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Re: Add client connection check during the execution of the query - Mailing list pgsql-hackers

From Thomas Munro
Subject Re: Add client connection check during the execution of the query
Date
Msg-id CA+hUKGL8rmZ5eJ8hrf6La8K0H8jXgReL=hH9OXDpY368sAqOMQ@mail.gmail.com
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In response to Re: Add client connection check during the execution of the query  (Zhihong Yu <zyu@yugabyte.com>)
Responses Re: Add client connection check during the execution of the query  (Zhihong Yu <zyu@yugabyte.com>)
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On Sat, Jun 12, 2021 at 8:31 PM Zhihong Yu <zyu@yugabyte.com> wrote:
> +#ifdef POLLRDHUP
> +           if ((cur_event->events & WL_SOCKET_CLOSED) &&
> +               (cur_pollfd->revents & (POLLRDHUP | errflags)))
>
> It seems the last condition above should be written as:
>
> ((cur_pollfd->revents & POLLRDHUP) | (cur_pollfd->revents & errflags))

Hi Zhihong,

Why?  Isn't (A & B) | (A & C) is the same as A & (B | C)?

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