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Sleep issues

 
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pjc30943



Joined: 02 Dec 2005
Posts: 220
Posted: 05 February 2008, 4:57 AM    Post subject: Sleep issues Reply with quote
Anyone else experience problems with calling sleep with longer time lengths?

For example, sleep 500.0 will cause a delay much shorter than 500s.

Is there an upper limit?
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mikep



Joined: 24 Sep 2005
Posts: 765
Location: Austin, TX
Posted: 05 February 2008, 5:28 AM    Post subject: Re: Sleep issues Reply with quote
pjc30943 wrote:
For example, sleep 500.0 will cause a delay much shorter than 500s.

Is there an upper limit?

Yes. If you look at sleep() it takes an unsigned integer - 16 bits. Each tick is 1/512 of a second. Therefore the maximum sleep time is 65536/512 = 128 seconds.
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pjc30943



Joined: 02 Dec 2005
Posts: 220
Posted: 05 February 2008, 5:51 AM    Post subject: Re: Sleep issues Reply with quote
mikep wrote:

Yes. If you look at sleep() it takes an unsigned integer - 16 bits. Each tick is 1/512 of a second. Therefore the maximum sleep time is 65536/512 = 128 seconds.


Ah. Of course... Thank you.
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