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Author SHA1 Message Date
daniellerozenblitandGitHub 1c818e3a0a Merge pull request #3302 from daniellerozenblit/optimal-huff-depth-speed 
Optimal huff depth speed improvements
 2023-01-03 12:51:51 -05:00
Danielle Rozenblit 87becc567d update regression results.csv 2023-01-03 08:41:40 -08:00
Danielle Rozenblit df714ddb0f implement suggestions 2023-01-03 07:20:21 -08:00
Yann ColletandGitHub 3248910432 Merge pull request #3248 from facebook/opt_comments1 
[easy] add a few comments to the optimal parser code base for improved clarity
 2022-12-28 18:03:57 -08:00
Yann Collet d07e72bb13 fixed incorrect assert 
commented Fweight instead
 2022-12-28 17:23:40 -08:00
Yann Collet 4a1a79a512 just add some comments to zstd_opt for improved clarity 2022-12-28 16:24:12 -08:00
Yann ColletandGitHub 9fbbd74871 Merge pull request #3400 from danlark1/dev 
Move deprecated annotation before static to allow C++ compilation for clang
 2022-12-28 15:50:26 -08:00
Yann ColletandGitHub bcbd395c1c Merge pull request #3395 from terrelln/2022-12-21-deprecated-test 
[tests] Remove deprecated function from longmatch.c test
 2022-12-28 15:49:50 -08:00
Yann Collet 00c85b28e7 update ZSTD_CCts_setCParams() inline documentation 
specify behavior when changing compression parameters during MT compression,
reported by @embg
 2022-12-28 15:08:18 -08:00
Yann ColletandGitHub 481a2e1010 Merge pull request #3403 from facebook/setCParams 
ZSTD_CCtx_setCParams
 2022-12-28 14:07:13 -08:00
Elliot GorokhovskyandGitHub 2a402626dd External matchfinder API (#3333) 
* First building commit with sample matchfinder

* Set up ZSTD_externalMatchCtx struct

* move seqBuffer to ZSTD_Sequence*

* support non-contiguous dictionary

* clean up parens

* add clearExternalMatchfinder, handle allocation errors

* Add useExternalMatchfinder cParam

* validate useExternalMatchfinder cParam

* Disable LDM + external matchfinder

* Check for static CCtx

* Validate mState and mStateDestructor

* Improve LDM check to cover both branches

* Error API with optional fallback

* handle RLE properly for external matchfinder

* nit

* Move to a CDict-like model for resource ownership

* Add hidden useExternalMatchfinder bool to CCtx_params_s

* Eliminate malloc, move to cwksp allocation

* Handle CCtx reset properly

* Ensure seqStore has enough space for external sequences

* fix capitalization

* Add DEBUGLOG statements

* Add compressionLevel param to matchfinder API

* fix c99 issues and add a param combination error code

* nits

* Test external matchfinder API

* C90 compat for simpleExternalMatchFinder

* Fix some @nocommits and an ASAN bug

* nit

* nit

* nits

* forward declare copySequencesToSeqStore functions in zstd_compress_internal.h

* nit

* nit

* nits

* Update copyright headers

* Fix CMake zstreamtest build

* Fix copyright headers (again)

* typo

* Add externalMatchfinder demo program to make contrib

* Reduce memory consumption for small blockSize

* ZSTD_postProcessExternalMatchFinderResult nits

* test sum(matchlen) + sum(litlen) == srcSize in debug builds

* refExternalMatchFinder -> registerExternalMatchFinder

* C90 nit

* zstreamtest nits

* contrib nits

* contrib nits

* allow block splitter + external matchfinder, refactor

* add windowSize param

* add contrib/externalMatchfinder/README.md

* docs

* go back to old RLE heuristic because of the first block issue

* fix initializer element is not a constant expression

* ref contrib from zstd.h

* extremely pedantic compiler warning fix, meson fix, typo fix

* Additional docs on API limitations

* minor nits

* Refactor maxNbSeq calculation into a helper function

* Fix copyright
 2022-12-28 16:45:14 -05:00
Yann Collet b17743e41b Signal parameter change during MT compression 2022-12-28 13:14:58 -08:00
Yann Collet 89342d1e07 New xp library symbol : ZSTD_CCtx_setCParams() 
Inspired by #3395,
offer a new capability to set all parameters defined in a ZSTD_compressionParameters structure
with a single symbol invocation
to improve user code brevity.
 2022-12-27 23:49:22 -08:00
Yann ColletandGitHub 90597d78ea Merge pull request #3394 from terrelln/issue-3010 
[cli-tests] Test file stat read/write
 2022-12-27 16:20:05 -08:00
dependabot[bot]andGitHub 1f72dca0ff Bump ossf/scorecard-action from 2.1.0 to 2.1.2 
Bumps [ossf/scorecard-action](https://github.com/ossf/scorecard-action) from 2.1.0 to 2.1.2.
- [Release notes](https://github.com/ossf/scorecard-action/releases)
- [Changelog](https://github.com/ossf/scorecard-action/blob/main/RELEASE.md)
- [Commits](https://github.com/ossf/scorecard-action/compare/937ffa90d79c7d720498178154ad4c7ba1e4ad8c...e38b1902ae4f44df626f11ba0734b14fb91f8f86)

---
updated-dependencies:
- dependency-name: ossf/scorecard-action
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
 2022-12-26 05:08:53 +00:00
Yann Collet 6640377783 cmake build: fix nit 
reported by @jaimeMF in https://github.com/facebook/zstd/pull/3392#discussion_r1056643794
 2022-12-23 14:18:11 -08:00
Daniel KuteninandGitHub 48f4aa7307 Move deprecated annotation before static to allow C++ compilation for clang 
This fixes last 2 instances of https://github.com/facebook/zstd/issues/3250
 2022-12-23 12:07:31 +00:00
Yann ColletandGitHub 089b2797e3 Merge pull request #3398 from facebook/fix3316 
spec update : require minimum nb of literals for 4-streams mode
 2022-12-22 16:57:05 -08:00
Yann Collet 6a9c525903 spec update : require minimum nb of literals for 4-streams mode 
Reported by @shulib :
the specification for 4-streams mode
doesn't work when the amount of literals to compress is 5 bytes.
Extending it, it also doesn't work for sizes 1 or 2.

This patch updates the specification and the implementation
to require a minimum of 6 literals to trigger or accept the 4-streams mode.

The impact is expected to be a no-op :
the 4-streams mode is never triggered for such small quantity of literals anyway,
since it would be wasteful (it costs ~7.3 bytes more than single-stream mode).
An informal lower limit is set at ~256 bytes,
so the technical minimum is very far from this limit.

This is just meant for completeness of the specification.
 2022-12-22 16:14:34 -08:00
Yann ColletandGitHub 8209bfc4f3 Merge pull request #3399 from facebook/fix2577 
Support decompression of compressed blocks of size ZSTD_BLOCKSIZE_MAX
 2022-12-22 14:05:36 -08:00
Yann Collet ea2895cef4 Support decompression of compressed blocks of size ZSTD_BLOCKSIZE_MAX exactly 2022-12-22 12:40:27 -08:00
Felix HandteandGitHub f5ea3a196f Merge pull request #3397 from felixhandte/man-page-tweaks 
Man Page Tweaks, Edits, Formatting Fixes
 2022-12-22 14:49:59 -05:00
W. Felix Handte 11aba9b316 make man 2022-12-22 14:13:24 -05:00
W. Felix Handte 382026f096 Man Page Tweaks, Edits, Formatting Fixes 
This started as an application of the edits suggested in #3201 and expanded
from there.
 2022-12-22 14:13:17 -05:00
Nick Terrell 7fe7a166c2 [cli-tests] Add tests that use --trace-file-stat 
Basic tests for (de)compressing in the following modes:
* file to file
* file to stdout
* stdin to file
* stdin to stdout

These are basic tests, and aren't testing more advanced scenarios, but
it adds the groundwork for more complex tests as needed.

Fixes #3010.
 2022-12-21 18:32:12 -08:00
Nick Terrell 4b40e405d3 [tests] Remove deprecated function from longmatch.c test 
Thanks to @eli-schwartz for pointing it out!

We should maybe consider adding a helper function for applying
`ZSTD_parameters` and `ZSTD_compressionParameters` to a context.
That would aid the transition to the new API in situations like this.
 2022-12-21 17:52:10 -08:00
Nick TerrellandNick Terrell 40a7188130 Fix make clangbuild & add CI 
Fix the errors for:
* `-Wdocumentation`
* `-Wconversion` except `-Wsign-conversion`
 2022-12-21 17:31:04 -08:00
Nick TerrellandNick Terrell 31a703ec13 [cmake] Add noexecstack to compiler/linker flags 2022-12-21 17:30:14 -08:00
Nick Terrell 7df6e25b85 [cli-tests] Add --set-exact-output to update the expected output 
`./run.py --set-exact-output` will update `stdout.expect` and
`stderr.expect` to match the expected output. This doesn't apply to
outputs which use `.glob` or `.ignore`.
 2022-12-21 17:21:09 -08:00
Nick Terrell b6e8112261 [util] Add traces enabled by --trace-file-stat 
Print traces to stderr when --trace-file-stat is passed.
We trace all functions that read and write file metadata.
 2022-12-21 17:19:34 -08:00
Yann ColletandGitHub 7607b96ed9 Merge pull request #3385 from jonpalmisc/improve_help 
Improve help/usage (`-h`, `-H`) formatting
 2022-12-21 10:56:09 -08:00
Felix HandteandGitHub 0694f1435d Merge pull request #3386 from felixhandte/pin-other-action-commit-hashes 
Pin Remaining Action Dependencies (Except OSS-Fuzz)
 2022-12-21 11:24:23 -05:00
Jon Palmisciano 125bcde17c Update tests to expect new CLI help output 2022-12-20 20:13:00 -05:00
Jon Palmisciano 9c93dd71cd Clean up welcome message 2022-12-20 20:13:00 -05:00
Jon Palmisciano 678335c4f3 Rewrite help output to improve readability 2022-12-20 20:12:59 -05:00
W. Felix Handte 150aa23ef4 Pin Remaining Action Dependencies (Except OSS-Fuzz) 
The one that isn't pinned is the OSS-Fuzz builder and runner. They don't
offer tagged releases. I could pin to the current master commit, but I'm not
sure how desirable that is.
 2022-12-20 17:10:01 -05:00
Felix HandteandGitHub 0790e86c56 Merge pull request #3384 from felixhandte/pin-checkout-action-commit-hash 
Pin actions/checkout Dependency to Specific Commit Hash
 2022-12-20 16:08:03 -05:00
Nick TerrellandNick Terrell 651a381060 [build][cmake] Fix cmake with custom assembler 
Tell CMake to explicitly compile our assembly as C code, because we
require it is compiled by a C compiler, and it is only enabled for
clang/gcc.

Fixes #3193.
 2022-12-20 13:02:21 -08:00
Danielle Rozenblit c26f348dc8 fix CI errors 2022-12-20 12:43:46 -08:00
Danielle Rozenblit 2def93bf10 Merge branch 'optimal-huff-depth-speed' of github.com:daniellerozenblit/zstd into optimal-huff-depth-speed 2022-12-20 12:28:07 -08:00
Danielle Rozenblit 482689b995 huf log speed optimization: unidirectional scan of logs + break when regressing 2022-12-20 12:27:38 -08:00
W. Felix Handte e3f2c8b11c Pin actions/checkout Dependency to Specific Commit Hash 
It's a bit silly, because if we can't trust GitHub, what are we doing here?
But OSSF complains about it, so let's fix it.
 2022-12-20 14:53:12 -05:00
Felix HandteandGitHub ea199876e2 Merge pull request #3378 from facebook/dependabot/github_actions/github/codeql-action-2.1.37 
Bump github/codeql-action from 1.0.26 to 2.1.37
 2022-12-20 14:17:33 -05:00
Felix HandteandGitHub 5f0543a508 Merge pull request #3377 from facebook/dependabot/github_actions/ossf/scorecard-action-2.1.0 
Bump ossf/scorecard-action from 2.0.6 to 2.1.0
 2022-12-20 14:16:10 -05:00
Felix HandteandGitHub 3a7e2eec21 Merge pull request #3340 from facebook/dependabot/github_actions/actions/upload-artifact-3 
Bump actions/upload-artifact from 1 to 3
 2022-12-20 14:15:43 -05:00
Nick TerrellandNick Terrell e4018c4e7f [docs] Clarify dictionary loading documentation 
Reinforce that loading a new dictionary clears the current dictionary.
Except for the multiple-ddict mode.
 2022-12-20 11:10:49 -08:00
Felix HandteandGitHub f302ad8811 Merge pull request #3173 from felixhandte/update-copyright-company 
Update Copyright Comments
 2022-12-20 13:51:01 -05:00
W. Felix Handte 5d693cc38c Coalesce Almost All Copyright Notices to Standard Phrasing 
```
for f in $(find . \( -path ./.git -o -path ./tests/fuzz/corpora -o -path ./tests/regression/data-cache -o -path ./tests/regression/cache \) -prune -o -type f); do sed -i '/Copyright .* \(Yann Collet\)\|\(Meta Platforms\)/ s/Copyright .*/Copyright (c) Meta Platforms, Inc. and affiliates./' $f; done

git checkout HEAD -- build/VS2010/libzstd-dll/libzstd-dll.rc build/VS2010/zstd/zstd.rc tests/test-license.py contrib/linux-kernel/test/include/linux/xxhash.h examples/streaming_compression_thread_pool.c lib/legacy/zstd_v0*.c lib/legacy/zstd_v0*.h
nano ./programs/windres/zstd.rc
nano ./build/VS2010/zstd/zstd.rc
nano ./build/VS2010/libzstd-dll/libzstd-dll.rc
```
 2022-12-20 12:52:34 -05:00
W. Felix Handte 7f12f24cf4 Rewrite Copyright Date Ranges from -present to -2022 
Apparently it's better. Somehow.

```
for f in $(find . \( -path ./.git -o -path ./tests/fuzz/corpora -o -path ./tests/regression/data-cache -o -path ./tests/regression/cache \) -prune -o -type f); do echo $f; sed -i 's/\-present/-2022/' $f; done

g co HEAD -- build/meson/
```
 2022-12-20 12:44:56 -05:00
W. Felix Handte 4c999cf968 Update test-license.py 2022-12-20 12:43:16 -05:00