AuroraMiddleware/zstd
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2cff8df1a2
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1732 Commits

Author SHA1 Message Date
senhuang42
2cff8df1a2 Pull block compression out of main compressSequences() function 2020-11-16 10:49:16 -05:00
senhuang42
cfced9344a Implement ZSTD_updateSequenceRange 2020-11-16 10:49:16 -05:00
senhuang42
b116e1f211 Modify SequenceRange to have posInSequence 2020-11-16 10:49:16 -05:00
senhuang42
d99b675112 Add function definition for sequenceRange updater 2020-11-16 10:49:16 -05:00
senhuang42
74e95c05cc Add ZSTD_SequenceRange to count ranges in array of ZSTD_Sequence 2020-11-16 10:49:16 -05:00
senhuang42
89f3848310 Add support for repcodes 2020-11-16 10:49:16 -05:00
senhuang42
3e930fd044 Code cleanup, add debuglog statments 2020-11-16 10:49:16 -05:00
senhuang42
086513b5b9 Implement first pass at compressSequences() 2020-11-16 10:49:16 -05:00
senhuang42
a9327b1e9b Add initial function prototype for ZSTD_compressSequences_ext (to be renamed later) 2020-11-16 10:33:35 -05:00
senhuang42
9d936d61d2 Reduce number of memcpy() calls 2020-11-13 19:43:30 -05:00
senhuang42
be4ac6c5bc Use existing repcode update function to implement updates 2020-11-12 16:51:12 -05:00
senhuang42
674c9b9235 Add in proper block repcode histories 2020-11-12 15:34:37 -05:00
senhuang42
06c7f14066 Let block reps persist 2020-11-12 12:24:44 -05:00
senhuang42
396275068c Fix incorrect repcode setting 2020-11-12 11:57:01 -05:00
senhuang42
1a8af0de73 Improve unit test 2020-11-12 11:09:09 -05:00
senhuang42
4d4fd2c55f Overhaul repcode handling logic 2020-11-12 10:59:35 -05:00
sen
f62edf0fe9
Merge pull request #2381 from senhuang42/expand_sequence_extraction_api 
Add enum to define ZSTD_Sequence type and update sequence extraction API
 2020-11-06 13:00:31 -05:00
senhuang42
7d1dea070c Update unit tests 2020-11-06 11:10:37 -05:00
senhuang42
779df995c6 Implement mergeGeneratedSequences() 2020-11-06 10:55:46 -05:00
senhuang42
51abd58208 Rename getSequences() to generateSequences() 2020-11-06 10:53:22 -05:00
Luke Pitt
eac309c71b Add ZSTD_getDictID_fromCDict function to experimental section 2020-11-04 11:37:37 +00:00
senhuang42
f782cac3d4 Change block delimiter removing to linear time approach 2020-11-02 17:06:20 -05:00
senhuang42
3434049c1f Use ZSTD_memmove() instead of memmove() 2020-11-02 11:43:19 -05:00
senhuang42
d4d0346b40 Update name of enum, clarify documentation 2020-11-02 11:38:17 -05:00
senhuang42
e6178f837f Revert unnecessary seqCollector adjustment 2020-11-02 10:59:20 -05:00
senhuang42
e8501e00b8 Fix incorrect index increment in merge algorithm 2020-11-02 10:58:41 -05:00
senhuang42
a36fdada57 Add algorithm to remove all delimiters 2020-11-02 10:46:52 -05:00
senhuang42
435a3a0428 Update seqCollector definition 2020-11-02 10:19:26 -05:00
senhuang42
3327932609 Update ZSTD_getSequences function signature 2020-11-02 10:17:59 -05:00
Nick Terrell
7205e609a9
Merge pull request #2354 from terrelln/stable-buffer 
Add ZSTD_c_stable{In,Out}Buffer and optimize when set
 2020-10-30 15:06:56 -07:00
sen
c37c714ef1
Merge pull request #2376 from senhuang42/clarify_sequence_extraction_api 
Refine external ZSTD_Sequence API
 2020-10-30 15:47:25 -04:00
Nick Terrell
d4e021fe35 [lib] Avoid allocating the input buffer when ZSTD_c_stableInBuffer is set 
We don't use it when we have a stable input buffer, so don't allocate
it. I had to slightly modify `ZSTD_copyCCtx()` by storing the
`ZSTD_buffered_policy_e` in the `ZSTD_CCtx`, since `inBuffSize > 0` is
no longer the correct signal for the buffered mode.
 2020-10-30 10:55:34 -07:00
Nick Terrell
24f72789e2 [lib] Skip the input window buffer when ZSTD_c_stableInBuffer is set 
Compress directly from the `ZSTD_inBuffer`. We still allocate the input
buffer. A following commit will remove that allocation.
 2020-10-30 10:55:34 -07:00
Nick Terrell
6bd6b6f7d3 [cwksp] Return NULL when 0 bytes are requested 
This ensures that the buffer is never used.
 2020-10-30 10:55:34 -07:00
Nick Terrell
fcf81cee5e [lib] Avoid allocating output buffer when ZSTD_c_stableOutBuffer is set 
We compress directly to the `ZSTD_outBuffer` so we don't need to
allocate it.
 2020-10-30 10:55:34 -07:00
Nick Terrell
6d5dc93d4e [lib] Compress directly into output when ZSTD_c_stableOutBuffer is set 
When we have a stable output buffer always compress directly into the
`ZSTD_outBuffer`. We are allowed to return `dstSizeTooSmall`.
 2020-10-30 10:55:34 -07:00
Nick Terrell
987cb4ca6a [lib] Take the shortcut when ZSTD_c_stableOutBuffer is set 
When we have a stable output buffer take the single-pass shortcut.
It is okay to return `dstSizeTooSmall` if the output buffer isn't
big enough, because we know it will never grow.
 2020-10-30 10:55:34 -07:00
Nick Terrell
809b2f2071 [lib] Set ZSTD_c_stable{In,Out}Buffer in ZSTD_compress2() 
Sets these parameters in ZSTD_compress2() then resets them to their
orignal values after the compression call.

An alternative design could be to add a flush mode `ZSTD_e_singlePass`
which implies `ZSTD_c_stable{In,Out}Buffer` but only for a single
compression call, by directly setting the applied parameters. I've opted
for the smaller change, but this is open for discussion.
 2020-10-30 10:55:34 -07:00
Nick Terrell
c74be3f6de [lib] Validate buffers when ZSTD_c_stable{In,Out}Buffer is set 
Adds the validation of the input/output buffers only. They are still
unused.
 2020-10-30 10:55:34 -07:00
Nick Terrell
e3e0775cc8 [API] Add ZSTD_c_stable{In,Out}Buffer parameters 
This commit adds the parameters and sets the value in the CCtxParams
but it does not do anything with the value.
 2020-10-30 10:54:39 -07:00
Nick Terrell
e2581d9572 [lib] Set appliedParams in zstdmt mode 
Previously only `nbWorkers` was set. Set all parameters, because that is
what is expected. This is needed for the `ZSTD_c_stable{In,Out}Buffer`
parameters.
 2020-10-30 10:54:38 -07:00
senhuang42
536e89c723 Sequence extractor should update CBlockState 2020-10-30 12:13:19 -04:00
senhuang42
32cac2627a Emit last literals of 0 size as well, to indicate block boundary 2020-10-29 16:41:17 -04:00
senhuang42
69bd5f0654 Correct literalsRead calculation to include longLength 2020-10-29 14:49:37 -04:00
senhuang42
59624f3163 Remove implicit typecast to appease appVeyor windows build 2020-10-28 16:25:09 -04:00
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
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