Re: get_controlfile() can leak fds in the backend

Hi,

On 2019-02-27 10:23:45 +0100, Fabien COELHO wrote:
> However, while at it, there is also the question of whether the control file
> should be locked when updated, eg with flock(2) to avoid race conditions
> between concurrent commands. ISTM that there is currently not such thing in
> the code, but that it would be desirable.

Shouldn't be necessary - the control file fits into a single page, and
writes of that size ought to always be atomic. And I also think
introducing flock usage for this would be quite disproportional.

Greetings,

Andres Freund