Re: Suppressing useless wakeups in walreceiver

On Thu, Oct 13, 2022 at 12:09:54PM -0700, Nathan Bossart wrote:
> On Thu, Oct 13, 2022 at 12:37:39PM +0200, Alvaro Herrera wrote:
>> The main reason is that it seems odd to have startpointTLI in the struct
>> used in some places together with a file-global recvFileTLI which isn't.
>> The way one is passed as argument and the other as part of a struct
>> seemed too distracting. This should reduce the number of moving parts,
>> ISTM.
>
> Makes sense. Do you think the struct should be file-global so that it
> doesn't need to be provided as an argument to most of the static functions
> in this file?

Here's a different take. Instead of creating structs and altering function
signatures, we can just make the wake-up times file-global, and we can skip
the changes related to reducing the number of calls to
GetCurrentTimestamp() for now. This results in a far less invasive patch.
(I still think reducing the number of calls to GetCurrentTimestamp() is
worthwhile, but I'm beginning to agree with Bharath that it should be
handled separately.)

Thoughts?

--
Nathan Bossart
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