Re: Introduce WAIT_EVENT_EXTENSION and WAIT_EVENT_BUFFER_PIN

Hi,

On 6/9/23 11:20 AM, Masahiro Ikeda wrote:
> Hi,
>
> On 2023-06-09 13:26, Drouvot, Bertrand wrote:
>> Hi,
>>
>> On 6/9/23 1:15 AM, Michael Paquier wrote:
>>> On Thu, Jun 08, 2023 at 10:57:55AM +0900, Masahiro Ikeda wrote:
>>>> (Excuse me for cutting in, and this is not directly related to the thread.)
>>>> +1. I'm interested in the feature.
>>>>
>>>> This is just a example and it probable be useful for other users. IMO, at
>>>> least, it's better to improve the specification that "Extension"
>>>> wait event type has only the "Extension" wait event.
>>>
>>> I hope that nobody would counter-argue you here.  In my opinion, we
>>> should just introduce an API that allows extensions to retrieve wait
>>> event numbers that are allocated by the backend under
>>> PG_WAIT_EXTENSION, in a fashion similar to GetNamedLWLockTranche().
>>> Say something like:
>>> int GetExtensionWaitEvent(const char *wait_event_name);
>>
>> +1, that's something I've in mind to work on once/if this patch is/get
>> committed.
>
> Thanks for replying. If you are ok, I'll try to make a patch
> to allow extensions to define custom wait events.

Great, thank you!

Regards,

--
Bertrand Drouvot
PostgreSQL Contributors Team
RDS Open Source Databases
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