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3657 Commits

Author SHA1 Message Date
Yann Collet
09e3bb95d2 Merge branch 'dev' into libzstd_autoconf_full 2020-10-28 10:53:08 -07:00
Yann Collet
0adce4631d Merge branch 'libzstd_autoconf_full' of github.com:facebook/zstd into libzstd_autoconf_full 2020-10-28 10:25:55 -07:00
Yann Collet
f6ecf1568f minor Makefile refactor 
hopefully improving readability
 2020-10-28 09:39:15 -07:00
senhuang42
3ed5d053d8 Clarify comments in zstd.h some more 2020-10-28 09:53:09 -04:00
Nick Terrell
599ff58e08
Merge pull request #2339 from terrelln/zstdmt-stability 
Fix zstdmt stability issues and clean up the zstdmt code
 2020-10-27 19:43:13 -07:00
Yann Collet
ceccd7ae2d Merge branch 'dev' into libzstd_autoconf_full 2020-10-27 15:45:30 -07:00
Yann Collet
2d2507b9db
Merge pull request #2374 from bket/portability 
'head -c BYTES' is non-portable
 2020-10-27 14:15:35 -07:00
sen
17b700d78a
Merge pull request #2366 from senhuang42/enable_ldm_by_default 
Enable LDM by default if window size >= 128MB and strategy uses opt parser
 2020-10-27 14:59:28 -04:00
Nick Terrell
0953645837
Merge pull request #2362 from senhuang42/fix_ldm_fuzz_issue 
Fix long distance matcher OSS-fuzz issue
 2020-10-27 11:13:03 -07:00
senhuang42
3163909d14 Remove unused variable position 2020-10-27 12:58:12 -04:00
senhuang42
dc448563e9 Add test compatibility with last literals in sequences 2020-10-27 12:35:28 -04:00
Björn Ketelaars
1f661b5f6b 'head -c BYTES' is non-portable 2020-10-27 16:55:23 +01:00
senhuang42
1d221ecc03 Add support for representing last literals in the extracted seqs 2020-10-27 11:19:48 -04:00
senhuang42
9171f920cd Improve documentation of seqStore_t 2020-10-27 10:50:22 -04:00
senhuang42
96b0ff7886 Improve documentation regarding various operations in copyBlockSequences 2020-10-27 10:36:06 -04:00
senhuang42
3a11c7eb03 Modify ZSTD_copyBlockSequences to agree with new API 2020-10-27 10:31:40 -04:00
senhuang42
761f40d1c6 Clarify and modify ZSTD_Sequence definition 2020-10-27 09:41:32 -04:00
Yann Collet
456db0c377 make install only rebuild binaries if they don't exist 
Now `make` followed by `make install` doesn't rebuild binaries

also : only generated target directories if they don't already exist
 2020-10-23 16:46:49 -07:00
Yann Collet
a6ee614a44 make zstd is now differentiated from zstd-nomt 
avoids mixing object files using different flags
 2020-10-23 16:08:21 -07:00
Yann Collet
89b961ea46 simplified silent mode maintenance 2020-10-23 10:41:17 -07:00
Yann Collet
ffe8d9e428 fix partial lib test 2020-10-23 10:27:12 -07:00
Yann Collet
b5d4728713 simplified silent mode 2020-10-23 10:22:52 -07:00
Yann Collet
a7ad05bf57 fixed building libzstd with manual BUILD_DIR 
and when HASH is not found
 2020-10-23 10:14:04 -07:00
Yann Collet
d3f1a9b5bd fix partial-build test 
sometimes, the scope difference is solely determined by the list of source files,
not by the flags.
 2020-10-22 21:36:09 -07:00
Yann Collet
a912ef0952 can integrate later dynamic flags changes 
for example `libzstd-mt` is `differentiated from `libzstd`
 2020-10-22 18:48:06 -07:00
Yann Collet
f90424da2d
Merge pull request #2368 from facebook/progressive_libzstd 
faster rebuild of libzstd
 2020-10-22 17:36:56 -07:00
Yann Collet
ce6cd07c33 updated build documentation 2020-10-22 12:31:23 -07:00
Yann Collet
e3867fb735 fixed libzstd.dll compilation on mingw 
and zstd linking
 2020-10-22 11:52:19 -07:00
Yann Collet
494f7169ed fix directory creation for Windows' libzstd 2020-10-22 00:15:31 -07:00
Yann Collet
dd24496951 programs/zstd also automatically generate object dir per conf 
same rules as lib/libzstd
can also be controlled via HASH and BUILD_DIR
 2020-10-21 23:38:33 -07:00
Yann Collet
0f8ee5c51e Merge branch 'dev' into libzstd_autoconf 2020-10-21 22:36:09 -07:00
Yann Collet
d0436b2a45 automatically detect configuration changes 
Makefile now automatically detects modifications of compilation flags,
and produce object files in directories dedicated to this compilation flags.
This makes it possible, for example, to compile libzstd with different DEBUGLEVEL.
Object files sharing the same configration will be generated into their dedicated directories.

Also : new compilation variables
- DEBUGLEVEL : select the debug level (assert & traces) inserted during compilation (default == 0 == release)
- HASH : select a hash function to differentiate configuration (default == md5sum)
- BUILD_DIR : skip the hash stage, store object files into manually specified directory
 2020-10-21 19:22:45 -07:00
Yann Collet
8a453a34c5 automatic %.h header dependency tracking 
also : BUILD_DIR can be manually specified
 2020-10-21 17:25:07 -07:00
Yann Collet
2224ec33ed
Merge pull request #2367 from facebook/progressive_build 
faster rebuild of zstd
 2020-10-21 15:43:14 -07:00
Yann Collet
2b99bc29bf consolidated vpath 2020-10-21 04:01:01 -07:00
Yann Collet
e8eb2939fe store %.o object files into obj/ 
both static and dynamic libraries have their own object directory
 2020-10-21 03:44:38 -07:00
Yann Collet
3e519be965 minor cleaning 2020-10-21 03:22:27 -07:00
Yann Collet
911dbdbb4b build libzstd.so from object files 
%.o object files generated for dynamic library
must be different from those generated for static library.

Due to this difference, %.o were so far only generated for the static library.
The dynamic library was rebuilt from %.c source.

This meant that, for every minor change, the entire dynamic library had to be rebuilt.

This is fixed in this PR :
only the modified %.c source get rebuilt.
 2020-10-20 22:19:57 -07:00
senhuang42
8bdb32aebe Add a function for LDM enable check 2020-10-20 13:46:02 -04:00
senhuang42
578e889ec1 Move ldm enable to compressStream2() 2020-10-20 13:04:45 -04:00
senhuang42
d28d8a1d72 Include LDM tables size for CCtx size estimation where relevant 2020-10-20 09:21:30 -04:00
senhuang42
b1c7fc5768 Add compatibility for multithreading 2020-10-19 12:07:06 -04:00
senhuang42
aad436da37 Document ldm enabled by default in zstd.h 2020-10-19 11:02:29 -04:00
senhuang42
590f7f55f0 Add ldm enable condition in ZSTD_resetCCtx_internal 2020-10-19 10:26:17 -04:00
senhuang42
4d01979b62 Expose and call ZSTD_ldm_skipRawSeqStoreBytes() 2020-10-16 20:30:00 -04:00
Yann Collet
a0ec50c2dc
Merge pull request #2355 from senhuang42/change_ldm_mt_config 
Reduce --long mode MT jobsize at higher levels
 2020-10-16 13:35:50 -07:00
Yann Collet
314c7df170 minor : change test order 
to reduce a warning with `clang` on Windows
 2020-10-16 13:26:47 -07:00
senhuang42
f49926edf4 Change cycleLog adjustment to +3 from +4 2020-10-15 09:56:05 -04:00
senhuang42
ee84817fe7 Reset posInSequence when using ZSTD_referenceExternalSequences() 2020-10-14 22:06:08 -04:00
senhuang42
d0550bb18f Clarify argument names, fix DEBUGLOG() statements 2020-10-14 15:45:43 -04:00
senhuang42
3f99c9b38d Adjust match backwards count args 2020-10-14 15:23:03 -04:00
senhuang42
bf0d559449 Introduce, implement, and call ZSTD_ldm_countBackwardsMatch_2segments() 2020-10-14 12:58:06 -04:00
senhuang42
467e4383b0 Merge branch 'dev' of github.com:senhuang42/zstd into change_ldm_mt_config 2020-10-14 10:17:50 -04:00
Nick Terrell
8c46c1d851
Merge pull request #2356 from bsdimp/neon 
aarch64: use __ARM_NEON instead of __aarch64__ to control use of neon
 2020-10-13 15:42:46 -07:00
Yann Collet
1283935ac2
Merge pull request #2281 from likema/fix-aix-51 
Fix building on AIX 5.1
 2020-10-13 13:09:33 -07:00
Yann Collet
f5d5cd3b40
Merge pull request #2341 from senhuang42/ldm_optimized_for_opt_parser 
Integrate long distance matches into optimal parser
 2020-10-13 13:09:07 -07:00
Warner Losh
43c0054405 aarch64: use __ARM_NEON instead of __aarch64__ to control use of neon 
There are compilation environments in aarch64 where NEON isn't
available. While these environments could define ZSTD_NO_INTRINSICS,
it's more fail-safe to use the more specific symbol to know if NEON
extensions are available.

__ARM_NEON is the proper symbol, defined in ARM C Language Extensions
Release 2.1 (https://developer.arm.com/documentation/ihi0053/d/). Some
sources suggest __ARM_NEON__, but that's the obsolete spelling from
prior versions of the standard.

Signed-off-by: Warner Losh <imp@bsdimp.com>
 2020-10-13 12:12:46 -06:00
Nick Terrell
7e6f91ed84 [minor] Improve docs and add an assert in response to review 2020-10-12 16:43:17 -07:00
senhuang42
354b5f1c0a Use cycleLog instead of chainLog to determine LDM jobLog 2020-10-12 16:09:59 -04:00
Nick Terrell
441ce4178f [zstdmt] Clarify a comment 2020-10-12 12:58:13 -07:00
Nick Terrell
efff5d8b2d [zstdmt] Fix determinism issue with rsyncable mode 
The problem occurs in this scenario:
1. We find a synchronization point.
2. We attmept to create the job.
3. We fail because the job table is full: `mtctx->nextJobID > mtctx->doneJobID + mtctx->jobIDMask`.
4. We call `ZSTDMT_compressStream_generic` again.
5. We forget that we're at a sync point already, and we continue looking
   for the next sync point.

This fix is to detect if we're currently paused at a sync point, and if
we are then don't load any more input.

Caught by zstreamtest. I modified it to make the bug occur more often
(~1/100K -> ~1/200) and verified that it is fixed after. I then ran a
few hundred thousand unmodified zstreamtest iterations to verify.
 2020-10-12 12:55:17 -07:00
Nick Terrell
ede4f97153 [zstdmt] Fix bug where extra empty blocks are emitted 
When zstdmt cannot get a buffer and `ZSTD_e_end` is passed an empty
compression job can be created. Additionally, `mtctx->frameEnded` can be
set to 1, which could potentially cause problems like unterminated blocks.

The fix is to adjust to `ZSTD_e_flush` even when we can't get a buffer.
 2020-10-12 12:55:17 -07:00
Nick Terrell
c51a9e79b9 [zstdmt] Rip out the zstdmt API 
This commit leaves only the functions used by zstd_compress.c. All other
functions have been removed from the API. The ZSTDMT unit tests in
fuzzer.c and zstreamtest.c have been rewritten to use the ZSTD API. And
the --mt zstreamtest tests have been ripped out.
 2020-10-12 12:55:16 -07:00
Nick Terrell
1784c4b4ab [zstdmt] Remove single-pass shortcut 
Simplifies the code and removes blocking from zstdmt.

At this point we could completely delete
`ZSTDMT_compress_advanced_internal()`. However I'm leaving it in because
I think we want to do that in the zstd-1.5.0 release, in case anyone is
still using the ZSTDMT API, even though it is not installed by default.

Fixes #2327.
 2020-10-12 12:53:26 -07:00
Nick Terrell
b55ae009ac [zstdmt] Remove singleBlockingThread mode 
This is already handled by zstd, so this logic is never used.
 2020-10-12 12:53:26 -07:00
Nick Terrell
d5c688e8ae Fix ZSTD_adjustCParams_internal() to handle dictionary logic 
Pass in the `ZSTD_cParamMode_e` to select how we define our cparams.
Based on the mode we either take the `dictSize` into account or we set
it to `0`. See the documentation for `ZSTD_cParamMode_e`.

Some of the modes currently share the same behavior. But they have
distinct modes because they are drastically different cases. E.g.
compression + reprocessing the dictionary and creating a cdict.

Additionally, when downsizing the hashLog and chainLog take the
(adjusted) dictionary size into account, since the size of the
dictionary gets added onto the window size.

Adds a simple test to ensure that we aren't downsizing too far.
 2020-10-12 12:50:04 -07:00
Nick Terrell
fadaab8c7c [minor improvement] Pass 0 as the content size in the DDS 
The DDS structure can't be copied into the working tables like the DMS.
So it doesn't need to account for the source size when sizing its
parameters, just the dictionary size.
 2020-10-12 12:47:21 -07:00
Nick Terrell
48ef15fb47 [minor improvement] Pass dictSize when selecting parameters 
When selecting parameters in streaming compression with a dictionary use
the dictionary size to select the parameters.
 2020-10-12 12:47:19 -07:00
Nick Terrell
012818df99 [refactor] Remove ZSTD_resetCStream_internal() 
This function is only called in one place. It isn't a logical separation
of duties, and it was only obsfucating the code now, so inline it.
 2020-10-12 12:46:10 -07:00
Nick Terrell
7083f79008 [bug] Fix dictContentType when reprocessing cdict 
Conditions to trigger:
* CDict is loaded as raw content.
* CDict starts with the zstd dictionary magic number.
* The CDict is reprocessed (not attached or copied).
* The new API is used (streaming or `ZSTD_compress2()`).

Bug: The dictionary is loaded as a zstd dictionary, not a raw content
dictionary, because the dict content type is set to `ZSTD_dct_auto`.

Fix: Pass in the dictionary content type from cdict creation to the call
to `ZSTD_compress_insertDictionary()`.

Test: Added a test case that exposes the bug, and fixed the raw
content tests to not modify the `dictBuffer`, which makes all future
tests with the `dictBuffer` raw content, which doesn't seem intentional.
 2020-10-12 12:46:10 -07:00
Dmitriy Titarenko
1b28d6501c Fixed dll path in case of cross-compilation 2020-10-11 23:51:44 +05:00
senhuang42
d6911b86be Require LDM matches to be strictly greater in length 2020-10-09 12:56:18 -04:00
Like Ma
cc907770bd Fix building on AIX 5.1 2020-10-09 18:34:00 +08:00
Yann Collet
12541931fa
Merge pull request #2328 from marxin/zstd-pool-api 
Allow external creation of POOLs that can be shared.
 2020-10-09 01:00:50 -07:00
Yann Collet
6fdb0cb8d9
Merge pull request #2303 from senhuang42/let_cdict_take_clevel_priority 
For ZSTD_compressStream2(), let cdict take compression level priority
 2020-10-09 00:48:30 -07:00
senhuang42
b9c8033cde Define kNullRawSeqStore for every file 2020-10-07 19:02:41 -04:00
senhuang42
a6165c1b28 Change matchState_t::ldmSeqStore to pointer 2020-10-07 14:13:57 -04:00
senhuang42
abce708a56 Move posInSequence correction to correct location 2020-10-07 13:56:25 -04:00
senhuang42
0c515590d8 Replace offCode of largest match if ldm's offCode is superior 2020-10-07 13:56:25 -04:00
senhuang42
0fac8e07e1 Refactor usage of ms->ldmSeqStore so that it is not modified during compressBlock(), and simplify skipRawSeqStoreBytes 2020-10-07 13:56:25 -04:00
senhuang42
a5500cf2af Refactor separate ldm variables all into one struct 2020-10-07 13:56:25 -04:00
senhuang42
0731b94e7c Use kNullRawSeqStore constant in zstdmt_compress.c 2020-10-07 13:56:25 -04:00
senhuang42
0325d878f2 Remove bubbling down matches with longer offCode and same matchLen 2020-10-07 13:56:25 -04:00
senhuang42
031b7ec15f Disable LDM minMatch adjustment when using opt parser 2020-10-07 13:56:25 -04:00
senhuang42
ddf8a3f1b9 Enable inclusion of mid-flight LDMs in opt parser 2020-10-07 13:56:25 -04:00
senhuang42
88f72ed942 Correct incorrect offcode calculation 2020-10-07 13:56:25 -04:00
senhuang42
d8b43a4202 Add explicit conversion of size_t to U32 2020-10-07 13:56:25 -04:00
senhuang42
b8bfc4e63d Add cSize regression test to fuzzer.c 2020-10-07 13:56:25 -04:00
senhuang42
c87d2e5866 Prefix new static ldm helpers with ZSTD_opt 2020-10-07 13:56:25 -04:00
senhuang42
429dec4f42 Add DEBUGLOG() calls in ldm helpers 2020-10-07 13:56:25 -04:00
senhuang42
10647924f1 Make function descriptions more accurate 2020-10-07 13:56:25 -04:00
senhuang42
1a687b3fcb Improve documentation of relevant structs 2020-10-07 13:56:25 -04:00
senhuang42
37617e23d7 Correct matchLength calculation and remove unnecessary functions 2020-10-07 13:56:25 -04:00
senhuang42
7dee62c287 Reset ldmSeqStore after initStats_ultra() pass for btultra2 2020-10-07 13:56:25 -04:00
senhuang42
0718aa70df Refactor existing functions to use posInSequence 2020-10-07 13:56:25 -04:00
senhuang42
7348b40a87 Adjustments to ldm_calculateMatchRange() to calculate bounds correctly 2020-10-07 13:56:25 -04:00
senhuang42
a1ef2db5b2 Add ldm_calculateMatchRange() function 2020-10-07 13:56:25 -04:00
senhuang42
ef823e0299 Remove rawSeqStore.base and add rawSeqStore.posInSequence 2020-10-07 13:56:25 -04:00
senhuang42
4793ae3b84 Prevent duplicate LDMs from being inserted 2020-10-07 13:56:25 -04:00
senhuang42
65f9cfeeec Add extra bounds check to prevent heap access after free ASAN error 2020-10-07 13:56:25 -04:00
senhuang42
bff5785fd5 Address mixed variables C90 warning 2020-10-07 13:56:25 -04:00
senhuang42
724b94ed18 ldm_getNextMatch fixed return values 2020-10-07 13:56:25 -04:00
senhuang42
ea92fb3a68 Cleanups, add comments and explanations 2020-10-07 13:56:25 -04:00
senhuang42
78da2e1808 Fixed sifting algorithm 2020-10-07 13:56:25 -04:00
senhuang42
6ccd97fc96 Fixed end of match boundary update issues 2020-10-07 13:56:25 -04:00
senhuang42
28394b64f2 Add proper bounds check on adding ldms 2020-10-07 13:56:25 -04:00
senhuang42
a2f2b58d04 Add a function ldm_voidSequences() 2020-10-07 13:56:25 -04:00
senhuang42
9c3c7cd20e Fix function argument to getNextMatch() 2020-10-07 13:56:25 -04:00
senhuang42
c8b8572b38 Adjustments to no longer segfault on nci 2020-10-07 13:56:25 -04:00
senhuang42
f57c7e6bbf Add base adjustment correction 2020-10-07 13:56:25 -04:00
senhuang42
5df9b5e05f Add initial getNextMatch() in opt parser 2020-10-07 13:56:25 -04:00
senhuang42
f8ce7cabc3 Added more debugging 2020-10-07 13:56:25 -04:00
senhuang42
84009a076a Add re-copying of ldmSeqStore after processing 2020-10-07 13:56:25 -04:00
senhuang42
42395a70c2 Add debug statements, flesh out functions 2020-10-07 13:56:25 -04:00
senhuang42
dd3dd199bb Get zstd to build with new functions and callsites, fix arguments 2020-10-07 13:56:25 -04:00
senhuang42
766c4a8c28 Implement part of ldm_maybeAddLdm() 2020-10-07 13:56:25 -04:00
senhuang42
84777059d2 Implement ldm_getNextMatch() 2020-10-07 13:56:24 -04:00
senhuang42
28c74bf591 Implement basic splitSequence and skipSequence functions 2020-10-07 13:56:24 -04:00
senhuang42
634ab7830d Flesh out required args for ldm_handleLdm() 2020-10-07 13:56:24 -04:00
senhuang42
db70761032 Add callsites to appropriate locations in ..opt_generic() 2020-10-07 13:56:24 -04:00
senhuang42
aea61e3c91 Add ldm helper function declarations into opt parser 2020-10-07 13:56:24 -04:00
senhuang42
35d9f488f5 Modify codepath to use opt parser exclusively if the compression level is high enough 2020-10-07 13:56:24 -04:00
senhuang42
e1ae398ad5 Add rawSeqStore to match state 2020-10-07 13:56:24 -04:00
Martin Liska
b684900a4a Allow external creation of POOLs that can be shared. 2020-10-07 12:44:33 +02:00
Nick Terrell
4b4d8b4dc9
Merge pull request #2338 from terrelln/comments 
Add comments to ZSTD_getLowest{Match,Prefix}Index()
 2020-10-01 18:56:24 -07:00
Nick Terrell
0057c4acf7
Merge pull request #2333 from terrelln/stable-dst 
Reset all decompression parameters in ZSTD_DCtx_reset()
 2020-10-01 18:56:11 -07:00
Nick Terrell
2e7d174130 Reset all decompression parameters in ZSTD_DCtx_reset() 
* Reset all decompression parameters in `ZSTD_DCtx_reset()` when
  resetting parameters.
* Add a test case.
 2020-10-01 14:19:21 -07:00
Nick Terrell
27c969ed07 Add comments to ZSTD_getLowest{Match,Prefix}Index() 
Clarify how we handle dictionaries in each case.
 2020-10-01 13:21:46 -07:00
Yann Collet
cc88eb7594
Merge pull request #2317 from animalize/msvc_inline 
Let MSVC force inline ZSTD_hashPtr() function
 2020-09-30 08:27:53 -07:00
Nick Terrell
f1cbeec039 [superblock] Reduce stack usage by correctly sizing header buffers 2020-09-24 19:42:04 -07:00
Nick Terrell
6a1e526ea7 [lib] Add ZSTD_COMPRESS_HEAPMODE tuning parameter 2020-09-24 19:42:04 -07:00
Nick Terrell
b841387218 [freestanding] Improve macro resolution to handle #if X 2020-09-24 19:42:04 -07:00
Nick Terrell
caecd8c211 Allow user to override ASAN/MSAN detection 
Rename ADDRESS_SANITIZER -> ZSTD_ADDRESS_SANITIZER and same for
MEMORY_SANITIZER. Also set it to 0/1 instead of checking for defined.
This allows the user to override ASAN/MSAN detection for platforms that
don't support it.
 2020-09-24 19:42:04 -07:00
Nick Terrell
88fac5d514 Remove call to memset 
The previous commit fixes the test so it errors on calls to mem*()
functions from <string.h>.
 2020-09-24 19:42:04 -07:00
Nick Terrell
9ae0483858 Reorganize zstd_deps.h and mem.h + replace mem.h for the kernel 2020-09-24 19:41:59 -07:00
Nick Terrell
260fc75028 Move __has_builtin() fallback define to compiler.h 2020-09-24 15:51:08 -07:00
Nick Terrell
4d63ee57f5 Move ASAN/MSAN support declarations to compiler.h 2020-09-24 15:51:08 -07:00
Nick Terrell
b09ec5c2b9 Remove MEM_STATIC_ASSERT and use DEBUG_STATIC_ASSERT instead 2020-09-24 15:51:04 -07:00
Nick Terrell
9261476b7d [lib] Wrap customMem xor checks in parens for readability 
This clarifies operator precedence, and quiets cppcheck in
the Kernel Test Robot. I think this is a slight bonus to
readability, so I am accepting the suggestion.
 2020-09-23 23:26:07 -07:00
Nick Terrell
dec7fb03ec [lib] Silence -Wunused-const-variable warnings 2020-09-23 12:59:57 -07:00
animalize
2e5d73dd72 Use MEM_STATIC FORCE_INLINE_ATTR instead of FORCE_INLINE_TEMPLATE 
It adds `__attribute__((unused))` for __GNUC__, to eliminate `-Werror=unused-function` error.
 2020-09-21 13:26:38 +08:00
animalize
0a69a6b1ca Let MSVC force inline ZSTD_hashPtr() function 
ZSTD_hashPtr() function was not expanded by MSVC, led to low performance compared to GCC.
 2020-09-21 10:38:55 +08:00
Felix Handte
200c960f1d
Merge pull request #2311 from felixhandte/ddss-fix-cparam-derivation 
Fix Compression Parameter Derivation Bugs Introduced by DDSS Changes
 2020-09-18 14:02:14 -04:00
W. Felix Handte
8930c6e551 Use ZSTD_CCtxParams_init() to Init CCtxParams, not memset() 
Even if the discrepancies are at the moment benign, it's probably better to
standardize on using the one true initializer, rather than trying (and failing)
to correctly duplicate its behavior.
 2020-09-17 12:15:33 -04:00
W. Felix Handte
e8a44326fa Avoid Redundancy in ZSTD_initCDict_internal() Args; Don't Take CParams + CCtxParams 2020-09-17 12:08:36 -04:00
W. Felix Handte
eee51a664a Fall Back if Derived CParams are Incompatible with DDSS; Refactor CDict Creation 
Rewrite ZSTD_createCDict_advanced() as a wrapper around
ZSTD_createCDict_advanced2(). Evaluate whether to use DDSS mode *after* fully
resolving cparams. If not, fall back.
 2020-09-15 18:01:08 -04:00
W. Felix Handte
bc6521a6f6 Make ZSTD_createCDict_advanced2() cctxParams Arg Const 2020-09-15 14:06:10 -04:00
W. Felix Handte
26a96a5b35 Do More Complete CParams Deduction in Non-DDSS Path of ZSTD_createCDict_advanced2 
Call ZSTD_getCParamsFromCCtxParams() instead of ZSTD_getCParams_internal().
 2020-09-15 13:57:43 -04:00
W. Felix Handte
a2af804129 Pull CParam Override Logic into Helper 2020-09-15 13:38:05 -04:00
Yann Collet
c91a0855f8 check endDirective in ZSTD_compressStream2() 
fix #2297
also :
- `assert()` `endDirective` in `ZSTD_compressStream_internal()`, for debug mode
- add relevant tests
 2020-09-14 10:56:08 -07:00