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
line wrap: on
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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