| From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> | 
|---|---|
| To: | Joe Conway <mail(at)joeconway(dot)com> | 
| Cc: | Denis A Ustimenko <denis(at)oldham(dot)ru>, pgsql-hackers(at)postgresql(dot)org | 
| Subject: | Re: droped out precise time calculations in src/interfaces/libpq/fe-connect.c | 
| Date: | 2002-10-14 05:48:41 | 
| Message-ID: | 200210140548.g9E5mf826940@candle.pha.pa.us | 
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| Lists: | pgsql-hackers | 
Joe Conway wrote:
> Bruce Momjian wrote:
> > So, this is what needs to be dealt with to get it working.
> > 
> 
> More to the point, why is sub-second precision needed in this function? 
> Connection timeout is given to us in whole seconds (1.205 code, i.e. prior to 
> the patch in question):
> 
>       remains.tv_sec = atoi(conn->connect_timeout);
>       if (!remains.tv_sec)
>       {
>           conn->status = CONNECTION_BAD;
>           return 0;
>       }
>       remains.tv_usec = 0;
>       rp = &remains;
> 
> So there is no way to bail out prior to one second. Once you accept that the 
> timeout is >= 1 second, and in whole second increments, why does it need 
> sub-second resolution?
It could be argued that our seconds are not as exact as they could be
with subsecond timing.  Not sure it is worth it, but I can see the
point.  I would like to remove the tv_usec test because it suggests we
are doing something with microseconds when we are not.  Also, should we
switch to a simple time() call, rather than gettimeofday()?
-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman(at)candle(dot)pha(dot)pa(dot)us               |  (610) 359-1001
  +  If your life is a hard drive,     |  13 Roberts Road
  +  Christ can be your backup.        |  Newtown Square, Pennsylvania 19073
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