Re: [Quickfix-developers] Re: Week Long Sessions

[Caleb E. <cal...@gm...>]

On 11/3/05, Michael Holm <mh...@li...> wrote:
>
> I am using the week long session functionality. Our client QuickFix
> application machine is set to EST (UTC+11) and the Fix Engine which I
> connect to is set to UTC. So at 11am (UTC midnight) QuickFix will
> disconnect our connection and we experience ~1 minute downtime while we
> re-sync with the exchange. Our session crosses the UTC midnight barrier.
>
> This line is what is causing the problem:
>
> *return tm1.tm_year =3D=3D tm2.tm_year && tm1.tm_yday =3D=3D tm2.tm_yday;=
*
>

With the latest code in CVS, the following tests pass:

// Michael Holm's test case:

// StartTime and EndTime are 21:00 UTC
start =3D UtcTimeOnly (21, 0, 0);
end =3D UtcTimeOnly (21, 0, 0);

// Sunday -> Friday
int startDay =3D 1; // Sunday
int endDay =3D 6; // Friday

// Check Mon 2005-10-31 00:00:00Z vs. Thu 2005-11-03 00:00:00Z
time1 =3D UtcTimeStamp (0, 0, 0, 31, 10, 2005);
time2 =3D UtcTimeStamp (0, 0, 0, 3, 11, 2005);

assert (SessionTime::isSameSession (start, end, startDay, endDay,
time1, time2));

// Check Mon 2005-10-31 00:00:00Z vs. Thu 2005-11-04 21:00:00Z
time2 =3D UtcTimeStamp (21, 0, 0, 3, 11, 2005);

assert (SessionTime::isSameSession (start, end, startDay, endDay,
time1, time2));

// Check Mon 2005-10-31 00:00:00Z vs. Thu 2005-11-04 21:00:01Z
time2 =3D UtcTimeStamp (21, 0, 1, 3, 11, 2005);

assert (SessionTime::isSameSession (start, end, startDay, endDay,
time1, time2));

// Check Mon 2005-10-31 00:00:00Z vs. Fri 2005-11-04 21:00:00Z
time2 =3D UtcTimeStamp (21, 0, 0, 4, 11, 2005);

assert (SessionTime::isSameSession (start, end, startDay, endDay,
time1, time2));

// Check Mon 2005-10-31 00:00:00Z vs. Fri 2005-11-04 21:00:01Z
time2 =3D UtcTimeStamp (21, 0, 1, 4, 11, 2005);

assert (!SessionTime::isSameSession (start, end, startDay, endDay,
time1, time2));


--
Caleb Epstein
caleb dot epstein at gmail dot com