Upstream: fixed running posted requests (ticket #788). Previously, the upstream resolve handler always called ngx_http_run_posted_requests() to run posted requests after processing the resolver response. However, if the handler was called directly from the ngx_resolve_name() function (for example, if the resolver response was cached), running posted requests from the handler could lead to the following errors: - If the request was scheduled for termination, it could actually be terminated in the resolve handler. Upper stack frames could reference the freed request object in this case. - If a significant number of requests were posted, and for each of them the resolve handler was called directly from the ngx_resolve_name() function, posted requests could be run recursively and lead to stack overflow. Now ngx_http_run_posted_requests() is only called from asynchronously invoked resolve handlers.

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


NGX_MAKEFILE=$NGX_OBJS/Makefile
NGX_MODULES_C=$NGX_OBJS/ngx_modules.c

NGX_AUTO_HEADERS_H=$NGX_OBJS/ngx_auto_headers.h
NGX_AUTO_CONFIG_H=$NGX_OBJS/ngx_auto_config.h

NGX_AUTOTEST=$NGX_OBJS/autotest
NGX_AUTOCONF_ERR=$NGX_OBJS/autoconf.err

# STUBs
NGX_ERR=$NGX_OBJS/autoconf.err
MAKEFILE=$NGX_OBJS/Makefile


NGX_PCH=
NGX_USE_PCH=


# check the echo's "-n" option and "\c" capability

if echo "test\c" | grep c >/dev/null; then

    if echo -n test | grep n >/dev/null; then
        ngx_n=
        ngx_c=

    else
        ngx_n=-n
        ngx_c=
    fi

else
    ngx_n=
    ngx_c='\c'
fi


# create Makefile

cat << END > Makefile

default:	build

clean:
	rm -rf Makefile $NGX_OBJS
END