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Author SHA1 Message Date
Yann Collet
5997e139f5 added more details for in-place documentation 2019-05-31 11:56:59 -07:00
Yann Collet
33cb8518ac decompress: changed final memcpy() into memmove() 
for compatibility with in-place decompression scenarios.
 2019-05-31 11:44:37 -07:00
Yann Collet
4eec64e4d8 Makefile removed CFLAGS modifier 
which was removing `-O3` as a side effect
 2019-05-31 11:31:48 -07:00
Chenxi Mao
64b5917736 FAST_DEC_LOOP: only did offset check in specific condition. 
When I did FAST_DEC_LOOP performance test, I found the
offset check is much more than v1.8.3

You will see the condition check difference via lzbench with dickens test case.
v1.8.3 34959
v.1.9.x 1055885

After investigate the code, we could see the difference.
v.1.8.3 SKIP the condition check if
if condition is true in:
https://github.com/lz4/lz4/blob/v1.8.3/lib/lz4.c#L1463
AND below condition is true
https://github.com/lz4/lz4/blob/v1.8.3/lib/lz4.c#L1478\
The offset check should be invoked.

v1.9.3
The offset check code will be invoked in every loop which lead to downgrade.
So the fix would be move this check to specific condition
to avoid useless condition check.

After this change, the call number is same as v1.8.3
 2019-05-31 08:36:13 +08:00
Yann Collet
89c97d5ea6 fullbench: added test scenario LZ4F_decompress_followHint 
This emulates a streaming scenario,
where the caller follows rigorously the srcSize hints
provided as return value of LZ4F_decompress().

This is useful to show the issue in #714,
where data is uselessly copied in a tmp buffer first.
 2019-05-30 17:29:51 -07:00
Yann Collet
b77c9c062d
Merge pull request #714 from dreambottle/fix-lz4f-input-buf-use 
Fix src temporary buffer use in lz4frame
 2019-05-30 17:28:59 -07:00
Yann Collet
2f9d1736fb updated API manual 2019-05-30 16:23:53 -07:00
Yann Collet
676d46df27 updated LZ4_DECOMPRESS_INPLACE_MARGIN 
to pass worst case scenario.
Now adds margin proportional to input size to counter local expansion.
 2019-05-30 16:19:30 -07:00
Yann Collet
6c69ae6bd6 added test case for in-place decompression 
worst case, designed to make the decoder overwrite into input
 2019-05-30 16:17:47 -07:00
Yann Collet
22adbb176a add more doc on in-place (de)compression 2019-05-30 09:45:21 -07:00
Yann Collet
b2ba857a4f fuzzer: changed internal buffer size 
to ensure no overflow during unit tests
 2019-05-29 13:33:55 -07:00
Yann Collet
45eba5b030 one more conversion warning 2019-05-29 13:17:45 -07:00
Yann Collet
76116495bf some more minor conversion warnings fixes 2019-05-29 13:14:52 -07:00
Yann Collet
c5bcb4d68b fixed minor conversion warning 2019-05-29 12:56:27 -07:00
Yann Collet
444550defa ensure lz4.h can be included with or without LZ4_STATIC_LINKING_ONLY in any order 
ensure correct propagation of LZ4_DISTANCE_MAX
 2019-05-29 12:21:14 -07:00
Yann Collet
b17f578a91 added comments and macros for in-place (de)compression 2019-05-29 12:06:13 -07:00
Yann Collet
4fc6b48550 added test case for in-place compression 2019-05-29 11:19:10 -07:00
Yann Collet
ab2248b90a
Merge pull request #715 from gabrielstedman/ret 
Handle file not existing case #704
 2019-05-27 11:59:23 -07:00
gabrielstedman
729eef61a1 Handle file not existing case #704 2019-05-26 15:04:45 +01:00
Niko Dzhus
2be2fe43a8 fix temporary buffer use when input size hint is respected 2019-05-24 22:08:44 +03:00
Yann Collet
2037af1346
Merge pull request #709 from lz4/circle 
updated tests for CircleCI
 2019-05-17 12:22:39 -07:00
Yann Collet
e2527ad725 updated tests 
- only play listTest with `make test`, not `make all` which is limited to build
- update `clangtest`, so that it's possible to disable O3 optimization, for faster processing
 2019-05-16 16:46:16 -07:00
Yann Collet
a7151324af
Merge pull request #708 from gabrielstedman/list 
Add multiframe report to --list command
 2019-05-16 15:56:42 -07:00
gstedman
81081f9b2d List mode improvements. 
Improve formatting
  Include static assert
  Use UTIL_fseek to handle potential fseek limitation
  Be explicit when refusing to read from stdin
  Properly free dctx after use
  Include valgrind tests
 2019-05-16 20:53:29 +01:00
gstedman
98a86c8ef6 Add multiframe report to --list command 2019-05-15 21:13:19 +01:00
Yann Collet
df2451479c
Merge pull request #707 from prekageo/dev 
enable LZ4_FAST_DEC_LOOP build macro on aarch64 by default
 2019-05-13 20:35:10 -07:00
George Prekas
605d811e6c enable LZ4_FAST_DEC_LOOP build macro on aarch64/GCC by default 2019-05-07 08:36:06 -05:00
Yann Collet
0291430018
Merge pull request #700 from lzutao/meson-non-failures 
contrib: Make Meson build non optional
 2019-04-29 23:40:42 -07:00
Lzu Tao
cb1be75c84 meson: Rely only on extracted version in lz4.h 
So now instead of warning when failing to extract version number
from lz4.h, we error and stop the build instead.
 2019-04-30 12:25:40 +07:00
Lzu Tao
dd54ea01a2 contrib: Make Meson build non optional 
* Update ninja version to 1.9 in CI.
* Update default project version in meson script.
 2019-04-27 01:41:03 +07:00
Yann Collet
ce55e7eef9
Merge pull request #699 from brendene/compressBound 
Include block checksum in worst case scenario calculation of dstCapacity
 2019-04-25 20:26:04 -07:00
Brenden Eng
9e056bc032 Include block checksum in worst case scenario calculation of dstCapacity 2019-04-25 22:37:39 -04:00
Yann Collet
8453e071f1
Merge pull request #698 from lz4/tidy 
several minor style changes recommended by clang-tidy
 2019-04-24 11:50:50 -07:00
Yann Collet
ba99eac4d0 several minor style changes recommended by clang-tidy 2019-04-24 10:03:02 -07:00
Yann Collet
f9781a6643
Merge pull request #697 from ldv-alt/fixes/test-amalgamation 
Fix test-amalgamation
 2019-04-23 17:20:03 -07:00
Yann Collet
49c20c498b
Merge pull request #696 from lz4/mactest 
Fix dynamic library compilation on Mac OS-X
 2019-04-23 15:08:46 -07:00
Dmitry V. Levin
0d3f85df65 test-amalgamation: split the rule 
Change test-amalgamation to follow each-rule-makes-a-single-target idiom.

Fixes: a7e8d394 ("[amalgamation] add test")
 2019-04-23 21:18:11 +00:00
Dmitry V. Levin
8069d2ae6f test-amalgamation: fix compilation options 
Use the same compilation options to compile lz4_all.c and other object files.

Fixes: a7e8d394 ("[amalgamation] add test")
 2019-04-23 21:18:11 +00:00
Dmitry V. Levin
10726d4c56 test-amalgamation: use a single cat command 
Use the list of prerequisites instead of listing those files manually,
this way they will never fall out of sync.

Also update the amalgamation example to use a single cat command.

Fixes: a7e8d394 ("[amalgamation] add test")
Fixes: b192c86b ("[amalgamation] lz4frame.c")
 2019-04-23 21:18:11 +00:00
Dmitry V. Levin
7937e86255 test-amalgamation: fix the list of prerequisites 
Add $(LZ4DIR)/lz4frame.c to the list of prerequisites as the rule uses
that file.

Fixes: b192c86b ("[amalgamation] lz4frame.c")
 2019-04-23 21:18:11 +00:00
Yann Collet
8c2ab8607e
Merge pull request #695 from lembacon/makefile-os 
lib/Makefile: Fix detection of `Darwin`.
 2019-04-23 14:09:40 -07:00
Yann Collet
2b68501ece added library build test on Mac OS-X 2019-04-23 12:29:39 -07:00
Chongyu Zhu
024216ef73
lib/Makefile: Fix detection of Darwin. 2019-04-24 03:13:19 +08:00
Yann Collet
398e36c756
Merge pull request #692 from lz4/dev 
v1.9.1
 2019-04-23 10:18:40 -07:00
Yann Collet
f665291e6c
Merge pull request #693 from JPeterMugaas/master 
More build imrpvements
 2019-04-23 09:20:41 -07:00
JPeterMugaas
7136489d33 More build imrpvements 
Moved a few other tests to Makefiles.inc.  Other things might need to go there.
Made a test for symlink appropriateness.  Windows can NOT handle them the same way Unix-like operating systems do (if at all).  This is mostly the same as the Visual C projects.
embed version info into .dll and .exes that are redistributed.
 2019-04-23 07:44:00 -04:00
Yann Collet
229b016f50 Merge branch 'dev' of github.com:Cyan4973/lz4 into dev 2019-04-22 17:45:40 -07:00
Yann Collet
1e700b6f85 updated NEWS for v1.9.1 2019-04-22 17:45:24 -07:00
Yann Collet
291b3d8b7e
Merge pull request #691 from lz4/list 
--list
 2019-04-22 17:43:01 -07:00
Yann Collet
35b83a921f fix: no leak when LZ4F_dctx creation fails 
strange, because it previous implementation, it would `exit()`,
so it should not matter ...
 2019-04-22 16:06:22 -07:00