Mercurial > hg > nginx
view auto/feature @ 9121:262c01782566
HTTP/2: removed server push (ticket #2432).
Although it has better implementation status than HTTP/3 server push,
it remains of limited use, with adoption numbers seen as negligible.
Per IETF 102 materials, server push was used only in 0.04% of sessions.
It was considered to be "difficult to use effectively" in RFC 9113.
Its use is further limited by badly matching to fetch/cache/connection
models in browsers, see related discussions linked from [1].
Server push was disabled in Chrome 106 [2].
The http2_push, http2_push_preload, and http2_max_concurrent_pushes
directives are made obsolete. In particular, this essentially reverts
7201:641306096f5b and 7207:3d2b0b02bd3d.
[1] https://jakearchibald.com/2017/h2-push-tougher-than-i-thought/
[2] https://chromestatus.com/feature/6302414934114304
author | Sergey Kandaurov <pluknet@nginx.com> |
---|---|
date | Thu, 08 Jun 2023 16:56:46 +0400 |
parents | e3faa5fb7772 |
children |
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# Copyright (C) Igor Sysoev # Copyright (C) Nginx, Inc. echo $ngx_n "checking for $ngx_feature ...$ngx_c" cat << END >> $NGX_AUTOCONF_ERR ---------------------------------------- checking for $ngx_feature END ngx_found=no if test -n "$ngx_feature_name"; then ngx_have_feature=`echo $ngx_feature_name \ | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ` fi if test -n "$ngx_feature_path"; then for ngx_temp in $ngx_feature_path; do ngx_feature_inc_path="$ngx_feature_inc_path -I $ngx_temp" done fi cat << END > $NGX_AUTOTEST.c #include <sys/types.h> $NGX_INCLUDE_UNISTD_H $ngx_feature_incs int main(void) { $ngx_feature_test; return 0; } END ngx_test="$CC $CC_TEST_FLAGS $CC_AUX_FLAGS $ngx_feature_inc_path \ -o $NGX_AUTOTEST $NGX_AUTOTEST.c $NGX_TEST_LD_OPT $ngx_feature_libs" ngx_feature_inc_path= eval "/bin/sh -c \"$ngx_test\" >> $NGX_AUTOCONF_ERR 2>&1" if [ -x $NGX_AUTOTEST ]; then case "$ngx_feature_run" in yes) # /bin/sh is used to intercept "Killed" or "Abort trap" messages if /bin/sh -c $NGX_AUTOTEST >> $NGX_AUTOCONF_ERR 2>&1; then echo " found" ngx_found=yes if test -n "$ngx_feature_name"; then have=$ngx_have_feature . auto/have fi else echo " found but is not working" fi ;; value) # /bin/sh is used to intercept "Killed" or "Abort trap" messages if /bin/sh -c $NGX_AUTOTEST >> $NGX_AUTOCONF_ERR 2>&1; then echo " found" ngx_found=yes cat << END >> $NGX_AUTO_CONFIG_H #ifndef $ngx_feature_name #define $ngx_feature_name `$NGX_AUTOTEST` #endif END else echo " found but is not working" fi ;; bug) # /bin/sh is used to intercept "Killed" or "Abort trap" messages if /bin/sh -c $NGX_AUTOTEST >> $NGX_AUTOCONF_ERR 2>&1; then echo " not found" else echo " found" ngx_found=yes if test -n "$ngx_feature_name"; then have=$ngx_have_feature . auto/have fi fi ;; *) echo " found" ngx_found=yes if test -n "$ngx_feature_name"; then have=$ngx_have_feature . auto/have fi ;; esac else echo " not found" echo "----------" >> $NGX_AUTOCONF_ERR cat $NGX_AUTOTEST.c >> $NGX_AUTOCONF_ERR echo "----------" >> $NGX_AUTOCONF_ERR echo $ngx_test >> $NGX_AUTOCONF_ERR echo "----------" >> $NGX_AUTOCONF_ERR fi rm -rf $NGX_AUTOTEST*