Commit Graph

637 Commits (dce386f658bac7ddb35d279bc7a929ee7da9b0cd)

Author SHA1 Message Date
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
Paul Cruz 23098b53e8 wrote a test for dictionary corpus 2017-06-19 17:13:00 -07:00
Paul Cruz 7a26390989 changing for loop declaration 2017-06-19 16:39:57 -07:00
Paul Cruz 147ef05f12 for loop declaration not allowed 2017-06-19 16:38:51 -07:00
Paul Cruz 791352ad0e scope change 2017-06-19 16:32:38 -07:00
Paul Cruz 365e265a8e changed scope so that warning disappears 2017-06-19 16:28:40 -07:00
Paul Cruz f4f928595b changed scope to get rid of mixed code/variables warning 2017-06-19 16:27:05 -07:00
Paul Cruz 7ea025cc7d added in struct to keep functions more orderly 2017-06-19 16:23:00 -07:00
Paul Cruz b91b810c64 made some small changes to dictInfo struct and initDictInfo 2017-06-19 16:05:05 -07:00
Paul Cruz 1ee4f6b36c cleaning up code 2017-06-19 15:55:01 -07:00
Paul Cruz 2a52d72712 added comment to anotate decompressed error code 2017-06-19 14:21:35 -07:00
Paul Cruz 73ebb646d8 small stylistic changes 2017-06-19 14:20:35 -07:00
Paul Cruz 34f4e5cab2 changed if statement styling 2017-06-19 14:07:56 -07:00
Paul Cruz 1fc1a35dc4 added calls to free to match calls to malloc, made some stylistic changes, added init function for new struct 2017-06-19 14:02:27 -07:00
Paul Cruz 8f4fa43fe8 got files to decompress 2017-06-19 13:21:50 -07:00
Yann Collet 688952062b minor declaration statement warning fix 2017-06-19 11:53:42 -07:00
Yann Collet d7a3bffba9 new api : setting compression parameters is refused if a dictionary is already loaded 2017-06-19 11:53:01 -07:00
Paul Cruz da4ddc1f76 fixed decompression so that it uses compressed version 2017-06-19 11:40:45 -07:00
Paul Cruz 33467add60 made changes so that HUF_writeCTable no longer fails 2017-06-19 11:27:50 -07:00
Yann Collet ed1d039127 newapi fuzzer tests : random flush orders in main loop 2017-06-19 11:07:33 -07:00
Paul Cruz 09ac51b56b small style changes 2017-06-19 09:24:38 -07:00
Yann Collet f5deae8a67 new api fuzzer tests : frame parameters are randonly set 2017-06-18 23:41:38 -07:00
Yann Collet ea3630a889 new api fuzzer set : dictionary is randomly set 2017-06-18 23:31:55 -07:00
Yann Collet 8dee0ec99e new api fuzzer tests : compression parameters are randomly set 2017-06-18 23:25:15 -07:00
Yann Collet bd05b19713 removed macro CLAMP from decodecorpus
never used,
and would duplicate with CLAMP from zstd_compress.c
2017-06-16 18:16:27 -07:00
Yann Collet 01743a36e7 fuzzer tests for new API 2017-06-16 17:56:41 -07:00
Paul Cruz 2f30433cd7 fixing general style 2017-06-15 18:06:32 -07:00
Paul Cruz ddd1ab710c added tests in playTest.sh 2017-06-15 16:53:03 -07:00
Paul Cruz 623b8fce85 add print statements for debugging and change malloc with updated size 2017-06-15 11:37:24 -07:00
Paul Cruz 52934fbfc8 added print statements for debugging, fixed first segfault 2017-06-15 09:47:29 -07:00
Paul Cruz 03a208e27c changed samples to geometric distribution so that it is huffman compressible 2017-06-14 18:06:16 -07:00
Paul Cruz d93207a79f changed dictionary from using fixed amount of bytes for the header / entropy tables 2017-06-14 17:23:56 -07:00
Paul Cruz 664ed05ff6 changed randomly generated samples to randomly selected from the dictionary content 2017-06-14 16:42:51 -07:00
Paul Cruz 3b0e24c06b added error message to catch case where size not given 2017-06-14 12:04:22 -07:00
Paul Cruz aa95bc0a5f code refactoring and adding some print statements for debugging 2017-06-14 10:54:47 -07:00
Paul Cruz 07cfc975bb debugging error with finalizeDictionary() not writing dictionary properly 2017-06-13 17:27:02 -07:00
Paul Cruz 8dd621f788 changed makefile to include zdict functions, wrote out dictionary to path 2017-06-13 14:19:35 -07:00
Paul Cruz f35f252e36 added code to generate dictionary using finalizeDictionary 2017-06-13 11:54:43 -07:00
Paul Cruz 37e1b1488b removed previous double free crash, used new crash function 2017-06-09 13:57:18 -07:00
Paul Cruz be9b0ae627 added error function for different compilation modes 2017-06-09 13:41:34 -07:00
Paul Cruz 11c3987baf added code to extend the offset when a dictionary is detected 2017-06-09 09:48:56 -07:00
Paul Cruz 125ed59968 made sure dictionary ID was being written in the frame header of each file 2017-06-08 17:27:15 -07:00
Paul Cruz 233ee5334e set the lower bits of frame header descriptor if dictionary is needed 2017-06-08 17:11:33 -07:00
Paul Cruz c2d909e396 added code for generating dictionary/test files randomly. Still need to make sure dictionary ID matches 2017-06-08 17:06:30 -07:00
Yann Collet 8c910d2097 updated ZSTDMT streaming API
ZSTDMT streaming API is now similar
and has same capabilites as single-thread streaming API.
It makes it easier to blend them together.
2017-06-03 01:15:02 -07:00
Yann Collet cdf7e82222 Added ZSTD_initStaticCDict() 2017-05-25 18:05:49 -07:00
Yann Collet 57827f906f added ZSTD_initStaticDDict() 2017-05-25 15:44:06 -07:00
Yann Collet 25989e361c updated ZSTD_estimate?DictSize() to pass parameter byReference
resulting ?Dict object is smaller when created byReference.
Seems better than a documentation note.
2017-05-25 15:07:37 -07:00
Yann Collet 0fdc71c3dc added ZSTD_initStaticDCtx() 2017-05-24 17:41:41 -07:00
Yann Collet c7fe262dc9 added ZSTD_initStaticCCtx()
makes it possible to statically or externally allocate CCtx.
static CCtx will only use provided memory area,
it will never resize nor malloc.
2017-05-23 13:20:41 -07:00
Yann Collet 60a557e7fd fixing symbol.c test
I believe it would be better to rely on fuzzer tests compiled with dll
2017-05-19 11:27:43 -07:00
Yann Collet fa3671eac7 changed ZSTD_BLOCKSIZE_ABSOLUTEMAX into ZSTD_BLOCKSIZE_MAX
Also :
change ZSTD_getBlockSizeMax() into ZSTD_getBlockSize()
created ZSTD_BLOCKSIZELOG_MAX
2017-05-19 10:51:30 -07:00
Yann Collet 009d604e00 ZSTD_compress_generic() supports multiple successive frames
also : clarified streaming API implementation
2017-05-19 10:17:59 -07:00
Yann Collet 0bdb575c31 Merge branch 'dev' into advancedAPI2 2017-05-16 16:32:29 -07:00
Yann Collet 2d4d31c18a removed gcc compilation flag -Wbad-function-cast
It makes it more difficult to directly cast the result of a function,
requiring to store the result in an intermediate variable.
It does not necessarily help readability,
and this restriction can be difficult to overcome in some constructions,
like some macros.

also : fixed minor Visual conversion warnings in datagencli.c
2017-05-16 11:34:38 -07:00
Yann Collet 83d0c764dc added several compilation flags 2017-05-15 17:15:46 -07:00
Yann Collet a5ffe3d370 pushed enum values for strategy by one (ZSTD_fast==1)
this makes it possible to use `0` to mean:
"do not change strategy"
2017-05-12 16:29:19 -07:00
Nick Terrell 5f2c7213c7 Merge remote-tracking branch 'upstream/dev' into btopt
* upstream/dev: (305 commits)
  added test for ZSTD_estimateCStreamSize()
  changed variable name, for clarity
  fixed ZSTD_estimateCStreamSize()
  shortened ZSTD_createCStream_Advanced()
  fixed symbols test
  added ZSTD_estimateDStreamSize()
  changed name frameParams into frameHeader
  regroup memory usage function declarations
  separated ZSTD_estimateCStreamSize() from ZSTD_estimateCCtxSize()
  bumped version number
  added ZSTD_estimateCDictSize() and ZSTD_estimateDDictSize()
  Updated ZSTD_freeCCtx()
  updated ZSTD_estimateCCtxSize()
  Updated ZSTD_sizeof_CCtx()
  merged CCtx and CStream as a single same object
  cli : -d and -t do not stop after a failed decompression
  added dev branch CircleCI badge
  added dev branch Appveyor badge
  keep dev branch status only
  creates a binary archive without the `programs` directory
  ...
2017-05-10 16:49:58 -07:00
Yann Collet 30ab64e21d added test for ZSTD_estimateCStreamSize() 2017-05-10 11:30:19 -07:00
Yann Collet 461a9cc7c6 fixed symbols test 2017-05-09 16:53:09 -07:00
Yann Collet f16f4497ca added ZSTD_estimateDStreamSize() 2017-05-09 16:18:17 -07:00
Yann Collet 542c9dfcf8 changed name frameParams into frameHeader
ZSTD_frameParams => ZSTD_frameHeader
ZSTD_getFrameParams() -> ZSTD_getFrameHeader()

The new naming is more distinctive from ZSTD_frameParameters,
which is used during compression.

ZSTD_frameHeader is clearer in its intention to described frame header content.
It also implies we are decoding a ZSTD frame, hence we are at decoding stage.
2017-05-09 15:46:07 -07:00
Yann Collet fa8dadb294 separated ZSTD_estimateCStreamSize() from ZSTD_estimateCCtxSize()
for clarity
2017-05-08 18:24:16 -07:00
Yann Collet a1d6704d7f added ZSTD_estimateCDictSize() and ZSTD_estimateDDictSize()
it complements ZSTD_estimateCCtxSize()
for the special case of ZSTD_initCStream_usingDict()
2017-05-08 17:51:49 -07:00
Yann Collet fc5145955a updated ZSTD_estimateCCtxSize()
added a parameter streaming,
to estimate memory allocation size
when the CCtx is used for streaming (CStream).

Note : this function is not able to estimate
memory cost of a potential internal CDict
which can only happen when starting with ZSTD_initCStream_usingDict()
2017-05-08 17:07:59 -07:00
Yann Collet 0be6fd3429 merged CCtx and CStream as a single same object
To be changed : ZSTD_sizeof_CCtx(), ZSTD_estimateCCtxSize()
2017-05-08 16:08:01 -07:00
Yann Collet 01a1abfdb5 cli : -d and -t do not stop after a failed decompression
The problematic srcfile will be named on console/log,
but decompression/test will continue onto next file in the list.
2017-05-05 19:15:24 -07:00
Nick Terrell f376d47c11 [CLI] Switch dictionary builder on CLI to cover 2017-05-02 11:18:27 -07:00
Yann Collet a51cab6e68 Merge pull request #678 from facebook/apiChange
Breaking API Change around CDict
2017-04-28 10:02:45 -07:00
Yann Collet 36e79a1a1f tests : -g is part of DEBUGFLAGS 2017-04-27 17:29:40 -07:00
Yann Collet c6915429f2 shortened Appveyor release tests
fuzzer supports time suffix `s` for "seconds"
2017-04-27 16:24:53 -07:00
Yann Collet a92cbb7004 Added a secondary test, checking dictID presence after setting noDictIdFLag=1 2017-04-27 15:08:56 -07:00
Yann Collet 7d283cdfa2 added test for ZSTD_initCStream_usingCDict_advanced() 2017-04-27 14:48:34 -07:00
Yann Collet 2f73427d35 added test for ZSTD_compress_usingCDict_advanced() 2017-04-27 14:39:39 -07:00
Yann Collet 7321345fd2 fixed another VS2008 init error 2017-04-27 14:19:34 -07:00