This commit leaves only the functions used by zstd_compress.c. All other
functions have been removed from the API. The ZSTDMT unit tests in
fuzzer.c and zstreamtest.c have been rewritten to use the ZSTD API. And
the --mt zstreamtest tests have been ripped out.
* All copyright lines now have -2020 instead of -present
* All copyright lines include "Facebook, Inc"
* All licenses are now standardized
The copyright in `threading.{h,c}` is not changed because it comes from
zstdmt.
The copyright and license of `divsufsort.{h,c}` is not changed.
* Removing symbols that are not being tested
* Removing symbols used in zstdcli, fileio, dibio and benchzstd
* Removing symbols used in zbuff and add test-zbuff to travis
* Removing remaining symbols and adding unit tests instead
* Removing symbols test entirely
* Make arugments optional and add --dict argument
* Removing accidental print statement
* Change to more likely scenario for dictionary compression benchmark
* Initial revised automated benchmarking script
* Updating nb_iterations and making loop infinite
* Allowing benchmarking params to be changed from cli
* Renaming old speed test
* Removing numpy dependency for cli
* Change filename and benchmakr on pr level
* Moving build outside loop and adding iterations param
* Moving benchmarking to seperate travis ci test
* Fixing typo and using unused variable
* Added mode labels and updated README accordingly
* Adding new mode 'current' that compraes facebook:dev against current hash
* Typo
* Reverting previous accidental diff
* Typo
* Adding frequency config variable to prevent github from blacklisting
* Added new argument for frequency of fetching new prs
* Updating documentation
benchfn used to rely on mem.h, and util,
which in turn relied on platform.h.
Using benchfn outside of zstd required to bring all these dependencies.
Now, dependency is reduced to timefn only.
This required to create a separate timefn from util,
and rewrite benchfn and timefn to no longer need mem.h.
Separating timefn from util has a wide effect accross the code base,
as usage of time functions is widespread.
A lot of build scripts had to be updated to also include timefn.
assert() in paramgrill are not in the benchmark path.
They should remain active, as they don't impact measurements, and their runtime is insignificant.
from zstreamtest.
This test is now integrated within --newapi,
which dynamically switches between the 2 modes randomly.
The main outcome is reduced testing time.
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.
ensure that, when frequency[symbol]==0,
result is (tableLog + 1) bits
with both upper-bit and fractional-bit estimates.
Also : enable BIT_DEBUG in /tests
