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Author SHA1 Message Date
Yann Collet 31d48e9ffa fixing minor formatting issue in 32-bit mode with logs enabled 2024-10-23 11:50:56 -07:00
Yann Collet 76ad1d6903 fixed VS2010 solution 2024-10-23 11:50:56 -07:00
Yann Collet cdddcaaec9 new Makefile target mesonbuild 
for easier local testing
 2024-10-23 11:50:56 -07:00
Yann Collet 6939235f01 fixed meson build 2024-10-23 11:50:56 -07:00
Yann Collet 80a912dec1 fixed zstreamtest 2024-10-23 11:50:56 -07:00
Yann Collet 6dc52122e6 fixed c90 comment style 2024-10-23 11:50:56 -07:00
Yann Collet 20c3d176cd fix assert 2024-10-23 11:50:56 -07:00
Yann Collet 0d4b520657 only split full blocks 
short term simplification
 2024-10-23 11:50:56 -07:00
Yann Collet dd38c677eb fixed single-library build 2024-10-23 11:50:56 -07:00
Yann Collet 8b3887f579 fixed kernel build 2024-10-23 11:50:56 -07:00
Yann Collet f83ed087f6 fixed RLE detection test 2024-10-23 11:50:56 -07:00
Yann Collet 83a3402a92 fix overlap write scenario in presence of incompressible data 2024-10-23 11:50:56 -07:00
Yann Collet fa147cbb4d more ZSTD_memset() to apply 2024-10-23 11:50:56 -07:00
Yann Collet 6021b6663a minor C++-ism 
though I really wonder if this is a property worth maintaining.
 2024-10-23 11:50:56 -07:00
Yann Collet e2d7d08888 use ZSTD_memset() 
for better portability on Linux kernel
 2024-10-23 11:50:56 -07:00
Yann Collet 586ca96fec do not use new as variable name 2024-10-23 11:50:56 -07:00
Yann Collet 9e52789962 fixed strict C90 semantic 2024-10-23 11:50:56 -07:00
Yann Collet a5bce4ae84 XP: add a pre-splitter 
instead of ingesting only full blocks, make an analysis of data, and infer where to split.
 2024-10-23 11:50:56 -07:00
Yann Collet 41d870fbbf updated regression tests results 2024-10-17 11:06:26 -07:00
Yann Collet ff8e98bebe enable regression tests at pull request time 
was transferred from circleci,
but was only triggered on push into dev,
i.e. after pull request is merged.
 2024-10-17 09:45:16 -07:00
Yann Collet 47d4f5662d rewrite code in the manner suggested by @terrelln 2024-10-17 09:37:23 -07:00
Yann Collet 61d08b0e42 fix test 
a margin of 4 is insufficient to guarantee compression success.
 2024-10-17 09:37:23 -07:00
Yann Collet 6326775166 slightly improved compression ratio at levels 3 & 4 
The compression ratio benefits are small but consistent, i.e. always positive.
On `silesia.tar` corpus, this modification saves ~75 KB at level 3.
The measured speed cost is negligible, i.e. below noise level, between 0 and -1%.
 2024-10-17 09:37:23 -07:00
Yann Collet 730d2dce41 fix test 2024-10-15 18:44:40 -07:00
Yann Collet c2abfc5ba4 minor improvement to level 3 dictionary compression ratio 2024-10-15 17:58:33 -07:00
Yann Collet e63896eb58 small dictionary compression speed improvement 
not as good as small-blocks improvement,
but generally positive.
 2024-10-15 17:48:35 -07:00
Yann Collet e6740355e3 attempt parallel test running with -j 2024-10-11 18:01:28 -07:00
Yann Collet 6f2e29a234 measure if -O2 makes the test complete faster 2024-10-11 17:30:55 -07:00
Yann Collet 1024aa9252 attempt to make 32-bit tests faster 
this is the longest CI test, reaching ~40mn on last PR
 2024-10-11 16:24:25 -07:00
Yann Collet 8e5823b65c rename variable name 
findMatch -> matchFound
since it's a test, as opposed to an active search operation.
suggested by @terrelln
 2024-10-11 15:38:12 -07:00
Yann Collet 83de00316c fixed parameter ordering in dfast 
noticed by @terrelln
 2024-10-11 15:36:15 -07:00
Yann Collet 3b343dcfb1 refactor huffman prefix code paragraph 2024-10-07 17:15:07 -07:00
Yann Collet b84653fc83 fix dependency for nightly github actions tests 2024-10-03 15:10:16 -07:00
Yann Collet a8b86d024a refactor documentation of the FSE decoding table build process 2024-10-02 23:09:06 -07:00
Yann Collet de6cc98e07 fix incorrect pointer manipulation 
fix #4155
 2024-10-01 09:25:26 -07:00
Yann Collet 3d5d3f5630 removing nightly tests built on circleci 2024-09-30 21:38:29 -07:00
Yann Collet 039f404faa update documentation to specify that Dictionary can be used for benchmark 
fix #4139
 2024-09-25 16:56:01 -07:00
Yann Collet 7a48dc230c fix doc nit: ZDICT_DICTSIZE_MIN 
fix #4142
 2024-09-19 09:50:30 -07:00
Yann Collet 09cb37cbb1 Limit range of operations on Indexes in 32-bit mode 
and use unsigned type.
This reduce risks that an operation produces a negative number when crossing the 2 GB limit.
 2024-08-21 11:03:43 -07:00
Yann Collet 14b8d398fd fix c90 comment style 2024-08-06 12:47:30 -07:00
Yann Collet 89451cafbd formatString_u() can display numbers > 100 
fixes #4110
 2024-08-06 11:44:37 -07:00
Yann Collet cb784edf5d added android-ndk-build 2024-07-30 11:34:49 -07:00
Yann Collet 80170f6aad fix macos build 
weird: after replacing the UNAME line with an identical one,
it does work properly now(??).
Possibly a case of hidden special character?
 2024-06-18 20:24:00 -07:00
Yann Collet d7a84a683f added cygwin install test 2024-06-12 10:57:15 -07:00
Yann Collet 2acf90431a minor:doc: specify decompression behavior in presence of multiple concatenated frames 
directly at ZSTD_decompress() level.
 2024-06-03 18:30:23 -07:00
Yann Collet a86f5f3f33 update documentation of ZSTD_decompressStream() 
slightly more precise, by recommending to check the return value.
fix #4030
 2024-04-23 09:31:35 -07:00
Yann Collet ff7a151f2e update test name 2024-04-21 10:44:50 -07:00
Yann Collet a2f145f059 decompression errors always display the full origin filename 
instead of the truncated size-limited version.
 2024-04-01 11:49:21 -07:00
Yann Collet e0ee0fccf8 updated benchmarks for v1.5.6 2024-03-27 18:19:31 -07:00
Yann Collet ebf24b7b77 fix nodejs deprecation warning 
by updating msys2 action
 2024-03-27 16:10:15 -07:00
Yann Collet 273d1279ca try to silence some scorecard warnings 2024-03-21 13:25:48 -07:00
Yann Collet 6f1215b874 fix ZSTD_TARGETCBLOCKSIZE_MIN test 
when requested CBlockSize is too low,
bound it to the minimum
instead of returning an error.
 2024-03-18 14:10:08 -07:00
Yann Collet c5da438dc0 fix typo 2024-03-18 12:33:22 -07:00
Yann Collet 3d18d9a9ce updated API manual 2024-03-18 12:30:54 -07:00
Yann Collet 902c7ec1fe add doc on CCtx UB state 2024-03-18 12:30:35 -07:00
Yann Collet 5d82c2b57c add a paragraph on UB DCtx state after error 2024-03-18 12:17:41 -07:00
Yann Collet f5728da365 update targetCBlockSize documentation 2024-03-18 12:04:02 -07:00
Yann Collet 351498b932 update CHANGELOG for v1.5.6 2024-03-14 17:01:34 -07:00
Yann Collet 686e7e4b4b updated version to v1.5.6 2024-03-14 15:38:14 -07:00
Yann Collet 9cc3304614 add line number to debug traces 2024-03-14 12:11:11 -07:00
Yann Collet c8ab027227 reduce the amount of includes in "cover.h" 2024-03-13 11:29:28 -07:00
Yann Collet ff6713fd72 fix duplicated paragraph 
reported by @zougloub
 2024-03-12 13:09:10 -07:00
Yann Collet 5473b72a05 updated documentation 
following recommendations by @zougloub at #3698
 2024-03-12 12:27:33 -07:00
Yann Collet 83ec3d0164 no longer truncate file name in verbose mode 
fix #3702
 2024-03-12 11:27:42 -07:00
Yann Collet 37ff4f91eb removed golden-decompression/.gitignore 
replaced by an exclusion rule in tests/.gitignore
 2024-03-12 10:47:27 -07:00
Yann Collet 0ae98ba215 add same .gitignore rule in golden-decompression/ 
as requested by @embg
 2024-03-12 09:47:54 -07:00
Yann Collet b39c76765b Add the zeroSeq sample 
that should have been part of #3674
 2024-03-12 09:28:25 -07:00
Yann Collet 74e856a195 add tests inspired from #2927 
centered around -T# and --fast=# arguments
 2024-03-11 17:57:57 -07:00
Yann Collet f6039f3d5f cmake refactor: move HP-UX specific logic into its own function 
reduce visual clutter of corner case configuration.
 2024-03-11 16:22:13 -07:00
Yann Collet 1362699e87 minor man page clarification 2024-03-11 12:23:37 -07:00
Yann Collet fbd9e628ae added tests 2024-03-11 12:17:34 -07:00
Yann Collet c610a01d7d fix #3719 
only disable `--rm` at end of command line parsing,
so that `-c` only disables `--rm` if it's effectively selected,
and not if it's overriden by a later `-o FILE` command.
 2024-03-11 11:38:55 -07:00
Yann Collet eb5f7a7fa2 produced golden sample for the offset==0 decoder test 
is correctly detected as corrupted by new version,
and is accepted (changed into offset==1) by older version.

updated documentation accordingly, with an hexadecimal representation.
 2024-03-09 00:33:44 -08:00
Yann Collet d2f56ba442 update documentation 2024-03-08 15:55:30 -08:00
Yann Collet a9fb8d4c41 new method to deal with offset==0 
in this new method, when an `offset==0` is detected,
it's converted into (size_t)(-1), instead of 1.

The logic is that (size_t)(-1) is effectively an extremely large positive number,
which will not pass the offset distance test at next stage (`execSequence()`).
Checked the source code, and offset is always checked (as it should),
using a formula which is not vulnerable to arithmetic overflow:
```
RETURN_ERROR_IF(sequence.offset > (size_t)(oLitEnd - virtualStart),
```

The benefit is that such a case (offset==0) is always detected as corrupted data
as opposed to relying on the checksum to detect the error.
 2024-03-08 15:26:06 -08:00
Yann Collet aed172a8fe minor: fix incorrect debug level 2024-03-08 14:29:44 -08:00
Yann Collet ad590275b4 added RISC-V emulation tests on Github CI 2024-03-07 16:54:44 -08:00
Yann Collet 007cda88ca prevent XXH64 from being autovectorized by XXH512 by default 
backport fix https://github.com/Cyan4973/xxHash/pull/924 from libxxhash
 2024-03-07 16:43:13 -08:00
Yann Collet 2abe8d63e0 fix LLU->ULL 
LLU is a correct prefix according to C99 & C11 standards (but not C90).
However, older versions of Visual Studio do not work with it.
Replace by ULL, which doesn't have this issue.

Fixes https://github.com/facebook/zstd/issues/3647
 2024-03-04 00:16:01 -08:00
Yann Collet 4fb0a77314 update -V documentation 
to answer #3727 comment
 2024-03-03 23:24:40 -08:00
Yann Collet bb4f85db42 fix version of actions/checkout 2024-03-03 18:47:08 -08:00
Yann Collet 8d31e8ec42 sizeBlockSequences() also tracks uncompressed size 
and only defines a sub-block boundary when
it believes that it is compressible.

It's effectively an optimization,
avoiding a compression cycle to reach the same conclusion.
 2024-02-26 14:31:12 -08:00
Yann Collet d23b95d21d minor refactor for clarity 
since we can ensure that nbSubBlocks>0
 2024-02-26 14:06:34 -08:00
Yann Collet 86db60752d optimization: bail out faster in presence of incompressible data 2024-02-26 13:27:59 -08:00
Yann Collet ef82b214ad nit: comment indentation 
as reported by @terrelln
 2024-02-26 13:23:59 -08:00
Yann Collet aa8592c532 minor: reformulate nbSubBlocks assignment 2024-02-26 13:21:14 -08:00
Yann Collet e0412c2062 fix extraneous semicolon ';' 
as reported by @terrelln
 2024-02-26 12:26:54 -08:00
Yann Collet 1fafd0c4ae fix minor visual static analyzer warning 
it's a false positive,
but change the code nonetheless to make it more obvious to the static analyzer.
 2024-02-25 19:45:32 -08:00
Yann Collet 038a8a906b targetCBlockSize: modified splitting strategy to generate blocks of more regular size 
notably avoiding to feature a larger first block
 2024-02-25 17:39:29 -08:00
Yann Collet 4d2bf7f0f2 removed sprintf usage from zstdcli.c 
some static analyzers flag this standard C90 function as unsafe.
 2024-02-24 23:03:40 -08:00
Yann Collet f8372191f5 reduced minimum compressed block size 
with the intention to match the transport layer size,
such as Ethernet and 4G mobile networks.
 2024-02-24 01:59:16 -08:00
Yann Collet f77f634d41 update API documentation 2024-02-24 01:28:17 -08:00
Yann Collet 4b51526412 fix partial block uncompressed 2024-02-24 01:24:58 -08:00
Yann Collet 6719794379 fixed some regressionTests 
but not all
 2024-02-23 18:48:29 -08:00
Yann Collet 0591e7eea1 minor: fix overly cautious conversion warning 2024-02-23 16:05:09 -08:00
Yann Collet 3b40100058 fix long sequences (> 64 KB) 2024-02-23 15:35:12 -08:00
Yann Collet 6b11fc436c fix issue with incompressible sections 2024-02-23 14:53:56 -08:00
Yann Collet cc4530924b speed optimized version of targetCBlockSize 
note that the size of individual compressed blocks will vary more wildly with this modification.
But it seems good enough for a first test, and fix the speed regression issue.
Further refinements can be attempted later.
 2024-02-23 14:03:26 -08:00
Yann Collet 68a232c591 benchmark more can test targetCBlockSize 2024-02-23 13:13:03 -08:00
Yann Collet b34517a440 fix cmake build 2024-02-20 20:20:40 -08:00