16.12.2020 10:05, 张翔 пишет:
> # HG changeset patch
> # User Zhang Xiang <hawkxiang.cpp@gmail.com
> <mailto:hawkxiang.cpp@gmail.com>>
> # Date 1608099124 -28800
> #      Wed Dec 16 14:12:04 2020 +0800
> # Node ID a685d9c04acdb4ec71fd9f176415917c217af630
> # Parent  82228f955153527fba12211f52bf102c90f38dfb
> Event: accept4() support SOCK_CLOEXEC flag
>
> The close-on-exec flag on the new FD can be set via SOCK_CLOEXEC
>
> diff -r 82228f955153 -r a685d9c04acd auto/unix
> --- a/auto/unix Tue Dec 15 17:41:39 2020 +0300
> +++ b/auto/unix Wed Dec 16 14:12:04 2020 +0800
> @@ -510,7 +510,7 @@
>  ngx_feature_incs="#include <sys/socket.h>"
>  ngx_feature_path=
>  ngx_feature_libs=
> -ngx_feature_test="accept4(0, NULL, NULL, SOCK_NONBLOCK)"
> +ngx_feature_test="accept4(0, NULL, NULL, SOCK_NONBLOCK | SOCK_CLOEXEC)"
>  . auto/feature
>
>  if [ $NGX_FILE_AIO = YES ]; then
> diff -r 82228f955153 -r a685d9c04acd src/event/ngx_event_accept.c
> --- a/src/event/ngx_event_accept.c      Tue Dec 15 17:41:39 2020 +0300
> +++ b/src/event/ngx_event_accept.c      Wed Dec 16 14:12:04 2020 +0800
> @@ -57,7 +57,7 @@
>
>  #if (NGX_HAVE_ACCEPT4)
>          if (use_accept4) {
> -            s = accept4(lc->fd, &sa.sockaddr, &socklen, SOCK_NONBLOCK);
> +            s = accept4(lc->fd, &sa.sockaddr, &socklen, SOCK_NONBLOCK |
> SOCK_CLOEXEC);
>          } else {
>              s = accept(lc->fd, &sa.sockaddr, &socklen);
>          }
>
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>

Thank you, but we don't need such sockets behaviour -
we use exactly opposite to pass sockets to new process during
binary upgrade (which is basically fork + exec)
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