Mercurial > hg > nginx
view auto/lib/google-perftools/conf @ 6957:83bae3d354ab
HTTP/2: fixed connection finalization.
All streams in connection must be finalized before the connection
itself can be finalized and all related memory is freed. That's
not always possible on the current event loop iteration.
Thus when the last stream is finalized, it sets the special read
event handler ngx_http_v2_handle_connection_handler() and posts
the event.
Previously, this handler didn't check the connection state and
could call the regular event handler on a connection that was
already in finalization stage. In the worst case that could
lead to a segmentation fault, since some data structures aren't
supposed to be used during connection finalization. Particularly,
the waiting queue can contain already freed streams, so the
WINDOW_UPDATE frame received by that moment could trigger
accessing to these freed streams.
Now, the connection error flag is explicitly checked in
ngx_http_v2_handle_connection_handler().
author | Valentin Bartenev <vbart@nginx.com> |
---|---|
date | Wed, 29 Mar 2017 20:21:01 +0300 |
parents | 0e1491139947 |
children | f7e79596baf2 |
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# Copyright (C) Igor Sysoev # Copyright (C) Nginx, Inc. ngx_feature="Google perftools" ngx_feature_name= ngx_feature_run=no ngx_feature_incs= ngx_feature_path= ngx_feature_libs="-lprofiler" ngx_feature_test="ProfilerStop()" . auto/feature if [ $ngx_found = no ]; then # FreeBSD port ngx_feature="Google perftools in /usr/local/" if [ $NGX_RPATH = YES ]; then ngx_feature_libs="-R/usr/local/lib -L/usr/local/lib -lprofiler" else ngx_feature_libs="-L/usr/local/lib -lprofiler" fi . auto/feature fi if [ $ngx_found = no ]; then # MacPorts ngx_feature="Google perftools in /opt/local/" if [ $NGX_RPATH = YES ]; then ngx_feature_libs="-R/opt/local/lib -L/opt/local/lib -lprofiler" else ngx_feature_libs="-L/opt/local/lib -lprofiler" fi . auto/feature fi if [ $ngx_found = yes ]; then CORE_LIBS="$CORE_LIBS $ngx_feature_libs" else cat << END $0: error: the Google perftools module requires the Google perftools library. You can either do not enable the module or install the library. END exit 1 fi