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* refactor read_variable_length()Yann Collet2022-08-021-19/+29
| | | | | updated documentation, more assert(), overflow detection in 32-bit mode
* remove support of decompress_fast*() from decompress_generic()Yann Collet2022-08-021-92/+43
| | | | | | | since it's now supported by decompress_unsafe(). The goal is to improve maintenability of decompress_generic() by reducing its complexity.
* introduce LZ4_decompress_unsafe_generic()Yann Collet2022-08-021-18/+158
| | | | | | | designed to support specifically LZ4_decompress_fast*() variants. The end goal is to offload this support from LZ4_decompress_generic to improve its maintenance.
* fix: various typosDominique Pelle2022-07-313-3/+3
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* New macro for memcpy, memmove and memsetTakayuki Matsuoka2022-07-312-13/+26
| | | | | | | | This changeset introduces the following external macros. - Add new macro LZ4_memset() which enables to inject external function as memset(). - Similar macro LZ4_memmove() for memmove(). - In same manner, LZ4_memcpy() also can be overriden by external macro.
* can select validation of CRC during benchmarkYann Collet2022-07-291-4/+4
| | | | | on command line, using existing long command --no-frame-crc. Note : it's effectively more than that, since _all_ checksums are disabled.
* added ability to skip checksum calculation when decoding LZ4 FramesYann Collet2022-07-292-11/+21
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* implement decoder-only benchmark modeYann Collet2022-07-292-7/+7
| | | | requires an LZ4 Frame as input
* minor refactorYann Collet2022-07-292-37/+53
| | | | to prepare bench.c for multiple decoding functions.
* Merge pull request #1115 from lz4/lz4f_customMemYann Collet2022-07-162-91/+201
|\ | | | | Support for Custom Memory managers
| * implemented LZ4F_createCDict_advanced()Yann Collet2022-07-132-40/+55
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| * implemented LZ4F_createDecompressionContext_advanced()Yann Collet2022-07-132-17/+30
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| * Merge branch 'dev' into lz4f_customMemYann Collet2022-07-132-6/+11
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| * | implemented first custom memory manager interfaceYann Collet2022-07-132-81/+139
| | | | | | | | | | | | | | | | | | | | | for compression context only for the time being, using LZ4F_createCompressionContext_advanced(). Added basic test in frametest.c
| * | declare experimental prototype for LZ4F custom Memory managerYann Collet2022-07-131-0/+23
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* | | support skippable frames within pipeYann Collet2022-07-152-2/+2
| |/ |/| | | | | | | | | | | fix #977 fseek() doesn't work for pipe, switch to "read and forget" mode in such case.
* | fix stricter enum type requirements for C++Yann Collet2022-07-131-4/+4
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* | minor : proper interface for LZ4F_getBlockSize()Yann Collet2022-07-132-2/+6
|/ | | | | and proper documentation. Also : updated manual
* removed ->dictBase from lz4hc stateYann Collet2022-07-132-27/+34
| | | | replaced by ->dictStart
* removed ->base from lz4hc stateYann Collet2022-07-132-67/+68
| | | | replaced by ->prefixStart
* Re-organize state's internal to be more compactYann Collet2022-07-131-4/+5
| | | | | produces less padding, notably on OS400 following #1070 by @jonrumsey
* minor : specify min versions for library version identifiersYann Collet2022-07-122-45/+26
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* clarify static sizes of states for static allocationYann Collet2022-07-124-72/+33
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* Merge pull request #1104 from jonrumsey/os400-build-fixYann Collet2022-07-112-3/+47
|\ | | | | Change definitions of LZ4_xxxSIZE defines for OS400
| * Change definitions of LZ4_STREAMSIZE, LZ4_STREAMDECODESIZE and ↵jonrumsey2022-07-112-3/+47
| | | | | | | | | | | | LZ4_STREAMHCSIZE to factor in OS400 pointer length and structure alignment rules Update the length values on platforms where pointers are 16-bytes, factor in implicit compiler padding to ensure proper alignment of members and overall structure lengths
* | minor refactor : simplify LZ4F_makeBlockYann Collet2022-07-111-27/+20
|/ | | | one less argument
* Merge pull request #1094 from alexmohr/add-uncompressed-apiYann Collet2022-07-052-19/+122
|\ | | | | frame-api: add function to insert uncomressed data
| * review: fix findingsAlexander Mohr2022-07-052-13/+1
| | | | | | | | | | | | | | | | | | * replace assert with test for LZ4F_uncompressedUpdate * update documentation to incldue correct docstring * remove unecessary entry point * remove compress_linked_block_mode from fuzzing test Signed-off-by: Alexander Mohr <alexander.m.mohr@mercedes-benz.com>
| * uncompressed-api: allow uncompressed_update only for independent blocksAlexander Mohr2022-07-055-151/+84
| | | | | | | | Signed-off-by: Alexander Mohr <alexander.m.mohr@mercedes-benz.com>
| * lz4frame: correct start and size after flushAlexander Mohr2022-07-041-1/+4
| | | | | | | | | | | | | | | | | | | | | | when the block mode changes a flush is executed, to prevent mixing compressed and uncompressed data. Prior to this commit dstStart, dstPtr, dstCapacity where not updated to include the offset from bytesWritten. For inputs > blockSize this meant the flushed data was overwritten. Signed-off-by: Alexander Mohr <alexander.m.mohr@mercedes-benz.com>
| * meson: fix meson buildAlexander Mohr2022-06-111-1/+1
| | | | | | | | add static dependency to examples
| * dict-size: make lz4 context constAlexander Mohr2022-06-114-6/+6
| | | | | | | | | | change the context to const to make clear that the context is not modified
| * lz4frame: fix different linkage errorAlexander Mohr2022-06-111-1/+1
| | | | | | | | Signed-off-by: Alexander Mohr <alexander.m.mohr@mercedes-benz.com>
| * fuzz-test: add fuzz test for uncompressed apiAlexander Mohr2022-06-111-2/+1
| | | | | | | | | | | | add a fuzzing test for uncompressed frame api Signed-off-by: Alexander Mohr <alexander.m.mohr@mercedes-benz.com>
| * review: Fix review findingsAlexander Mohr2022-06-101-16/+17
| | | | | | | | | | | | This commit fixes the review findings Signed-off-by: Alexander Mohr <alexander.m.mohr@mercedes-benz.com>
| * review: Fix review findingsAlexander Mohr2022-06-106-15/+52
| | | | | | | | | | | | This commit fixes the review findings Signed-off-by: Alexander Mohr <alexander.m.mohr@mercedes-benz.com>
| * frame-api: add method to insert uncomressed dataAlexander Mohr2022-06-096-72/+214
| | | | | | | | | | | | | | | | new method `uncompressed_update` allows to insert blocks without compression into the lz4 stream. The usage is documented in the frameCompress example Signed-off-by: Alexander Mohr <alexander.m.mohr@mercedes-benz.com>
* | updated dll READMEYann Collet2022-07-041-9/+9
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* | silence a useless MSVC warningYann Collet2022-07-041-0/+1
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* | API: add `LZ4_decompress_safe_partial_usingDict` APIQi Wang2022-06-072-1/+49
| | | | | | | | | | | | feature request: #1051 Signed-off-by: Qi Wang <wangqi@linux.alibaba.com>
* | updated documentation of LZ4F_freeCompressionContextYann Collet2022-06-051-4/+7
|/ | | | to answer #1090
* introduced FORWARD_IF_ERROR()Yann Collet2022-05-101-48/+49
| | | | | | and removed prefix from RETURN_ERROR(_IF) to improve brevity as it's just a local macro (no bleeding in user's namespace).
* introduced macro LZ4F_RETURN_ERROR_IFYann Collet2022-05-071-32/+23
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* introduced macro LZ4F_RETURN_ERRORYann Collet2022-05-071-37/+39
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* removed ERROR_GENERIC from lz4frame.hYann Collet2022-05-072-3/+4
| | | | created a new error code in the process : LZ4F_ERROR_compressionState_uninitialized
* update library version to v1.9.4Yann Collet2022-04-171-1/+1
| | | | to reduce confusion in traces between dev branch and latest v1.9.3 release.
* updated one error codeYann Collet2022-04-061-1/+1
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* updated documentation around `liblz4` granularityYann Collet2022-03-211-6/+26
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* add file operation and examplesanjiahao2022-03-102-0/+404
| | | | | | operate lz4 compressed files as a general files Signed-off-by: anjiahao <anjiahao@xiaomi.com>
* added target test-compile-with-lz4-memory-usageYann Collet2022-01-312-4/+7
| | | | and run it in GA CI
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