Import zstandard 1.1.4 in base

zstandard is a new compression library/tool which is very fast at
compression/decompression

For now import as a private library
This commit is contained in:
Baptiste Daroussin 2017-04-15 20:05:22 +00:00
commit e229090553
273 changed files with 88354 additions and 2 deletions

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[cxx]
cppflags = -DXXH_NAMESPACE=ZSTD_ -DZSTD_LEGACY_SUPPORT=4
cflags = -Wall -Wextra -Wcast-qual -Wcast-align -Wshadow -Wstrict-aliasing=1 -Wswitch-enum -Wdeclaration-after-statement -Wstrict-prototypes -Wundef -Wpointer-arith
cxxppflags = -DXXH_NAMESPACE=ZSTD_ -DZSTD_LEGACY_SUPPORT=4
cxxflags = -std=c++11 -Wno-deprecated-declarations
gtest_dep = //contrib/pzstd:gtest
[httpserver]
port = 0

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c8dec2e8da52d483f6dd7c6cd2ad694e8e6fed2b

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# Set the default behavior
* text eol=lf
# Explicitly declare source files
*.c text eol=lf
*.h text eol=lf
# Denote files that should not be modified.
*.odt binary
*.png binary
# Visual Studio
*.sln text eol=crlf
*.vcxproj* text eol=crlf
*.vcproj* text eol=crlf
*.suo binary
*.rc text eol=crlf
# Windows
*.bat text eol=crlf
*.cmd text eol=crlf
# .travis.yml merging
.travis.yml merge=ours

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# Object files
*.o
*.ko
*.dSYM
# Libraries
*.lib
*.a
# Shared objects (inc. Windows DLLs)
*.dll
*.so
*.so.*
*.dylib
# Executables
zstd
zstdmt
*.exe
*.out
*.app
# Test artefacts
tmp*
dictionary*
# Other files
.directory
_codelite/
_zstdbench/
.clang_complete
*.idea
*.swp
.DS_Store
googletest/
*.d
# Directories
bin/
.buckd/
buck-out/

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# Long tests: run on commits to master branch/cron builds
language: c
sudo: required
dist: trusty
matrix:
include:
# Ubuntu 14.04
- env: Cmd='make gcc6install && CC=gcc-6 make clean uasan-test'
- env: Cmd='make gcc6install libc6install && CC=gcc-6 make clean uasan-test32'
- env: Cmd='make clang38install && CC=clang-3.8 make clean msan-test'
- env: Cmd='make clang38install && CC=clang-3.8 make clean tsan-test-zstream'
- env: Cmd='make valgrindinstall && make -C tests clean valgrindTest'
- env: Cmd='make arminstall && make armtest'
- env: Cmd='make arminstall && make aarch64test'
- env: Cmd='make ppcinstall && make ppctest'
- env: Cmd='make ppcinstall && make ppc64test'
- env: Cmd='make gpp6install valgrindinstall && make -C zlibWrapper test && make -C zlibWrapper valgrindTest'
- env: Cmd='make -C tests versionsTest'
- env: Cmd='make gpp6install && cd contrib/pzstd && make test-pzstd && make test-pzstd32 && make test-pzstd-tsan && make test-pzstd-asan'
install:
- export CXX="g++-6" CC="gcc-6"
- env: Cmd='make gcc6install && CC=gcc-6 make uasan-test-zstd-nolegacy'
- env: Cmd='make gcc6install && CC=gcc-6 make uasan-test-zbuff'
# OS X Mavericks
- env: Cmd="make gnu90build && make clean && make test && make clean && make travis-install"
os: osx
git:
depth: 1
branches:
only:
- dev
- master
script:
- JOB_NUMBER=$(echo $TRAVIS_JOB_NUMBER | sed -e 's:[0-9][0-9]*\.\(.*\):\1:')
- echo JOB_NUMBER=$JOB_NUMBER TRAVIS_BRANCH=$TRAVIS_BRANCH TRAVIS_EVENT_TYPE=$TRAVIS_EVENT_TYPE TRAVIS_PULL_REQUEST=$TRAVIS_PULL_REQUEST
- export FUZZERTEST=-T5mn;
export ZSTREAM_TESTTIME=-T5mn;
export DECODECORPUS_TESTTIME=-T1mn;
if [ "$TRAVIS_EVENT_TYPE" = "cron" ]; then
git fetch origin dev;
git checkout -f FETCH_HEAD;
fi;
sh -c "$Cmd" || travis_terminate 1;

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# Contributing to Zstandard
We want to make contributing to this project as easy and transparent as
possible.
## Our Development Process
New versions are being developed in the "dev" branch,
or in their own feature branch.
When they are deemed ready for a release, they are merged into "master".
As a consequences, all contributions must stage first through "dev"
or their own feature branch.
## Pull Requests
We actively welcome your pull requests.
1. Fork the repo and create your branch from `dev`.
2. If you've added code that should be tested, add tests.
3. If you've changed APIs, update the documentation.
4. Ensure the test suite passes.
5. Make sure your code lints.
6. If you haven't already, complete the Contributor License Agreement ("CLA").
## Contributor License Agreement ("CLA")
In order to accept your pull request, we need you to submit a CLA. You only need
to do this once to work on any of Facebook's open source projects.
Complete your CLA here: <https://code.facebook.com/cla>
## Issues
We use GitHub issues to track public bugs. Please ensure your description is
clear and has sufficient instructions to be able to reproduce the issue.
Facebook has a [bounty program](https://www.facebook.com/whitehat/) for the safe
disclosure of security bugs. In those cases, please go through the process
outlined on that page and do not file a public issue.
## Coding Style
* 4 spaces for indentation rather than tabs
## License
By contributing to Zstandard, you agree that your contributions will be licensed
under the [LICENSE](LICENSE) file in the root directory of this source tree.

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BSD License
For Zstandard software
Copyright (c) 2016-present, Facebook, Inc. All rights reserved.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
* Neither the name Facebook nor the names of its contributors may be used to
endorse or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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Copyright (c) 2016-present, Facebook, Inc. All rights reserved.
The examples provided by Facebook are for non-commercial testing and evaluation
purposes only. Facebook reserves all rights not expressly granted.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
FACEBOOK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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# ################################################################
# Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
# All rights reserved.
#
# This source code is licensed under the BSD-style license found in the
# LICENSE file in the root directory of this source tree. An additional grant
# of patent rights can be found in the PATENTS file in the same directory.
# ################################################################
PRGDIR = programs
ZSTDDIR = lib
BUILDIR = build
ZWRAPDIR = zlibWrapper
TESTDIR = tests
# Define nul output
VOID = /dev/null
ifneq (,$(filter Windows%,$(OS)))
EXT =.exe
else
EXT =
endif
.PHONY: default
default: lib-release zstd-release
.PHONY: all
all: | allmost examples manual
.PHONY: allmost
allmost:
$(MAKE) -C $(ZSTDDIR) all
$(MAKE) -C $(PRGDIR) all
$(MAKE) -C $(TESTDIR) all
$(MAKE) -C $(ZWRAPDIR) all
#skip zwrapper, can't build that on alternate architectures without the proper zlib installed
.PHONY: allarch
allarch:
$(MAKE) -C $(ZSTDDIR) all
$(MAKE) -C $(PRGDIR) all
$(MAKE) -C $(TESTDIR) all
.PHONY: all32
all32:
$(MAKE) -C $(PRGDIR) zstd32
$(MAKE) -C $(TESTDIR) all32
.PHONY: lib
lib:
@$(MAKE) -C $(ZSTDDIR) $@
.PHONY: lib-release
lib-release:
@$(MAKE) -C $(ZSTDDIR)
.PHONY: zstd
zstd:
@$(MAKE) -C $(PRGDIR) $@
cp $(PRGDIR)/zstd$(EXT) .
.PHONY: zstd-release
zstd-release:
@$(MAKE) -C $(PRGDIR)
cp $(PRGDIR)/zstd$(EXT) .
.PHONY: zstdmt
zstdmt:
@$(MAKE) -C $(PRGDIR) $@
cp $(PRGDIR)/zstd$(EXT) ./zstdmt$(EXT)
.PHONY: zlibwrapper
zlibwrapper:
$(MAKE) -C $(ZWRAPDIR) test
.PHONY: shortest
shortest:
$(MAKE) -C $(TESTDIR) $@
.PHONY: test
test:
$(MAKE) -C $(TESTDIR) $@
.PHONY: examples
examples:
CPPFLAGS=-I../lib LDFLAGS=-L../lib $(MAKE) -C examples/ all
.PHONY: manual
manual:
$(MAKE) -C contrib/gen_html $@
.PHONY: clean
clean:
@$(MAKE) -C $(ZSTDDIR) $@ > $(VOID)
@$(MAKE) -C $(PRGDIR) $@ > $(VOID)
@$(MAKE) -C $(TESTDIR) $@ > $(VOID)
@$(MAKE) -C $(ZWRAPDIR) $@ > $(VOID)
@$(MAKE) -C examples/ $@ > $(VOID)
@$(MAKE) -C contrib/gen_html $@ > $(VOID)
@$(RM) zstd$(EXT) zstdmt$(EXT) tmp*
@echo Cleaning completed
#------------------------------------------------------------------------------
# make install is validated only for Linux, OSX, Hurd and some BSD targets
#------------------------------------------------------------------------------
ifneq (,$(filter $(shell uname),Linux Darwin GNU/kFreeBSD GNU FreeBSD DragonFly NetBSD))
HOST_OS = POSIX
.PHONY: install uninstall travis-install clangtest gpptest armtest usan asan uasan
install:
@$(MAKE) -C $(ZSTDDIR) $@
@$(MAKE) -C $(PRGDIR) $@
uninstall:
@$(MAKE) -C $(ZSTDDIR) $@
@$(MAKE) -C $(PRGDIR) $@
travis-install:
$(MAKE) install PREFIX=~/install_test_dir
gppbuild: clean
g++ -v
CC=g++ $(MAKE) -C programs all CFLAGS="-O3 -Wall -Wextra -Wundef -Wshadow -Wcast-align -Werror"
gcc5build: clean
gcc-5 -v
CC=gcc-5 $(MAKE) all MOREFLAGS="-Werror"
gcc6build: clean
gcc-6 -v
CC=gcc-6 $(MAKE) all MOREFLAGS="-Werror"
clangbuild: clean
clang -v
CXX=clang++ CC=clang $(MAKE) all MOREFLAGS="-Werror -Wconversion -Wno-sign-conversion -Wdocumentation"
m32build: clean
gcc -v
$(MAKE) all32
armbuild: clean
CC=arm-linux-gnueabi-gcc CFLAGS="-Werror" $(MAKE) allarch
aarch64build: clean
CC=aarch64-linux-gnu-gcc CFLAGS="-Werror" $(MAKE) allarch
ppcbuild: clean
CC=powerpc-linux-gnu-gcc CLAGS="-m32 -Wno-attributes -Werror" $(MAKE) allarch
ppc64build: clean
CC=powerpc-linux-gnu-gcc CFLAGS="-m64 -Werror" $(MAKE) allarch
armfuzz: clean
CC=arm-linux-gnueabi-gcc QEMU_SYS=qemu-arm-static MOREFLAGS="-static" $(MAKE) -C $(TESTDIR) fuzztest
aarch64fuzz: clean
CC=aarch64-linux-gnu-gcc QEMU_SYS=qemu-aarch64-static MOREFLAGS="-static" $(MAKE) -C $(TESTDIR) fuzztest
ppcfuzz: clean
CC=powerpc-linux-gnu-gcc QEMU_SYS=qemu-ppc-static MOREFLAGS="-static" $(MAKE) -C $(TESTDIR) fuzztest
ppc64fuzz: clean
CC=powerpc-linux-gnu-gcc QEMU_SYS=qemu-ppc64-static MOREFLAGS="-m64 -static" $(MAKE) -C $(TESTDIR) fuzztest
gpptest: clean
CC=g++ $(MAKE) -C $(PRGDIR) all CFLAGS="-O3 -Wall -Wextra -Wundef -Wshadow -Wcast-align -Werror"
gcc5test: clean
gcc-5 -v
$(MAKE) all CC=gcc-5 MOREFLAGS="-Werror"
gcc6test: clean
gcc-6 -v
$(MAKE) all CC=gcc-6 MOREFLAGS="-Werror"
clangtest: clean
clang -v
$(MAKE) all CXX=clang-++ CC=clang MOREFLAGS="-Werror -Wconversion -Wno-sign-conversion -Wdocumentation"
armtest: clean
$(MAKE) -C $(TESTDIR) datagen # use native, faster
$(MAKE) -C $(TESTDIR) test CC=arm-linux-gnueabi-gcc QEMU_SYS=qemu-arm-static ZSTDRTTEST= MOREFLAGS="-Werror -static"
aarch64test:
$(MAKE) -C $(TESTDIR) datagen # use native, faster
$(MAKE) -C $(TESTDIR) test CC=aarch64-linux-gnu-gcc QEMU_SYS=qemu-aarch64-static ZSTDRTTEST= MOREFLAGS="-Werror -static"
ppctest: clean
$(MAKE) -C $(TESTDIR) datagen # use native, faster
$(MAKE) -C $(TESTDIR) test CC=powerpc-linux-gnu-gcc QEMU_SYS=qemu-ppc-static ZSTDRTTEST= MOREFLAGS="-Werror -Wno-attributes -static"
ppc64test: clean
$(MAKE) -C $(TESTDIR) datagen # use native, faster
$(MAKE) -C $(TESTDIR) test CC=powerpc-linux-gnu-gcc QEMU_SYS=qemu-ppc64-static ZSTDRTTEST= MOREFLAGS="-m64 -static"
arm-ppc-compilation:
$(MAKE) -C $(PRGDIR) clean zstd CC=arm-linux-gnueabi-gcc QEMU_SYS=qemu-arm-static ZSTDRTTEST= MOREFLAGS="-Werror -static"
$(MAKE) -C $(PRGDIR) clean zstd CC=aarch64-linux-gnu-gcc QEMU_SYS=qemu-aarch64-static ZSTDRTTEST= MOREFLAGS="-Werror -static"
$(MAKE) -C $(PRGDIR) clean zstd CC=powerpc-linux-gnu-gcc QEMU_SYS=qemu-ppc-static ZSTDRTTEST= MOREFLAGS="-Werror -Wno-attributes -static"
$(MAKE) -C $(PRGDIR) clean zstd CC=powerpc-linux-gnu-gcc QEMU_SYS=qemu-ppc64-static ZSTDRTTEST= MOREFLAGS="-m64 -static"
# run UBsan with -fsanitize-recover=signed-integer-overflow
# due to a bug in UBsan when doing pointer subtraction
# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63303
usan: clean
$(MAKE) test CC=clang MOREFLAGS="-g -fno-sanitize-recover=all -fsanitize-recover=signed-integer-overflow -fsanitize=undefined"
asan: clean
$(MAKE) test CC=clang MOREFLAGS="-g -fsanitize=address"
asan-%: clean
LDFLAGS=-fuse-ld=gold MOREFLAGS="-g -fno-sanitize-recover=all -fsanitize=address" $(MAKE) -C $(TESTDIR) $*
msan: clean
$(MAKE) test CC=clang MOREFLAGS="-g -fsanitize=memory -fno-omit-frame-pointer" # datagen.c fails this test for no obvious reason
msan-%: clean
LDFLAGS=-fuse-ld=gold MOREFLAGS="-fno-sanitize-recover=all -fsanitize=memory -fno-omit-frame-pointer" $(MAKE) -C $(TESTDIR) $*
asan32: clean
$(MAKE) -C $(TESTDIR) test32 CC=clang MOREFLAGS="-g -fsanitize=address"
uasan: clean
$(MAKE) test CC=clang MOREFLAGS="-g -fno-sanitize-recover=all -fsanitize-recover=signed-integer-overflow -fsanitize=address,undefined"
uasan-%: clean
LDFLAGS=-fuse-ld=gold MOREFLAGS="-Og -fno-sanitize-recover=all -fsanitize-recover=signed-integer-overflow -fsanitize=address,undefined" $(MAKE) -C $(TESTDIR) $*
tsan-%: clean
LDFLAGS=-fuse-ld=gold MOREFLAGS="-g -fno-sanitize-recover=all -fsanitize=thread" $(MAKE) -C $(TESTDIR) $*
apt-install:
sudo apt-get -yq --no-install-suggests --no-install-recommends --force-yes install $(APT_PACKAGES)
apt-add-repo:
sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test
sudo apt-get update -y -qq
ppcinstall:
APT_PACKAGES="qemu-system-ppc qemu-user-static gcc-powerpc-linux-gnu" $(MAKE) apt-install
arminstall:
APT_PACKAGES="qemu-system-arm qemu-user-static gcc-arm-linux-gnueabi libc6-dev-armel-cross gcc-aarch64-linux-gnu libc6-dev-arm64-cross" $(MAKE) apt-install
valgrindinstall:
APT_PACKAGES="valgrind" $(MAKE) apt-install
libc6install:
APT_PACKAGES="libc6-dev-i386 gcc-multilib" $(MAKE) apt-install
gcc6install: apt-add-repo
APT_PACKAGES="libc6-dev-i386 gcc-multilib gcc-6 gcc-6-multilib" $(MAKE) apt-install
gpp6install: apt-add-repo
APT_PACKAGES="libc6-dev-i386 g++-multilib gcc-6 g++-6 g++-6-multilib" $(MAKE) apt-install
clang38install:
APT_PACKAGES="clang-3.8" $(MAKE) apt-install
endif
ifneq (,$(filter MSYS%,$(shell uname)))
HOST_OS = MSYS
CMAKE_PARAMS = -G"MSYS Makefiles"
endif
#------------------------------------------------------------------------
#make tests validated only for MSYS, Linux, OSX, kFreeBSD and Hurd targets
#------------------------------------------------------------------------
ifneq (,$(filter $(HOST_OS),MSYS POSIX))
cmakebuild:
cmake --version
$(RM) -r $(BUILDIR)/cmake/build
mkdir $(BUILDIR)/cmake/build
cd $(BUILDIR)/cmake/build ; cmake -DPREFIX:STRING=~/install_test_dir $(CMAKE_PARAMS) .. ; $(MAKE) install ; $(MAKE) uninstall
c90build: clean
gcc -v
CFLAGS="-std=c90" $(MAKE) allmost # will fail, due to missing support for `long long`
gnu90build: clean
gcc -v
CFLAGS="-std=gnu90" $(MAKE) allmost
c99build: clean
gcc -v
CFLAGS="-std=c99" $(MAKE) allmost
gnu99build: clean
gcc -v
CFLAGS="-std=gnu99" $(MAKE) allmost
c11build: clean
gcc -v
CFLAGS="-std=c11" $(MAKE) allmost
bmix64build: clean
gcc -v
CFLAGS="-O3 -mbmi -Werror" $(MAKE) -C $(TESTDIR) test
bmix32build: clean
gcc -v
CFLAGS="-O3 -mbmi -mx32 -Werror" $(MAKE) -C $(TESTDIR) test
bmi32build: clean
gcc -v
CFLAGS="-O3 -mbmi -m32 -Werror" $(MAKE) -C $(TESTDIR) test
staticAnalyze: clean
gcc -v
CPPFLAGS=-g scan-build --status-bugs -v $(MAKE) all
endif

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v1.1.4
cli : new : can compress in *.gz format, using --format=gzip command, by Przemyslaw Skibinski
cli : new : advanced benchmark command --priority=rt
cli : fix : write on sparse-enabled file systems in 32-bits mode, by @ds77
cli : fix : --rm remains silent when input is stdin
cli : experimental : xzstd, with support for xz/lzma decoding, by Przemyslaw Skibinski
speed : improved decompression speed in streaming mode for single shot scenarios (+5%)
memory : DDict (decompression dictionary) memory usage down from 150 KB to 20 KB
arch : 32-bits variant able to generate and decode very long matches (>32 MB), by Sean Purcell
API : new : ZSTD_findFrameCompressedSize(), ZSTD_getFrameContentSize(), ZSTD_findDecompressedSize()
API : changed : dropped support of legacy versions <= v0.3 (can be changed by modifying ZSTD_LEGACY_SUPPORT value)
build: new: meson build system in contrib/meson, by Dima Krasner
build: improved cmake script, by @Majlen
build: added -Wformat-security flag, as recommended by Padraig Brady
doc : new : educational decoder, by Sean Purcell
v1.1.3
cli : zstd can decompress .gz files (can be disabled with `make zstd-nogz` or `make HAVE_ZLIB=0`)
cli : new : experimental target `make zstdmt`, with multi-threading support
cli : new : improved dictionary builder "cover" (experimental), by Nick Terrell, based on prior work by Giuseppe Ottaviano.
cli : new : advanced commands for detailed parameters, by Przemyslaw Skibinski
cli : fix zstdless on Mac OS-X, by Andrew Janke
cli : fix #232 "compress non-files"
dictBuilder : improved dictionary generation quality, thanks to Nick Terrell
API : new : lib/compress/ZSTDMT_compress.h multithreading API (experimental)
API : new : ZSTD_create?Dict_byReference(), requested by Bartosz Taudul
API : new : ZDICT_finalizeDictionary()
API : fix : ZSTD_initCStream_usingCDict() properly writes dictID into frame header, by Gregory Szorc (#511)
API : fix : all symbols properly exposed in libzstd, by Nick Terrell
build : support for Solaris target, by Przemyslaw Skibinski
doc : clarified specification, by Sean Purcell
v1.1.2
API : streaming : decompression : changed : automatic implicit reset when chain-decoding new frames without init
API : experimental : added : dictID retrieval functions, and ZSTD_initCStream_srcSize()
API : zbuff : changed : prototypes now generate deprecation warnings
lib : improved : faster decompression speed at ultra compression settings and 32-bits mode
lib : changed : only public ZSTD_ symbols are now exposed
lib : changed : reduced usage of stack memory
lib : fixed : several corner case bugs, by Nick Terrell
cli : new : gzstd, experimental version able to decode .gz files, by Przemyslaw Skibinski
cli : new : preserve file attributes
cli : new : added zstdless and zstdgrep tools
cli : fixed : status displays total amount decoded, even for file consisting of multiple frames (like pzstd)
cli : fixed : zstdcat
zlib_wrapper : added support for gz* functions, by Przemyslaw Skibinski
install : better compatibility with FreeBSD, by Dimitry Andric
source tree : changed : zbuff source files moved to lib/deprecated
v1.1.1
New : command -M#, --memory=, --memlimit=, --memlimit-decompress= to limit allowed memory consumption
New : doc/zstd_manual.html, by Przemyslaw Skibinski
Improved : slightly better compression ratio at --ultra levels (>= 20)
Improved : better memory usage when using streaming compression API, thanks to @Rogier-5 report
Added : API : ZSTD_initCStream_usingCDict(), ZSTD_initDStream_usingDDict() (experimental section)
Added : example/multiple_streaming_compression.c
Changed : zstd_errors.h is now installed within /include (and replaces errors_public.h)
Updated man page
Fixed : zstd-small, zstd-compress and zstd-decompress compilation targets
v1.1.0
New : contrib/pzstd, parallel version of zstd, by Nick Terrell
added : NetBSD install target (#338)
Improved : speed for batches of small files
Improved : speed of zlib wrapper, by Przemyslaw Skibinski
Changed : libzstd on Windows supports legacy formats, by Christophe Chevalier
Fixed : CLI -d output to stdout by default when input is stdin (#322)
Fixed : CLI correctly detects console on Mac OS-X
Fixed : CLI supports recursive mode `-r` on Mac OS-X
Fixed : Legacy decoders use unified error codes, reported by benrg (#341), fixed by Przemyslaw Skibinski
Fixed : compatibility with OpenBSD, reported by Juan Francisco Cantero Hurtado (#319)
Fixed : compatibility with Hurd, by Przemyslaw Skibinski (#365)
Fixed : zstd-pgo, reported by octoploid (#329)
v1.0.0
Change Licensing, all project is now BSD, Copyright Facebook
Small decompression speed improvement
API : Streaming API supports legacy format
API : ZDICT_getDictID(), ZSTD_sizeof_{CCtx, DCtx, CStream, DStream}(), ZSTD_setDStreamParamter()
CLI supports legacy formats v0.4+
Fixed : compression fails on certain huge files, reported by Jesse McGrew
Enhanced documentation, by Przemyslaw Skibinski
v0.8.1
New streaming API
Changed : --ultra now enables levels beyond 19
Changed : -i# now selects benchmark time in second
Fixed : ZSTD_compress* can now compress > 4 GB in a single pass, reported by Nick Terrell
Fixed : speed regression on specific patterns (#272)
Fixed : support for Z_SYNC_FLUSH, by Dmitry Krot (#291)
Fixed : ICC compilation, by Przemyslaw Skibinski
v0.8.0
Improved : better speed on clang and gcc -O2, thanks to Eric Biggers
New : Build on FreeBSD and DragonFly, thanks to JrMarino
Changed : modified API : ZSTD_compressEnd()
Fixed : legacy mode with ZSTD_HEAPMODE=0, by Christopher Bergqvist
Fixed : premature end of frame when zero-sized raw block, reported by Eric Biggers
Fixed : large dictionaries (> 384 KB), reported by Ilona Papava
Fixed : checksum correctly checked in single-pass mode
Fixed : combined --test amd --rm, reported by Andreas M. Nilsson
Modified : minor compression level adaptations
Updated : compression format specification to v0.2.0
changed : zstd.h moved to /lib directory
v0.7.5
Transition version, supporting decoding of v0.8.x
v0.7.4
Added : homebrew for Mac, by Daniel Cade
Added : more examples
Fixed : segfault when using small dictionaries, reported by Felix Handte
Modified : default compression level for CLI is now 3
Updated : specification, to v0.1.1
v0.7.3
New : compression format specification
New : `--` separator, stating that all following arguments are file names. Suggested by Chip Turner.
New : `ZSTD_getDecompressedSize()`
New : OpenBSD target, by Juan Francisco Cantero Hurtado
New : `examples` directory
fixed : dictBuilder using HC levels, reported by Bartosz Taudul
fixed : legacy support from ZSTD_decompress_usingDDict(), reported by Felix Handte
fixed : multi-blocks decoding with intermediate uncompressed blocks, reported by Greg Slazinski
modified : removed "mem.h" and "error_public.h" dependencies from "zstd.h" (experimental section)
modified : legacy functions no longer need magic number
v0.7.2
fixed : ZSTD_decompressBlock() using multiple consecutive blocks. Reported by Greg Slazinski.
fixed : potential segfault on very large files (many gigabytes). Reported by Chip Turner.
fixed : CLI displays system error message when destination file cannot be created (#231). Reported by Chip Turner.
v0.7.1
fixed : ZBUFF_compressEnd() called multiple times with too small `dst` buffer, reported by Christophe Chevalier
fixed : dictBuilder fails if first sample is too small, reported by Руслан Ковалёв
fixed : corruption issue, reported by cj
modified : checksum enabled by default in command line mode
v0.7.0
New : Support for directory compression, using `-r`, thanks to Przemyslaw Skibinski
New : Command `--rm`, to remove source file after successful de/compression
New : Visual build scripts, by Christophe Chevalier
New : Support for Sparse File-systems (do not use space for zero-filled sectors)
New : Frame checksum support
New : Support pass-through mode (when using `-df`)
API : more efficient Dictionary API : `ZSTD_compress_usingCDict()`, `ZSTD_decompress_usingDDict()`
API : create dictionary files from custom content, by Giuseppe Ottaviano
API : support for custom malloc/free functions
New : controllable Dictionary ID
New : Support for skippable frames
v0.6.1
New : zlib wrapper API, thanks to Przemyslaw Skibinski
New : Ability to compile compressor / decompressor separately
Changed : new lib directory structure
Fixed : Legacy codec v0.5 compatible with dictionary decompression
Fixed : Decoder corruption error (#173)
Fixed : null-string roundtrip (#176)
New : benchmark mode can select directory as input
Experimental : midipix support, VMS support
v0.6.0
Stronger high compression modes, thanks to Przemyslaw Skibinski
API : ZSTD_getFrameParams() provides size of decompressed content
New : highest compression modes require `--ultra` command to fully unleash their capacity
Fixed : zstd cli return error code > 0 and removes dst file artifact when decompression fails, thanks to Chip Turner
v0.5.1
New : Optimal parsing => Very high compression modes, thanks to Przemyslaw Skibinski
Changed : Dictionary builder integrated into libzstd and zstd cli
Changed (!) : zstd cli now uses "multiple input files" as default mode. See `zstd -h`.
Fix : high compression modes for big-endian platforms
New : zstd cli : `-t` | `--test` command
v0.5.0
New : dictionary builder utility
Changed : streaming & dictionary API
Improved : better compression of small data
v0.4.7
Improved : small compression speed improvement in HC mode
Changed : `zstd_decompress.c` has ZSTD_LEGACY_SUPPORT to 0 by default
fix : bt search bug
v0.4.6
fix : fast compression mode on Windows
New : cmake configuration file, thanks to Artyom Dymchenko
Improved : high compression mode on repetitive data
New : block-level API
New : ZSTD_duplicateCCtx()
v0.4.5
new : -m/--multiple : compress/decompress multiple files
v0.4.4
Fixed : high compression modes for Windows 32 bits
new : external dictionary API extended to buffered mode and accessible through command line
new : windows DLL project, thanks to Christophe Chevalier
v0.4.3 :
new : external dictionary API
new : zstd-frugal
v0.4.2 :
Generic minor improvements for small blocks
Fixed : big-endian compatibility, by Peter Harris (#85)
v0.4.1
Fixed : ZSTD_LEGACY_SUPPORT=0 build mode (reported by Luben)
removed `zstd.c`
v0.4.0
Command line utility compatible with high compression levels
Removed zstdhc => merged into zstd
Added : ZBUFF API (see zstd_buffered.h)
Rolling buffer support
v0.3.6
small blocks params
v0.3.5
minor generic compression improvements
v0.3.4
Faster fast cLevels
v0.3.3
Small compression ratio improvement
v0.3.2
Fixed Visual Studio
v0.3.1 :
Small compression ratio improvement
v0.3
HC mode : compression levels 2-26
v0.2.2
Fix : Visual Studio 2013 & 2015 release compilation, by Christophe Chevalier
v0.2.1
Fix : Read errors, advanced fuzzer tests, by Hanno Böck
v0.2.0
**Breaking format change**
Faster decompression speed
Can still decode v0.1 format
v0.1.3
fix uninitialization warning, reported by Evan Nemerson
v0.1.2
frame concatenation support
v0.1.1
fix compression bug
detects write-flush errors
v0.1.0
first release

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Additional Grant of Patent Rights Version 2
"Software" means the Zstandard software distributed by Facebook, Inc.
Facebook, Inc. ("Facebook") hereby grants to each recipient of the Software
("you") a perpetual, worldwide, royalty-free, non-exclusive, irrevocable
(subject to the termination provision below) license under any Necessary
Claims, to make, have made, use, sell, offer to sell, import, and otherwise
transfer the Software. For avoidance of doubt, no license is granted under
Facebooks rights in any patent claims that are infringed by (i) modifications
to the Software made by you or any third party or (ii) the Software in
combination with any software or other technology.
The license granted hereunder will terminate, automatically and without notice,
if you (or any of your subsidiaries, corporate affiliates or agents) initiate
directly or indirectly, or take a direct financial interest in, any Patent
Assertion: (i) against Facebook or any of its subsidiaries or corporate
affiliates, (ii) against any party if such Patent Assertion arises in whole or
in part from any software, technology, product or service of Facebook or any of
its subsidiaries or corporate affiliates, or (iii) against any party relating
to the Software. Notwithstanding the foregoing, if Facebook or any of its
subsidiaries or corporate affiliates files a lawsuit alleging patent
infringement against you in the first instance, and you respond by filing a
patent infringement counterclaim in that lawsuit against that party that is
unrelated to the Software, the license granted hereunder will not terminate
under section (i) of this paragraph due to such counterclaim.
A "Necessary Claim" is a claim of a patent owned by Facebook that is
necessarily infringed by the Software standing alone.
A "Patent Assertion" is any lawsuit or other action alleging direct, indirect,
or contributory infringement or inducement to infringe any patent, including a
cross-claim or counterclaim.

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__Zstandard__, or `zstd` as short version, is a fast lossless compression algorithm,
targeting real-time compression scenarios at zlib-level and better compression ratios.
It is provided as an open-source BSD-licensed **C** library,
and a command line utility producing and decoding `.zst` and `.gz` files.
For other programming languages,
you can consult a list of known ports on [Zstandard homepage](http://www.zstd.net/#other-languages).
|Branch |Status |
|------------|---------|
|master | [![Build Status](https://travis-ci.org/facebook/zstd.svg?branch=master)](https://travis-ci.org/facebook/zstd) |
|dev | [![Build Status](https://travis-ci.org/facebook/zstd.svg?branch=dev)](https://travis-ci.org/facebook/zstd) |
As a reference, several fast compression algorithms were tested and compared
on a server running Linux Mint Debian Edition (`Linux version 4.8.0-1-amd64`),
with a Core i7-6700K CPU @ 4.0GHz,
using [lzbench v1.6], an open-source in-memory benchmark by @inikep
compiled with GCC 6.3.0,
on the [Silesia compression corpus].
[lzbench v1.6]: https://github.com/inikep/lzbench
[Silesia compression corpus]: http://sun.aei.polsl.pl/~sdeor/index.php?page=silesia
| Compressor name | Ratio | Compression| Decompress.|
| --------------- | ------| -----------| ---------- |
| **zstd 1.1.3 -1** | 2.877 | 430 MB/s | 1110 MB/s |
| zlib 1.2.8 -1 | 2.743 | 110 MB/s | 400 MB/s |
| brotli 0.5.2 -0 | 2.708 | 400 MB/s | 430 MB/s |
| quicklz 1.5.0 -1 | 2.238 | 550 MB/s | 710 MB/s |
| lzo1x 2.09 -1 | 2.108 | 650 MB/s | 830 MB/s |
| lz4 1.7.5 | 2.101 | 720 MB/s | 3600 MB/s |
| snappy 1.1.3 | 2.091 | 500 MB/s | 1650 MB/s |
| lzf 3.6 -1 | 2.077 | 400 MB/s | 860 MB/s |
[zlib]:http://www.zlib.net/
[LZ4]: http://www.lz4.org/
Zstd can also offer stronger compression ratios at the cost of compression speed.
Speed vs Compression trade-off is configurable by small increments. Decompression speed is preserved and remains roughly the same at all settings, a property shared by most LZ compression algorithms, such as [zlib] or lzma.
The following tests were run on a Core i7-3930K CPU @ 4.5GHz, using [lzbench], an open-source in-memory benchmark by @inikep compiled with GCC 5.2.1, on the [Silesia compression corpus].
Compression Speed vs Ratio | Decompression Speed
---------------------------|--------------------
![Compression Speed vs Ratio](doc/images/Cspeed4.png "Compression Speed vs Ratio") | ![Decompression Speed](doc/images/Dspeed4.png "Decompression Speed")
Several algorithms can produce higher compression ratios, but at slower speeds, falling outside of the graph.
For a larger picture including very slow modes, [click on this link](doc/images/DCspeed5.png) .
### The case for Small Data compression
Previous charts provide results applicable to typical file and stream scenarios (several MB). Small data comes with different perspectives.
The smaller the amount of data to compress, the more difficult it is to compress. This problem is common to all compression algorithms, and reason is, compression algorithms learn from past data how to compress future data. But at the beginning of a new data set, there is no "past" to build upon.
To solve this situation, Zstd offers a __training mode__, which can be used to tune the algorithm for a selected type of data.
Training Zstandard is achieved by provide it with a few samples (one file per sample). The result of this training is stored in a file called "dictionary", which must be loaded before compression and decompression.
Using this dictionary, the compression ratio achievable on small data improves dramatically.
The following example uses the `github-users` [sample set](https://github.com/facebook/zstd/releases/tag/v1.1.3), created from [github public API](https://developer.github.com/v3/users/#get-all-users).
It consists of roughly 10K records weighting about 1KB each.
Compression Ratio | Compression Speed | Decompression Speed
------------------|-------------------|--------------------
![Compression Ratio](doc/images/dict-cr.png "Compression Ratio") | ![Compression Speed](doc/images/dict-cs.png "Compression Speed") | ![Decompression Speed](doc/images/dict-ds.png "Decompression Speed")
These compression gains are achieved while simultaneously providing _faster_ compression and decompression speeds.
Training works if there is some correlation in a family of small data samples. The more data-specific a dictionary is, the more efficient it is (there is no _universal dictionary_).
Hence, deploying one dictionary per type of data will provide the greatest benefits.
Dictionary gains are mostly effective in the first few KB. Then, the compression algorithm will gradually use previously decoded content to better compress the rest of the file.
#### Dictionary compression How To :
1) Create the dictionary
`zstd --train FullPathToTrainingSet/* -o dictionaryName`
2) Compress with dictionary
`zstd -D dictionaryName FILE`
3) Decompress with dictionary
`zstd -D dictionaryName --decompress FILE.zst`
### Build
Once you have the repository cloned, there are multiple ways provided to build Zstandard.
#### Makefile
If your system is compatible with a standard `make` (or `gmake`) binary generator,
you can simply run it at the root directory.
It will generate `zstd` within root directory.
Other available options include :
- `make install` : create and install zstd binary, library and man page
- `make test` : create and run `zstd` and test tools on local platform
#### cmake
A `cmake` project generator is provided within `build/cmake`.
It can generate Makefiles or other build scripts
to create `zstd` binary, and `libzstd` dynamic and static libraries.
#### Meson
A Meson project is provided within `contrib/meson`.
#### Visual Studio (Windows)
Going into `build` directory, you will find additional possibilities :
- Projects for Visual Studio 2005, 2008 and 2010
+ VS2010 project is compatible with VS2012, VS2013 and VS2015
- Automated build scripts for Visual compiler by @KrzysFR , in `build/VS_scripts`,
which will build `zstd` cli and `libzstd` library without any need to open Visual Studio solution.
### Status
Zstandard is currently deployed within Facebook. It is used daily to compress and decompress very large amounts of data in multiple formats and use cases.
Zstandard is considered safe for production environments.
### License
Zstandard is [BSD-licensed](LICENSE). We also provide an [additional patent grant](PATENTS).
### Contributing
The "dev" branch is the one where all contributions will be merged before reaching "master".
If you plan to propose a patch, please commit into the "dev" branch or its own feature branch.
Direct commit to "master" are not permitted.
For more information, please read [CONTRIBUTING](CONTRIBUTING.md).
### Miscellaneous
Zstd entropy stage is provided by [Huff0 and FSE, from Finite State Entropy library](https://github.com/Cyan4973/FiniteStateEntropy).

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Testing
=======
Zstandard CI testing is split up into three sections:
short, medium, and long tests.
Short Tests
-----------
Short tests run on CircleCI for new commits on every branch and pull request.
They consist of the following tests:
- Compilation on all supported targets (x86, x86_64, ARM, AArch64, PowerPC, and PowerPC64)
- Compilation on various versions of gcc, clang, and g++
- `tests/playTests.sh` on x86_64, without the tests on long data (CLI tests)
- Small tests (`tests/legacy.c`, `tests/longmatch.c`, `tests/symbols.c`) on x64_64
Medium Tests
------------
Medium tests run on every commit and pull request to `dev` branch, on TravisCI.
They consist of the following tests:
- The following tests run with UBsan and Asan on x86_64 and x86, as well as with
Msan on x86_64
- `tests/playTests.sh --test-long-data`
- Fuzzer tests: `tests/fuzzer.c`, `tests/zstreamtest.c`, and `tests/decodecorpus.c`
- `tests/zstreamtest.c` under Tsan (streaming mode, including multithreaded mode)
- Valgrind Test (`make -C tests valgrindTest`) (testing CLI and fuzzer under valgrind)
- Fuzzer tests (see above) on ARM, AArch64, PowerPC, and PowerPC64
Long Tests
----------
Long tests run on all commits to `master` branch,
and once a day on the current version of `dev` branch,
on TravisCI.
They consist of the following tests:
- Entire test suite (including fuzzers and some other specialized tests) on:
- x86_64 and x86 with UBsan and Asan
- x86_64 with Msan
- ARM, AArch64, PowerPC, and PowerPC64
- Streaming mode fuzzer with Tsan (for the `zstdmt` testing)
- ZlibWrapper tests, including under valgrind
- Versions test (ensuring `zstd` can decode files from all previous versions)
- `pzstd` with asan and tsan, as well as in 32-bits mode
- Testing `zstd` with legacy mode off
- Testing `zbuff` (old streaming API)
- Entire test suite and make install on OS X

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version: 1.0.{build}
environment:
matrix:
- COMPILER: "gcc"
PLATFORM: "mingw64"
MAKE_PARAMS: '"make test && make lib && make -C tests test-symbols fullbench-dll fullbench-lib"'
- COMPILER: "gcc"
PLATFORM: "mingw32"
MAKE_PARAMS: '"make -C tests test-zstd test-fullbench test-fuzzer test-invalidDictionaries"'
- COMPILER: "gcc"
PLATFORM: "clang"
MAKE_PARAMS: '"make -C tests zstd fullbench fuzzer paramgrill datagen CC=clang MOREFLAGS="--target=x86_64-w64-mingw32 -Werror -Wconversion -Wno-sign-conversion""'
- COMPILER: "visual"
CONFIGURATION: "Debug"
PLATFORM: "x64"
- COMPILER: "visual"
CONFIGURATION: "Debug"
PLATFORM: "Win32"
- COMPILER: "visual"
CONFIGURATION: "Release"
PLATFORM: "x64"
- COMPILER: "visual"
CONFIGURATION: "Release"
PLATFORM: "Win32"
install:
- ECHO Installing %COMPILER% %PLATFORM% %CONFIGURATION%
- MKDIR bin
- if [%COMPILER%]==[gcc] SET PATH_ORIGINAL=%PATH%
- if [%COMPILER%]==[gcc] (
SET "PATH_MINGW32=c:\MinGW\bin;c:\MinGW\usr\bin" &&
SET "PATH_MINGW64=c:\msys64\mingw64\bin;c:\msys64\usr\bin" &&
COPY C:\msys64\usr\bin\make.exe C:\MinGW\bin\make.exe &&
COPY C:\MinGW\bin\gcc.exe C:\MinGW\bin\cc.exe
) else (
IF [%PLATFORM%]==[x64] (SET ADDITIONALPARAM=/p:LibraryPath="C:\Program Files\Microsoft SDKs\Windows\v7.1\lib\x64;c:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\lib\amd64;C:\Program Files (x86)\Microsoft Visual Studio 10.0\;C:\Program Files (x86)\Microsoft Visual Studio 10.0\lib\amd64;")
)
build_script:
- ECHO Building %COMPILER% %PLATFORM% %CONFIGURATION%
- if [%PLATFORM%]==[mingw32] SET PATH=%PATH_MINGW32%;%PATH_ORIGINAL%
- if [%PLATFORM%]==[mingw64] SET PATH=%PATH_MINGW64%;%PATH_ORIGINAL%
- if [%PLATFORM%]==[clang] SET PATH=%PATH_MINGW64%;%PATH_ORIGINAL%
- if [%COMPILER%]==[gcc] (
ECHO *** &&
ECHO *** Building %PLATFORM% &&
ECHO *** &&
make -v &&
cc -v &&
ECHO %MAKE_PARAMS% &&
sh -c %MAKE_PARAMS%
)
- if [%PLATFORM%]==[clang] COPY tests\fuzzer.exe tests\fuzzer_clang.exe
- if [%COMPILER%]==[gcc] if [%PLATFORM%]==[mingw64] (
COPY programs\zstd.exe bin\zstd.exe &&
appveyor PushArtifact bin\zstd.exe
)
- if [%COMPILER%]==[gcc] if [%PLATFORM%]==[mingw32] (
COPY programs\zstd.exe bin\zstd32.exe &&
appveyor PushArtifact bin\zstd32.exe
)
- if [%COMPILER%]==[gcc] make clean
- if [%COMPILER%]==[visual] (
ECHO *** &&
ECHO *** Building Visual Studio 2008 %PLATFORM%\%CONFIGURATION% in %APPVEYOR_BUILD_FOLDER% &&
ECHO *** &&
msbuild "build\VS2008\zstd.sln" /m /verbosity:minimal /property:PlatformToolset=v90 /t:Clean,Build /p:Platform=%PLATFORM% /p:Configuration=%CONFIGURATION% /logger:"C:\Program Files\AppVeyor\BuildAgent\Appveyor.MSBuildLogger.dll" &&
DIR build\VS2008\bin\%PLATFORM%\%CONFIGURATION%\*.exe &&
MD5sum build/VS2008/bin/%PLATFORM%/%CONFIGURATION%/*.exe &&
COPY build\VS2008\bin\%PLATFORM%\%CONFIGURATION%\fuzzer.exe tests\fuzzer_VS2008_%PLATFORM%_%CONFIGURATION%.exe &&
ECHO *** &&
ECHO *** Building Visual Studio 2010 %PLATFORM%\%CONFIGURATION% &&
ECHO *** &&
msbuild "build\VS2010\zstd.sln" %ADDITIONALPARAM% /m /verbosity:minimal /property:PlatformToolset=v100 /p:ForceImportBeforeCppTargets=%APPVEYOR_BUILD_FOLDER%\build\VS2010\CompileAsCpp.props /t:Clean,Build /p:Platform=%PLATFORM% /p:Configuration=%CONFIGURATION% /logger:"C:\Program Files\AppVeyor\BuildAgent\Appveyor.MSBuildLogger.dll" &&
DIR build\VS2010\bin\%PLATFORM%_%CONFIGURATION%\*.exe &&
MD5sum build/VS2010/bin/%PLATFORM%_%CONFIGURATION%/*.exe &&
msbuild "build\VS2010\zstd.sln" %ADDITIONALPARAM% /m /verbosity:minimal /property:PlatformToolset=v100 /t:Clean,Build /p:Platform=%PLATFORM% /p:Configuration=%CONFIGURATION% /logger:"C:\Program Files\AppVeyor\BuildAgent\Appveyor.MSBuildLogger.dll" &&
DIR build\VS2010\bin\%PLATFORM%_%CONFIGURATION%\*.exe &&
MD5sum build/VS2010/bin/%PLATFORM%_%CONFIGURATION%/*.exe &&
COPY build\VS2010\bin\%PLATFORM%_%CONFIGURATION%\fuzzer.exe tests\fuzzer_VS2010_%PLATFORM%_%CONFIGURATION%.exe &&
ECHO *** &&
ECHO *** Building Visual Studio 2012 %PLATFORM%\%CONFIGURATION% &&
ECHO *** &&
msbuild "build\VS2010\zstd.sln" /m /verbosity:minimal /property:PlatformToolset=v110 /p:ForceImportBeforeCppTargets=%APPVEYOR_BUILD_FOLDER%\build\VS2010\CompileAsCpp.props /t:Clean,Build /p:Platform=%PLATFORM% /p:Configuration=%CONFIGURATION% /logger:"C:\Program Files\AppVeyor\BuildAgent\Appveyor.MSBuildLogger.dll" &&
DIR build\VS2010\bin\%PLATFORM%_%CONFIGURATION%\*.exe &&
MD5sum build/VS2010/bin/%PLATFORM%_%CONFIGURATION%/*.exe &&
msbuild "build\VS2010\zstd.sln" /m /verbosity:minimal /property:PlatformToolset=v110 /t:Clean,Build /p:Platform=%PLATFORM% /p:Configuration=%CONFIGURATION% /logger:"C:\Program Files\AppVeyor\BuildAgent\Appveyor.MSBuildLogger.dll" &&
DIR build\VS2010\bin\%PLATFORM%_%CONFIGURATION%\*.exe &&
MD5sum build/VS2010/bin/%PLATFORM%_%CONFIGURATION%/*.exe &&
COPY build\VS2010\bin\%PLATFORM%_%CONFIGURATION%\fuzzer.exe tests\fuzzer_VS2012_%PLATFORM%_%CONFIGURATION%.exe &&
ECHO *** &&
ECHO *** Building Visual Studio 2013 %PLATFORM%\%CONFIGURATION% &&
ECHO *** &&
msbuild "build\VS2010\zstd.sln" /m /verbosity:minimal /property:PlatformToolset=v120 /p:ForceImportBeforeCppTargets=%APPVEYOR_BUILD_FOLDER%\build\VS2010\CompileAsCpp.props /t:Clean,Build /p:Platform=%PLATFORM% /p:Configuration=%CONFIGURATION% /logger:"C:\Program Files\AppVeyor\BuildAgent\Appveyor.MSBuildLogger.dll" &&
DIR build\VS2010\bin\%PLATFORM%_%CONFIGURATION%\*.exe &&
MD5sum build/VS2010/bin/%PLATFORM%_%CONFIGURATION%/*.exe &&
msbuild "build\VS2010\zstd.sln" /m /verbosity:minimal /property:PlatformToolset=v120 /t:Clean,Build /p:Platform=%PLATFORM% /p:Configuration=%CONFIGURATION% /logger:"C:\Program Files\AppVeyor\BuildAgent\Appveyor.MSBuildLogger.dll" &&
DIR build\VS2010\bin\%PLATFORM%_%CONFIGURATION%\*.exe &&
MD5sum build/VS2010/bin/%PLATFORM%_%CONFIGURATION%/*.exe &&
COPY build\VS2010\bin\%PLATFORM%_%CONFIGURATION%\fuzzer.exe tests\fuzzer_VS2013_%PLATFORM%_%CONFIGURATION%.exe &&
ECHO *** &&
ECHO *** Building Visual Studio 2015 %PLATFORM%\%CONFIGURATION% &&
ECHO *** &&
msbuild "build\VS2010\zstd.sln" /m /verbosity:minimal /property:PlatformToolset=v140 /p:ForceImportBeforeCppTargets=%APPVEYOR_BUILD_FOLDER%\build\VS2010\CompileAsCpp.props /t:Clean,Build /p:Platform=%PLATFORM% /p:Configuration=%CONFIGURATION% /logger:"C:\Program Files\AppVeyor\BuildAgent\Appveyor.MSBuildLogger.dll" &&
DIR build\VS2010\bin\%PLATFORM%_%CONFIGURATION%\*.exe &&
MD5sum build/VS2010/bin/%PLATFORM%_%CONFIGURATION%/*.exe &&
msbuild "build\VS2010\zstd.sln" /m /verbosity:minimal /property:PlatformToolset=v140 /t:Clean,Build /p:Platform=%PLATFORM% /p:Configuration=%CONFIGURATION% /logger:"C:\Program Files\AppVeyor\BuildAgent\Appveyor.MSBuildLogger.dll" &&
DIR build\VS2010\bin\%PLATFORM%_%CONFIGURATION%\*.exe &&
MD5sum build/VS2010/bin/%PLATFORM%_%CONFIGURATION%/*.exe &&
COPY build\VS2010\bin\%PLATFORM%_%CONFIGURATION%\fuzzer.exe tests\fuzzer_VS2015_%PLATFORM%_%CONFIGURATION%.exe &&
COPY build\VS2010\bin\%PLATFORM%_%CONFIGURATION%\*.exe tests\
)
test_script:
- ECHO Testing %COMPILER% %PLATFORM% %CONFIGURATION%
- SET FUZZERTEST=-T1mn
- if [%COMPILER%]==[gcc] if [%PLATFORM%]==[clang] (
tests\fuzzer_clang.exe %FUZZERTEST% &&
ECHO *** &&
ECHO *** Building cmake for %PLATFORM% &&
ECHO *** &&
mkdir build\cmake\build &&
cd build\cmake\build &&
cmake -G "Visual Studio 14 2015 Win64" .. &&
cd ..\..\.. &&
make clean &&
ECHO *** &&
ECHO *** Building pzstd for %PLATFORM% &&
ECHO *** &&
make -C contrib\pzstd googletest-mingw64 &&
make -C contrib\pzstd pzstd.exe &&
make -C contrib\pzstd tests &&
make -C contrib\pzstd check &&
make -C contrib\pzstd clean
)
- if [%COMPILER%]==[visual] if [%CONFIGURATION%]==[Release] (
CD tests &&
SET ZSTD=./zstd.exe &&
sh -e playTests.sh --test-large-data &&
fullbench.exe -i1 &&
fullbench.exe -i1 -P0 &&
fuzzer_VS2008_%PLATFORM%_Release.exe %FUZZERTEST% &&
fuzzer_VS2010_%PLATFORM%_Release.exe %FUZZERTEST% &&
fuzzer_VS2012_%PLATFORM%_Release.exe %FUZZERTEST% &&
fuzzer_VS2013_%PLATFORM%_Release.exe %FUZZERTEST% &&
fuzzer_VS2015_%PLATFORM%_Release.exe %FUZZERTEST%
)
branches:
only:
- dev
- master
artifacts:
- path: bin\zstd.exe
- path: bin\zstd32.exe
deploy:
- provider: GitHub
auth_token:
secure: LgJo8emYc3sFnlNWkGl4/VYK3nk/8+RagcsqDlAi3xeqNGNutnKjcftjg84uJoT4
artifact: bin\zstd.exe
force_update: true
on:
branch: autobuild
COMPILER: gcc
PLATFORM: "mingw64"
appveyor_repo_tag: true
- provider: GitHub
auth_token:
secure: LgJo8emYc3sFnlNWkGl4/VYK3nk/8+RagcsqDlAi3xeqNGNutnKjcftjg84uJoT4
artifact: bin\zstd32.exe
force_update: true
on:
branch: autobuild
COMPILER: gcc
PLATFORM: "mingw32"
appveyor_repo_tag: true

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# Visual C++
.vs/
*Copy
*.db
*.opensdf
*.sdf
*.suo
*.user
*.opendb
VS2005/
VS2008/
VS2010/bin/
VS2010/zwrapbench/
VS2012/bin/
VS2013/bin/
VS2015/bin/
# CMake
cmake/

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Projects for various integrated development environments (IDE)
==============================================================
#### Included projects
The following projects are included with the zstd distribution:
- `cmake` - CMake project contributed by Artyom Dymchenko
- `VS2005` - Visual Studio 2005 project
- `VS2008` - Visual Studio 2008 project
- `VS2010` - Visual Studio 2010 project (which also works well with Visual Studio 2012, 2013, 2015)
- `VS_scripts` - command line scripts prepared for Visual Studio compilation without IDE
#### How to compile zstd with Visual Studio
1. Install Visual Studio e.g. VS 2015 Community Edition (it's free).
2. Download the latest version of zstd from https://github.com/facebook/zstd/releases
3. Decompress ZIP archive.
4. Go to decompressed directory then to `projects` then `VS2010` and open `zstd.sln`
5. Visual Studio will ask about converting VS2010 project to VS2015 and you should agree.
6. Change `Debug` to `Release` and if you have 64-bit Windows change also `Win32` to `x64`.
7. Press F7 on keyboard or select `BUILD` from the menu bar and choose `Build Solution`.
8. If compilation will be fine a compiled executable will be in `projects\VS2010\bin\x64\Release\zstd.exe`
#### Projects available within zstd.sln
The Visual Studio solution file `visual\VS2010\zstd.sln` contains many projects that will be compiled to the
`visual\VS2010\bin\$(Platform)_$(Configuration)` directory. For example `zstd` set to `x64` and
`Release` will be compiled to `visual\VS2010\bin\x64_Release\zstd.exe`. The solution file contains the
following projects:
- `zstd` : Command Line Utility, supporting gzip-like arguments
- `datagen` : Synthetic and parametrable data generator, for tests
- `fullbench` : Precisely measure speed for each zstd inner functions
- `fuzzer` : Test tool, to check zstd integrity on target platform
- `libzstd` : A static ZSTD library compiled to `libzstd_static.lib`
- `libzstd-dll` : A dynamic ZSTD library (DLL) compiled to `libzstd.dll` with the import library `libzstd.lib`
- `fullbench-dll` : The fullbench program compiled with the import library; the executable requires ZSTD DLL
#### Using ZSTD DLL with Microsoft Visual C++ project
The header file `lib\zstd.h` and the import library
`visual\VS2010\bin\$(Platform)_$(Configuration)\libzstd.lib` are required to compile
a project using Visual C++.
1. The path to header files should be added to `Additional Include Directories` that can
be found in Project Properties of Visual Studio IDE in the `C/C++` Property Pages on the `General` page.
2. The import library has to be added to `Additional Dependencies` that can
be found in Project Properties in the `Linker` Property Pages on the `Input` page.
If one will provide only the name `libzstd.lib` without a full path to the library
then the directory has to be added to `Linker\General\Additional Library Directories`.
The compiled executable will require ZSTD DLL which is available at
`visual\VS2010\bin\$(Platform)_$(Configuration)\libzstd.dll`.

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@ -0,0 +1,55 @@
Microsoft Visual Studio Solution File, Format Version 9.00
# Visual C++ Express 2005
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zstd", "zstd\zstd.vcproj", "{1A2AB08E-5CE7-4C5B-BE55-458157C14051}"
EndProject
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "fuzzer", "fuzzer\fuzzer.vcproj", "{A62E89D2-9DDE-42BA-8F9B-9DA74889A6B0}"
EndProject
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "fullbench", "fullbench\fullbench.vcproj", "{CC8F1D1B-BA2F-43E3-A71F-FA415D81AAD3}"
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Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zstdlib", "zstdlib\zstdlib.vcproj", "{99DE2A79-7298-4004-A0ED-030D7A3796CA}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Win32 = Debug|Win32
Debug|x64 = Debug|x64
Release|Win32 = Release|Win32
Release|x64 = Release|x64
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{00000000-94D5-4BF9-8A50-7BD9929A0850}.Release|Win32.Build.0 = Release|Win32
{00000000-94D5-4BF9-8A50-7BD9929A0850}.Release|x64.ActiveCfg = Release|x64
{00000000-94D5-4BF9-8A50-7BD9929A0850}.Release|x64.Build.0 = Release|x64
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
EndGlobalSection
EndGlobal

View File

@ -0,0 +1,51 @@
// Microsoft Visual C++ generated resource script.
//
#include "zstd.h" /* ZSTD_VERSION_STRING */
#define APSTUDIO_READONLY_SYMBOLS
#include "verrsrc.h"
#undef APSTUDIO_READONLY_SYMBOLS
#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENU)
LANGUAGE 9, 1
/////////////////////////////////////////////////////////////////////////////
//
// Version
//
VS_VERSION_INFO VERSIONINFO
FILEVERSION ZSTD_VERSION_MAJOR,ZSTD_VERSION_MINOR,ZSTD_VERSION_RELEASE,0
PRODUCTVERSION ZSTD_VERSION_MAJOR,ZSTD_VERSION_MINOR,ZSTD_VERSION_RELEASE,0
FILEFLAGSMASK VS_FFI_FILEFLAGSMASK
#ifdef _DEBUG
FILEFLAGS VS_FF_DEBUG
#else
FILEFLAGS 0x0L
#endif
FILEOS VOS_NT_WINDOWS32
FILETYPE VFT_DLL
FILESUBTYPE VFT2_UNKNOWN
BEGIN
BLOCK "StringFileInfo"
BEGIN
BLOCK "040904B0"
BEGIN
VALUE "CompanyName", "Yann Collet, Facebook, Inc."
VALUE "FileDescription", "Zstandard - Fast and efficient compression algorithm"
VALUE "FileVersion", ZSTD_VERSION_STRING
VALUE "InternalName", "zstd.exe"
VALUE "LegalCopyright", "Copyright (c) 2013-present, Yann Collet, Facebook, Inc."
VALUE "OriginalFilename", "zstd.exe"
VALUE "ProductName", "Zstandard"
VALUE "ProductVersion", ZSTD_VERSION_STRING
END
END
BLOCK "VarFileInfo"
BEGIN
VALUE "Translation", 0x0409, 1200
END
END
#endif

View File

@ -0,0 +1,230 @@
<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ItemGroup Label="ProjectConfigurations">
<ProjectConfiguration Include="Debug|Win32">
<Configuration>Debug</Configuration>
<Platform>Win32</Platform>
</ProjectConfiguration>
<ProjectConfiguration Include="Debug|x64">
<Configuration>Debug</Configuration>
<Platform>x64</Platform>
</ProjectConfiguration>
<ProjectConfiguration Include="Release|Win32">
<Configuration>Release</Configuration>
<Platform>Win32</Platform>
</ProjectConfiguration>
<ProjectConfiguration Include="Release|x64">
<Configuration>Release</Configuration>
<Platform>x64</Platform>
</ProjectConfiguration>
</ItemGroup>
<ItemGroup>
<ClCompile Include="..\..\..\lib\common\entropy_common.c" />
<ClCompile Include="..\..\..\lib\common\error_private.c" />
<ClCompile Include="..\..\..\lib\common\pool.c" />
<ClCompile Include="..\..\..\lib\common\threading.c" />
<ClCompile Include="..\..\..\lib\common\xxhash.c" />
<ClCompile Include="..\..\..\lib\common\zstd_common.c" />
<ClCompile Include="..\..\..\lib\common\fse_decompress.c" />
<ClCompile Include="..\..\..\lib\compress\fse_compress.c" />
<ClCompile Include="..\..\..\lib\compress\huf_compress.c" />
<ClCompile Include="..\..\..\lib\compress\zstdmt_compress.c" />
<ClCompile Include="..\..\..\lib\compress\zstd_compress.c" />
<ClCompile Include="..\..\..\lib\decompress\huf_decompress.c" />
<ClCompile Include="..\..\..\lib\decompress\zstd_decompress.c" />
<ClCompile Include="..\..\..\lib\dictBuilder\cover.c" />
<ClCompile Include="..\..\..\lib\dictBuilder\divsufsort.c" />
<ClCompile Include="..\..\..\lib\dictBuilder\zdict.c" />
<ClCompile Include="..\..\..\lib\legacy\zstd_v01.c" />
<ClCompile Include="..\..\..\lib\legacy\zstd_v02.c" />
<ClCompile Include="..\..\..\lib\legacy\zstd_v03.c" />
<ClCompile Include="..\..\..\lib\legacy\zstd_v04.c" />
<ClCompile Include="..\..\..\lib\legacy\zstd_v05.c" />
<ClCompile Include="..\..\..\lib\legacy\zstd_v06.c" />
<ClCompile Include="..\..\..\lib\legacy\zstd_v07.c" />
<ClCompile Include="..\..\..\programs\bench.c" />
<ClCompile Include="..\..\..\programs\datagen.c" />
<ClCompile Include="..\..\..\programs\dibio.c" />
<ClCompile Include="..\..\..\programs\fileio.c" />
<ClCompile Include="..\..\..\programs\zstdcli.c" />
</ItemGroup>
<ItemGroup>
<ClInclude Include="..\..\..\lib\common\pool.h" />
<ClInclude Include="..\..\..\lib\common\threading.h" />
<ClInclude Include="..\..\..\lib\common\xxhash.h" />
<ClInclude Include="..\..\..\lib\compress\zstdmt_compress.h" />
<ClInclude Include="..\..\..\lib\dictBuilder\zdict.h" />
<ClInclude Include="..\..\..\lib\dictBuilder\divsufsort.h" />
<ClInclude Include="..\..\..\lib\common\fse.h" />
<ClInclude Include="..\..\..\lib\common\huf.h" />
<ClInclude Include="..\..\..\lib\zstd.h" />
<ClInclude Include="..\..\..\lib\common\zstd_internal.h" />
<ClInclude Include="..\..\..\lib\common\zstd_errors.h" />
<ClInclude Include="..\..\..\lib\compress\zstd_opt.h" />
<ClInclude Include="..\..\..\lib\legacy\zstd_legacy.h" />
<ClInclude Include="..\..\..\lib\legacy\zstd_v01.h" />
<ClInclude Include="..\..\..\lib\legacy\zstd_v02.h" />
<ClInclude Include="..\..\..\lib\legacy\zstd_v03.h" />
<ClInclude Include="..\..\..\lib\legacy\zstd_v04.h" />
<ClInclude Include="..\..\..\lib\legacy\zstd_v05.h" />
<ClInclude Include="..\..\..\lib\legacy\zstd_v06.h" />
<ClInclude Include="..\..\..\lib\legacy\zstd_v07.h" />
<ClInclude Include="..\..\..\programs\bench.h" />
<ClInclude Include="..\..\..\programs\datagen.h" />
<ClInclude Include="..\..\..\programs\dibio.h" />
<ClInclude Include="..\..\..\programs\fileio.h" />
<ClInclude Include="..\..\..\programs\platform.h" />
<ClInclude Include="..\..\..\programs\util.h" />
</ItemGroup>
<ItemGroup>
<ResourceCompile Include="zstd.rc" />
</ItemGroup>
<PropertyGroup Label="Globals">
<ProjectGuid>{4E52A41A-F33B-4C7A-8C36-A1A6B4F4277C}</ProjectGuid>
<Keyword>Win32Proj</Keyword>
<RootNamespace>zstd</RootNamespace>
<OutDir>$(SolutionDir)bin\$(Platform)_$(Configuration)\</OutDir>
<IntDir>$(SolutionDir)bin\obj\$(RootNamespace)_$(Platform)_$(Configuration)\</IntDir>
</PropertyGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>true</UseDebugLibraries>
<CharacterSet>MultiByte</CharacterSet>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>true</UseDebugLibraries>
<CharacterSet>MultiByte</CharacterSet>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>false</UseDebugLibraries>
<WholeProgramOptimization>true</WholeProgramOptimization>
<CharacterSet>MultiByte</CharacterSet>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>false</UseDebugLibraries>
<WholeProgramOptimization>true</WholeProgramOptimization>
<CharacterSet>MultiByte</CharacterSet>
</PropertyGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
<ImportGroup Label="ExtensionSettings">
</ImportGroup>
<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
</ImportGroup>
<ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="PropertySheets">
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
</ImportGroup>
<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
</ImportGroup>
<ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="PropertySheets">
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
</ImportGroup>
<PropertyGroup Label="UserMacros" />
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
<LinkIncremental>true</LinkIncremental>
<IncludePath>$(IncludePath);$(SolutionDir)..\..\lib;$(SolutionDir)..\..\lib\compress;$(SolutionDir)..\..\lib\legacy;$(SolutionDir)..\..\lib\common;$(SolutionDir)..\..\lib\dictBuilder;$(UniversalCRT_IncludePath);</IncludePath>
<RunCodeAnalysis>false</RunCodeAnalysis>
<LibraryPath>$(LibraryPath)</LibraryPath>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
<LinkIncremental>true</LinkIncremental>
<IncludePath>$(IncludePath);$(SolutionDir)..\..\lib;$(SolutionDir)..\..\lib\compress;$(SolutionDir)..\..\lib\legacy;$(SolutionDir)..\..\lib\common;$(SolutionDir)..\..\lib\dictBuilder;$(UniversalCRT_IncludePath);</IncludePath>
<RunCodeAnalysis>false</RunCodeAnalysis>
<LibraryPath>$(LibraryPath);</LibraryPath>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
<LinkIncremental>false</LinkIncremental>
<IncludePath>$(IncludePath);$(SolutionDir)..\..\lib;$(SolutionDir)..\..\lib\compress;$(SolutionDir)..\..\lib\legacy;$(SolutionDir)..\..\lib\common;$(SolutionDir)..\..\lib\dictBuilder;$(UniversalCRT_IncludePath);</IncludePath>
<RunCodeAnalysis>false</RunCodeAnalysis>
<LibraryPath>$(LibraryPath)</LibraryPath>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
<LinkIncremental>false</LinkIncremental>
<IncludePath>$(IncludePath);$(SolutionDir)..\..\lib;$(SolutionDir)..\..\lib\compress;$(SolutionDir)..\..\lib\legacy;$(SolutionDir)..\..\lib\common;$(SolutionDir)..\..\lib\dictBuilder;$(UniversalCRT_IncludePath);</IncludePath>
<RunCodeAnalysis>false</RunCodeAnalysis>
<LibraryPath>$(LibraryPath);</LibraryPath>
</PropertyGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
<ClCompile>
<PrecompiledHeader>
</PrecompiledHeader>
<WarningLevel>Level4</WarningLevel>
<Optimization>Disabled</Optimization>
<PreprocessorDefinitions>ZSTD_LEGACY_SUPPORT=4;WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<TreatWarningAsError>true</TreatWarningAsError>
<EnablePREfast>false</EnablePREfast>
</ClCompile>
<Link>
<SubSystem>Console</SubSystem>
<GenerateDebugInformation>true</GenerateDebugInformation>
<AdditionalDependencies>setargv.obj;%(AdditionalDependencies)</AdditionalDependencies>
</Link>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
<ClCompile>
<PrecompiledHeader>
</PrecompiledHeader>
<WarningLevel>Level4</WarningLevel>
<Optimization>Disabled</Optimization>
<PreprocessorDefinitions>ZSTD_LEGACY_SUPPORT=4;WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<TreatWarningAsError>true</TreatWarningAsError>
<EnablePREfast>false</EnablePREfast>
</ClCompile>
<Link>
<SubSystem>Console</SubSystem>
<GenerateDebugInformation>true</GenerateDebugInformation>
<AdditionalDependencies>setargv.obj;%(AdditionalDependencies)</AdditionalDependencies>
</Link>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
<ClCompile>
<WarningLevel>Level4</WarningLevel>
<PrecompiledHeader>
</PrecompiledHeader>
<Optimization>MaxSpeed</Optimization>
<FunctionLevelLinking>true</FunctionLevelLinking>
<IntrinsicFunctions>true</IntrinsicFunctions>
<PreprocessorDefinitions>ZSTD_LEGACY_SUPPORT=4;WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<EnablePREfast>false</EnablePREfast>
<TreatWarningAsError>false</TreatWarningAsError>
<RuntimeLibrary>MultiThreaded</RuntimeLibrary>
</ClCompile>
<Link>
<SubSystem>Console</SubSystem>
<GenerateDebugInformation>true</GenerateDebugInformation>
<EnableCOMDATFolding>true</EnableCOMDATFolding>
<OptimizeReferences>true</OptimizeReferences>
<AdditionalDependencies>setargv.obj;%(AdditionalDependencies)</AdditionalDependencies>
</Link>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
<ClCompile>
<WarningLevel>Level4</WarningLevel>
<PrecompiledHeader>
</PrecompiledHeader>
<Optimization>MaxSpeed</Optimization>
<FunctionLevelLinking>true</FunctionLevelLinking>
<IntrinsicFunctions>true</IntrinsicFunctions>
<PreprocessorDefinitions>ZSTD_LEGACY_SUPPORT=4;WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<TreatWarningAsError>false</TreatWarningAsError>
<EnablePREfast>false</EnablePREfast>
<RuntimeLibrary>MultiThreaded</RuntimeLibrary>
<AdditionalOptions>/DZSTD_MULTITHREAD %(AdditionalOptions)</AdditionalOptions>
</ClCompile>
<Link>
<SubSystem>Console</SubSystem>
<GenerateDebugInformation>true</GenerateDebugInformation>
<EnableCOMDATFolding>true</EnableCOMDATFolding>
<OptimizeReferences>true</OptimizeReferences>
<AdditionalDependencies>setargv.obj;%(AdditionalDependencies)</AdditionalDependencies>
</Link>
</ItemDefinitionGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
<ImportGroup Label="ExtensionTargets">
</ImportGroup>
</Project>

View File

@ -0,0 +1,54 @@
Command line scripts for Visual Studio compilation without IDE
==============================================================
Here are a few command lines for reference :
### Build with Visual Studio 2013 for msvcr120.dll
Running the following command will build both the `Release Win32` and `Release x64` versions:
```batch
build\build.VS2013.cmd
```
The result of each build will be in the corresponding `build\bin\Release\{ARCH}\` folder.
If you want to only need one architecture:
- Win32: `build\build.generic.cmd VS2013 Win32 Release v120`
- x64: `build\build.generic.cmd VS2013 x64 Release v120`
If you want a Debug build:
- Win32: `build\build.generic.cmd VS2013 Win32 Debug v120`
- x64: `build\build.generic.cmd VS2013 x64 Debug v120`
### Build with Visual Studio 2015 for msvcr140.dll
Running the following command will build both the `Release Win32` and `Release x64` versions:
```batch
build\build.VS2015.cmd
```
The result of each build will be in the corresponding `build\bin\Release\{ARCH}\` folder.
If you want to only need one architecture:
- Win32: `build\build.generic.cmd VS2015 Win32 Release v140`
- x64: `build\build.generic.cmd VS2015 x64 Release v140`
If you want a Debug build:
- Win32: `build\build.generic.cmd VS2015 Win32 Debug v140`
- x64: `build\build.generic.cmd VS2015 x64 Debug v140`
### Build with Visual Studio 2015 for msvcr120.dll
You need to invoke `build\build.generic.cmd` with the proper arguments:
**For Win32**
```batch
build\build.generic.cmd VS2015 Win32 Release v120
```
The result of the build will be in the `build\bin\Release\Win32\` folder.
**For x64**
```batch
build\build.generic.cmd VS2015 x64 Release v120
```
The result of the build will be in the `build\bin\Release\x64\` folder.
If you want Debug builds, replace `Release` with `Debug`.

View File

@ -0,0 +1,7 @@
@echo off
rem build 32-bit
call "%~p0%build.generic.cmd" VS2010 Win32 Release v100
rem build 64-bit
call "%~p0%build.generic.cmd" VS2010 x64 Release v100

View File

@ -0,0 +1,6 @@
@echo off
rem build 32-bit
call "%~p0%build.generic.cmd" VS2012 Win32 Release v110
rem build 64-bit
call "%~p0%build.generic.cmd" VS2012 x64 Release v110

View File

@ -0,0 +1,7 @@
@echo off
rem build 32-bit
call "%~p0%build.generic.cmd" VS2013 Win32 Release v120
rem build 64-bit
call "%~p0%build.generic.cmd" VS2013 x64 Release v120

View File

@ -0,0 +1,7 @@
@echo off
rem build 32-bit
call "%~p0%build.generic.cmd" VS2015 Win32 Release v140
rem build 64-bit
call "%~p0%build.generic.cmd" VS2015 x64 Release v140

View File

@ -0,0 +1,52 @@
@echo off
IF "%1%" == "" GOTO display_help
SETLOCAL
SET msbuild_version=%1
SET msbuild_platform=%2
IF "%msbuild_platform%" == "" SET msbuild_platform=x64
SET msbuild_configuration=%3
IF "%msbuild_configuration%" == "" SET msbuild_configuration=Release
SET msbuild_toolset=%4
GOTO build
:display_help
echo Syntax: build.generic.cmd msbuild_version msbuild_platform msbuild_configuration msbuild_toolset
echo msbuild_version: VS installed version (VS2012, VS2013, VS2015, ...)
echo msbuild_platform: Platform (x64 or Win32)
echo msbuild_configuration: VS configuration (Release or Debug)
echo msbuild_toolset: Platform Toolset (v100, v110, v120, v140)
EXIT /B 1
:build
SET msbuild="%windir%\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
IF %msbuild_version% == VS2013 SET msbuild="%programfiles(x86)%\MSBuild\12.0\Bin\MSBuild.exe"
IF %msbuild_version% == VS2015 SET msbuild="%programfiles(x86)%\MSBuild\14.0\Bin\MSBuild.exe"
rem TODO: Visual Studio "15" (vNext) will use MSBuild 15.0 ?
SET project="%~p0\..\VS2010\zstd.sln"
SET msbuild_params=/verbosity:minimal /nologo /t:Clean,Build /p:Platform=%msbuild_platform% /p:Configuration=%msbuild_configuration%
IF NOT "%msbuild_toolset%" == "" SET msbuild_params=%msbuild_params% /p:PlatformToolset=%msbuild_toolset%
SET output=%~p0%bin
SET output="%output%/%msbuild_configuration%/%msbuild_platform%/"
SET msbuild_params=%msbuild_params% /p:OutDir=%output%
echo ### Building %msbuild_version% project for %msbuild_configuration% %msbuild_platform% (%msbuild_toolset%)...
echo ### Build Params: %msbuild_params%
%msbuild% %project% %msbuild_params%
IF ERRORLEVEL 1 EXIT /B 1
echo # Success
echo # OutDir: %output%
echo #

6
contrib/zstd/build/cmake/.gitignore vendored Normal file
View File

@ -0,0 +1,6 @@
# cmake producted
CMakeCache.txt
CMakeFiles
Makefile
cmake_install.cmake
cmake_uninstall.cmake

View File

@ -0,0 +1,41 @@
# ################################################################
# Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
# All rights reserved.
#
# This source code is licensed under the BSD-style license found in the
# LICENSE file in the root directory of this source tree. An additional grant
# of patent rights can be found in the PATENTS file in the same directory.
# ################################################################
PROJECT(zstd)
CMAKE_MINIMUM_REQUIRED(VERSION 2.8.7)
OPTION(ZSTD_LEGACY_SUPPORT "LEGACY SUPPORT" OFF)
OPTION(ZSTD_MULTITHREAD_SUPPORT "MULTITHREADING SUPPORT" ON)
OPTION(ZSTD_BUILD_CONTRIB "BUILD CONTRIB" OFF)
IF (ZSTD_LEGACY_SUPPORT)
MESSAGE(STATUS "ZSTD_LEGACY_SUPPORT defined!")
ADD_DEFINITIONS(-DZSTD_LEGACY_SUPPORT=4)
ELSE (ZSTD_LEGACY_SUPPORT)
MESSAGE(STATUS "ZSTD_LEGACY_SUPPORT not defined!")
ADD_DEFINITIONS(-DZSTD_LEGACY_SUPPORT=0)
ENDIF (ZSTD_LEGACY_SUPPORT)
ADD_SUBDIRECTORY(lib)
ADD_SUBDIRECTORY(programs)
ADD_SUBDIRECTORY(tests)
IF (ZSTD_BUILD_CONTRIB)
ADD_SUBDIRECTORY(contrib)
ENDIF (ZSTD_BUILD_CONTRIB)
#-----------------------------------------------------------------------------
# Add extra compilation flags
#-----------------------------------------------------------------------------
INCLUDE(CMakeModules/AddExtraCompilationFlags.cmake)
ADD_EXTRA_COMPILATION_FLAGS()
ADD_CUSTOM_TARGET(clean-all
COMMAND ${CMAKE_BUILD_TOOL} clean
COMMAND rm -rf ${CMAKE_BINARY_DIR}/
)

View File

@ -0,0 +1,329 @@
MACRO(ADD_EXTRA_COMPILATION_FLAGS)
include(CheckCXXCompilerFlag)
include(CheckCCompilerFlag)
if (CMAKE_COMPILER_IS_GNUCXX OR MINGW) #Not only UNIX but also WIN32 for MinGW
set(POSITION_INDEPENDENT_CODE_FLAG "-fPIC")
CHECK_C_COMPILER_FLAG(${POSITION_INDEPENDENT_CODE_FLAG} POSITION_INDEPENDENT_CODE_FLAG_ALLOWED)
if (POSITION_INDEPENDENT_CODE_FLAG_ALLOWED)
MESSAGE("Compiler flag ${POSITION_INDEPENDENT_CODE_FLAG} allowed")
set(ACTIVATE_POSITION_INDEPENDENT_CODE_FLAG "ON" CACHE BOOL "activate -fPIC flag")
else ()
MESSAGE("Compiler flag ${POSITION_INDEPENDENT_CODE_FLAG} not allowed")
endif (POSITION_INDEPENDENT_CODE_FLAG_ALLOWED)
set(WARNING_UNDEF "-Wundef")
CHECK_C_COMPILER_FLAG(${WARNING_UNDEF} WARNING_UNDEF_ALLOWED)
if (WARNING_UNDEF_ALLOWED)
MESSAGE("Compiler flag ${WARNING_UNDEF} allowed")
set(ACTIVATE_WARNING_UNDEF "ON" CACHE BOOL "activate -Wundef flag")
else ()
MESSAGE("Compiler flag ${WARNING_UNDEF} not allowed")
endif (WARNING_UNDEF_ALLOWED)
set(WARNING_SHADOW "-Wshadow")
CHECK_C_COMPILER_FLAG(${WARNING_SHADOW} WARNING_SHADOW_ALLOWED)
if (WARNING_SHADOW_ALLOWED)
MESSAGE("Compiler flag ${WARNING_SHADOW} allowed")
set(ACTIVATE_WARNING_SHADOW "ON" CACHE BOOL "activate -Wshadow flag")
else ()
MESSAGE("Compiler flag ${WARNING_SHADOW} not allowed")
endif (WARNING_SHADOW_ALLOWED)
set(WARNING_CAST_ALIGN "-Wcast-align")
CHECK_C_COMPILER_FLAG(${WARNING_CAST_ALIGN} WARNING_CAST_ALIGN_ALLOWED)
if (WARNING_CAST_ALIGN_ALLOWED)
MESSAGE("Compiler flag ${WARNING_CAST_ALIGN} allowed")
set(ACTIVATE_WARNING_CAST_ALIGN "ON" CACHE BOOL "activate -Wcast-align flag")
else ()
MESSAGE("Compiler flag ${WARNING_CAST_ALIGN} not allowed")
endif (WARNING_CAST_ALIGN_ALLOWED)
set(WARNING_CAST_QUAL "-Wcast-qual")
CHECK_C_COMPILER_FLAG(${WARNING_CAST_QUAL} WARNING_CAST_QUAL_ALLOWED)
if (WARNING_CAST_QUAL_ALLOWED)
MESSAGE("Compiler flag ${WARNING_CAST_QUAL} allowed")
set(ACTIVATE_WARNING_CAST_QUAL "ON" CACHE BOOL "activate -Wcast-qual flag")
else ()
MESSAGE("Compiler flag ${WARNING_CAST_QUAL} not allowed")
endif (WARNING_CAST_QUAL_ALLOWED)
set(WARNING_STRICT_PROTOTYPES "-Wstrict-prototypes")
CHECK_C_COMPILER_FLAG(${WARNING_STRICT_PROTOTYPES} WARNING_STRICT_PROTOTYPES_ALLOWED)
if (WARNING_STRICT_PROTOTYPES_ALLOWED)
MESSAGE("Compiler flag ${WARNING_STRICT_PROTOTYPES} allowed")
set(ACTIVATE_WARNING_STRICT_PROTOTYPES "ON" CACHE BOOL "activate -Wstrict-prototypes flag")
else ()
MESSAGE("Compiler flag ${WARNING_STRICT_PROTOTYPES} not allowed")
endif (WARNING_STRICT_PROTOTYPES_ALLOWED)
set(WARNING_ALL "-Wall")
CHECK_C_COMPILER_FLAG(${WARNING_ALL} WARNING_ALL_ALLOWED)
if (WARNING_ALL_ALLOWED)
MESSAGE("Compiler flag ${WARNING_ALL} allowed")
set(ACTIVATE_WARNING_ALL "ON" CACHE BOOL "activate -Wall flag")
else ()
MESSAGE("Compiler flag ${WARNING_ALL} not allowed")
endif (WARNING_ALL_ALLOWED)
set(WARNING_EXTRA "-Wextra")
CHECK_C_COMPILER_FLAG(${WARNING_EXTRA} WARNING_EXTRA_ALLOWED)
if (WARNING_EXTRA_ALLOWED)
MESSAGE("Compiler flag ${WARNING_EXTRA} allowed")
set(ACTIVATE_WARNING_EXTRA "ON" CACHE BOOL "activate -Wextra flag")
else ()
MESSAGE("Compiler flag ${WARNING_EXTRA} not allowed")
endif (WARNING_EXTRA_ALLOWED)
set(WARNING_FLOAT_EQUAL "-Wfloat-equal")
CHECK_C_COMPILER_FLAG(${WARNING_FLOAT_EQUAL} WARNING_FLOAT_EQUAL_ALLOWED)
if (WARNING_FLOAT_EQUAL_ALLOWED)
MESSAGE("Compiler flag ${WARNING_FLOAT_EQUAL} allowed")
set(ACTIVATE_WARNING_FLOAT_EQUAL "OFF" CACHE BOOL "activate -Wfloat-equal flag")
else ()
MESSAGE("Compiler flag ${WARNING_FLOAT_EQUAL} not allowed")
endif (WARNING_FLOAT_EQUAL_ALLOWED)
set(WARNING_SIGN_CONVERSION "-Wsign-conversion")
CHECK_C_COMPILER_FLAG(${WARNING_SIGN_CONVERSION} WARNING_SIGN_CONVERSION_ALLOWED)
if (WARNING_SIGN_CONVERSION_ALLOWED)
MESSAGE("Compiler flag ${WARNING_SIGN_CONVERSION} allowed")
set(ACTIVATE_WARNING_SIGN_CONVERSION "OFF" CACHE BOOL "activate -Wsign-conversion flag")
else ()
MESSAGE("Compiler flag ${WARNING_SIGN_CONVERSION} not allowed")
endif (WARNING_SIGN_CONVERSION_ALLOWED)
if (ACTIVATE_POSITION_INDEPENDENT_CODE_FLAG)
list(APPEND CMAKE_C_FLAGS ${POSITION_INDEPENDENT_CODE_FLAG})
else ()
string(REPLACE ${POSITION_INDEPENDENT_CODE_FLAG} "" CMAKE_C_FLAGS "${POSITION_INDEPENDENT_CODE_FLAG}")
endif (ACTIVATE_POSITION_INDEPENDENT_CODE_FLAG)
if (ACTIVATE_WARNING_UNDEF)
list(APPEND CMAKE_CXX_FLAGS ${WARNING_UNDEF})
list(APPEND CMAKE_C_FLAGS ${WARNING_UNDEF})
else ()
string(REPLACE ${WARNING_UNDEF} "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
string(REPLACE ${WARNING_UNDEF} "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
endif (ACTIVATE_WARNING_UNDEF)
if (ACTIVATE_WARNING_SHADOW)
list(APPEND CMAKE_CXX_FLAGS ${WARNING_SHADOW})
list(APPEND CMAKE_C_FLAGS ${WARNING_SHADOW})
else ()
string(REPLACE ${WARNING_SHADOW} "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
string(REPLACE ${WARNING_SHADOW} "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
endif (ACTIVATE_WARNING_SHADOW)
if (ACTIVATE_WARNING_CAST_QUAL)
list(APPEND CMAKE_CXX_FLAGS ${WARNING_CAST_QUAL})
list(APPEND CMAKE_C_FLAGS ${WARNING_CAST_QUAL})
else ()
string(REPLACE ${WARNING_CAST_QUAL} "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
string(REPLACE ${WARNING_CAST_QUAL} "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
endif (ACTIVATE_WARNING_CAST_QUAL)
if (ACTIVATE_WARNING_CAST_ALIGN)
list(APPEND CMAKE_CXX_FLAGS ${WARNING_CAST_ALIGN})
list(APPEND CMAKE_C_FLAGS ${WARNING_CAST_ALIGN})
else ()
string(REPLACE ${WARNING_CAST_ALIGN} "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
string(REPLACE ${WARNING_CAST_ALIGN} "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
endif (ACTIVATE_WARNING_CAST_ALIGN)
if (ACTIVATE_WARNING_STRICT_PROTOTYPES)
list(APPEND CMAKE_C_FLAGS ${WARNING_STRICT_PROTOTYPES})
else ()
string(REPLACE ${WARNING_STRICT_PROTOTYPES} "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
endif (ACTIVATE_WARNING_STRICT_PROTOTYPES)
if (ACTIVATE_WARNING_ALL)
list(APPEND CMAKE_CXX_FLAGS ${WARNING_ALL})
list(APPEND CMAKE_C_FLAGS ${WARNING_ALL})
else ()
string(REPLACE ${WARNING_ALL} "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
string(REPLACE ${WARNING_ALL} "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
endif (ACTIVATE_WARNING_ALL)
if (ACTIVATE_WARNING_EXTRA)
list(APPEND CMAKE_CXX_FLAGS ${WARNING_EXTRA})
list(APPEND CMAKE_C_FLAGS ${WARNING_EXTRA})
else ()
string(REPLACE ${WARNING_EXTRA} "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
string(REPLACE ${WARNING_EXTRA} "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
endif (ACTIVATE_WARNING_EXTRA)
if (ACTIVATE_WARNING_FLOAT_EQUAL)
list(APPEND CMAKE_CXX_FLAGS ${WARNING_FLOAT_EQUAL})
list(APPEND CMAKE_C_FLAGS ${WARNING_FLOAT_EQUAL})
else ()
string(REPLACE ${WARNING_FLOAT_EQUAL} "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
string(REPLACE ${WARNING_FLOAT_EQUAL} "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
endif (ACTIVATE_WARNING_FLOAT_EQUAL)
if (ACTIVATE_WARNING_SIGN_CONVERSION)
list(APPEND CMAKE_CXX_FLAGS ${WARNING_SIGN_CONVERSION})
list(APPEND CMAKE_C_FLAGS ${WARNING_SIGN_CONVERSION})
else ()
string(REPLACE ${WARNING_SIGN_CONVERSION} "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
string(REPLACE ${WARNING_SIGN_CONVERSION} "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
endif (ACTIVATE_WARNING_SIGN_CONVERSION)
#Set c++11 by default
list(APPEND CMAKE_CXX_FLAGS "-std=c++11")
#Set c99 by default
list(APPEND CMAKE_C_FLAGS "-std=c99")
elseif (MSVC)
# Add specific compilation flags for Windows Visual
set(WARNING_ALL "/Wall")
CHECK_C_COMPILER_FLAG(${WARNING_ALL} WARNING_ALL_ALLOWED)
if (WARNING_ALL_ALLOWED)
MESSAGE("Compiler flag ${WARNING_ALL} allowed")
set(ACTIVATE_WARNING_ALL "OFF" CACHE BOOL "activate /Wall flag")
else ()
MESSAGE("Compiler flag ${WARNING_ALL} not allowed")
endif (WARNING_ALL_ALLOWED)
set(RTC_FLAG "/RTC1")
CHECK_C_COMPILER_FLAG(${RTC_FLAG} RTC_FLAG_ALLOWED)
if (RTC_FLAG_ALLOWED)
MESSAGE("Compiler flag ${RTC_FLAG} allowed")
set(ACTIVATE_RTC_FLAG "ON" CACHE BOOL "activate /RTC1 flag")
else ()
MESSAGE("Compiler flag ${RTC_FLAG} not allowed")
endif (RTC_FLAG_ALLOWED)
set(ZC_FLAG "/Zc:forScope")
CHECK_C_COMPILER_FLAG(${ZC_FLAG} ZC_FLAG_ALLOWED)
if (ZC_FLAG_ALLOWED)
MESSAGE("Compiler flag ${ZC_FLAG} allowed")
set(ACTIVATE_ZC_FLAG "ON" CACHE BOOL "activate /Zc:forScope flag")
else ()
MESSAGE("Compiler flag ${ZC_FLAG} not allowed")
endif (ZC_FLAG_ALLOWED)
set(GD_FLAG "/Gd")
CHECK_C_COMPILER_FLAG(${GD_FLAG} GD_FLAG_ALLOWED)
if (GD_FLAG_ALLOWED)
MESSAGE("Compiler flag ${GD_FLAG} allowed")
set(ACTIVATE_GD_FLAG "ON" CACHE BOOL "activate /Gd flag")
else ()
MESSAGE("Compiler flag ${GD_FLAG} not allowed")
endif (GD_FLAG_ALLOWED)
set(ANALYZE_FLAG "/analyze:stacksize25000")
CHECK_C_COMPILER_FLAG(${ANALYZE_FLAG} ANALYZE_FLAG_ALLOWED)
if (ANALYZE_FLAG_ALLOWED)
MESSAGE("Compiler flag ${ANALYZE_FLAG} allowed")
set(ACTIVATE_ANALYZE_FLAG "ON" CACHE BOOL "activate /ANALYZE flag")
else ()
MESSAGE("Compiler flag ${ANALYZE_FLAG} not allowed")
endif (ANALYZE_FLAG_ALLOWED)
if (ACTIVATE_WARNING_ALL)
list(APPEND CMAKE_CXX_FLAGS ${WARNING_ALL})
list(APPEND CMAKE_C_FLAGS ${WARNING_ALL})
else ()
string(REPLACE ${WARNING_ALL} "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
string(REPLACE ${WARNING_ALL} "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
endif (ACTIVATE_WARNING_ALL)
# Only for DEBUG version
if (ACTIVATE_RTC_FLAG)
list(APPEND CMAKE_CXX_FLAGS_DEBUG ${RTC_FLAG})
list(APPEND CMAKE_C_FLAGS_DEBUG ${RTC_FLAG})
else ()
string(REPLACE ${RTC_FLAG} "" CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG}")
string(REPLACE ${RTC_FLAG} "" CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG}")
endif (ACTIVATE_RTC_FLAG)
if (ACTIVATE_ZC_FLAG)
list(APPEND CMAKE_CXX_FLAGS ${ZC_FLAG})
list(APPEND CMAKE_C_FLAGS ${ZC_FLAG})
else ()
string(REPLACE ${ZC_FLAG} "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
string(REPLACE ${ZC_FLAG} "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
endif (ACTIVATE_ZC_FLAG)
if (ACTIVATE_GD_FLAG)
list(APPEND CMAKE_CXX_FLAGS ${GD_FLAG})
list(APPEND CMAKE_C_FLAGS ${GD_FLAG})
else ()
string(REPLACE ${GD_FLAG} "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
string(REPLACE ${GD_FLAG} "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
endif (ACTIVATE_GD_FLAG)
if (ACTIVATE_ANALYZE_FLAG)
list(APPEND CMAKE_CXX_FLAGS ${ANALYZE_FLAG})
list(APPEND CMAKE_C_FLAGS ${ANALYZE_FLAG})
else ()
string(REPLACE ${ANALYZE_FLAG} "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
string(REPLACE ${ANALYZE_FLAG} "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
endif (ACTIVATE_ANALYZE_FLAG)
if (MSVC80 OR MSVC90 OR MSVC10 OR MSVC11)
# To avoid compiler warning (level 4) C4571, compile with /EHa if you still want
# your catch(...) blocks to catch structured exceptions.
list(APPEND CMAKE_CXX_FLAGS "/EHa")
endif (MSVC80 OR MSVC90 OR MSVC10 OR MSVC11)
set(MULTITHREADED_COMPILATION "/MP")
MESSAGE("Compiler flag ${MULTITHREADED_COMPILATION} allowed")
set(ACTIVATE_MULTITHREADED_COMPILATION "ON" CACHE BOOL "activate /MP flag")
if (ACTIVATE_MULTITHREADED_COMPILATION)
list(APPEND CMAKE_CXX_FLAGS ${MULTITHREADED_COMPILATION})
list(APPEND CMAKE_C_FLAGS ${MULTITHREADED_COMPILATION})
else ()
string(REPLACE ${MULTITHREADED_COMPILATION} "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
string(REPLACE ${MULTITHREADED_COMPILATION} "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
endif (ACTIVATE_MULTITHREADED_COMPILATION)
#For exceptions
list(APPEND CMAKE_CXX_FLAGS "/EHsc")
list(APPEND CMAKE_C_FLAGS "/EHsc")
# UNICODE SUPPORT
list(APPEND CMAKE_CXX_FLAGS "/D_UNICODE /DUNICODE")
list(APPEND CMAKE_C_FLAGS "/D_UNICODE /DUNICODE")
endif ()
# Remove duplicates compilation flags
FOREACH (flag_var CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO
CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
separate_arguments(${flag_var})
list(REMOVE_DUPLICATES ${flag_var})
string(REPLACE ";" " " ${flag_var} "${${flag_var}}")
set(${flag_var} "${${flag_var}}" CACHE STRING "common build flags" FORCE)
ENDFOREACH (flag_var)
if (MSVC)
# Replace /MT to /MD flag
# Replace /O2 to /O3 flag
FOREACH (flag_var CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO
CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
STRING(REGEX REPLACE "/MT" "/MD" ${flag_var} "${${flag_var}}")
STRING(REGEX REPLACE "/O2" "/Ox" ${flag_var} "${${flag_var}}")
ENDFOREACH (flag_var)
endif ()
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}" CACHE STRING "Updated flags" FORCE)
set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG}" CACHE STRING "Updated flags" FORCE)
set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE}" CACHE STRING "Updated flags" FORCE)
set(CMAKE_CXX_FLAGS_MINSIZEREL "${CMAKE_CXX_FLAGS_MINSIZEREL}" CACHE STRING "Updated flags" FORCE)
set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO}" CACHE STRING "Updated flags" FORCE)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}" CACHE STRING "Updated flags" FORCE)
set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG}" CACHE STRING "Updated flags" FORCE)
set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE}" CACHE STRING "Updated flags" FORCE)
set(CMAKE_C_FLAGS_MINSIZEREL "${CMAKE_C_FLAGS_MINSIZEREL}" CACHE STRING "Updated flags" FORCE)
set(CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_RELWITHDEBINFO}" CACHE STRING "Updated flags" FORCE)
ENDMACRO(ADD_EXTRA_COMPILATION_FLAGS)

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@ -0,0 +1,22 @@
if(NOT EXISTS "@CMAKE_BINARY_DIR@/install_manifest.txt")
message(FATAL_ERROR "Cannot find install manifest: @CMAKE_BINARY_DIR@/install_manifest.txt")
endif(NOT EXISTS "@CMAKE_BINARY_DIR@/install_manifest.txt")
file(READ "@CMAKE_BINARY_DIR@/install_manifest.txt" files)
string(REGEX REPLACE "\n" ";" files "${files}")
foreach(file ${files})
message(STATUS "Uninstalling $ENV{DESTDIR}${file}")
if(IS_SYMLINK "$ENV{DESTDIR}${file}" OR EXISTS "$ENV{DESTDIR}${file}")
exec_program(
"@CMAKE_COMMAND@" ARGS "-E remove \"$ENV{DESTDIR}${file}\""
OUTPUT_VARIABLE rm_out
RETURN_VALUE rm_retval
)
if(NOT "${rm_retval}" STREQUAL 0)
message(FATAL_ERROR "Problem when removing $ENV{DESTDIR}${file}")
endif(NOT "${rm_retval}" STREQUAL 0)
else(IS_SYMLINK "$ENV{DESTDIR}${file}" OR EXISTS "$ENV{DESTDIR}${file}")
message(STATUS "File $ENV{DESTDIR}${file} does not exist.")
endif(IS_SYMLINK "$ENV{DESTDIR}${file}" OR EXISTS "$ENV{DESTDIR}${file}")
endforeach(file)

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@ -0,0 +1,16 @@
# ################################################################
# * Copyright (c) 2015-present, Yann Collet, Facebook, Inc.
# * All rights reserved.
# *
# * This source code is licensed under the BSD-style license found in the
# * LICENSE file in the root directory of this source tree. An additional grant
# * of patent rights can be found in the PATENTS file in the same directory.
#
# You can contact the author at :
# - zstd homepage : http://www.zstd.net/
# ################################################################
PROJECT(contrib)
ADD_SUBDIRECTORY(pzstd)

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@ -0,0 +1,30 @@
# ################################################################
# * Copyright (c) 2015-present, Yann Collet, Facebook, Inc.
# * All rights reserved.
# *
# * This source code is licensed under the BSD-style license found in the
# * LICENSE file in the root directory of this source tree. An additional grant
# * of patent rights can be found in the PATENTS file in the same directory.
#
# You can contact the author at :
# - zstd homepage : http://www.zstd.net/
# ################################################################
PROJECT(pzstd)
SET(CMAKE_INCLUDE_CURRENT_DIR TRUE)
# Define project root directory
SET(ROOT_DIR ../../../..)
# Define programs directory, where sources and header files are located
SET(LIBRARY_DIR ${ROOT_DIR}/lib)
SET(PROGRAMS_DIR ${ROOT_DIR}/programs)
SET(PZSTD_DIR ${ROOT_DIR}/contrib/pzstd)
INCLUDE_DIRECTORIES(${PROGRAMS_DIR} ${LIBRARY_DIR} ${LIBRARY_DIR}/common ${PZSTD_DIR})
ADD_EXECUTABLE(pzstd ${PZSTD_DIR}/main.cpp ${PZSTD_DIR}/Options.cpp ${PZSTD_DIR}/Pzstd.cpp ${PZSTD_DIR}/SkippableFrame.cpp)
TARGET_LINK_LIBRARIES(pzstd libzstd_static pthread)
SET_TARGET_PROPERTIES(pzstd PROPERTIES COMPILE_DEFINITIONS "NDEBUG")
SET_TARGET_PROPERTIES(pzstd PROPERTIES COMPILE_OPTIONS "-Wno-shadow")

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@ -0,0 +1,192 @@
# ################################################################
# * Copyright (c) 2014-present, Yann Collet, Facebook, Inc.
# * All rights reserved.
# *
# * This source code is licensed under the BSD-style license found in the
# * LICENSE file in the root directory of this source tree. An additional grant
# * of patent rights can be found in the PATENTS file in the same directory.
#
# You can contact the author at :
# - zstd homepage : http://www.zstd.net/
# ################################################################
# Get library version based on information from input content (use regular exp)
function(GetLibraryVersion _content _outputVar1 _outputVar2 _outputVar3)
string(REGEX MATCHALL ".*define ZSTD_VERSION_MAJOR+.* ([0-9]+).*define ZSTD_VERSION_MINOR+.* ([0-9]+).*define ZSTD_VERSION_RELEASE+.* ([0-9]+)" VERSION_REGEX "${_content}")
SET(${_outputVar1} ${CMAKE_MATCH_1} PARENT_SCOPE)
SET(${_outputVar2} ${CMAKE_MATCH_2} PARENT_SCOPE)
SET(${_outputVar3} ${CMAKE_MATCH_3} PARENT_SCOPE)
endfunction()
PROJECT(libzstd)
SET(CMAKE_INCLUDE_CURRENT_DIR TRUE)
# Define project root directory
SET(ROOT_DIR ../../..)
# Define library directory, where sources and header files are located
SET(LIBRARY_DIR ${ROOT_DIR}/lib)
INCLUDE_DIRECTORIES(${LIBRARY_DIR} ${LIBRARY_DIR}/common)
# Read file content
FILE(READ ${LIBRARY_DIR}/zstd.h HEADER_CONTENT)
# Parse version
GetLibraryVersion("${HEADER_CONTENT}" LIBVER_MAJOR LIBVER_MINOR LIBVER_RELEASE)
MESSAGE("ZSTD VERSION ${LIBVER_MAJOR}.${LIBVER_MINOR}.${LIBVER_RELEASE}")
SET(Sources
${LIBRARY_DIR}/common/entropy_common.c
${LIBRARY_DIR}/common/fse_decompress.c
${LIBRARY_DIR}/common/threading.c
${LIBRARY_DIR}/common/pool.c
${LIBRARY_DIR}/common/zstd_common.c
${LIBRARY_DIR}/common/error_private.c
${LIBRARY_DIR}/common/xxhash.c
${LIBRARY_DIR}/compress/fse_compress.c
${LIBRARY_DIR}/compress/huf_compress.c
${LIBRARY_DIR}/compress/zstd_compress.c
${LIBRARY_DIR}/compress/zstdmt_compress.c
${LIBRARY_DIR}/decompress/huf_decompress.c
${LIBRARY_DIR}/decompress/zstd_decompress.c
${LIBRARY_DIR}/dictBuilder/cover.c
${LIBRARY_DIR}/dictBuilder/divsufsort.c
${LIBRARY_DIR}/dictBuilder/zdict.c
${LIBRARY_DIR}/deprecated/zbuff_common.c
${LIBRARY_DIR}/deprecated/zbuff_compress.c
${LIBRARY_DIR}/deprecated/zbuff_decompress.c)
SET(Headers
${LIBRARY_DIR}/zstd.h
${LIBRARY_DIR}/common/pool.h
${LIBRARY_DIR}/common/threading.h
${LIBRARY_DIR}/common/bitstream.h
${LIBRARY_DIR}/common/error_private.h
${LIBRARY_DIR}/common/zstd_errors.h
${LIBRARY_DIR}/common/fse.h
${LIBRARY_DIR}/common/huf.h
${LIBRARY_DIR}/common/mem.h
${LIBRARY_DIR}/common/zstd_internal.h
${LIBRARY_DIR}/compress/zstdmt_compress.h
${LIBRARY_DIR}/dictBuilder/zdict.h
${LIBRARY_DIR}/deprecated/zbuff.h)
IF (ZSTD_LEGACY_SUPPORT)
SET(LIBRARY_LEGACY_DIR ${LIBRARY_DIR}/legacy)
INCLUDE_DIRECTORIES(${LIBRARY_LEGACY_DIR})
SET(Sources ${Sources}
${LIBRARY_LEGACY_DIR}/zstd_v01.c
${LIBRARY_LEGACY_DIR}/zstd_v02.c
${LIBRARY_LEGACY_DIR}/zstd_v03.c
${LIBRARY_LEGACY_DIR}/zstd_v04.c
${LIBRARY_LEGACY_DIR}/zstd_v05.c
${LIBRARY_LEGACY_DIR}/zstd_v06.c
${LIBRARY_LEGACY_DIR}/zstd_v07.c)
SET(Headers ${Headers}
${LIBRARY_LEGACY_DIR}/zstd_legacy.h
${LIBRARY_LEGACY_DIR}/zstd_v01.h
${LIBRARY_LEGACY_DIR}/zstd_v02.h
${LIBRARY_LEGACY_DIR}/zstd_v03.h
${LIBRARY_LEGACY_DIR}/zstd_v04.h
${LIBRARY_LEGACY_DIR}/zstd_v05.h
${LIBRARY_LEGACY_DIR}/zstd_v06.h
${LIBRARY_LEGACY_DIR}/zstd_v07.h)
ENDIF (ZSTD_LEGACY_SUPPORT)
IF (MSVC)
SET(MSVC_RESOURCE_DIR ${ROOT_DIR}/build/VS2010/libzstd-dll)
SET(PlatformDependResources ${MSVC_RESOURCE_DIR}/libzstd-dll.rc)
ENDIF (MSVC)
# Split project to static and shared libraries build
ADD_LIBRARY(libzstd_static STATIC ${Sources} ${Headers})
ADD_LIBRARY(libzstd_shared SHARED ${Sources} ${Headers} ${PlatformDependResources})
# Add specific compile definitions for MSVC project
IF (MSVC)
SET_TARGET_PROPERTIES(libzstd_static PROPERTIES COMPILE_DEFINITIONS "ZSTD_HEAPMODE=0;_CRT_SECURE_NO_WARNINGS")
SET_TARGET_PROPERTIES(libzstd_shared PROPERTIES COMPILE_DEFINITIONS "ZSTD_DLL_EXPORT=1;ZSTD_HEAPMODE=0;_CONSOLE;_CRT_SECURE_NO_WARNINGS")
ENDIF (MSVC)
# Define library base name
IF (MSVC)
SET(LIBRARY_BASE_NAME zstdlib)
ELSE ()
SET(LIBRARY_BASE_NAME libzstd)
ENDIF (MSVC)
IF (MSVC)
IF (CMAKE_SIZEOF_VOID_P MATCHES "8")
SET(LIBRARY_ARCH_SUFFIX "_x64")
ELSE ()
SET(LIBRARY_ARCH_SUFFIX "_x86")
ENDIF (CMAKE_SIZEOF_VOID_P MATCHES "8")
ELSE ()
SET(LIBRARY_ARCH_SUFFIX "")
ENDIF (MSVC)
# Define static and shared library names
SET(STATIC_LIBRARY_OUTPUT_NAME ${LIBRARY_BASE_NAME}${LIBRARY_ARCH_SUFFIX} CACHE STRING "Static library output name")
SET(SHARED_LIBRARY_OUTPUT_NAME ${LIBRARY_BASE_NAME}.${LIBVER_MAJOR}.${LIBVER_MINOR}.${LIBVER_RELEASE}${LIBRARY_ARCH_SUFFIX} CACHE STRING "Shared library output name")
SET_TARGET_PROPERTIES(
libzstd_static
PROPERTIES
PREFIX ""
OUTPUT_NAME ${STATIC_LIBRARY_OUTPUT_NAME})
SET_TARGET_PROPERTIES(
libzstd_shared
PROPERTIES
PREFIX ""
OUTPUT_NAME ${SHARED_LIBRARY_OUTPUT_NAME})
IF (UNIX)
IF ("${PREFIX}" STREQUAL "")
SET(PREFIX /usr/local)
ENDIF()
MESSAGE("the variable PREFIX=${PREFIX}")
SET(INSTALL_LIBRARY_DIR ${PREFIX}/lib)
SET(INSTALL_INCLUDE_DIR ${PREFIX}/include)
# install target
INSTALL(FILES ${LIBRARY_DIR}/zstd.h ${LIBRARY_DIR}/deprecated/zbuff.h ${LIBRARY_DIR}/dictBuilder/zdict.h DESTINATION ${INSTALL_INCLUDE_DIR})
INSTALL(TARGETS libzstd_static DESTINATION ${INSTALL_LIBRARY_DIR})
INSTALL(TARGETS libzstd_shared LIBRARY DESTINATION ${INSTALL_LIBRARY_DIR})
# Create symlinks and setup this files
SET(SHARED_LIBRARY_LINK ${SHARED_LIBRARY_OUTPUT_NAME}${CMAKE_SHARED_LIBRARY_SUFFIX})
SET(SHARED_LIBRARY_SYMLINK1 ${LIBRARY_BASE_NAME}${CMAKE_SHARED_LIBRARY_SUFFIX})
SET(SHARED_LIBRARY_SYMLINK2 ${LIBRARY_BASE_NAME}${CMAKE_SHARED_LIBRARY_SUFFIX}.${LIBVER_MAJOR})
SET(SHARED_LIBRARY_LINK_PATH ${CMAKE_CURRENT_BINARY_DIR}/${SHARED_LIBRARY_LINK})
SET(SHARED_LIBRARY_SYMLINK1_PATH ${CMAKE_CURRENT_BINARY_DIR}/${SHARED_LIBRARY_SYMLINK1})
SET(SHARED_LIBRARY_SYMLINK2_PATH ${CMAKE_CURRENT_BINARY_DIR}/${SHARED_LIBRARY_SYMLINK2})
ADD_CUSTOM_COMMAND(TARGET libzstd_shared POST_BUILD
COMMAND ${CMAKE_COMMAND} -E create_symlink ${SHARED_LIBRARY_LINK} ${SHARED_LIBRARY_SYMLINK1}
DEPENDS ${SHARED_LIBRARY_LINK_PATH}
COMMENT "Generating symbolic link ${SHARED_LIBRARY_LINK} -> ${SHARED_LIBRARY_SYMLINK1}")
ADD_CUSTOM_COMMAND(TARGET libzstd_shared POST_BUILD
COMMAND ${CMAKE_COMMAND} -E create_symlink ${SHARED_LIBRARY_LINK} ${SHARED_LIBRARY_SYMLINK2}
DEPENDS ${SHARED_LIBRARY_LINK_PATH}
COMMENT "Generating symbolic link ${SHARED_LIBRARY_LINK} -> ${SHARED_LIBRARY_SYMLINK2}")
SET_DIRECTORY_PROPERTIES(PROPERTIES ADDITIONAL_MAKE_CLEAN_FILES "${SHARED_LIBRARY_SYMLINK1};${SHARED_LIBRARY_SYMLINK2}")
INSTALL(FILES ${SHARED_LIBRARY_SYMLINK1_PATH} DESTINATION ${INSTALL_LIBRARY_DIR})
INSTALL(FILES ${SHARED_LIBRARY_SYMLINK2_PATH} DESTINATION ${INSTALL_LIBRARY_DIR})
# uninstall target
CONFIGURE_FILE(
"${CMAKE_SOURCE_DIR}/cmake_uninstall.cmake.in"
"${CMAKE_BINARY_DIR}/cmake_uninstall.cmake"
IMMEDIATE @ONLY)
ADD_CUSTOM_TARGET(uninstall
COMMAND ${CMAKE_COMMAND} -P ${CMAKE_BINARY_DIR}/cmake_uninstall.cmake)
ENDIF (UNIX)

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@ -0,0 +1,3 @@
# produced by make
zstd
zstd-frugal

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@ -0,0 +1,50 @@
# ################################################################
# * Copyright (c) 2015-present, Yann Collet, Facebook, Inc.
# * All rights reserved.
# *
# * This source code is licensed under the BSD-style license found in the
# * LICENSE file in the root directory of this source tree. An additional grant
# * of patent rights can be found in the PATENTS file in the same directory.
#
# You can contact the author at :
# - zstd homepage : http://www.zstd.net/
# ################################################################
PROJECT(programs)
SET(CMAKE_INCLUDE_CURRENT_DIR TRUE)
# Define project root directory
SET(ROOT_DIR ../../..)
# Define programs directory, where sources and header files are located
SET(LIBRARY_DIR ${ROOT_DIR}/lib)
SET(PROGRAMS_DIR ${ROOT_DIR}/programs)
INCLUDE_DIRECTORIES(${PROGRAMS_DIR} ${LIBRARY_DIR} ${LIBRARY_DIR}/common ${LIBRARY_DIR}/compress ${LIBRARY_DIR}/dictBuilder)
IF (ZSTD_LEGACY_SUPPORT)
SET(PROGRAMS_LEGACY_DIR ${PROGRAMS_DIR}/legacy)
INCLUDE_DIRECTORIES(${PROGRAMS_LEGACY_DIR} ${LIBRARY_DIR}/legacy)
ENDIF (ZSTD_LEGACY_SUPPORT)
IF (MSVC)
SET(MSVC_RESOURCE_DIR ${ROOT_DIR}/build/VS2010/zstd)
SET(PlatformDependResources ${MSVC_RESOURCE_DIR}/zstd.rc)
ENDIF (MSVC)
ADD_EXECUTABLE(zstd ${PROGRAMS_DIR}/zstdcli.c ${PROGRAMS_DIR}/fileio.c ${PROGRAMS_DIR}/bench.c ${PROGRAMS_DIR}/datagen.c ${PROGRAMS_DIR}/dibio.c ${PlatformDependResources})
TARGET_LINK_LIBRARIES(zstd libzstd_static)
IF (UNIX)
ADD_EXECUTABLE(zstd-frugal ${PROGRAMS_DIR}/zstdcli.c ${PROGRAMS_DIR}/fileio.c)
TARGET_LINK_LIBRARIES(zstd-frugal libzstd_static)
SET_TARGET_PROPERTIES(zstd-frugal PROPERTIES COMPILE_DEFINITIONS "ZSTD_NOBENCH;ZSTD_NODICT")
ENDIF (UNIX)
IF (ZSTD_MULTITHREAD_SUPPORT)
ADD_EXECUTABLE(zstdmt ${PROGRAMS_DIR}/zstdcli.c ${PROGRAMS_DIR}/fileio.c ${PROGRAMS_DIR}/bench.c ${PROGRAMS_DIR}/datagen.c ${PROGRAMS_DIR}/dibio.c ${PlatformDependResources})
SET_TARGET_PROPERTIES(zstdmt PROPERTIES COMPILE_DEFINITIONS "ZSTD_MULTITHREAD")
TARGET_LINK_LIBRARIES(zstdmt libzstd_static)
IF (UNIX)
TARGET_LINK_LIBRARIES(zstdmt pthread)
ENDIF (UNIX)
ENDIF (ZSTD_MULTITHREAD_SUPPORT)

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@ -0,0 +1,7 @@
# produced by make
datagen
fullbench
fuzzer
paramgrill
zbufftest

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@ -0,0 +1,58 @@
# ################################################################
# zstd - Makefile
# Copyright (C) Yann Collet 2014-2016
# All rights reserved.
#
# BSD license
#
# Redistribution and use in source and binary forms, with or without modification,
# are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice, this
# list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright notice, this
# list of conditions and the following disclaimer in the documentation and/or
# other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
# ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# You can contact the author at :
# - zstd homepage : http://www.zstd.net/
# ################################################################
PROJECT(tests)
SET(CMAKE_INCLUDE_CURRENT_DIR TRUE)
# Define project root directory
SET(ROOT_DIR ../../..)
# Define programs directory, where sources and header files are located
SET(LIBRARY_DIR ${ROOT_DIR}/lib)
SET(PROGRAMS_DIR ${ROOT_DIR}/programs)
SET(TESTS_DIR ${ROOT_DIR}/tests)
INCLUDE_DIRECTORIES(${TESTS_DIR} ${PROGRAMS_DIR} ${LIBRARY_DIR} ${LIBRARY_DIR}/common ${LIBRARY_DIR}/compress ${LIBRARY_DIR}/dictBuilder)
ADD_EXECUTABLE(fullbench ${PROGRAMS_DIR}/datagen.c ${TESTS_DIR}/fullbench.c)
TARGET_LINK_LIBRARIES(fullbench libzstd_static)
ADD_EXECUTABLE(fuzzer ${PROGRAMS_DIR}/datagen.c ${TESTS_DIR}/fuzzer.c)
TARGET_LINK_LIBRARIES(fuzzer libzstd_static)
IF (UNIX)
ADD_EXECUTABLE(paramgrill ${PROGRAMS_DIR}/datagen.c ${TESTS_DIR}/paramgrill.c)
TARGET_LINK_LIBRARIES(paramgrill libzstd_static m) #m is math library
ADD_EXECUTABLE(datagen ${PROGRAMS_DIR}/datagen.c ${TESTS_DIR}/datagencli.c)
TARGET_LINK_LIBRARIES(datagen libzstd_static)
ENDIF (UNIX)

75
contrib/zstd/circle.yml Normal file
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dependencies:
override:
- sudo dpkg --add-architecture i386
- sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test; sudo apt-get -y -qq update
- sudo apt-get -y install gcc-powerpc-linux-gnu gcc-arm-linux-gnueabi libc6-dev-armel-cross gcc-aarch64-linux-gnu libc6-dev-arm64-cross
- sudo apt-get -y install libstdc++-6-dev clang gcc g++ gcc-5 gcc-6
- sudo apt-get -y install linux-libc-dev:i386 libc6-dev-i386
test:
override:
- ? |
if [[ "$CIRCLE_NODE_INDEX" == "0" ]] ; then cc -v; make all && make clean; fi &&
if [[ "$CIRCLE_NODE_TOTAL" < "2" ]] || [[ "$CIRCLE_NODE_INDEX" == "1" ]]; then make gnu90build && make clean; fi
:
parallel: true
- ? |
if [[ "$CIRCLE_NODE_INDEX" == "0" ]] ; then make c99build && make clean; fi &&
if [[ "$CIRCLE_NODE_TOTAL" < "2" ]] || [[ "$CIRCLE_NODE_INDEX" == "1" ]]; then make gnu99build && make clean; fi
:
parallel: true
- ? |
if [[ "$CIRCLE_NODE_INDEX" == "0" ]] ; then make c11build && make clean; fi &&
if [[ "$CIRCLE_NODE_TOTAL" < "2" ]] || [[ "$CIRCLE_NODE_INDEX" == "1" ]]; then make cmakebuild && make clean; fi
:
parallel: true
- ? |
if [[ "$CIRCLE_NODE_INDEX" == "0" ]] ; then make gppbuild && make clean; fi &&
if [[ "$CIRCLE_NODE_TOTAL" < "2" ]] || [[ "$CIRCLE_NODE_INDEX" == "1" ]]; then make gcc5build && make clean; fi
:
parallel: true
- ? |
if [[ "$CIRCLE_NODE_INDEX" == "0" ]] ; then make gcc6build && make clean; fi &&
if [[ "$CIRCLE_NODE_TOTAL" < "2" ]] || [[ "$CIRCLE_NODE_INDEX" == "1" ]]; then make clangbuild && make clean; fi
:
parallel: true
- ? |
if [[ "$CIRCLE_NODE_INDEX" == "0" ]] ; then make m32build && make clean; fi &&
if [[ "$CIRCLE_NODE_TOTAL" < "2" ]] || [[ "$CIRCLE_NODE_INDEX" == "1" ]]; then make armbuild && make clean; fi
:
parallel: true
- ? |
if [[ "$CIRCLE_NODE_INDEX" == "0" ]] ; then make aarch64build && make clean; fi &&
if [[ "$CIRCLE_NODE_TOTAL" < "2" ]] || [[ "$CIRCLE_NODE_INDEX" == "1" ]]; then make ppcbuild && make clean; fi
:
parallel: true
- ? |
if [[ "$CIRCLE_NODE_INDEX" == "0" ]] ; then make ppc64build && make clean; fi &&
if [[ "$CIRCLE_NODE_TOTAL" < "2" ]] || [[ "$CIRCLE_NODE_INDEX" == "1" ]]; then true && make clean; fi #could add another test here
:
parallel: true
- ? |
if [[ "$CIRCLE_NODE_INDEX" == "0" ]] ; then make shortest && make clean; fi &&
if [[ "$CIRCLE_NODE_TOTAL" < "2" ]] || [[ "$CIRCLE_NODE_INDEX" == "1" ]]; then make -C tests test-legacy test-longmatch test-symbols && make clean; fi
:
parallel: true
post:
- echo Circle CI tests finished
# Longer tests
#- make -C tests test-zstd-nolegacy && make clean
#- pyenv global 3.4.4; make -C tests versionsTest && make clean
#- make zlibwrapper && make clean
#- gcc -v; make -C tests test32 MOREFLAGS="-I/usr/include/x86_64-linux-gnu" && make clean
#- make uasan && make clean
#- make asan32 && make clean
#- make -C tests test32 CC=clang MOREFLAGS="-g -fsanitize=address -I/usr/include/x86_64-linux-gnu"
# Valgrind tests
#- CFLAGS="-O1 -g" make -C zlibWrapper valgrindTest && make clean
#- make -C tests valgrindTest && make clean
# ARM, AArch64, PowerPC, PowerPC64 tests
#- make ppctest && make clean
#- make ppc64test && make clean
#- make armtest && make clean
#- make aarch64test && make clean

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# make artefact
gen_html
zstd_manual.html

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# ##########################################################################
# Copyright (c) 2016-present, Facebook, Inc.
# All rights reserved.
#
# This source code is licensed under the BSD-style license found in the
# LICENSE file in the root directory of this source tree. An additional grant
# of patent rights can be found in the PATENTS file in the same directory.
# ##########################################################################
CFLAGS ?= -O3
CFLAGS += -Wall -Wextra -Wcast-qual -Wcast-align -Wshadow -Wstrict-aliasing=1 -Wswitch-enum -Wno-comment
CFLAGS += $(MOREFLAGS)
FLAGS = $(CPPFLAGS) $(CFLAGS) $(CXXFLAGS) $(LDFLAGS)
ZSTDAPI = ../../lib/zstd.h
ZSTDMANUAL = ../../doc/zstd_manual.html
LIBVER_MAJOR_SCRIPT:=`sed -n '/define ZSTD_VERSION_MAJOR/s/.*[[:blank:]]\([0-9][0-9]*\).*/\1/p' < $(ZSTDAPI)`
LIBVER_MINOR_SCRIPT:=`sed -n '/define ZSTD_VERSION_MINOR/s/.*[[:blank:]]\([0-9][0-9]*\).*/\1/p' < $(ZSTDAPI)`
LIBVER_PATCH_SCRIPT:=`sed -n '/define ZSTD_VERSION_RELEASE/s/.*[[:blank:]]\([0-9][0-9]*\).*/\1/p' < $(ZSTDAPI)`
LIBVER_SCRIPT:= $(LIBVER_MAJOR_SCRIPT).$(LIBVER_MINOR_SCRIPT).$(LIBVER_PATCH_SCRIPT)
LIBVER := $(shell echo $(LIBVER_SCRIPT))
# Define *.exe as extension for Windows systems
ifneq (,$(filter Windows%,$(OS)))
EXT =.exe
else
EXT =
endif
.PHONY: default
default: gen_html
.PHONY: all
all: manual
gen_html: gen_html.cpp
$(CXX) $(FLAGS) $^ -o $@$(EXT)
$(ZSTDMANUAL): gen_html $(ZSTDAPI)
echo "Update zstd manual in /doc"
./gen_html $(LIBVER) $(ZSTDAPI) $(ZSTDMANUAL)
.PHONY: manual
manual: gen_html $(ZSTDMANUAL)
.PHONY: clean
clean:
@$(RM) gen_html$(EXT)
@echo Cleaning completed

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gen_html - a program for automatic generation of zstd manual
============================================================
#### Introduction
This simple C++ program generates a single-page HTML manual from `zstd.h`.
The format of recognized comment blocks is following:
- comments of type `/*!` mean: this is a function declaration; switch comments with declarations
- comments of type `/**` and `/*-` mean: this is a comment; use a `<H2>` header for the first line
- comments of type `/*=` and `/**=` mean: use a `<H3>` header and show also all functions until first empty line
- comments of type `/*X` where `X` is different from above-mentioned are ignored
Moreover:
- `ZSTDLIB_API` is removed to improve readability
- `typedef` are detected and included even if uncommented
- comments of type `/**<` and `/*!<` are detected and only function declaration is highlighted (bold)
#### Usage
The program requires 3 parameters:
```
gen_html [zstd_version] [input_file] [output_html]
```
To compile program and generate zstd manual we have used:
```
make
./gen_html.exe 1.1.1 ../../lib/zstd.h zstd_manual.html
```

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#!/bin/sh
LIBVER_MAJOR_SCRIPT=`sed -n '/define ZSTD_VERSION_MAJOR/s/.*[[:blank:]]\([0-9][0-9]*\).*/\1/p' < ../../lib/zstd.h`
LIBVER_MINOR_SCRIPT=`sed -n '/define ZSTD_VERSION_MINOR/s/.*[[:blank:]]\([0-9][0-9]*\).*/\1/p' < ../../lib/zstd.h`
LIBVER_PATCH_SCRIPT=`sed -n '/define ZSTD_VERSION_RELEASE/s/.*[[:blank:]]\([0-9][0-9]*\).*/\1/p' < ../../lib/zstd.h`
LIBVER_SCRIPT=$LIBVER_MAJOR_SCRIPT.$LIBVER_MINOR_SCRIPT.$LIBVER_PATCH_SCRIPT
echo ZSTD_VERSION=$LIBVER_SCRIPT
./gen_html $LIBVER_SCRIPT ../../lib/zstd.h ./zstd_manual.html

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/*
* Copyright (c) 2016-present, Przemyslaw Skibinski, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#include <iostream>
#include <fstream>
#include <sstream>
#include <vector>
using namespace std;
/* trim string at the beginning and at the end */
void trim(string& s, string characters)
{
size_t p = s.find_first_not_of(characters);
s.erase(0, p);
p = s.find_last_not_of(characters);
if (string::npos != p)
s.erase(p+1);
}
/* trim C++ style comments */
void trim_comments(string &s)
{
size_t spos, epos;
spos = s.find("/*");
epos = s.find("*/");
s = s.substr(spos+3, epos-(spos+3));
}
/* get lines until a given terminator */
vector<string> get_lines(vector<string>& input, int& linenum, string terminator)
{
vector<string> out;
string line;
size_t epos;
while ((size_t)linenum < input.size()) {
line = input[linenum];
if (terminator.empty() && line.empty()) { linenum--; break; }
epos = line.find(terminator);
if (!terminator.empty() && epos!=string::npos) {
out.push_back(line);
break;
}
out.push_back(line);
linenum++;
}
return out;
}
/* print line with ZSTDLIB_API removed and C++ comments not bold */
void print_line(stringstream &sout, string line)
{
size_t spos;
if (line.substr(0,12) == "ZSTDLIB_API ") line = line.substr(12);
spos = line.find("/*");
if (spos!=string::npos) {
sout << line.substr(0, spos);
sout << "</b>" << line.substr(spos) << "<b>" << endl;
} else {
// fprintf(stderr, "lines=%s\n", line.c_str());
sout << line << endl;
}
}
int main(int argc, char *argv[]) {
char exclam;
int linenum, chapter = 1;
vector<string> input, lines, comments, chapters;
string line, version;
size_t spos, l;
stringstream sout;
ifstream istream;
ofstream ostream;
if (argc < 4) {
cout << "usage: " << argv[0] << " [zstd_version] [input_file] [output_html]" << endl;
return 1;
}
version = "zstd " + string(argv[1]) + " Manual";
istream.open(argv[2], ifstream::in);
if (!istream.is_open()) {
cout << "Error opening file " << argv[2] << endl;
return 1;
}
ostream.open(argv[3], ifstream::out);
if (!ostream.is_open()) {
cout << "Error opening file " << argv[3] << endl;
return 1;
}
while (getline(istream, line)) {
input.push_back(line);
}
for (linenum=0; (size_t)linenum < input.size(); linenum++) {
line = input[linenum];
/* typedefs are detected and included even if uncommented */
if (line.substr(0,7) == "typedef" && line.find("{")!=string::npos) {
lines = get_lines(input, linenum, "}");
sout << "<pre><b>";
for (l=0; l<lines.size(); l++) {
print_line(sout, lines[l]);
}
sout << "</b></pre><BR>" << endl;
continue;
}
/* comments of type /**< and /*!< are detected and only function declaration is highlighted (bold) */
if ((line.find("/**<")!=string::npos || line.find("/*!<")!=string::npos) && line.find("*/")!=string::npos) {
sout << "<pre><b>";
print_line(sout, line);
sout << "</b></pre><BR>" << endl;
continue;
}
spos = line.find("/**=");
if (spos==string::npos) {
spos = line.find("/*!");
if (spos==string::npos)
spos = line.find("/**");
if (spos==string::npos)
spos = line.find("/*-");
if (spos==string::npos)
spos = line.find("/*=");
if (spos==string::npos)
continue;
exclam = line[spos+2];
}
else exclam = '=';
comments = get_lines(input, linenum, "*/");
if (!comments.empty()) comments[0] = line.substr(spos+3);
if (!comments.empty()) comments[comments.size()-1] = comments[comments.size()-1].substr(0, comments[comments.size()-1].find("*/"));
for (l=0; l<comments.size(); l++) {
if (comments[l].find(" *")==0) comments[l] = comments[l].substr(2);
else if (comments[l].find(" *")==0) comments[l] = comments[l].substr(3);
trim(comments[l], "*-=");
}
while (!comments.empty() && comments[comments.size()-1].empty()) comments.pop_back(); // remove empty line at the end
while (!comments.empty() && comments[0].empty()) comments.erase(comments.begin()); // remove empty line at the start
/* comments of type /*! mean: this is a function declaration; switch comments with declarations */
if (exclam == '!') {
if (!comments.empty()) comments.erase(comments.begin()); /* remove first line like "ZSTD_XXX() :" */
linenum++;
lines = get_lines(input, linenum, "");
sout << "<pre><b>";
for (l=0; l<lines.size(); l++) {
// fprintf(stderr, "line[%d]=%s\n", l, lines[l].c_str());
string fline = lines[l];
if (fline.substr(0, 12) == "ZSTDLIB_API " ||
fline.substr(0, 12) == string(12, ' '))
fline = fline.substr(12);
print_line(sout, fline);
}
sout << "</b><p>";
for (l=0; l<comments.size(); l++) {
print_line(sout, comments[l]);
}
sout << "</p></pre><BR>" << endl << endl;
} else if (exclam == '=') { /* comments of type /*= and /**= mean: use a <H3> header and show also all functions until first empty line */
trim(comments[0], " ");
sout << "<h3>" << comments[0] << "</h3><pre>";
for (l=1; l<comments.size(); l++) {
print_line(sout, comments[l]);
}
sout << "</pre><b><pre>";
lines = get_lines(input, ++linenum, "");
for (l=0; l<lines.size(); l++) {
print_line(sout, lines[l]);
}
sout << "</pre></b><BR>" << endl;
} else { /* comments of type /** and /*- mean: this is a comment; use a <H2> header for the first line */
if (comments.empty()) continue;
trim(comments[0], " ");
sout << "<a name=\"Chapter" << chapter << "\"></a><h2>" << comments[0] << "</h2><pre>";
chapters.push_back(comments[0]);
chapter++;
for (l=1; l<comments.size(); l++) {
print_line(sout, comments[l]);
}
if (comments.size() > 1)
sout << "<BR></pre>" << endl << endl;
else
sout << "</pre>" << endl << endl;
}
}
ostream << "<html>\n<head>\n<meta http-equiv=\"Content-Type\" content=\"text/html; charset=ISO-8859-1\">\n<title>" << version << "</title>\n</head>\n<body>" << endl;
ostream << "<h1>" << version << "</h1>\n";
ostream << "<hr>\n<a name=\"Contents\"></a><h2>Contents</h2>\n<ol>\n";
for (size_t i=0; i<chapters.size(); i++)
ostream << "<li><a href=\"#Chapter" << i+1 << "\">" << chapters[i].c_str() << "</a></li>\n";
ostream << "</ol>\n<hr>\n";
ostream << sout.str();
ostream << "</html>" << endl << "</body>" << endl;
return 0;
}

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This Meson project is provided with no guarantee and maintained by Dima Krasner <dima@dimakrasner.com>.
It outputs one libzstd, either shared or static, depending on default_library.

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project('zstd', 'c', license: 'BSD')
libm = meson.get_compiler('c').find_library('m', required: true)
lib_dir = join_paths(meson.source_root(), '..', '..', 'lib')
common_dir = join_paths(lib_dir, 'common')
compress_dir = join_paths(lib_dir, 'compress')
decompress_dir = join_paths(lib_dir, 'decompress')
dictbuilder_dir = join_paths(lib_dir, 'dictBuilder')
deprecated_dir = join_paths(lib_dir, 'deprecated')
libzstd_srcs = [join_paths(common_dir, 'entropy_common.c'), join_paths(common_dir, 'fse_decompress.c'), join_paths(common_dir, 'threading.c'), join_paths(common_dir, 'pool.c'), join_paths(common_dir, 'zstd_common.c'), join_paths(common_dir, 'error_private.c'), join_paths(common_dir, 'xxhash.c'), join_paths(compress_dir, 'fse_compress.c'), join_paths(compress_dir, 'huf_compress.c'), join_paths(compress_dir, 'zstd_compress.c'), join_paths(compress_dir, 'zstdmt_compress.c'), join_paths(decompress_dir, 'huf_decompress.c'), join_paths(decompress_dir, 'zstd_decompress.c'), join_paths(dictbuilder_dir, 'cover.c'), join_paths(dictbuilder_dir, 'divsufsort.c'), join_paths(dictbuilder_dir, 'zdict.c'), join_paths(deprecated_dir, 'zbuff_common.c'), join_paths(deprecated_dir, 'zbuff_compress.c'), join_paths(deprecated_dir, 'zbuff_decompress.c')]
libzstd_includes = [include_directories(common_dir, dictbuilder_dir, compress_dir, lib_dir)]
if get_option('legacy_support')
message('Enabling legacy support')
libzstd_cflags = ['-DZSTD_LEGACY_SUPPORT=4']
legacy_dir = join_paths(lib_dir, 'legacy')
libzstd_includes += [include_directories(legacy_dir)]
libzstd_srcs += [join_paths(legacy_dir, 'zstd_v01.c'), join_paths(legacy_dir, 'zstd_v02.c'), join_paths(legacy_dir, 'zstd_v03.c'), join_paths(legacy_dir, 'zstd_v04.c'), join_paths(legacy_dir, 'zstd_v05.c'), join_paths(legacy_dir, 'zstd_v06.c'), join_paths(legacy_dir, 'zstd_v07.c')]
else
libzstd_cflags = []
endif
if get_option('multithread')
message('Enabling multi-threading support')
add_global_arguments('-DZSTD_MULTITHREAD', language: 'c')
libzstd_deps = [dependency('threads')]
else
libzstd_deps = []
endif
libzstd = library('zstd',
libzstd_srcs,
include_directories: libzstd_includes,
c_args: libzstd_cflags,
dependencies: libzstd_deps,
install: true)
programs_dir = join_paths(meson.source_root(), '..', '..', 'programs')
zstd = executable('zstd',
join_paths(programs_dir, 'bench.c'), join_paths(programs_dir, 'datagen.c'), join_paths(programs_dir, 'dibio.c'), join_paths(programs_dir, 'fileio.c'), join_paths(programs_dir, 'zstdcli.c'),
include_directories: libzstd_includes,
c_args: ['-DZSTD_NODICT', '-DZSTD_NOBENCH'],
link_with: libzstd,
install: true)
tests_dir = join_paths(meson.source_root(), '..', '..', 'tests')
datagen_c = join_paths(programs_dir, 'datagen.c')
test_includes = libzstd_includes + [include_directories(programs_dir)]
fullbench = executable('fullbench',
datagen_c, join_paths(tests_dir, 'fullbench.c'),
include_directories: test_includes,
link_with: libzstd)
test('fullbench', fullbench)
fuzzer = executable('fuzzer',
datagen_c, join_paths(tests_dir, 'fuzzer.c'),
include_directories: test_includes,
link_with: libzstd)
test('fuzzer', fuzzer)
if target_machine.system() != 'windows'
paramgrill = executable('paramgrill',
datagen_c, join_paths(tests_dir, 'paramgrill.c'),
include_directories: test_includes,
link_with: libzstd,
dependencies: libm)
test('paramgrill', paramgrill)
datagen = executable('datagen',
datagen_c, join_paths(tests_dir, 'datagencli.c'),
include_directories: test_includes,
link_with: libzstd)
endif

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option('multithread', type: 'boolean', value: false)
option('legacy_support', type: 'boolean', value: false)

2
contrib/zstd/contrib/pzstd/.gitignore vendored Normal file
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# compilation result
pzstd

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cxx_library(
name='libpzstd',
visibility=['PUBLIC'],
header_namespace='',
exported_headers=[
'ErrorHolder.h',
'Logging.h',
'Pzstd.h',
],
headers=[
'SkippableFrame.h',
],
srcs=[
'Pzstd.cpp',
'SkippableFrame.cpp',
],
deps=[
':options',
'//contrib/pzstd/utils:utils',
'//lib:mem',
'//lib:zstd',
],
)
cxx_library(
name='options',
visibility=['PUBLIC'],
header_namespace='',
exported_headers=['Options.h'],
srcs=['Options.cpp'],
deps=[
'//contrib/pzstd/utils:scope_guard',
'//lib:zstd',
'//programs:util',
],
)
cxx_binary(
name='pzstd',
visibility=['PUBLIC'],
srcs=['main.cpp'],
deps=[
':libpzstd',
':options',
],
)
# Must run "make googletest" first
cxx_library(
name='gtest',
srcs=glob([
'googletest/googletest/src/gtest-all.cc',
'googletest/googlemock/src/gmock-all.cc',
'googletest/googlemock/src/gmock_main.cc',
]),
header_namespace='',
exported_headers=subdir_glob([
('googletest/googletest/include', '**/*.h'),
('googletest/googlemock/include', '**/*.h'),
]),
headers=subdir_glob([
('googletest/googletest', 'src/*.cc'),
('googletest/googletest', 'src/*.h'),
('googletest/googlemock', 'src/*.cc'),
('googletest/googlemock', 'src/*.h'),
]),
platform_linker_flags=[
('android', []),
('', ['-lpthread']),
],
visibility=['PUBLIC'],
)

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/**
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#pragma once
#include <atomic>
#include <cassert>
#include <stdexcept>
#include <string>
namespace pzstd {
// Coordinates graceful shutdown of the pzstd pipeline
class ErrorHolder {
std::atomic<bool> error_;
std::string message_;
public:
ErrorHolder() : error_(false) {}
bool hasError() noexcept {
return error_.load();
}
void setError(std::string message) noexcept {
// Given multiple possibly concurrent calls, exactly one will ever succeed.
bool expected = false;
if (error_.compare_exchange_strong(expected, true)) {
message_ = std::move(message);
}
}
bool check(bool predicate, std::string message) noexcept {
if (!predicate) {
setError(std::move(message));
}
return !hasError();
}
std::string getError() noexcept {
error_.store(false);
return std::move(message_);
}
~ErrorHolder() {
assert(!hasError());
}
};
}

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/**
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#pragma once
#include <cstdio>
#include <mutex>
namespace pzstd {
constexpr int ERROR = 1;
constexpr int INFO = 2;
constexpr int DEBUG = 3;
constexpr int VERBOSE = 4;
class Logger {
std::mutex mutex_;
FILE* out_;
const int level_;
using Clock = std::chrono::system_clock;
Clock::time_point lastUpdate_;
std::chrono::milliseconds refreshRate_;
public:
explicit Logger(int level, FILE* out = stderr)
: out_(out), level_(level), lastUpdate_(Clock::now()),
refreshRate_(150) {}
bool logsAt(int level) {
return level <= level_;
}
template <typename... Args>
void operator()(int level, const char *fmt, Args... args) {
if (level > level_) {
return;
}
std::lock_guard<std::mutex> lock(mutex_);
std::fprintf(out_, fmt, args...);
}
template <typename... Args>
void update(int level, const char *fmt, Args... args) {
if (level > level_) {
return;
}
std::lock_guard<std::mutex> lock(mutex_);
auto now = Clock::now();
if (now - lastUpdate_ > refreshRate_) {
lastUpdate_ = now;
std::fprintf(out_, "\r");
std::fprintf(out_, fmt, args...);
}
}
void clear(int level) {
if (level > level_) {
return;
}
std::lock_guard<std::mutex> lock(mutex_);
std::fprintf(out_, "\r%79s\r", "");
}
};
}

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# ##########################################################################
# Copyright (c) 2016-present, Facebook, Inc.
# All rights reserved.
#
# This source code is licensed under the BSD-style license found in the
# LICENSE file in the root directory of this source tree. An additional grant
# of patent rights can be found in the PATENTS file in the same directory.
# ##########################################################################
# Standard variables for installation
DESTDIR ?=
PREFIX ?= /usr/local
BINDIR := $(DESTDIR)$(PREFIX)/bin
ZSTDDIR = ../../lib
PROGDIR = ../../programs
# External program to use to run tests, e.g. qemu or valgrind
TESTPROG ?=
# Flags to pass to the tests
TESTFLAGS ?=
# We use gcc/clang to generate the header dependencies of files
DEPFLAGS = -MMD -MP -MF $*.Td
POSTCOMPILE = mv -f $*.Td $*.d
# CFLAGS, CXXFLAGS, CPPFLAGS, and LDFLAGS are for the users to override
CFLAGS ?= -O3 -Wall -Wextra
CXXFLAGS ?= -O3 -Wall -Wextra -pedantic
CPPFLAGS ?=
LDFLAGS ?=
# Include flags
PZSTD_INC = -I$(ZSTDDIR) -I$(ZSTDDIR)/common -I$(PROGDIR) -I.
GTEST_INC = -isystem googletest/googletest/include
PZSTD_CPPFLAGS = $(PZSTD_INC)
PZSTD_CCXXFLAGS =
PZSTD_CFLAGS = $(PZSTD_CCXXFLAGS)
PZSTD_CXXFLAGS = $(PZSTD_CCXXFLAGS) -std=c++11
PZSTD_LDFLAGS =
EXTRA_FLAGS =
ALL_CFLAGS = $(EXTRA_FLAGS) $(CPPFLAGS) $(PZSTD_CPPFLAGS) $(CFLAGS) $(PZSTD_CFLAGS)
ALL_CXXFLAGS = $(EXTRA_FLAGS) $(CPPFLAGS) $(PZSTD_CPPFLAGS) $(CXXFLAGS) $(PZSTD_CXXFLAGS)
ALL_LDFLAGS = $(EXTRA_FLAGS) $(LDFLAGS) $(PZSTD_LDFLAGS)
# gtest libraries need to go before "-lpthread" because they depend on it.
GTEST_LIB = -L googletest/build/googlemock/gtest
LIBS =
# Compilation commands
LD_COMMAND = $(CXX) $^ $(ALL_LDFLAGS) $(LIBS) -lpthread -o $@
CC_COMMAND = $(CC) $(DEPFLAGS) $(ALL_CFLAGS) -c $< -o $@
CXX_COMMAND = $(CXX) $(DEPFLAGS) $(ALL_CXXFLAGS) -c $< -o $@
# Get a list of all zstd files so we rebuild the static library when we need to
ZSTDCOMMON_FILES := $(wildcard $(ZSTDDIR)/common/*.c) \
$(wildcard $(ZSTDDIR)/common/*.h)
ZSTDCOMP_FILES := $(wildcard $(ZSTDDIR)/compress/*.c) \
$(wildcard $(ZSTDDIR)/compress/*.h)
ZSTDDECOMP_FILES := $(wildcard $(ZSTDDIR)/decompress/*.c) \
$(wildcard $(ZSTDDIR)/decompress/*.h)
ZSTDPROG_FILES := $(wildcard $(PROGDIR)/*.c) \
$(wildcard $(PROGDIR)/*.h)
ZSTD_FILES := $(wildcard $(ZSTDDIR)/*.h) \
$(ZSTDDECOMP_FILES) $(ZSTDCOMMON_FILES) $(ZSTDCOMP_FILES) \
$(ZSTDPROG_FILES)
# List all the pzstd source files so we can determine their dependencies
PZSTD_SRCS := $(wildcard *.cpp)
PZSTD_TESTS := $(wildcard test/*.cpp)
UTILS_TESTS := $(wildcard utils/test/*.cpp)
ALL_SRCS := $(PZSTD_SRCS) $(PZSTD_TESTS) $(UTILS_TESTS)
# Define *.exe as extension for Windows systems
ifneq (,$(filter Windows%,$(OS)))
EXT =.exe
else
EXT =
endif
# Standard targets
.PHONY: default
default: all
.PHONY: test-pzstd
test-pzstd: TESTFLAGS=--gtest_filter=-*ExtremelyLarge*
test-pzstd: clean googletest pzstd tests check
.PHONY: test-pzstd32
test-pzstd32: clean googletest32 all32 check
.PHONY: test-pzstd-tsan
test-pzstd-tsan: LDFLAGS=-fuse-ld=gold
test-pzstd-tsan: TESTFLAGS=--gtest_filter=-*ExtremelyLarge*
test-pzstd-tsan: clean googletest tsan check
.PHONY: test-pzstd-asan
test-pzstd-asan: LDFLAGS=-fuse-ld=gold
test-pzstd-asan: TESTFLAGS=--gtest_filter=-*ExtremelyLarge*
test-pzstd-asan: clean asan check
.PHONY: check
check:
$(TESTPROG) ./utils/test/BufferTest$(EXT) $(TESTFLAGS)
$(TESTPROG) ./utils/test/RangeTest$(EXT) $(TESTFLAGS)
$(TESTPROG) ./utils/test/ResourcePoolTest$(EXT) $(TESTFLAGS)
$(TESTPROG) ./utils/test/ScopeGuardTest$(EXT) $(TESTFLAGS)
$(TESTPROG) ./utils/test/ThreadPoolTest$(EXT) $(TESTFLAGS)
$(TESTPROG) ./utils/test/WorkQueueTest$(EXT) $(TESTFLAGS)
$(TESTPROG) ./test/OptionsTest$(EXT) $(TESTFLAGS)
$(TESTPROG) ./test/PzstdTest$(EXT) $(TESTFLAGS)
.PHONY: install
install: PZSTD_CPPFLAGS += -DNDEBUG
install: pzstd$(EXT)
install -d -m 755 $(BINDIR)/
install -m 755 pzstd$(EXT) $(BINDIR)/pzstd$(EXT)
.PHONY: uninstall
uninstall:
$(RM) $(BINDIR)/pzstd$(EXT)
# Targets for many different builds
.PHONY: all
all: PZSTD_CPPFLAGS += -DNDEBUG
all: pzstd$(EXT)
.PHONY: debug
debug: EXTRA_FLAGS += -g
debug: pzstd$(EXT) tests roundtrip
.PHONY: tsan
tsan: PZSTD_CCXXFLAGS += -fsanitize=thread -fPIC
tsan: PZSTD_LDFLAGS += -fsanitize=thread
tsan: debug
.PHONY: asan
asan: EXTRA_FLAGS += -fsanitize=address
asan: debug
.PHONY: ubsan
ubsan: EXTRA_FLAGS += -fsanitize=undefined
ubsan: debug
.PHONY: all32
all32: EXTRA_FLAGS += -m32
all32: all tests roundtrip
.PHONY: debug32
debug32: EXTRA_FLAGS += -m32
debug32: debug
.PHONY: asan32
asan32: EXTRA_FLAGS += -m32
asan32: asan
.PHONY: tsan32
tsan32: EXTRA_FLAGS += -m32
tsan32: tsan
.PHONY: ubsan32
ubsan32: EXTRA_FLAGS += -m32
ubsan32: ubsan
# Run long round trip tests
.PHONY: roundtripcheck
roundtripcheck: roundtrip check
$(TESTPROG) ./test/RoundTripTest$(EXT) $(TESTFLAGS)
# Build the main binary
pzstd$(EXT): main.o Options.o Pzstd.o SkippableFrame.o $(ZSTDDIR)/libzstd.a
$(LD_COMMAND)
# Target that depends on all the tests
.PHONY: tests
tests: EXTRA_FLAGS += -Wno-deprecated-declarations
tests: $(patsubst %,%$(EXT),$(basename $(PZSTD_TESTS) $(UTILS_TESTS)))
# Build the round trip tests
.PHONY: roundtrip
roundtrip: EXTRA_FLAGS += -Wno-deprecated-declarations
roundtrip: test/RoundTripTest$(EXT)
# Use the static library that zstd builds for simplicity and
# so we get the compiler options correct
$(ZSTDDIR)/libzstd.a: $(ZSTD_FILES)
CFLAGS="$(ALL_CFLAGS)" LDFLAGS="$(ALL_LDFLAGS)" $(MAKE) -C $(ZSTDDIR) libzstd.a
# Rules to build the tests
test/RoundTripTest$(EXT): test/RoundTripTest.o $(PROGDIR)/datagen.o Options.o \
Pzstd.o SkippableFrame.o $(ZSTDDIR)/libzstd.a
$(LD_COMMAND)
test/%Test$(EXT): PZSTD_LDFLAGS += $(GTEST_LIB)
test/%Test$(EXT): LIBS += -lgtest -lgtest_main
test/%Test$(EXT): test/%Test.o $(PROGDIR)/datagen.o Options.o Pzstd.o \
SkippableFrame.o $(ZSTDDIR)/libzstd.a
$(LD_COMMAND)
utils/test/%Test$(EXT): PZSTD_LDFLAGS += $(GTEST_LIB)
utils/test/%Test$(EXT): LIBS += -lgtest -lgtest_main
utils/test/%Test$(EXT): utils/test/%Test.o
$(LD_COMMAND)
GTEST_CMAKEFLAGS =
# Install googletest
.PHONY: googletest
googletest: PZSTD_CCXXFLAGS += -fPIC
googletest:
@$(RM) -rf googletest
@git clone https://github.com/google/googletest
@mkdir -p googletest/build
@cd googletest/build && cmake $(GTEST_CMAKEFLAGS) -DCMAKE_CXX_FLAGS="$(ALL_CXXFLAGS)" .. && $(MAKE)
.PHONY: googletest32
googletest32: PZSTD_CCXXFLAGS += -m32
googletest32: googletest
.PHONY: googletest-mingw64
googletest-mingw64: GTEST_CMAKEFLAGS += -G "MSYS Makefiles"
googletest-mingw64: googletest
.PHONY: clean
clean:
$(RM) -f *.o pzstd$(EXT) *.Td *.d
$(RM) -f test/*.o test/*Test$(EXT) test/*.Td test/*.d
$(RM) -f utils/test/*.o utils/test/*Test$(EXT) utils/test/*.Td utils/test/*.d
$(RM) -f $(PROGDIR)/*.o $(PROGDIR)/*.Td $(PROGDIR)/*.d
$(MAKE) -C $(ZSTDDIR) clean
@echo Cleaning completed
# Cancel implicit rules
%.o: %.c
%.o: %.cpp
# Object file rules
%.o: %.c
$(CC_COMMAND)
$(POSTCOMPILE)
$(PROGDIR)/%.o: $(PROGDIR)/%.c
$(CC_COMMAND)
$(POSTCOMPILE)
%.o: %.cpp
$(CXX_COMMAND)
$(POSTCOMPILE)
test/%.o: PZSTD_CPPFLAGS += $(GTEST_INC)
test/%.o: test/%.cpp
$(CXX_COMMAND)
$(POSTCOMPILE)
utils/test/%.o: PZSTD_CPPFLAGS += $(GTEST_INC)
utils/test/%.o: utils/test/%.cpp
$(CXX_COMMAND)
$(POSTCOMPILE)
# Dependency file stuff
.PRECIOUS: %.d test/%.d utils/test/%.d
# Include rules that specify header file dependencies
-include $(patsubst %,%.d,$(basename $(ALL_SRCS)))

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/**
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#include "Options.h"
#include "util.h"
#include "utils/ScopeGuard.h"
#include <algorithm>
#include <cassert>
#include <cstdio>
#include <cstring>
#include <iterator>
#include <thread>
#include <vector>
#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(_WIN32) || \
defined(__CYGWIN__)
#include <io.h> /* _isatty */
#define IS_CONSOLE(stdStream) _isatty(_fileno(stdStream))
#elif defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || defined(_POSIX_SOURCE) || (defined(__APPLE__) && defined(__MACH__)) || \
defined(__DragonFly__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) /* https://sourceforge.net/p/predef/wiki/OperatingSystems/ */
#include <unistd.h> /* isatty */
#define IS_CONSOLE(stdStream) isatty(fileno(stdStream))
#else
#define IS_CONSOLE(stdStream) 0
#endif
namespace pzstd {
namespace {
unsigned defaultNumThreads() {
#ifdef PZSTD_NUM_THREADS
return PZSTD_NUM_THREADS;
#else
return std::thread::hardware_concurrency();
#endif
}
unsigned parseUnsigned(const char **arg) {
unsigned result = 0;
while (**arg >= '0' && **arg <= '9') {
result *= 10;
result += **arg - '0';
++(*arg);
}
return result;
}
const char *getArgument(const char *options, const char **argv, int &i,
int argc) {
if (options[1] != 0) {
return options + 1;
}
++i;
if (i == argc) {
std::fprintf(stderr, "Option -%c requires an argument, but none provided\n",
*options);
return nullptr;
}
return argv[i];
}
const std::string kZstdExtension = ".zst";
constexpr char kStdIn[] = "-";
constexpr char kStdOut[] = "-";
constexpr unsigned kDefaultCompressionLevel = 3;
constexpr unsigned kMaxNonUltraCompressionLevel = 19;
#ifdef _WIN32
const char nullOutput[] = "nul";
#else
const char nullOutput[] = "/dev/null";
#endif
void notSupported(const char *option) {
std::fprintf(stderr, "Operation not supported: %s\n", option);
}
void usage() {
std::fprintf(stderr, "Usage:\n");
std::fprintf(stderr, " pzstd [args] [FILE(s)]\n");
std::fprintf(stderr, "Parallel ZSTD options:\n");
std::fprintf(stderr, " -p, --processes # : number of threads to use for (de)compression (default:%d)\n", defaultNumThreads());
std::fprintf(stderr, "ZSTD options:\n");
std::fprintf(stderr, " -# : # compression level (1-%d, default:%d)\n", kMaxNonUltraCompressionLevel, kDefaultCompressionLevel);
std::fprintf(stderr, " -d, --decompress : decompression\n");
std::fprintf(stderr, " -o file : result stored into `file` (only if 1 input file)\n");
std::fprintf(stderr, " -f, --force : overwrite output without prompting\n");
std::fprintf(stderr, " --rm : remove source file(s) after successful (de)compression\n");
std::fprintf(stderr, " -k, --keep : preserve source file(s) (default)\n");
std::fprintf(stderr, " -h, --help : display help and exit\n");
std::fprintf(stderr, " -V, --version : display version number and exit\n");
std::fprintf(stderr, " -v, --verbose : verbose mode; specify multiple times to increase log level (default:2)\n");
std::fprintf(stderr, " -q, --quiet : suppress warnings; specify twice to suppress errors too\n");
std::fprintf(stderr, " -c, --stdout : force write to standard output, even if it is the console\n");
#ifdef UTIL_HAS_CREATEFILELIST
std::fprintf(stderr, " -r : operate recursively on directories\n");
#endif
std::fprintf(stderr, " --ultra : enable levels beyond %i, up to %i (requires more memory)\n", kMaxNonUltraCompressionLevel, ZSTD_maxCLevel());
std::fprintf(stderr, " -C, --check : integrity check (default)\n");
std::fprintf(stderr, " --no-check : no integrity check\n");
std::fprintf(stderr, " -t, --test : test compressed file integrity\n");
std::fprintf(stderr, " -- : all arguments after \"--\" are treated as files\n");
}
} // anonymous namespace
Options::Options()
: numThreads(defaultNumThreads()), maxWindowLog(23),
compressionLevel(kDefaultCompressionLevel), decompress(false),
overwrite(false), keepSource(true), writeMode(WriteMode::Auto),
checksum(true), verbosity(2) {}
Options::Status Options::parse(int argc, const char **argv) {
bool test = false;
bool recursive = false;
bool ultra = false;
bool forceStdout = false;
// Local copy of input files, which are pointers into argv.
std::vector<const char *> localInputFiles;
for (int i = 1; i < argc; ++i) {
const char *arg = argv[i];
// Protect against empty arguments
if (arg[0] == 0) {
continue;
}
// Everything after "--" is an input file
if (!std::strcmp(arg, "--")) {
++i;
std::copy(argv + i, argv + argc, std::back_inserter(localInputFiles));
break;
}
// Long arguments that don't have a short option
{
bool isLongOption = true;
if (!std::strcmp(arg, "--rm")) {
keepSource = false;
} else if (!std::strcmp(arg, "--ultra")) {
ultra = true;
maxWindowLog = 0;
} else if (!std::strcmp(arg, "--no-check")) {
checksum = false;
} else if (!std::strcmp(arg, "--sparse")) {
writeMode = WriteMode::Sparse;
notSupported("Sparse mode");
return Status::Failure;
} else if (!std::strcmp(arg, "--no-sparse")) {
writeMode = WriteMode::Regular;
notSupported("Sparse mode");
return Status::Failure;
} else if (!std::strcmp(arg, "--dictID")) {
notSupported(arg);
return Status::Failure;
} else if (!std::strcmp(arg, "--no-dictID")) {
notSupported(arg);
return Status::Failure;
} else {
isLongOption = false;
}
if (isLongOption) {
continue;
}
}
// Arguments with a short option simply set their short option.
const char *options = nullptr;
if (!std::strcmp(arg, "--processes")) {
options = "p";
} else if (!std::strcmp(arg, "--version")) {
options = "V";
} else if (!std::strcmp(arg, "--help")) {
options = "h";
} else if (!std::strcmp(arg, "--decompress")) {
options = "d";
} else if (!std::strcmp(arg, "--force")) {
options = "f";
} else if (!std::strcmp(arg, "--stdout")) {
options = "c";
} else if (!std::strcmp(arg, "--keep")) {
options = "k";
} else if (!std::strcmp(arg, "--verbose")) {
options = "v";
} else if (!std::strcmp(arg, "--quiet")) {
options = "q";
} else if (!std::strcmp(arg, "--check")) {
options = "C";
} else if (!std::strcmp(arg, "--test")) {
options = "t";
} else if (arg[0] == '-' && arg[1] != 0) {
options = arg + 1;
} else {
localInputFiles.emplace_back(arg);
continue;
}
assert(options != nullptr);
bool finished = false;
while (!finished && *options != 0) {
// Parse the compression level
if (*options >= '0' && *options <= '9') {
compressionLevel = parseUnsigned(&options);
continue;
}
switch (*options) {
case 'h':
case 'H':
usage();
return Status::Message;
case 'V':
std::fprintf(stderr, "PZSTD version: %s.\n", ZSTD_VERSION_STRING);
return Status::Message;
case 'p': {
finished = true;
const char *optionArgument = getArgument(options, argv, i, argc);
if (optionArgument == nullptr) {
return Status::Failure;
}
if (*optionArgument < '0' || *optionArgument > '9') {
std::fprintf(stderr, "Option -p expects a number, but %s provided\n",
optionArgument);
return Status::Failure;
}
numThreads = parseUnsigned(&optionArgument);
if (*optionArgument != 0) {
std::fprintf(stderr,
"Option -p expects a number, but %u%s provided\n",
numThreads, optionArgument);
return Status::Failure;
}
break;
}
case 'o': {
finished = true;
const char *optionArgument = getArgument(options, argv, i, argc);
if (optionArgument == nullptr) {
return Status::Failure;
}
outputFile = optionArgument;
break;
}
case 'C':
checksum = true;
break;
case 'k':
keepSource = true;
break;
case 'd':
decompress = true;
break;
case 'f':
overwrite = true;
forceStdout = true;
break;
case 't':
test = true;
decompress = true;
break;
#ifdef UTIL_HAS_CREATEFILELIST
case 'r':
recursive = true;
break;
#endif
case 'c':
outputFile = kStdOut;
forceStdout = true;
break;
case 'v':
++verbosity;
break;
case 'q':
--verbosity;
// Ignore them for now
break;
// Unsupported options from Zstd
case 'D':
case 's':
notSupported("Zstd dictionaries.");
return Status::Failure;
case 'b':
case 'e':
case 'i':
case 'B':
notSupported("Zstd benchmarking options.");
return Status::Failure;
default:
std::fprintf(stderr, "Invalid argument: %s\n", arg);
return Status::Failure;
}
if (!finished) {
++options;
}
} // while (*options != 0);
} // for (int i = 1; i < argc; ++i);
// Set options for test mode
if (test) {
outputFile = nullOutput;
keepSource = true;
}
// Input file defaults to standard input if not provided.
if (localInputFiles.empty()) {
localInputFiles.emplace_back(kStdIn);
}
// Check validity of input files
if (localInputFiles.size() > 1) {
const auto it = std::find(localInputFiles.begin(), localInputFiles.end(),
std::string{kStdIn});
if (it != localInputFiles.end()) {
std::fprintf(
stderr,
"Cannot specify standard input when handling multiple files\n");
return Status::Failure;
}
}
if (localInputFiles.size() > 1 || recursive) {
if (!outputFile.empty() && outputFile != nullOutput) {
std::fprintf(
stderr,
"Cannot specify an output file when handling multiple inputs\n");
return Status::Failure;
}
}
// Translate input files/directories into files to (de)compress
if (recursive) {
char *scratchBuffer = nullptr;
unsigned numFiles = 0;
const char **files =
UTIL_createFileList(localInputFiles.data(), localInputFiles.size(),
&scratchBuffer, &numFiles);
if (files == nullptr) {
std::fprintf(stderr, "Error traversing directories\n");
return Status::Failure;
}
auto guard =
makeScopeGuard([&] { UTIL_freeFileList(files, scratchBuffer); });
if (numFiles == 0) {
std::fprintf(stderr, "No files found\n");
return Status::Failure;
}
inputFiles.resize(numFiles);
std::copy(files, files + numFiles, inputFiles.begin());
} else {
inputFiles.resize(localInputFiles.size());
std::copy(localInputFiles.begin(), localInputFiles.end(),
inputFiles.begin());
}
localInputFiles.clear();
assert(!inputFiles.empty());
// If reading from standard input, default to standard output
if (inputFiles[0] == kStdIn && outputFile.empty()) {
assert(inputFiles.size() == 1);
outputFile = "-";
}
if (inputFiles[0] == kStdIn && IS_CONSOLE(stdin)) {
assert(inputFiles.size() == 1);
std::fprintf(stderr, "Cannot read input from interactive console\n");
return Status::Failure;
}
if (outputFile == "-" && IS_CONSOLE(stdout) && !(forceStdout && decompress)) {
std::fprintf(stderr, "Will not write to console stdout unless -c or -f is "
"specified and decompressing\n");
return Status::Failure;
}
// Check compression level
{
unsigned maxCLevel =
ultra ? ZSTD_maxCLevel() : kMaxNonUltraCompressionLevel;
if (compressionLevel > maxCLevel || compressionLevel == 0) {
std::fprintf(stderr, "Invalid compression level %u.\n", compressionLevel);
return Status::Failure;
}
}
// Check that numThreads is set
if (numThreads == 0) {
std::fprintf(stderr, "Invalid arguments: # of threads not specified "
"and unable to determine hardware concurrency.\n");
return Status::Failure;
}
// Modify verbosity
// If we are piping input and output, turn off interaction
if (inputFiles[0] == kStdIn && outputFile == kStdOut && verbosity == 2) {
verbosity = 1;
}
// If we are in multi-file mode, turn off interaction
if (inputFiles.size() > 1 && verbosity == 2) {
verbosity = 1;
}
return Status::Success;
}
std::string Options::getOutputFile(const std::string &inputFile) const {
if (!outputFile.empty()) {
return outputFile;
}
// Attempt to add/remove zstd extension from the input file
if (decompress) {
int stemSize = inputFile.size() - kZstdExtension.size();
if (stemSize > 0 && inputFile.substr(stemSize) == kZstdExtension) {
return inputFile.substr(0, stemSize);
} else {
return "";
}
} else {
return inputFile + kZstdExtension;
}
}
}

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/**
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#pragma once
#define ZSTD_STATIC_LINKING_ONLY
#include "zstd.h"
#undef ZSTD_STATIC_LINKING_ONLY
#include <cstdint>
#include <string>
#include <vector>
namespace pzstd {
struct Options {
enum class WriteMode { Regular, Auto, Sparse };
unsigned numThreads;
unsigned maxWindowLog;
unsigned compressionLevel;
bool decompress;
std::vector<std::string> inputFiles;
std::string outputFile;
bool overwrite;
bool keepSource;
WriteMode writeMode;
bool checksum;
int verbosity;
enum class Status {
Success, // Successfully parsed options
Failure, // Failure to parse options
Message // Options specified to print a message (e.g. "-h")
};
Options();
Options(unsigned numThreads, unsigned maxWindowLog, unsigned compressionLevel,
bool decompress, std::vector<std::string> inputFiles,
std::string outputFile, bool overwrite, bool keepSource,
WriteMode writeMode, bool checksum, int verbosity)
: numThreads(numThreads), maxWindowLog(maxWindowLog),
compressionLevel(compressionLevel), decompress(decompress),
inputFiles(std::move(inputFiles)), outputFile(std::move(outputFile)),
overwrite(overwrite), keepSource(keepSource), writeMode(writeMode),
checksum(checksum), verbosity(verbosity) {}
Status parse(int argc, const char **argv);
ZSTD_parameters determineParameters() const {
ZSTD_parameters params = ZSTD_getParams(compressionLevel, 0, 0);
params.fParams.contentSizeFlag = 0;
params.fParams.checksumFlag = checksum;
if (maxWindowLog != 0 && params.cParams.windowLog > maxWindowLog) {
params.cParams.windowLog = maxWindowLog;
params.cParams = ZSTD_adjustCParams(params.cParams, 0, 0);
}
return params;
}
std::string getOutputFile(const std::string &inputFile) const;
};
}

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/**
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#include "Pzstd.h"
#include "SkippableFrame.h"
#include "utils/FileSystem.h"
#include "utils/Range.h"
#include "utils/ScopeGuard.h"
#include "utils/ThreadPool.h"
#include "utils/WorkQueue.h"
#include <chrono>
#include <cinttypes>
#include <cstddef>
#include <cstdio>
#include <memory>
#include <string>
#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(_WIN32) || defined(__CYGWIN__)
# include <fcntl.h> /* _O_BINARY */
# include <io.h> /* _setmode, _isatty */
# define SET_BINARY_MODE(file) { if (_setmode(_fileno(file), _O_BINARY) == -1) perror("Cannot set _O_BINARY"); }
#else
# include <unistd.h> /* isatty */
# define SET_BINARY_MODE(file)
#endif
namespace pzstd {
namespace {
#ifdef _WIN32
const std::string nullOutput = "nul";
#else
const std::string nullOutput = "/dev/null";
#endif
}
using std::size_t;
static std::uintmax_t fileSizeOrZero(const std::string &file) {
if (file == "-") {
return 0;
}
std::error_code ec;
auto size = file_size(file, ec);
if (ec) {
size = 0;
}
return size;
}
static std::uint64_t handleOneInput(const Options &options,
const std::string &inputFile,
FILE* inputFd,
const std::string &outputFile,
FILE* outputFd,
SharedState& state) {
auto inputSize = fileSizeOrZero(inputFile);
// WorkQueue outlives ThreadPool so in the case of error we are certain
// we don't accidently try to call push() on it after it is destroyed
WorkQueue<std::shared_ptr<BufferWorkQueue>> outs{options.numThreads + 1};
std::uint64_t bytesRead;
std::uint64_t bytesWritten;
{
// Initialize the (de)compression thread pool with numThreads
ThreadPool executor(options.numThreads);
// Run the reader thread on an extra thread
ThreadPool readExecutor(1);
if (!options.decompress) {
// Add a job that reads the input and starts all the compression jobs
readExecutor.add(
[&state, &outs, &executor, inputFd, inputSize, &options, &bytesRead] {
bytesRead = asyncCompressChunks(
state,
outs,
executor,
inputFd,
inputSize,
options.numThreads,
options.determineParameters());
});
// Start writing
bytesWritten = writeFile(state, outs, outputFd, options.decompress);
} else {
// Add a job that reads the input and starts all the decompression jobs
readExecutor.add([&state, &outs, &executor, inputFd, &bytesRead] {
bytesRead = asyncDecompressFrames(state, outs, executor, inputFd);
});
// Start writing
bytesWritten = writeFile(state, outs, outputFd, options.decompress);
}
}
if (!state.errorHolder.hasError()) {
std::string inputFileName = inputFile == "-" ? "stdin" : inputFile;
std::string outputFileName = outputFile == "-" ? "stdout" : outputFile;
if (!options.decompress) {
double ratio = static_cast<double>(bytesWritten) /
static_cast<double>(bytesRead + !bytesRead);
state.log(INFO, "%-20s :%6.2f%% (%6" PRIu64 " => %6" PRIu64
" bytes, %s)\n",
inputFileName.c_str(), ratio * 100, bytesRead, bytesWritten,
outputFileName.c_str());
} else {
state.log(INFO, "%-20s: %" PRIu64 " bytes \n",
inputFileName.c_str(),bytesWritten);
}
}
return bytesWritten;
}
static FILE *openInputFile(const std::string &inputFile,
ErrorHolder &errorHolder) {
if (inputFile == "-") {
SET_BINARY_MODE(stdin);
return stdin;
}
// Check if input file is a directory
{
std::error_code ec;
if (is_directory(inputFile, ec)) {
errorHolder.setError("Output file is a directory -- ignored");
return nullptr;
}
}
auto inputFd = std::fopen(inputFile.c_str(), "rb");
if (!errorHolder.check(inputFd != nullptr, "Failed to open input file")) {
return nullptr;
}
return inputFd;
}
static FILE *openOutputFile(const Options &options,
const std::string &outputFile,
SharedState& state) {
if (outputFile == "-") {
SET_BINARY_MODE(stdout);
return stdout;
}
// Check if the output file exists and then open it
if (!options.overwrite && outputFile != nullOutput) {
auto outputFd = std::fopen(outputFile.c_str(), "rb");
if (outputFd != nullptr) {
std::fclose(outputFd);
if (!state.log.logsAt(INFO)) {
state.errorHolder.setError("Output file exists");
return nullptr;
}
state.log(
INFO,
"pzstd: %s already exists; do you wish to overwrite (y/n) ? ",
outputFile.c_str());
int c = getchar();
if (c != 'y' && c != 'Y') {
state.errorHolder.setError("Not overwritten");
return nullptr;
}
}
}
auto outputFd = std::fopen(outputFile.c_str(), "wb");
if (!state.errorHolder.check(
outputFd != nullptr, "Failed to open output file")) {
return nullptr;
}
return outputFd;
}
int pzstdMain(const Options &options) {
int returnCode = 0;
SharedState state(options);
for (const auto& input : options.inputFiles) {
// Setup the shared state
auto printErrorGuard = makeScopeGuard([&] {
if (state.errorHolder.hasError()) {
returnCode = 1;
state.log(ERROR, "pzstd: %s: %s.\n", input.c_str(),
state.errorHolder.getError().c_str());
}
});
// Open the input file
auto inputFd = openInputFile(input, state.errorHolder);
if (inputFd == nullptr) {
continue;
}
auto closeInputGuard = makeScopeGuard([&] { std::fclose(inputFd); });
// Open the output file
auto outputFile = options.getOutputFile(input);
if (!state.errorHolder.check(outputFile != "",
"Input file does not have extension .zst")) {
continue;
}
auto outputFd = openOutputFile(options, outputFile, state);
if (outputFd == nullptr) {
continue;
}
auto closeOutputGuard = makeScopeGuard([&] { std::fclose(outputFd); });
// (de)compress the file
handleOneInput(options, input, inputFd, outputFile, outputFd, state);
if (state.errorHolder.hasError()) {
continue;
}
// Delete the input file if necessary
if (!options.keepSource) {
// Be sure that we are done and have written everything before we delete
if (!state.errorHolder.check(std::fclose(inputFd) == 0,
"Failed to close input file")) {
continue;
}
closeInputGuard.dismiss();
if (!state.errorHolder.check(std::fclose(outputFd) == 0,
"Failed to close output file")) {
continue;
}
closeOutputGuard.dismiss();
if (std::remove(input.c_str()) != 0) {
state.errorHolder.setError("Failed to remove input file");
continue;
}
}
}
// Returns 1 if any of the files failed to (de)compress.
return returnCode;
}
/// Construct a `ZSTD_inBuffer` that points to the data in `buffer`.
static ZSTD_inBuffer makeZstdInBuffer(const Buffer& buffer) {
return ZSTD_inBuffer{buffer.data(), buffer.size(), 0};
}
/**
* Advance `buffer` and `inBuffer` by the amount of data read, as indicated by
* `inBuffer.pos`.
*/
void advance(Buffer& buffer, ZSTD_inBuffer& inBuffer) {
auto pos = inBuffer.pos;
inBuffer.src = static_cast<const unsigned char*>(inBuffer.src) + pos;
inBuffer.size -= pos;
inBuffer.pos = 0;
return buffer.advance(pos);
}
/// Construct a `ZSTD_outBuffer` that points to the data in `buffer`.
static ZSTD_outBuffer makeZstdOutBuffer(Buffer& buffer) {
return ZSTD_outBuffer{buffer.data(), buffer.size(), 0};
}
/**
* Split `buffer` and advance `outBuffer` by the amount of data written, as
* indicated by `outBuffer.pos`.
*/
Buffer split(Buffer& buffer, ZSTD_outBuffer& outBuffer) {
auto pos = outBuffer.pos;
outBuffer.dst = static_cast<unsigned char*>(outBuffer.dst) + pos;
outBuffer.size -= pos;
outBuffer.pos = 0;
return buffer.splitAt(pos);
}
/**
* Stream chunks of input from `in`, compress it, and stream it out to `out`.
*
* @param state The shared state
* @param in Queue that we `pop()` input buffers from
* @param out Queue that we `push()` compressed output buffers to
* @param maxInputSize An upper bound on the size of the input
*/
static void compress(
SharedState& state,
std::shared_ptr<BufferWorkQueue> in,
std::shared_ptr<BufferWorkQueue> out,
size_t maxInputSize) {
auto& errorHolder = state.errorHolder;
auto guard = makeScopeGuard([&] { out->finish(); });
// Initialize the CCtx
auto ctx = state.cStreamPool->get();
if (!errorHolder.check(ctx != nullptr, "Failed to allocate ZSTD_CStream")) {
return;
}
{
auto err = ZSTD_resetCStream(ctx.get(), 0);
if (!errorHolder.check(!ZSTD_isError(err), ZSTD_getErrorName(err))) {
return;
}
}
// Allocate space for the result
auto outBuffer = Buffer(ZSTD_compressBound(maxInputSize));
auto zstdOutBuffer = makeZstdOutBuffer(outBuffer);
{
Buffer inBuffer;
// Read a buffer in from the input queue
while (in->pop(inBuffer) && !errorHolder.hasError()) {
auto zstdInBuffer = makeZstdInBuffer(inBuffer);
// Compress the whole buffer and send it to the output queue
while (!inBuffer.empty() && !errorHolder.hasError()) {
if (!errorHolder.check(
!outBuffer.empty(), "ZSTD_compressBound() was too small")) {
return;
}
// Compress
auto err =
ZSTD_compressStream(ctx.get(), &zstdOutBuffer, &zstdInBuffer);
if (!errorHolder.check(!ZSTD_isError(err), ZSTD_getErrorName(err))) {
return;
}
// Split the compressed data off outBuffer and pass to the output queue
out->push(split(outBuffer, zstdOutBuffer));
// Forget about the data we already compressed
advance(inBuffer, zstdInBuffer);
}
}
}
// Write the epilog
size_t bytesLeft;
do {
if (!errorHolder.check(
!outBuffer.empty(), "ZSTD_compressBound() was too small")) {
return;
}
bytesLeft = ZSTD_endStream(ctx.get(), &zstdOutBuffer);
if (!errorHolder.check(
!ZSTD_isError(bytesLeft), ZSTD_getErrorName(bytesLeft))) {
return;
}
out->push(split(outBuffer, zstdOutBuffer));
} while (bytesLeft != 0 && !errorHolder.hasError());
}
/**
* Calculates how large each independently compressed frame should be.
*
* @param size The size of the source if known, 0 otherwise
* @param numThreads The number of threads available to run compression jobs on
* @param params The zstd parameters to be used for compression
*/
static size_t calculateStep(
std::uintmax_t size,
size_t numThreads,
const ZSTD_parameters &params) {
(void)size;
(void)numThreads;
return size_t{1} << (params.cParams.windowLog + 2);
}
namespace {
enum class FileStatus { Continue, Done, Error };
/// Determines the status of the file descriptor `fd`.
FileStatus fileStatus(FILE* fd) {
if (std::feof(fd)) {
return FileStatus::Done;
} else if (std::ferror(fd)) {
return FileStatus::Error;
}
return FileStatus::Continue;
}
} // anonymous namespace
/**
* Reads `size` data in chunks of `chunkSize` and puts it into `queue`.
* Will read less if an error or EOF occurs.
* Returns the status of the file after all of the reads have occurred.
*/
static FileStatus
readData(BufferWorkQueue& queue, size_t chunkSize, size_t size, FILE* fd,
std::uint64_t *totalBytesRead) {
Buffer buffer(size);
while (!buffer.empty()) {
auto bytesRead =
std::fread(buffer.data(), 1, std::min(chunkSize, buffer.size()), fd);
*totalBytesRead += bytesRead;
queue.push(buffer.splitAt(bytesRead));
auto status = fileStatus(fd);
if (status != FileStatus::Continue) {
return status;
}
}
return FileStatus::Continue;
}
std::uint64_t asyncCompressChunks(
SharedState& state,
WorkQueue<std::shared_ptr<BufferWorkQueue>>& chunks,
ThreadPool& executor,
FILE* fd,
std::uintmax_t size,
size_t numThreads,
ZSTD_parameters params) {
auto chunksGuard = makeScopeGuard([&] { chunks.finish(); });
std::uint64_t bytesRead = 0;
// Break the input up into chunks of size `step` and compress each chunk
// independently.
size_t step = calculateStep(size, numThreads, params);
state.log(DEBUG, "Chosen frame size: %zu\n", step);
auto status = FileStatus::Continue;
while (status == FileStatus::Continue && !state.errorHolder.hasError()) {
// Make a new input queue that we will put the chunk's input data into.
auto in = std::make_shared<BufferWorkQueue>();
auto inGuard = makeScopeGuard([&] { in->finish(); });
// Make a new output queue that compress will put the compressed data into.
auto out = std::make_shared<BufferWorkQueue>();
// Start compression in the thread pool
executor.add([&state, in, out, step] {
return compress(
state, std::move(in), std::move(out), step);
});
// Pass the output queue to the writer thread.
chunks.push(std::move(out));
state.log(VERBOSE, "%s\n", "Starting a new frame");
// Fill the input queue for the compression job we just started
status = readData(*in, ZSTD_CStreamInSize(), step, fd, &bytesRead);
}
state.errorHolder.check(status != FileStatus::Error, "Error reading input");
return bytesRead;
}
/**
* Decompress a frame, whose data is streamed into `in`, and stream the output
* to `out`.
*
* @param state The shared state
* @param in Queue that we `pop()` input buffers from. It contains
* exactly one compressed frame.
* @param out Queue that we `push()` decompressed output buffers to
*/
static void decompress(
SharedState& state,
std::shared_ptr<BufferWorkQueue> in,
std::shared_ptr<BufferWorkQueue> out) {
auto& errorHolder = state.errorHolder;
auto guard = makeScopeGuard([&] { out->finish(); });
// Initialize the DCtx
auto ctx = state.dStreamPool->get();
if (!errorHolder.check(ctx != nullptr, "Failed to allocate ZSTD_DStream")) {
return;
}
{
auto err = ZSTD_resetDStream(ctx.get());
if (!errorHolder.check(!ZSTD_isError(err), ZSTD_getErrorName(err))) {
return;
}
}
const size_t outSize = ZSTD_DStreamOutSize();
Buffer inBuffer;
size_t returnCode = 0;
// Read a buffer in from the input queue
while (in->pop(inBuffer) && !errorHolder.hasError()) {
auto zstdInBuffer = makeZstdInBuffer(inBuffer);
// Decompress the whole buffer and send it to the output queue
while (!inBuffer.empty() && !errorHolder.hasError()) {
// Allocate a buffer with at least outSize bytes.
Buffer outBuffer(outSize);
auto zstdOutBuffer = makeZstdOutBuffer(outBuffer);
// Decompress
returnCode =
ZSTD_decompressStream(ctx.get(), &zstdOutBuffer, &zstdInBuffer);
if (!errorHolder.check(
!ZSTD_isError(returnCode), ZSTD_getErrorName(returnCode))) {
return;
}
// Pass the buffer with the decompressed data to the output queue
out->push(split(outBuffer, zstdOutBuffer));
// Advance past the input we already read
advance(inBuffer, zstdInBuffer);
if (returnCode == 0) {
// The frame is over, prepare to (maybe) start a new frame
ZSTD_initDStream(ctx.get());
}
}
}
if (!errorHolder.check(returnCode <= 1, "Incomplete block")) {
return;
}
// We've given ZSTD_decompressStream all of our data, but there may still
// be data to read.
while (returnCode == 1) {
// Allocate a buffer with at least outSize bytes.
Buffer outBuffer(outSize);
auto zstdOutBuffer = makeZstdOutBuffer(outBuffer);
// Pass in no input.
ZSTD_inBuffer zstdInBuffer{nullptr, 0, 0};
// Decompress
returnCode =
ZSTD_decompressStream(ctx.get(), &zstdOutBuffer, &zstdInBuffer);
if (!errorHolder.check(
!ZSTD_isError(returnCode), ZSTD_getErrorName(returnCode))) {
return;
}
// Pass the buffer with the decompressed data to the output queue
out->push(split(outBuffer, zstdOutBuffer));
}
}
std::uint64_t asyncDecompressFrames(
SharedState& state,
WorkQueue<std::shared_ptr<BufferWorkQueue>>& frames,
ThreadPool& executor,
FILE* fd) {
auto framesGuard = makeScopeGuard([&] { frames.finish(); });
std::uint64_t totalBytesRead = 0;
// Split the source up into its component frames.
// If we find our recognized skippable frame we know the next frames size
// which means that we can decompress each standard frame in independently.
// Otherwise, we will decompress using only one decompression task.
const size_t chunkSize = ZSTD_DStreamInSize();
auto status = FileStatus::Continue;
while (status == FileStatus::Continue && !state.errorHolder.hasError()) {
// Make a new input queue that we will put the frames's bytes into.
auto in = std::make_shared<BufferWorkQueue>();
auto inGuard = makeScopeGuard([&] { in->finish(); });
// Make a output queue that decompress will put the decompressed data into
auto out = std::make_shared<BufferWorkQueue>();
size_t frameSize;
{
// Calculate the size of the next frame.
// frameSize is 0 if the frame info can't be decoded.
Buffer buffer(SkippableFrame::kSize);
auto bytesRead = std::fread(buffer.data(), 1, buffer.size(), fd);
totalBytesRead += bytesRead;
status = fileStatus(fd);
if (bytesRead == 0 && status != FileStatus::Continue) {
break;
}
buffer.subtract(buffer.size() - bytesRead);
frameSize = SkippableFrame::tryRead(buffer.range());
in->push(std::move(buffer));
}
if (frameSize == 0) {
// We hit a non SkippableFrame, so this will be the last job.
// Make sure that we don't use too much memory
in->setMaxSize(64);
out->setMaxSize(64);
}
// Start decompression in the thread pool
executor.add([&state, in, out] {
return decompress(state, std::move(in), std::move(out));
});
// Pass the output queue to the writer thread
frames.push(std::move(out));
if (frameSize == 0) {
// We hit a non SkippableFrame ==> not compressed by pzstd or corrupted
// Pass the rest of the source to this decompression task
state.log(VERBOSE, "%s\n",
"Input not in pzstd format, falling back to serial decompression");
while (status == FileStatus::Continue && !state.errorHolder.hasError()) {
status = readData(*in, chunkSize, chunkSize, fd, &totalBytesRead);
}
break;
}
state.log(VERBOSE, "Decompressing a frame of size %zu", frameSize);
// Fill the input queue for the decompression job we just started
status = readData(*in, chunkSize, frameSize, fd, &totalBytesRead);
}
state.errorHolder.check(status != FileStatus::Error, "Error reading input");
return totalBytesRead;
}
/// Write `data` to `fd`, returns true iff success.
static bool writeData(ByteRange data, FILE* fd) {
while (!data.empty()) {
data.advance(std::fwrite(data.begin(), 1, data.size(), fd));
if (std::ferror(fd)) {
return false;
}
}
return true;
}
std::uint64_t writeFile(
SharedState& state,
WorkQueue<std::shared_ptr<BufferWorkQueue>>& outs,
FILE* outputFd,
bool decompress) {
auto& errorHolder = state.errorHolder;
auto lineClearGuard = makeScopeGuard([&state] {
state.log.clear(INFO);
});
std::uint64_t bytesWritten = 0;
std::shared_ptr<BufferWorkQueue> out;
// Grab the output queue for each decompression job (in order).
while (outs.pop(out) && !errorHolder.hasError()) {
if (!decompress) {
// If we are compressing and want to write skippable frames we can't
// start writing before compression is done because we need to know the
// compressed size.
// Wait for the compressed size to be available and write skippable frame
SkippableFrame frame(out->size());
if (!writeData(frame.data(), outputFd)) {
errorHolder.setError("Failed to write output");
return bytesWritten;
}
bytesWritten += frame.kSize;
}
// For each chunk of the frame: Pop it from the queue and write it
Buffer buffer;
while (out->pop(buffer) && !errorHolder.hasError()) {
if (!writeData(buffer.range(), outputFd)) {
errorHolder.setError("Failed to write output");
return bytesWritten;
}
bytesWritten += buffer.size();
state.log.update(INFO, "Written: %u MB ",
static_cast<std::uint32_t>(bytesWritten >> 20));
}
}
return bytesWritten;
}
}

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/**
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#pragma once
#include "ErrorHolder.h"
#include "Logging.h"
#include "Options.h"
#include "utils/Buffer.h"
#include "utils/Range.h"
#include "utils/ResourcePool.h"
#include "utils/ThreadPool.h"
#include "utils/WorkQueue.h"
#define ZSTD_STATIC_LINKING_ONLY
#include "zstd.h"
#undef ZSTD_STATIC_LINKING_ONLY
#include <cstddef>
#include <cstdint>
#include <memory>
namespace pzstd {
/**
* Runs pzstd with `options` and returns the number of bytes written.
* An error occurred if `errorHandler.hasError()`.
*
* @param options The pzstd options to use for (de)compression
* @returns 0 upon success and non-zero on failure.
*/
int pzstdMain(const Options& options);
class SharedState {
public:
SharedState(const Options& options) : log(options.verbosity) {
if (!options.decompress) {
auto parameters = options.determineParameters();
cStreamPool.reset(new ResourcePool<ZSTD_CStream>{
[this, parameters]() -> ZSTD_CStream* {
this->log(VERBOSE, "%s\n", "Creating new ZSTD_CStream");
auto zcs = ZSTD_createCStream();
if (zcs) {
auto err = ZSTD_initCStream_advanced(
zcs, nullptr, 0, parameters, 0);
if (ZSTD_isError(err)) {
ZSTD_freeCStream(zcs);
return nullptr;
}
}
return zcs;
},
[](ZSTD_CStream *zcs) {
ZSTD_freeCStream(zcs);
}});
} else {
dStreamPool.reset(new ResourcePool<ZSTD_DStream>{
[this]() -> ZSTD_DStream* {
this->log(VERBOSE, "%s\n", "Creating new ZSTD_DStream");
auto zds = ZSTD_createDStream();
if (zds) {
auto err = ZSTD_initDStream(zds);
if (ZSTD_isError(err)) {
ZSTD_freeDStream(zds);
return nullptr;
}
}
return zds;
},
[](ZSTD_DStream *zds) {
ZSTD_freeDStream(zds);
}});
}
}
~SharedState() {
// The resource pools have references to this, so destroy them first.
cStreamPool.reset();
dStreamPool.reset();
}
Logger log;
ErrorHolder errorHolder;
std::unique_ptr<ResourcePool<ZSTD_CStream>> cStreamPool;
std::unique_ptr<ResourcePool<ZSTD_DStream>> dStreamPool;
};
/**
* Streams input from `fd`, breaks input up into chunks, and compresses each
* chunk independently. Output of each chunk gets streamed to a queue, and
* the output queues get put into `chunks` in order.
*
* @param state The shared state
* @param chunks Each compression jobs output queue gets `pushed()` here
* as soon as it is available
* @param executor The thread pool to run compression jobs in
* @param fd The input file descriptor
* @param size The size of the input file if known, 0 otherwise
* @param numThreads The number of threads in the thread pool
* @param parameters The zstd parameters to use for compression
* @returns The number of bytes read from the file
*/
std::uint64_t asyncCompressChunks(
SharedState& state,
WorkQueue<std::shared_ptr<BufferWorkQueue>>& chunks,
ThreadPool& executor,
FILE* fd,
std::uintmax_t size,
std::size_t numThreads,
ZSTD_parameters parameters);
/**
* Streams input from `fd`. If pzstd headers are available it breaks the input
* up into independent frames. It sends each frame to an independent
* decompression job. Output of each frame gets streamed to a queue, and
* the output queues get put into `frames` in order.
*
* @param state The shared state
* @param frames Each decompression jobs output queue gets `pushed()` here
* as soon as it is available
* @param executor The thread pool to run compression jobs in
* @param fd The input file descriptor
* @returns The number of bytes read from the file
*/
std::uint64_t asyncDecompressFrames(
SharedState& state,
WorkQueue<std::shared_ptr<BufferWorkQueue>>& frames,
ThreadPool& executor,
FILE* fd);
/**
* Streams input in from each queue in `outs` in order, and writes the data to
* `outputFd`.
*
* @param state The shared state
* @param outs A queue of output queues, one for each
* (de)compression job.
* @param outputFd The file descriptor to write to
* @param decompress Are we decompressing?
* @returns The number of bytes written
*/
std::uint64_t writeFile(
SharedState& state,
WorkQueue<std::shared_ptr<BufferWorkQueue>>& outs,
FILE* outputFd,
bool decompress);
}

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# Parallel Zstandard (PZstandard)
Parallel Zstandard is a Pigz-like tool for Zstandard.
It provides Zstandard format compatible compression and decompression that is able to utilize multiple cores.
It breaks the input up into equal sized chunks and compresses each chunk independently into a Zstandard frame.
It then concatenates the frames together to produce the final compressed output.
Pzstandard will write a 12 byte header for each frame that is a skippable frame in the Zstandard format, which tells PZstandard the size of the next compressed frame.
PZstandard supports parallel decompression of files compressed with PZstandard.
When decompressing files compressed with Zstandard, PZstandard does IO in one thread, and decompression in another.
## Usage
PZstandard supports the same command line interface as Zstandard, but also provides the `-p` option to specify the number of threads.
Dictionary mode is not currently supported.
Basic usage
pzstd input-file -o output-file -p num-threads -# # Compression
pzstd -d input-file -o output-file -p num-threads # Decompression
PZstandard also supports piping and fifo pipes
cat input-file | pzstd -p num-threads -# -c > /dev/null
For more options
pzstd --help
PZstandard tries to pick a smart default number of threads if not specified (displayed in `pzstd --help`).
If this number is not suitable, during compilation you can define `PZSTD_NUM_THREADS` to the number of threads you prefer.
## Benchmarks
As a reference, PZstandard and Pigz were compared on an Intel Core i7 @ 3.1 GHz, each using 4 threads, with the [Silesia compression corpus](http://sun.aei.polsl.pl/~sdeor/index.php?page=silesia).
Compression Speed vs Ratio with 4 Threads | Decompression Speed with 4 Threads
------------------------------------------|-----------------------------------
![Compression Speed vs Ratio](images/Cspeed.png "Compression Speed vs Ratio") | ![Decompression Speed](images/Dspeed.png "Decompression Speed")
The test procedure was to run each of the following commands 2 times for each compression level, and take the minimum time.
time pzstd -# -p 4 -c silesia.tar > silesia.tar.zst
time pzstd -d -p 4 -c silesia.tar.zst > /dev/null
time pigz -# -p 4 -k -c silesia.tar > silesia.tar.gz
time pigz -d -p 4 -k -c silesia.tar.gz > /dev/null
PZstandard was tested using compression levels 1-19, and Pigz was tested using compression levels 1-9.
Pigz cannot do parallel decompression, it simply does each of reading, decompression, and writing on separate threads.
## Tests
Tests require that you have [gtest](https://github.com/google/googletest) installed.
Set `GTEST_INC` and `GTEST_LIB` in `Makefile` to specify the location of the gtest headers and libraries.
Alternatively, run `make googletest`, which will clone googletest and build it.
Run `make tests && make check` to run tests.

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/**
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#include "SkippableFrame.h"
#include "mem.h"
#include "utils/Range.h"
#include <cstdio>
using namespace pzstd;
SkippableFrame::SkippableFrame(std::uint32_t size) : frameSize_(size) {
MEM_writeLE32(data_.data(), kSkippableFrameMagicNumber);
MEM_writeLE32(data_.data() + 4, kFrameContentsSize);
MEM_writeLE32(data_.data() + 8, frameSize_);
}
/* static */ std::size_t SkippableFrame::tryRead(ByteRange bytes) {
if (bytes.size() < SkippableFrame::kSize ||
MEM_readLE32(bytes.begin()) != kSkippableFrameMagicNumber ||
MEM_readLE32(bytes.begin() + 4) != kFrameContentsSize) {
return 0;
}
return MEM_readLE32(bytes.begin() + 8);
}

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/**
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#pragma once
#include "utils/Range.h"
#include <array>
#include <cstddef>
#include <cstdint>
#include <cstdio>
namespace pzstd {
/**
* We put a skippable frame before each frame.
* It contains a skippable frame magic number, the size of the skippable frame,
* and the size of the next frame.
* Each skippable frame is exactly 12 bytes in little endian format.
* The first 8 bytes are for compatibility with the ZSTD format.
* If we have N threads, the output will look like
*
* [0x184D2A50|4|size1] [frame1 of size size1]
* [0x184D2A50|4|size2] [frame2 of size size2]
* ...
* [0x184D2A50|4|sizeN] [frameN of size sizeN]
*
* Each sizeX is 4 bytes.
*
* These skippable frames should allow us to skip through the compressed file
* and only load at most N pages.
*/
class SkippableFrame {
public:
static constexpr std::size_t kSize = 12;
private:
std::uint32_t frameSize_;
std::array<std::uint8_t, kSize> data_;
static constexpr std::uint32_t kSkippableFrameMagicNumber = 0x184D2A50;
// Could be improved if the size fits in less bytes
static constexpr std::uint32_t kFrameContentsSize = kSize - 8;
public:
// Write the skippable frame to data_ in LE format.
explicit SkippableFrame(std::uint32_t size);
// Read the skippable frame from bytes in LE format.
static std::size_t tryRead(ByteRange bytes);
ByteRange data() const {
return {data_.data(), data_.size()};
}
// Size of the next frame.
std::size_t frameSize() const {
return frameSize_;
}
};
}

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/**
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#include "ErrorHolder.h"
#include "Options.h"
#include "Pzstd.h"
using namespace pzstd;
int main(int argc, const char** argv) {
Options options;
switch (options.parse(argc, argv)) {
case Options::Status::Failure:
return 1;
case Options::Status::Message:
return 0;
default:
break;
}
return pzstdMain(options);
}

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cxx_test(
name='options_test',
srcs=['OptionsTest.cpp'],
deps=['//contrib/pzstd:options'],
)
cxx_test(
name='pzstd_test',
srcs=['PzstdTest.cpp'],
deps=[
':round_trip',
'//contrib/pzstd:libpzstd',
'//contrib/pzstd/utils:scope_guard',
'//programs:datagen',
],
)
cxx_binary(
name='round_trip_test',
srcs=['RoundTripTest.cpp'],
deps=[
':round_trip',
'//contrib/pzstd/utils:scope_guard',
'//programs:datagen',
]
)
cxx_library(
name='round_trip',
header_namespace='test',
exported_headers=['RoundTrip.h'],
deps=[
'//contrib/pzstd:libpzstd',
'//contrib/pzstd:options',
'//contrib/pzstd/utils:scope_guard',
]
)

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/**
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#include "Options.h"
#include <array>
#include <gtest/gtest.h>
using namespace pzstd;
namespace pzstd {
bool operator==(const Options &lhs, const Options &rhs) {
return lhs.numThreads == rhs.numThreads &&
lhs.maxWindowLog == rhs.maxWindowLog &&
lhs.compressionLevel == rhs.compressionLevel &&
lhs.decompress == rhs.decompress && lhs.inputFiles == rhs.inputFiles &&
lhs.outputFile == rhs.outputFile && lhs.overwrite == rhs.overwrite &&
lhs.keepSource == rhs.keepSource && lhs.writeMode == rhs.writeMode &&
lhs.checksum == rhs.checksum && lhs.verbosity == rhs.verbosity;
}
std::ostream &operator<<(std::ostream &out, const Options &opt) {
out << "{";
{
out << "\n\t"
<< "numThreads: " << opt.numThreads;
out << ",\n\t"
<< "maxWindowLog: " << opt.maxWindowLog;
out << ",\n\t"
<< "compressionLevel: " << opt.compressionLevel;
out << ",\n\t"
<< "decompress: " << opt.decompress;
out << ",\n\t"
<< "inputFiles: {";
{
bool first = true;
for (const auto &file : opt.inputFiles) {
if (!first) {
out << ",";
}
first = false;
out << "\n\t\t" << file;
}
}
out << "\n\t}";
out << ",\n\t"
<< "outputFile: " << opt.outputFile;
out << ",\n\t"
<< "overwrite: " << opt.overwrite;
out << ",\n\t"
<< "keepSource: " << opt.keepSource;
out << ",\n\t"
<< "writeMode: " << static_cast<int>(opt.writeMode);
out << ",\n\t"
<< "checksum: " << opt.checksum;
out << ",\n\t"
<< "verbosity: " << opt.verbosity;
}
out << "\n}";
return out;
}
}
namespace {
#ifdef _WIN32
const char nullOutput[] = "nul";
#else
const char nullOutput[] = "/dev/null";
#endif
constexpr auto autoMode = Options::WriteMode::Auto;
} // anonymous namespace
#define EXPECT_SUCCESS(...) EXPECT_EQ(Options::Status::Success, __VA_ARGS__)
#define EXPECT_FAILURE(...) EXPECT_EQ(Options::Status::Failure, __VA_ARGS__)
#define EXPECT_MESSAGE(...) EXPECT_EQ(Options::Status::Message, __VA_ARGS__)
template <typename... Args>
std::array<const char *, sizeof...(Args) + 1> makeArray(Args... args) {
return {{nullptr, args...}};
}
TEST(Options, ValidInputs) {
{
Options options;
auto args = makeArray("--processes", "5", "-o", "x", "y", "-f");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
Options expected = {5, 23, 3, false, {"y"}, "x",
true, true, autoMode, true, 2};
EXPECT_EQ(expected, options);
}
{
Options options;
auto args = makeArray("-p", "1", "input", "-19");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
Options expected = {1, 23, 19, false, {"input"}, "",
false, true, autoMode, true, 2};
EXPECT_EQ(expected, options);
}
{
Options options;
auto args =
makeArray("--ultra", "-22", "-p", "1", "-o", "x", "-d", "x.zst", "-f");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
Options expected = {1, 0, 22, true, {"x.zst"}, "x",
true, true, autoMode, true, 2};
EXPECT_EQ(expected, options);
}
{
Options options;
auto args = makeArray("--processes", "100", "hello.zst", "--decompress",
"--force");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
Options expected = {100, 23, 3, true, {"hello.zst"}, "", true,
true, autoMode, true, 2};
EXPECT_EQ(expected, options);
}
{
Options options;
auto args = makeArray("x", "-dp", "1", "-c");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
Options expected = {1, 23, 3, true, {"x"}, "-",
false, true, autoMode, true, 2};
EXPECT_EQ(expected, options);
}
{
Options options;
auto args = makeArray("x", "-dp", "1", "--stdout");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
Options expected = {1, 23, 3, true, {"x"}, "-",
false, true, autoMode, true, 2};
EXPECT_EQ(expected, options);
}
{
Options options;
auto args = makeArray("-p", "1", "x", "-5", "-fo", "-", "--ultra", "-d");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
Options expected = {1, 0, 5, true, {"x"}, "-",
true, true, autoMode, true, 2};
EXPECT_EQ(expected, options);
}
{
Options options;
auto args = makeArray("silesia.tar", "-o", "silesia.tar.pzstd", "-p", "2");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
Options expected = {2,
23,
3,
false,
{"silesia.tar"},
"silesia.tar.pzstd",
false,
true,
autoMode,
true,
2};
EXPECT_EQ(expected, options);
}
{
Options options;
auto args = makeArray("x", "-p", "1");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
}
{
Options options;
auto args = makeArray("x", "-p", "1");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
}
}
TEST(Options, GetOutputFile) {
{
Options options;
auto args = makeArray("x");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
EXPECT_EQ("x.zst", options.getOutputFile(options.inputFiles[0]));
}
{
Options options;
auto args = makeArray("x", "y", "-o", nullOutput);
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
EXPECT_EQ(nullOutput, options.getOutputFile(options.inputFiles[0]));
}
{
Options options;
auto args = makeArray("x.zst", "-do", nullOutput);
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
EXPECT_EQ(nullOutput, options.getOutputFile(options.inputFiles[0]));
}
{
Options options;
auto args = makeArray("x.zst", "-d");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
EXPECT_EQ("x", options.getOutputFile(options.inputFiles[0]));
}
{
Options options;
auto args = makeArray("xzst", "-d");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
EXPECT_EQ("", options.getOutputFile(options.inputFiles[0]));
}
{
Options options;
auto args = makeArray("xzst", "-doxx");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
EXPECT_EQ("xx", options.getOutputFile(options.inputFiles[0]));
}
}
TEST(Options, MultipleFiles) {
{
Options options;
auto args = makeArray("x", "y", "z");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
Options expected;
expected.inputFiles = {"x", "y", "z"};
expected.verbosity = 1;
EXPECT_EQ(expected, options);
}
{
Options options;
auto args = makeArray("x", "y", "z", "-o", nullOutput);
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
Options expected;
expected.inputFiles = {"x", "y", "z"};
expected.outputFile = nullOutput;
expected.verbosity = 1;
EXPECT_EQ(expected, options);
}
{
Options options;
auto args = makeArray("x", "y", "-o-");
EXPECT_FAILURE(options.parse(args.size(), args.data()));
}
{
Options options;
auto args = makeArray("x", "y", "-o", "file");
EXPECT_FAILURE(options.parse(args.size(), args.data()));
}
{
Options options;
auto args = makeArray("-qqvd12qp4", "-f", "x", "--", "--rm", "-c");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
Options expected = {4, 23, 12, true, {"x", "--rm", "-c"},
"", true, true, autoMode, true,
0};
EXPECT_EQ(expected, options);
}
}
TEST(Options, NumThreads) {
{
Options options;
auto args = makeArray("x", "-dfo", "-");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
}
{
Options options;
auto args = makeArray("x", "-p", "0", "-fo", "-");
EXPECT_FAILURE(options.parse(args.size(), args.data()));
}
{
Options options;
auto args = makeArray("-f", "-p", "-o", "-");
EXPECT_FAILURE(options.parse(args.size(), args.data()));
}
}
TEST(Options, BadCompressionLevel) {
{
Options options;
auto args = makeArray("x", "-20");
EXPECT_FAILURE(options.parse(args.size(), args.data()));
}
{
Options options;
auto args = makeArray("x", "--ultra", "-23");
EXPECT_FAILURE(options.parse(args.size(), args.data()));
}
{
Options options;
auto args = makeArray("x", "--1"); // negative 1?
EXPECT_FAILURE(options.parse(args.size(), args.data()));
}
}
TEST(Options, InvalidOption) {
{
Options options;
auto args = makeArray("x", "-x");
EXPECT_FAILURE(options.parse(args.size(), args.data()));
}
}
TEST(Options, BadOutputFile) {
{
Options options;
auto args = makeArray("notzst", "-d", "-p", "1");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
EXPECT_EQ("", options.getOutputFile(options.inputFiles.front()));
}
}
TEST(Options, BadOptionsWithArguments) {
{
Options options;
auto args = makeArray("x", "-pf");
EXPECT_FAILURE(options.parse(args.size(), args.data()));
}
{
Options options;
auto args = makeArray("x", "-p", "10f");
EXPECT_FAILURE(options.parse(args.size(), args.data()));
}
{
Options options;
auto args = makeArray("x", "-p");
EXPECT_FAILURE(options.parse(args.size(), args.data()));
}
{
Options options;
auto args = makeArray("x", "-o");
EXPECT_FAILURE(options.parse(args.size(), args.data()));
}
{
Options options;
auto args = makeArray("x", "-o");
EXPECT_FAILURE(options.parse(args.size(), args.data()));
}
}
TEST(Options, KeepSource) {
{
Options options;
auto args = makeArray("x", "--rm", "-k");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
EXPECT_EQ(true, options.keepSource);
}
{
Options options;
auto args = makeArray("x", "--rm", "--keep");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
EXPECT_EQ(true, options.keepSource);
}
{
Options options;
auto args = makeArray("x");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
EXPECT_EQ(true, options.keepSource);
}
{
Options options;
auto args = makeArray("x", "--rm");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
EXPECT_EQ(false, options.keepSource);
}
}
TEST(Options, Verbosity) {
{
Options options;
auto args = makeArray("x");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
EXPECT_EQ(2, options.verbosity);
}
{
Options options;
auto args = makeArray("--quiet", "-qq", "x");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
EXPECT_EQ(-1, options.verbosity);
}
{
Options options;
auto args = makeArray("x", "y");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
EXPECT_EQ(1, options.verbosity);
}
{
Options options;
auto args = makeArray("--", "x", "y");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
EXPECT_EQ(1, options.verbosity);
}
{
Options options;
auto args = makeArray("-qv", "x", "y");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
EXPECT_EQ(1, options.verbosity);
}
{
Options options;
auto args = makeArray("-v", "x", "y");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
EXPECT_EQ(3, options.verbosity);
}
{
Options options;
auto args = makeArray("-v", "x");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
EXPECT_EQ(3, options.verbosity);
}
}
TEST(Options, TestMode) {
{
Options options;
auto args = makeArray("x", "-t");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
EXPECT_EQ(true, options.keepSource);
EXPECT_EQ(true, options.decompress);
EXPECT_EQ(nullOutput, options.outputFile);
}
{
Options options;
auto args = makeArray("x", "--test", "--rm", "-ohello");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
EXPECT_EQ(true, options.keepSource);
EXPECT_EQ(true, options.decompress);
EXPECT_EQ(nullOutput, options.outputFile);
}
}
TEST(Options, Checksum) {
{
Options options;
auto args = makeArray("x.zst", "--no-check", "-Cd");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
EXPECT_EQ(true, options.checksum);
}
{
Options options;
auto args = makeArray("x");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
EXPECT_EQ(true, options.checksum);
}
{
Options options;
auto args = makeArray("x", "--no-check", "--check");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
EXPECT_EQ(true, options.checksum);
}
{
Options options;
auto args = makeArray("x", "--no-check");
EXPECT_SUCCESS(options.parse(args.size(), args.data()));
EXPECT_EQ(false, options.checksum);
}
}
TEST(Options, InputFiles) {
{
Options options;
auto args = makeArray("-cd");
options.parse(args.size(), args.data());
EXPECT_EQ(1, options.inputFiles.size());
EXPECT_EQ("-", options.inputFiles[0]);
EXPECT_EQ("-", options.outputFile);
}
{
Options options;
auto args = makeArray();
options.parse(args.size(), args.data());
EXPECT_EQ(1, options.inputFiles.size());
EXPECT_EQ("-", options.inputFiles[0]);
EXPECT_EQ("-", options.outputFile);
}
{
Options options;
auto args = makeArray("-d");
options.parse(args.size(), args.data());
EXPECT_EQ(1, options.inputFiles.size());
EXPECT_EQ("-", options.inputFiles[0]);
EXPECT_EQ("-", options.outputFile);
}
{
Options options;
auto args = makeArray("x", "-");
EXPECT_FAILURE(options.parse(args.size(), args.data()));
}
}
TEST(Options, InvalidOptions) {
{
Options options;
auto args = makeArray("-ibasdf");
EXPECT_FAILURE(options.parse(args.size(), args.data()));
}
{
Options options;
auto args = makeArray("- ");
EXPECT_FAILURE(options.parse(args.size(), args.data()));
}
{
Options options;
auto args = makeArray("-n15");
EXPECT_FAILURE(options.parse(args.size(), args.data()));
}
{
Options options;
auto args = makeArray("-0", "x");
EXPECT_FAILURE(options.parse(args.size(), args.data()));
}
}
TEST(Options, Extras) {
{
Options options;
auto args = makeArray("-h");
EXPECT_MESSAGE(options.parse(args.size(), args.data()));
}
{
Options options;
auto args = makeArray("-H");
EXPECT_MESSAGE(options.parse(args.size(), args.data()));
}
{
Options options;
auto args = makeArray("-V");
EXPECT_MESSAGE(options.parse(args.size(), args.data()));
}
{
Options options;
auto args = makeArray("--help");
EXPECT_MESSAGE(options.parse(args.size(), args.data()));
}
{
Options options;
auto args = makeArray("--version");
EXPECT_MESSAGE(options.parse(args.size(), args.data()));
}
}

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/**
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#include "Pzstd.h"
extern "C" {
#include "datagen.h"
}
#include "test/RoundTrip.h"
#include "utils/ScopeGuard.h"
#include <cstddef>
#include <cstdio>
#include <gtest/gtest.h>
#include <memory>
#include <random>
using namespace std;
using namespace pzstd;
TEST(Pzstd, SmallSizes) {
unsigned seed = std::random_device{}();
std::fprintf(stderr, "Pzstd.SmallSizes seed: %u\n", seed);
std::mt19937 gen(seed);
for (unsigned len = 1; len < 256; ++len) {
if (len % 16 == 0) {
std::fprintf(stderr, "%u / 16\n", len / 16);
}
std::string inputFile = std::tmpnam(nullptr);
auto guard = makeScopeGuard([&] { std::remove(inputFile.c_str()); });
{
static uint8_t buf[256];
RDG_genBuffer(buf, len, 0.5, 0.0, gen());
auto fd = std::fopen(inputFile.c_str(), "wb");
auto written = std::fwrite(buf, 1, len, fd);
std::fclose(fd);
ASSERT_EQ(written, len);
}
for (unsigned numThreads = 1; numThreads <= 2; ++numThreads) {
for (unsigned level = 1; level <= 4; level *= 4) {
auto errorGuard = makeScopeGuard([&] {
std::fprintf(stderr, "# threads: %u\n", numThreads);
std::fprintf(stderr, "compression level: %u\n", level);
});
Options options;
options.overwrite = true;
options.inputFiles = {inputFile};
options.numThreads = numThreads;
options.compressionLevel = level;
options.verbosity = 1;
ASSERT_TRUE(roundTrip(options));
errorGuard.dismiss();
}
}
}
}
TEST(Pzstd, LargeSizes) {
unsigned seed = std::random_device{}();
std::fprintf(stderr, "Pzstd.LargeSizes seed: %u\n", seed);
std::mt19937 gen(seed);
for (unsigned len = 1 << 20; len <= (1 << 24); len *= 2) {
std::string inputFile = std::tmpnam(nullptr);
auto guard = makeScopeGuard([&] { std::remove(inputFile.c_str()); });
{
std::unique_ptr<uint8_t[]> buf(new uint8_t[len]);
RDG_genBuffer(buf.get(), len, 0.5, 0.0, gen());
auto fd = std::fopen(inputFile.c_str(), "wb");
auto written = std::fwrite(buf.get(), 1, len, fd);
std::fclose(fd);
ASSERT_EQ(written, len);
}
for (unsigned numThreads = 1; numThreads <= 16; numThreads *= 4) {
for (unsigned level = 1; level <= 4; level *= 4) {
auto errorGuard = makeScopeGuard([&] {
std::fprintf(stderr, "# threads: %u\n", numThreads);
std::fprintf(stderr, "compression level: %u\n", level);
});
Options options;
options.overwrite = true;
options.inputFiles = {inputFile};
options.numThreads = std::min(numThreads, options.numThreads);
options.compressionLevel = level;
options.verbosity = 1;
ASSERT_TRUE(roundTrip(options));
errorGuard.dismiss();
}
}
}
}
TEST(Pzstd, DISABLED_ExtremelyLargeSize) {
unsigned seed = std::random_device{}();
std::fprintf(stderr, "Pzstd.ExtremelyLargeSize seed: %u\n", seed);
std::mt19937 gen(seed);
std::string inputFile = std::tmpnam(nullptr);
auto guard = makeScopeGuard([&] { std::remove(inputFile.c_str()); });
{
// Write 4GB + 64 MB
constexpr size_t kLength = 1 << 26;
std::unique_ptr<uint8_t[]> buf(new uint8_t[kLength]);
auto fd = std::fopen(inputFile.c_str(), "wb");
auto closeGuard = makeScopeGuard([&] { std::fclose(fd); });
for (size_t i = 0; i < (1 << 6) + 1; ++i) {
RDG_genBuffer(buf.get(), kLength, 0.5, 0.0, gen());
auto written = std::fwrite(buf.get(), 1, kLength, fd);
if (written != kLength) {
std::fprintf(stderr, "Failed to write file, skipping test\n");
return;
}
}
}
Options options;
options.overwrite = true;
options.inputFiles = {inputFile};
options.compressionLevel = 1;
if (options.numThreads == 0) {
options.numThreads = 1;
}
ASSERT_TRUE(roundTrip(options));
}
TEST(Pzstd, ExtremelyCompressible) {
std::string inputFile = std::tmpnam(nullptr);
auto guard = makeScopeGuard([&] { std::remove(inputFile.c_str()); });
{
std::unique_ptr<uint8_t[]> buf(new uint8_t[10000]);
std::memset(buf.get(), 'a', 10000);
auto fd = std::fopen(inputFile.c_str(), "wb");
auto written = std::fwrite(buf.get(), 1, 10000, fd);
std::fclose(fd);
ASSERT_EQ(written, 10000);
}
Options options;
options.overwrite = true;
options.inputFiles = {inputFile};
options.numThreads = 1;
options.compressionLevel = 1;
ASSERT_TRUE(roundTrip(options));
}

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/**
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#pragma once
#include "Options.h"
#include "Pzstd.h"
#include "utils/ScopeGuard.h"
#include <cstdio>
#include <string>
#include <cstdint>
#include <memory>
namespace pzstd {
inline bool check(std::string source, std::string decompressed) {
std::unique_ptr<std::uint8_t[]> sBuf(new std::uint8_t[1024]);
std::unique_ptr<std::uint8_t[]> dBuf(new std::uint8_t[1024]);
auto sFd = std::fopen(source.c_str(), "rb");
auto dFd = std::fopen(decompressed.c_str(), "rb");
auto guard = makeScopeGuard([&] {
std::fclose(sFd);
std::fclose(dFd);
});
size_t sRead, dRead;
do {
sRead = std::fread(sBuf.get(), 1, 1024, sFd);
dRead = std::fread(dBuf.get(), 1, 1024, dFd);
if (std::ferror(sFd) || std::ferror(dFd)) {
return false;
}
if (sRead != dRead) {
return false;
}
for (size_t i = 0; i < sRead; ++i) {
if (sBuf.get()[i] != dBuf.get()[i]) {
return false;
}
}
} while (sRead == 1024);
if (!std::feof(sFd) || !std::feof(dFd)) {
return false;
}
return true;
}
inline bool roundTrip(Options& options) {
if (options.inputFiles.size() != 1) {
return false;
}
std::string source = options.inputFiles.front();
std::string compressedFile = std::tmpnam(nullptr);
std::string decompressedFile = std::tmpnam(nullptr);
auto guard = makeScopeGuard([&] {
std::remove(compressedFile.c_str());
std::remove(decompressedFile.c_str());
});
{
options.outputFile = compressedFile;
options.decompress = false;
if (pzstdMain(options) != 0) {
return false;
}
}
{
options.decompress = true;
options.inputFiles.front() = compressedFile;
options.outputFile = decompressedFile;
if (pzstdMain(options) != 0) {
return false;
}
}
return check(source, decompressedFile);
}
}

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/**
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
extern "C" {
#include "datagen.h"
}
#include "Options.h"
#include "test/RoundTrip.h"
#include "utils/ScopeGuard.h"
#include <cstddef>
#include <cstdio>
#include <cstdlib>
#include <memory>
#include <random>
using namespace std;
using namespace pzstd;
namespace {
string
writeData(size_t size, double matchProba, double litProba, unsigned seed) {
std::unique_ptr<uint8_t[]> buf(new uint8_t[size]);
RDG_genBuffer(buf.get(), size, matchProba, litProba, seed);
string file = tmpnam(nullptr);
auto fd = std::fopen(file.c_str(), "wb");
auto guard = makeScopeGuard([&] { std::fclose(fd); });
auto bytesWritten = std::fwrite(buf.get(), 1, size, fd);
if (bytesWritten != size) {
std::abort();
}
return file;
}
template <typename Generator>
string generateInputFile(Generator& gen) {
// Use inputs ranging from 1 Byte to 2^16 Bytes
std::uniform_int_distribution<size_t> size{1, 1 << 16};
std::uniform_real_distribution<> prob{0, 1};
return writeData(size(gen), prob(gen), prob(gen), gen());
}
template <typename Generator>
Options generateOptions(Generator& gen, const string& inputFile) {
Options options;
options.inputFiles = {inputFile};
options.overwrite = true;
std::uniform_int_distribution<unsigned> numThreads{1, 32};
std::uniform_int_distribution<unsigned> compressionLevel{1, 10};
options.numThreads = numThreads(gen);
options.compressionLevel = compressionLevel(gen);
return options;
}
}
int main() {
std::mt19937 gen(std::random_device{}());
auto newlineGuard = makeScopeGuard([] { std::fprintf(stderr, "\n"); });
for (unsigned i = 0; i < 10000; ++i) {
if (i % 100 == 0) {
std::fprintf(stderr, "Progress: %u%%\r", i / 100);
}
auto inputFile = generateInputFile(gen);
auto inputGuard = makeScopeGuard([&] { std::remove(inputFile.c_str()); });
for (unsigned i = 0; i < 10; ++i) {
auto options = generateOptions(gen, inputFile);
if (!roundTrip(options)) {
std::fprintf(stderr, "numThreads: %u\n", options.numThreads);
std::fprintf(stderr, "level: %u\n", options.compressionLevel);
std::fprintf(stderr, "decompress? %u\n", (unsigned)options.decompress);
std::fprintf(stderr, "file: %s\n", inputFile.c_str());
return 1;
}
}
}
return 0;
}

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cxx_library(
name='buffer',
visibility=['PUBLIC'],
header_namespace='utils',
exported_headers=['Buffer.h'],
deps=[':range'],
)
cxx_library(
name='file_system',
visibility=['PUBLIC'],
header_namespace='utils',
exported_headers=['FileSystem.h'],
deps=[':range'],
)
cxx_library(
name='likely',
visibility=['PUBLIC'],
header_namespace='utils',
exported_headers=['Likely.h'],
)
cxx_library(
name='range',
visibility=['PUBLIC'],
header_namespace='utils',
exported_headers=['Range.h'],
deps=[':likely'],
)
cxx_library(
name='resource_pool',
visibility=['PUBLIC'],
header_namespace='utils',
exported_headers=['ResourcePool.h'],
)
cxx_library(
name='scope_guard',
visibility=['PUBLIC'],
header_namespace='utils',
exported_headers=['ScopeGuard.h'],
)
cxx_library(
name='thread_pool',
visibility=['PUBLIC'],
header_namespace='utils',
exported_headers=['ThreadPool.h'],
deps=[':work_queue'],
)
cxx_library(
name='work_queue',
visibility=['PUBLIC'],
header_namespace='utils',
exported_headers=['WorkQueue.h'],
deps=[':buffer'],
)
cxx_library(
name='utils',
visibility=['PUBLIC'],
deps=[
':buffer',
':file_system',
':likely',
':range',
':resource_pool',
':scope_guard',
':thread_pool',
':work_queue',
],
)

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/**
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#pragma once
#include "utils/Range.h"
#include <array>
#include <cstddef>
#include <memory>
namespace pzstd {
/**
* A `Buffer` has a pointer to a shared buffer, and a range of the buffer that
* it owns.
* The idea is that you can allocate one buffer, and write chunks into it
* and break off those chunks.
* The underlying buffer is reference counted, and will be destroyed when all
* `Buffer`s that reference it are destroyed.
*/
class Buffer {
std::shared_ptr<unsigned char> buffer_;
MutableByteRange range_;
static void delete_buffer(unsigned char* buffer) {
delete[] buffer;
}
public:
/// Construct an empty buffer that owns no data.
explicit Buffer() {}
/// Construct a `Buffer` that owns a new underlying buffer of size `size`.
explicit Buffer(std::size_t size)
: buffer_(new unsigned char[size], delete_buffer),
range_(buffer_.get(), buffer_.get() + size) {}
explicit Buffer(std::shared_ptr<unsigned char> buffer, MutableByteRange data)
: buffer_(buffer), range_(data) {}
Buffer(Buffer&&) = default;
Buffer& operator=(Buffer&&) & = default;
/**
* Splits the data into two pieces: [begin, begin + n), [begin + n, end).
* Their data both points into the same underlying buffer.
* Modifies the original `Buffer` to point to only [begin + n, end).
*
* @param n The offset to split at.
* @returns A buffer that owns the data [begin, begin + n).
*/
Buffer splitAt(std::size_t n) {
auto firstPiece = range_.subpiece(0, n);
range_.advance(n);
return Buffer(buffer_, firstPiece);
}
/// Modifies the buffer to point to the range [begin + n, end).
void advance(std::size_t n) {
range_.advance(n);
}
/// Modifies the buffer to point to the range [begin, end - n).
void subtract(std::size_t n) {
range_.subtract(n);
}
/// Returns a read only `Range` pointing to the `Buffer`s data.
ByteRange range() const {
return range_;
}
/// Returns a mutable `Range` pointing to the `Buffer`s data.
MutableByteRange range() {
return range_;
}
const unsigned char* data() const {
return range_.data();
}
unsigned char* data() {
return range_.data();
}
std::size_t size() const {
return range_.size();
}
bool empty() const {
return range_.empty();
}
};
}

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/**
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#pragma once
#include "utils/Range.h"
#include <sys/stat.h>
#include <cerrno>
#include <cstdint>
#include <system_error>
// A small subset of `std::filesystem`.
// `std::filesystem` should be a drop in replacement.
// See http://en.cppreference.com/w/cpp/filesystem for documentation.
namespace pzstd {
// using file_status = ... causes gcc to emit a false positive warning
#if defined(_MSC_VER)
typedef struct ::_stat64 file_status;
#else
typedef struct ::stat file_status;
#endif
/// http://en.cppreference.com/w/cpp/filesystem/status
inline file_status status(StringPiece path, std::error_code& ec) noexcept {
file_status status;
#if defined(_MSC_VER)
const auto error = ::_stat64(path.data(), &status);
#else
const auto error = ::stat(path.data(), &status);
#endif
if (error) {
ec.assign(errno, std::generic_category());
} else {
ec.clear();
}
return status;
}
/// http://en.cppreference.com/w/cpp/filesystem/is_regular_file
inline bool is_regular_file(file_status status) noexcept {
#if defined(S_ISREG)
return S_ISREG(status.st_mode);
#elif !defined(S_ISREG) && defined(S_IFMT) && defined(S_IFREG)
return (status.st_mode & S_IFMT) == S_IFREG;
#else
static_assert(false, "No POSIX stat() support.");
#endif
}
/// http://en.cppreference.com/w/cpp/filesystem/is_regular_file
inline bool is_regular_file(StringPiece path, std::error_code& ec) noexcept {
return is_regular_file(status(path, ec));
}
/// http://en.cppreference.com/w/cpp/filesystem/is_directory
inline bool is_directory(file_status status) noexcept {
#if defined(S_ISDIR)
return S_ISDIR(status.st_mode);
#elif !defined(S_ISDIR) && defined(S_IFMT) && defined(S_IFDIR)
return (status.st_mode & S_IFMT) == S_IFDIR;
#else
static_assert(false, "NO POSIX stat() support.");
#endif
}
/// http://en.cppreference.com/w/cpp/filesystem/is_directory
inline bool is_directory(StringPiece path, std::error_code& ec) noexcept {
return is_directory(status(path, ec));
}
/// http://en.cppreference.com/w/cpp/filesystem/file_size
inline std::uintmax_t file_size(
StringPiece path,
std::error_code& ec) noexcept {
auto stat = status(path, ec);
if (ec) {
return -1;
}
if (!is_regular_file(stat)) {
ec.assign(ENOTSUP, std::generic_category());
return -1;
}
ec.clear();
return stat.st_size;
}
}

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/**
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
/**
* Compiler hints to indicate the fast path of an "if" branch: whether
* the if condition is likely to be true or false.
*
* @author Tudor Bosman (tudorb@fb.com)
*/
#pragma once
#undef LIKELY
#undef UNLIKELY
#if defined(__GNUC__) && __GNUC__ >= 4
#define LIKELY(x) (__builtin_expect((x), 1))
#define UNLIKELY(x) (__builtin_expect((x), 0))
#else
#define LIKELY(x) (x)
#define UNLIKELY(x) (x)
#endif

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/**
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
/**
* A subset of `folly/Range.h`.
* All code copied verbatiam modulo formatting
*/
#pragma once
#include "utils/Likely.h"
#include <cstddef>
#include <cstring>
#include <stdexcept>
#include <string>
#include <type_traits>
namespace pzstd {
namespace detail {
/*
*Use IsCharPointer<T>::type to enable const char* or char*.
*Use IsCharPointer<T>::const_type to enable only const char*.
*/
template <class T>
struct IsCharPointer {};
template <>
struct IsCharPointer<char*> {
typedef int type;
};
template <>
struct IsCharPointer<const char*> {
typedef int const_type;
typedef int type;
};
} // namespace detail
template <typename Iter>
class Range {
Iter b_;
Iter e_;
public:
using size_type = std::size_t;
using iterator = Iter;
using const_iterator = Iter;
using value_type = typename std::remove_reference<
typename std::iterator_traits<Iter>::reference>::type;
using reference = typename std::iterator_traits<Iter>::reference;
constexpr Range() : b_(), e_() {}
constexpr Range(Iter begin, Iter end) : b_(begin), e_(end) {}
constexpr Range(Iter begin, size_type size) : b_(begin), e_(begin + size) {}
template <class T = Iter, typename detail::IsCharPointer<T>::type = 0>
/* implicit */ Range(Iter str) : b_(str), e_(str + std::strlen(str)) {}
template <class T = Iter, typename detail::IsCharPointer<T>::const_type = 0>
/* implicit */ Range(const std::string& str)
: b_(str.data()), e_(b_ + str.size()) {}
// Allow implicit conversion from Range<From> to Range<To> if From is
// implicitly convertible to To.
template <
class OtherIter,
typename std::enable_if<
(!std::is_same<Iter, OtherIter>::value &&
std::is_convertible<OtherIter, Iter>::value),
int>::type = 0>
constexpr /* implicit */ Range(const Range<OtherIter>& other)
: b_(other.begin()), e_(other.end()) {}
Range(const Range&) = default;
Range(Range&&) = default;
Range& operator=(const Range&) & = default;
Range& operator=(Range&&) & = default;
constexpr size_type size() const {
return e_ - b_;
}
bool empty() const {
return b_ == e_;
}
Iter data() const {
return b_;
}
Iter begin() const {
return b_;
}
Iter end() const {
return e_;
}
void advance(size_type n) {
if (UNLIKELY(n > size())) {
throw std::out_of_range("index out of range");
}
b_ += n;
}
void subtract(size_type n) {
if (UNLIKELY(n > size())) {
throw std::out_of_range("index out of range");
}
e_ -= n;
}
Range subpiece(size_type first, size_type length = std::string::npos) const {
if (UNLIKELY(first > size())) {
throw std::out_of_range("index out of range");
}
return Range(b_ + first, std::min(length, size() - first));
}
};
using ByteRange = Range<const unsigned char*>;
using MutableByteRange = Range<unsigned char*>;
using StringPiece = Range<const char*>;
}

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/**
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#pragma once
#include <cassert>
#include <functional>
#include <memory>
#include <mutex>
#include <vector>
namespace pzstd {
/**
* An unbounded pool of resources.
* A `ResourcePool<T>` requires a factory function that takes allocates `T*` and
* a free function that frees a `T*`.
* Calling `ResourcePool::get()` will give you a new `ResourcePool::UniquePtr`
* to a `T`, and when it goes out of scope the resource will be returned to the
* pool.
* The `ResourcePool<T>` *must* survive longer than any resources it hands out.
* Remember that `ResourcePool<T>` hands out mutable `T`s, so make sure to clean
* up the resource before or after every use.
*/
template <typename T>
class ResourcePool {
public:
class Deleter;
using Factory = std::function<T*()>;
using Free = std::function<void(T*)>;
using UniquePtr = std::unique_ptr<T, Deleter>;
private:
std::mutex mutex_;
Factory factory_;
Free free_;
std::vector<T*> resources_;
unsigned inUse_;
public:
/**
* Creates a `ResourcePool`.
*
* @param factory The function to use to create new resources.
* @param free The function to use to free resources created by `factory`.
*/
ResourcePool(Factory factory, Free free)
: factory_(std::move(factory)), free_(std::move(free)), inUse_(0) {}
/**
* @returns A unique pointer to a resource. The resource is null iff
* there are no avaiable resources and `factory()` returns null.
*/
UniquePtr get() {
std::lock_guard<std::mutex> lock(mutex_);
if (!resources_.empty()) {
UniquePtr resource{resources_.back(), Deleter{*this}};
resources_.pop_back();
++inUse_;
return resource;
}
UniquePtr resource{factory_(), Deleter{*this}};
++inUse_;
return resource;
}
~ResourcePool() noexcept {
assert(inUse_ == 0);
for (const auto resource : resources_) {
free_(resource);
}
}
class Deleter {
ResourcePool *pool_;
public:
explicit Deleter(ResourcePool &pool) : pool_(&pool) {}
void operator() (T *resource) {
std::lock_guard<std::mutex> lock(pool_->mutex_);
// Make sure we don't put null resources into the pool
if (resource) {
pool_->resources_.push_back(resource);
}
assert(pool_->inUse_ > 0);
--pool_->inUse_;
}
};
};
}

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/**
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#pragma once
#include <utility>
namespace pzstd {
/**
* Dismissable scope guard.
* `Function` must be callable and take no parameters.
* Unless `dissmiss()` is called, the callable is executed upon destruction of
* `ScopeGuard`.
*
* Example:
*
* auto guard = makeScopeGuard([&] { cleanup(); });
*/
template <typename Function>
class ScopeGuard {
Function function;
bool dismissed;
public:
explicit ScopeGuard(Function&& function)
: function(std::move(function)), dismissed(false) {}
void dismiss() {
dismissed = true;
}
~ScopeGuard() noexcept {
if (!dismissed) {
function();
}
}
};
/// Creates a scope guard from `function`.
template <typename Function>
ScopeGuard<Function> makeScopeGuard(Function&& function) {
return ScopeGuard<Function>(std::forward<Function>(function));
}
}

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/**
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#pragma once
#include "utils/WorkQueue.h"
#include <cstddef>
#include <functional>
#include <thread>
#include <vector>
namespace pzstd {
/// A simple thread pool that pulls tasks off its queue in FIFO order.
class ThreadPool {
std::vector<std::thread> threads_;
WorkQueue<std::function<void()>> tasks_;
public:
/// Constructs a thread pool with `numThreads` threads.
explicit ThreadPool(std::size_t numThreads) {
threads_.reserve(numThreads);
for (std::size_t i = 0; i < numThreads; ++i) {
threads_.emplace_back([this] {
std::function<void()> task;
while (tasks_.pop(task)) {
task();
}
});
}
}
/// Finishes all tasks currently in the queue.
~ThreadPool() {
tasks_.finish();
for (auto& thread : threads_) {
thread.join();
}
}
/**
* Adds `task` to the queue of tasks to execute. Since `task` is a
* `std::function<>`, it cannot be a move only type. So any lambda passed must
* not capture move only types (like `std::unique_ptr`).
*
* @param task The task to execute.
*/
void add(std::function<void()> task) {
tasks_.push(std::move(task));
}
};
}

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/**
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#pragma once
#include "utils/Buffer.h"
#include <atomic>
#include <cassert>
#include <cstddef>
#include <condition_variable>
#include <cstddef>
#include <functional>
#include <mutex>
#include <queue>
namespace pzstd {
/// Unbounded thread-safe work queue.
template <typename T>
class WorkQueue {
// Protects all member variable access
std::mutex mutex_;
std::condition_variable readerCv_;
std::condition_variable writerCv_;
std::condition_variable finishCv_;
std::queue<T> queue_;
bool done_;
std::size_t maxSize_;
// Must have lock to call this function
bool full() const {
if (maxSize_ == 0) {
return false;
}
return queue_.size() >= maxSize_;
}
public:
/**
* Constructs an empty work queue with an optional max size.
* If `maxSize == 0` the queue size is unbounded.
*
* @param maxSize The maximum allowed size of the work queue.
*/
WorkQueue(std::size_t maxSize = 0) : done_(false), maxSize_(maxSize) {}
/**
* Push an item onto the work queue. Notify a single thread that work is
* available. If `finish()` has been called, do nothing and return false.
* If `push()` returns false, then `item` has not been moved from.
*
* @param item Item to push onto the queue.
* @returns True upon success, false if `finish()` has been called. An
* item was pushed iff `push()` returns true.
*/
bool push(T&& item) {
{
std::unique_lock<std::mutex> lock(mutex_);
while (full() && !done_) {
writerCv_.wait(lock);
}
if (done_) {
return false;
}
queue_.push(std::move(item));
}
readerCv_.notify_one();
return true;
}
/**
* Attempts to pop an item off the work queue. It will block until data is
* available or `finish()` has been called.
*
* @param[out] item If `pop` returns `true`, it contains the popped item.
* If `pop` returns `false`, it is unmodified.
* @returns True upon success. False if the queue is empty and
* `finish()` has been called.
*/
bool pop(T& item) {
{
std::unique_lock<std::mutex> lock(mutex_);
while (queue_.empty() && !done_) {
readerCv_.wait(lock);
}
if (queue_.empty()) {
assert(done_);
return false;
}
item = std::move(queue_.front());
queue_.pop();
}
writerCv_.notify_one();
return true;
}
/**
* Sets the maximum queue size. If `maxSize == 0` then it is unbounded.
*
* @param maxSize The new maximum queue size.
*/
void setMaxSize(std::size_t maxSize) {
{
std::lock_guard<std::mutex> lock(mutex_);
maxSize_ = maxSize;
}
writerCv_.notify_all();
}
/**
* Promise that `push()` won't be called again, so once the queue is empty
* there will never any more work.
*/
void finish() {
{
std::lock_guard<std::mutex> lock(mutex_);
assert(!done_);
done_ = true;
}
readerCv_.notify_all();
writerCv_.notify_all();
finishCv_.notify_all();
}
/// Blocks until `finish()` has been called (but the queue may not be empty).
void waitUntilFinished() {
std::unique_lock<std::mutex> lock(mutex_);
while (!done_) {
finishCv_.wait(lock);
}
}
};
/// Work queue for `Buffer`s that knows the total number of bytes in the queue.
class BufferWorkQueue {
WorkQueue<Buffer> queue_;
std::atomic<std::size_t> size_;
public:
BufferWorkQueue(std::size_t maxSize = 0) : queue_(maxSize), size_(0) {}
void push(Buffer buffer) {
size_.fetch_add(buffer.size());
queue_.push(std::move(buffer));
}
bool pop(Buffer& buffer) {
bool result = queue_.pop(buffer);
if (result) {
size_.fetch_sub(buffer.size());
}
return result;
}
void setMaxSize(std::size_t maxSize) {
queue_.setMaxSize(maxSize);
}
void finish() {
queue_.finish();
}
/**
* Blocks until `finish()` has been called.
*
* @returns The total number of bytes of all the `Buffer`s currently in the
* queue.
*/
std::size_t size() {
queue_.waitUntilFinished();
return size_.load();
}
};
}

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cxx_test(
name='buffer_test',
srcs=['BufferTest.cpp'],
deps=['//contrib/pzstd/utils:buffer'],
)
cxx_test(
name='range_test',
srcs=['RangeTest.cpp'],
deps=['//contrib/pzstd/utils:range'],
)
cxx_test(
name='resource_pool_test',
srcs=['ResourcePoolTest.cpp'],
deps=['//contrib/pzstd/utils:resource_pool'],
)
cxx_test(
name='scope_guard_test',
srcs=['ScopeGuardTest.cpp'],
deps=['//contrib/pzstd/utils:scope_guard'],
)
cxx_test(
name='thread_pool_test',
srcs=['ThreadPoolTest.cpp'],
deps=['//contrib/pzstd/utils:thread_pool'],
)
cxx_test(
name='work_queue_test',
srcs=['RangeTest.cpp'],
deps=['//contrib/pzstd/utils:work_queue'],
)

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/**
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#include "utils/Buffer.h"
#include "utils/Range.h"
#include <gtest/gtest.h>
#include <memory>
using namespace pzstd;
namespace {
void deleter(const unsigned char* buf) {
delete[] buf;
}
}
TEST(Buffer, Constructors) {
Buffer empty;
EXPECT_TRUE(empty.empty());
EXPECT_EQ(0, empty.size());
Buffer sized(5);
EXPECT_FALSE(sized.empty());
EXPECT_EQ(5, sized.size());
Buffer moved(std::move(sized));
EXPECT_FALSE(sized.empty());
EXPECT_EQ(5, sized.size());
Buffer assigned;
assigned = std::move(moved);
EXPECT_FALSE(sized.empty());
EXPECT_EQ(5, sized.size());
}
TEST(Buffer, BufferManagement) {
std::shared_ptr<unsigned char> buf(new unsigned char[10], deleter);
{
Buffer acquired(buf, MutableByteRange(buf.get(), buf.get() + 10));
EXPECT_EQ(2, buf.use_count());
Buffer moved(std::move(acquired));
EXPECT_EQ(2, buf.use_count());
Buffer assigned;
assigned = std::move(moved);
EXPECT_EQ(2, buf.use_count());
Buffer split = assigned.splitAt(5);
EXPECT_EQ(3, buf.use_count());
split.advance(1);
assigned.subtract(1);
EXPECT_EQ(3, buf.use_count());
}
EXPECT_EQ(1, buf.use_count());
}
TEST(Buffer, Modifiers) {
Buffer buf(10);
{
unsigned char i = 0;
for (auto& byte : buf.range()) {
byte = i++;
}
}
auto prefix = buf.splitAt(2);
ASSERT_EQ(2, prefix.size());
EXPECT_EQ(0, *prefix.data());
ASSERT_EQ(8, buf.size());
EXPECT_EQ(2, *buf.data());
buf.advance(2);
EXPECT_EQ(4, *buf.data());
EXPECT_EQ(9, *(buf.range().end() - 1));
buf.subtract(2);
EXPECT_EQ(7, *(buf.range().end() - 1));
EXPECT_EQ(4, buf.size());
}

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/**
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#include "utils/Range.h"
#include <gtest/gtest.h>
#include <string>
using namespace pzstd;
// Range is directly copied from folly.
// Just some sanity tests to make sure everything seems to work.
TEST(Range, Constructors) {
StringPiece empty;
EXPECT_TRUE(empty.empty());
EXPECT_EQ(0, empty.size());
std::string str = "hello";
{
Range<std::string::const_iterator> piece(str.begin(), str.end());
EXPECT_EQ(5, piece.size());
EXPECT_EQ('h', *piece.data());
EXPECT_EQ('o', *(piece.end() - 1));
}
{
StringPiece piece(str.data(), str.size());
EXPECT_EQ(5, piece.size());
EXPECT_EQ('h', *piece.data());
EXPECT_EQ('o', *(piece.end() - 1));
}
{
StringPiece piece(str);
EXPECT_EQ(5, piece.size());
EXPECT_EQ('h', *piece.data());
EXPECT_EQ('o', *(piece.end() - 1));
}
{
StringPiece piece(str.c_str());
EXPECT_EQ(5, piece.size());
EXPECT_EQ('h', *piece.data());
EXPECT_EQ('o', *(piece.end() - 1));
}
}
TEST(Range, Modifiers) {
StringPiece range("hello world");
ASSERT_EQ(11, range.size());
{
auto hello = range.subpiece(0, 5);
EXPECT_EQ(5, hello.size());
EXPECT_EQ('h', *hello.data());
EXPECT_EQ('o', *(hello.end() - 1));
}
{
auto hello = range;
hello.subtract(6);
EXPECT_EQ(5, hello.size());
EXPECT_EQ('h', *hello.data());
EXPECT_EQ('o', *(hello.end() - 1));
}
{
auto world = range;
world.advance(6);
EXPECT_EQ(5, world.size());
EXPECT_EQ('w', *world.data());
EXPECT_EQ('d', *(world.end() - 1));
}
std::string expected = "hello world";
EXPECT_EQ(expected, std::string(range.begin(), range.end()));
EXPECT_EQ(expected, std::string(range.data(), range.size()));
}

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/**
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#include "utils/ResourcePool.h"
#include <gtest/gtest.h>
#include <atomic>
#include <thread>
using namespace pzstd;
TEST(ResourcePool, FullTest) {
unsigned numCreated = 0;
unsigned numDeleted = 0;
{
ResourcePool<int> pool(
[&numCreated] { ++numCreated; return new int{5}; },
[&numDeleted](int *x) { ++numDeleted; delete x; });
{
auto i = pool.get();
EXPECT_EQ(5, *i);
*i = 6;
}
{
auto i = pool.get();
EXPECT_EQ(6, *i);
auto j = pool.get();
EXPECT_EQ(5, *j);
*j = 7;
}
{
auto i = pool.get();
EXPECT_EQ(6, *i);
auto j = pool.get();
EXPECT_EQ(7, *j);
}
}
EXPECT_EQ(2, numCreated);
EXPECT_EQ(numCreated, numDeleted);
}
TEST(ResourcePool, ThreadSafe) {
std::atomic<unsigned> numCreated{0};
std::atomic<unsigned> numDeleted{0};
{
ResourcePool<int> pool(
[&numCreated] { ++numCreated; return new int{0}; },
[&numDeleted](int *x) { ++numDeleted; delete x; });
auto push = [&pool] {
for (int i = 0; i < 100; ++i) {
auto x = pool.get();
++*x;
}
};
std::thread t1{push};
std::thread t2{push};
t1.join();
t2.join();
auto x = pool.get();
auto y = pool.get();
EXPECT_EQ(200, *x + *y);
}
EXPECT_GE(2, numCreated);
EXPECT_EQ(numCreated, numDeleted);
}

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/**
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#include "utils/ScopeGuard.h"
#include <gtest/gtest.h>
using namespace pzstd;
TEST(ScopeGuard, Dismiss) {
{
auto guard = makeScopeGuard([&] { EXPECT_TRUE(false); });
guard.dismiss();
}
}
TEST(ScopeGuard, Executes) {
bool executed = false;
{
auto guard = makeScopeGuard([&] { executed = true; });
}
EXPECT_TRUE(executed);
}

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/**
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#include "utils/ThreadPool.h"
#include <gtest/gtest.h>
#include <atomic>
#include <thread>
#include <vector>
using namespace pzstd;
TEST(ThreadPool, Ordering) {
std::vector<int> results;
{
ThreadPool executor(1);
for (int i = 0; i < 10; ++i) {
executor.add([ &results, i ] { results.push_back(i); });
}
}
for (int i = 0; i < 10; ++i) {
EXPECT_EQ(i, results[i]);
}
}
TEST(ThreadPool, AllJobsFinished) {
std::atomic<unsigned> numFinished{0};
std::atomic<bool> start{false};
{
ThreadPool executor(5);
for (int i = 0; i < 10; ++i) {
executor.add([ &numFinished, &start ] {
while (!start.load()) {
// spin
}
++numFinished;
});
}
start.store(true);
}
EXPECT_EQ(10, numFinished.load());
}
TEST(ThreadPool, AddJobWhileJoining) {
std::atomic<bool> done{false};
{
ThreadPool executor(1);
executor.add([&executor, &done] {
while (!done.load()) {
std::this_thread::yield();
}
// Sleep for a second to be sure that we are joining
std::this_thread::sleep_for(std::chrono::seconds(1));
executor.add([] {
EXPECT_TRUE(false);
});
});
done.store(true);
}
}

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/**
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#include "utils/Buffer.h"
#include "utils/WorkQueue.h"
#include <gtest/gtest.h>
#include <memory>
#include <mutex>
#include <thread>
#include <vector>
using namespace pzstd;
namespace {
struct Popper {
WorkQueue<int>* queue;
int* results;
std::mutex* mutex;
void operator()() {
int result;
while (queue->pop(result)) {
std::lock_guard<std::mutex> lock(*mutex);
results[result] = result;
}
}
};
}
TEST(WorkQueue, SingleThreaded) {
WorkQueue<int> queue;
int result;
queue.push(5);
EXPECT_TRUE(queue.pop(result));
EXPECT_EQ(5, result);
queue.push(1);
queue.push(2);
EXPECT_TRUE(queue.pop(result));
EXPECT_EQ(1, result);
EXPECT_TRUE(queue.pop(result));
EXPECT_EQ(2, result);
queue.push(1);
queue.push(2);
queue.finish();
EXPECT_TRUE(queue.pop(result));
EXPECT_EQ(1, result);
EXPECT_TRUE(queue.pop(result));
EXPECT_EQ(2, result);
EXPECT_FALSE(queue.pop(result));
queue.waitUntilFinished();
}
TEST(WorkQueue, SPSC) {
WorkQueue<int> queue;
const int max = 100;
for (int i = 0; i < 10; ++i) {
queue.push(int{i});
}
std::thread thread([ &queue, max ] {
int result;
for (int i = 0;; ++i) {
if (!queue.pop(result)) {
EXPECT_EQ(i, max);
break;
}
EXPECT_EQ(i, result);
}
});
std::this_thread::yield();
for (int i = 10; i < max; ++i) {
queue.push(int{i});
}
queue.finish();
thread.join();
}
TEST(WorkQueue, SPMC) {
WorkQueue<int> queue;
std::vector<int> results(50, -1);
std::mutex mutex;
std::vector<std::thread> threads;
for (int i = 0; i < 5; ++i) {
threads.emplace_back(Popper{&queue, results.data(), &mutex});
}
for (int i = 0; i < 50; ++i) {
queue.push(int{i});
}
queue.finish();
for (auto& thread : threads) {
thread.join();
}
for (int i = 0; i < 50; ++i) {
EXPECT_EQ(i, results[i]);
}
}
TEST(WorkQueue, MPMC) {
WorkQueue<int> queue;
std::vector<int> results(100, -1);
std::mutex mutex;
std::vector<std::thread> popperThreads;
for (int i = 0; i < 4; ++i) {
popperThreads.emplace_back(Popper{&queue, results.data(), &mutex});
}
std::vector<std::thread> pusherThreads;
for (int i = 0; i < 2; ++i) {
auto min = i * 50;
auto max = (i + 1) * 50;
pusherThreads.emplace_back(
[ &queue, min, max ] {
for (int i = min; i < max; ++i) {
queue.push(int{i});
}
});
}
for (auto& thread : pusherThreads) {
thread.join();
}
queue.finish();
for (auto& thread : popperThreads) {
thread.join();
}
for (int i = 0; i < 100; ++i) {
EXPECT_EQ(i, results[i]);
}
}
TEST(WorkQueue, BoundedSizeWorks) {
WorkQueue<int> queue(1);
int result;
queue.push(5);
queue.pop(result);
queue.push(5);
queue.pop(result);
queue.push(5);
queue.finish();
queue.pop(result);
EXPECT_EQ(5, result);
}
TEST(WorkQueue, BoundedSizePushAfterFinish) {
WorkQueue<int> queue(1);
int result;
queue.push(5);
std::thread pusher([&queue] {
queue.push(6);
});
// Dirtily try and make sure that pusher has run.
std::this_thread::sleep_for(std::chrono::seconds(1));
queue.finish();
EXPECT_TRUE(queue.pop(result));
EXPECT_EQ(5, result);
EXPECT_FALSE(queue.pop(result));
pusher.join();
}
TEST(WorkQueue, SetMaxSize) {
WorkQueue<int> queue(2);
int result;
queue.push(5);
queue.push(6);
queue.setMaxSize(1);
std::thread pusher([&queue] {
queue.push(7);
});
// Dirtily try and make sure that pusher has run.
std::this_thread::sleep_for(std::chrono::seconds(1));
queue.finish();
EXPECT_TRUE(queue.pop(result));
EXPECT_EQ(5, result);
EXPECT_TRUE(queue.pop(result));
EXPECT_EQ(6, result);
EXPECT_FALSE(queue.pop(result));
pusher.join();
}
TEST(WorkQueue, BoundedSizeMPMC) {
WorkQueue<int> queue(10);
std::vector<int> results(200, -1);
std::mutex mutex;
std::vector<std::thread> popperThreads;
for (int i = 0; i < 4; ++i) {
popperThreads.emplace_back(Popper{&queue, results.data(), &mutex});
}
std::vector<std::thread> pusherThreads;
for (int i = 0; i < 2; ++i) {
auto min = i * 100;
auto max = (i + 1) * 100;
pusherThreads.emplace_back(
[ &queue, min, max ] {
for (int i = min; i < max; ++i) {
queue.push(int{i});
}
});
}
for (auto& thread : pusherThreads) {
thread.join();
}
queue.finish();
for (auto& thread : popperThreads) {
thread.join();
}
for (int i = 0; i < 200; ++i) {
EXPECT_EQ(i, results[i]);
}
}
TEST(WorkQueue, FailedPush) {
WorkQueue<std::unique_ptr<int>> queue;
std::unique_ptr<int> x(new int{5});
EXPECT_TRUE(queue.push(std::move(x)));
EXPECT_EQ(nullptr, x);
queue.finish();
x.reset(new int{6});
EXPECT_FALSE(queue.push(std::move(x)));
EXPECT_NE(nullptr, x);
EXPECT_EQ(6, *x);
}
TEST(BufferWorkQueue, SizeCalculatedCorrectly) {
{
BufferWorkQueue queue;
queue.finish();
EXPECT_EQ(0, queue.size());
}
{
BufferWorkQueue queue;
queue.push(Buffer(10));
queue.finish();
EXPECT_EQ(10, queue.size());
}
{
BufferWorkQueue queue;
queue.push(Buffer(10));
queue.push(Buffer(5));
queue.finish();
EXPECT_EQ(15, queue.size());
}
{
BufferWorkQueue queue;
queue.push(Buffer(10));
queue.push(Buffer(5));
queue.finish();
Buffer buffer;
queue.pop(buffer);
EXPECT_EQ(5, queue.size());
}
}

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Zstandard Documentation
=======================
This directory contains material defining the Zstandard format,
as well as for help using the `zstd` library.
__`zstd_compression_format.md`__ : This document defines the Zstandard compression format.
Compliant decoders must adhere to this document,
and compliant encoders must generate data that follows it.
__`educational_decoder`__ : This directory contains an implementation of a Zstandard decoder,
compliant with the Zstandard compression format.
It can be used, for example, to better understand the format,
or as the basis for a separate implementation a Zstandard decoder/encoder.
__`zstd_manual.html`__ : Documentation on the functions found in `zstd.h`.
See [http://zstd.net/zstd_manual.html](http://zstd.net/zstd_manual.html) for
the manual released with the latest official `zstd` release.

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