Ryan Schmidt [Thu, 14 Jun 2018 20:05:33 +0000 (15:05 -0500)]
Add CXXFLAGS to ALL_LDFLAGS (#1178)
pzstd requires C++11, which older C++ standard libraries like libstdc++
as used on OS X 10.8 and earlier don't support. The user might address
this by setting "CXXFLAGS=-stdlib=libc++". This flag must be used both
at compile time and at link time. Asking the user to also put the flag
in LDFLAGS is undesirable because then the flag would also be used when
linking C code, which would be inappropriate.
George Lu [Tue, 12 Jun 2018 19:54:43 +0000 (15:54 -0400)]
Add to bench
-Remove global variables
-Remove gv setting functions
-Add advancedParams struct
-Add defaultAdvancedParams();
-Change return type of bench Files
-Change cli to use new interface
-Changed error returns to own struct value
-Change default compression benchmark to use decompress_generic
-Add CustomBench function
-Add Documentation for new functions
Yann Collet [Wed, 13 Jun 2018 18:59:26 +0000 (14:59 -0400)]
grouped debug functions into debug.h
There were 2 competing set of debug functions
within zstd_internal.h and bitstream.h.
They were mostly duplicate, and required care to avoid messing with each other.
There is now a single implementation, shared by both.
Significant change :
The macro variable ZSTD_DEBUG does no longer exist,
it has been replaced by DEBUGLEVEL,
which required modifying several source files.
Topher Lubaway [Tue, 12 Jun 2018 14:59:17 +0000 (07:59 -0700)]
Multi-OS support for --list detecting stream input
IS_CONSOLE stolen wholesale from Options.cpp
not sure if i should have extracted that code for DRY-ness
tested in OSX and functionality seems appropriate
unstested in a windows environment
Topher Lubaway [Mon, 11 Jun 2018 22:26:35 +0000 (15:26 -0700)]
Only check for tty in non-windows environments
unistd.h is for unix standard tools.
There does not appear to be a simple isatty for windows
this we only run the logic and header include in
non-windows environments
Yann Collet [Thu, 7 Jun 2018 22:12:13 +0000 (15:12 -0700)]
fuzzer: make negative compression level fail
result of ZSTD_compress_advanced()
is different from ZSTD_compress_generic()
when using negative compression levels
because the disabling of huffman compression is not passed in parameters.
Yann Collet [Thu, 7 Jun 2018 20:53:30 +0000 (13:53 -0700)]
clean ZSTD_compress() initialization
The (pretty old) code inside ZSTD_compress()
was making some pretty bold assumptions
on what's inside a CCtx and how to init it.
This is pretty fragile by design.
CCtx content evolve.
Knowledge of how to handle that should be concentrate in one place.
A side effect of this strategy
is that ZSTD_compress() wouldn't check for BMI2 capability,
and is therefore missing out some potential speed opportunity.
This patch makes ZSTD_compress() use
the same initialization and release functions
as the normal creator / destructor ones.
Measured on my laptop, with a custom version of bench
manually modified to use ZSTD_compress() (instead of the advanced API) :
This patch :
1#silesia.tar : 211984896 -> 73651053 (2.878), 312.2 MB/s , 723.8 MB/s
2#silesia.tar : 211984896 -> 70163650 (3.021), 226.2 MB/s , 649.8 MB/s
3#silesia.tar : 211984896 -> 66996749 (3.164), 169.4 MB/s , 636.7 MB/s
4#silesia.tar : 211984896 -> 65998319 (3.212), 136.7 MB/s , 619.2 MB/s
dev branch :
1#silesia.tar : 211984896 -> 73651053 (2.878), 291.7 MB/s , 727.5 MB/s
2#silesia.tar : 211984896 -> 70163650 (3.021), 216.2 MB/s , 655.7 MB/s
3#silesia.tar : 211984896 -> 66996749 (3.164), 162.2 MB/s , 633.1 MB/s
4#silesia.tar : 211984896 -> 65998319 (3.212), 130.6 MB/s , 618.6 MB/s
Yann Collet [Thu, 7 Jun 2018 19:18:47 +0000 (12:18 -0700)]
disable aarch64 test on travis CI
there's a bug on travis' ld
> collect2: error: ld terminated with signal 11 [Segmentation fault], core dumped
I cannot reproduce it.
Note that travis' ld version is 2.24
while the one in my Linux VM is 2.26.1.
ld is part of binutils, so it's pretty hard to change.
I would expect the bug to no longer be triggered after some random code change.
To be re-enabled later.
Yann Collet [Wed, 6 Jun 2018 22:04:12 +0000 (15:04 -0700)]
context can be sized down even with constant parameters
when parameters are "equivalent",
the context is re-used in continue mode,
hence needed workspace size is not recalculated.
This incidentally also evades the size-down check and action.
This patch intercepts the "continue mode"
so that the size-down check and action is actually triggered.
Yann Collet [Fri, 1 Jun 2018 22:18:32 +0000 (15:18 -0700)]
Fixed a nasty corruption bug
recently introduce into the new dictionary mode.
The bug could be reproduced with this command :
./zstreamtest -v --opaqueapi --no-big-tests -s4092 -t639
error was in function ZSTD_count_2segments() :
the beginning of the 2nd segment corresponds to prefixStart
and not the beginning of the current block (istart == src).
This would result in comparing the wrong byte.