Mercurial > hg > nginx-quic
view src/mysql/config @ 6423:c5f81dcf97a7
Copy filter: fixed sendfile aio handlers to set ctx->aio.
Sendfile handlers (aio preload and thread handler) are called within
ctx->output_filter() in ngx_output_chain(), and hence ctx->aio cannot
be set directly in ngx_output_chain(). Meanwhile, it must be set to
make sure loop within ngx_output_chain() will be properly terminated.
There are no known cases that trigger the problem, though in theory
something like aio + sub filter (something that needs body in memory,
and can also free some memory buffers) + sendfile can result in
"task already active" and "second aio post" alerts.
The fix is to set ctx->aio in ngx_http_copy_aio_sendfile_preload()
and ngx_http_copy_thread_handler().
For consistency, ctx->aio is no longer set explicitly in
ngx_output_chain_copy_buf(), as it's now done in
ngx_http_copy_thread_handler().
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Thu, 03 Mar 2016 21:14:19 +0300 |
parents | 7cbef16c71a1 |
children |
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ngx_addon_name=ngx_mysql HTTP_MODULES="$HTTP_MODULES ngx_http_mysql_test_module" HTTP_INCS="$HTTP_INCS $ngx_addon_dir" HTTP_DEPS="$HTTP_DEPS $ngx_addon_dir/ngx_mysql.h" #CORE_LIBS="$CORE_LIBS -lmd" USE_SHA1=YES NGX_ADDON_SRCS="$NGX_ADDON_SRCS $ngx_addon_dir/ngx_mysql.c" NGX_ADDON_SRCS="$NGX_ADDON_SRCS $ngx_addon_dir/ngx_http_mysql_test.c"