Merge of r5004, r5019-r5025: ssl fixes. *) SSL: speedup loading of configs with many ssl servers. The patch saves one EC_KEY_generate_key() call per server{} block by informing OpenSSL about SSL_OP_SINGLE_ECDH_USE we are going to use before the SSL_CTX_set_tmp_ecdh() call. For a configuration file with 10k simple server{} blocks with SSL enabled this change reduces startup time from 18s to 5s on a slow test box here. *) SSL: removed conditions that always hold true. *) SSL: resetting of flush flag after the data was written. There is no need to flush next chunk of data if it does not contain a buffer with the flush or last_buf flags set. *) SSL: preservation of flush flag for buffered data. Previously, if SSL buffer was not sent we lost information that the data must be flushed. *) SSL: calculation of buffer size moved closer to its usage. No functional changes. *) SSL: avoid calling SSL_write() with zero data size. According to documentation, calling SSL_write() with num=0 bytes to be sent results in undefined behavior. We don't currently call ngx_ssl_send_chain() with empty chain and buffer. This check handles the case of a chain with total data size that is a multiple of NGX_SSL_BUFSIZE, and with the special buffer at the end. In practice such cases resulted in premature connection close and critical error "SSL_write() failed (SSL:)" in the error log. *) SSL: take into account data in the buffer while limiting output. In some rare cases this can result in a more smooth sending rate. *) SSL: fixed ngx_ssl_handshake() with level-triggered event methods. Missing calls to ngx_handle_write_event() and ngx_handle_read_event() resulted in a CPU hog during SSL handshake if an level-triggered event method (e.g. select) was used.

# Copyright (C) Igor Sysoev
# Copyright (C) Nginx, Inc.


# Borland C++ 5.5

# optimizations

# maximize speed
CFLAGS="$CFLAGS -O2"

case $CPU in
    pentium)
        # optimize for Pentium and Athlon
        CPU_OPT="-5"
    ;;

    pentiumpro)
        # optimize for Pentium Pro, Pentium II and Pentium III
        CPU_OPT="-6"
    ;;
esac

# __stdcall
#CPU_OPT="$CPU_OPT -ps"
# __fastcall
#CPU_OPT="$CPU_OPT -pr"

CFLAGS="$CFLAGS $CPU_OPT"

# multithreaded
CFLAGS="$CFLAGS -tWM"

# stop on warning
CFLAGS="$CFLAGS -w!"

# disable logo
CFLAGS="$CFLAGS -q"


# precompiled headers
CORE_DEPS="$CORE_DEPS $NGX_OBJS/ngx_config.csm"
NGX_PCH="$NGX_OBJS/ngx_config.csm"
NGX_BUILD_PCH="-H=$NGX_OBJS/ngx_config.csm"
NGX_USE_PCH="-Hu -H=$NGX_OBJS/ngx_config.csm"


# Win32 GUI mode application
#LINK="\$(CC) -laa"


# the resource file
NGX_RES="$NGX_OBJS/nginx.res"
NGX_RCC="brcc32 -fo$NGX_OBJS/nginx.res \$(CORE_INCS) $NGX_WIN32_RC"
# the pragma allows to link the resource file using bcc32 and
# to avoid the direct ilink32 calling and the c0w32.obj's WinMain/main problem
NGX_PRAGMA="#pragma resource \"$NGX_OBJS/nginx.res\""


ngx_include_opt="-I"
ngx_objout="-o"
ngx_binout="-e"
ngx_objext="obj"
ngx_binext=".exe"

ngx_long_start='@&&|
	'
ngx_long_end='|'

ngx_regex_dirsep='\\'
ngx_dirsep="\\"