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Article #9596

Re: Sleep() funtion in XP

#9596
From: Francisco Villa
Date: Tue, 22 Jun 2004 08:35
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"Martin Nijhoff" <dont@mail.me> escribi๏ฟฝ en el mensaje
news:40d7ecf1$1@newsgroups.borland.com...
> Hi Francisco,
>
> When your thread calls Sleep(), it suspends execution of your thread for
the
> specified interval so that another thread can resume execution. However,
> there is no guarantee that your thread is resumed *exactly* at the moment
> the interval expires, especially when you call Sleep() with a small
interval
> value (3 milliseconds in your case).
>
> You could try the following code to work around this:
>
> MyPort->Write(myByte);
> for (DWORD StartTime = GetTickCount(); GetTickCount() - StartTime < 3; );
>
> Hope this helps,
>
> Martin
>
>


Oooops . I forget to tell that i tried it too with this version of Sleep.

void SleepB (DWORD t)
{

  DWORD StartTime =GetTickCount();
  n=0;
  while (GetTickCount()- StartTime < t)
       {
        n++;
       }
}

But It  DELAYS 15 ms or 16 ms too!?!?

I undersatand that the thread suspend execution but there is much diference.

However this method consumes too much CPU %.
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Subject: Re: Sleep() funtion in XP
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