As the program below illustrates on OS X, threads (and eventspaces and ...) stop when a file dialog is open. I'm guessing that places can fix this, by actually putting something in another thread. Is there any chance that GRacket2 will fix this magically?
John
#lang racket
(require racket/gui)
(parameterize ([current-eventspace (make-eventspace)])
(queue-callback
(lambda ()
(let loop ()
(printf "abc\n")
(sleep 1)
(loop)))))
smime.p7s
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