Mercurial > hg > nginx
view auto/types/typedef @ 7948:a2613fc1bce5
Fixed sendfile() limit handling on Linux.
On Linux starting with 2.6.16, sendfile() silently limits all operations
to MAX_RW_COUNT, defined as (INT_MAX & PAGE_MASK). This incorrectly
triggered the interrupt check, and resulted in 0-sized writev() on the
next loop iteration.
Fix is to make sure the limit is always checked, so we will return from
the loop if the limit is already reached even if number of bytes sent is
not exactly equal to the number of bytes we've tried to send.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Fri, 29 Oct 2021 20:21:51 +0300 |
parents | e3faa5fb7772 |
children |
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# Copyright (C) Igor Sysoev # Copyright (C) Nginx, Inc. echo $ngx_n "checking for $ngx_type ...$ngx_c" cat << END >> $NGX_AUTOCONF_ERR ---------------------------------------- checking for $ngx_type END ngx_found=no for ngx_try in $ngx_type $ngx_types do cat << END > $NGX_AUTOTEST.c #include <sys/types.h> #include <signal.h> #include <sys/socket.h> #include <sys/time.h> #include <sys/resource.h> #include <netinet/in.h> $NGX_INCLUDE_INTTYPES_H int main(void) { $ngx_try i = 0; return (int) i; } END ngx_test="$CC $CC_TEST_FLAGS $CC_AUX_FLAGS \ -o $NGX_AUTOTEST $NGX_AUTOTEST.c $NGX_LD_OPT $ngx_feature_libs" eval "$ngx_test >> $NGX_AUTOCONF_ERR 2>&1" if [ -x $NGX_AUTOTEST ]; then if [ $ngx_try = $ngx_type ]; then echo " found" ngx_found=yes else echo ", $ngx_try used" ngx_found=$ngx_try fi fi if [ $ngx_found = no ]; then if [ $ngx_try = $ngx_type ]; then echo $ngx_n " $ngx_try not found$ngx_c" else echo $ngx_n ", $ngx_try not found$ngx_c" fi 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* if [ $ngx_found != no ]; then break fi done if [ $ngx_found = no ]; then echo echo "$0: error: can not define $ngx_type" exit 1 fi if [ $ngx_found != yes ]; then echo "typedef $ngx_found $ngx_type;" >> $NGX_AUTO_CONFIG_H fi