AuroraMiddleware/zstd
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9a11f70dc3
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351 Commits

Author SHA1 Message Date
Yann Collet
9a11f70dc3 merged repcode search into BT match search 
this version has same speed as branch `opt`
which is itself 5-10% slower than branch `dev`
(no identified reason)

It does not compress exactly the same as `opt` or `dev`,
maybe because it doesn't stop search after repcodes,
leading to sometimes better compression, sometimes worse
(by a small margin).

warning : _extDict path does not work for the time being
This means that benchmark module works,
but file module will fail with large files (and high compression level).
Objective is to fuse _extDict path into current one,
in order to have a single parser to maintain.
 2017-11-13 02:23:48 -08:00
Yann Collet
4191efa993 zstd_opt: ensure sufficient_len < ZSTD_OPT_NUM to simplify some tests 2017-11-08 11:24:00 -08:00
Yann Collet
8b6aecf2cb moved a few structures from zstd_internal.h to zstd_compress.h 
which is a more precise scope
 2017-11-07 16:03:14 -08:00
Yann Collet
61e5a1adfc removed direct call to malloc() from pool.c 2017-10-31 17:43:24 -07:00
Nick Terrell
a86a7097ec Ensure dictionary Huff table can encode any symbol 
* Ensure that the dictionary Huffman CTable has maxSymbolValue 255.
* Fix a stack buffer overflow during compression dictionary loading.
 2017-10-03 13:22:13 -07:00
Yann Collet
ee1ed78fcb fix proper naming on FSE_createCTable() arguments in fse.h 2017-09-30 11:08:50 -07:00
Yann Collet
86b4fe5b45 adjustCParams : restored previous behavior 
unknowns srcSize presumed small if there is a dictionary (dictSize>0)
and presumed large otherwise.
 2017-09-28 18:14:28 -07:00
Yann Collet
54a827fff0 Merge branch 'dev' into newFormats 
Fixed conflicts in zstdmt_compress.c
 2017-09-27 16:39:40 -07:00
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
9416195221 changed error code when pos<=size condition is not respected 
Now pointing towards src_size or dst_size,
instead of error_GENERIC.
 2017-09-27 10:35:56 -07:00
Yann Collet
df4e9bba25 fixed constant errors for gcc in c99 mode 
C standard does not consider a `static const int` as a constant.
This is a problem for initializer, and ZSTD_STATIC_ASSERT().
Replaced by macro values
 2017-09-26 14:31:06 -07:00
Yann Collet
9f0b8dfbe9 Merge branch 'dev' into newFormats 2017-09-26 14:22:39 -07:00
Nick Terrell
c233bdbaee Increase maximum window size 
* Maximum window size in 32-bit mode is 1GB, since allocations for 2GB fail
  on my Mac.
* Maximum window size in 64-bit mode is 2GB, since that is the largest
  power of 2 that works with the overflow prevention.
* Allow `--long=windowLog` to set the window log, along with
  `--zstd=wlog=#`. These options also set the window size during
  decompression, but don't override `--memory=#` if it is set.
* Present a helpful error message when the window size is too large during
  decompression.
* The long range matcher defaults to a hash log 7 less than the window log,
  which keeps it at 20 for window log 27.
* Keep the default long range matcher window size and the default maximum
  window size at 27 for the API and CLI.
* Add tests that use the maximum window size and hash size for compression
  and decompression.
 2017-09-26 14:00:01 -07:00
Yann Collet
5d8fdd1641 Merge pull request #855 from terrelln/maxoff 
[libzstd] Increase MaxOff
 2017-09-25 16:34:29 -07:00
Yann Collet
b8d4a3887f introduced constant ZSTD_frameIdSize 
within zstd_internal.h
This is the size of magic number.

Avoids using `4` directly in source code, which is a bit less meaningful.
 2017-09-25 15:26:18 -07:00
Nick Terrell
bbe77212ef [libzstd] Increase MaxOff 2017-09-25 13:36:18 -07:00
Yann Collet
7c3dea42ce added prototypes for advanced parameters for decompression API 
required to decode custom formats
 2017-09-24 15:57:29 -07:00
Nick Terrell
74718d7e43 [bitstream] Allow adding 31 bits at a time 2017-09-19 13:57:33 -07:00
Stella Lau
eb3327c10a Merge branch 'dev' of https://github.com/facebook/zstd into ldm-mergeDev 2017-09-11 15:00:01 -07:00
Yann Collet
3128e03be6 updated license header 
to clarify dual-license meaning as "or"
 2017-09-08 00:09:23 -07:00
Stella Lau
eeff55dfa8 Merge remote-tracking branch 'upstream/dev' into ldm-mergeDev 2017-09-06 15:56:32 -07:00
Nick Terrell
423b133568 [POOL] Allow free on NULL when multithreading is disabled 2017-09-05 11:18:13 -07:00
Stella Lau
67d4a6161c Add ldmBucketSizeLog param 2017-09-02 21:55:29 -07:00
Stella Lau
a1f04d518d Move hashEveryLog to cctxParams and update cli 2017-09-01 15:05:47 -07:00
Stella Lau
767a0b3be1 Move ldm hashLog, bucketLog, and mml to cctxParams 2017-09-01 12:24:59 -07:00
Stella Lau
17d8e0bdcc Merge remote-tracking branch 'upstream/longRangeMatcher' into ldm-integrate 2017-09-01 10:19:38 -07:00
Stella Lau
8081becadc Add long distance matching as a CCtxParam 2017-09-01 09:18:58 -07:00
Yann Collet
d963daa6a9 fixed minor warning (empty translation unit) 2017-09-01 00:12:07 -07:00
Yann Collet
d7ad99b2ab Merge branch 'longRangeMatcher' into dev 2017-08-31 18:08:37 -07:00
Stella Lau
6a546efb8c Add long distance matcher 
Move last literals section to ZSTD_block_internal
 2017-08-31 12:53:19 -07:00
Yann Collet
e21384fffb fixed more file headers after license change (#825) 2017-08-31 12:11:57 -07:00
Yann Collet
e9dc204f42 fixed a bunch of headers after license change (#825) 2017-08-31 11:24:54 -07:00
Stella Lau
ee65701720 Minor fixes; remove formatting only changes 2017-08-29 20:27:35 -07:00
Stella Lau
c7a18b7c21 Localize 'dictMode' from cctx to function param 2017-08-29 15:52:24 -07:00
Nick Terrell
9822f97721 [error] Don't guard undef X with ifdef X 2017-08-29 11:54:38 -07:00
Nick Terrell
02033be08c [pool] Visual Studios disallows empty structs 2017-08-28 17:19:01 -07:00
Nick Terrell
7c365eb02c [threading] Fix ERROR macro after including windows.h 2017-08-28 16:25:02 -07:00
Stella Lau
024098a47d Fix parameter retrieval from cdict 2017-08-25 17:58:28 -07:00
Stella Lau
2adde898c8 Fix typo with ZSTDMT_parameter 2017-08-25 16:13:40 -07:00
Stella Lau
eb7bbab36a Remove ZSTD_p_refDictContent and dictContentByRef 2017-08-25 11:11:45 -07:00
Nick Terrell
de6c6bce85 Fix zstd_internal.h for C++ mode 2017-08-24 18:09:50 -07:00
Nick Terrell
26dc040a7b [pool] Accept custom allocators 2017-08-24 17:01:41 -07:00
Nick Terrell
89dc856cae [pool] Fix formatting 2017-08-24 16:48:32 -07:00
Stella Lau
5bc2c1e982 Add prototype support for customMem with cctxParams 2017-08-23 12:03:30 -07:00
Stella Lau
6f1a21c7e9 Remove formatting-only changes 2017-08-23 10:24:19 -07:00
Stella Lau
23fc0e41fa Remove 'opaque' naming from internal functions 2017-08-22 14:24:47 -07:00
Stella Lau
8fd1636776 Remove unused functions 2017-08-22 13:33:58 -07:00
Stella Lau
e50ed1fa3a Fix undefined behavior when srcSize==1 2017-08-22 11:55:42 -07:00
Stella Lau
5b956f4753 Comment out CCtx_param versions of CDict functions 2017-08-21 14:49:16 -07:00
Stella Lau
502031ca10 Use cctxParam version of createCDict internally 2017-08-21 11:00:44 -07:00