On Mon, Mar 17, 2008 at 9:50 AM, Hal Vaughan &lt;<a href="mailto:hal@thresholddigital.com">hal@thresholddigital.com</a>&gt; wrote:&nbsp;<div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
...I want to be sure that the monitoring thread<br>
won&#39;t be blocked while data it needs is coming in, but I don&#39;t want that<br>
thread to block the other one while it (the monitoring thread) is waiting<br>
for incoming data.</blockquote><div><br></div></div>If you&#39;re doing synchronous reads and there is no data, then the reading thread will block (e.g. take no cpu cycles) until there is something to read.&nbsp; <br><br>Jon<br>