Re: [Quickfix-users] Memory Leak - Please help.

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-"We don't know when you are done with the message"<br>
<br>
Isn't the whole point of a garbage collected runtime to deal with this
problem?<br>
<br>
OK, I get that its good form to call Dispose, but why is this required?<br>
<br>
Doesn't Dispose get called when these objects are being garbage
collected?<br>
<br>
<a class="moz-txt-link-abbreviated" href="mailto:or...@qu...">or...@qu...</a> wrote:
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  <div>We don't know when you are done with the message.&nbsp; You need to
call Dispose when you are finished with it.</div>
  <div>&nbsp;</div>
  <div>--oren</div>
  <blockquote
 style="border-left: 2px solid blue; padding-left: 8px; margin-left: 8px;"
 webmail="1">-------- Original Message --------<br>
Subject: [Quickfix-users] Memory Leak - Please help.<br>
From: "Sam Smith" <a class="moz-txt-link-rfc2396E" href="mailto:sa...@if...">&lt;sa...@if...&gt;</a><br>
Date: Thu, March 20, 2008 6:37 am<br>
To: &lt;<a moz-do-not-send="true"
 href="mailto:qui...@li...urceforge">qui...@li...urceforge</a>.net&gt;<br>
    <br>
QuickFIX Documentation: <a moz-do-not-send="true"
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    <div><font face="Arial" size="2"><span
 style="font-size: 10pt; font-family: Arial;">Hi,<o:p></o:p></span></font></div>
    <div><font face="Arial" size="2"><span
 style="font-size: 10pt; font-family: Arial;"><o:p>&nbsp;</o:p></span></font></div>
    <div><font face="Arial" size="2"><span
 style="font-size: 10pt; font-family: Arial;">I am reasonably new to
QuickFix and I have a problem. I have been asked to look at part of a
C# application using the .Net QuickFixEngine library.<o:p></o:p></span></font></div>
    <div><font face="Arial" size="2"><span
 style="font-size: 10pt; font-family: Arial;"><o:p>&nbsp;</o:p></span></font></div>
    <div><font face="Arial" size="2"><span
 style="font-size: 10pt; font-family: Arial;">My problem is that the
application seems to have substantial memory leak.<o:p></o:p></span></font></div>
    <div><font face="Arial" size="2"><span
 style="font-size: 10pt; font-family: Arial;"><o:p>&nbsp;</o:p></span></font></div>
    <div><font face="Arial" size="2"><span
 style="font-size: 10pt; font-family: Arial;">Looking at the
application using a .Net memory profiler, it looks like a lot of
QuickFix objects are hanging around in memory. It looks like the .Net
code is releasing all references to the objects, but some unmanaged
code is retaining a reference.<o:p></o:p></span></font></div>
    <div><font face="Arial" size="2"><span
 style="font-size: 10pt; font-family: Arial;"><o:p>&nbsp;</o:p></span></font></div>
    <div><font face="Arial" size="2"><span
 style="font-size: 10pt; font-family: Arial;">Am I missing something
obvious? Should the developers who wrote it have been calling a
.Dispose method or delete or something on these objects? One major
source of the leak seems to come from messages that are created by the
unmanaged C++ library and passed into our managed code. When our
managed code finishes with them they do not seem to get cleaned up.<o:p></o:p></span></font></div>
    <div><font face="Arial" size="2"><span
 style="font-size: 10pt; font-family: Arial;"><o:p>&nbsp;</o:p></span></font></div>
    <div><font face="Arial" size="2"><span
 style="font-size: 10pt; font-family: Arial;">Please help.<o:p></o:p></span></font></div>
    <div><font face="Arial" size="2"><span
 style="font-size: 10pt; font-family: Arial;"><o:p>&nbsp;</o:p></span></font></div>
    <div><strong><b><font face="Arial" size="2"><span
 style="font-size: 10pt; font-family: Arial;">Sam Smith</span></font></b></strong><o:p></o:p></div>
    <div><font face="Arial" size="2"><span
 style="font-size: 10pt; font-family: Arial;">Developer / Infrastructure</span></font><o:p></o:p></div>
    <div><font face="Arial" size="2"><span
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Systems</span></font><o:p></o:p></div>
    <div><font face="Arial" size="2"><span
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    <div><font face="Times New Roman" size="3"><span
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    <div><font face="Arial" size="2"><span
 style="font-size: 10pt; font-family: Arial;">Telephone 020 7379 7328</span></font><o:p></o:p></div>
    <div><font face="Arial" size="2"><span
 style="font-size: 10pt; font-family: Arial;">Fax 020 7379 7329</span></font><o:p></o:p></div>
    <div><font face="Times New Roman" size="3"><span
 style="font-size: 12pt;"><o:p>&nbsp;</o:p></span></font></div>
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