AuroraMiddleware/zstd
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268 Commits

Author SHA1 Message Date
Yann Collet
11a392ce23 minor markdown formatting fix 2020-05-26 13:15:35 -07:00
Yann Collet
bb3c9bf43a updated spec on dictID==0 
Specified decoder behavior on receiving a frame with dictID=0.

Pushed paragraph on reserved DictID ranges into the Dictionary Format section.
 2020-05-25 08:15:09 -07:00
Yann Collet
f22b371e31 updated documentation for v1.4.5 
API manual and man pages
 2020-05-14 16:17:03 -07:00
Nick Terrell
ac58c8d720 Fix copyright and license lines 
* All copyright lines now have -2020 instead of -present
* All copyright lines include "Facebook, Inc"
* All licenses are now standardized

The copyright in `threading.{h,c}` is not changed because it comes from
zstdmt.

The copyright and license of `divsufsort.{h,c}` is not changed.
 2020-03-26 17:02:06 -07:00
Yann Collet
9a71d07aa4
added ability to remove error messages and dictionary support (#1975) 
for the benefit of smaller binary.
 2020-01-27 11:39:29 -08:00
Yann Collet
5bcd6448b6
refactor of harness, for clarity (#1974) 
following #1953 (false positive, due to heuristic confusion)
 2020-01-24 20:16:28 -08:00
Yann Collet
098b36e9ab clarifications for Block_Maximum_Size 
as a follow up of #1882
 2019-11-13 09:50:15 -08:00
Yann Collet
74065da4c5 updated API inline doc and manual 
regarding ZSTD_CDict created without a dictBuffer.
 2019-10-28 11:15:41 -07:00
Yann Collet
111b0c53b0 update documentation on deprecated functions 
mostly : note that these functions will soon generate deprecation warnings
 2019-10-22 13:51:18 -07:00
Yann Collet
6cf04c0344
Merge pull request #1834 from facebook/winFix 
Windows fixes
 2019-10-21 13:45:17 -07:00
Yann Collet
ff7bd16c0a clarifications for the FSE decoding table 
requested in #1782
 2019-10-18 17:48:12 -07:00
Yann Collet
5b8e873357 fix harness test 2019-10-17 14:29:48 -07:00
Yann Collet
a0c041612d fixed dict ptr init 2019-10-17 14:15:00 -07:00
Yann Collet
b062b6fb2d minor refactoring of harness 2019-10-17 14:11:54 -07:00
Yann Collet
bfd829f254 minor: DIFF determination 
use gdiff on SunOS
 2019-10-17 14:03:20 -07:00
Yann Collet
1a18f1484f force compression during tests 
to erase potentially remaining artifacts from previous runs
 2019-10-17 13:15:56 -07:00
Yann Collet
8e715d57c5 Merge branch 'dev' of github.com:facebook/zstd into dev 2019-10-17 10:50:58 -07:00
Yann Collet
303261f659 ignore build artifact from educational decoder test 2019-10-17 10:50:39 -07:00
Yann Collet
6446ffb277
Merge pull request #1827 from facebook/dm_Dct 
updated erroneous comments using ZSTD_dm_*
 2019-10-17 10:30:58 -07:00
Yann Collet
25ce9ac401 removed UNALIGNED() macro from educational decoder 
as this name collides with existing macro in mingw64+clang9.
 2019-10-16 17:27:03 -07:00
Yann Collet
edca7970ac
Merge pull request #1828 from bimbashrestha/education_decoder_check 
Removing unnecessary check on education decoder
 2019-10-16 17:21:47 -07:00
Bimba Shrestha
83749411a6 Removing unnecessary check from decode side 2019-10-16 16:26:46 -07:00
Yann Collet
6323966e53 updated erroneous comments using ZSTD_dm_* 
instead of the current ZSTD_dct_*,
reported by @nigeltao (#1822)
 2019-10-16 16:14:04 -07:00
Yann Collet
2d5201b0ab removed wildcopy8() 
which is no longer used,
noticed by @davidbolvansky
 2019-10-16 14:51:33 -07:00
Yann Collet
ad2a2785f7 bump version number to v1.4.4 
so that future reports on `dev` branch use this number instead
 2019-09-24 15:15:33 -07:00
Yann Collet
b9b9a1c8e9 fix education decoder test 
when `zstd` in not installed on local system
by allowing `ZSTD` variable to hold a custom location for the binary
 2019-09-10 09:36:02 -07:00
Yann Collet
a3815d233c fix minor compilation condition 
harness.c is not designed to pass  -Wdeclaration-after-statement
 2019-09-06 16:51:16 -07:00
Yann Collet
2b0a271ed2 fix eductional decoder 
fix #1774
also :
- fix minor compilation warnings
- make sure the `test` is run during CI tests
 2019-09-06 14:30:13 -07:00
Yann Collet
97bb38635c number instead of nb 
suggested by @terrelln
 2019-08-17 08:04:42 +02:00
Yann Collet
1e07eb4d5c clarifications on the meaning of field Block_Size 
following comments from Intel's Smita Kumar.
 2019-08-16 15:15:25 +02:00
Yann Collet
01b2331ad1 bumped version number 
to v1.4.3
 2019-08-05 17:17:16 +02:00
Yann Collet
0b0b83e8f3 fix test 122 
it's an unsupported scenario.
 2019-08-03 16:51:26 +02:00
W. Felix Handte
9cb9b1c9a5 Update Manual 2019-07-24 18:21:11 -04:00
W. Felix Handte
a2861d75eb [doc] Bump Format Spec Version 2019-07-17 18:55:45 -04:00
W. Felix Handte
c05b270edc [doc] Remove Limitation that Compressed Block is Smaller than Uncompressed Content 
This changes the size limit on compressed blocks to match those of the other
block types: they may not be larger than the `Block_Maximum_Decompressed_Size`,
which is the smaller of the `Window_Size` and 128 KB, removing the additional
restriction that had been placed on `Compressed_Block`s, that they be smaller
than the decompressed content they represent.

Several things motivate removing this restriction. On the one hand, this
restriction is not useful for decoders: the decoder must nonetheless be
prepared to accept compressed blocks that are the full
`Block_Maximum_Decompressed_Size`. And on the other, this bound is actually
artificially limiting. If block representations were entirely independent,
a compressed representation of a block that is larger than the contents of the
block would be ipso facto useless, and it would be strictly better to send it
as an `Raw_Block`. However, blocks are not entirely independent, and it can
make sense to pay the cost of encoding custom entropy tables in a block, even
if that pushes that block size over the size of the data it represents,
because those tables can be re-used by subsequent blocks.

Finally, as far as I can tell, this restriction in the spec is not currently
enforced in any Zstandard implementation, nor has it ever been. This change
should therefore be safe to make.
 2019-07-17 18:55:45 -04:00
Yann Collet
b8ec4b0fd6 updated version number (to v1.4.1) 
also : added doc on context re-use, as suggested by @scherepanov at #1676
 2019-07-09 11:43:59 -07:00
Ephraim Park
9007701670 Adding targetCBlockSize param 2019-07-03 15:41:52 -07:00
Yann Collet
b3af1873a0 better title formatting for html documentation 
must pay attention to /** and /*! patterns.
 2019-06-04 10:35:40 -07:00
Yann Collet
b5c98fbfd0 Added comments on I/O buffer sizes for streaming 
It seems this is still a confusing topic,
as in https://github.com/klauspost/compress/issues/109 .
 2019-06-04 10:26:16 -07:00
W. Felix Handte
ff0be17cf7 Build Manual 2019-05-24 16:55:43 -04:00
Josh Soref
a880ca239b Spelling (#1582) 
* spelling: accidentally

* spelling: across

* spelling: additionally

* spelling: addresses

* spelling: appropriate

* spelling: assumed

* spelling: available

* spelling: builder

* spelling: capacity

* spelling: compiler

* spelling: compressibility

* spelling: compressor

* spelling: compression

* spelling: contract

* spelling: convenience

* spelling: decompress

* spelling: description

* spelling: deflate

* spelling: deterministically

* spelling: dictionary

* spelling: display

* spelling: eliminate

* spelling: preemptively

* spelling: exclude

* spelling: failure

* spelling: independence

* spelling: independent

* spelling: intentionally

* spelling: matching

* spelling: maximum

* spelling: meaning

* spelling: mishandled

* spelling: memory

* spelling: occasionally

* spelling: occurrence

* spelling: official

* spelling: offsets

* spelling: original

* spelling: output

* spelling: overflow

* spelling: overridden

* spelling: parameter

* spelling: performance

* spelling: probability

* spelling: receives

* spelling: redundant

* spelling: recompression

* spelling: resources

* spelling: sanity

* spelling: segment

* spelling: series

* spelling: specified

* spelling: specify

* spelling: subtracted

* spelling: successful

* spelling: return

* spelling: translation

* spelling: update

* spelling: unrelated

* spelling: useless

* spelling: variables

* spelling: variety

* spelling: verbatim

* spelling: verification

* spelling: visited

* spelling: warming

* spelling: workers

* spelling: with
 2019-04-12 11:18:11 -07:00
Yann Collet
59a7116cc2 benchfn dependencies reduced to only timefn 
benchfn used to rely on mem.h, and util,
which in turn relied on platform.h.
Using benchfn outside of zstd required to bring all these dependencies.

Now, dependency is reduced to timefn only.
This required to create a separate timefn from util,
and rewrite benchfn and timefn to no longer need mem.h.

Separating timefn from util has a wide effect accross the code base,
as usage of time functions is widespread.
A lot of build scripts had to be updated to also include timefn.
 2019-04-10 12:37:03 -07:00
Peter (Stig) Edwards
2ff9249810
-Wformat-security not needed with -Wformat=2 2019-02-01 09:27:22 +00:00
Yann Collet
a1394399b4 fixed minor conversion warnings in examples/ 2019-01-19 23:38:20 -08:00
Yann Collet
34f01e600f fixed multiple conversions 
from 64-bit to 32-bit
 2018-12-13 14:02:22 -08:00
Yann Collet
f2f86d369b Merge branch 'btultra2' into ovlog_def 2018-12-12 20:58:14 -08:00
Yann Collet
9792acda3b Merge branch 'dev' into btultra2 2018-12-12 20:18:27 -08:00
Yann Collet
9b784dec7f changed parameter name to ZSTD_c_overlapLog 
from overlapSizeLog.

Reasoning :
`overlapLog` is already used everwhere, in the code, command line and documentation.
`ZSTD_c_overlapSizeLog` feels unnecessarily different.
 2018-12-11 16:55:33 -08:00
Yann Collet
52b94f902c add clarification for ZSTD_CCtx_setPledgedSrcSize() 
as requested in #1391
 2018-12-11 12:08:21 -08:00
Yann Collet
be9e561da4 changed ZSTD_c_compressionStrategy into ZSTD_c_strategy 
also : fixed paramgrill, and limit conditions
 2018-12-06 15:00:52 -08:00