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Author SHA1 Message Date
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 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 62f7efc04a added a test to ensure ZSTD_refPrefix() doesn't impact the following compression job 2017-06-28 16:25:13 -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 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 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
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 6122af9cf5 --no-big-tests for msan 
msan tests require too much RAM for 2 GB VM
 2017-06-23 00:37:15 -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
Yann Collet 49f8459d11 fixed minor cast warning 2017-06-21 18:43:39 -07:00
Yann Collet 4d3bdcf130 reduced CLevelMax for --no-big-tests 2017-06-21 18:20:02 -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
Yann Collet ecb0f46866 add controls over streaming buffers 2017-06-21 17:25:01 -07:00
Yann Collet 224e7a1053 added --list command contrib by @paulcruz74 2017-06-21 15:58:36 -07:00
Yann Collet dce789281b fixed : decompression of skippable frames in streaming mode 2017-06-21 15:53:42 -07:00
Yann Collet 991f9dfcde switched fileio.c to ZSTD_DEBUG trigger macro 2017-06-21 15:16:13 -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 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
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 ff8f83bd47 fixed fuzzer test 2017-06-20 12:17:32 -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 008d44ad66 fix attempt : fullbench VS2008 project 2017-06-19 17:45:43 -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
Yann Collet bf99150be3 update new api presentation in zstd.h and manual 2017-06-19 12:56:25 -07:00
Yann Collet c7dcf0f379 updated manual 2017-06-19 12:03:25 -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
Yann Collet ed1d039127 newapi fuzzer tests : random flush orders in main loop 2017-06-19 11:07:33 -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
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
Yann Collet bb0aaf9579 minor man update on -B# option in benchmark mode 2017-06-12 05:19:15 -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 9e6a2eaab6 added MT support to NEWAPI 2017-06-11 18:39:46 -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
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 86bd83ef12 completed NEWS for v1.3.0 2017-06-02 17:43:55 -07:00
Yann Collet 257a7226d8 updated NEWS for v1.3.0 2017-06-02 17:35:11 -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
Yann Collet dcb7535352 ensure zlibwrapper uses ZSTD_malloc() and ZSTD_free() 
which is compatible with { NULL, NULL, NULL }
 2017-06-02 14:01:21 -07:00
Yann Collet b877e834b1 minor indent 2017-06-02 13:47:11 -07:00
Yann Collet 6056e4c3eb added POOL_sizeof() for single-thread 2017-06-02 11:36:47 -07:00
Yann Collet c35e535002 added support for multithreading parameters 2017-06-01 18:44:06 -07:00
Yann Collet c4a5a21c5c created ZSTDMT_sizeof_CCtx() and POOL_sizeof() 
required by ZSTD_sizeofCCtx() while adding a ZSTDMT_CCtx*
 2017-06-01 17:56:14 -07:00
Yann Collet cd2892fd1e protected impossible switch(){default:} with assert(0) 
can be converted into assume(0) in some future
 2017-06-01 09:44:54 -07:00
Yann Collet 06589fe516 Merge branch 'advancedAPI2' of github.com:facebook/zstd into advancedAPI2 2017-05-31 10:03:20 -07:00
Yann Collet 18ab5affa5 fixed visual warning 2017-05-31 09:59:22 -07:00
Yann Collet 01b1549f83 finally converted ZSTD_compressStream_generic() to use {in,ou}Buffer 
replacing the older read/write variables from ZBUFF_* era.
Mostly to help code readability.

Fixed relevant callers.
 2017-05-30 18:10:26 -07:00
Yann Collet c4f46b94ce ZSTD_createCCtx_advanced() now uses ZSTD_calloc() 
initially uses calloc() instead of memset().

Performance improvement is unlikely measurable,
since ZSTD_CCtx is now very small,
with all tables transferred into workSpace.
 2017-05-30 17:45:37 -07:00
Yann Collet deee6e523f expose ZSTD_compress_generic_simpleArgs() 
which is a binding towards ZSTD_compress_generic()
using only integral types for arguments.
 2017-05-30 17:42:00 -07:00
Yann Collet ae728a43b8 removed defaultCustomMem 
now ZSTD_customCMem is promoted as new default.

Advantages : ZSTD_customCMem = { NULL, NULL, NULL},
so it's natural default after a memset.

ZSTD_customCMem is public constant
(defaultCustomMem was private only).

Also : makes it possible to introduce ZSTD_calloc(),
which can now default to stdlib's calloc()
when it detects system default.

Fixed zlibwrapper which depended on defaultCustomMem.
 2017-05-30 17:11:39 -07:00
Yann Collet 5bcef1ada2 removed mtctx->cstream 
use the first cctx in pool when ZSTDMT is used in single-thread mode
now that cctx and cstream are the same object.
 2017-05-30 16:37:19 -07:00
Yann Collet beb62b15a8 Merge branch 'dev' into advancedAPI2 
Fixed conflic in zstd_decompress.c
 2017-05-30 16:18:57 -07:00
Yann Collet 44e45e8423 added ZSTDMT_createCCtx_advanced() 
make it possible to use custom allocators
 2017-05-30 16:12:06 -07:00
Yann Collet f45ca527a1 Merge branch 'advancedAPI2' of github.com:facebook/zstd into advancedAPI2 2017-05-30 10:02:03 -07:00
Yann Collet 7028cbd7fd fixed a few code comments : ZSTD_getFrameParams => ZSTD_getFrameHeader 2017-05-25 18:29:08 -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 ba183005d3 merged DStream's inBuff and outBuff into a single buffer 
Saves one malloc().
Also : makes it easier to implement static allocation
 2017-05-24 15:42:24 -07:00
Yann Collet 2e4db3e531 fixed performance regression with ZSTD_decompress() on small files 
memset() was a quick fix to initialization problems,
but initialize too much space (tables, buffers)
which show up in decompression speed of ZSTD_decompress()
since it needs to recreate DCtx at each invocation.

Fixed by only initialization relevant pointers and size fields.
 2017-05-24 13:15:19 -07:00
Yann Collet 11ea2f7fda Merged ZSTD_DCtx and ZSTD_DStream objects 
They are now the same object.
It's recommended to keep both types in source code
as previous versions of library (<v1.3.0)
still need this differentiation.
 2017-05-23 16:19:43 -07:00