<div dir="ltr"><div class="gmail_default" style="font-size:small;color:#000000">1. Yes.</div><div class="gmail_default" style="font-size:small;color:#000000"><br></div><div class="gmail_default" style="font-size:small;color:#000000">
2. The underlying connection is TCP, which is of course ordered. The mechanism that triggers the user callbacks is single-threaded (thus you need to make sure you don't do time-expensive operations in the callbacks).</div>
</div><div class="gmail_extra"><br><br><div class="gmail_quote">On Thu, Mar 13, 2014 at 10:20 AM, George Stevens <span dir="ltr"><<a href="mailto:gstevens@wipcode.com" target="_blank">gstevens@wipcode.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div style="font-size:12pt;font-family:Calibri,Arial,Helvetica,sans-serif">
<p>Hi,</p>
<p>I'm new to QuickFIX/n. I need to know:</p>
<p><br>
</p>
<p>1. Does QuickFIX/n guarantee that the time ordering of incoming messages is perserved?
</p>
<p><br>
</p>
<p>In other words, if Joe sends a Buy 100 shares of IBM, then sends Sell 100 shares of IBM immediately thereafter, and I guaranteed that my app will ALWAYS receive the messages in this order?</p>
<p><br>
</p>
<p>2. If so, how is this implemented?</p>
<p><br>
</p>
<p>Thanks in advance,</p>
<p>gstevens<br>
</p>
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<p><br>
</p>
<div name="divtagdefaultwrapper" style="font-family:calibri,arial,helvetica,sans-serif;margin:0px">
<font size="3" face="Calibri,Arial,Helvetica,sans-serif" color="black"><span style="font-size:12pt"><font face="Calibri,Arial,Helvetica,sans-serif">
<div style="margin-top:0px;margin-bottom:0px"><font face="Calibri,Arial,Helvetica,sans-serif"><b>George Stevens<br>
</b></font></div>
<div style="margin-top:0px;margin-bottom:0px"><font>sr. software engineer & architect<br>
</font></div>
<div style="margin-top:0px;margin-bottom:0px"> </div>
<div style="margin-top:0px;margin-bottom:0px"><font color="#FF6600"><b><i>WIP</i></b></font><font color="#FF6600"><i>code</i></font></div>
<div style="margin-top:0px;margin-bottom:0px"><a href="mailto:ptidwell@wipcode.com" target="_blank"><font>gstevens@wipcode.com</font></a></div>
<div style="margin-top:0px;margin-bottom:0px"><font><a href="tel:762-233-4436" value="+17622334436" target="_blank">762-233-4436</a></font></div>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div><font><span style="background-color:#000000"><span style="background-color:#ffffff">Grant Birchmeier</span></span></font><font><font color="#3333ff"><br>
</font></font></div><div><font><b><font color="#3333ff"><span style="background-color:#ffcc33"><span style="background-color:#ffcc66"><span style="background-color:#ffcc99"><span style="background-color:#ffffff"><span style="background-color:#ffcc00">Connamara Systems, LLC</span></span></span></span></span></font></b></font><br>
</div><div><font><b>Made-To-Measure Trading Solutions.</b></font></div><div><font>Exactly what you need. No more. No less.</font><font><b><font color="#3333ff"><br></font></b></font></div><div><font><a href="http://connamara.com" target="_blank">http://connamara.com</a><br>
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