[Haskell-cafe] Progress indications
andrewcoppin at btinternet.com
Fri Nov 30 14:25:49 EST 2007
Brandon S. Allbery KF8NH wrote:
> On Nov 29, 2007, at 17:13 , Thomas Hartman wrote:
>> but there's no risk using trace is there?
> If you're doing any other I/O, you may be surprised by where the trace
> output shows up relative to it.
How about if the "I/O" is to write to a different stream? Then it
wouldn't matter too much. Or perhaps updating a real progress bar widget
on a GUI. Or - better still - frobnicate an MVar or something. (Then you
can handle what you do with these "update" signals somewhere else
without cluttering the main algorithm too much...)
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