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From: Vladimir Davydov <vdavydov.dev@gmail.com>
To: Vladislav Shpilevoy <v.shpilevoy@tarantool.org>
Cc: tarantool-patches@freelists.org
Subject: Re: [PATCH 08/11] coio: fix double close of a file descriptor
Date: Mon, 3 Dec 2018 19:19:50 +0300	[thread overview]
Message-ID: <20181203161950.2eusd6vxj5zejeof@esperanza> (raw)
In-Reply-To: <a1bf40c47ea240862340686380536358375bc101.1543590433.git.v.shpilevoy@tarantool.org>

On Fri, Nov 30, 2018 at 06:39:40PM +0300, Vladislav Shpilevoy wrote:
> coio_service_on_accept is called by evio by an
> on_accept pointer. If evio obtains not zero from
> on_accept pointer, it closes accepted socket. But
> coio_service_on_accept closes it too, when fiber_new
> fails. It is double close.
> 
> Note that the bug existed even when on_accept was able
> to throw.
> ---
>  src/coio.cc | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/src/coio.cc b/src/coio.cc
> index 575bae712..a888a54dd 100644
> --- a/src/coio.cc
> +++ b/src/coio.cc
> @@ -605,9 +605,6 @@ coio_service_on_accept(struct evio_service *evio_service,
>  {
>  	struct coio_service *service = (struct coio_service *)
>  			evio_service->on_accept_param;
> -	struct ev_io coio;
> -
> -	coio_create(&coio, fd);
>  
>  	/* Set connection name. */
>  	char fiber_name[SERVICE_NAME_MAXLEN];
> @@ -619,9 +616,10 @@ coio_service_on_accept(struct evio_service *evio_service,
>  	if (f == NULL) {
>  		diag_log();
>  		say_error("can't create a handler fiber, dropping client connection");
> -		evio_close(loop(), &coio);
>  		return -1;
>  	}
> +	struct ev_io coio;
> +	coio_create(&coio, fd);
>  	/*
>  	 * The coio is passed into the created fiber, reset the
>  	 * libev callback param to point at it.

I see now that you remove an extra close() from coio_service_on_accept
in a separate patch. This is OK, but then please remove an extra close()
from iproto_on_accept in the same patch, not in patch 6, where you make
on_accept exception free.

  reply	other threads:[~2018-12-03 16:19 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-30 15:39 [PATCH 00/11] SWIM preparation Vladislav Shpilevoy
2018-11-30 15:39 ` [PATCH 01/11] box: move info_handler interface into src/info Vladislav Shpilevoy
2018-12-03 11:05   ` Vladimir Davydov
2018-12-03 21:48     ` [tarantool-patches] " Vladislav Shpilevoy
2018-12-03 20:41   ` [tarantool-patches] " Konstantin Osipov
2018-12-03 21:48     ` [tarantool-patches] " Vladislav Shpilevoy
2018-12-04  8:52       ` Vladimir Davydov
2018-11-30 15:39 ` [PATCH 10/11] evio: remove exceptions Vladislav Shpilevoy
2018-11-30 15:39 ` [PATCH 11/11] evio: turn into C Vladislav Shpilevoy
2018-11-30 15:39 ` [PATCH 02/11] sio: remove unused functions, restyle code Vladislav Shpilevoy
2018-12-03 12:28   ` Vladimir Davydov
2018-12-04 21:29     ` [tarantool-patches] " Vladislav Shpilevoy
2018-12-05  8:41       ` Vladimir Davydov
2018-11-30 15:39 ` [PATCH 03/11] sio: remove exceptions Vladislav Shpilevoy
2018-12-03 12:36   ` Vladimir Davydov
2018-12-04 21:29     ` [tarantool-patches] " Vladislav Shpilevoy
2018-12-05  8:42       ` Vladimir Davydov
2018-11-30 15:39 ` [PATCH 04/11] sio: fix passing negative size_t to sio_add_to_iov Vladislav Shpilevoy
2018-12-03 13:50   ` Vladimir Davydov
2018-12-04 21:29     ` Vladislav Shpilevoy
2018-12-05  8:48       ` Vladimir Davydov
2018-11-30 15:39 ` [PATCH 05/11] sio: turn into C Vladislav Shpilevoy
2018-11-30 15:39 ` [PATCH 06/11] evio: make on_accept be nothrow Vladislav Shpilevoy
2018-12-03 14:58   ` Vladimir Davydov
2018-12-04 21:29     ` [tarantool-patches] " Vladislav Shpilevoy
2018-12-05  8:52       ` Vladimir Davydov
2018-11-30 15:39 ` [PATCH 07/11] coio: fix file descriptor leak on accept Vladislav Shpilevoy
2018-12-03 16:16   ` Vladimir Davydov
2018-12-04 21:29     ` [tarantool-patches] " Vladislav Shpilevoy
2018-11-30 15:39 ` [PATCH 08/11] coio: fix double close of a file descriptor Vladislav Shpilevoy
2018-12-03 16:19   ` Vladimir Davydov [this message]
2018-12-04 21:29     ` [tarantool-patches] " Vladislav Shpilevoy
2018-11-30 15:39 ` [PATCH 09/11] evio: refactoring Vladislav Shpilevoy
2018-12-03 16:37   ` Vladimir Davydov
2018-12-04 21:29     ` [tarantool-patches] " Vladislav Shpilevoy
2018-12-03  9:47 ` [PATCH 00/11] SWIM preparation Vladimir Davydov
2018-12-03 10:27   ` [tarantool-patches] " Vladislav Shpilevoy

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