Re: Restart pg_usleep when interrupted - Mailing list pgsql-hackers

From Nathan Bossart
Subject Re: Restart pg_usleep when interrupted
Date
Msg-id ZrOGi8RZTSHxTq9W@nathan
Whole thread Raw
In response to Re: Restart pg_usleep when interrupted  (Bertrand Drouvot <bertranddrouvot.pg@gmail.com>)
Responses Re: Restart pg_usleep when interrupted
Re: Restart pg_usleep when interrupted
List pgsql-hackers
On Wed, Aug 07, 2024 at 06:00:53AM +0000, Bertrand Drouvot wrote:
> +        SleepEx((microsec < 500 ? 1 : (microsec + 500) / 1000), FALSE);

I think this deserves a comment.

> +#define INSTR_TIME_ADD_MICROSEC(x,t) \
> +    ((x).ticks += t * NS_PER_US)

I'd add parentheses around "t" to ensure any expressions given as "t" are
evaluated first.

Also, do we need to worry about overflow here?  It looks like the rest of
instr_time.h is oblivious about overflow, so maybe this is better discussed
in a separate thread...

-- 
nathan



pgsql-hackers by date:

Previous
From: Bertrand Drouvot
Date:
Subject: Re: Restart pg_usleep when interrupted
Next
From: "Vitaly Davydov"
Date:
Subject: Re: Fsync (flush) all inserted WAL records