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latch spining... in user mode or kernel mode ?

From: danisment <danisment_at_yahoo.com>
Date: 16 Nov 2001 04:16:12 -0800
Message-ID: <2c78cfac.0111160416.2c1d0d5e@posting.google.com> 





Hi,



I want to know how spinning is implemented on CPU . is it in kernel
mode, or user mode ?



can we say following pseudo code is correct ?



private int i = 0;


while (i < _SPIN_COUNT)


  {


    if (test_and_set(latch) == true) return true; // latch is acquired
here...


    i++;


  }   



Danisment Gazi Unal


http://www.unal-bilisim.com
Received on Fri Nov 16 2001 - 06:16:12 CST












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