ize multiple, independent <em>zlib</em> streams, which can
operate in parallel.  The state information maintained in the structure allows the <em>zlib</em>
routines to be reentrant.
<pre><b>
    /* allocate deflate state */
    strm.zalloc = Z_NULL;
    strm.zfree = Z_NULL;
    strm.opaque = Z_NULL;
    ret = deflateInit(&amp;strm, level);
    if (ret != Z_OK)
        return ret;
</b></pre><!-- -->
With the pleasantries out of the way, now we can get down to business.  The outer <tt>do</tt>-loop
reads all o