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PMH / cmmtalk-ye2000 / slide13.htm 

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    <H2>Usage</H2>
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      <TD><code>use Cache::Mmap;</code><BR><code>$cache=Cache::Mmap-&gt;new($filename,\%options);</code>
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      <TD>Loads the module and binds to <code>$filename</code>, creating if it doesn't exist
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      <TD><code>($found,$value1)=$cache-&gt;read($key1);</code>
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      <TD>Fetch value from cache with key <code>$key1</code>
  
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      <TD><code>$found</code> is true if item found in cache or underlying data
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      <TD><code>$cache-&gt;write($key2,$value2);</code>
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      <TD>Update/insert value into cache with key <code>$key2</code>.
  
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      <TD>Update underlying data if appropriate options set
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      <TD><code>$cache-&gt;delete($key3);</code>
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      <TD>Delete cache entry <code>$key3</code> from cache.
  
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      <TD>Update underlying data if appropriate options set
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