For #2532: Windows: Support CYGWIN64 for SRS (#3255)

1. Support cygwin by '--cygwin64=on'
2. Detect cygwin automatically.
3. Disalbe sanitizer, srt and srtp with openssl.
4. Disable multiple threads, use single threads.
5. Support utest for cygwin64.
6. Query features for windows by API.
7. Disable stat APIs for cygwin.
8. Use ST select event driver.

Co-authored-by: wenjie.zhao <740936897@qq.com>

trunk/auto/auto_headers.sh

@@ -178,6 +178,11 @@ if [[ $SRS_CROSS_BUILD == YES ]]; then
 else
     srs_undefine_macro "SRS_CROSSBUILD" $SRS_AUTO_HEADERS_H
 fi
+if [[ $SRS_CYGWIN64 == YES ]]; then
+    srs_define_macro "SRS_CYGWIN64" $SRS_AUTO_HEADERS_H
+else
+    srs_undefine_macro "SRS_CYGWIN64" $SRS_AUTO_HEADERS_H
+fi
 if [[ $SRS_OSX == YES ]]; then
     srs_define_macro "SRS_OSX" $SRS_AUTO_HEADERS_H
 else

trunk/auto/depends.sh

@@ -293,7 +293,7 @@ OSX_prepare; ret=$?; if [[ 0 -ne $ret ]]; then echo "OSX prepare failed, ret=$re
 #####################################################################################
 # Check OS and CPU architectures.
 #####################################################################################
-if [[ $OS_IS_UBUNTU != YES && $OS_IS_CENTOS != YES && $OS_IS_OSX != YES && $SRS_CROSS_BUILD != YES ]]; then
+if [[ $OS_IS_UBUNTU != YES && $OS_IS_CENTOS != YES && $OS_IS_OSX != YES && $SRS_CROSS_BUILD != YES && $SRS_CYGWIN64 != YES ]]; then
     echo "Your OS `uname -s` is not supported."
     exit 1
 fi
@@ -347,6 +347,10 @@ fi
 if [[ $SRS_OSX == YES ]]; then
     _ST_MAKE=darwin-debug && _ST_OBJ="DARWIN_`uname -r`_DBG"
 fi
+# for windows/cygwin
+if [[ $SRS_CYGWIN64 = YES ]]; then
+    _ST_MAKE=cygwin64-debug && _ST_OBJ="CYGWIN64_`uname -s`_DBG"
+fi
 # For Ubuntu, the epoll detection might be fail.
 if [[ $OS_IS_UBUNTU == YES ]]; then
     _ST_EXTRA_CFLAGS="$_ST_EXTRA_CFLAGS -DMD_HAVE_EPOLL"
@@ -598,8 +602,16 @@ if [[ $SRS_RTC == YES ]]; then
         rm -rf ${SRS_OBJS}/${SRS_PLATFORM}/libsrtp-2-fit ${SRS_OBJS}/${SRS_PLATFORM}/3rdpatry/srtp2 \
             ${SRS_OBJS}/srtp2 &&
         cp -rf ${SRS_WORKDIR}/3rdparty/libsrtp-2-fit ${SRS_OBJS}/${SRS_PLATFORM}/ &&
-        patch -p0 ${SRS_OBJS}/${SRS_PLATFORM}/libsrtp-2-fit/crypto/math/datatypes.c ${SRS_WORKDIR}/3rdparty/patches/srtp/gcc10-01.patch &&
-        patch -p0 ${SRS_OBJS}/${SRS_PLATFORM}/libsrtp-2-fit/config.guess ${SRS_WORKDIR}/3rdparty/patches/srtp/config.guess-02.patch &&
+        # For cygwin64, the patch is not available, so use sed instead.
+        if [[ $SRS_CYGWIN64 == YES ]]; then
+            sed -i 's/char bit_string/static char bit_string/g' ${SRS_OBJS}/${SRS_PLATFORM}/libsrtp-2-fit/crypto/math/datatypes.c
+        else
+            patch -p0 ${SRS_OBJS}/${SRS_PLATFORM}/libsrtp-2-fit/crypto/math/datatypes.c ${SRS_WORKDIR}/3rdparty/patches/srtp/gcc10-01.patch
+        fi &&
+        # Patch the cpu arch guessing for RISCV.
+        if [[ $OS_IS_RISCV == YES ]]; then
+            patch -p0 ${SRS_OBJS}/${SRS_PLATFORM}/libsrtp-2-fit/config.guess ${SRS_WORKDIR}/3rdparty/patches/srtp/config.guess-02.patch
+        fi &&
         (
             cd ${SRS_OBJS}/${SRS_PLATFORM}/libsrtp-2-fit &&
             $SRTP_CONFIGURE ${SRTP_OPTIONS} --prefix=${SRS_DEPENDS_LIBS}/${SRS_PLATFORM}/3rdpatry/srtp2
@@ -768,16 +780,16 @@ if [[ $SRS_SRT == YES ]]; then
     else
         LIBSRT_OPTIONS="$LIBSRT_OPTIONS --enable-shared=0"
     fi
+    # For windows build, over cygwin
+    if [[ $SRS_CYGWIN64 == YES ]]; then
+        LIBSRT_OPTIONS="$LIBSRT_OPTIONS --cygwin-use-posix"
+    fi
     # For cross-build.
     if [[ $SRS_CROSS_BUILD == YES ]]; then
         TOOL_GCC_REALPATH=$(realpath $(which $SRS_TOOL_CC))
         SRT_COMPILER_PREFIX=$(echo $TOOL_GCC_REALPATH |sed 's/-gcc.*$/-/')
         LIBSRT_OPTIONS="$LIBSRT_OPTIONS --with-compiler-prefix=$SRT_COMPILER_PREFIX"
     fi
-    # For windows build, over cygwin
-    if [[ $SRS_CYGWIN64 == YES ]]; then
-        LIBSRT_OPTIONS="$LIBSRT_OPTIONS --cygwin-use-posix"
-    fi
 
     if [[ -f ${SRS_OBJS}/${SRS_PLATFORM}/3rdpatry/srt/lib/libsrt.a ]]; then
         rm -rf ${SRS_OBJS}/srt && cp -rf ${SRS_OBJS}/${SRS_PLATFORM}/3rdpatry/srt ${SRS_OBJS}/ &&

trunk/auto/options.sh

@@ -84,6 +84,7 @@ SRS_GPROF=NO # Performance test: gprof
 ################################################################
 # Preset options
 SRS_OSX= #For OSX/macOS/Darwin PC.
+SRS_CYGWIN64= # For Cygwin64 for Windows PC or servers.
 SRS_CROSS_BUILD= #For cross build, for example, on Ubuntu.
 # For cross build, the cpu, for example(FFmpeg), --cpu=24kc
 SRS_CROSS_BUILD_CPU=
@@ -119,6 +120,7 @@ function show_help() {
 Presets:
   --cross-build             Enable cross-build, please set bellow Toolchain also. Default: $(value2switch $SRS_CROSS_BUILD)
   --osx                     Enable build for OSX/Darwin AppleOS. Default: $(value2switch $SRS_OSX)
+  --cygwin64                Use cygwin64 to build for Windows. Default: $(value2switch $SRS_CYGWIN64)
 
 Features:
   -h, --help                Print this message and exit 0.
@@ -253,6 +255,7 @@ function parse_user_option() {
         --build-tag)                    SRS_BUILD_TAG=${value}      ;;
 
         --osx)                          SRS_OSX=YES                 ;;
+        --cygwin64)                     SRS_CYGWIN64=YES            ;;
 
         --without-srtp-nasm)            SRS_SRTP_ASM=NO             ;;
         --with-srtp-nasm)               SRS_SRTP_ASM=YES            ;;
@@ -450,6 +453,10 @@ do
 done
 
 function apply_auto_options() {
+    if [[ $OS_IS_CYGWIN == YES ]]; then
+        SRS_CYGWIN64=YES
+    fi
+
     if [[ $SRS_CROSS_BUILD == YES ]]; then
         if [[ $SRS_CROSS_BUILD_PREFIX != "" && $SRS_CROSS_BUILD_HOST == "" ]]; then
             SRS_CROSS_BUILD_HOST=$(echo $SRS_CROSS_BUILD_PREFIX| sed 's/-$//g')
@@ -503,6 +510,31 @@ function apply_auto_options() {
         SRS_SRTP_ASM=NO
     fi
 
+    # TODO: FIXME: Should build address sanitizer for cygwin64.
+    # See https://github.com/ossrs/srs/issues/3252
+    if [[ $SRS_CYGWIN64 == YES && $SRS_SANITIZER == YES ]]; then
+        echo "Disable address sanitizer for cygwin64"
+        SRS_SANITIZER=NO
+    fi
+    # TODO: FIXME: Should fix bug for SRT for cygwin64. Build ok, but fail in SrsSrtSocket::accept.
+    # See https://github.com/ossrs/srs/issues/3251
+    if [[ $SRS_CYGWIN64 == YES && $SRS_SRT == YES ]]; then
+        echo "Disable SRT for cygwin64"
+        SRS_SRT=NO
+    fi
+    # TODO: FIXME: Cygwin: ST stuck when working in multiple threads mode.
+    # See https://github.com/ossrs/srs/issues/3253
+    if [[ $SRS_CYGWIN64 == YES && $SRS_SINGLE_THREAD != YES ]]; then
+        echo "Force single thread for cygwin64"
+        SRS_SINGLE_THREAD=YES
+    fi
+    # TODO: FIXME: Cygwin: Build srtp with openssl fail for no srtp_aes_icm_ctx_t
+    # See https://github.com/ossrs/srs/issues/3254
+    if [[ $SRS_CYGWIN64 == YES && $SRS_SRTP_ASM == YES ]]; then
+        echo "Disable SRTP with openssl for cygwin64"
+        SRS_SRTP_ASM=NO
+    fi
+
     # parse the jobs for make
     if [[ ! -z SRS_JOBS ]]; then
         export SRS_JOBS="--jobs=${SRS_JOBS}"
@@ -589,6 +621,7 @@ function regenerate_options() {
     SRS_AUTO_CONFIGURE="${SRS_AUTO_CONFIGURE} --debug-stats=$(value2switch $SRS_DEBUG_STATS)"
     SRS_AUTO_CONFIGURE="${SRS_AUTO_CONFIGURE} --cross-build=$(value2switch $SRS_CROSS_BUILD)"
     SRS_AUTO_CONFIGURE="${SRS_AUTO_CONFIGURE} --sanitizer=$(value2switch $SRS_SANITIZER)"
+    SRS_AUTO_CONFIGURE="${SRS_AUTO_CONFIGURE} --cygwin64=$(value2switch $SRS_CYGWIN64)"
     SRS_AUTO_CONFIGURE="${SRS_AUTO_CONFIGURE} --single-thread=$(value2switch $SRS_SINGLE_THREAD)"
     if [[ $SRS_CROSS_BUILD_ARCH != "" ]]; then SRS_AUTO_CONFIGURE="$SRS_AUTO_CONFIGURE --arch=$SRS_CROSS_BUILD_ARCH"; fi
     if [[ $SRS_CROSS_BUILD_CPU != "" ]]; then SRS_AUTO_CONFIGURE="$SRS_AUTO_CONFIGURE --cpu=$SRS_CROSS_BUILD_CPU"; fi

trunk/auto/setup_variables.sh

@@ -5,6 +5,10 @@ OS_KERNEL_NAME=$(uname -s)
 OS_KERNRL_RELEASE=$(uname -r|awk -F '-' '{print $1}')
 OS_PREFIX="Platform"
 
+if [[ $OSTYPE == cygwin ]]; then
+    OS_KERNRL_RELEASE=$(uname -r|awk -F '(' '{print $1}')
+fi
+
 # Build platform cache.
 SRS_PLATFORM="${SRS_BUILD_TAG}${OS_PREFIX}-${OS_KERNEL_NAME}-${OS_KERNRL_RELEASE}"
 # Build platform cache with gcc version.

trunk/auto/utest.sh

@@ -17,7 +17,13 @@ mkdir -p ${SRS_OBJS}/${SRS_PLATFORM}/utest
 # trunk of srs, which contains the src dir, relative to objs/utest, it's trunk
 SRS_TRUNK_PREFIX=../../..
 # gest dir, relative to objs/utest, it's trunk/objs/{Platform}/gtest
-GTEST_DIR=${SRS_TRUNK_PREFIX}/${SRS_OBJS}/${SRS_PLATFORM}/3rdpatry/gtest/googletest
+GTEST_DIR=../3rdpatry/gtest/googletest
+
+# Whether enable C++11 or higher versions.
+# For linux, always use C++11 for gtest required, see https://github.com/google/googletest
+# For cygwin64, ignore because it use -std=gnu++11 by default.
+SRS_CPP_VERSION="-std=c++11"
+if [[ $SRS_CYGWIN64 == YES ]]; then SRS_CPP_VERSION="-std=gnu++11"; fi
 
 cat << END > ${FILE}
 # user must run make the ${SRS_OBJS}/utest dir
@@ -51,9 +57,9 @@ CXX = ${SRS_TOOL_CXX}
 CPPFLAGS += -I\$(GTEST_DIR)/include
 
 # Flags passed to the C++ compiler.
-CXXFLAGS += ${CXXFLAGS} ${UTEST_EXTRA_DEFINES} -Wno-unused-private-field -Wno-unused-command-line-argument
-# Always use C++11 for gtest required, see https://github.com/google/googletest
-CXXFLAGS += -std=c++11
+CXXFLAGS += ${CXXFLAGS} ${UTEST_EXTRA_DEFINES}
+CXXFLAGS += -Wno-unused-private-field -Wno-unused-command-line-argument
+CXXFLAGS += ${SRS_CPP_VERSION}
 
 # All tests produced by this Makefile.  Remember to add new tests you
 # created to the list.