When using a timeout, you are promised a nil event after a max of the
timeout value. nil events are generated for many other reasons (especially
in POSE). Your nil event handler needs to check the actual elapsed time and
do another netLibSelect with a (possibly) smaller timeout value
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of
Sally-Anne Palmer
Sent: Thursday, February 15, 2001 18:02
To: Palm Developer Forum
Cc: '[EMAIL PROTECTED]'
Subject: NetLibSelect timeout not working.
I'm using NetLibSelect to process commands from the socket connection and
also user events is the following way. However, the timeout value for
NetLibSelect does not seem to be working. When I'm not receiving any events
from the network or user events it's supposed to wait 6 seconds and then
wake up and send a nilEvent, after this has happened 10 times I want to do
some stuff. However it does not seem to wait at all but rather I just seem
to continually receive nilEvents with no respect to the timeout value. I
know that this is the behavior on POSE because it doesn't work in the proper
way but even on the device it does not seem to be working but rather,
continually sending nilEvents rather than waiting 5 seconds. Does anyone
have any ideas about why it doesn't seem to be working and how to get the
timeout to work? I'm running it on a PalmVx connected to a server on
Windows 2000.
thanks,
Sally-Anne.
-----------------------------------------------------------------------
FD_ZERO(&fds);
FD_SET(sysFileDescStdIn, &fds); // system events
FD_SET(lSocket, &fds); // socket data available
lSelectTimeout = SysTicksPerSecond()*6
lMaxTimeouts = 10;
lTimeouts = 0;
Int16 lSelectResult = NetLibSelect(AppNetRefnum, lWidth, &fds, NULL,
NULL, lSelectTimeout, &lError);
if (lSelectResult < 0)
{
ErrorLog::reportPalmOsError(lError, "Select failed.");
}
else if (FD_ISSET(lSocket, &fds))
{
// process stuff from socket
processSocket();
}
else
{
// process event from event queue
EvtGetEvent(&lEvent, 1);
if (lEvent.eType != nilEvent)
{
if (!preprocessEvent(&lEvent))
{
if (!SysHandleEvent(&lEvent))
{
if (!MenuHandleEvent(0, &lEvent, &lError))
{
if (!applicationHandleEvent(&lEvent))
{
FrmDispatchEvent(&lEvent);
}
}
}
}
}
else
{
// in idle time
lTimeouts++;
if (lTimeouts == lMaxTimeouts)
// do some stuff
lTimeouts = 0;
}
}
}
}
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