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711 Commits

Author SHA1 Message Date
Yann Collet
bdd0f6f046 improved make clean in tests/fuzz 2017-09-27 15:20:08 -07:00
Yann Collet
60059df051 shorter make test to avoid time out on travis CI 
Timed tests (fuzzer) are reduced
Long tests are shortened (less data generated)
 2017-09-27 15:16:27 -07:00
Yann Collet
ea1f50bf73 removed ZSTD_decompressBegin() from ZSTD_initDCtx_internal() 
It does not feel "right" from a dependency perspective.
ZSTD_initDCtx_internal() is triggered once, on DCtx creation,
while ZSTD_decompressBegin() is invoked at the beginning of each new frame,
and is also a user-facing prototype.

Downside : a DCtx must be init before first usage !
This was always the intention by the way, and is documented as such.
This stage is automatically done within ZSTD_decompress() and variants,
and also within ZSTD_decompressStream().
Only ZSTD_decompressContinue() is impacted,
it must be preceded by a ZSTD_decompressBegin(), as detailed in doc.

A test has been fixed, to no longer rely on undocumented assumption that ZSTD_decompressBegin() is invoked during init.
 2017-09-27 13:51:05 -07:00
Yann Collet
bfabd1d4dc fixed zstreamtest decoding error 
same error (wrong output buffer size) was present
on --mt and --new_api tests.
 2017-09-27 01:01:11 -07:00
Yann Collet
ca306c1c84 fixed a bug in zstreamtest 
decoder output buffer would receive a wrong size.

In previous version, ZSTD_decompressStream() would blindly trust the caller that pos <= size.
In this version, this condition is actively checked,
and the function returns an error code if this condition is not respected.

This check could also be done with an assert(),
but since this is a user-facing interface, it seems better to keep this check at runtime.
 2017-09-27 00:39:41 -07:00
Yann Collet
4791561c4a silence minor gcc warning -Wempty-body 
also silence fuzz test artefacts
 2017-09-26 17:57:38 -07:00
Yann Collet
91ffe71ec8 Merge pull request #864 from terrelln/long 
Increase maximum window size
 2017-09-26 16:26:29 -07:00
Yann Collet
df4e9bba25 fixed constant errors for gcc in c99 mode 
C standard does not consider a `static const int` as a constant.
This is a problem for initializer, and ZSTD_STATIC_ASSERT().
Replaced by macro values
 2017-09-26 14:31:06 -07:00
Yann Collet
9f0b8dfbe9 Merge branch 'dev' into newFormats 2017-09-26 14:22:39 -07:00
Nick Terrell
471aa385b3 [fuzz] Speed up round trip tests 
* Enforce smaller maximum values for parameters
* Adjust parameters to the source size

The memory usage is reduced by about 5x, which makes the fuzzers run at
least twice as fast, even more so with ASAN/MSAN enabled.
 2017-09-26 14:03:43 -07:00
Nick Terrell
c233bdbaee Increase maximum window size 
* Maximum window size in 32-bit mode is 1GB, since allocations for 2GB fail
  on my Mac.
* Maximum window size in 64-bit mode is 2GB, since that is the largest
  power of 2 that works with the overflow prevention.
* Allow `--long=windowLog` to set the window log, along with
  `--zstd=wlog=#`. These options also set the window size during
  decompression, but don't override `--memory=#` if it is set.
* Present a helpful error message when the window size is too large during
  decompression.
* The long range matcher defaults to a hash log 7 less than the window log,
  which keeps it at 20 for window log 27.
* Keep the default long range matcher window size and the default maximum
  window size at 27 for the API and CLI.
* Add tests that use the maximum window size and hash size for compression
  and decompression.
 2017-09-26 14:00:01 -07:00
Yann Collet
8a4d0abc1c Merge pull request #861 from terrelln/zip 
[fuzz][CI] Set up regression tests
 2017-09-25 17:11:35 -07:00
Yann Collet
52a1d1c6dc added ZSTD_DCtx_reset() 2017-09-25 16:56:48 -07:00
Yann Collet
5d8fdd1641 Merge pull request #855 from terrelln/maxoff 
[libzstd] Increase MaxOff
 2017-09-25 16:34:29 -07:00
Nick Terrell
917a213254 [fuzz] Determine flags based on compiler version 2017-09-25 15:32:36 -07:00
Nick Terrell
11e21f23cb [fuzz] Mention the corpora in the README 2017-09-25 15:31:38 -07:00
Nick Terrell
6bb781e0f1 [fuzz] Add regressiontest targets 2017-09-25 15:31:33 -07:00
Yann Collet
62568c9a42 added capability to generate magic-less frames 
decoder not implemented yet
 2017-09-25 14:26:26 -07:00
Nick Terrell
bbe77212ef [libzstd] Increase MaxOff 2017-09-25 13:36:18 -07:00
Nick Terrell
bfad5568b5 [fuzz] Make simple_round_trip compile cleanly 2017-09-25 13:28:45 -07:00
Nick Terrell
23199b6daf [fuzz] Fix fuzz.py env flags parsing 2017-09-25 13:28:18 -07:00
Nick Terrell
1c23b64049 [fuzz] fuzz.py can minimize and zip corpora 
* "minimize" minimizes the corpora into an output directory.
* "zip" zips up the minimized corpora, which are ready to deploy.
 2017-09-25 12:04:12 -07:00
Yann Collet
96f0cde31a minor function rename 
ZSTD_estimateCStreamSize_advanced_usingCParams -> ZSTD_estimateCStreamSize_usingCParams
_usingX is clear.
_advanced feels redundant
 2017-09-24 16:47:02 -07:00
Yann Collet
cd3115b284 added control from frame content size at end of decompression 
adding check at end of single-pass ZSTD_decompressFrame().
Check within ZSTD_decompressContinue() was already added in a previous patch : b3f33ccfb3
 2017-09-21 16:21:10 -07:00
Nick Terrell
1fe762e236 [zstdcli] Fix LDM advanced options parsing 2017-09-18 14:49:35 -07:00
Yann Collet
31829cb057 Merge pull request #847 from terrelln/fuzzer 
[fuzzer] Fuzz long range matching & new API
 2017-09-15 12:09:00 -07:00
Nick Terrell
39357c41cb [fuzzer] Fuzz long range matching & new API 2017-09-14 14:48:08 -07:00
Yann Collet
218c09e5b3 Merge pull request #844 from terrelln/fuzzer 
Fuzzer
 2017-09-14 11:40:25 -07:00
Nick Terrell
9712d5ebe6 [fuzzer] Fix bugs in fuzz.py 2017-09-13 19:08:35 -07:00
Nick Terrell
a6f08b4783 [fuzzer] Fix FUZZ_seed() 2017-09-13 18:41:32 -07:00
Nick Terrell
6c6412cef9 [fuzzer] Update README.md 2017-09-13 18:23:52 -07:00
Nick Terrell
6b8236cf7e [fuzz] Add fuzzing helper script 2017-09-13 17:45:21 -07:00
Nick Terrell
b7e1522330 Add block fuzzers 2017-09-13 17:44:41 -07:00
Nick Terrell
def3214d74 [fuzzer] Handle single empty directory 2017-09-13 17:44:30 -07:00
Yann Collet
739b620814 Merge pull request #842 from stellamplau/decodeCorpus-maxSize 
Add flag to limit max decompressed size in decodeCorpus
 2017-09-13 17:26:55 -07:00
Nick Terrell
8b6c80ada8 Update fuzzer Makefile 2017-09-13 16:16:57 -07:00
Nick Terrell
677c2cbf89 Update fuzzer sources 2017-09-13 16:16:57 -07:00
Stella Lau
963558a072 Fix implicit conversion error 2017-09-13 16:01:16 -07:00
Stella Lau
40bf0ced7d Add flag to limit max decompressed size in decodeCorpus 2017-09-13 15:16:56 -07:00
Yann Collet
f1571dad8f Merge pull request #838 from stellamplau/ldm-mergeDev 
Add long distance matcher
 2017-09-13 13:24:08 -07:00
Yann Collet
be1f2dac5b Merge pull request #841 from facebook/utilTimeAPI 
modified util::time API (T19505791)
 2017-09-13 11:41:01 -07:00
Yann Collet
a1bc08834f Merge pull request #840 from stellamplau/decodeCorpus-blocks 
Make decodecorpus generate raw compressed blocks
 2017-09-13 09:34:04 -07:00
Yann Collet
c95c0c9725 modified util::time API 
for easier invocation.
- no longer expose frequency timer :
it's either useless, or stored internally in a static variable (init is only necessary once).
- UTIL_getTime() provides result by function return.
 2017-09-12 18:12:46 -07:00
Stella Lau
e89065506e Make decodecorpus generate raw compressed blocks 2017-09-12 17:18:45 -07:00
Stella Lau
3d8e313f64 Reduce ldm hash table size in test 2017-09-11 17:21:28 -07:00
Stella Lau
eb3327c10a Merge branch 'dev' of https://github.com/facebook/zstd into ldm-mergeDev 2017-09-11 15:00:01 -07:00
Yann Collet
b3f33ccfb3 use ZSTD_decodingBufferSize_min() inside ZSTD_decompressStream() 
Use same definition as public one
minor : reduce allocated buffer size in some cases
(when frameContentSize is known and == windowSize)
 2017-09-09 14:37:28 -07:00
Yann Collet
058ed2ad33 ZSTD_decodingBufferSize_min() 
supporting function for bufferless streaming API (ZSTD_decompressContinue())
makes it possible to correctly size a round buffer for decoding using this API.

also : added field blockSizeMax within ZSTD_frameHeader,
as it's a necessary information to know when to restart at beginning of decoding buffer.
 2017-09-09 01:03:29 -07:00
Yann Collet
3128e03be6 updated license header 
to clarify dual-license meaning as "or"
 2017-09-08 00:09:23 -07:00
Stella Lau
eeff55dfa8 Merge remote-tracking branch 'upstream/dev' into ldm-mergeDev 2017-09-06 15:56:32 -07:00
Stella Lau
9e4060200b Add tests and fix pointer alignment 2017-09-06 09:14:05 -07:00
Stella Lau
af4068a697 Fix function name in tests/fuzz/regression_driver 2017-09-05 22:14:41 -07:00
Stella Lau
67d4a6161c Add ldmBucketSizeLog param 2017-09-02 21:55:29 -07:00
Stella Lau
a1f04d518d Move hashEveryLog to cctxParams and update cli 2017-09-01 15:05:47 -07:00
Stella Lau
767a0b3be1 Move ldm hashLog, bucketLog, and mml to cctxParams 2017-09-01 12:24:59 -07:00
Stella Lau
17d8e0bdcc Merge remote-tracking branch 'upstream/longRangeMatcher' into ldm-integrate 2017-09-01 10:19:38 -07:00
Stella Lau
8081becadc Add long distance matching as a CCtxParam 2017-09-01 09:18:58 -07:00
Eiichi Tsukata
7492e7f1c7 tests/fuzz: change ZSTD_BLOCKSIZE_ABSOLUTEMAX into ZSTD_BLOCKSIZE_MAX 
ZSTD_BLOCKSIZE_ABSOLUTEMAX is changed at the commit:
fa3671eac7
 2017-09-01 16:37:39 +09:00
Eiichi Tsukata
6639395979 tests/fuzz: fix make all target names 2017-09-01 16:32:40 +09:00
Yann Collet
d7ad99b2ab Merge branch 'longRangeMatcher' into dev 2017-08-31 18:08:37 -07:00
Yann Collet
e0cecd8736 fixed poolTests 
needs more dependencies from zstd for custom allocators and error codes
 2017-08-31 15:13:31 -07:00
Stella Lau
6a546efb8c Add long distance matcher 
Move last literals section to ZSTD_block_internal
 2017-08-31 12:53:19 -07:00
Yann Collet
b0cb081dc8 last batch of header files changed to reflect new license (#825) 
only remains to update contrib/linux-kernel (@terrelln)
 2017-08-31 12:20:50 -07:00
Yann Collet
e21384fffb fixed more file headers after license change (#825) 2017-08-31 12:11:57 -07:00
Yann Collet
e9dc204f42 fixed a bunch of headers after license change (#825) 2017-08-31 11:24:54 -07:00
Stella Lau
90a31bfa16 Pass dictMode to ZSTDMT_initCStream; fix nits 
- Return error code in estimate{CCtx,CStream}Size functions
 2017-08-30 16:19:07 -07:00
Stella Lau
ee65701720 Minor fixes; remove formatting only changes 2017-08-29 20:27:35 -07:00
Stella Lau
a6e20e1bd7 Add test for raw content starting with dict header 2017-08-29 18:36:18 -07:00
Stella Lau
82d636b76a Rename applyCCtxParams() 2017-08-29 18:03:06 -07:00
Stella Lau
c88fb9267f Replace 'byReference' with enum 2017-08-29 11:55:02 -07:00
Stella Lau
b5b9275e67 Rename estimateCCtxSize_advanced() and estimateCStreamSize_advanced() 2017-08-29 10:49:29 -07:00
Stella Lau
18224608ff Remove ZSTD_setCCtxParameter() 2017-08-25 13:58:41 -07:00
Stella Lau
9911153723 Move jobSize and overlapLog in zstdmt to cctxParams 2017-08-25 13:14:51 -07:00
Stella Lau
eb7bbab36a Remove ZSTD_p_refDictContent and dictContentByRef 2017-08-25 11:11:45 -07:00
Stella Lau
15fdeb9e41 Enforce nbThreads<=1 for estimateCCtxSize 2017-08-24 16:28:49 -07:00
Stella Lau
1c81f725ff Remove duplicated testing code 2017-08-23 15:47:15 -07:00
Stella Lau
6f1a21c7e9 Remove formatting-only changes 2017-08-23 10:24:19 -07:00
Stella Lau
8fd1636776 Remove unused functions 2017-08-22 13:33:58 -07:00
Stella Lau
73c73bf16a Reduce code duplication in zstreamtest 2017-08-21 12:41:19 -07:00
Nick Terrell
3587556873 [cover] Test small maxdict 2017-08-21 11:16:47 -07:00
Stella Lau
91b30dbe84 Remove test parameter 2017-08-21 10:09:06 -07:00
Stella Lau
f181f33bdf Disable tests and refactor 2017-08-21 01:59:08 -07:00
Stella Lau
023b24e6d4 Add cctx param tests 2017-08-20 22:55:07 -07:00
Yann Collet
d6394cc4c3 fixed test-zstd-nolegacy 2017-08-20 10:15:44 -07:00
Yann Collet
32fb407c9d updated a bunch of headers 
for the new license
 2017-08-18 16:52:05 -07:00
Yann Collet
8049556928 Merge pull request #778 from terrelln/bad-huff 
[libzstd] Fix bug in Huffman decompresser
 2017-08-07 14:05:58 -07:00
Nick Terrell
abe12b3399 [libzstd] Fix bug in Huffman decompresser 
The zstd format specification doesn't enforce that Huffman compressed
literals (including the table) have to be smaller than the uncompressed
literals. The compressor will never Huffman compress literals if the
compressed size is larger than the uncompressed size. The decompresser
doesn't accept Huffman compressed literals with 4 streams whose compressed
size is at least as large as the uncompressed size.

* Make the decompresser accept Huffman compressed literals whose size
  increases.
* Add a test case that exposes the bug. The compressed file has to be
  statically generated, since the compressor won't normally produce files
  that expose the bug.
 2017-08-07 12:37:48 -07:00
Stella Lau
e1abc2a367 Switch the sleep function to UTIL_sleepMilli 2017-08-07 11:49:13 -07:00
Stella Lau
1e366f9dea Add test for deadlock 2017-08-02 11:27:50 -07:00
Stella Lau
5adceeed01 Allow queueSize=0 in pool.c and update poolTests 2017-07-31 10:10:16 -07:00
Yann Collet
38ba7002f2 fixed minor warning on unused variable in shell function 2017-07-20 18:39:04 -07:00
Yann Collet
5e6c5203f3 fixed fuzzer test for non OS-X platforms 2017-07-20 15:11:56 -07:00
Yann Collet
1ca1288689 added --memtest=# command to fuzzer 
to jump directly to relevant test section
 2017-07-19 16:01:16 -07:00
Yann Collet
44b0838253 Merge pull request #770 from terrelln/test-mode 
[zstdcli] Fix -t in streaming mode
 2017-07-18 15:40:59 -07:00
Nick Terrell
d0b27483ae [zstdcli] Fix -t in streaming mode 2017-07-18 14:45:49 -07:00
Nick Terrell
cc1522351f [libzstd] Fix bug in Huffman encoding 
Summary:
Huffman encoding with a bad dictionary can encode worse than the
HUF_BLOCKBOUND(srcSize), since we don't filter out incompressible
input, and even if we did, the dictionaries Huffman table could be
ill suited to compressing actual data.

The fast optimization doesn't seem to improve compression speed,
even when I hard coded fast = 1, the speed didn't improve over hard coding
it to 0.

Benchmarks:
$ ./zstd.dev -b1e5
Benchmarking levels from 1 to 5
 1#Synthetic 50%     :  10000000 ->   3139163 (3.186), 524.8 MB/s ,1890.0 MB/s
 2#Synthetic 50%     :  10000000 ->   3115138 (3.210), 372.6 MB/s ,1830.2 MB/s
 3#Synthetic 50%     :  10000000 ->   3222672 (3.103), 223.3 MB/s ,1400.2 MB/s
 4#Synthetic 50%     :  10000000 ->   3276678 (3.052), 198.0 MB/s ,1280.1 MB/s
 5#Synthetic 50%     :  10000000 ->   3271570 (3.057), 107.8 MB/s ,1200.0 MB/s
$ ./zstd -b1e5
Benchmarking levels from 1 to 5
 1#Synthetic 50%     :  10000000 ->   3139163 (3.186), 524.8 MB/s ,1870.2 MB/s
 2#Synthetic 50%     :  10000000 ->   3115138 (3.210), 370.0 MB/s ,1810.3 MB/s
 3#Synthetic 50%     :  10000000 ->   3222672 (3.103), 223.3 MB/s ,1380.1 MB/s
 4#Synthetic 50%     :  10000000 ->   3276678 (3.052), 196.1 MB/s ,1270.0 MB/s
 5#Synthetic 50%     :  10000000 ->   3271570 (3.057), 106.8 MB/s ,1180.1 MB/s
$ ./zstd.dev -b1e5 ../silesia.tar
Benchmarking levels from 1 to 5
 1#silesia.tar       : 211988480 ->  73651685 (2.878), 429.7 MB/s ,1096.5 MB/s
 2#silesia.tar       : 211988480 ->  70158785 (3.022), 321.2 MB/s ,1029.1 MB/s
 3#silesia.tar       : 211988480 ->  66993813 (3.164), 243.7 MB/s , 981.4 MB/s
 4#silesia.tar       : 211988480 ->  66306481 (3.197), 226.7 MB/s , 972.4 MB/s
 5#silesia.tar       : 211988480 ->  64757852 (3.274), 150.3 MB/s , 963.6 MB/s
$ ./zstd -b1e5 ../silesia.tar
Benchmarking levels from 1 to 5
 1#silesia.tar       : 211988480 ->  73651685 (2.878), 429.7 MB/s ,1087.1 MB/s
 2#silesia.tar       : 211988480 ->  70158785 (3.022), 318.8 MB/s ,1029.1 MB/s
 3#silesia.tar       : 211988480 ->  66993813 (3.164), 246.5 MB/s , 981.4 MB/s
 4#silesia.tar       : 211988480 ->  66306481 (3.197), 229.2 MB/s , 972.4 MB/s
 5#silesia.tar       : 211988480 ->  64757852 (3.274), 149.3 MB/s , 963.6 MB/s

Test Plan:
I added a test case to the fuzzer which crashed with ASAN before the patch
and succeeded after.
 2017-07-18 13:20:40 -07:00
Yann Collet
fa3aa04ccd Merge pull request #761 from paulcruz74/file-rename 
renamed pool.c to poolTests.c
 2017-07-14 09:09:45 -07:00
Yann Collet
3a60efd3a9 policy change : ZSTDMT automatically caps nbThreads to ZSTDMT_NBTHREADS_MAX (#760) 
Previously, ZSTDMT would refuse to create the compressor.
Also : increased ZSTDMT_NBTHREADS_MAX to 256,
updated doc,
and added relevant test
 2017-07-13 10:17:23 -07:00
Yann Collet
052a95f77c fix : ZSTDMT_compress_advanced() correctly generates checksum 
when params.fParams.checksumFlag==1.
This use case used to be impossible when only ZSTD_compress() was available
 2017-07-11 17:18:26 -07:00
Yann Collet
ef0ff7fe7f zstdmt: removed margin for improved memory usage 2017-07-11 08:54:29 -07:00
Yann Collet
4616fad18b improved ZSTDMT_compress() memory usage 
does not need the input buffer for streaming operations

also : reduced a few tests time length
 2017-07-10 17:16:41 -07:00
Yann Collet
670b1fc547 optimized memory usage for ZSTDMT_compress() 
Previously, each job would reserve a CCtx right before being posted.
The CCtx would be "part of the job description",
and only released when the job is completed (aka flushed).
For ZSTDMT_compress(), which creates all jobs first and only join at the end,
that meant one CCtx per job.
The nb of jobs used to be == nb of threads,
but since latest modification,
which reduces the size of jobs in order to spread the load of difficult areas,
it also increases the nb of jobs for large sources / small compression level.
This resulted in many more CCtx being created.

In this new version, CCtx are reserved within the worker thread.
It guaranteea there cannot be more CCtx reserved than workers (<= nb threads).

To do that, it required to make the CCtx Pool multi-threading-safe :
it can now be called from multiple threads in parallel.
 2017-07-10 16:30:55 -07:00
Yann Collet
3510efb02d fix : custom allocator correctly propagated to child contexts 2017-07-10 14:21:40 -07:00
Yann Collet
ee3423d709 extended fuzzer MT memory tests 2017-07-10 14:09:16 -07:00
Yann Collet
88da8f1816 fix : propagate custom allocator to ZSTDMT though ZSTD_CCtx_setParameter() 
also : compile fuzzer with MT enabled
 2017-07-10 14:02:33 -07:00
Yann Collet
f9524cf366 added --memtest to fuzzer 2017-07-10 13:48:41 -07:00
Yann Collet
e32fb0c1fe added ZSTD_sizeof_CCtx() test 2017-07-10 12:29:57 -07:00
Paul Cruz
89190ef07d renamed pool.c to poolTests.c 2017-07-10 11:32:30 -07:00
Yann Collet
ed0243a63c removed zbufftest from list of all tests 2017-07-07 16:16:14 -07:00
Yann Collet
990449b89d new field : ZSTD_frameHeader.frameType 
Makes frame type (zstd,skippable) detection more straighforward.
ZSTD_getFrameHeader set frameContentSize=ZSTD_CONTENTSIZE_UNKNOWN to mean "field not present"
 2017-07-07 15:21:35 -07:00
Yann Collet
7758ed8458 fixed fullbench, part 2 2017-07-06 02:48:00 -07:00
Yann Collet
9b2c1acfc0 fixed fullbench 2017-07-06 02:22:57 -07:00
Yann Collet
27e883371d fixed wrong assert() condition 
A single job created by ZSTDMT_compress() can be < 256KB
if data to compress is < 256 KB
(in which case it is delegated to single thread mode)
 2017-07-04 19:33:16 -07:00
Yann Collet
2cb9774f5e more precise estimation of amount to flush at end of stream (single thread mode) 
also : can use DEBUGLEVEL variable in /tests
 2017-07-04 12:39:26 -07:00
Yann Collet
5051dd39ca Merge pull request #743 from facebook/fullbench 
compress_generic() automatic optimization opportunities
 2017-07-03 21:26:38 -07:00
Yann Collet
95c4a6e2c8 Merge pull request #745 from terrelln/libfuzzer 
[fuzz] Add libFuzzer targets
 2017-07-03 15:15:20 -07:00
Nick Terrell
bea0f0cfa0 [fuzz] Move from fuzz/ to tests/fuzz/ 2017-07-03 12:40:12 -07:00
cyan4973
4b26306cb8 blindfix : fullbench's one-time leak, detected by valgrind 2017-07-01 08:03:59 -07:00
cyan4973
c07e43c2b5 added --show-leak-kind=all to valgrind tests 2017-07-01 07:05:11 -07:00
cyan4973
b5bb7c6d95 fixed Visual compilation of fullbench-dll 2017-06-29 19:59:37 -07:00
Yann Collet
e7e5a8cef7 made fullbench compatible with multi-threading 
fullbench 61/62 measure speed of ZSTD_compress_generic with 2 threads
 2017-06-29 18:56:24 -07:00
Yann Collet
afb0aca739 zstreamtest : big tests are only enabled in 64-bits mode 
to avoid requesting too much memory in 32-bits mode during MT tests
 2017-06-29 18:19:09 -07:00
Yann Collet
2e84bec9ac updated fullbench to also measure ZSTD_compress_generic() 
will make it possible to visualize
optimization opportunity for ZSTD_e_end
 2017-06-29 13:03:10 -07:00
Yann Collet
7303ed5d74 minor : specify compression level in tags 2017-06-29 11:30:31 -07:00
Yann Collet
590937df20 Merge pull request #739 from facebook/refPrefix 
ZSTD_refPrefix
 2017-06-29 04:36:03 -07:00
Yann Collet
811deaea6f Merge pull request #736 from terrelln/cover-default-api 
[zdict] Make COVER the default algorithm
 2017-06-28 20:25:36 -07:00
Yann Collet
ad5f29918e Merge pull request #737 from facebook/advancedAPI2 
simplified API for *initStatic*()
 2017-06-28 20:25:22 -07:00
Yann Collet
62f7efc04a added a test to ensure ZSTD_refPrefix() doesn't impact the following compression job 2017-06-28 16:25:13 -07:00
Paul Cruz
7ac4724bd2 removed fnum from DISPLAY statements 2017-06-28 13:00:49 -07:00
Paul Cruz
e667d33b0b fixed generation of buggy test, corrected DISPLAY statements for errors 2017-06-28 12:19:37 -07:00
Yann Collet
33a6639039 fixed ZSTD_refPrefix with Multithread-enabled CCtx 2017-06-28 11:09:43 -07:00
Yann Collet
1fd2df9c2c fixed zstreamtest 
modifying compression parameters is not allowed after ZSTD_CCtx_loadDictionary()
but it is still allowed after ZSTD_refPrefix()
 2017-06-28 09:57:59 -07:00
Yann Collet
2e4274262d controlled dictMode 2017-06-27 17:09:12 -07:00
Yann Collet
b7372933b8 implemented ZSTD_refPrefix() 2017-06-27 15:49:12 -07:00
Yann Collet
fecc721fd9 added parameter ZSTD_p_refDictContent 2017-06-27 11:46:39 -07:00
Yann Collet
09a5bbe22e Merge pull request #735 from terrelln/xz-default 
[zstdcli] Support xz by default when liblzma is available
 2017-06-27 09:42:02 -07:00
Nick Terrell
5b7fd7c422 [zdict] Make COVER the default algorithm 2017-06-26 21:09:22 -07:00
Yann Collet
20eeb243d1 Merge pull request #729 from paulcruz74/corpus 
Corpus
 2017-06-26 17:47:28 -07:00
Yann Collet
dde10b23fe refactored ZSTD_estimateDStreamSize() 
now uses windowSize as argument.
Also : created ZSTD_estimateDStreamSize_fromFrame()
 2017-06-26 17:44:26 -07:00
Yann Collet
09ae03a570 ZSTD_estimateCDictSize_advanced() 
ZSTD_estimateCDictSize() now uses same arguments as ZSTD_createCDict()
ZSTD_estimateCDictSize_advanced() uses same arguments as ZSTD_createCDict_advanced()
 2017-06-26 16:47:32 -07:00
Yann Collet
0c9a915a28 ZSTD_estimateCStreamSize_advanced() 2017-06-26 16:02:25 -07:00
Yann Collet
31af8290d1 ZSTD_estimateCCtx_advanced() 
ZSTD_estimateCCtx() is now a "simple" function,
taking int compressionLevel as single argument.

ZSTD_estimateCCtx_advanced() takes a CParams argument,
which is both more complete and more complex to generate.
 2017-06-26 15:52:39 -07:00
Nick Terrell
6aeb50ea0d [zstdcli] Add unlzma and unxz symlinks 2017-06-26 11:24:36 -07:00
Paul Cruz
298fe9f23b added cli tests to test-all 2017-06-23 17:10:41 -07:00
Paul Cruz
3a295a91f8 added additional condition so large offsets into the dictionary are not generated past windowSize 2017-06-23 15:54:51 -07:00
Paul Cruz
2085375816 fixed bug detected by the API test 2017-06-23 13:44:24 -07:00
Paul Cruz
8cd134559d type warnings 2017-06-23 12:00:48 -07:00
Paul Cruz
4219acc60a fixed bus error bug 2017-06-23 11:22:29 -07:00
Yann Collet
ef269c1b68 Merge pull request #725 from facebook/advancedAPI2 
New Advanced API
 2017-06-23 09:50:47 -07:00
Yann Collet
cca1ed14db Merge branch 'advancedAPI2' of github.com:facebook/zstd into advancedAPI2 2017-06-23 00:13:03 -07:00
Yann Collet
32f546c763 zstreamtest : disabled multi-threading tests with --newapi --no-big-tests 
--no-big-tests is typically used in combination with qemu-user-static
qemu-user-static allocated 4 GB of RAM upfront.
On 2 GB VM, this can degenerate into a crash.
It's not a problem as long as memory is not used.
But with multi-threading enabled, memory fragmentation kicks in,
so the amoung of RAM effectively touched increases,
and can pass beyond the 2 GB limit of the VM.

In single-threaded mode, there is no such issue :
memory requirement is smaller, and remains well-located,
so very little fragmentation is expected.

This modification should make `qemu-arm-static zstreamtests --newapi --no-big-tests`
work fine on Travis CI.
 2017-06-23 00:09:02 -07:00
Paul Cruz
2e8cc6f12a added sizeof for clarity 2017-06-22 15:52:33 -07:00
Paul Cruz
6d7f442120 changed makefile test 2017-06-22 15:44:01 -07:00
Paul Cruz
b325a2e4db changed assignment 2017-06-22 15:36:28 -07:00
Paul Cruz
2935239544 added description for dictionary cli tests 2017-06-22 15:23:59 -07:00
Paul Cruz
97a8f89bec made changes to cli test so it runs properly 2017-06-22 15:13:41 -07:00
Paul Cruz
829eb29033 added cli test for decodecorpus inside tests/Makefile. Also changed calculation of offset 2017-06-22 14:43:44 -07:00
Paul Cruz
028fb9d01b added cli test case in Makefile 2017-06-22 13:53:39 -07:00
Paul Cruz
98751f69e7 should be updating seed whenever multiple files are generated 2017-06-22 10:23:36 -07:00
Paul Cruz
84cfa07d2d changed format of command to --use-dict=# 2017-06-22 10:04:14 -07:00
Yann Collet
f99c2c1a22 reduced --no-big-tests even more 
to pass tests on qemu-aarch64
 2017-06-21 23:35:58 -07:00
Paul Cruz
04094f37e9 fixed offset in this case os that it always goes past src start 2017-06-21 18:47:40 -07:00
Yann Collet
49f8459d11 fixed minor cast warning 2017-06-21 18:43:39 -07:00
Paul Cruz
0950b3159a more meaningful names for count variables 2017-06-21 18:30:27 -07:00
Paul Cruz
0b6eedeace malloc samples instead of static allocation 2017-06-21 18:24:19 -07:00
Yann Collet
4d3bdcf130 reduced CLevelMax for --no-big-tests 2017-06-21 18:20:02 -07:00
Paul Cruz
52a13abf3f removed comment regarding windowSize requirement 2017-06-21 18:13:52 -07:00
Paul Cruz
32e36c2d9a removed requirement that offset be less than windowSize 2017-06-21 18:00:47 -07:00
Yann Collet
bfc2f00080 --no-big-tests for zstreamtest 
Apply --no-big-tests for tsan tests
 2017-06-21 17:57:14 -07:00
Paul Cruz
eeff2d0e3c added const x2 2017-06-21 17:48:37 -07:00
Paul Cruz
04253e21bb added const 2017-06-21 17:48:01 -07:00
Paul Cruz
2ceaec1aad got rid of unnecessary casting to void* 2017-06-21 17:46:37 -07:00
Paul Cruz
ccae9ec807 added comment addressing use of bits in frame header descriptor 2017-06-21 17:43:21 -07:00
Yann Collet
dce789281b fixed : decompression of skippable frames in streaming mode 2017-06-21 15:53:42 -07:00
Yann Collet
c16748b137 added test cases for new command --list 2017-06-21 12:09:53 -07:00
Yann Collet
7bd1a2900e added ZSTD_dictMode_e to control dictionary loading mode 2017-06-21 11:50:33 -07:00
Paul Cruz
db3606e249 added test for files with no frame content size 2017-06-20 17:43:36 -07:00
Paul Cruz
acf0df678c fixed strange spacing 2017-06-20 15:41:43 -07:00
Paul Cruz
69bc4fab25 free the context object once done with decompression 2017-06-20 15:37:14 -07:00
Paul Cruz
ceb4f65620 allocate statically so we don't have to deal with freeing 2017-06-20 15:31:54 -07:00
Paul Cruz
a73c2a444a added tests with null files, changed condition to check that the file is more than 0 bytes 2017-06-20 14:33:08 -07:00
Paul Cruz
58c19b4202 spacing matters for test scripts 2017-06-20 14:14:53 -07:00
Yann Collet
ff8f83bd47 fixed fuzzer test 2017-06-20 12:17:32 -07:00
Paul Cruz
b07d0af2ba added additional tests for error detection 2017-06-20 11:54:44 -07:00
Paul Cruz
43ffcdde40 const dictOffset 2017-06-20 11:27:39 -07:00
Paul Cruz
1e0d125e76 const value 2017-06-20 11:15:26 -07:00
Paul Cruz
0034129270 made changes to accommodate single file use case 2017-06-20 11:07:38 -07:00
Paul Cruz
6a99de2dd8 change test to list info on .zst files 2017-06-20 10:45:06 -07:00
Paul Cruz
36e14b1963 added description to advanced usage, changed to use-dict 2017-06-20 10:34:34 -07:00
Paul Cruz
15102069a1 removed testing code from generation code 2017-06-20 10:25:16 -07:00
Paul Cruz
ff5589c091 added comments for clarity 2017-06-20 10:17:38 -07:00
Paul Cruz
551fb7ca05 changed error condition 2017-06-20 10:14:03 -07:00
Paul Cruz
b8237c6c66 refactoring for readability 2017-06-20 10:12:13 -07:00
Paul Cruz
6f17de2132 changed computation for readability 2017-06-20 09:50:28 -07:00
Paul Cruz
4a4f9ba262 const value that doesn't change 2017-06-19 17:46:21 -07:00
Paul Cruz
3a6856edca changed scope to avoid errors 2017-06-19 17:43:16 -07:00
Paul Cruz
7d2b5613b4 adhere to min dict size 2017-06-19 17:37:14 -07:00
Paul Cruz
ea2af1ffc4 changed dictionary to stay reasonable size during test 2017-06-19 17:34:50 -07:00
Paul Cruz
fdbb07283a added test to runTestMode 2017-06-19 17:29:15 -07:00
Paul Cruz
bdec7b8ce7 fixed for loop declaration, fixed test case 2017-06-19 17:18:43 -07:00