Martin wrote:
On 17/07/2010 13:36, Mark Morgan Lloyd wrote:
I note (now :-) that QueueAsyncCall() works on a strictly LIFO basis,
i.e. it's really a stack rather than a queue.
Has anybody ever built a simple round-robin scheduler based on this,
for example to handle low-speed comms on an indeterminate number of
serial ports?
Which revision of lazarus? IIRC it was very recently changed (corrected)
to FIFO.
0.9.28.3. I saw the discussion from earlier in the year, but I was
specifically considering code that could handle several serial ports
pseudo-concurrently while being able to display messages etc. using
visual controls. Obviously I could go for a full-blooded multithreaded
solution, but async calls work very well for one port at a time...
--
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk
[Opinions above are the author's, not those of his employers or colleagues]
--
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