Re: Threading in BGWorkers (!)

On Tue, 23 Jun 2020 at 17:15, James Sewell <james(dot)sewell(at)jirotech(dot)com>
wrote:

> Using multithreading in bgworker is possible if you do not use any
>> Postgres runtime inside thread procedures or do it in exclusive critical
>> section.
>> It is not so convenient but possible. The most difficult thing from my
>> point of view is error reporting.
>>
>
> Happy to be proved wrong, but I don't think this is correct.
>
> PostgreSQL can call sigprocmask() in your BGWorker whenever it wants, and
> "The use of sigprocmask() is unspecified in a multithreaded process" [1]
>
> [1] https://pubs.opengroup.org/onlinepubs/9699919799/
>

Sorry link should be [1]
https://pubs.opengroup.org/onlinepubs/9699919799/functions/sigprocmask.html

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