<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 12 (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;}
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:"HTML con formato previo Car";
margin:0cm;
margin-bottom:.0001pt;
font-size:10.0pt;
font-family:"Courier New";
color:black;}
span.EstiloCorreo17
{mso-style-type:personal;
font-family:"Calibri","sans-serif";
color:#1F497D;}
span.HTMLconformatoprevioCar
{mso-style-name:"HTML con formato previo Car";
mso-style-priority:99;
mso-style-link:"HTML con formato previo";
font-family:Consolas;
color:black;}
span.EstiloCorreo20
{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:70.85pt 3.0cm 70.85pt 3.0cm;}
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=ES link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>Good morning Daniel.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>I cannot test this issue because I have no means, so I deduce what’s happening, and of course I could be mistaken.<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'>1.- First BYE received, first listening process: dlg_onroute -><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'> /* run state machine */<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'> switch ( req->first_line.u.request.method_value ) {<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'> case METHOD_PRACK:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'> event = DLG_EVENT_REQPRACK; break;<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'> case METHOD_ACK:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'> event = DLG_EVENT_REQACK; break;<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'> case METHOD_BYE:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'> event = DLG_EVENT_REQBYE; break;<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'> default:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'> event = DLG_EVENT_REQ;<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'> next_state_dlg( dlg, event, &old_state, &new_state, &unref); <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>----------------------------------------------------------------------------------------> new_state: DLG_STATE_DELETED ; old_state:</span><span lang=EN-US> </span><span lang=EN-US style='color:#1F497D'>DLG_STATE_CONFIRMED<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'>2.- Second BYE received, second listening process: dlg_onroute -><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'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'> /* run state machine */<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'> switch ( req->first_line.u.request.method_value ) {<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'> case METHOD_PRACK:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'> event = DLG_EVENT_REQPRACK; break;<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'> case METHOD_ACK:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'> event = DLG_EVENT_REQACK; break;<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'> case METHOD_BYE:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'> event = DLG_EVENT_REQBYE; break;<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'> default:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'> event = DLG_EVENT_REQ;<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'> next_state_dlg( dlg, event, &old_state, &new_state, &unref); <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>----------------------------------------------------------------------------------------> new_state: DLG_STATE_DELETED ; old_state: DLG_STATE_DELETED<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'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>done:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'> dlg_release(dlg); ---> before first process related callbacks are executed by other processes like acc_cdr.c<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'> return;<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'>Thanks and best regards.<o:p></o:p></span></p><div><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'>Eduardo Lejarreta.<o:p></o:p></span></p></div><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'>De:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'> sr-dev-bounces@lists.sip-router.org [mailto:sr-dev-bounces@lists.sip-router.org] <b>En nombre de </b>Daniel-Constantin Mierla<br><b>Enviado el:</b> martes, 04 de junio de 2013 15:39<br><b>Para:</b> Kamailio (SER) - Development Mailing List<br><b>Asunto:</b> Re: [sr-dev] Dialog onroute requests.<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,<o:p></o:p></p><div><p class=MsoNormal>On 6/4/13 3:14 PM, Eduardo Lejarreta wrote:<o:p></o:p></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><p class=MsoNormal><span style='color:#1F497D'>Good evening.</span><o:p></o:p></p><p class=MsoNormal><span style='color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Playing with latest “dialog module” versions (3.2, 3.3 and 4.0) I think there could be an open “issue” with regard to dialog state management. </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>You can see on “dlg_handlers.c” on “dlg_onroute” function. On this last when you receive a BYE message it fires some CallBacks.</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>I you receive a close second BYE, this last one destroys the dialog because “dlg_release” function is called from a parallel process avoiding the other processes callback execution.</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>I know a second BYE it’s not a normal circumstance but you know, the real world …</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>I think dialog_ng doesn’t have this issue but also it has no DB support.</span><o:p></o:p></p></blockquote><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>can you give more specific details, like the lines of code you think may have an open issue? A quick check, it seems dialog and dialog_ng have the same processing of BYE request in dlg_onroute() and unref is done only on transition state to terminate.<br><br><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>Cheers,<br>Daniel<br><br><o:p></o:p></span></p><pre>-- <o:p></o:p></pre><pre>Daniel-Constantin Mierla - <a href="http://www.asipto.com">http://www.asipto.com</a><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 Advanced Training, San Francisco, USA - June 24-27, 2013<o:p></o:p></pre><pre> * <a href="http://asipto.com/u/katu">http://asipto.com/u/katu</a> *<o:p></o:p></pre></div></body></html>