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BJARKE CHRISTESEN (d96bc@novell02.sdrborges.dk)
Wed, 26 Nov 1997 09:05:31 +0100 

From: "BJARKE CHRISTESEN" <d96bc@novell02.sdrborges.dk>
Date: Wed, 26 Nov 1997 09:05:31 +0100
Subject: Synchronisation in msql
Message-ID: <2ED0C0054A@novell02.sdrborges.dk>

Hello

I am a student at advanced computer Studies, and we are using msql in
a project. Now have to show, how there is taken care of
synchronisation problems (readers/writers). Since I don't get any
Answer from Hughes, I guess there may be somebody ou here who has an
idea about where to get some material.

Greetinrgs
Bjarke Christesen
d96bc@novell02.sdrborges.dk

Bjarke Christesen
d96bc@novell02.sdrborges.dk

//In a world without fences,
//who the hell needs Gates ????
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Hi,

does anyone know if Lite supports the AND'ing of values(to find if a
spesific bit is set)?

I have not found any way, and had to make a function wich does it.

A call to the function like and(63,2) would return 1 if the second bit
is set.(or what is the numbering convetion for bit's - are the second
last one the 2'nd bit, or what?)

Comments are very welcome:

funct and(int $val, int $bit)
{
  $i = 1;
  while ($i < $val)
  {
   $i = $i * 2;
  }

  while ($i >= $bit)
  {
     if ($val >= $i)
     {
        $val=$val-$i;
        $res = 1;
     }
     else
     {
        $res = 0;
     }

     $i = $i / 2;

  } /* end while */

  return ($res);

} /* end funct */