AuroraMiddleware/zstd
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
3,145 Commits 1 Branch 0 Tags 27 MiB
fce21777bd
Commit Graph

1402 Commits

Author SHA1 Message Date
Nick Terrell
555e281637 Handle large input size in 32-bit mode correctly 2017-01-09 18:20:06 -08:00
Nick Terrell
3a1fefcf00 Simplify COVER parameters 2017-01-02 17:51:38 -08:00
Nick Terrell
96b39f65fa Add COVER dictionary builder 2017-01-02 13:22:51 -08:00
Yann Collet
6334b04d61 compile object files, for faster recompilation 2017-01-02 03:22:18 +01:00
Yann Collet
f1cb55192c fixed linux warnings 2017-01-02 01:11:55 +01:00
Yann Collet
0ec6a95ba1 minor fixes 2017-01-02 00:49:42 +01:00
Yann Collet
2ec635a162 use pthread_cond to send signals between threads 2017-01-01 17:31:33 +01:00
Nick Terrell
bb13387d7d Fix pool for threading.h 2016-12-31 19:10:47 -05:00
Nick Terrell
4204e03e77 Add threading.h condition variables 2016-12-31 19:10:29 -05:00
Yann Collet
3b9d434356 extended ZSTDMT code support for non-MT systems and WIN32 (preliminary) 2016-12-31 16:32:19 +01:00
Yann Collet
c8efc1c874 simplified Buffer Pool 2016-12-31 14:45:33 +01:00
Yann Collet
3b29dbd9e8 new zstdmt version using generic treadpool 2016-12-31 06:04:25 +01:00
Yann Collet
c6a6417458 bench correctly measures time for multi-threaded compression (posix only) 2016-12-31 03:31:26 +01:00
Yann Collet
f765a375a5 Merge pull request #504 from terrelln/thread-pool 
[zstdmt] Add thread pool
 2016-12-30 15:31:49 +01:00
Nick Terrell
e777a5be6b Add a thread pool for ZSTDMT and COVER 2016-12-29 23:39:44 -08:00
Yann Collet
e70912c72b Changed : input divided into roughly equal parts. 
Debug : can measure time waiting for mutexes to unlock.
 2016-12-29 01:24:01 +01:00
Yann Collet
6c0ed9483a compression threads use ZSTD_compressCCtx() 2016-12-28 17:08:28 +01:00
Yann Collet
8d7432914f Merge pull request #503 from inikep/dev11 
Dev11
 2016-12-28 16:50:39 +01:00
Yann Collet
ce9e1452fd protect buffer pool with a mutex 2016-12-28 15:31:19 +01:00
Przemyslaw Skibinski
75f3a3a335 changed default PREFIX and MANDIR 2016-12-28 12:32:41 +01:00
Yann Collet
3d93f2fce7 first zstdmt sketch 2016-12-27 07:19:36 +01:00
Yann Collet
39c105c605 Merge branch 'dev' of github.com:facebook/zstd into dev 2016-12-23 22:25:31 +01:00
Yann Collet
aca113f4f5 fixed ZSTD_sizeof_?Dict() 2016-12-23 22:25:03 +01:00
Yann Collet
c07d2e3a31 Merge pull request #499 from inikep/dev11 
improved *BSD and Solaris compatibility
 2016-12-23 21:32:03 +01:00
Przemyslaw Skibinski
63b0014b96 BSD: improved "make install" 2016-12-23 10:05:49 +01:00
Nick Terrell
1b5d4a7d53 ZDICT_finalizeDictionary() flipped comparison 2016-12-22 18:14:57 -08:00
Nick Terrell
bcbe77e994 ZDICT_finalizeDictionary() flipped comparison 
`ZDICT_finalizeDictionary()` had a flipped comparison.
I also allowed `dictBufferCapacity == dictContentSize`.
It might be the case that the user wants to fill the dictionary
completely up, and then let zstd take exactly the space it needs
for the entropy tables.
 2016-12-22 18:01:14 -08:00
Nick Terrell
78a0072d5a Fix failing test due to deprecation warning 2016-12-22 17:36:16 -08:00
Yann Collet
d76d1a9ef0 added ZDICT_finalizeDictionary() 2016-12-22 20:18:43 +01:00
Przemyslaw Skibinski
b999170311 Solaris: working "make -C lib install" 2016-12-22 20:14:37 +01:00
Yann Collet
ba75e9d8c3 fix : zlib wrapper compile in gnu90 mode 2016-12-21 19:57:18 +01:00
Yann Collet
0819abe3c1 added ZSTD_createDDict_byReference() body 2016-12-21 19:25:15 +01:00
Yann Collet
4e5eea61a8 added ZSTD_createDDict_byReference() 2016-12-21 16:44:35 +01:00
Yann Collet
8333106b8a Merge branch 'dev' of github.com:facebook/zstd into dev 2016-12-21 16:44:24 +01:00
Yann Collet
0d7e84899f Merge pull request #489 from inikep/v112 
improved detection of POSIX
 2016-12-21 16:42:46 +01:00
Yann Collet
1f57c2ed32 added : ZSTD_createCDict_byReference() 2016-12-21 16:20:11 +01:00
Przemyslaw Skibinski
2f6ccee6af platform.h: removed Compiler Options 2016-12-21 13:23:34 +01:00
Przemyslaw Skibinski
5736db219e fix basic types redefinition 2016-12-21 09:26:00 +01:00
Nick Terrell
8157a4c3cc Fix dictionary loading bug causing an MSAN failure 
Offset rep codes must be in the range `[1, dictSize)`.
Fix dictionary loading to reject `0` as a offset rep code.
 2016-12-20 10:47:52 -08:00
Przemyslaw Skibinski
f8046b8e72 Merge remote-tracking branch 'refs/remotes/facebook/dev' into v112 
# Conflicts:
#	appveyor.yml
 2016-12-19 08:20:26 +01:00
Yann Collet
d564faa3c6 fix : ZSTD_initCStream_srcSize() correctly set srcSize in frame header 2016-12-18 21:39:15 +01:00
Yann Collet
1496c3dc47 Fix : size estimation when some samples are very large 2016-12-18 11:58:23 +01:00
Yann Collet
d46ecb58a5 added dll compilation tests 2016-12-17 16:28:12 +01:00
Nick Terrell
8de46ab51a Export all API functions 2016-12-16 13:27:30 -08:00
Przemyslaw Skibinski
0a1caeef6d VS: fixed 32-bit DLL compilation 2016-12-15 12:12:46 +01:00
Przemyslaw Skibinski
4e10bd339d appveyor.yml: added tests of fullbench-dll fullbench-lib 2016-12-15 12:09:23 +01:00
Przemyslaw Skibinski
60f10aab6c introduced ZSTDLIB_VISIBILITY 2016-12-15 11:32:31 +01:00
Yann Collet
2b36b238d3 changed variable name to estimatedSrcSize, to emphasize it does not need to be exact 2016-12-13 17:59:55 +01:00
Yann Collet
e795c8a5f6 Added ZSTD_initCStream_srcSize(). 
Added relevant test cases in zstreamtest
 2016-12-13 17:00:14 +01:00
Yann Collet
5397a66b19 minor BMI version check 2016-12-13 15:21:06 +01:00
Yann Collet
35168679bd Merge pull request #478 from terrelln/wildcopy-ub 
Fix execSequence wildcopy undefined behavior
 2016-12-13 11:33:00 +01:00
Nick Terrell
064a143520 Fix execSequence wildcopy undefined behavior 
execSequence relied on pointer overflow to handle cases where
`sequence.matchLength < 8`.  Instead of passing an `size_t` to
wildcopy, pass a `ptrdiff_t`.
 2016-12-12 19:01:23 -08:00
Nick Terrell
e474aa55b4 Fix decompression buffer overrun 
Allows an adversary to write up to 3 bytes beyond the end of the buffer.
Occurs if the match overlaps the `extDict` and `currentPrefix`, and the
match length in the `currentPrefix` is less than `MINMATCH`, and
`op-(16-MINMATCH) >= oMatchEnd > op-16`.
 2016-12-12 18:05:30 -08:00
Yann Collet
c3a5c4bef8 introduced cycleLog 2016-12-12 00:47:30 +01:00
Yann Collet
c261f71f6a minor variation of rescale fix 2016-12-12 00:25:07 +01:00
Nick Terrell
3826207a70 Simplify segfault fix 
Take advantage of the fact that `chainLog <= windowLog`.
 2016-12-10 18:46:55 -08:00
Nick Terrell
0012332ce0 Fix compression segfault 
When the overflow protection kicks in, it makes sure that ip - ctx->base
isn't too large.  However, it didn't ensure that saved offsets are
still valid.  This change ensures that any valid offsets (<= windowLog)
are still representable after the update.

The bug would shop up on line 1056, when `offset_1 > current + 1`, which
causes an underflow.  This in turn, would cause a segfault on line 1063.

The input must necessarily be longer than 1 GB for this issue to occur.
Even then, it only occurs if one of the last 3 matches is larger than
the chain size and block size.
 2016-12-09 17:15:33 -08:00
Yann Collet
383b8088a3 minor lib build refactoring 2016-12-08 18:42:27 -08:00
Yann Collet
6e754fe76a fixed lib soname. 
example : simple_compression : size overflow check
 2016-12-08 18:26:56 -08:00
Przemyslaw Skibinski
7687913178 Merge remote-tracking branch 'refs/remotes/facebook/dev' into dev11 2016-12-08 10:42:42 +01:00
Yann Collet
426a9d4b71 changed : dll : only approved ZSTD symbols are now exposed. All other symbols remain internal. 2016-12-07 16:39:34 -08:00
Przemyslaw Skibinski
4da53219a0 zstd Manual updated to 1.1.2 2016-12-07 11:18:40 +01:00
Yann Collet
379908be3d fixed zstd.h for manual 2016-12-06 10:36:15 -08:00
Yann Collet
9dfd0af164 ZBUFF_ as a wrapper to ZSTD streaming API. 2016-12-06 17:16:41 +01:00
Yann Collet
825dffbc43 moved zbuff source files into lib/deprecated 2016-12-05 19:28:19 -08:00
Yann Collet
8f8e2b0b4a fixed initialization warning 2016-12-05 18:00:50 -08:00
Yann Collet
e7a41a5955 added : dictID retrieval functions. 
added : unit tests for dictID retrieval functions
 2016-12-05 16:21:06 -08:00
Yann Collet
9ffbeea875 API : changed : streaming decompression : implicit reset on starting new frames 2016-12-02 18:37:38 -08:00
Yann Collet
2238312c2f fix dict loading 2016-12-02 11:36:11 -08:00
Przemyslaw Skibinski
821bf1febc fixed Doxygen trailing comment 2016-12-02 16:13:41 +01:00
Yann Collet
b89af20353 reduced table sizes for HUF_readDTableX4 2016-12-01 18:24:59 -08:00
Yann Collet
a0d742b1e4 introduced HUF_buildCTable_wksp(), to reduce stack memory usage 2016-12-01 17:47:30 -08:00
Yann Collet
643d9a234b replaced usage of FSE_buildCTable by FSE_buildCTable_wksp, using less stack space in the process 2016-12-01 16:24:04 -08:00
Yann Collet
e928f7e16d introduced ext_wksp variants of count to reduce stack memory usage 2016-12-01 16:13:35 -08:00
Yann Collet
979cab412b fixed some minor visual silent cast warnings. 
introduced FSE_count_parallel_wksp().
 2016-11-30 18:10:38 -08:00
Yann Collet
5e00b848a8 FSE_compress_wksp() uses less stack space 2016-11-30 16:46:13 -08:00
Yann Collet
d79a9a00d9 Introduced FSE_compress_wksp() and FSE_buildCTable_wksp() to reduce stack memory usage 2016-11-30 15:52:20 -08:00
Yann Collet
766431909f introduced FSE_decompress_wksp(), to use less stack space 2016-11-30 12:36:45 -08:00
Yann Collet
95eb43be09 updated pkg config file 2016-11-30 11:06:58 -08:00
Yann Collet
42247705a3 Merge pull request #461 from obache/neatsrc/pkgconfig 
libzstd.pc.in: Change to use variables for libdir and includedir
 2016-11-30 20:03:42 +01:00
Yann Collet
ff504de391 minor decompression speed improvement 2016-11-29 17:42:46 -08:00
Yann Collet
25f46dcc0f minor const 2016-11-29 16:59:27 -08:00
Yann Collet
a56ac2815c restored normal decoder speed 2016-11-29 15:30:23 -08:00
Yann Collet
37870d7a66 fixed minor visual warning 2016-11-29 14:31:57 -08:00
Yann Collet
013a2b58ae Merge pull request #464 from terrelln/guards 
Fix ZSTD_STATIC_LINKING_ONLY with double include
 2016-11-29 23:06:10 +01:00
Yann Collet
167c494748 Merge branch 'dev' of github.com:facebook/zstd into dev 2016-11-29 14:05:15 -08:00
Yann Collet
4f5350f610 long matches support overflow 2016-11-29 13:12:24 -08:00
Nick Terrell
05c00f2ff7 Fix ZSTD_STATIC_LINKING_ONLY with double include 2016-11-29 11:54:39 -08:00
OBATA Akio
c53eea7c1a libzstd.pc.in: Change to use variables for libdir and includedir 2016-11-29 16:47:53 +09:00
Yann Collet
52e136ed3d long decoder compatible with round and separate buffers 2016-11-28 19:59:11 -08:00
Yann Collet
ce3527ca0c combined normal and long decoder 2016-11-28 18:38:52 -08:00
Yann Collet
8993bee997 restored normal mode 2016-11-28 16:11:30 -08:00
Yann Collet
764e70a4f3 added decodeSequencesLong 2016-11-28 15:50:16 -08:00
Yann Collet
73f88a66f1 added prefetch 2016-11-23 15:43:30 -08:00
Yann Collet
50524bf0da delayed decompression 2016-11-23 15:11:07 -08:00
Przemyslaw Skibinski
fc4193bda5 fixed g++ warnings 2016-11-23 18:17:18 +01:00
Przemyslaw Skibinski
9ca65af810 zstd_opt.h: improved price function 2016-11-23 17:22:54 +01:00
Przemyslaw Skibinski
ad3e94512c fixed warnings from static analyzer in zstd_opt.h 2016-11-21 20:22:12 +01:00
Przemyslaw Skibinski
eec700a3b7 exclude zbuff_compress.c and zbuff_decompress.c 2016-11-21 14:34:03 +01:00
Przemyslaw Skibinski
62d19a6f39 lib\README.md: added Using MinGW+MSYS to create DLL 2016-11-21 14:22:08 +01:00
Przemyslaw Skibinski
b85f767743 files to generate ZSTD Windows binary package 2016-11-21 14:10:55 +01:00
Przemyslaw Skibinski
8bb86e330b create DLL with Windows 2016-11-21 12:51:01 +01:00
Przemyslaw Skibinski
93a09eedf1 added libzstd.def 2016-11-21 12:33:27 +01:00
Przemyslaw Skibinski
5a17223691 Merge remote-tracking branch 'refs/remotes/facebook/dev' into dev11 2016-11-18 11:47:01 +01:00
Przemyslaw Skibinski
3d18088b38 updated windres 2016-11-17 18:04:41 +01:00
Yann Collet
0d761dbe95 Merge pull request #453 from inikep/dev11 
fullbench-dll
 2016-11-16 15:45:30 -08:00
Yann Collet
52afb3993e zbuff API now generates deprecation warnings 2016-11-16 08:50:54 -08:00
Przemyslaw Skibinski
179555c1d1 working fullbench-dll 2016-11-15 18:05:46 +01:00
Nick Terrell
4359d21ad7 Merge two memset() calls into one 2016-11-14 17:52:51 -08:00
Nick Terrell
24701de877 Fix uninitialized memory read 2016-11-14 13:57:05 -08:00
Yann Collet
8e4901eccd removed zbuff.h from include installation 2016-11-08 15:45:39 -08:00
Yann Collet
fd3be6bc97 bump version number to 1.1.2 2016-11-07 14:35:41 -08:00
Nick Terrell
dc904ad17b Fix bug in zstd v0.{5, 6} dictionary decompression 
Introduced by bb68062c59.
 2016-11-04 16:18:59 -07:00
Przemyslaw Skibinski
38b590ad69 Merge remote-tracking branch 'refs/remotes/facebook/dev' into dev11 
# Conflicts:
#	lib/Makefile
 2016-11-04 10:10:54 +01:00
Yann Collet
407a11f63e fixed Visual compatibility 2016-11-03 15:52:01 -07:00
Yann Collet
11812260d1 Merge pull request #439 from terrelln/dev 
ZSTD_compress_usingDict() specify dict == NULL
 2016-11-03 14:15:36 -07:00
Nick Terrell
c8a9ac312b Fix dynamic libzstd symlinks 2016-11-03 12:32:48 -07:00
Przemyslaw Skibinski
3a415594b1 fixed MinGW compilation 2016-11-03 12:59:20 +01:00
Yann Collet
7347869fb6 fixed make install 2016-11-02 22:28:37 -07:00
Nick Terrell
d82efd8a70 ZSTD_compress_usingDict() when dict gets loaded 
Specify that when `dict == NULL || dictSize < 8` no dictionary
gets loaded.
Also add some periods.
 2016-11-02 18:07:16 -07:00
Yann Collet
179b19776f fileio.c does no longer need ZSTD_LEGACY_SUPPORT, and does no longer depend on zstd_legacy.h 
Added : ZSTD_isFrame() in experimental section
 2016-11-02 17:30:49 -07:00
Yann Collet
f3f13211ae Fix #419 : no warning when setting custom LDFLAGS 2016-11-02 17:02:45 -07:00
Yann Collet
0a5a5fb7fd Fix #418 : printing selected segments in zdict debug mode can segfault with certain pathological patterns 2016-11-02 13:57:55 -07:00
Yann Collet
31e660e7aa more accurate default maximum window size 2016-10-29 03:56:45 -07:00
Yann Collet
2115724c22 Merge pull request #430 from terrelln/exec-sequences 
ZSTD_execSequence() accepts match in last 7 bytes
 2016-10-28 10:45:05 -07:00
Nick Terrell
10bfd0c0d5 Fix ZSTD_execSequence() performance regression 
Commit ae1cb3b3d0 caused the regression.
It is an instruction alignment issue, because if it is `U64 i` instead
of `U32 i`, the regression returns.  This patch fixes the regression
in gcc, but only gets some of the clang performance back.

Benchmarks:
Run on `silesia.tar`.  I only show levels 1-5 because the performance
regression was uniform across all levels.  I did one run on levels
1-19 and it looked good.

| Build | Level | Before | While | After |
|-------|-------|-------:|------:|------:|
| gcc   |     1 |  931.4 | 904.4 | 932.8 |
| gcc   |     2 |  849.1 | 822.6 | 851.2 |
| gcc   |     3 |  815.6 | 790.6 | 818.9 |
| gcc   |     4 |  794.1 | 770.7 | 798.0 |
| gcc   |     5 |  785.7 | 760.7 | 788.8 |
| clang |     1 |  705.5 | 683.2 | 693.8 |
| clang |     2 |  670.0 | 649.2 | 660.7 |
| clang |     3 |  659.6 | 639.8 | 651.4 |
| clang |     4 |  652.5 | 634.7 | 645.9 |
| clang |     5 |  646.9 | 625.5 | 637.7 |
 2016-10-27 16:19:57 -07:00
Yann Collet
ee5b725823 ZSTD_initCStream() optimization : do not allocate a CDict when no dictionary used 2016-10-27 14:20:55 -07:00
Nick Terrell
eb7873a048 ZSTD_execSequence() accepts match in last 7 bytes 
The zstd reference compressor will not emit a match in the last 7
bytes of a block.  The decompressor will also not accept a match
in the last 7 bytes.  This patch makes the decompressor accept a
match in the last 7 bytes.
 2016-10-25 21:24:15 -07:00
Yann Collet
335ad5d4d4 added ZSTD_initDStream_usingDDict() . 
slightly optimized ZSTD_initDStream() when no dictionary .
fixed ZSTD_sizeof_CStream() .
 2016-10-25 17:47:02 -07:00
Yann Collet
9516234e67 first sketch for ZSTD_initCStream_usingCDict() 2016-10-25 16:19:52 -07:00
Yann Collet
62d9a7ddfd Merge pull request #429 from inikep/btopt2 
Btopt2
 2016-10-25 14:48:43 -07:00
Przemyslaw Skibinski
5c5f01f3da added ZSTD_btopt2 strategy 2016-10-25 12:25:07 +02:00
Yann Collet
7b5948cca7 Merge pull request #426 from terrelln/fixes 
Fix various {A, M}SAN bugs
 2016-10-24 23:42:26 -07:00
Yann Collet
37d130031d updated comments on context re-use 2016-10-24 17:22:12 -07:00
Nick Terrell
b2c39a22b0 Fix compiler narrowing warning 2016-10-24 14:50:13 -07:00
Nick Terrell
f698ad6deb Merge remote-tracking branch 'upstream/dev' into fixes 
* upstream/dev:
  added doc\zstd_manual.html
  added contrib\gen_html
  zstd_compression_format.md moved to doc/
  Fix small bug in ZSTD_execSequence()
  improved ZSTD_compressBlock_opt_extDict_generic
  protect ZSTD_decodeFrameHeader() from invalid usage, as suggested by @spaskob
  zstd_opt.h: small improvement in compression ratio
  improved dicitonary segment merge
  use implicit rules to compile zstd_decompress.c
  detect early impossible decompression scenario in legacy decoder v0.5
  no repeat mode in legacy v0.5
  fixed invalid invocation of dictionary in legacy decoder v0.5
  fix edge case
  fix command line interpretation
  fixed minor corner case
  zstd.h: added the Introduction section
  fixed clang 3.5 warnings
  zstd.h: updated comments
 2016-10-24 13:10:13 -07:00
Yann Collet
4239a207dd Merge pull request #425 from inikep/dev11 
Doc
 2016-10-24 11:11:40 -07:00
Nick Terrell
f9c9af3c2e Reject dictionaries with incomplete entropy tables 
If a dictionary specifies that a symbol has probability zero in its
`matchLength`, `literalLength`, or `offset` FSE table, but the symbol
appears when compressing input, the compressor fails.

Ensure that dictionaries support all `matchLength`, and `literalLength`
codes.  They must also support all of the `offset` codes required to
represent every possible offset that can appear in the first block.
 2016-10-24 10:42:44 -07:00
Przemyslaw Skibinski
984b66cd72 added contrib\gen_html 2016-10-24 15:59:51 +02:00
Przemyslaw Skibinski
3ee94a7600 zstd_compression_format.md moved to doc/ 2016-10-24 15:58:07 +02:00
Yann Collet
97611611a3 Merge pull request #423 from terrelln/exec-seq-patch 
Fix small bug in ZSTD_execSequence()
 2016-10-21 17:02:06 -07:00
Nick Terrell
ae1cb3b3d0 Fix small bug in ZSTD_execSequence() 
`memmove(op, match, sequence.matchLength)` is not the desired behavior.
Overlap is allowed, and handled as if we did `*op++ = *match++`, which
is not how `memmove()` handles overlap.

Only triggered if both of the following conditions are met:
* The match spans extDict & currentPrefixSegment
* `oLitEnd <= oend_w < oLitEnd + length1 < oMatchEnd <= oend`.

These two conditions imply that the block is less than 15 bytes long.
This bug isn't triggered by the streaming API, because it allocates
enough space for the window size + the block size, so there cannot be
a match that is within 8 bytes of the end and overlaps with itself.
It cannot be triggered by the block decompression API because all of
the decompressed data is in the currentPrefixSegment.

Introduced by commit 7158584399
 2016-10-21 12:13:44 -07:00
Przemyslaw Skibinski
4732074a71 improved ZSTD_compressBlock_opt_extDict_generic 2016-10-21 11:19:00 +02:00
Yann Collet
da3bd8b6de protect ZSTD_decodeFrameHeader() from invalid usage, as suggested by @spaskob 2016-10-20 20:11:00 -07:00
Przemyslaw Skibinski
d365ae3497 zstd_opt.h: small improvement in compression ratio 2016-10-20 11:49:02 +02:00
Przemyslaw Skibinski
575ab00db7 Merge remote-tracking branch 'refs/remotes/facebook/dev' into dev11 2016-10-20 11:01:52 +02:00
Nick Terrell
d760529a05 Fix stack buffer overrun when weightTotal == 0 
If `weightTotal == 0`, then `BIT_highbit32(weightTotal)` is
undefined behavior in the case that it calls `__builtin_clz()`.
If `tableLog == HUF_TABLELOG_ABSOLUTEMAX` then we will access one
byte beyond the end of the buffer.
 2016-10-19 11:39:11 -07:00
Nick Terrell
bb68062c59 Unitialized memory read in ZSTD_decodeSeqHeaders() 
Caused by two things:
1. Not checking that `ip` is in range except for the first byte.
2. `ZSTDv0{5,6}_decodeLiteralsBlock()` could return a value larger than `srcSize`.
 2016-10-18 16:41:33 -07:00
Yann Collet
52c1bf93fe improved dicitonary segment merge 2016-10-18 16:34:58 -07:00
Nick Terrell
7b06ad7a05 Backport fix from commit 125d817 
This fixes a read of unitialized memory.
Full commit hash: 125d81774f.
 2016-10-18 14:52:34 -07:00
Nick Terrell
f45b157d95 Backport fix from commit 9e8b09a 
Fixes uninitialized memory reads.
Full commit hash: 9e8b09a7bd
 2016-10-18 14:22:49 -07:00
Yann Collet
f7906d5955 detect early impossible decompression scenario in legacy decoder v0.5 2016-10-18 13:48:32 -07:00
Yann Collet
9313c8d953 no repeat mode in legacy v0.5 2016-10-18 13:36:15 -07:00
Yann Collet
83d7bdee4b fixed invalid invocation of dictionary in legacy decoder v0.5 2016-10-18 12:25:43 -07:00
Yann Collet
197a55ee7b fix edge case 2016-10-18 11:27:52 -07:00
Nick Terrell
fd98087047 Fix stack buffer overflow in HUF_readCTable() 
If `w ==0` on line 153, then `CTable[n].nbBits == tableLog + 1`.
Then `nbPerRank[CTable[n].nbBits]` and `valPerRank[CTable[n].nbBits]`
are stack buffer overflows.
 2016-10-17 18:16:59 -07:00
Yann Collet
06573e17be fixed minor corner case 2016-10-17 17:28:28 -07:00
Nick Terrell
bfd943ace5 Fix buffer overrun in ZSTD_loadDictEntropyStats() 
The table log set by `FSE_readNCount()` was not checked in
`ZSTD_loadDictEntropyStats()`.  This caused `FSE_buildCTable()`
to stack/heap overflow in a few places.

The benchmarks look good, there is no obvious compression performance regression:

  > ./zstds/zstd.opt.0 -i10 -b1 -e10 ~/bench/silesia.tar
   1#silesia.tar       : 211988480 ->  73656930 (2.878), 271.6 MB/s , 716.8 MB/s
   2#silesia.tar       : 211988480 ->  70162842 (3.021), 204.8 MB/s , 671.1 MB/s
   3#silesia.tar       : 211988480 ->  66997986 (3.164), 156.8 MB/s , 658.6 MB/s
   4#silesia.tar       : 211988480 ->  66002591 (3.212), 136.4 MB/s , 665.3 MB/s
   5#silesia.tar       : 211988480 ->  65008480 (3.261),  98.9 MB/s , 647.0 MB/s
   6#silesia.tar       : 211988480 ->  62979643 (3.366),  65.2 MB/s , 670.4 MB/s
   7#silesia.tar       : 211988480 ->  61974560 (3.421),  44.9 MB/s , 688.2 MB/s
   8#silesia.tar       : 211988480 ->  61028308 (3.474),  32.4 MB/s , 711.9 MB/s
   9#silesia.tar       : 211988480 ->  60416751 (3.509),  21.1 MB/s , 718.1 MB/s
  10#silesia.tar       : 211988480 ->  60174239 (3.523),  22.2 MB/s , 721.8 MB/s

  > ./compress_zstds/zstd.opt.1 -i10 -b1 -e10 ~/bench/silesia.tar
   1#silesia.tar       : 211988480 ->  73656930 (2.878), 273.8 MB/s , 722.0 MB/s
   2#silesia.tar       : 211988480 ->  70162842 (3.021), 203.2 MB/s , 666.6 MB/s
   3#silesia.tar       : 211988480 ->  66997986 (3.164), 157.4 MB/s , 666.5 MB/s
   4#silesia.tar       : 211988480 ->  66002591 (3.212), 132.1 MB/s , 661.9 MB/s
   5#silesia.tar       : 211988480 ->  65008480 (3.261),  96.8 MB/s , 641.6 MB/s
   6#silesia.tar       : 211988480 ->  62979643 (3.366),  63.1 MB/s , 677.0 MB/s
   7#silesia.tar       : 211988480 ->  61974560 (3.421),  44.3 MB/s , 678.2 MB/s
   8#silesia.tar       : 211988480 ->  61028308 (3.474),  33.1 MB/s , 708.9 MB/s
   9#silesia.tar       : 211988480 ->  60416751 (3.509),  21.5 MB/s , 710.1 MB/s
  10#silesia.tar       : 211988480 ->  60174239 (3.523),  21.9 MB/s , 723.9 MB/s
 2016-10-17 16:55:52 -07:00
Nick Terrell
4db751668f Fix buffer overrun in ZSTD_loadEntropy() 
The table log set by `FSE_readNCount()` was not checked in
`ZSTD_loadEntropy()`.  This caused `FSE_buildDTable(dctx->MLTable, ...)`
to overwrite the beginning of `dctx->hufTable`.

The benchmarks look good, there is no obvious performance regression:

  > ./zstds/zstd.opt.0 -i10 -b1 -e5 ~/bench/silesia.tar
   1#silesia.tar       : 211988480 ->  73656930 (2.878), 268.2 MB/s , 701.0 MB/s
   2#silesia.tar       : 211988480 ->  70162842 (3.021), 199.5 MB/s , 666.9 MB/s
   3#silesia.tar       : 211988480 ->  66997986 (3.164), 154.9 MB/s , 655.6 MB/s
   4#silesia.tar       : 211988480 ->  66002591 (3.212), 128.9 MB/s , 648.4 MB/s
   5#silesia.tar       : 211988480 ->  65008480 (3.261),  98.4 MB/s , 633.4 MB/s

  > ./zstds/zstd.opt.2 -i10 -b1 -e5 ~/bench/silesia.tar
   1#silesia.tar       : 211988480 ->  73656930 (2.878), 266.1 MB/s , 703.7 MB/s
   2#silesia.tar       : 211988480 ->  70162842 (3.021), 199.0 MB/s , 666.6 MB/s
   3#silesia.tar       : 211988480 ->  66997986 (3.164), 156.2 MB/s , 656.2 MB/s
   4#silesia.tar       : 211988480 ->  66002591 (3.212), 133.2 MB/s , 647.4 MB/s
   5#silesia.tar       : 211988480 ->  65008480 (3.261),  96.3 MB/s , 633.3 MB/s
 2016-10-17 15:51:15 -07:00
Nick Terrell
ccfcc643da Check if dict is empty before reading first byte 2016-10-17 11:46:03 -07:00
Yann Collet
2b361cf2f1 minor opt 2016-10-14 16:09:07 -07:00
Yann Collet
7933434fdf Merge branch 'dev' of github.com:facebook/zstd into dev 2016-10-14 13:32:35 -07:00
Yann Collet
d4cda27b63 new command -M#, to limit memory usage during decompression (#403) 2016-10-14 13:32:20 -07:00
Nick Terrell
3b9cdf9220 Fix ubsan failures (pass NULL to memcpy) 2016-10-12 20:54:42 -07:00
Yann Collet
5d919e7ac3 added ZSTD_error_frameParameter_windowTooLarge (#403) 2016-10-12 17:29:24 -07:00
Yann Collet
e19111c42f make creates libzstd binaries (#415) 2016-10-12 11:09:36 -07:00
Yann Collet
8b70d012f0 fix cmake 2016-10-12 10:23:53 -07:00
Yann Collet
38fb0dc4cf Merge pull request #416 from terrelln/exec-sequence 
Fix ZSTD_execSequence() edge case
 2016-10-12 10:17:53 -07:00
Nick Terrell
7158584399 Fix ZSTD_execSequence() edge case 2016-10-12 10:05:26 -07:00
Yann Collet
f52cd03e73 bumped version number 2016-10-11 17:29:27 -07:00
Yann Collet
ef2357d0d3 created error_private.c, so that a single list of error strings get included 2016-10-11 17:24:50 -07:00
Yann Collet
14efab827b added zstd_errors.h to include installation 2016-10-11 16:51:29 -07:00
Yann Collet
a17fd7312a changed error_public.h into zstd_errors.h 2016-10-11 16:41:09 -07:00
Yann Collet
18b51b99c0 sync fse 2016-10-11 08:21:09 -07:00
inikep
2d2613399a zstd.h: added the Introduction section 2016-10-06 16:28:21 +02:00
inikep
ba1db376ac fixed clang 3.5 warnings 2016-10-06 14:22:48 +02:00
inikep
82057aa7ec zstd.h: updated comments 2016-10-06 13:23:52 +02:00
Yann Collet
df6797447f update dictionary builder warning comments 2016-09-27 15:14:32 +02:00
Yann Collet
47094ea66b added comment on filePos 2016-09-26 18:03:33 +02:00
Yann Collet
cf409a7e2a fixed : init*_advanced() followed by reset() with different pledgedSrcSiz 2016-09-26 16:41:05 +02:00
Yann Collet
2f2639438a zstreamtest can fuzztest pledgedSrcSize 2016-09-26 14:06:08 +02:00
Christophe Chevalier
dc245e91cb Changed to use ZSTDLIBv06_API and ZSTDLIBv07_API for DLL exports to fix warning 
- changed name to prevent collision with ZSTDLIB_API used by non-legacy dll exports
 2016-09-23 17:09:36 +02:00
Yann Collet
21412bb3f6 Merge branch 'dev' of github.com:Cyan4973/zstd into dev 2016-09-22 15:57:56 +02:00
Yann Collet
51f4d566c2 small decompression speed boost for very small data 2016-09-22 15:57:28 +02:00
Yann Collet
97b378a6f8 Streaming : dictionary compression on multiple files / segments can correctly provide srcSize into header (when provided) using pledgedSrcSize. 2016-09-21 17:20:19 +02:00
Yann Collet
993060e0f2 cli : better adaptation to small files 2016-09-21 16:46:08 +02:00
Yann Collet
1eb2fdc74f bumped version number 2016-09-18 12:21:47 +02:00
Yann Collet
a6bdf55759 fixed memory leak 2016-09-15 17:02:06 +02:00
Yann Collet
644a8da88a fixed minor conversion warning 2016-09-15 16:16:21 +02:00
Yann Collet
4cb212938c introduced ZSTD_resetCStream() 2016-09-15 14:54:07 +02:00
Yann Collet
fa0c09760c variable renaming 2016-09-15 14:11:01 +02:00
Yann Collet
d7c6589df8 support ZSTD_sizeof_*() on NULL 
added ZSTD_sizeof_CDict()
 2016-09-15 02:57:27 +02:00
Yann Collet
e91c4b4cef introduced ZSTD_resetDStream() . 
added : ZSTD_sizeof_DDict()
 2016-09-14 16:55:44 +02:00
Yann Collet
d092d77cfc minor variable renaming 2016-09-14 16:14:57 +02:00
Yann Collet
64deef3bee Fixed srcSize=1 2016-09-14 00:16:07 +02:00
Yann Collet
26ec254066 new strategy for faster DDict decompression 2016-09-13 16:52:16 +02:00
Yann Collet
ac175d46d4 updated comments 2016-09-13 00:51:47 +02:00
Yann Collet
a3481d6de0 make uninstall 2016-09-12 05:04:26 +02:00
Yann Collet
b3060f7a9e changed streaming decoder behavior : now, when all compressed frame is consumed, it means decompression is completed, with regenerated data fully flushed. 2016-09-09 16:44:16 +02:00
Yann Collet
01c199226a updated decompression streaming example 2016-09-08 19:29:04 +02:00
Yann Collet
5c6d244973 Merge branch 'dev' of github.com:facebook/zstd into dev 2016-09-07 14:54:54 +02:00
Yann Collet
ac8bace6b1 support large skippable frames 2016-09-07 14:54:23 +02:00
Yann Collet
0e07bf3f60 added comments on searchLength min / max (#337) 2016-09-07 06:33:02 +02:00
Yann Collet
95d07d7447 introduced CHECK_E 2016-09-06 16:38:51 +02:00
Yann Collet
3e21ec5b01 introduced CHECK_F 2016-09-06 15:36:19 +02:00
Yann Collet
5c956d593c FORCE_INLINE common definition 2016-09-06 15:05:19 +02:00
Yann Collet
edbcd9f5b2 fixed zbufftest 2016-09-06 14:30:57 +02:00
Yann Collet
b624922b14 fixed checksum 2016-09-06 11:16:57 +02:00
Yann Collet
a7737f6a60 improved compression on small files when using same parameters 2016-09-06 09:44:59 +02:00
Yann Collet
7ae67bb18a small compression speed gains with using_CDict 2016-09-06 06:28:05 +02:00
Yann Collet
1d4208c029 clarified streaming decompression inlined doc 2016-09-06 05:16:40 +02:00
Yann Collet
7c83dfd5c2 ZSTD_frameHeaderSize_prefix (#340), as result of ZSTD_initStream 2016-09-05 19:47:43 +02:00
Yann Collet
fa72f6bdce clarified inline doc for streaming 2016-09-05 17:39:56 +02:00
Yann Collet
c73a8109bb Merge pull request #344 from inikep/dev10 
unified error codes for legacy decoders
 2016-09-05 07:46:33 -07:00
inikep
45db83f98d ZSTD_decodeLiteralsBlock renamed to ZSTDv01_decodeLiteralsBlock 2016-09-05 14:46:24 +02:00
inikep
476964f6a1 ZSTD_decodeSeqHeaders renamed to ZSTDv01_decodeSeqHeaders 2016-09-05 13:34:57 +02:00
inikep
c13faa1b0f legacy decoders: restored #include <intrin.h> for VC++ 2016-09-05 13:25:07 +02:00
inikep
8161e7321a unified error codes for legacy decoders 2016-09-05 12:29:51 +02:00
Thomas Klausner
b85cdabd50 Enable install targets for NetBSD. 2016-09-04 14:37:57 +02:00
Yann Collet
33a0465a51 fixed a few links 2016-09-02 22:11:49 -07:00
Yann Collet
d56dbc02d3 removed g_displayLevel 2016-09-02 17:28:41 -07:00
Yann Collet
855766d73d clarified dictionary in format description 2016-09-02 17:04:49 -07:00
Yann Collet
d725427a3c g_time => local displayTime 2016-09-02 15:32:39 -07:00
Yann Collet
1563bfeabc fixing FORCE_INLINE for older compilers (#330) 2016-09-02 11:44:21 -07:00
Yann Collet
7304eb7c09 bumped version number 2016-09-01 15:49:26 -07:00
Yann Collet
901e85fe26 version bump 2016-08-31 07:51:25 -07:00
Yann Collet
1c59c20903 removed redundant files 2016-08-31 07:15:44 -07:00
Yann Collet
599c69d917 minor Makefile updates 2016-08-30 13:33:20 -07:00
David Lam
e10f7f3dcb merge 2016-08-30 12:03:36 -07:00
Yann Collet
4ded9e591c added boilerplate 2016-08-30 11:06:28 -07:00
Yann Collet
3b15f1f10f minor refactor 2016-08-30 09:58:50 -07:00
Yann Collet
240795bef7 Merge branch 'dev' of github.com:Cyan4973/zstd into dev 2016-08-30 06:51:55 -07:00
Yann Collet
14200a20f0 Fixed issue #304, reported by @borzunov 2016-08-30 06:51:00 -07:00
David Lam
da9d3b7057 Cleanup some errors in typedef comments and remove duplicated HOWTO from zbuff_decompress.c 2016-08-29 17:31:51 -07:00
Yann Collet
09c3c8e885 Merge pull request #307 from inikep/dev08 
updated README.md
 2016-08-29 16:32:33 -07:00
inikep
6416b0d705 updated README.md 2016-08-29 13:04:26 +02:00
Yann Collet
23b6e05d8e ZSTD_malloc() and ZSTD_free(), to simplify customMem 2016-08-28 21:05:43 -07:00
Yann Collet
5f53b0335e fixed continuation context 2016-08-28 10:00:49 -07:00
Yann Collet
767d8f66fa legacy contexts can be re-used 2016-08-28 08:19:47 -07:00
Yann Collet
4bf317dd00 first version supporting legacy streams (transparent decoding) 2016-08-28 07:43:34 -07:00
Yann Collet
e19a9ef05d update compression level table 2016-08-26 20:02:49 +02:00
Yann Collet
9a021c1aae fixed some minor clang warnings 2016-08-26 09:05:06 +02:00
Yann Collet
cb5a320705 made -Wdocumentation a clang only flag 2016-08-26 08:06:36 +02:00
Yann Collet
87c18b2ebd fixed multiple minor warnings for XCode 2016-08-26 01:43:47 +02:00
Yann Collet
0d59a6f73a removed debug strings 2016-08-25 22:42:46 +02:00
Yann Collet
5a02b69215 reinforced fix for huge files 2016-08-25 22:24:59 +02:00
Yann Collet
96bdd87de4 fixed : compression bug on very large files 2016-08-25 14:34:42 +02:00
inikep
a3a47ec4d0 Merge remote-tracking branch 'refs/remotes/Cyan4973/dev' into Other 2016-08-24 21:25:49 +02:00
Yann Collet
a2cdffe556 fixed wrong parameter issue 2016-08-24 19:42:15 +02:00
inikep
e416e30019 remove unnecessary comments 2016-08-24 17:32:09 +02:00