Re: Am I doing this right?
- From: GhostInAK <ghostinak@xxxxxxxxx>
- Date: Tue, 15 Aug 2006 22:13:48 +0000 (UTC)
Hello Buc,
Is there somereason you dont just push the data direct to the DB? What's the Queue for?
-Boo
I have an simple app that pulls UDP socket packets off a network,
places
that packet data in a structure, and places the structure into a
vb.net
Queue (use enqueue. and dequeue). Writes queue to SQL server
In the form I have global decl.
PUBLIC DataQueue as NEW QUEUE
PUBLIC STRUCTURE myDataStruct (add some elements)
In my ONRECEIVEI place the buffer data into myDataStruct and
DataQueue.Enqueue(myDataStruct).
I also have a 100ms timer that does this:
dim tmpStruct as NEW myDataStruct
tmpStruct = DataQueue.Dequeue()
write tmpStruct to SQL
I've got a bool flag in the timer routine to keep it from running
again
until it finishes everthing
Is there any kind of conflict that can occur here?
If OnReceive fires and enqueues while timer is dequeueing?
Some sort of deadlock???
I debug.writeline when enqueueing to assure what goes in the queue,
but
sometimes when I dequeue the data it has a value from another packet
(scrambled), though the enqueue showed fine. Happens rarely but does
happen.
I don't quite understand how the OS executes the code, reading and
writing
at what 'I guess' is the same time to that queue sometimes.
Is the scenerio above OK to use or is there a better solution (more
stable)
than what I am doing?
Thanks
BUC
.
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