view auto/cc/sunc @ 8743:5d09596909c6 stable-1.20

Upstream: fixed timeouts with gRPC, SSL and select (ticket #2229). With SSL it is possible that an established connection is ready for reading after the handshake. Further, events might be already disabled in case of level-triggered event methods. If this happens and ngx_http_upstream_send_request() blocks waiting for some data from the upstream, such as flow control in case of gRPC, the connection will time out due to no read events on the upstream connection. Fix is to explicitly check the c->read->ready flag if sending request blocks and post a read event if it is set. Note that while it is possible to modify ngx_ssl_handshake() to keep read events active, this won't completely resolve the issue, since there can be data already received during the SSL handshake (see 573bd30e46b4).
author Maxim Dounin <mdounin@mdounin.ru>
date Fri, 20 Aug 2021 03:53:56 +0300
parents d8e8ced78e77
children
line wrap: on
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# Copyright (C) Igor Sysoev
# Copyright (C) Nginx, Inc.


# Sun C 5.7 Patch 117837-04 2005/05/11    Sun Studio 10
# Sun C 5.8 2005/10/13                    Sun Studio 11
# Sun C 5.9 SunOS_i386 2007/05/03         Sun Studio 12
# Sun C 5.9 SunOS_sparc 2007/05/03
# Sun C 5.10 SunOS_i386 2009/06/03        Sun Studio 12.1
# Sun C 5.11 SunOS_i386 2010/08/13        Oracle Solaris Studio 12.2
# Sun C 5.12 SunOS_i386 2011/11/16        Oracle Solaris Studio 12.3
# Sun C 5.13 SunOS_i386 2014/10/20        Oracle Solaris Studio 12.4
# Sun C 5.14 SunOS_i386 2016/05/31        Oracle Developer Studio 12.5

NGX_SUNC_VER=`$CC -V 2>&1 | grep 'Sun C' 2>&1 \
                          | sed -e 's/^.* Sun C \(.*\)/\1/'`

echo " + Sun C version: $NGX_SUNC_VER"

have=NGX_COMPILER value="\"Sun C $NGX_SUNC_VER\"" . auto/define


cat << END > $NGX_AUTOTEST.c

int main(void) {
    printf("%d", __SUNPRO_C);
    return 0;
}

END

eval "$CC -o $NGX_AUTOTEST $NGX_AUTOTEST.c >> $NGX_ERR 2>&1"

if [ -x $NGX_AUTOTEST ]; then
    ngx_sunc_ver=`$NGX_AUTOTEST`
fi

rm -rf $NGX_AUTOTEST*

# 1424 == 0x590, Sun Studio 12

if [ "$ngx_sunc_ver" -ge 1424 ]; then
    ngx_sparc32="-m32"
    ngx_sparc64="-m64"
    ngx_amd64="-m64"

else
    ngx_sparc32="-xarch=v8plus"
    ngx_sparc64="-xarch=v9"
    ngx_amd64="-xarch=amd64"
fi

case "$NGX_MACHINE" in

    i86pc)
        NGX_AUX=" src/os/unix/ngx_sunpro_x86.il"
    ;;

    sun4u | sun4v)
        NGX_AUX=" src/os/unix/ngx_sunpro_sparc64.il"
    ;;

esac

MAIN_LINK=
MODULE_LINK="-G"


# optimizations

# 20736 == 0x5100, Sun Studio 12.1

if [ "$ngx_sunc_ver" -ge 20736 ]; then
    ngx_fast="-fast"

else
    # older versions had problems with bit-fields
    ngx_fast="-fast -xalias_level=any"
fi

IPO=-xipo
CFLAGS="$CFLAGS $ngx_fast $IPO"
CORE_LINK="$CORE_LINK $ngx_fast $IPO"


case $CPU in
    pentium)
        # optimize for Pentium and Athlon
        CPU_OPT="-xchip=pentium"
    ;;

    pentiumpro)
        # optimize for Pentium Pro, Pentium II
        CPU_OPT="-xchip=pentium_pro"
    ;;

    pentium3)
        # optimize for Pentium III
        CPU_OPT="-xchip=pentium3"
        #CPU_OPT="$CPU_OPT -xarch=sse"
        CPU_OPT="$CPU_OPT -xcache=16/32/4:256/32/4"
    ;;

    pentium4)
        # optimize for Pentium 4
        CPU_OPT="-xchip=pentium4"
        #CPU_OPT="$CPU_OPT -xarch=sse2"
        CPU_OPT="$CPU_OPT -xcache=8/64/4:256/128/8"
    ;;

    opteron)
        # optimize for Opteron
        CPU_OPT="-xchip=opteron"
        #CPU_OPT="$CPU_OPT -xarch=sse2"
        CPU_OPT="$CPU_OPT -xcache=64/64/2:1024/64/16"
    ;;

    sparc32)
        # build 32-bit UltraSparc binary
        CPU_OPT="$ngx_sparc32"
        CORE_LINK="$CORE_LINK $ngx_sparc32"
        CC_AUX_FLAGS="$CC_AUX_FLAGS $ngx_sparc32"
        NGX_CPU_CACHE_LINE=64
    ;;

    sparc64)
        # build 64-bit UltraSparc binary
        CPU_OPT="$ngx_sparc64"
        CORE_LINK="$CORE_LINK $ngx_sparc64"
        CC_AUX_FLAGS="$CC_AUX_FLAGS $ngx_sparc64"
        NGX_CPU_CACHE_LINE=64
    ;;

    amd64)
        # build 64-bit amd64 binary
        CPU_OPT="$ngx_amd64"
        CORE_LINK="$CORE_LINK $ngx_amd64"
        CC_AUX_FLAGS="$CC_AUX_FLAGS $ngx_amd64"
        NGX_AUX=" src/os/unix/ngx_sunpro_amd64.il"
        NGX_CPU_CACHE_LINE=64
    ;;

esac


CFLAGS="$CFLAGS $CPU_OPT"


if [ ".$PCRE_OPT" = "." ]; then
    PCRE_OPT="$ngx_fast $IPO $CPU_OPT"
fi

if [ ".$ZLIB_OPT" = "." ]; then
    ZLIB_OPT="$ngx_fast $IPO $CPU_OPT"
fi


# stop on warning
CFLAGS="$CFLAGS -errwarn=%all"

# debug
CFLAGS="$CFLAGS -g"