view auto/cc/msvc @ 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 955c4b186354
children 17b3efb45b17
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# Copyright (C) Igor Sysoev
# Copyright (C) Nginx, Inc.


# MSVC 6.0 SP2                            cl 12.00
# MSVC Toolkit 2003 (7.1)                 cl 13.10
# MSVC 2005 Express Edition SP1 (8.0)     cl 14.00
# MSVC 2008 Express Edition (9.0)         cl 15.00
# MSVC 2010 (10.0)                        cl 16.00
# MSVC 2015 (14.0)                        cl 19.00


NGX_MSVC_VER=`$NGX_WINE $CC 2>&1 | grep 'Compiler Version' 2>&1 \
                                 | sed -e 's/^.* Version \(.*\)/\1/'`

echo " + cl version: $NGX_MSVC_VER"

have=NGX_COMPILER value="\"cl $NGX_MSVC_VER\"" . auto/define


ngx_msvc_ver=`echo $NGX_MSVC_VER | sed -e 's/^\([0-9]*\).*/\1/'`


# optimizations

# maximize speed, equivalent to -Og -Oi -Ot -Oy -Ob2 -Gs -GF -Gy
CFLAGS="$CFLAGS -O2"

# enable global optimization
#CFLAGS="$CFLAGS -Og"
# enable intrinsic functions
#CFLAGS="$CFLAGS -Oi"

# disable inline expansion
#CFLAGS="$CFLAGS -Ob0"
# explicit inline expansion
#CFLAGS="$CFLAGS -Ob1"
# explicit and implicit inline expansion
#CFLAGS="$CFLAGS -Ob2"

# enable frame pointer omission
#CFLAGS="$CFLAGS -Oy"
# disable stack checking calls
#CFLAGS="$CFLAGS -Gs"

# pools strings as read/write
#CFLAGS="$CFLAGS -Gf"
# pools strings as read-only
#CFLAGS="$CFLAGS -GF"


case $CPU in
    pentium)
        # optimize for Pentium and Athlon
        CPU_OPT="-G5"
    ;;

    pentiumpro)
        # optimize for Pentium Pro, Pentium II and Pentium III
        CPU_OPT="-G6"
    ;;

    pentium4)
        # optimize for Pentium 4, MSVC 7
        CPU_OPT="-G7"
    ;;
esac

# __cdecl, default, must be used with OpenSSL, md5 asm, and sha1 asm
#CPU_OPT="$CPU_OPT -Gd"
# __stdcall
#CPU_OPT="$CPU_OPT -Gz"
# __fastcall
#CPU_OPT="$CPU_OPT -Gr"


CFLAGS="$CFLAGS $CPU_OPT"


# warnings

CFLAGS="$CFLAGS -W4"

# stop on warning
CFLAGS="$CFLAGS -WX"

# disable logo
CFLAGS="$CFLAGS -nologo"

# the link flags
CORE_LINK="$CORE_LINK -link -verbose:lib"

# link with libcmt.lib, multithreaded
LIBC="-MT"
# link with msvcrt.dll
# however, MSVC Toolkit 2003 has no MSVCRT.LIB
#LIBC="-MD"

CFLAGS="$CFLAGS $LIBC"

CORE_LIBS="$CORE_LIBS kernel32.lib user32.lib"

# Win32 GUI mode application
#CORE_LINK="$CORE_LINK -subsystem:windows -entry:mainCRTStartup"

# debug
# msvc under Wine issues
# C1902: Program database manager mismatch; please check your installation
if [ -z "$NGX_WINE" ]; then
   CFLAGS="$CFLAGS -Zi -Fd$NGX_OBJS/nginx.pdb"
   CORE_LINK="$CORE_LINK -debug"
fi


# MSVC 2005 supports C99 variadic macros
if [ "$ngx_msvc_ver" -ge 14 ]; then
    have=NGX_HAVE_C99_VARIADIC_MACROS . auto/have
fi


# precompiled headers
CORE_DEPS="$CORE_DEPS $NGX_OBJS/ngx_config.pch"
CORE_LINK="$CORE_LINK $NGX_OBJS/ngx_pch.obj"
NGX_PCH="$NGX_OBJS/ngx_config.pch"
NGX_BUILD_PCH="-Ycngx_config.h -Fp$NGX_OBJS/ngx_config.pch"
NGX_USE_PCH="-Yungx_config.h -Fp$NGX_OBJS/ngx_config.pch"


# the resource file
NGX_RES="$NGX_OBJS/nginx.res"
NGX_RCC="rc -fo$NGX_RES \$(CORE_INCS) $NGX_WIN32_RC"
CORE_LINK="$NGX_RES $CORE_LINK"


# dynamic modules
#MAIN_LINK="-link -def:$NGX_OBJS/nginx.def"
#MODULE_LINK="-LD $NGX_OBJS/nginx.lib"


ngx_pic_opt=
ngx_objout="-Fo"
ngx_binout="-Fe"
ngx_objext="obj"

ngx_long_start='@<<
	'
ngx_long_end='<<'
ngx_long_regex_cont=' \
	'
ngx_long_cont='
	'

# MSVC understand / in path
#ngx_regex_dirsep='\\'
#ngx_dirsep="\\"