LZ4 removal for make and meson, relates to #19849 ##build
This commit is contained in:
Mewt R
pancake
parent
45935eb231
commit
949a84bc05
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@ -104,6 +104,11 @@ LIBXXHASH=@LIBXXHASH@
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USE_SYSLZ4=@USE_SYSLZ4@
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USE_SMALLZ4=@USE_SMALLZ4@
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ifeq ($(USE_SYSLZ4),1)
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LZ4_LDFLAGS=@LZ4_LDFLAGS@
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LZ4_CFLAGS=@LZ4_CFLAGS@
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endif
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ifeq ($(HAVE_LIB_SSL),1)
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SSL_CFLAGS=@SSL_CFLAGS@
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SSL_LDFLAGS=@SSL_LDFLAGS@
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@ -1,5 +1,5 @@
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#!/bin/sh
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# This script was automatically generated by ACR v2.1.1
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# This script was automatically generated by ACR v2.1.2
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# @author: pancake <nopcode.org>
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# @url: http://www.nopcode.org
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# @repo: git clone https://github.com/radare/acr
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@ -34,7 +34,6 @@ USE_CS5=0
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USE_CS4=0
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WITH_CAPSTONE=0
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WITH_SYSLZ4=0
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WITH_SMALLZ4=0
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USE_ZIP=0
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USE_XXHASH=0
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WITH_GPL=1
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@ -188,8 +187,7 @@ System types:
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--target=TARGET configure for building compilers for TARGET [HOST]
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EOF2
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printf "
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Optional Features:
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printf "\nOptional Features:
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--disable-debugger disable native debugger features
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--with-sysmagic force to use system's magic
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--disable-threads disable use of thread apis
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@ -206,7 +204,6 @@ Optional Features:
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--with-capstone4 build v4 branch of capstone
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--with-syscapstone force to use system-wide capstone
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--with-syslz4 force to use system's liblz4
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--with-smallz4 build with smallz4 use it as the lz4 decompressor
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--with-syszip force to use system's libzip and zlib
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--with-sysxxhash force to use system's xxhash
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--without-gpl do not build GPL code (grub, cxx, ... )
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@ -218,20 +215,16 @@ Optional Features:
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--with-ostype Choose OS ( android windows wsl mingw32 bsd solaris gnulinux darwin haiku ) (USEROSTYPE=auto)
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--with-libversion specify different libversion (LIBVERSION=xxx)
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--without-jemalloc build without jemalloc
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--with-checks-level value between 0 and 3 to enable different level of assert (see R_CHECKS_LEVEL) (R_CHECKS_LEVEL=2)
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"
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printf "
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Some influential environment variables:
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--with-checks-level value between 0 and 3 to enable different level of assert (see R_CHECKS_LEVEL) (R_CHECKS_LEVEL=2)\n"
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printf "\nSome influential environment variables:
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CC C compiler command
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CFLAGS C compiler flags
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LDFLAGS linker flags, e.g. -L<lib dir> if you have libraries in a
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nonstandard directory <lib dir>
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CPPFLAGS C/C++ preprocessor flags, e.g. -I<include dir> if you have
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headers in a nonstandard directory <include dir>
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CPP C preprocessor
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"
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printf "
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Report bugs to: pancake <pancake@nopcode.org>"
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CPP C preprocessor\n"
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printf "\nReport bugs to: pancake <pancake@nopcode.org>"
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echo ""
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exit 0
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}
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@ -258,7 +251,7 @@ if [ "$QUIET" = 1 ]; then
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echo "5.8.9"
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exit 0
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fi
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echo "radare2-5.8.9 configuration script done with acr v2.1.1.
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echo "radare2-5.8.9 configuration script done with acr v2.1.2.
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The 'Free Software Foundation' message is only for autodetection.
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Originally written by pancake <nopcode.org>."
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exit 0
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@ -295,7 +288,7 @@ echo "LANGS: c"
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echo "REQUIRED: libdl"
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echo "OPTIONAL: libmagic libz libzip libxxhash libssl liblibuv>=1.0.0"
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echo "PKGCONFIG: capstone liblz4 openssl libuv"
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echo "FLAGS: --disable-debugger --with-sysmagic --disable-threads --disable-loadlibs --enable-threadsafety --without-dylink --without-fork --without-ptrace-wrap --without-gperf --without-capstone --with-libr --with-static-themes --with-capstone5 --with-capstone4 --with-syscapstone --with-syslz4 --with-smallz4 --with-syszip --with-sysxxhash --without-gpl --with-ssl --with-ssl-crypto --with-libuv --with-rpath --with-compiler=gcc --with-ostype=auto --with-libversion=xxx --without-jemalloc --with-checks-level=2"
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echo "FLAGS: --disable-debugger --with-sysmagic --disable-threads --disable-loadlibs --enable-threadsafety --without-dylink --without-fork --without-ptrace-wrap --without-gperf --without-capstone --with-libr --with-static-themes --with-capstone5 --with-capstone4 --with-syscapstone --with-syslz4 --with-syszip --with-sysxxhash --without-gpl --with-ssl --with-ssl-crypto --with-libuv --with-rpath --with-compiler=gcc --with-ostype=auto --with-libversion=xxx --without-jemalloc --with-checks-level=2"
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exit 0
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;;
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--cache-file)
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@ -363,7 +356,6 @@ echo "FLAGS: --disable-debugger --with-sysmagic --disable-threads --disabl
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"--with-capstone4") USE_CS4="1"; ;;
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"--with-syscapstone") WITH_CAPSTONE="1"; ;;
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"--with-syslz4") WITH_SYSLZ4="1"; ;;
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"--with-smallz4") WITH_SMALLZ4="1"; ;;
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"--with-syszip") USE_ZIP="1"; ;;
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"--with-sysxxhash") USE_XXHASH="1"; ;;
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"--without-gpl") WITH_GPL="0"; ;;
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@ -393,7 +385,7 @@ parse_options "$1"
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shift
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done
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ENVWORDS="MANDIR DESCRIPTION INFODIR LIBDIR INCLUDEDIR LOCALSTATEDIR ETCDIR SYSCONFDIR DATADIR DOCDIR LIBEXECDIR SBINDIR BINDIR EPREFIX PREFIX SPREFIX TARGET HOST BUILD INSTALL INSTALL_LIB INSTALL_MAN INSTALL_PROGRAM INSTALL_PROGRAM_STRIP INSTALL_DIR INSTALL_SCRIPT INSTALL_DATA HOST_OS HOST_CPU BUILD_OS BUILD_CPU TARGET_OS TARGET_CPU VERSION VERSION_MAJOR VERSION_MINOR VERSION_PATCH VERSION_NUMBER PKGCFG_LIBDIR PKGCFG_INCDIR PKGNAME VPATH CONTACT CONTACT_NAME CONTACT_MAIL CC CFLAGS CPPFLAGS LDFLAGS HAVE_LANG_C DEBUGGER HAVE_LIB_DL DL_LIBS PKGCONFIG R2_BUILDSYSTEM HAVE_PATCH PATCH HAVE_AR AR HAVE_GIT GIT HAVE_GPERF GPERF HAVE_LIB_MAGIC HAVE_LINUX_CAN_H USE_MAGIC USE_LIB_MAGIC LIBMAGIC WANT_THREADS LOADLIBS R_CRITICAL_ENABLED WANT_DYLINK HAVE_FORK WANT_PTRACE_WRAP WANT_GPERF WANT_CAPSTONE WITH_LIBR WITH_STATIC_THEMES USE_CS5 USE_CS4 WITH_CAPSTONE CAPSTONE_CFLAGS CAPSTONE_LDFLAGS HAVE_PKGCFG_CAPSTONE USE_CAPSTONE LZ4_CFLAGS LZ4_LDFLAGS HAVE_PKGCFG_LIBLZ4 WITH_SYSLZ4 USE_SYSLZ4 WITH_SMALLZ4 USE_SMALLZ4 HAVE_LIB_Z HAVE_LIB_ZIP USE_ZIP USE_LIB_ZIP LIBZIP HAVE_LIB_XXHASH USE_XXHASH USE_LIB_XXHASH LIBXXHASH WITH_GPL HAVE_DECL_ADDR_NO_RANDOMIZE HAVE_DECL___GLIBC__ HAVE_ARC4RANDOM_UNIFORM HAVE_EXPLICIT_BZERO HAVE_EXPLICIT_MEMSET HAVE_CLOCK_NANOSLEEP HAVE_SIGACTION HAVE_CLOCK_GETTIME CLOCK_LDFLAGS SUPPORT_GNU99 HAVE_LIB_GMP HAVE_LIB_SSL SSL_CFLAGS SSL_LDFLAGS HAVE_PKGCFG_OPENSSL HAVE_OPENSSL WANT_SSL WANT_SSL_CRYPTO WANT_LIBUV HAVE_LIBUV_VERSION_1_0_0 LIBUV_CFLAGS LIBUV_LDFLAGS HAVE_PKGCFG_LIBUV HAVE_LIBUV USE_RPATH USERCC USEROSTYPE LIBVERSION HAVE_JEMALLOC HAVE_PTRACE USE_PTRACE_WRAP R_CHECKS_LEVEL"
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ENVWORDS="MANDIR DESCRIPTION INFODIR LIBDIR INCLUDEDIR LOCALSTATEDIR ETCDIR SYSCONFDIR DATADIR DOCDIR LIBEXECDIR SBINDIR BINDIR EPREFIX PREFIX SPREFIX TARGET HOST BUILD INSTALL INSTALL_LIB INSTALL_MAN INSTALL_PROGRAM INSTALL_PROGRAM_STRIP INSTALL_DIR INSTALL_SCRIPT INSTALL_DATA HOST_OS HOST_CPU BUILD_OS BUILD_CPU TARGET_OS TARGET_CPU VERSION VERSION_MAJOR VERSION_MINOR VERSION_PATCH VERSION_NUMBER PKGCFG_LIBDIR PKGCFG_INCDIR PKGNAME VPATH CONTACT CONTACT_NAME CONTACT_MAIL CC CFLAGS CPPFLAGS LDFLAGS HAVE_LANG_C DEBUGGER HAVE_LIB_DL DL_LIBS PKGCONFIG R2_BUILDSYSTEM HAVE_PATCH PATCH HAVE_AR AR HAVE_GIT GIT HAVE_GPERF GPERF HAVE_LIB_MAGIC HAVE_LINUX_CAN_H USE_MAGIC USE_LIB_MAGIC LIBMAGIC WANT_THREADS LOADLIBS R_CRITICAL_ENABLED WANT_DYLINK HAVE_FORK WANT_PTRACE_WRAP WANT_GPERF WANT_CAPSTONE WITH_LIBR WITH_STATIC_THEMES USE_CS5 USE_CS4 WITH_CAPSTONE CAPSTONE_CFLAGS CAPSTONE_LDFLAGS HAVE_PKGCFG_CAPSTONE USE_CAPSTONE LZ4_CFLAGS LZ4_LDFLAGS HAVE_PKGCFG_LIBLZ4 WITH_SYSLZ4 USE_SYSLZ4 HAVE_LIB_Z HAVE_LIB_ZIP USE_ZIP USE_LIB_ZIP LIBZIP HAVE_LIB_XXHASH USE_XXHASH USE_LIB_XXHASH LIBXXHASH WITH_GPL HAVE_DECL_ADDR_NO_RANDOMIZE HAVE_DECL___GLIBC__ HAVE_ARC4RANDOM_UNIFORM HAVE_EXPLICIT_BZERO HAVE_EXPLICIT_MEMSET HAVE_CLOCK_NANOSLEEP HAVE_SIGACTION HAVE_CLOCK_GETTIME CLOCK_LDFLAGS SUPPORT_GNU99 HAVE_LIB_GMP HAVE_LIB_SSL SSL_CFLAGS SSL_LDFLAGS HAVE_PKGCFG_OPENSSL HAVE_OPENSSL WANT_SSL WANT_SSL_CRYPTO WANT_LIBUV HAVE_LIBUV_VERSION_1_0_0 LIBUV_CFLAGS LIBUV_LDFLAGS HAVE_PKGCFG_LIBUV HAVE_LIBUV USE_RPATH USERCC USEROSTYPE LIBVERSION HAVE_JEMALLOC HAVE_PTRACE USE_PTRACE_WRAP R_CHECKS_LEVEL"
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create_environ
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@ -661,15 +653,11 @@ tmp=`${PKGCONFIG} --libs liblz4 2>/dev/null`
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if [ $? = 0 ]; then
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echo yes; HAVE_PKGCFG_LIBLZ4=1;
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LZ4_LDFLAGS=$tmp; fi; fi
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if [ 11 = "$WITH_SYSLZ4$LZ4_CFLAGS" ]; then
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if [ 11 = "$WITH_SYSLZ4$HAVE_PKGCFG_LIBLZ4" ]; then
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USE_SYSLZ4="1"
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else
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USE_SYSLZ4="0"; fi
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if [ "$WITH_SMALLZ4" = "1" ]; then
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USE_SMALLZ4="1"
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else
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USE_SMALLZ4="0"; fi
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check_library HAVE_LIB_Z z 0
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check_library HAVE_LIB_ZIP zip 0
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if [ 11 = "$HAVE_LIB_Z$USE_ZIP" ]; then
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@ -66,21 +66,13 @@ IFAND WITH_CAPSTONE HAVE_PKGCFG_CAPSTONE {
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(( LZ4 ))
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PKGCFG LZ4_CFLAGS LZ4_LDFLAGS liblz4
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ARG_WITH WITH_SYSLZ4 syslz4 force to use system's liblz4 ;
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IFAND WITH_SYSLZ4 LZ4_CFLAGS {
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IFAND WITH_SYSLZ4 HAVE_PKGCFG_LIBLZ4 {
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USE_SYSLZ4 = 1 ;
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}{
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USE_SYSLZ4 = 0 ;
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}
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(( SMALLZ4 ))
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ARG_WITH WITH_SMALLZ4 smallz4 build with smallz4 use it as the lz4 decompressor ;
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IF WITH_SMALLZ4 {
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USE_SMALLZ4 = 1 ;
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}{
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USE_SMALLZ4 = 0 ;
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}
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(( ZIP ))
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CHKLIB z
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CHKLIB zip
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@ -153,6 +153,9 @@ r_bin_sources += r_bin_d_sources
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r_bin_inc = [platform_inc, include_directories('mangling', 'format')]
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if not get_option('use_sys_lz4')
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library_cflags += ['-DUSE_SMALLZ4']
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endif
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r_bin = library('r_bin', r_bin_sources,
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include_directories: r_bin_inc,
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c_args: ['-DR_API_BIN_ONLY=1'] + library_cflags,
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@ -27,21 +27,18 @@ OBJS+=d/iso8859_1.o
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endif
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ifeq ($(USE_SYSLZ4),1)
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CFLAGS+=@LZ4_CFLAGS@
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CFLAGS+=${LZ4_CFLAGS}
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PCLIBS+=@LZ4_LDFLAGS@
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LDFLAGS+=${LZ4_LDFLAGS}
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else
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OBJS+=$(SHLR)/lz4/lz4.o
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CFLAGS+=-DUSE_SMALLZ4
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OBJS+=$(SHLR)/smallz4/smallz4cat.o
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endif
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OBJS+=big_gmp.o
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OBJS+=big_ssl.o
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OBJS+=big.o
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ifeq ($(USE_SMALLZ4),1)
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CFLAGS+=-DUSE_SMALLZ4
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OBJS+=$(SHLR)/smallz4/smallz4cat.o
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endif
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CWD=$(shell pwd)
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LDFLAGS+=${BN_LIBS}
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@ -103,8 +103,11 @@ if get_option('sdb_cgen')
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r_util_sources += r_util_d_sources
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endif
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r_util_deps = [ldl, mth, spp_dep, pth, utl, sdb_dep, lz4_dep, zlib_dep, platform_deps]
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if not get_option('use_sys_lz4')
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library_cflags += ['-DUSE_SMALLZ4']
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endif
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r_util_deps = [ldl, mth, spp_dep, pth, utl, sdb_dep, lz4_dep, zlib_dep, platform_deps]
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if host_machine.system().startswith('freebsd') or host_machine.system().startswith('netbsd') or host_machine.system().startswith('haiku')
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# backtrace_symbols_fd requires -lexecinfo
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@ -118,10 +121,6 @@ else
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r_util_sources += ['big.c']
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endif
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if get_option('use_smallz4')
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library_cflags += ['-DUSE_SMALLZ4']
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r_util_deps += [smallz4_dep]
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endif
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r_util = library('r_util', r_util_sources,
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include_directories: platform_inc,
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@ -2,7 +2,6 @@
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#include <r_util.h>
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#include <zlib.h>
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#include "../../../shlr/lz4/lz4.h"
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// set a maximum output buffer of 50MB
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#define MAXOUT 50000000
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@ -35,6 +34,8 @@ unsigned char smallz4GetByte(void *userPtr) {
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struct UserPtr* user = (struct UserPtr*)userPtr;
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return *(user->input + (user->inputPos++));
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}
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#else
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#include <lz4.h>
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#endif
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static const char *gzerr(int n) {
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@ -601,7 +601,6 @@ if get_option('local') and get_option('default_library') == 'shared'
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rpath_lib = '$ORIGIN'
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endif
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subdir('shlr/lz4')
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subdir('shlr/smallz4')
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subdir('libr/util')
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subdir('libr/socket')
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@ -33,7 +33,6 @@ option('use_sys_magic', type: 'boolean', value: false)
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option('use_sys_zip', type: 'boolean', value: false)
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option('use_sys_zlib', type: 'boolean', value: false)
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option('use_sys_lz4', type: 'boolean', value: false)
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option('use_smallz4', type: 'boolean', value: false)
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option('use_sys_xxhash', type: 'boolean', value: false)
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option('use_ssl', type: 'boolean', value: false)
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option('use_ssl_crypto', type: 'boolean', value: false)
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@ -348,7 +348,6 @@ SHLRS+=capstone/libcapstone.a
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SHLRS+=gdb/lib/libgdbr.a
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SHLRS+=grub/libgrubfs.a
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SHLRS+=java/libr_java.a
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SHLRS+=lz4/liblz4.a
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SHLRS+=qnx/lib/libqnxr.a
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SHLRS+=winkd/libr_winkd.a
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SHLRS+=zip/librz.a
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@ -1,2 +0,0 @@
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# make install artefact
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liblz4.pc
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@ -1,24 +0,0 @@
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LZ4 Library
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Copyright (c) 2011-2016, Yann Collet
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All rights reserved.
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|
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Redistribution and use in source and binary forms, with or without modification,
|
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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.
|
||||
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@ -1,193 +0,0 @@
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include ../../libr/config.mk
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CFLAGS+=-I../../libr/include
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# ################################################################
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# LZ4 library - Makefile
|
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# Copyright (C) Yann Collet 2011-2016
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# All rights reserved.
|
||||
#
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# This Makefile is validated for Linux, macOS, *BSD, Hurd, Solaris, MSYS2 targets
|
||||
#
|
||||
# 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 :
|
||||
# - LZ4 source repository : https://github.com/Cyan4973/lz4
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||||
# - LZ4 forum froup : https://groups.google.com/forum/#!forum/lz4c
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# ################################################################
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# Version numbers
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LIBVER_MAJOR_SCRIPT:=`sed -n '/define LZ4_VERSION_MAJOR/s/.*[[:blank:]]\([0-9][0-9]*\).*/\1/p' < ./lz4.h`
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LIBVER_MINOR_SCRIPT:=`sed -n '/define LZ4_VERSION_MINOR/s/.*[[:blank:]]\([0-9][0-9]*\).*/\1/p' < ./lz4.h`
|
||||
LIBVER_PATCH_SCRIPT:=`sed -n '/define LZ4_VERSION_RELEASE/s/.*[[:blank:]]\([0-9][0-9]*\).*/\1/p' < ./lz4.h`
|
||||
LIBVER_SCRIPT:= $(LIBVER_MAJOR_SCRIPT).$(LIBVER_MINOR_SCRIPT).$(LIBVER_PATCH_SCRIPT)
|
||||
LIBVER_MAJOR := $(shell echo $(LIBVER_MAJOR_SCRIPT))
|
||||
LIBVER_MINOR := $(shell echo $(LIBVER_MINOR_SCRIPT))
|
||||
LIBVER_PATCH := $(shell echo $(LIBVER_PATCH_SCRIPT))
|
||||
LIBVER := $(shell echo $(LIBVER_SCRIPT))
|
||||
|
||||
BUILD_STATIC:=yes
|
||||
|
||||
CPPFLAGS+= -DXXH_NAMESPACE=LZ4_
|
||||
CFLAGS ?= -O3 -fPIC
|
||||
DEBUGFLAGS:= -Wall -Wextra -Wcast-qual -Wcast-align -Wshadow \
|
||||
-Wswitch-enum -Wdeclaration-after-statement -Wstrict-prototypes \
|
||||
-Wundef -Wpointer-arith -Wstrict-aliasing=1
|
||||
CFLAGS += $(DEBUGFLAGS) $(MOREFLAGS)
|
||||
FLAGS = $(CPPFLAGS) $(CFLAGS) $(LDFLAGS)
|
||||
|
||||
SRCFILES := $(sort $(wildcard *.c))
|
||||
|
||||
|
||||
# OS X linker doesn't support -soname, and use different extension
|
||||
# see : https://developer.apple.com/library/mac/documentation/DeveloperTools/Conceptual/DynamicLibraries/100-Articles/DynamicLibraryDesignGuidelines.html
|
||||
ifeq ($(shell uname), Darwin)
|
||||
SHARED_EXT = dylib
|
||||
SHARED_EXT_MAJOR = $(LIBVER_MAJOR).$(SHARED_EXT)
|
||||
SHARED_EXT_VER = $(LIBVER).$(SHARED_EXT)
|
||||
SONAME_FLAGS = -install_name $(LIBDIR)/liblz4.$(SHARED_EXT_MAJOR) -compatibility_version $(LIBVER_MAJOR) -current_version $(LIBVER)
|
||||
else
|
||||
SONAME_FLAGS = -Wl,-soname=liblz4.$(SHARED_EXT).$(LIBVER_MAJOR)
|
||||
SHARED_EXT = so
|
||||
SHARED_EXT_MAJOR = $(SHARED_EXT).$(LIBVER_MAJOR)
|
||||
SHARED_EXT_VER = $(SHARED_EXT).$(LIBVER)
|
||||
endif
|
||||
|
||||
LIBLZ4 = liblz4.$(SHARED_EXT_VER)
|
||||
|
||||
.PHONY: default
|
||||
default: lib-release
|
||||
|
||||
lib-release: DEBUGFLAGS :=
|
||||
lib-release: lib
|
||||
|
||||
EXT_AR?=a
|
||||
|
||||
lib: liblz4.$(EXT_AR)
|
||||
# liblz4
|
||||
|
||||
all: lib
|
||||
|
||||
all32: CFLAGS+=-m32
|
||||
all32: all
|
||||
|
||||
sync:
|
||||
rm -f lz4.c
|
||||
wget https://raw.githubusercontent.com/lz4/lz4/dev/lib/lz4.c
|
||||
rm -f lz4.h
|
||||
wget https://raw.githubusercontent.com/lz4/lz4/dev/lib/lz4.h
|
||||
|
||||
liblz4.$(EXT_AR): $(SRCFILES)
|
||||
ifeq ($(BUILD_STATIC),yes) # can be disabled on command line
|
||||
@echo compiling static library
|
||||
$(CC) $(CPPFLAGS) $(CFLAGS) -c $^
|
||||
$(AR) rcs $@ *.o
|
||||
endif
|
||||
|
||||
$(LIBLZ4): $(SRCFILES)
|
||||
@echo compiling dynamic library $(LIBVER)
|
||||
ifneq (,$(filter Windows%,$(OS)))
|
||||
@$(CC) $(FLAGS) -DLZ4_DLL_EXPORT=1 -shared $^ -o dll\$@.dll
|
||||
dlltool -D dll\liblz4.dll -d dll\liblz4.def -l liblz4.lib
|
||||
else
|
||||
@$(CC) $(FLAGS) -shared $^ -fPIC -fvisibility=hidden $(SONAME_FLAGS) -o $@
|
||||
@echo creating versioned links
|
||||
@ln -sf $@ liblz4.$(SHARED_EXT_MAJOR)
|
||||
@ln -sf $@ liblz4.$(SHARED_EXT)
|
||||
endif
|
||||
|
||||
liblz4: $(LIBLZ4)
|
||||
|
||||
clean:
|
||||
@$(RM) core *.o liblz4.pc dll/liblz4.dll dll/liblz4.lib
|
||||
@$(RM) *.$(EXT_AR) *.$(SHARED_EXT) *.$(SHARED_EXT_MAJOR) *.$(SHARED_EXT_VER)
|
||||
@echo Cleaning library completed
|
||||
|
||||
|
||||
#-----------------------------------------------------------------------------
|
||||
# make install is validated only for Linux, OSX, BSD, Hurd and Solaris targets
|
||||
#-----------------------------------------------------------------------------
|
||||
ifneq (,$(filter $(shell uname),Linux Darwin GNU/kFreeBSD GNU OpenBSD FreeBSD NetBSD DragonFly SunOS))
|
||||
|
||||
DESTDIR ?=
|
||||
# directory variables : GNU conventions prefer lowercase
|
||||
# see https://www.gnu.org/prep/standards/html_node/Makefile-Conventions.html
|
||||
# support both lower and uppercase (BSD), use uppercase in script
|
||||
prefix ?= /usr/local
|
||||
PREFIX ?= $(prefix)
|
||||
exec_prefix ?= $(PREFIX)
|
||||
libdir ?= $(exec_prefix)/lib
|
||||
LIBDIR ?= $(libdir)
|
||||
includedir ?= $(PREFIX)/include
|
||||
INCLUDEDIR ?= $(includedir)
|
||||
|
||||
ifneq (,$(filter $(shell uname),OpenBSD FreeBSD NetBSD DragonFly))
|
||||
PKGCONFIGDIR ?= $(PREFIX)/libdata/pkgconfig
|
||||
else
|
||||
PKGCONFIGDIR ?= $(LIBDIR)/pkgconfig
|
||||
endif
|
||||
|
||||
ifneq (,$(filter $(shell uname),SunOS))
|
||||
INSTALL ?= ginstall
|
||||
else
|
||||
INSTALL ?= install
|
||||
endif
|
||||
|
||||
INSTALL_PROGRAM ?= $(INSTALL)
|
||||
INSTALL_DATA ?= $(INSTALL) -m 644
|
||||
|
||||
liblz4.pc: liblz4.pc.in Makefile
|
||||
@echo creating pkgconfig
|
||||
@sed -e 's|@PREFIX@|$(PREFIX)|' \
|
||||
-e 's|@LIBDIR@|$(LIBDIR)|' \
|
||||
-e 's|@INCLUDEDIR@|$(INCLUDEDIR)|' \
|
||||
-e 's|@VERSION@|$(LIBVER)|' \
|
||||
$< >$@
|
||||
|
||||
install: lib liblz4.pc
|
||||
@$(INSTALL) -d -m 755 $(DESTDIR)$(PKGCONFIGDIR)/ $(DESTDIR)$(INCLUDEDIR)/ $(DESTDIR)$(LIBDIR)/
|
||||
@$(INSTALL_DATA) liblz4.pc $(DESTDIR)$(PKGCONFIGDIR)/
|
||||
@echo Installing libraries
|
||||
ifeq ($(BUILD_STATIC),yes)
|
||||
@$(INSTALL_DATA) liblz4.$(EXT_AR) $(DESTDIR)$(LIBDIR)/liblz4.$(EXT_AR)
|
||||
@$(INSTALL_DATA) lz4frame_static.h $(DESTDIR)$(INCLUDEDIR)/lz4frame_static.h
|
||||
endif
|
||||
@$(INSTALL_PROGRAM) liblz4.$(SHARED_EXT_VER) $(DESTDIR)$(LIBDIR)
|
||||
@ln -sf liblz4.$(SHARED_EXT_VER) $(DESTDIR)$(LIBDIR)/liblz4.$(SHARED_EXT_MAJOR)
|
||||
@ln -sf liblz4.$(SHARED_EXT_VER) $(DESTDIR)$(LIBDIR)/liblz4.$(SHARED_EXT)
|
||||
@echo Installing headers in $(INCLUDEDIR)
|
||||
@$(INSTALL_DATA) lz4.h $(DESTDIR)$(INCLUDEDIR)/lz4.h
|
||||
@$(INSTALL_DATA) lz4hc.h $(DESTDIR)$(INCLUDEDIR)/lz4hc.h
|
||||
@$(INSTALL_DATA) lz4frame.h $(DESTDIR)$(INCLUDEDIR)/lz4frame.h
|
||||
@echo lz4 libraries installed
|
||||
|
||||
uninstall:
|
||||
@$(RM) $(DESTDIR)$(LIBDIR)/pkgconfig/liblz4.pc
|
||||
@$(RM) $(DESTDIR)$(LIBDIR)/liblz4.$(SHARED_EXT)
|
||||
@$(RM) $(DESTDIR)$(LIBDIR)/liblz4.$(SHARED_EXT_MAJOR)
|
||||
@$(RM) $(DESTDIR)$(LIBDIR)/liblz4.$(SHARED_EXT_VER)
|
||||
@$(RM) $(DESTDIR)$(LIBDIR)/liblz4.$(EXT_AR)
|
||||
@$(RM) $(DESTDIR)$(INCLUDEDIR)/lz4.h
|
||||
@$(RM) $(DESTDIR)$(INCLUDEDIR)/lz4hc.h
|
||||
@$(RM) $(DESTDIR)$(INCLUDEDIR)/lz4frame.h
|
||||
@echo lz4 libraries successfully uninstalled
|
||||
|
||||
endif
|
||||
|
|
@ -1,129 +0,0 @@
|
|||
LZ4 - Library Files
|
||||
================================
|
||||
|
||||
The `/lib` directory contains many files, but depending on project's objectives,
|
||||
not all of them are necessary.
|
||||
|
||||
#### Minimal LZ4 build
|
||||
|
||||
The minimum required is **`lz4.c`** and **`lz4.h`**,
|
||||
which provides the fast compression and decompression algorithms.
|
||||
They generate and decode data using the [LZ4 block format].
|
||||
|
||||
|
||||
#### High Compression variant
|
||||
|
||||
For more compression ratio at the cost of compression speed,
|
||||
the High Compression variant called **lz4hc** is available.
|
||||
Add files **`lz4hc.c`** and **`lz4hc.h`**.
|
||||
This variant also compresses data using the [LZ4 block format],
|
||||
and depends on regular `lib/lz4.*` source files.
|
||||
|
||||
|
||||
#### Frame support, for interoperability
|
||||
|
||||
In order to produce compressed data compatible with `lz4` command line utility,
|
||||
it's necessary to use the [official interoperable frame format].
|
||||
This format is generated and decoded automatically by the **lz4frame** library.
|
||||
Its public API is described in `lib/lz4frame.h`.
|
||||
In order to work properly, lz4frame needs all other modules present in `/lib`,
|
||||
including, lz4 and lz4hc, and also **xxhash**.
|
||||
So it's necessary to include all `*.c` and `*.h` files present in `/lib`.
|
||||
|
||||
|
||||
#### Advanced / Experimental API
|
||||
|
||||
Definitions which are not guaranteed to remain stable in future versions,
|
||||
are protected behind macros, such as `LZ4_STATIC_LINKING_ONLY`.
|
||||
As the name strongly implies, these definitions should only be invoked
|
||||
in the context of static linking ***only***.
|
||||
Otherwise, dependent application may fail on API or ABI break in the future.
|
||||
The associated symbols are also not exposed by the dynamic library by default.
|
||||
Should they be nonetheless needed, it's possible to force their publication
|
||||
by using build macros `LZ4_PUBLISH_STATIC_FUNCTIONS`
|
||||
and `LZ4F_PUBLISH_STATIC_FUNCTIONS`.
|
||||
|
||||
|
||||
#### Build macros
|
||||
|
||||
The following build macro can be selected to adjust source code behavior at compilation time :
|
||||
|
||||
- `LZ4_FAST_DEC_LOOP` : this triggers a speed optimized decompression loop, more powerful on modern cpus.
|
||||
This loop works great on x86, x64 and aarch64 cpus, and is automatically enabled for them.
|
||||
It's also possible to enable or disable it manually, by passing `LZ4_FAST_DEC_LOOP=1` or `0` to the preprocessor.
|
||||
For example, with `gcc` : `-DLZ4_FAST_DEC_LOOP=1`,
|
||||
and with `make` : `CPPFLAGS+=-DLZ4_FAST_DEC_LOOP=1 make lz4`.
|
||||
|
||||
- `LZ4_DISTANCE_MAX` : control the maximum offset that the compressor will allow.
|
||||
Set to 65535 by default, which is the maximum value supported by lz4 format.
|
||||
Reducing maximum distance will reduce opportunities for LZ4 to find matches,
|
||||
hence will produce a worse compression ratio.
|
||||
However, a smaller max distance can allow compatibility with specific decoders using limited memory budget.
|
||||
This build macro only influences the compressed output of the compressor.
|
||||
|
||||
- `LZ4_DISABLE_DEPRECATE_WARNINGS` : invoking a deprecated function will make the compiler generate a warning.
|
||||
This is meant to invite users to update their source code.
|
||||
Should this be a problem, it's generally possible to make the compiler ignore these warnings,
|
||||
for example with `-Wno-deprecated-declarations` on `gcc`,
|
||||
or `_CRT_SECURE_NO_WARNINGS` for Visual Studio.
|
||||
Another project-specific method is to define `LZ4_DISABLE_DEPRECATE_WARNINGS`
|
||||
before including the LZ4 header files.
|
||||
|
||||
- `LZ4_FORCE_SW_BITCOUNT` : by default, the compression algorithm tries to determine lengths
|
||||
by using bitcount instructions, generally implemented as fast single instructions in many cpus.
|
||||
In case the target cpus doesn't support it, or compiler intrinsic doesn't work, or feature bad performance,
|
||||
it's possible to use an optimized software path instead.
|
||||
This is achieved by setting this build macros .
|
||||
In most cases, it's not expected to be necessary,
|
||||
but it can be legitimately considered for less common platforms.
|
||||
|
||||
|
||||
#### Amalgamation
|
||||
|
||||
lz4 source code can be amalgamated into a single file.
|
||||
One can combine all source code into `lz4_all.c` by using following command:
|
||||
```
|
||||
cat lz4.c lz4hc.c lz4frame.c > lz4_all.c
|
||||
```
|
||||
(`cat` file order is important) then compile `lz4_all.c`.
|
||||
All `*.h` files present in `/lib` remain necessary to compile `lz4_all.c`.
|
||||
|
||||
|
||||
#### Windows : using MinGW+MSYS to create DLL
|
||||
|
||||
DLL can be created using MinGW+MSYS with the `make liblz4` command.
|
||||
This command creates `dll\liblz4.dll` and the import library `dll\liblz4.lib`.
|
||||
To override the `dlltool` command when cross-compiling on Linux, just set the `DLLTOOL` variable. Example of cross compilation on Linux with mingw-w64 64 bits:
|
||||
```
|
||||
make BUILD_STATIC=no CC=x86_64-w64-mingw32-gcc DLLTOOL=x86_64-w64-mingw32-dlltool OS=Windows_NT
|
||||
```
|
||||
The import library is only required with Visual C++.
|
||||
The header files `lz4.h`, `lz4hc.h`, `lz4frame.h` and the dynamic library
|
||||
`dll\liblz4.dll` are required to compile a project using gcc/MinGW.
|
||||
The dynamic library has to be added to linking options.
|
||||
It means that if a project that uses LZ4 consists of a single `test-dll.c`
|
||||
file it should be linked with `dll\liblz4.dll`. For example:
|
||||
```
|
||||
$(CC) $(CFLAGS) -Iinclude/ test-dll.c -o test-dll dll\liblz4.dll
|
||||
```
|
||||
The compiled executable will require LZ4 DLL which is available at `dll\liblz4.dll`.
|
||||
|
||||
|
||||
#### Miscellaneous
|
||||
|
||||
Other files present in the directory are not source code. They are :
|
||||
|
||||
- `LICENSE` : contains the BSD license text
|
||||
- `Makefile` : `make` script to compile and install lz4 library (static and dynamic)
|
||||
- `liblz4.pc.in` : for `pkg-config` (used in `make install`)
|
||||
- `README.md` : this file
|
||||
|
||||
[official interoperable frame format]: ../doc/lz4_Frame_format.md
|
||||
[LZ4 block format]: ../doc/lz4_Block_format.md
|
||||
|
||||
|
||||
#### License
|
||||
|
||||
All source material within __lib__ directory are BSD 2-Clause licensed.
|
||||
See [LICENSE](LICENSE) for details.
|
||||
The license is also reminded at the top of each source file.
|
||||
2526
shlr/lz4/lz4.c
2526
shlr/lz4/lz4.c
File diff suppressed because it is too large
Load Diff
785
shlr/lz4/lz4.h
785
shlr/lz4/lz4.h
|
|
@ -1,785 +0,0 @@
|
|||
/*
|
||||
* LZ4 - Fast LZ compression algorithm
|
||||
* Header File
|
||||
* Copyright (C) 2011-2020, Yann Collet.
|
||||
|
||||
BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
|
||||
|
||||
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
|
||||
OWNER 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 :
|
||||
- LZ4 homepage : http://www.lz4.org
|
||||
- LZ4 source repository : https://github.com/lz4/lz4
|
||||
*/
|
||||
#if defined (__cplusplus)
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
#ifndef LZ4_H_2983827168210
|
||||
#define LZ4_H_2983827168210
|
||||
|
||||
/* --- Dependency --- */
|
||||
#include <stddef.h> /* size_t */
|
||||
|
||||
|
||||
/**
|
||||
Introduction
|
||||
|
||||
LZ4 is lossless compression algorithm, providing compression speed >500 MB/s per core,
|
||||
scalable with multi-cores CPU. It features an extremely fast decoder, with speed in
|
||||
multiple GB/s per core, typically reaching RAM speed limits on multi-core systems.
|
||||
|
||||
The LZ4 compression library provides in-memory compression and decompression functions.
|
||||
It gives full buffer control to user.
|
||||
Compression can be done in:
|
||||
- a single step (described as Simple Functions)
|
||||
- a single step, reusing a context (described in Advanced Functions)
|
||||
- unbounded multiple steps (described as Streaming compression)
|
||||
|
||||
lz4.h generates and decodes LZ4-compressed blocks (doc/lz4_Block_format.md).
|
||||
Decompressing such a compressed block requires additional metadata.
|
||||
Exact metadata depends on exact decompression function.
|
||||
For the typical case of LZ4_decompress_safe(),
|
||||
metadata includes block's compressed size, and maximum bound of decompressed size.
|
||||
Each application is free to encode and pass such metadata in whichever way it wants.
|
||||
|
||||
lz4.h only handle blocks, it can not generate Frames.
|
||||
|
||||
Blocks are different from Frames (doc/lz4_Frame_format.md).
|
||||
Frames bundle both blocks and metadata in a specified manner.
|
||||
Embedding metadata is required for compressed data to be self-contained and portable.
|
||||
Frame format is delivered through a companion API, declared in lz4frame.h.
|
||||
The `lz4` CLI can only manage frames.
|
||||
*/
|
||||
|
||||
/*^***************************************************************
|
||||
* Export parameters
|
||||
*****************************************************************/
|
||||
/*
|
||||
* LZ4_DLL_EXPORT :
|
||||
* Enable exporting of functions when building a Windows DLL
|
||||
* LZ4LIB_VISIBILITY :
|
||||
* Control library symbols visibility.
|
||||
*/
|
||||
#ifndef LZ4LIB_VISIBILITY
|
||||
# if defined(__GNUC__) && (__GNUC__ >= 4)
|
||||
# define LZ4LIB_VISIBILITY __attribute__ ((visibility ("default")))
|
||||
# else
|
||||
# define LZ4LIB_VISIBILITY
|
||||
# endif
|
||||
#endif
|
||||
#if defined(LZ4_DLL_EXPORT) && (LZ4_DLL_EXPORT==1)
|
||||
# define LZ4LIB_API __declspec(dllexport) LZ4LIB_VISIBILITY
|
||||
#elif defined(LZ4_DLL_IMPORT) && (LZ4_DLL_IMPORT==1)
|
||||
# define LZ4LIB_API __declspec(dllimport) LZ4LIB_VISIBILITY /* It isn't required but allows to generate better code, saving a function pointer load from the IAT and an indirect jump.*/
|
||||
#else
|
||||
# define LZ4LIB_API LZ4LIB_VISIBILITY
|
||||
#endif
|
||||
|
||||
/*------ Version ------*/
|
||||
#define LZ4_VERSION_MAJOR 1 /* for breaking interface changes */
|
||||
#define LZ4_VERSION_MINOR 9 /* for new (non-breaking) interface capabilities */
|
||||
#define LZ4_VERSION_RELEASE 3 /* for tweaks, bug-fixes, or development */
|
||||
|
||||
#define LZ4_VERSION_NUMBER (LZ4_VERSION_MAJOR *100*100 + LZ4_VERSION_MINOR *100 + LZ4_VERSION_RELEASE)
|
||||
|
||||
#define LZ4_LIB_VERSION LZ4_VERSION_MAJOR.LZ4_VERSION_MINOR.LZ4_VERSION_RELEASE
|
||||
#define LZ4_QUOTE(str) #str
|
||||
#define LZ4_EXPAND_AND_QUOTE(str) LZ4_QUOTE(str)
|
||||
#define LZ4_VERSION_STRING LZ4_EXPAND_AND_QUOTE(LZ4_LIB_VERSION)
|
||||
|
||||
LZ4LIB_API int LZ4_versionNumber (void); /**< library version number; useful to check dll version */
|
||||
LZ4LIB_API const char* LZ4_versionString (void); /**< library version string; useful to check dll version */
|
||||
|
||||
|
||||
/*-************************************
|
||||
* Tuning parameter
|
||||
**************************************/
|
||||
#define LZ4_MEMORY_USAGE_MIN 10
|
||||
#define LZ4_MEMORY_USAGE_DEFAULT 14
|
||||
#define LZ4_MEMORY_USAGE_MAX 20
|
||||
|
||||
/*!
|
||||
* LZ4_MEMORY_USAGE :
|
||||
* Memory usage formula : N->2^N Bytes (examples : 10 -> 1KB; 12 -> 4KB ; 16 -> 64KB; 20 -> 1MB; )
|
||||
* Increasing memory usage improves compression ratio, at the cost of speed.
|
||||
* Reduced memory usage may improve speed at the cost of ratio, thanks to better cache locality.
|
||||
* Default value is 14, for 16KB, which nicely fits into Intel x86 L1 cache
|
||||
*/
|
||||
#ifndef LZ4_MEMORY_USAGE
|
||||
# define LZ4_MEMORY_USAGE LZ4_MEMORY_USAGE_DEFAULT
|
||||
#endif
|
||||
|
||||
#if (LZ4_MEMORY_USAGE < LZ4_MEMORY_USAGE_MIN)
|
||||
# error "LZ4_MEMORY_USAGE is too small !"
|
||||
#endif
|
||||
|
||||
#if (LZ4_MEMORY_USAGE > LZ4_MEMORY_USAGE_MAX)
|
||||
# error "LZ4_MEMORY_USAGE is too large !"
|
||||
#endif
|
||||
|
||||
/*-************************************
|
||||
* Simple Functions
|
||||
**************************************/
|
||||
/*! LZ4_compress_default() :
|
||||
* Compresses 'srcSize' bytes from buffer 'src'
|
||||
* into already allocated 'dst' buffer of size 'dstCapacity'.
|
||||
* Compression is guaranteed to succeed if 'dstCapacity' >= LZ4_compressBound(srcSize).
|
||||
* It also runs faster, so it's a recommended setting.
|
||||
* If the function cannot compress 'src' into a more limited 'dst' budget,
|
||||
* compression stops *immediately*, and the function result is zero.
|
||||
* In which case, 'dst' content is undefined (invalid).
|
||||
* srcSize : max supported value is LZ4_MAX_INPUT_SIZE.
|
||||
* dstCapacity : size of buffer 'dst' (which must be already allocated)
|
||||
* @return : the number of bytes written into buffer 'dst' (necessarily <= dstCapacity)
|
||||
* or 0 if compression fails
|
||||
* Note : This function is protected against buffer overflow scenarios (never writes outside 'dst' buffer, nor read outside 'source' buffer).
|
||||
*/
|
||||
LZ4LIB_API int LZ4_compress_default(const char* src, char* dst, int srcSize, int dstCapacity);
|
||||
|
||||
/*! LZ4_decompress_safe() :
|
||||
* compressedSize : is the exact complete size of the compressed block.
|
||||
* dstCapacity : is the size of destination buffer (which must be already allocated), presumed an upper bound of decompressed size.
|
||||
* @return : the number of bytes decompressed into destination buffer (necessarily <= dstCapacity)
|
||||
* If destination buffer is not large enough, decoding will stop and output an error code (negative value).
|
||||
* If the source stream is detected malformed, the function will stop decoding and return a negative result.
|
||||
* Note 1 : This function is protected against malicious data packets :
|
||||
* it will never writes outside 'dst' buffer, nor read outside 'source' buffer,
|
||||
* even if the compressed block is maliciously modified to order the decoder to do these actions.
|
||||
* In such case, the decoder stops immediately, and considers the compressed block malformed.
|
||||
* Note 2 : compressedSize and dstCapacity must be provided to the function, the compressed block does not contain them.
|
||||
* The implementation is free to send / store / derive this information in whichever way is most beneficial.
|
||||
* If there is a need for a different format which bundles together both compressed data and its metadata, consider looking at lz4frame.h instead.
|
||||
*/
|
||||
LZ4LIB_API int LZ4_decompress_safe (const char* src, char* dst, int compressedSize, int dstCapacity);
|
||||
|
||||
|
||||
/*-************************************
|
||||
* Advanced Functions
|
||||
**************************************/
|
||||
#define LZ4_MAX_INPUT_SIZE 0x7E000000 /* 2 113 929 216 bytes */
|
||||
#define LZ4_COMPRESSBOUND(isize) ((unsigned)(isize) > (unsigned)LZ4_MAX_INPUT_SIZE ? 0 : (isize) + ((isize)/255) + 16)
|
||||
|
||||
/*! LZ4_compressBound() :
|
||||
Provides the maximum size that LZ4 compression may output in a "worst case" scenario (input data not compressible)
|
||||
This function is primarily useful for memory allocation purposes (destination buffer size).
|
||||
Macro LZ4_COMPRESSBOUND() is also provided for compilation-time evaluation (stack memory allocation for example).
|
||||
Note that LZ4_compress_default() compresses faster when dstCapacity is >= LZ4_compressBound(srcSize)
|
||||
inputSize : max supported value is LZ4_MAX_INPUT_SIZE
|
||||
return : maximum output size in a "worst case" scenario
|
||||
or 0, if input size is incorrect (too large or negative)
|
||||
*/
|
||||
LZ4LIB_API int LZ4_compressBound(int inputSize);
|
||||
|
||||
/*! LZ4_compress_fast() :
|
||||
Same as LZ4_compress_default(), but allows selection of "acceleration" factor.
|
||||
The larger the acceleration value, the faster the algorithm, but also the lesser the compression.
|
||||
It's a trade-off. It can be fine tuned, with each successive value providing roughly +~3% to speed.
|
||||
An acceleration value of "1" is the same as regular LZ4_compress_default()
|
||||
Values <= 0 will be replaced by LZ4_ACCELERATION_DEFAULT (currently == 1, see lz4.c).
|
||||
Values > LZ4_ACCELERATION_MAX will be replaced by LZ4_ACCELERATION_MAX (currently == 65537, see lz4.c).
|
||||
*/
|
||||
LZ4LIB_API int LZ4_compress_fast (const char* src, char* dst, int srcSize, int dstCapacity, int acceleration);
|
||||
|
||||
|
||||
/*! LZ4_compress_fast_extState() :
|
||||
* Same as LZ4_compress_fast(), using an externally allocated memory space for its state.
|
||||
* Use LZ4_sizeofState() to know how much memory must be allocated,
|
||||
* and allocate it on 8-bytes boundaries (using `malloc()` typically).
|
||||
* Then, provide this buffer as `void* state` to compression function.
|
||||
*/
|
||||
LZ4LIB_API int LZ4_sizeofState(void);
|
||||
LZ4LIB_API int LZ4_compress_fast_extState (void* state, const char* src, char* dst, int srcSize, int dstCapacity, int acceleration);
|
||||
|
||||
|
||||
/*! LZ4_compress_destSize() :
|
||||
* Reverse the logic : compresses as much data as possible from 'src' buffer
|
||||
* into already allocated buffer 'dst', of size >= 'targetDestSize'.
|
||||
* This function either compresses the entire 'src' content into 'dst' if it's large enough,
|
||||
* or fill 'dst' buffer completely with as much data as possible from 'src'.
|
||||
* note: acceleration parameter is fixed to "default".
|
||||
*
|
||||
* *srcSizePtr : will be modified to indicate how many bytes where read from 'src' to fill 'dst'.
|
||||
* New value is necessarily <= input value.
|
||||
* @return : Nb bytes written into 'dst' (necessarily <= targetDestSize)
|
||||
* or 0 if compression fails.
|
||||
*
|
||||
* Note : from v1.8.2 to v1.9.1, this function had a bug (fixed un v1.9.2+):
|
||||
* the produced compressed content could, in specific circumstances,
|
||||
* require to be decompressed into a destination buffer larger
|
||||
* by at least 1 byte than the content to decompress.
|
||||
* If an application uses `LZ4_compress_destSize()`,
|
||||
* it's highly recommended to update liblz4 to v1.9.2 or better.
|
||||
* If this can't be done or ensured,
|
||||
* the receiving decompression function should provide
|
||||
* a dstCapacity which is > decompressedSize, by at least 1 byte.
|
||||
* See https://github.com/lz4/lz4/issues/859 for details
|
||||
*/
|
||||
LZ4LIB_API int LZ4_compress_destSize (const char* src, char* dst, int* srcSizePtr, int targetDstSize);
|
||||
|
||||
|
||||
/*! LZ4_decompress_safe_partial() :
|
||||
* Decompress an LZ4 compressed block, of size 'srcSize' at position 'src',
|
||||
* into destination buffer 'dst' of size 'dstCapacity'.
|
||||
* Up to 'targetOutputSize' bytes will be decoded.
|
||||
* The function stops decoding on reaching this objective.
|
||||
* This can be useful to boost performance
|
||||
* whenever only the beginning of a block is required.
|
||||
*
|
||||
* @return : the number of bytes decoded in `dst` (necessarily <= targetOutputSize)
|
||||
* If source stream is detected malformed, function returns a negative result.
|
||||
*
|
||||
* Note 1 : @return can be < targetOutputSize, if compressed block contains less data.
|
||||
*
|
||||
* Note 2 : targetOutputSize must be <= dstCapacity
|
||||
*
|
||||
* Note 3 : this function effectively stops decoding on reaching targetOutputSize,
|
||||
* so dstCapacity is kind of redundant.
|
||||
* This is because in older versions of this function,
|
||||
* decoding operation would still write complete sequences.
|
||||
* Therefore, there was no guarantee that it would stop writing at exactly targetOutputSize,
|
||||
* it could write more bytes, though only up to dstCapacity.
|
||||
* Some "margin" used to be required for this operation to work properly.
|
||||
* Thankfully, this is no longer necessary.
|
||||
* The function nonetheless keeps the same signature, in an effort to preserve API compatibility.
|
||||
*
|
||||
* Note 4 : If srcSize is the exact size of the block,
|
||||
* then targetOutputSize can be any value,
|
||||
* including larger than the block's decompressed size.
|
||||
* The function will, at most, generate block's decompressed size.
|
||||
*
|
||||
* Note 5 : If srcSize is _larger_ than block's compressed size,
|
||||
* then targetOutputSize **MUST** be <= block's decompressed size.
|
||||
* Otherwise, *silent corruption will occur*.
|
||||
*/
|
||||
LZ4LIB_API int LZ4_decompress_safe_partial (const char* src, char* dst, int srcSize, int targetOutputSize, int dstCapacity);
|
||||
|
||||
|
||||
/*-*********************************************
|
||||
* Streaming Compression Functions
|
||||
***********************************************/
|
||||
typedef union LZ4_stream_u LZ4_stream_t; /* incomplete type (defined later) */
|
||||
|
||||
LZ4LIB_API LZ4_stream_t* LZ4_createStream(void);
|
||||
LZ4LIB_API int LZ4_freeStream (LZ4_stream_t* streamPtr);
|
||||
|
||||
/*! LZ4_resetStream_fast() : v1.9.0+
|
||||
* Use this to prepare an LZ4_stream_t for a new chain of dependent blocks
|
||||
* (e.g., LZ4_compress_fast_continue()).
|
||||
*
|
||||
* An LZ4_stream_t must be initialized once before usage.
|
||||
* This is automatically done when created by LZ4_createStream().
|
||||
* However, should the LZ4_stream_t be simply declared on stack (for example),
|
||||
* it's necessary to initialize it first, using LZ4_initStream().
|
||||
*
|
||||
* After init, start any new stream with LZ4_resetStream_fast().
|
||||
* A same LZ4_stream_t can be re-used multiple times consecutively
|
||||
* and compress multiple streams,
|
||||
* provided that it starts each new stream with LZ4_resetStream_fast().
|
||||
*
|
||||
* LZ4_resetStream_fast() is much faster than LZ4_initStream(),
|
||||
* but is not compatible with memory regions containing garbage data.
|
||||
*
|
||||
* Note: it's only useful to call LZ4_resetStream_fast()
|
||||
* in the context of streaming compression.
|
||||
* The *extState* functions perform their own resets.
|
||||
* Invoking LZ4_resetStream_fast() before is redundant, and even counterproductive.
|
||||
*/
|
||||
LZ4LIB_API void LZ4_resetStream_fast (LZ4_stream_t* streamPtr);
|
||||
|
||||
/*! LZ4_loadDict() :
|
||||
* Use this function to reference a static dictionary into LZ4_stream_t.
|
||||
* The dictionary must remain available during compression.
|
||||
* LZ4_loadDict() triggers a reset, so any previous data will be forgotten.
|
||||
* The same dictionary will have to be loaded on decompression side for successful decoding.
|
||||
* Dictionary are useful for better compression of small data (KB range).
|
||||
* While LZ4 accept any input as dictionary,
|
||||
* results are generally better when using Zstandard's Dictionary Builder.
|
||||
* Loading a size of 0 is allowed, and is the same as reset.
|
||||
* @return : loaded dictionary size, in bytes (necessarily <= 64 KB)
|
||||
*/
|
||||
LZ4LIB_API int LZ4_loadDict (LZ4_stream_t* streamPtr, const char* dictionary, int dictSize);
|
||||
|
||||
/*! LZ4_compress_fast_continue() :
|
||||
* Compress 'src' content using data from previously compressed blocks, for better compression ratio.
|
||||
* 'dst' buffer must be already allocated.
|
||||
* If dstCapacity >= LZ4_compressBound(srcSize), compression is guaranteed to succeed, and runs faster.
|
||||
*
|
||||
* @return : size of compressed block
|
||||
* or 0 if there is an error (typically, cannot fit into 'dst').
|
||||
*
|
||||
* Note 1 : Each invocation to LZ4_compress_fast_continue() generates a new block.
|
||||
* Each block has precise boundaries.
|
||||
* Each block must be decompressed separately, calling LZ4_decompress_*() with relevant metadata.
|
||||
* It's not possible to append blocks together and expect a single invocation of LZ4_decompress_*() to decompress them together.
|
||||
*
|
||||
* Note 2 : The previous 64KB of source data is __assumed__ to remain present, unmodified, at same address in memory !
|
||||
*
|
||||
* Note 3 : When input is structured as a double-buffer, each buffer can have any size, including < 64 KB.
|
||||
* Make sure that buffers are separated, by at least one byte.
|
||||
* This construction ensures that each block only depends on previous block.
|
||||
*
|
||||
* Note 4 : If input buffer is a ring-buffer, it can have any size, including < 64 KB.
|
||||
*
|
||||
* Note 5 : After an error, the stream status is undefined (invalid), it can only be reset or freed.
|
||||
*/
|
||||
LZ4LIB_API int LZ4_compress_fast_continue (LZ4_stream_t* streamPtr, const char* src, char* dst, int srcSize, int dstCapacity, int acceleration);
|
||||
|
||||
/*! LZ4_saveDict() :
|
||||
* If last 64KB data cannot be guaranteed to remain available at its current memory location,
|
||||
* save it into a safer place (char* safeBuffer).
|
||||
* This is schematically equivalent to a memcpy() followed by LZ4_loadDict(),
|
||||
* but is much faster, because LZ4_saveDict() doesn't need to rebuild tables.
|
||||
* @return : saved dictionary size in bytes (necessarily <= maxDictSize), or 0 if error.
|
||||
*/
|
||||
LZ4LIB_API int LZ4_saveDict (LZ4_stream_t* streamPtr, char* safeBuffer, int maxDictSize);
|
||||
|
||||
|
||||
/*-**********************************************
|
||||
* Streaming Decompression Functions
|
||||
* Bufferless synchronous API
|
||||
************************************************/
|
||||
typedef union LZ4_streamDecode_u LZ4_streamDecode_t; /* tracking context */
|
||||
|
||||
/*! LZ4_createStreamDecode() and LZ4_freeStreamDecode() :
|
||||
* creation / destruction of streaming decompression tracking context.
|
||||
* A tracking context can be re-used multiple times.
|
||||
*/
|
||||
LZ4LIB_API LZ4_streamDecode_t* LZ4_createStreamDecode(void);
|
||||
LZ4LIB_API int LZ4_freeStreamDecode (LZ4_streamDecode_t* LZ4_stream);
|
||||
|
||||
/*! LZ4_setStreamDecode() :
|
||||
* An LZ4_streamDecode_t context can be allocated once and re-used multiple times.
|
||||
* Use this function to start decompression of a new stream of blocks.
|
||||
* A dictionary can optionally be set. Use NULL or size 0 for a reset order.
|
||||
* Dictionary is presumed stable : it must remain accessible and unmodified during next decompression.
|
||||
* @return : 1 if OK, 0 if error
|
||||
*/
|
||||
LZ4LIB_API int LZ4_setStreamDecode (LZ4_streamDecode_t* LZ4_streamDecode, const char* dictionary, int dictSize);
|
||||
|
||||
/*! LZ4_decoderRingBufferSize() : v1.8.2+
|
||||
* Note : in a ring buffer scenario (optional),
|
||||
* blocks are presumed decompressed next to each other
|
||||
* up to the moment there is not enough remaining space for next block (remainingSize < maxBlockSize),
|
||||
* at which stage it resumes from beginning of ring buffer.
|
||||
* When setting such a ring buffer for streaming decompression,
|
||||
* provides the minimum size of this ring buffer
|
||||
* to be compatible with any source respecting maxBlockSize condition.
|
||||
* @return : minimum ring buffer size,
|
||||
* or 0 if there is an error (invalid maxBlockSize).
|
||||
*/
|
||||
LZ4LIB_API int LZ4_decoderRingBufferSize(int maxBlockSize);
|
||||
#define LZ4_DECODER_RING_BUFFER_SIZE(maxBlockSize) (65536 + 14 + (maxBlockSize)) /* for static allocation; maxBlockSize presumed valid */
|
||||
|
||||
/*! LZ4_decompress_*_continue() :
|
||||
* These decoding functions allow decompression of consecutive blocks in "streaming" mode.
|
||||
* A block is an unsplittable entity, it must be presented entirely to a decompression function.
|
||||
* Decompression functions only accepts one block at a time.
|
||||
* The last 64KB of previously decoded data *must* remain available and unmodified at the memory position where they were decoded.
|
||||
* If less than 64KB of data has been decoded, all the data must be present.
|
||||
*
|
||||
* Special : if decompression side sets a ring buffer, it must respect one of the following conditions :
|
||||
* - Decompression buffer size is _at least_ LZ4_decoderRingBufferSize(maxBlockSize).
|
||||
* maxBlockSize is the maximum size of any single block. It can have any value > 16 bytes.
|
||||
* In which case, encoding and decoding buffers do not need to be synchronized.
|
||||
* Actually, data can be produced by any source compliant with LZ4 format specification, and respecting maxBlockSize.
|
||||
* - Synchronized mode :
|
||||
* Decompression buffer size is _exactly_ the same as compression buffer size,
|
||||
* and follows exactly same update rule (block boundaries at same positions),
|
||||
* and decoding function is provided with exact decompressed size of each block (exception for last block of the stream),
|
||||
* _then_ decoding & encoding ring buffer can have any size, including small ones ( < 64 KB).
|
||||
* - Decompression buffer is larger than encoding buffer, by a minimum of maxBlockSize more bytes.
|
||||
* In which case, encoding and decoding buffers do not need to be synchronized,
|
||||
* and encoding ring buffer can have any size, including small ones ( < 64 KB).
|
||||
*
|
||||
* Whenever these conditions are not possible,
|
||||
* save the last 64KB of decoded data into a safe buffer where it can't be modified during decompression,
|
||||
* then indicate where this data is saved using LZ4_setStreamDecode(), before decompressing next block.
|
||||
*/
|
||||
LZ4LIB_API int LZ4_decompress_safe_continue (LZ4_streamDecode_t* LZ4_streamDecode, const char* src, char* dst, int srcSize, int dstCapacity);
|
||||
|
||||
|
||||
/*! LZ4_decompress_*_usingDict() :
|
||||
* These decoding functions work the same as
|
||||
* a combination of LZ4_setStreamDecode() followed by LZ4_decompress_*_continue()
|
||||
* They are stand-alone, and don't need an LZ4_streamDecode_t structure.
|
||||
* Dictionary is presumed stable : it must remain accessible and unmodified during decompression.
|
||||
* Performance tip : Decompression speed can be substantially increased
|
||||
* when dst == dictStart + dictSize.
|
||||
*/
|
||||
LZ4LIB_API int LZ4_decompress_safe_usingDict (const char* src, char* dst, int srcSize, int dstCapcity, const char* dictStart, int dictSize);
|
||||
|
||||
#endif /* LZ4_H_2983827168210 */
|
||||
|
||||
|
||||
/*^*************************************
|
||||
* !!!!!! STATIC LINKING ONLY !!!!!!
|
||||
***************************************/
|
||||
|
||||
/*-****************************************************************************
|
||||
* Experimental section
|
||||
*
|
||||
* Symbols declared in this section must be considered unstable. Their
|
||||
* signatures or semantics may change, or they may be removed altogether in the
|
||||
* future. They are therefore only safe to depend on when the caller is
|
||||
* statically linked against the library.
|
||||
*
|
||||
* To protect against unsafe usage, not only are the declarations guarded,
|
||||
* the definitions are hidden by default
|
||||
* when building LZ4 as a shared/dynamic library.
|
||||
*
|
||||
* In order to access these declarations,
|
||||
* define LZ4_STATIC_LINKING_ONLY in your application
|
||||
* before including LZ4's headers.
|
||||
*
|
||||
* In order to make their implementations accessible dynamically, you must
|
||||
* define LZ4_PUBLISH_STATIC_FUNCTIONS when building the LZ4 library.
|
||||
******************************************************************************/
|
||||
|
||||
#ifdef LZ4_STATIC_LINKING_ONLY
|
||||
|
||||
#ifndef LZ4_STATIC_3504398509
|
||||
#define LZ4_STATIC_3504398509
|
||||
|
||||
#ifdef LZ4_PUBLISH_STATIC_FUNCTIONS
|
||||
#define LZ4LIB_STATIC_API LZ4LIB_API
|
||||
#else
|
||||
#define LZ4LIB_STATIC_API
|
||||
#endif
|
||||
|
||||
|
||||
/*! LZ4_compress_fast_extState_fastReset() :
|
||||
* A variant of LZ4_compress_fast_extState().
|
||||
*
|
||||
* Using this variant avoids an expensive initialization step.
|
||||
* It is only safe to call if the state buffer is known to be correctly initialized already
|
||||
* (see above comment on LZ4_resetStream_fast() for a definition of "correctly initialized").
|
||||
* From a high level, the difference is that
|
||||
* this function initializes the provided state with a call to something like LZ4_resetStream_fast()
|
||||
* while LZ4_compress_fast_extState() starts with a call to LZ4_resetStream().
|
||||
*/
|
||||
LZ4LIB_STATIC_API int LZ4_compress_fast_extState_fastReset (void* state, const char* src, char* dst, int srcSize, int dstCapacity, int acceleration);
|
||||
|
||||
/*! LZ4_attach_dictionary() :
|
||||
* This is an experimental API that allows
|
||||
* efficient use of a static dictionary many times.
|
||||
*
|
||||
* Rather than re-loading the dictionary buffer into a working context before
|
||||
* each compression, or copying a pre-loaded dictionary's LZ4_stream_t into a
|
||||
* working LZ4_stream_t, this function introduces a no-copy setup mechanism,
|
||||
* in which the working stream references the dictionary stream in-place.
|
||||
*
|
||||
* Several assumptions are made about the state of the dictionary stream.
|
||||
* Currently, only streams which have been prepared by LZ4_loadDict() should
|
||||
* be expected to work.
|
||||
*
|
||||
* Alternatively, the provided dictionaryStream may be NULL,
|
||||
* in which case any existing dictionary stream is unset.
|
||||
*
|
||||
* If a dictionary is provided, it replaces any pre-existing stream history.
|
||||
* The dictionary contents are the only history that can be referenced and
|
||||
* logically immediately precede the data compressed in the first subsequent
|
||||
* compression call.
|
||||
*
|
||||
* The dictionary will only remain attached to the working stream through the
|
||||
* first compression call, at the end of which it is cleared. The dictionary
|
||||
* stream (and source buffer) must remain in-place / accessible / unchanged
|
||||
* through the completion of the first compression call on the stream.
|
||||
*/
|
||||
LZ4LIB_STATIC_API void LZ4_attach_dictionary(LZ4_stream_t* workingStream, const LZ4_stream_t* dictionaryStream);
|
||||
|
||||
|
||||
/*! In-place compression and decompression
|
||||
*
|
||||
* It's possible to have input and output sharing the same buffer,
|
||||
* for highly constrained memory environments.
|
||||
* In both cases, it requires input to lay at the end of the buffer,
|
||||
* and decompression to start at beginning of the buffer.
|
||||
* Buffer size must feature some margin, hence be larger than final size.
|
||||
*
|
||||
* |<------------------------buffer--------------------------------->|
|
||||
* |<-----------compressed data--------->|
|
||||
* |<-----------decompressed size------------------>|
|
||||
* |<----margin---->|
|
||||
*
|
||||
* This technique is more useful for decompression,
|
||||
* since decompressed size is typically larger,
|
||||
* and margin is short.
|
||||
*
|
||||
* In-place decompression will work inside any buffer
|
||||
* which size is >= LZ4_DECOMPRESS_INPLACE_BUFFER_SIZE(decompressedSize).
|
||||
* This presumes that decompressedSize > compressedSize.
|
||||
* Otherwise, it means compression actually expanded data,
|
||||
* and it would be more efficient to store such data with a flag indicating it's not compressed.
|
||||
* This can happen when data is not compressible (already compressed, or encrypted).
|
||||
*
|
||||
* For in-place compression, margin is larger, as it must be able to cope with both
|
||||
* history preservation, requiring input data to remain unmodified up to LZ4_DISTANCE_MAX,
|
||||
* and data expansion, which can happen when input is not compressible.
|
||||
* As a consequence, buffer size requirements are much higher,
|
||||
* and memory savings offered by in-place compression are more limited.
|
||||
*
|
||||
* There are ways to limit this cost for compression :
|
||||
* - Reduce history size, by modifying LZ4_DISTANCE_MAX.
|
||||
* Note that it is a compile-time constant, so all compressions will apply this limit.
|
||||
* Lower values will reduce compression ratio, except when input_size < LZ4_DISTANCE_MAX,
|
||||
* so it's a reasonable trick when inputs are known to be small.
|
||||
* - Require the compressor to deliver a "maximum compressed size".
|
||||
* This is the `dstCapacity` parameter in `LZ4_compress*()`.
|
||||
* When this size is < LZ4_COMPRESSBOUND(inputSize), then compression can fail,
|
||||
* in which case, the return code will be 0 (zero).
|
||||
* The caller must be ready for these cases to happen,
|
||||
* and typically design a backup scheme to send data uncompressed.
|
||||
* The combination of both techniques can significantly reduce
|
||||
* the amount of margin required for in-place compression.
|
||||
*
|
||||
* In-place compression can work in any buffer
|
||||
* which size is >= (maxCompressedSize)
|
||||
* with maxCompressedSize == LZ4_COMPRESSBOUND(srcSize) for guaranteed compression success.
|
||||
* LZ4_COMPRESS_INPLACE_BUFFER_SIZE() depends on both maxCompressedSize and LZ4_DISTANCE_MAX,
|
||||
* so it's possible to reduce memory requirements by playing with them.
|
||||
*/
|
||||
|
||||
#define LZ4_DECOMPRESS_INPLACE_MARGIN(compressedSize) (((compressedSize) >> 8) + 32)
|
||||
#define LZ4_DECOMPRESS_INPLACE_BUFFER_SIZE(decompressedSize) ((decompressedSize) + LZ4_DECOMPRESS_INPLACE_MARGIN(decompressedSize)) /**< note: presumes that compressedSize < decompressedSize. note2: margin is overestimated a bit, since it could use compressedSize instead */
|
||||
|
||||
#ifndef LZ4_DISTANCE_MAX /* history window size; can be user-defined at compile time */
|
||||
# define LZ4_DISTANCE_MAX 65535 /* set to maximum value by default */
|
||||
#endif
|
||||
|
||||
#define LZ4_COMPRESS_INPLACE_MARGIN (LZ4_DISTANCE_MAX + 32) /* LZ4_DISTANCE_MAX can be safely replaced by srcSize when it's smaller */
|
||||
#define LZ4_COMPRESS_INPLACE_BUFFER_SIZE(maxCompressedSize) ((maxCompressedSize) + LZ4_COMPRESS_INPLACE_MARGIN) /**< maxCompressedSize is generally LZ4_COMPRESSBOUND(inputSize), but can be set to any lower value, with the risk that compression can fail (return code 0(zero)) */
|
||||
|
||||
#endif /* LZ4_STATIC_3504398509 */
|
||||
#endif /* LZ4_STATIC_LINKING_ONLY */
|
||||
|
||||
|
||||
|
||||
#ifndef LZ4_H_98237428734687
|
||||
#define LZ4_H_98237428734687
|
||||
|
||||
/*-************************************************************
|
||||
* Private Definitions
|
||||
**************************************************************
|
||||
* Do not use these definitions directly.
|
||||
* They are only exposed to allow static allocation of `LZ4_stream_t` and `LZ4_streamDecode_t`.
|
||||
* Accessing members will expose user code to API and/or ABI break in future versions of the library.
|
||||
**************************************************************/
|
||||
#define LZ4_HASHLOG (LZ4_MEMORY_USAGE-2)
|
||||
#define LZ4_HASHTABLESIZE (1 << LZ4_MEMORY_USAGE)
|
||||
#define LZ4_HASH_SIZE_U32 (1 << LZ4_HASHLOG) /* required as macro for static allocation */
|
||||
|
||||
#if defined(__cplusplus) || (defined (__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) /* C99 */)
|
||||
# include <stdint.h>
|
||||
typedef int8_t LZ4_i8;
|
||||
typedef uint8_t LZ4_byte;
|
||||
typedef uint16_t LZ4_u16;
|
||||
typedef uint32_t LZ4_u32;
|
||||
#else
|
||||
typedef signed char LZ4_i8;
|
||||
typedef unsigned char LZ4_byte;
|
||||
typedef unsigned short LZ4_u16;
|
||||
typedef unsigned int LZ4_u32;
|
||||
#endif
|
||||
|
||||
typedef struct LZ4_stream_t_internal LZ4_stream_t_internal;
|
||||
struct LZ4_stream_t_internal {
|
||||
LZ4_u32 hashTable[LZ4_HASH_SIZE_U32];
|
||||
LZ4_u32 currentOffset;
|
||||
LZ4_u32 tableType;
|
||||
const LZ4_byte* dictionary;
|
||||
const LZ4_stream_t_internal* dictCtx;
|
||||
LZ4_u32 dictSize;
|
||||
};
|
||||
|
||||
typedef struct {
|
||||
const LZ4_byte* externalDict;
|
||||
size_t extDictSize;
|
||||
const LZ4_byte* prefixEnd;
|
||||
size_t prefixSize;
|
||||
} LZ4_streamDecode_t_internal;
|
||||
|
||||
|
||||
/*! LZ4_stream_t :
|
||||
* Do not use below internal definitions directly !
|
||||
* Declare or allocate an LZ4_stream_t instead.
|
||||
* LZ4_stream_t can also be created using LZ4_createStream(), which is recommended.
|
||||
* The structure definition can be convenient for static allocation
|
||||
* (on stack, or as part of larger structure).
|
||||
* Init this structure with LZ4_initStream() before first use.
|
||||
* note : only use this definition in association with static linking !
|
||||
* this definition is not API/ABI safe, and may change in future versions.
|
||||
*/
|
||||
#define LZ4_STREAMSIZE ((1UL << LZ4_MEMORY_USAGE) + 32) /* static size, for inter-version compatibility */
|
||||
#define LZ4_STREAMSIZE_VOIDP (LZ4_STREAMSIZE / sizeof(void*))
|
||||
union LZ4_stream_u {
|
||||
void* table[LZ4_STREAMSIZE_VOIDP];
|
||||
LZ4_stream_t_internal internal_donotuse;
|
||||
}; /* previously typedef'd to LZ4_stream_t */
|
||||
|
||||
|
||||
/*! LZ4_initStream() : v1.9.0+
|
||||
* An LZ4_stream_t structure must be initialized at least once.
|
||||
* This is automatically done when invoking LZ4_createStream(),
|
||||
* but it's not when the structure is simply declared on stack (for example).
|
||||
*
|
||||
* Use LZ4_initStream() to properly initialize a newly declared LZ4_stream_t.
|
||||
* It can also initialize any arbitrary buffer of sufficient size,
|
||||
* and will @return a pointer of proper type upon initialization.
|
||||
*
|
||||
* Note : initialization fails if size and alignment conditions are not respected.
|
||||
* In which case, the function will @return NULL.
|
||||
* Note2: An LZ4_stream_t structure guarantees correct alignment and size.
|
||||
* Note3: Before v1.9.0, use LZ4_resetStream() instead
|
||||
*/
|
||||
LZ4LIB_API LZ4_stream_t* LZ4_initStream (void* buffer, size_t size);
|
||||
|
||||
|
||||
/*! LZ4_streamDecode_t :
|
||||
* information structure to track an LZ4 stream during decompression.
|
||||
* init this structure using LZ4_setStreamDecode() before first use.
|
||||
* note : only use in association with static linking !
|
||||
* this definition is not API/ABI safe,
|
||||
* and may change in a future version !
|
||||
*/
|
||||
#define LZ4_STREAMDECODESIZE_U64 (4 + ((sizeof(void*)==16) ? 2 : 0) /*AS-400*/ )
|
||||
#define LZ4_STREAMDECODESIZE (LZ4_STREAMDECODESIZE_U64 * sizeof(unsigned long long))
|
||||
union LZ4_streamDecode_u {
|
||||
unsigned long long table[LZ4_STREAMDECODESIZE_U64];
|
||||
LZ4_streamDecode_t_internal internal_donotuse;
|
||||
} ; /* previously typedef'd to LZ4_streamDecode_t */
|
||||
|
||||
|
||||
|
||||
/*-************************************
|
||||
* Obsolete Functions
|
||||
**************************************/
|
||||
|
||||
/*! Deprecation warnings
|
||||
*
|
||||
* Deprecated functions make the compiler generate a warning when invoked.
|
||||
* This is meant to invite users to update their source code.
|
||||
* Should deprecation warnings be a problem, it is generally possible to disable them,
|
||||
* typically with -Wno-deprecated-declarations for gcc
|
||||
* or _CRT_SECURE_NO_WARNINGS in Visual.
|
||||
*
|
||||
* Another method is to define LZ4_DISABLE_DEPRECATE_WARNINGS
|
||||
* before including the header file.
|
||||
*/
|
||||
#ifdef LZ4_DISABLE_DEPRECATE_WARNINGS
|
||||
# define LZ4_DEPRECATED(message) /* disable deprecation warnings */
|
||||
#else
|
||||
# if defined (__cplusplus) && (__cplusplus >= 201402) /* C++14 or greater */
|
||||
# define LZ4_DEPRECATED(message) [[deprecated(message)]]
|
||||
# elif defined(_MSC_VER)
|
||||
# define LZ4_DEPRECATED(message) __declspec(deprecated(message))
|
||||
# elif defined(__clang__) || (defined(__GNUC__) && (__GNUC__ * 10 + __GNUC_MINOR__ >= 45))
|
||||
# define LZ4_DEPRECATED(message) __attribute__((deprecated(message)))
|
||||
# elif defined(__GNUC__) && (__GNUC__ * 10 + __GNUC_MINOR__ >= 31)
|
||||
# define LZ4_DEPRECATED(message) __attribute__((deprecated))
|
||||
# else
|
||||
# pragma message("WARNING: LZ4_DEPRECATED needs custom implementation for this compiler")
|
||||
# define LZ4_DEPRECATED(message) /* disabled */
|
||||
# endif
|
||||
#endif /* LZ4_DISABLE_DEPRECATE_WARNINGS */
|
||||
|
||||
/*! Obsolete compression functions (since v1.7.3) */
|
||||
LZ4_DEPRECATED("use LZ4_compress_default() instead") LZ4LIB_API int LZ4_compress (const char* src, char* dest, int srcSize);
|
||||
LZ4_DEPRECATED("use LZ4_compress_default() instead") LZ4LIB_API int LZ4_compress_limitedOutput (const char* src, char* dest, int srcSize, int maxOutputSize);
|
||||
LZ4_DEPRECATED("use LZ4_compress_fast_extState() instead") LZ4LIB_API int LZ4_compress_withState (void* state, const char* source, char* dest, int inputSize);
|
||||
LZ4_DEPRECATED("use LZ4_compress_fast_extState() instead") LZ4LIB_API int LZ4_compress_limitedOutput_withState (void* state, const char* source, char* dest, int inputSize, int maxOutputSize);
|
||||
LZ4_DEPRECATED("use LZ4_compress_fast_continue() instead") LZ4LIB_API int LZ4_compress_continue (LZ4_stream_t* LZ4_streamPtr, const char* source, char* dest, int inputSize);
|
||||
LZ4_DEPRECATED("use LZ4_compress_fast_continue() instead") LZ4LIB_API int LZ4_compress_limitedOutput_continue (LZ4_stream_t* LZ4_streamPtr, const char* source, char* dest, int inputSize, int maxOutputSize);
|
||||
|
||||
/*! Obsolete decompression functions (since v1.8.0) */
|
||||
LZ4_DEPRECATED("use LZ4_decompress_fast() instead") LZ4LIB_API int LZ4_uncompress (const char* source, char* dest, int outputSize);
|
||||
LZ4_DEPRECATED("use LZ4_decompress_safe() instead") LZ4LIB_API int LZ4_uncompress_unknownOutputSize (const char* source, char* dest, int isize, int maxOutputSize);
|
||||
|
||||
/* Obsolete streaming functions (since v1.7.0)
|
||||
* degraded functionality; do not use!
|
||||
*
|
||||
* In order to perform streaming compression, these functions depended on data
|
||||
* that is no longer tracked in the state. They have been preserved as well as
|
||||
* possible: using them will still produce a correct output. However, they don't
|
||||
* actually retain any history between compression calls. The compression ratio
|
||||
* achieved will therefore be no better than compressing each chunk
|
||||
* independently.
|
||||
*/
|
||||
LZ4_DEPRECATED("Use LZ4_createStream() instead") LZ4LIB_API void* LZ4_create (char* inputBuffer);
|
||||
LZ4_DEPRECATED("Use LZ4_createStream() instead") LZ4LIB_API int LZ4_sizeofStreamState(void);
|
||||
LZ4_DEPRECATED("Use LZ4_resetStream() instead") LZ4LIB_API int LZ4_resetStreamState(void* state, char* inputBuffer);
|
||||
LZ4_DEPRECATED("Use LZ4_saveDict() instead") LZ4LIB_API char* LZ4_slideInputBuffer (void* state);
|
||||
|
||||
/*! Obsolete streaming decoding functions (since v1.7.0) */
|
||||
LZ4_DEPRECATED("use LZ4_decompress_safe_usingDict() instead") LZ4LIB_API int LZ4_decompress_safe_withPrefix64k (const char* src, char* dst, int compressedSize, int maxDstSize);
|
||||
LZ4_DEPRECATED("use LZ4_decompress_fast_usingDict() instead") LZ4LIB_API int LZ4_decompress_fast_withPrefix64k (const char* src, char* dst, int originalSize);
|
||||
|
||||
/*! Obsolete LZ4_decompress_fast variants (since v1.9.0) :
|
||||
* These functions used to be faster than LZ4_decompress_safe(),
|
||||
* but this is no longer the case. They are now slower.
|
||||
* This is because LZ4_decompress_fast() doesn't know the input size,
|
||||
* and therefore must progress more cautiously into the input buffer to not read beyond the end of block.
|
||||
* On top of that `LZ4_decompress_fast()` is not protected vs malformed or malicious inputs, making it a security liability.
|
||||
* As a consequence, LZ4_decompress_fast() is strongly discouraged, and deprecated.
|
||||
*
|
||||
* The last remaining LZ4_decompress_fast() specificity is that
|
||||
* it can decompress a block without knowing its compressed size.
|
||||
* Such functionality can be achieved in a more secure manner
|
||||
* by employing LZ4_decompress_safe_partial().
|
||||
*
|
||||
* Parameters:
|
||||
* originalSize : is the uncompressed size to regenerate.
|
||||
* `dst` must be already allocated, its size must be >= 'originalSize' bytes.
|
||||
* @return : number of bytes read from source buffer (== compressed size).
|
||||
* The function expects to finish at block's end exactly.
|
||||
* If the source stream is detected malformed, the function stops decoding and returns a negative result.
|
||||
* note : LZ4_decompress_fast*() requires originalSize. Thanks to this information, it never writes past the output buffer.
|
||||
* However, since it doesn't know its 'src' size, it may read an unknown amount of input, past input buffer bounds.
|
||||
* Also, since match offsets are not validated, match reads from 'src' may underflow too.
|
||||
* These issues never happen if input (compressed) data is correct.
|
||||
* But they may happen if input data is invalid (error or intentional tampering).
|
||||
* As a consequence, use these functions in trusted environments with trusted data **only**.
|
||||
*/
|
||||
LZ4_DEPRECATED("This function is deprecated and unsafe. Consider using LZ4_decompress_safe() instead")
|
||||
LZ4LIB_API int LZ4_decompress_fast (const char* src, char* dst, int originalSize);
|
||||
LZ4_DEPRECATED("This function is deprecated and unsafe. Consider using LZ4_decompress_safe_continue() instead")
|
||||
LZ4LIB_API int LZ4_decompress_fast_continue (LZ4_streamDecode_t* LZ4_streamDecode, const char* src, char* dst, int originalSize);
|
||||
LZ4_DEPRECATED("This function is deprecated and unsafe. Consider using LZ4_decompress_safe_usingDict() instead")
|
||||
LZ4LIB_API int LZ4_decompress_fast_usingDict (const char* src, char* dst, int originalSize, const char* dictStart, int dictSize);
|
||||
|
||||
/*! LZ4_resetStream() :
|
||||
* An LZ4_stream_t structure must be initialized at least once.
|
||||
* This is done with LZ4_initStream(), or LZ4_resetStream().
|
||||
* Consider switching to LZ4_initStream(),
|
||||
* invoking LZ4_resetStream() will trigger deprecation warnings in the future.
|
||||
*/
|
||||
LZ4LIB_API void LZ4_resetStream (LZ4_stream_t* streamPtr);
|
||||
|
||||
|
||||
#endif /* LZ4_H_98237428734687 */
|
||||
|
||||
|
||||
#if defined (__cplusplus)
|
||||
}
|
||||
#endif
|
||||
|
|
@ -1,23 +0,0 @@
|
|||
lz4_dep = dependency('liblz4', required: false)
|
||||
if lz4_dep.found() and get_option('use_sys_lz4')
|
||||
message('Using system-provided lz4 library')
|
||||
elif not get_option('use_smallz4')
|
||||
message('Using bundled lz4')
|
||||
lz4_files = [
|
||||
'lz4.c',
|
||||
]
|
||||
|
||||
lz4_inc = [platform_inc, include_directories('.')]
|
||||
|
||||
libr2lz4 = static_library('r2lz4', lz4_files,
|
||||
include_directories: lz4_inc,
|
||||
implicit_include_directories: false
|
||||
)
|
||||
|
||||
lz4_dep = declare_dependency(
|
||||
link_with: libr2lz4,
|
||||
include_directories: lz4_inc
|
||||
)
|
||||
else
|
||||
message('But using smallz4 instead')
|
||||
endif
|
||||
|
|
@ -1,4 +1,8 @@
|
|||
if get_option('use_smallz4')
|
||||
lz4_dep = dependency('liblz4', required: false)
|
||||
if lz4_dep.found() and get_option('use_sys_lz4')
|
||||
message('Using system-provided lz4 library')
|
||||
else
|
||||
message('Using smallz4')
|
||||
smallz4_files = [
|
||||
'smallz4cat.c',
|
||||
]
|
||||
|
|
@ -8,9 +12,8 @@ if get_option('use_smallz4')
|
|||
include_directories: smallz4_inc,
|
||||
implicit_include_directories: false
|
||||
)
|
||||
smallz4_dep = declare_dependency(
|
||||
lz4_dep = declare_dependency(
|
||||
link_with: libr2smallz4,
|
||||
include_directories: smallz4_inc
|
||||
)
|
||||
|
||||
endif
|
||||
|
|
|
|||
|
|
@ -78,6 +78,7 @@ struct UserPtr
|
|||
};
|
||||
|
||||
/// read a single byte (with simple buffering)
|
||||
#if 0
|
||||
static unsigned char getByteFromIn(void* userPtr) // parameter "userPtr" not needed
|
||||
{
|
||||
/// cast user-specific data
|
||||
|
|
@ -103,6 +104,7 @@ static void sendBytesToOut(const unsigned char* data, unsigned int numBytes, voi
|
|||
if (data != NULL && numBytes > 0)
|
||||
fwrite (data, 1, numBytes, user->out);
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
// ==================== LZ4 DECOMPRESSOR ====================
|
||||
|
|
@ -392,6 +394,7 @@ void unlz4(GET_BYTE getByte, SEND_BYTES sendBytes, const char* dictionary)
|
|||
|
||||
|
||||
/// parse command-line
|
||||
#if 0
|
||||
int main(int argc, const char* argv[])
|
||||
{
|
||||
// default input/output streams
|
||||
|
|
@ -433,3 +436,4 @@ int main(int argc, const char* argv[])
|
|||
unlz4_userPtr (getByteFromIn, sendBytesToOut, dictionary, &user);
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
|
|
|
|||
Loading…
Reference in New Issue