I just tried this program: #lang racket/base (define times '()) (define start (current-inexact-milliseconds)) (for ([x (in-range 10)]) (set! times (cons (- (current-inexact-milliseconds) start) times)) (sleep 0.01))
and times was bound to: '(90.0 80.0 70.0 60.0 50.0 40.0 30.0 20.0 10.0 0.0) so hopefully that suggests that whatever you read was wrong. Speaking of which, I couldn't find that in the docs. Where did you read that? Robby On Fri, Feb 17, 2012 at 8:04 AM, Rüdiger Asche <r...@ruediger-asche.de> wrote: > according to the Racket docs, the smallest amount of time a thread can be > put to sleep is 1 second. I need a finer granularity than that... if I had > access to the thread priority, I might just have the thread poll the timer > on low priority, but I haven't found a way to do that. > > What I need to do eventually is call some (simple, mutual exclusion is not > an issue) code periodically but in a complex application context. I can't > rely on the application to do that cooperatively, so it must take place in a > secondary thread, but the period must be smaller than a second (ideally I > would be able to go down to millisecond granularity but if necessary > something like 50 ms would suffice). > > Any ideas how to accomplish that? > > Thanks! > > > ____________________ > Racket Users list: > http://lists.racket-lang.org/users ____________________ Racket Users list: http://lists.racket-lang.org/users
