Hi Peter,<br><br>Source code:<br><div style="margin-left: 40px;">import System.IO<br>import System.Posix<br><br>main = do<br> putStrLn "Waiting for 5 seconds."<br> sleep 5 -- doesn't sleep at all<br>
putStrLn "Done."<br></div><br>OS:<br><div style="margin-left: 40px;">Mac OS X 10.5<br></div><br>Compile command:<br><div style="margin-left: 40px;">ghc --threaded testsleep.hs<br></div><br>If I remove --threaded, then it does sleep.<br>
<br>Thanks,<br><br>-John<br><br><div class="gmail_quote">On Tue, Feb 10, 2009 at 8:59 AM, Peter Verswyvelen <span dir="ltr"><<a href="mailto:bugfact@gmail.com">bugfact@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Hi John,<div><br></div><div>Which sleep are you using? From which module? Can you show the full source with import statements?</div><div><br></div><div>Cheers,<br></div><div><div>Peter</div><div><br><div class="gmail_quote">
2009/2/9 John Ky <span dir="ltr"><<a href="mailto:newhoggy@gmail.com" target="_blank">newhoggy@gmail.com</a>></span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div><div></div><div class="Wj3C7c">Hi Haskell Cafe,<br>
<br>I wrote very short program to sleep for 5 seconds compiled with the -threaded option in ghc on the Mac OS X 1.5.<br><br>I am finding that using the sleep function doesn't sleep at all, whereas using threadDelay does:<br>
<br>main = do<br> putStrLn "Waiting for 5 seconds."<br> threadDelay 5000000 -- works<br> putStrLn "Done."<br><br>main = do<br> putStrLn "Waiting for 5 seconds."<br> sleep 5 -- doesn't sleep at all<br>
putStrLn "Done."<br><br>Anybody know what's happening?<br><br>Thanks<br><font color="#888888"><br>-John<br><br>
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