title: Windows equivalent to Linux's readahead syscall?
body: <p>Is there a Windows equivalent to Linux's readahead syscall?</p>
  
  <p>EDIT:</p>
  
  <p>I would like a full function signature if possible, showing the equivalent offset/count parameters (or lower/upper).</p>
  
  <p>Eg:
  The Linux function signature is:</p>
  
  <pre><code>ssize_t readahead(int fd, off64_t *offset, size_t count);
  </code></pre>
  
  <p>and an example of it's use is</p>
  
  <pre><code>readahead(file, 100, 500);
  </code></pre>
  
  <p>Where "file" is a file descriptor previously set by a function like mmap. This call is reading 500 bytes at index 100.</p>
  
  <p>EDIT 2:
  Please read this if you are unsure what readahead does: <a href="http://linux.die.net/man/2/readahead" rel="noreferrer">http://linux.die.net/man/2/readahead</a></p>