Commit Graph

1891 Commits (fb4451664125919e0870b256797f826bad576efc)

Author SHA1 Message Date
Nick Terrell 89dc856cae [pool] Fix formatting 2017-08-24 16:48:32 -07:00
Stella Lau 15fdeb9e41 Enforce nbThreads<=1 for estimateCCtxSize 2017-08-24 16:28:49 -07:00
Nick Terrell 376f435914 [dictBuilder] Set default compression level to 3 2017-08-24 16:21:05 -07:00
Stella Lau 2fbf0285b2 Fix interaction with ZSTD_setCCtxParameter() and cleanup 2017-08-24 11:25:41 -07:00
Stella Lau fd9bf42516 Fix forceWindow and dictMode setting for zstdmt jobs 2017-08-23 19:16:57 -07:00
Stella Lau bf3108fb50 Ensure zstdmt uses 'job version' of cctx parameters 2017-08-23 17:03:31 -07:00
Stella Lau 1c81f725ff Remove duplicated testing code 2017-08-23 15:47:15 -07:00
Stella Lau 64ce49426b Fix cstream compression level 2017-08-23 12:30:47 -07:00
Stella Lau 5bc2c1e982 Add prototype support for customMem with cctxParams 2017-08-23 12:03:30 -07:00
Yann Collet e9ce1208a1 Merge pull request #812 from facebook/longRangeFix
fixed extraordinary scenario where all fields use maximum nbBits
2017-08-23 11:35:28 -07:00
Yann Collet 74cde5a4d8 Merge pull request #813 from stellamplau/highbit32fix
Fix undefined behavior when srcSize==1
2017-08-23 11:31:06 -07:00
Stella Lau 6f1a21c7e9 Remove formatting-only changes 2017-08-23 10:24:19 -07:00
Dmitriy Titarenko 20f715d709 Fix displayLevel overflow 2017-08-23 15:56:15 +05:00
Stella Lau 11303778d0 Add function to make cctxParams from ZSTD_parameters 2017-08-22 14:53:13 -07:00
Yann Collet bd9c8ca146 Merge pull request #811 from terrelln/segmentSize
[cover] Fix end condition for small dictionary
2017-08-22 14:36:30 -07:00
Stella Lau 23fc0e41fa Remove 'opaque' naming from internal functions 2017-08-22 14:24:47 -07:00
Stella Lau 8fd1636776 Remove unused functions 2017-08-22 13:33:58 -07:00
Yann Collet 6b2b6a9bd5 fixed extraordinary scenario where all fields use maximum possible nb of bits simultaneously
can only happen if windowLog>=27  (level 22 --ultra)
2017-08-22 12:09:21 -07:00
Stella Lau e50ed1fa3a Fix undefined behavior when srcSize==1 2017-08-22 11:55:42 -07:00
Stella Lau 60e1bc617c Explicitly create a job cctxParam for multithreading 2017-08-21 15:39:37 -07:00
Stella Lau 5b956f4753 Comment out CCtx_param versions of CDict functions 2017-08-21 14:49:16 -07:00
Nick Terrell 29c2d9a4d0 [cover] Turn down notification for ZDICT subroutines 2017-08-21 14:28:31 -07:00
Nick Terrell 98de3f6847 [cover] Add dictionary size to compressed size 2017-08-21 14:23:17 -07:00
Yann Collet 78c3d16bf4 Merge pull request #809 from terrelln/dev
[cover] Fix divide by zero
2017-08-21 13:33:19 -07:00
Nick Terrell 9a54a315aa [cover] Convert score to U32 and check for zero 2017-08-21 13:30:07 -07:00
Stella Lau fd8a25786e Check parameters are valid in initCCtxParams 2017-08-21 13:23:35 -07:00
Stella Lau 1c0dbe81b1 Add documentation for CCtx_params 2017-08-21 13:18:00 -07:00
Nick Terrell d49eb40c03 [cover] Stop when segmentSize is less than d 2017-08-21 13:10:03 -07:00
Stella Lau 939f954285 Pass ZSTD_CCtx_params as const ptr when possible 2017-08-21 12:57:18 -07:00
Stella Lau 73c73bf16a Reduce code duplication in zstreamtest 2017-08-21 12:41:19 -07:00
Stella Lau 560b34f6d2 Return error code when initializing NULL cctxParams 2017-08-21 11:52:26 -07:00
Stella Lau 25be09c6b4 Set some parameters to zero before initializing cdict 2017-08-21 11:35:46 -07:00
Yann Collet 232d62b637 fixed a few headers that were too hastily copy/pasted during last license change 2017-08-21 11:24:32 -07:00
Nick Terrell f306d400c0 [cover] Fix divide by zero 2017-08-21 11:12:11 -07:00
Stella Lau 502031ca10 Use cctxParam version of createCDict internally 2017-08-21 11:00:44 -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 7db552676e reduced pool queue to 0 to save memory
fixed : pool performance when jobs are fires fast and queueSize==0
2017-08-19 15:07:54 -07:00
Stella Lau 6cee6e07e5 Add internal createCDict function 2017-08-18 22:48:31 -07:00
Stella Lau d775519296 Add cctxParam versions of internal functions 2017-08-18 17:37:58 -07:00
Yann Collet 32fb407c9d updated a bunch of headers
for the new license
2017-08-18 16:52:05 -07:00
Stella Lau 63b8c98531 Pass cctx parameters to MTCtx 2017-08-18 16:17:24 -07:00
Stella Lau 399ae013d4 Add function to apply cctx params 2017-08-18 13:01:55 -07:00
Stella Lau 81d89d82a6 Move nbThreads to cctx params 2017-08-18 12:08:57 -07:00
Stella Lau 2300c58a6f Move dictContentByRef to cctx params 2017-08-18 12:03:16 -07:00
Stella Lau b6cb2ed8cb Move dictMode to cctxParams 2017-08-18 11:43:31 -07:00
Stella Lau 97e27affcb Move compression level to cctx params 2017-08-18 11:20:08 -07:00
Stella Lau c0221124d5 Add function to set opaque parameters 2017-08-17 19:30:22 -07:00
Stella Lau 4169f49171 Add initialization/allocation functions for opaque params 2017-08-17 18:45:04 -07:00
Stella Lau ade95b8bed Add opaque interfaces for static initialization 2017-08-17 18:13:08 -07:00
Stella Lau 699f11b4f7 Create opaque parameter structure 2017-08-17 17:33:46 -07:00
Yann Collet f9e6590715 Merge pull request #796 from terrelln/is-error
[FSE][HUF] Inline error checks
2017-08-15 12:37:28 -07:00
Yann Collet 2dbcfc6994 Merge pull request #794 from terrelln/force-inline
[libzstd] Fix FORCE_INLINE macro
2017-08-15 12:03:44 -07:00
Nick Terrell 07c6ff588e [FSE][HUF] Inline error checks
Caught by Clang's optimization remarks.
2017-08-15 11:23:28 -07:00
Nick Terrell 565e925eb7 [libzstd] Fix FORCE_INLINE macro 2017-08-14 21:12:05 -07:00
Roman Gershman b9d4f4fb74 Fix ZSTD_estimateDStreamSize function after ZSTD_DStream and ZSTD_DCtx were merged 2017-08-13 13:29:42 +03:00
Nick Terrell 9ba97182d1 [CI] Add gcc7build test 2017-08-08 13:28:56 -07:00
Yann Collet d9f2893eb9 Merge pull request #782 from terrelln/dstSizeTooSmall
Fix compression failure on incompressible data
2017-08-07 14:52:02 -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
Nick Terrell 308047eb5d Fix compression failure on incompressible data
If the destination buffer is the minimum allowed size in
`ZSTD_compressSequences()` (2^17), then if the block isn't compressible
compression might fail with `dstSize_tooSmall`, when it should instead emit
a raw uncompressed block.

Additionally, `ZSTD_compressLiterals()` implicitly called
`ZSTD_noCompressLiterals()` if Huffman compression failed. Make that
explicit.
2017-08-07 11:45:24 -07:00
Stella Lau 73ba58955f Signal after finishing job when queueSize=0 2017-08-01 20:12:06 -07:00
Stella Lau 1d76da1d87 Replace marker with queueEmpty variable and update pool.h comment 2017-08-01 12:30:16 -07:00
Stella Lau 5adceeed01 Allow queueSize=0 in pool.c and update poolTests 2017-07-31 10:10:16 -07:00
Yann Collet e1222544be Merge pull request #753 from paulcruz74/adapt-approach-3
adaptive compression v1
2017-07-27 10:00:10 -07:00
Nick Terrell ae20d413da [libzstd] Fix CHECK_V_F macros 2017-07-25 12:52:01 -07:00
Yann Collet a90b16e150 Visual blind fix 2 2017-07-20 15:57:55 -07:00
Yann Collet b4d460f32c pool.c : blindfix for Visual warnings 2017-07-20 01:13:14 -07:00
Yann Collet 3974d2b38a blind fix for Windows Multithreading module
adds a fake 0 return value for mutex/cond init
2017-07-19 13:33:21 -07:00
Paul Cruz 6945b3c43d removed previous version of completion for compression 2017-07-19 11:51:50 -07:00
Yann Collet b71363b967 check pthread_*_init() success condition 2017-07-19 01:05:40 -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 77d67fb167 Merge pull request #766 from terrelln/real-block-split
[libzstd] Pull optimal parser state out of seqStore_t
2017-07-18 08:26:24 -07:00
Yann Collet 14c83b05c7 Merge pull request #765 from terrelln/real-block-split
[libzstd] Remove ZSTD_CCtx* argument of ZSTD_compressSequences()
2017-07-17 19:25:55 -07:00
Nick Terrell 7a28b9e4a3 [libzstd] Pull optimal parser state out of seqStore_t 2017-07-17 15:29:11 -07:00
Yann Collet 3381bf4b84 Merge pull request #764 from terrelln/real-block-split
[libzstd] Refactor ZSTD_compressSequences()
2017-07-17 14:46:01 -07:00
Nick Terrell e198230645 [libzstd] Remove ZSTD_CCtx* argument of ZSTD_compressSequences() 2017-07-17 12:27:24 -07:00
Nick Terrell 634f012420 [libzstd] Refactor ZSTD_compressSequences() 2017-07-17 11:36:11 -07:00
Paul Cruz 50ce4eaeb6 added error detection for pthread initialization, added compression completion measurement, fixed const values 2017-07-17 10:12:44 -07:00
Yann Collet 3b0cff3c33 fixed clang's -Wdocumentation 2017-07-13 18:58:30 -07:00
Yann Collet 2bd6440be0 pinned down error code enum values
Note : all error codes are changed by this new version,
but it's expected to be the last change for existing codes.

Codes are now grouped by category, and receive a manually attributed value.
The objective is to guarantee that
error code values will not change in the future
when introducing new codes.
Intentionnal empty spaces and ranges are defined
in order to keep room for potential new codes.
2017-07-13 17:12:16 -07:00
Nick Terrell 830ef4152a [libzstd] Increase granularity of FSECTable repeat mode 2017-07-13 12:45:39 -07:00
Yann Collet d985319337 Merge pull request #759 from terrelln/real-block-split
[libzstd] Pull CTables into sub-structure
2017-07-13 10:24:19 -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 132e6efd76 switched ZSTDMT_compress_advanced() last argument to overlapLog
overlapRLog (== 9 - overlapLog) was a bit "strange"
as all other public entry points use overlapLog
2017-07-13 02:22:58 -07:00
Yann Collet 4e77f7761d clarified comment on ZSTD_p_contentSizeFlag 2017-07-13 02:09:07 -07:00
Nick Terrell de0414b736 [libzstd] Pull CTables into sub-structure 2017-07-12 19:49:19 -07:00
Yann Collet 8ef666c325 slightly increased buffer pool, to cover normal "full load" scenarios
2 buffers per active worker
+ 1 buffer for input loading
+ 1 buffer for "next input" when submitting current one
+ 1 buffer stuck in queue
2017-07-12 14:23:34 -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 2a62f48bf4 release input buffers from inside worker thread
buffers are released sooner, which makes them available faster for next job.
=> decreases total nb of buffers necessary
2017-07-11 15:56:40 -07:00
Yann Collet 57236184af buffer pool : all buffers have same size
to reduce memory fragmentation.
They can be used for in or out, interchangeably.
2017-07-11 15:17:25 -07:00
Yann Collet 34b2b95631 zstdmt : intermediate outBuffer allocated from within worker
reduces total amount of memory needed,
since jobs in queue do not have an outBuffer pre-reserved now
2017-07-11 14:59:10 -07:00
Yann Collet 16261e6951 buffer pool can be invoked from multiple threads 2017-07-11 14:14:07 -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 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 e32fb0c1fe added ZSTD_sizeof_CCtx() test 2017-07-10 12:29:57 -07:00
Yann Collet 40156a4967 bumped version nb to v1.3.1 2017-07-08 04:55:09 -07:00
Yann Collet 0f4fc6c20a fixed several conversion warnings 2017-07-07 17:13:12 -07:00
Yann Collet 9bde061a0b fixed minor Visual compilation limitation 2017-07-07 16:14:17 -07:00
Yann Collet 593d517ebf fixed minor cast warning 2017-07-07 16:09:47 -07:00
Yann Collet ead4dd48f6 new field frameHeader.headerSize 2017-07-07 15:51:24 -07:00
Yann Collet 46396523c0 ZSTD_getFrameHeader : control of windowSize limits is delegated to caller
Extracting frame header is a separate operation.
It's now possible to get frame header, whatever the window size set in it.
2017-07-07 15:32:12 -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 e622330a3b extended frameHeader.windowSize to unsigned long long 2017-07-07 14:19:01 -07:00
Yann Collet f04deff4fc fixed #718, reported by @GregSlazinski, solution suggested by @mcmilk 2017-07-06 01:42:46 -07:00
Yann Collet d75c0e71c4 minor code refactoring 2017-07-05 18:10:07 -07:00
Yann Collet 49af41820d clarified status of zstdmt_compress.h API 2017-07-05 17:21:13 -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 6383372dec fixed : 0-copy in NULL is UB 2017-07-04 10:36:41 -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 2de2396a36 refactor ZSTDMT_compress() 2017-07-03 16:23:36 -07:00
Yann Collet 2084b041f4 fixed comments 2017-07-03 15:52:19 -07:00
Yann Collet 5a77361595 fixed wrong function name in comment 2017-07-03 15:21:24 -07:00
Nick Terrell c80fc50a8d [libzstd] Fix memcpy() on potential NULL source
* `ZSTD_decompressStream_generic()` `ip` may be `NULL` for one of the calls
  to `memcpy()`
* Assert the source is not `NULL` for calls to `memcpy()` where I believe
  the source should not be `NULL`.
2017-07-03 12:31:55 -07:00
Yann Collet 2485f88bf8 fixed legacy version init bug 2017-07-01 09:09:34 -07:00
cyan4973 21fdf97e00 Merge branch 'dev' into fullbench 2017-07-01 07:01:08 -07:00
cyan4973 1bafe393e4 fix : ZSTDMT_compressStream_generic() can accept NULL input
also : converge implementations towards new version of ZSTDMT_compressStream_generic()
2017-07-01 06:59:24 -07:00
Yann Collet 58bd0e70fc fixed : dictionary compression with new advanced API in Multi-threading mode 2017-06-30 16:01:02 -07:00
Yann Collet d8b33a598d Optimized ZSTDMT single-pass mode speed on large sources
by ensuring job sizes remain "not too large"
2017-06-30 15:44:57 -07:00
Yann Collet d5c046c609 implemented shortcut for zstd_compress_generic() in MT mode
added ZSTDMT_compress_advanced() API
2017-06-30 14:51:01 -07:00
Yann Collet 7f40bb1c39 Merge pull request #742 from stellamplau/stack-space
Reduce stack usage of HUF_readDTableX4 and HUF_readDTableX2
2017-06-30 14:50:23 -07:00
Stella Lau 32df49e9f8 Fix typo 2017-06-30 12:56:24 -07:00
Stella Lau b0513b519c Add comment to HUF_DECOMPRESS_WORKSPACE_SIZE 2017-06-30 12:53:56 -07:00
Stella Lau 4c71f59c77 Clarify typedef of rankVal_t and rankValCol_t 2017-06-30 09:52:20 -07:00
Stella Lau 28f711ef95 Rename ALIGN and ALIGN_MASK to HUF_ALIGN and HUF_ALIGN_MASK 2017-06-30 09:38:11 -07:00
Stella Lau 70ad6829e7 Delegate HUF_decompress4X_hufOnly to workspace version 2017-06-29 16:22:32 -07:00
Stella Lau 104c4d57c1 Fix bitshift error 2017-06-29 15:40:49 -07:00
Yann Collet a3d9926c40 compression optimization opportunity
switch to single-pass mode directly into output buffer
when outputSize >= ZSTD_compressBound(inputSize).
Speed gains observed with fullbench (~+15% on level 1)
2017-06-29 14:44:49 -07:00
Stella Lau fedc94de8c Fix pointer casting warning 2017-06-29 13:04:15 -07:00
Stella Lau c6a5275a28 Fix alignment warnings with pointer casting 2017-06-29 12:39:34 -07:00
Stella Lau 99e315999c Reduce stack usage of HUF_readDTableX4 and HUF_readDTableX2 2017-06-29 11:49:59 -07:00
Yann Collet 97f2bf66da minor : fix typo 2017-06-29 11:31:40 -07:00
Yann Collet acbef3decd ZSTD_getFrameContentSize() is promoted to "stable" status 2017-06-29 05:19:51 -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 037466245f refactor ZSTD_check_compressionLevel_monotonicIncrease_memoryBudget()
use less macro statements
the initial version was meant to work with STATIC_ASSERT
but since it doesn't work and needs assert()
it's possible to rewrite it using normally compiled code
which is better for compiler.

Downside : the error message is less precise.
There is a DEBUGLOG(3,) to compensate.
2017-06-28 20:24:08 -07:00
Yann Collet 2bf428df45 Merge branch 'advancedAPI2' into refPrefix 2017-06-28 16:35:49 -07:00
Yann Collet 1ca76039af fixed -Wdeclaration-after-statement 2017-06-28 15:40:21 -07:00
Yann Collet 813535105b added function to control monotonic memory budget increase of ZSTD_defaultCParameters[0]
It's a runtime test, based on assert(),
played once, on first ZSTD_getCParams() usage,
when ZSTD_DEBUG is enabled.
2017-06-28 15:34:56 -07:00
Yann Collet adbe74a8ac adjusted compression levels to guarantee a monotonically increasing memory budget 2017-06-28 13:22:37 -07:00
Yann Collet 33a6639039 fixed ZSTD_refPrefix with Multithread-enabled CCtx 2017-06-28 11:09:43 -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 7d3816183f exposed ZSTD_MAGIC_DICTIONARY in zstd.h
makes it easier to explain ZSTD_dictMode
2017-06-27 13:50:34 -07:00
Yann Collet fecc721fd9 added parameter ZSTD_p_refDictContent 2017-06-27 11:46:39 -07:00
Nick Terrell 5b7fd7c422 [zdict] Make COVER the default algorithm 2017-06-26 21:09:22 -07:00
Yann Collet c7fb884eea fixed minor conversion warning 2017-06-26 18:02:23 -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
Yann Collet ef269c1b68 Merge pull request #725 from facebook/advancedAPI2
New Advanced API
2017-06-23 09:50:47 -07:00
Yann Collet ecb0f46866 add controls over streaming buffers 2017-06-21 17:25:01 -07:00
Yann Collet dce789281b fixed : decompression of skippable frames in streaming mode 2017-06-21 15:53:42 -07:00
Yann Collet 204b6b7ef6 fixed streaming buffered allocation with CDict compression 2017-06-21 15:13:00 -07:00
Yann Collet 1e4129b27b fixed dangling pointer risk, detected by @terrelln 2017-06-21 13:26:10 -07:00
Yann Collet 83095970e6 free cdictLocal faster, suggested by @terrelln 2017-06-21 12:26:40 -07:00
Yann Collet 7bd1a2900e added ZSTD_dictMode_e to control dictionary loading mode 2017-06-21 11:50:33 -07:00
Yann Collet 9c56b12938 Merge pull request #723 from paulcruz74/dev
Adding zstd -l
2017-06-21 09:41:55 -07:00
Yann Collet e51d51bdf7 fixed memcpy() overlap 2017-06-20 17:44:55 -07:00
Yann Collet 466f92eaa6 removed one useless streaming compression stage, detected by @terrelln 2017-06-20 16:25:29 -07:00
Yann Collet c3bce24ef4 fixed potential dangling pointer, detected by @terrelln 2017-06-20 16:09:11 -07:00
Yann Collet 78b8234554 fixed comments, following suggestion by @terrelln 2017-06-20 14:26:48 -07:00
Yann Collet b44ab82f7a ensure new ZSTD_strategy starts at value 1 2017-06-20 14:11:49 -07:00
Yann Collet c08e649e95 first implementation of bench.c with new API ZSTD_compress_generic()
Doesn't speed optimize this buffer-to-buffer scenario yet.
Still internally defers to streaming implementation.

Also : fixed a long standing bug in ZSTDMT streaming API.
2017-06-19 18:25:35 -07:00
Yann Collet 695a0a3449 fixed IA64 compilation error, by @mcmilk 2017-06-19 15:27:30 -07:00
Yann Collet fe234bf48b fix attempts : fullbench for VS2008 2017-06-19 15:23:19 -07:00
Nick Terrell 55f9cd4942 [libzstd] Fix UBSAN failure 2017-06-19 15:12:28 -07:00
Yann Collet bf99150be3 update new api presentation in zstd.h and manual 2017-06-19 12:56:25 -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
Yuri 92bafda406 INSTALL_DATA instead of INSTALL_LIB for libzstd.a
INSTALL_LIB can be passed -s flag to strip symbols. Static libraries should not be stripped, only dynamic ones should be stripped.
2017-06-17 00:23:41 -07:00
Yann Collet 381e66cfbd added ZSTD_clampCParams()
now ZSTD_adjustCParams() is always successful,
it always produces a valid CParams
2017-06-16 17:34:54 -07:00
Yann Collet aee916e37c fixed +/-1 error for pledgedSrcSizePlusOne 2017-06-16 17:02:35 -07:00
Yann Collet d3de3d51a3 fix attempt 2 : Visual sign conversion warning 2017-06-16 16:51:33 -07:00
Yann Collet 944be54774 fixed attempt : minor Visual sign conversion warning 2017-06-16 14:05:01 -07:00
Yann Collet b26728c9c8 added ZSTD_startNewCompression() 2017-06-16 14:00:46 -07:00
Yann Collet a0ba849fe6 changed frameContentSize field to pledgedSrcSizePlusOne
pledgedSrcSize is proper : it's a promise, not yet fulfilled.
It will be controlled at the end.

PlusOne is meant to have 0 (default) == unknown
2017-06-16 13:29:17 -07:00
Yann Collet 2cf7755da7 fix : pledgedSrcSize correctly reset to unknown in "continue" mode 2017-06-16 12:34:41 -07:00
Yann Collet 9e73f2f320 fix : correctly reset pledgedSrcSize to unknown status
when starting a new compression with an existing context
2017-06-16 12:24:01 -07:00
Yann Collet 33873f0e74 fixed : new advanced AIP : setting nbThreads to the same value > 1 2017-06-16 12:04:21 -07:00
Yann Collet 559ee82e90 fixed : calling ZSTD_compress_generic() to end-flush a stream in multiple steps 2017-06-16 11:58:21 -07:00
Yann Collet bd18c885a3 added ZSTD_CCtx_reset 2017-06-16 10:17:50 -07:00
Yann Collet cc9f9b7f4c protection : ZSTD_CONTENTSIZE_UNKNOWN automatically disables contentSizeFlag 2017-06-15 18:17:34 -07:00
Yann Collet 05ae4b2190 added protection : MT incompatible with Static allocation 2017-06-15 18:03:34 -07:00
Paul Cruz a9b77c83e5 cleaning up code for analyzing frames 2017-06-15 14:13:28 -07:00
Yann Collet f129fd3970 disabled MT code path when ZSTD_MULTITHREAD is not defined 2017-06-11 18:46:09 -07:00
Yann Collet 23aace9778 added control stage to MT mode 2017-06-11 18:32:36 -07:00
Yann Collet f35e2de61c linked newAPI to ZSTDMT 2017-06-05 18:32:48 -07:00
cyan4973 c59162e053 minor fix for -Wdocumentation 2017-06-05 00:12:13 -07:00
cyan4973 8bcbf42617 fixed g++ prototype mismatch 2017-06-04 23:52:00 -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 58e8d793e1 made debug definitions common within zstd_internal.h 2017-06-02 18:20:48 -07:00
Yann Collet 8ddf4c22d5 fixed missing initialization 2017-06-02 17:16:49 -07:00
Yann Collet 33a7e679e5 significant zlib wrapper code refactoring
code indentation
variable scope and names
constify

Only coding style changes.
The logic should remain the same.
2017-06-02 17:10:49 -07:00
Yann Collet 4effccbf56 zlib_wrapper's uncompress() uses ZSTD_isFrame() for routing
more generic and safer than using own routing for magic number comparison
2017-06-02 14:27:11 -07:00