I have a new thought on the crashes...I'm able to crash FreeSWITCH any time I like, just by having an exception in a thread.<div><br><div> public class CrashFreeSWITCH : ILoadNotificationPlugin</div><div> {</div>
<div> public bool Load()</div><div> {</div><div> ThreadPool.QueueUserWorkItem((o) => { throw new NotImplementedException(); });</div><div> return true;</div><div> }</div><div>
}</div><div class="gmail_quote"><br></div><div class="gmail_quote">Perhaps <span class="Apple-style-span" style="font-family: Arial; ">Application.ThreadException or AppDomain.UnhandledException need to be trapped?</span></div>
<div class="gmail_quote"><font class="Apple-style-span" face="Arial"><br></font></div><div class="gmail_quote">On Wed, Sep 9, 2009 at 4:51 PM, Michael Giagnocavo <span dir="ltr"><<a href="mailto:mgg@giagnocavo.net">mgg@giagnocavo.net</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div lang="EN-US" link="blue" vlink="purple">
<div><div class="im">
<p>>Looks like the event object goes straight to pinvokes,
so a null result just crashes?</p>
<p> </p>
</div><p>If it’s null, you should get a NullReferenceException.
The C# compiler should callvirt the property getter and that’ll do a null
check. If that isn’t happening, that’d be an interesting
optimization somewhere along the line.</p>
<p> </p>
<p>-Michael </p>
<p><span style="font-size:11.0pt;color:#1F497D"> </span></p>
<p><span style="font-size:11.0pt;color:#1F497D"> </span></p>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in">
<p><b><span style="font-size:10.0pt">From:</span></b><span style="font-size:10.0pt"> <a href="mailto:freeswitch-users-bounces@lists.freeswitch.org" target="_blank">freeswitch-users-bounces@lists.freeswitch.org</a>
[mailto:<a href="mailto:freeswitch-users-bounces@lists.freeswitch.org" target="_blank">freeswitch-users-bounces@lists.freeswitch.org</a>] <b>On Behalf Of </b>Josh
Rivers<br>
<b>Sent:</b> Wednesday, September 09, 2009 3:01 PM</span></p><div class="im"><br>
<b>To:</b> <a href="mailto:freeswitch-users@lists.freeswitch.org" target="_blank">freeswitch-users@lists.freeswitch.org</a><br>
</div><b>Subject:</b> Re: [Freeswitch-users] Subscribing to events in managed C# /
.NET<p></p>
</div><div><div></div><div class="h5">
<p> </p>
<p>A new discovery:</p>
<div>
<div>
<p> public bool Load()</p>
</div>
<div>
<p> {</p>
</div>
<div>
<p>
ThreadPool.QueueUserWorkItem((o) =></p>
</div>
<div>
<p> {</p>
</div>
<div>
<p>
Log.WriteLine(LogLevel.Notice, "Thread Starting. ");</p>
</div>
<div>
<p>
EventConsumer con = new EventConsumer("all", "");</p>
</div>
<div>
<p>
while (true)</p>
</div>
<div>
<p>
{</p>
</div>
<div>
<p>
Event ev = con.pop(0);</p>
</div>
<div>
<p>
if (ev == null) continue;</p>
</div>
<div>
<p>
Log.WriteLine(LogLevel.Notice, "Event: " +
ev.serialized_string);</p>
</div>
<div>
<p>
}</p>
</div>
<div>
<p> });</p>
</div>
<div>
<p> return true;</p>
</div>
<div>
<p> }</p>
</div>
<div>
<p>Does not crash. (Adding the null check prevents crash.) The
backgrounded loop runs fine. Looks like the event object goes straight to
pinvokes, so a null result just crashes?</p>
</div>
<div>
<p> </p>
</div>
<div>
<p>I like the idea of a 'startup-script' for mod_managed. It
would also be excellent if there was an event or message informing the
background code to terminate nicely when the module reloads.</p>
</div>
<div>
<p> </p>
</div>
<div>
<p>--Josh</p>
</div>
<p> </p>
<div>
<p>On Wed, Sep 9, 2009 at 12:57 PM, Jeff Lenk <<a href="mailto:jlenk@frontiernet.net" target="_blank">jlenk@frontiernet.net</a>> wrote:</p>
<p><br>
I think the problem here is that the loader only keeps this method in scope<br>
until completion then it drops the remoted connection. Therefore you should<br>
not use threads in this method. Michael please correct me if I am wrong<br>
here.<br>
<br>
As an example of the failure simply just put a Sleep(10000) call in the<br>
thread and you will see the failure.<br>
<br>
As Michael said this method was only designed to allow the option to opt out<br>
of being loaded.<br>
<br>
In order to support this perhaps a configuration flag simular to the lua<br>
"startup-script" should be added.</p>
<div>
<p style="margin-bottom:12.0pt"><br>
<br>
<br>
Here is the error I get with the loop I mentioned. -Josh<br>
[image: Capture.PNG]<br>
<br>
On Tue, Sep 8, 2009 at 5:05 AM, Michael Giagnocavo<br>
<<a href="mailto:mgg@giagnocavo.net" target="_blank">mgg@giagnocavo.net</a>>wrote:<br>
<br>
> Hi,<br>
><br>
><br>
><br>
> Can you please
elaborate on the crash you receive when you<br>
> queue a thread during load?<br>
><br>
><br>
><br>
> Thanks,<br>
><br>
> Michael<br>
><br>
></p>
</div>
<p><span style="color:#888888">--<br>
View this message in context: <a href="http://n2.nabble.com/Subscribing-to-events-in-managed-C-NET-tp3573619p3613195.html" target="_blank">http://n2.nabble.com/Subscribing-to-events-in-managed-C-NET-tp3573619p3613195.html</a><br>
Sent from the freeswitch-users mailing list archive at Nabble.com.</span></p>
<div>
<div>
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