #1318 from felixhandte/shadow-dict-matches 
Don't Search Dictionary Context When Working Context Search Resulted in Mismatch
 2018-09-21 12:15:33 -07:00
Yann Collet
a54c86cfc6 defined a minimum negative level 
which can be probed using new function ZSTD_minCLevel().

Also : redefined ZSTD_TARGETLENGTH_MIN/MAX for consistency

used the opportunity to bump version number to v1.3.6
 2018-09-20 16:52:03 -07:00
Yann Collet
b2939163e1 Changed default legacy support to v0.5+ 
thus dropping read support for v0.4.

It's always possible to re-enable it, by changing build macro ZSTD_LEGACY_SUPPORT to 4.
 2018-09-20 14:30:20 -07:00
Yann Collet
7992942d66 fixed complex tsan issue 
when job->consumed == job->src.size , compression job is presumed completed,
so it must be the very last action done in worker thread.
 2018-09-20 13:47:31 -07:00
Yann Collet
6b07a66aec fixed minor reporting discrepancy in MT mode 2018-09-19 16:30:55 -07:00
Yann Collet
ca02ebee07 removed static variables 
so that --adapt can work on multiple input files too
 2018-09-19 15:25:50 -07:00
Yann Collet
89bc309d90 error out when --adapt is associated with --single-thread 
since they are not compatible
 2018-09-19 14:49:13 -07:00
Yann Collet
2f78228f65 Merge branch 'dev' into adapt 2018-09-19 12:43:42 -07:00
Yann Collet
005f000aed updated documentation of *refPrefix() 
indicating the equivalence with `diff` operation.
 2018-09-18 13:07:08 -07:00
ko-zu
18b4a1da61 Fix clang build 
Fix dixygen comment
Fix clang binary path
 2018-09-16 10:27:02 +09:00
Yann Collet
7269fe6cd3 minor code comment update 2018-09-14 16:06:35 -07:00
Yann Collet
0403148315
Merge pull request #1295 from felixhandte/hdr-intro-comment-negative-lvls 
Proposed Update to Zstd.h Introduction Comment
 2018-09-14 15:29:19 -07:00
W. Felix Handte
b76c888497 ZSTD_dfast: Don't Search Dict Context When Mismatch Was Found 2018-09-14 15:24:25 -07:00
W. Felix Handte
b048af5999 ZSTD_fast: Don't Search Dict Context When Mismatch Was Found 2018-09-14 15:23:35 -07:00
Yann Collet
0e5b447aaa
Merge pull request #1316 from facebook/coldDict 
Cold dictionary mitigation
 2018-09-14 10:37:46 -07:00
Yann Collet
5512400677 updated code comments, based on @terrelln review 2018-09-13 16:44:04 -07:00
Yann Collet
d195eec97e fixed msan error 
cold dictionary is detected through a comparison with dictEnd,
which was not initialized at the beginning of first DCtx usage.
 2018-09-13 12:29:52 -07:00
Yann Collet
674dd21bd0 final parameter tuning 2018-09-12 17:25:34 -07:00
Yann Collet
419dfd4ea3 clean traces 2018-09-12 16:40:28 -07:00
Yann Collet
2618253da2 fixed PREFETCH() macro 
for corner cases and platforms without this instruction
 2018-09-12 16:15:37 -07:00
Yann Collet
44d3b83bb1 conditional dict content prefetching 
based on nbSeq.
 2018-09-12 15:35:21 -07:00
Yann Collet
5fb5ed3b31 adjust heuristic decisions 2018-09-12 12:32:09 -07:00
Nick Terrell
f6daddf2db Also allow x86 2018-09-12 12:05:32 -07:00
Nick Terrell
1e0bac6a9c [libzstd] Fix cpu for MSFT ARM 
The `__cpuid()` and `__cpuidex()` intrinsics are only available
on x86 and x86_64.
 2018-09-12 10:35:16 -07:00
Yann Collet
4de344d505 added conditional prefetch 
depending on amount of work to do.
 2018-09-12 10:29:47 -07:00