Re: BUG #1467: fe_connect doesn't handle EINTR right

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От Bruce Momjian
Тема Re: BUG #1467: fe_connect doesn't handle EINTR right
Дата
Msg-id 200512081553.jB8Fr2K16961@candle.pha.pa.us
обсуждение исходный текст
Ответ на BUG #1467: fe_connect doesn't handle EINTR right  ("Florian Hars" <hars@bik-gmbh.de>)
Список pgsql-bugs
I think this has been corrected in 8.1.

---------------------------------------------------------------------------

Florian Hars wrote:
>
> The following bug has been logged online:
>
> Bug reference:      1467
> Logged by:          Florian Hars
> Email address:      hars@bik-gmbh.de
> PostgreSQL version: 8.0.1
> Operating system:   All
> Description:        fe_connect doesn't handle EINTR right
> Details:
>
> The file pgsql/src/interfaces/libpq/fe-connect.c contains the code fragment
>
> retry_connect:
>   if (connect(conn->sock, addr_cur->ai_addr,
>                       addr_cur->ai_addrlen) < 0)
>   {
>     if (SOCK_ERRNO == EINTR)
>     /* Interrupted system call - just try again */
>         goto retry_connect;
>   }
>
> This is not in accordance with a strict legalistic reading of the POSIX
> spec, according to which connect is not restartable so that you have to use
> select or poll after connect returned with EINTR.
>
> See
> http://www.eleves.ens.fr:8080/home/madore/computers/connect-intr.html
> for the ugly details, your code should work on Linux, but not on Solaris or
> (Free|Open)BSD.
>
> ---------------------------(end of broadcast)---------------------------
> TIP 4: Don't 'kill -9' the postmaster
>

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