<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 14 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
{font-family:Consolas;
panose-1:2 11 6 9 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";
color:black;
mso-fareast-language:EN-US;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
pre
{mso-style-priority:99;
mso-style-link:"Pr\00E9format\00E9 HTML Car";
margin:0cm;
margin-bottom:.0001pt;
font-size:10.0pt;
font-family:"Courier New";
color:black;}
span.EmailStyle17
{mso-style-type:personal;
font-family:"Calibri","sans-serif";
color:windowtext;}
span.PrformatHTMLCar
{mso-style-name:"Pr\00E9format\00E9 HTML Car";
mso-style-priority:99;
mso-style-link:"Pr\00E9format\00E9 HTML";
font-family:Consolas;
color:black;
mso-fareast-language:EN-US;}
span.EmailStyle20
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 90.0pt 72.0pt 90.0pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body bgcolor=white lang=FR link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>I already looked at your presentation, the PUSH is send synchronously.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>What I'm trying to achieve is sending the PUSH asynchronously. So, when I receive an incoming call and the callee has no registration, I would like to suspend the transaction and then delegate PUSH sending to another process.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>In your presentation, I see the following:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>route[PUSHASYNC] {<o:p></o:p></span></p><p class=MsoNormal style='text-indent:35.4pt'><span lang=EN-US style='color:#1F497D'>if (!is_method("INVITE"))<o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt;text-indent:35.4pt'><span lang=EN-US style='color:#1F497D'>return;<o:p></o:p></span></p><p class=MsoNormal style='text-indent:35.4pt'><span lang=EN-US style='color:#1F497D'>if(registered("location"))<o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt;text-indent:35.4pt'><span lang=EN-US style='color:#1F497D'>return;<o:p></o:p></span></p><p class=MsoNormal style='text-indent:35.4pt'><span lang=EN-US style='color:#1F497D'>route(SENDPUSH);<o:p></o:p></span></p><p class=MsoNormal style='text-indent:35.4pt'><span lang=EN-US style='color:#1F497D'>if(!t_suspend()) {<o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt;text-indent:35.4pt'><span lang=EN-US style='color:#1F497D'>xlog("failed suspending trasaction [$T(id_index):$T(id_label)]\n");<o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt;text-indent:35.4pt'><span lang=EN-US style='color:#1F497D'>send_reply("501", "Unknown destination");<o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt;text-indent:35.4pt'><span lang=EN-US style='color:#1F497D'>exit;<o:p></o:p></span></p><p class=MsoNormal style='text-indent:35.4pt'><span lang=EN-US style='color:#1F497D'>}<o:p></o:p></span></p><p class=MsoNormal style='text-indent:35.4pt'><span lang=EN-US style='color:#1F497D'>xdbg("suspended transaction [$T(id_index):$T(id_label)] $fU => $rU\n");<o:p></o:p></span></p><p class=MsoNormal style='text-indent:35.4pt'><span lang=EN-US style='color:#1F497D'>$sht(vtp=>join::$rU) = "" + $T(id_index) + ":" + $T(id_label);<o:p></o:p></span></p><p class=MsoNormal style='text-indent:35.4pt'><span lang=EN-US style='color:#1F497D'>xdbg("htale key value [$sht(vtp=>join::$rU)]\n");<o:p></o:p></span></p><p class=MsoNormal style='text-indent:35.4pt'><span lang=EN-US style='color:#1F497D'>exit;<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>}<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>The route block is not execute asynchronously since it is called by the calling block using regular way (i.e. route(PUSHASYNC)). Therefore, all these operations are executed by the same process which is a worker process. I would like to delegate execution of all the route block to a separate process (at least execution of the SENDPUSH route block).<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Mickael<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext;mso-fareast-language:FR'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext;mso-fareast-language:FR'> sr-users [mailto:sr-users-bounces@lists.sip-router.org] <b>On Behalf Of </b>Daniel-Constantin Mierla<br><b>Sent:</b> Thursday, March 19, 2015 10:04 AM<br><b>To:</b> Kamailio (SER) - Users Mailing List<br><b>Subject:</b> Re: [SR-Users] Sending PUSH notification asynchronously<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:12.0pt'>Hello,<br><br>don't do explicit t_suspend() if you are calling the async_task_route() because it is done internally.<br><br>I presented a way for async push notifications during the Kamailio World Conference 2014, see:<br><br> - <a href="http://www.kamailio.org/events/2014-KamailioWorld/day2/26-Daniel-Constantin.Mierla-Kamailio.cfg-Async.pdf">http://www.kamailio.org/events/2014-KamailioWorld/day2/26-Daniel-Constantin.Mierla-Kamailio.cfg-Async.pdf</a><br><br>A video should be also on youtube.<br><br>Cheers,<br>Daniel<o:p></o:p></p><div><p class=MsoNormal>On 19/03/15 08:49, Mickael Marrache wrote:<o:p></o:p></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><p class=MsoNormal>Hi<span lang=EN-US>,</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>I'm trying to add PUSH support to my system using Kamailio.</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>When a call is received and the callee has no active registration, a PUSH is sent to the callee endpoint. In order to send this PUSH, my proxy sends an HTTP requests to another server that will send the PUSH.</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>So, my route block is as follows:</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>route[PUSH] {</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US> #Send PUSH notification using a custom module I wrote</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US> #Suspend transaction execution.</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US> </span>t_on_failure("MANAGE_FAILURE");<o:p></o:p></p><p class=MsoNormal> <span lang=EN-US>if(!t_suspend()) {</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US> send_reply("503", "Service Unavailable");</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US> exit;</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US> }</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US> $sht(push=>join::$rU) = "" + $T(id_index) + ":" + $T(id_label);</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US> exit;</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>}</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>I would like to execute this route block asynchronously (i.e. in a separate process).</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>I tried using the async_task_route command, and I can see the route block is execute in a separate process, however some stuffs are broken (e.g. transaction timeout, failure route). So, I thought it may be related to the fact asynchronous execution is implemented using t_suspend/t_continue and in this case, t_suspend/t_continue would be called twice.</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>The important point is to make the interaction with the PUSH server asynchronous.</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>Any idea?</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>Thanks,</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>Mickael</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";mso-fareast-language:FR'><br><br><br><o:p></o:p></span></p><pre>_______________________________________________<o:p></o:p></pre><pre>SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list<o:p></o:p></pre><pre><a href="mailto:sr-users@lists.sip-router.org">sr-users@lists.sip-router.org</a><o:p></o:p></pre><pre><a href="http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users">http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users</a><o:p></o:p></pre></blockquote><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";mso-fareast-language:FR'><br><br><o:p></o:p></span></p><pre>-- <o:p></o:p></pre><pre>Daniel-Constantin Mierla<o:p></o:p></pre><pre><a href="http://twitter.com/#!/miconda">http://twitter.com/#!/miconda</a> - <a href="http://www.linkedin.com/in/miconda">http://www.linkedin.com/in/miconda</a><o:p></o:p></pre><pre>Kamailio World Conference, May 27-29, 2015<o:p></o:p></pre><pre>Berlin, Germany - <a href="http://www.kamailioworld.com">http://www.kamailioworld.com</a><o:p></o:p></pre></div></body></html>