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v1.4.4
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Author SHA1 Message Date
Yann Collet d770a2a89f fixed zlibwrapper build script 2019-10-31 10:47:06 -07:00
Yann Collet ae3d35dc8e updated CHANGELOG for v1.4.4 2019-10-30 12:16:45 -07:00
Yann Collet 6d5e0f1c9f Merge branch 'dev' of github.com:facebook/zstd into dev 2019-10-28 12:57:23 -07:00
Yann Collet faddd2aa1d updated CHANGELOG for v1.4.4 2019-10-28 12:57:05 -07:00
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 42a22af78b fix zlibWrapper for Visual Studio 
As per https://github.com/facebook/zstd/issues/1800#issuecomment-545945050,
Visual does not support `ssize_t` type,
which is an issue for `gzread.c`.

Added a work around, suggested by @bluenlive

Note : I have not been able to confirm the problem,
so this is a blind fix.
This seems safe outside of Visual, since it is gated by _MSC_VER macro.
 2019-10-24 15:19:05 -07:00
Yann Collet 63e435dda1 improve deprecation warning macro 
fix #1488

although, curiously enough, I was never able to reproduce the issue
(according to the bug report, it should be present while using gcc 4.8).
 2019-10-23 11:59:32 -07:00
Yann Collet f966cd080a added documentation on DYNAMIC_BMI2 build macro 2019-10-22 17:43:09 -07:00
Yann Collet 5d5c895b18 fix initCStream_advanced() for fast strategies 
Compression ratio of fast strategies (levels 1 & 2)
was seriously reduced, due to accidental disabling of Literals compression.

Credit to @QrczakMK, which perfectly described the issue, and implementation details,
making the fix straightforward.

Example : initCStream with level 1 on synthetic sample P50 :
Before : 5,273,976 bytes
After  : 3,154,678 bytes
ZSTD_compress (for comparison) : 3,154,550

Fix #1787.

To follow : refactor the test which was supposed to catch this issue (and failed)
 2019-10-22 15:01:38 -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 989e0f0cee Added --output-dir-flat= 
which is a preferred construction when applicable.

Also, added --output-dir-flat into man page.
 2019-10-21 14:39:18 -07:00
Yann Collet bad35bd307 turned off zlib tests during msan 
since the local zlib library is not msan-instrumented
 2019-10-21 12:55:39 -07:00
Yann Collet 632e07747c minor refactor of FIO_compressGzFrame() 
mostly narrowing variables lifetime and mutability.
 2019-10-21 12:14:59 -07:00
Yann Collet ff7bd16c0a clarifications for the FSE decoding table 
requested in #1782
 2019-10-18 17:48:12 -07:00
Yann Collet ed65210c9b Merge branch 'dev' of github.com:facebook/zstd into dev 2019-10-18 17:23:39 -07:00
Yann Collet ca73c218be added mode documentation on ZSTD_CLEVEL 
providing range restriction [1-19] explicitly
partially answering #1829
 2019-10-18 17:22:45 -07:00
Yann Collet 0492c57013 fixed visual defined test 2019-10-18 17:08:52 -07:00
Yann Collet f379637025 removed Visual warning 
for pointer casts
 2019-10-18 17:05:42 -07:00
Yann Collet 1bd6c15b6b fix function cast warning on Windows with gcc9 2019-10-18 15:45:57 -07:00
Yann Collet 58c59341d3 updated windows binary resources 2019-10-18 15:41:12 -07:00
Yann Collet 2ad75bb574 validated 'make test' for mingw environment 2019-10-18 15:37:07 -07:00
Yann Collet 85a016ed92 made make check faster 
for shorter feedback loop
 2019-10-18 15:21:50 -07:00
Yann Collet 0e154fc40e minor appveyor test script fix 2019-10-18 15:02:30 -07:00
Yann Collet 03ef7b73a7 attempt to run 'make check' tests on Appveyor 
for mingw builds
 2019-10-18 14:52:16 -07:00
Yann Collet 29e46ed0bd fix test on windows 
isDirectory() doesn't work on Windows
if directory name is followed by '/'
 2019-10-18 14:28:34 -07:00
Yann Collet ad86a5d0bc rewrite FIO_createFilename_fromOutDir() 2019-10-18 11:15:10 -07:00
Yann Collet caf40d0ae4 fix : no output file opened in test mode 
also : redistributed error code within fileio.c
for more precise diagnosis.
 2019-10-17 16:58:49 -07:00
Yann Collet 0a24d4ef18 removed regular file test on Windows 
since it does not work well on this platform
(tested with MinGW).

Note : could be an issue within UTIL_isRegularFile()
 2019-10-17 16:39:47 -07:00
Yann Collet 0ee360982d improved test mode -t 
The test mode do no longer open a file `/dev/null` nor write anything to output.

This is supposed to be more efficient than writing to `/dev/null`,
and more universal too : the previous method was failing on Windows.
 2019-10-17 16:09:53 -07:00
Yann Collet 1795133c45 refactored FIO_compressMultipleFilenames() prototype 
for consistency
 2019-10-17 15:32:03 -07:00
Yann Collet 7f86ae2867 fixed multiple implicit casts 2019-10-17 15:27:25 -07:00
Yann Collet ba7e2b6da7 tests: can override isTerminal with environment variable 2019-10-17 15:07:47 -07:00
Yann Collet 157479af0c fixed isSameFile() 2019-10-17 14:31:42 -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 a71256a2ee fix several cast 2019-10-17 11:01:20 -07:00
Yann Collet 000404311f fix incorrect dictName/FileName comparison on Windows 
inode identification does not seem to work on Windows,
even with on a msys2 posix layer.
 2019-10-17 10:56:14 -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 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 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 6309be677c minor comments & refactoring 2019-10-15 16:09:18 -07:00
Yann Collet e0d413d648 fixed init warning 2019-10-04 15:09:52 -07:00
Yann Collet cadff8cdc4 zlibwrapper : fixed flag-variable name 
release doesn't use specific std/debug flags
 2019-10-02 17:41:19 -07:00
Yann Collet c69ed0f8d7 updated tests for zlibwrapper C90 strict compatibility 2019-10-02 17:32:19 -07:00
Yann Collet 69c9401932 simplified Makefile 
and fixed a few c++-compat issues
 2019-09-26 15:01:29 -07:00
Yann Collet 0582b27cae added c++-compat build flag 
ensure code can be compiled "as is" in C++ mode

also : restructured flags so that they can be individually changed / disabled on command line
 2019-09-26 13:08:25 -07:00
Yann Collet cb18fffe65 enforce C90 compatibility for zlibWrapper 2019-09-24 17:50:58 -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 243200e5bf minor refactor of ZSTD_fast 
- reduced variables lifetime
- more accurate code comments
 2019-09-17 14:02:57 -07:00
Yann Collet e0fb7e1eaf ignore dictionary artifacts 2019-09-12 09:39:15 -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 64102f08da Merge branch 'dev' into decTest 2019-08-29 09:48:12 -07:00
Yann Collet e7ad20c9dc update test script 2019-08-28 13:46:18 -07:00
Yann Collet 4b3a8fe1c4 fix create_ script for sh 2019-08-28 13:23:48 -07:00
Yann Collet 8af941d2d7 Merge branch 'dev' into decTest 2019-08-28 12:17:29 -07:00
Yann Collet 416157df80 try to debug issues on CirrusCI 2019-08-27 16:38:21 -07:00
Yann Collet cd43f7d965 added single_file_decoder to contrib/ tests 2019-08-27 16:04:12 -07:00
Yann Collet f61e8a231f minor script renaming, for clarity 2019-08-27 16:01:39 -07:00
Yann Collet 517aeb89dc changed contrib project name for clarity 2019-08-27 15:50:47 -07:00
Yann Collet b12a5b9117 removed associated test 2019-08-27 14:52:16 -07:00
Yann Collet 5ed1b1e11d removed adaptive-compression 
the functionality is already integrated into `zstd` through `--adapt` command
 2019-08-27 14:47:40 -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 782bfb858a fixed very minor inefficiency (nbSeq==127) 
The nbSeq "short" format (1-byte)
is compatible with any value < 128.

However, the code would cautiously only accept values < 127.
This is not an error, because the general 2-bytes format
is compatible with small values < 128.
Hence the inefficiency never triggered any warning.

Spotted by Intel's Smita Kumar.
 2019-08-15 16:41:34 +02:00
Yann Collet 01b2331ad1 bumped version number 
to v1.4.3
 2019-08-05 17:17:16 +02:00
Yann Collet facbe8b2c2 factored the logic selecting lowest match index 
as suggested by @terrelln
 2019-08-05 15:18:43 +02:00
Yann Collet 0b0b83e8f3 fix test 122 
it's an unsupported scenario.
 2019-08-03 16:51:26 +02:00
Yann Collet efe8496755 minor test refactoring 
just for clarity, for the currently failing unit test
 2019-08-02 19:31:19 +02:00
Yann Collet 387e20d4f0 fixed minor conversion warning in datagen 2019-08-02 18:02:54 +02:00
Yann Collet 37f47e51a8 fixed datagen 
to produce same content on both 32 and 64-bit platforms
by removing floating from literal table determination.

also : added checksum trace in compression control test,
so that it's easier to determine if test fails
as a consequence of compressing a different sample.
 2019-08-02 17:34:53 +02:00
Yann Collet d1927f0b39 regenerate sample to compress 
to reduce chances of differences between 32 and 64-bit fuzzer tests
 2019-08-02 15:31:00 +02:00
Yann Collet 98e7c344cd fixed strategies btopt+ 2019-08-02 14:42:53 +02:00
Yann Collet b4257b04e7 fixed strategy btlazy2 2019-08-02 14:26:26 +02:00
Yann Collet 5cf1b24aca fixed strategies greedy, lazy & lazy2 
restore dictionary compression ratio
 2019-08-02 14:21:39 +02:00
Yann Collet 2115292616 minor : fixed ptr arithmetic 
invalid on void ptr
 2019-08-01 17:12:26 +02:00
Yann Collet 810a9cac08 added efficiency test 
to detect gross CR variations after a patch.

Tests normal and dictionary compression.
 2019-08-01 16:59:22 +02:00
Yann Collet 98692c2838 fixed compression ratio regression when dictionary-compressing medium-size inputs at levels 1-3 2019-08-01 15:58:17 +02:00
Yann Collet 1f16245e9e updated man page 2019-07-24 16:04:37 -07:00
Yann Collet eaeb7f00b5 updated the _extDict variant of double fast 2019-07-12 14:17:17 -07:00
Yann Collet e8a7f5d3ce double-fast: changed the trade-off for a smaller positive change 
same number of complementary insertions, just organized differently
(long at `ip-2`, short at `ip-1`).
 2019-07-12 11:34:53 -07:00
Yann Collet d1327738c2 updated double_fast complementary insertion 
in a way which is more favorable to compression ratio,
though very slightly slower (~-1%).

More details in the PR.
 2019-07-11 15:25:22 -07:00
Yann Collet 2387d574cb updated .gitignore 2019-07-09 14:54:48 -07:00
Yann Collet 34a1a37246 updated .gitignore rule 2019-07-09 14:44:22 -07:00
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
Yann Collet 621adde3b2 changed naming to ZSTD_indexTooCloseToMax() 
Also : minor speed optimization :
shortcut to ZSTD_reset_matchState() rather than the full reset process.
It still needs to be completed with ZSTD_continueCCtx() for proper initialization.

Also : changed position of LDM hash tables in the context,
so that the "regular" hash tables can be at a predictable position,
hence allowing the shortcut to ZSTD_reset_matchState() without complex conditions.
 2019-06-24 14:39:29 -07:00
Yann Collet 45c9fbd6d9 prefer memset() rather than reduceIndex() when close to index range limit 
by disabling continue mode when index is close to limit.
 2019-06-21 16:19:21 -07:00
Yann Collet 944e2e9e12 benchfn : added macro macro CONTROL() 
like assert() but cannot be disabled.
proper separation of user contract errors (CONTROL())
and invariant verification (assert()).
 2019-06-21 15:58:55 -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
Yann Collet 80d6ccea79 removed UINT32_MAX 
apparently not guaranteed on all platforms,
replaced by UINT_MAX.
 2019-05-31 17:27:07 -07:00
Yann Collet fce4df3ab7 fixed wrong assert in double_fast 2019-05-31 17:06:28 -07:00
Yann Collet a968099038 minor code cleaning for new index invalidation strategy 2019-05-31 16:52:37 -07:00
Yann Collet d605f482c7 make double_fast compatible with new index invalidation strategy 2019-05-31 16:50:04 -07:00