<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML xmlns="http://www.w3.org/TR/REC-html40" xmlns:v = "urn:schemas-microsoft-com:vml" xmlns:o = "urn:schemas-microsoft-com:office:office" xmlns:w = "urn:schemas-microsoft-com:office:word"><HEAD> <META http-equiv=Content-Type content="text/html; charset=us-ascii"> <META content="MSHTML 6.00.2900.3395" name=GENERATOR> <STYLE>@font-face { font-family: Tahoma; } @page Section1 {size: 8.5in 11.0in; margin: 1.0in 1.25in 1.0in 1.25in; } P.MsoNormal { FONT-SIZE: 12pt; MARGIN: 0in 0in 0pt; FONT-FAMILY: "Times New Roman" } LI.MsoNormal { FONT-SIZE: 12pt; MARGIN: 0in 0in 0pt; FONT-FAMILY: "Times New Roman" } DIV.MsoNormal { FONT-SIZE: 12pt; MARGIN: 0in 0in 0pt; FONT-FAMILY: "Times New Roman" } A:link { COLOR: blue; TEXT-DECORATION: underline } SPAN.MsoHyperlink { COLOR: blue; TEXT-DECORATION: underline } A:visited { COLOR: purple; TEXT-DECORATION: underline } SPAN.MsoHyperlinkFollowed { COLOR: purple; TEXT-DECORATION: underline } SPAN.EmailStyle17 { FONT-WEIGHT: normal; COLOR: blue; FONT-STYLE: normal; FONT-FAMILY: Arial; TEXT-DECORATION: none; mso-style-type: personal-reply } DIV.Section1 { page: Section1 } </STYLE> </HEAD> <BODY lang=EN-US vLink=purple link=blue> <DIV dir=ltr align=left><SPAN class=250471322-23092008><FONT face=Arial color=#0000ff size=2>Hi Sandeep,</FONT></SPAN></DIV> <DIV dir=ltr align=left><SPAN class=250471322-23092008><FONT face=Arial color=#0000ff size=2>     I have made the following fix into upstart to get this work.</FONT></SPAN></DIV> <DIV dir=ltr align=left><SPAN class=250471322-23092008><FONT face=Arial color=#0000ff size=2>      Made the following code sengment into a function.</FONT></SPAN></DIV> <DIV dir=ltr align=left><SPAN class=250471322-23092008><FONT face=Arial color=#0000ff size=2></FONT></SPAN> </DIV> <DIV dir=ltr align=left><SPAN class=250471322-23092008><FONT face=Arial color=#0000ff size=2>In the event_finished() function, I look for a "started" event for a special Job called "systembus"</FONT></SPAN></DIV> <DIV dir=ltr align=left><SPAN class=250471322-23092008><FONT face=Arial color=#0000ff size=2>When the systembus job moves into started, I try to connect to the dbus again.</FONT></SPAN></DIV> <DIV dir=ltr align=left><SPAN class=250471322-23092008><FONT face=Arial color=#0000ff size=2></FONT></SPAN> </DIV> <DIV dir=ltr align=left><SPAN class=250471322-23092008><FONT face=Arial color=#0000ff size=2>This means that some one has to define a special upstart job file called "systembus" which will start the D-Bus daemon. </FONT></SPAN></DIV> <DIV dir=ltr align=left><SPAN class=250471322-23092008><FONT face=Arial color=#0000ff size=2>And Upstart Iit will try to connect to it when it sees the started event for that special job.</FONT></SPAN></DIV> <DIV dir=ltr align=left><SPAN class=250471322-23092008><FONT face=Arial color=#0000ff size=2></FONT></SPAN> </DIV> <DIV dir=ltr align=left><SPAN class=250471322-23092008><FONT face=Arial color=#0000ff size=2>This works fine and I am able to create a dbus-glib client that is able to connect and query Upstart through DBus.</FONT></SPAN></DIV> <DIV dir=ltr align=left><SPAN class=250471322-23092008><FONT face=Arial color=#0000ff size=2>Haven;t tested signals yet. Thats next on the list.</FONT></SPAN></DIV> <DIV dir=ltr align=left><SPAN class=250471322-23092008><FONT face=Arial color=#0000ff size=2></FONT></SPAN> </DIV> <DIV dir=ltr align=left><SPAN class=250471322-23092008><FONT face=Arial color=#0000ff size=2>Is this approach reasonable. Once I am done can I send this as a patch over for integration</FONT></SPAN></DIV> <DIV dir=ltr align=left><SPAN class=250471322-23092008><FONT face=Arial color=#0000ff size=2></FONT></SPAN> </DIV> <DIV dir=ltr align=left><SPAN class=250471322-23092008><FONT face=Arial color=#0000ff size=2>Sarvi</FONT></SPAN></DIV><BR> <DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left> <HR tabIndex=-1> <FONT face=Tahoma size=2><B>From:</B> upstart-devel-bounces@lists.ubuntu.com [mailto:upstart-devel-bounces@lists.ubuntu.com] <B>On Behalf Of </B>Sandeep Puddupakkam (spuddupa)<BR><B>Sent:</B> Tuesday, September 23, 2008 3:10 PM<BR><B>To:</B> upstart-devel@lists.ubuntu.com<BR><B>Subject:</B> RE: I don't see dbus-daemon being started by dbus?<BR></FONT><BR></DIV> <DIV></DIV> <DIV class=Section1> <P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">Has anyone successfully coded and used a dbus client for upstart using dbus-glib and talked to upstart?<o:p></o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">We are not able to use dbus to connect to upstart.<o:p></o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">I see the following comment and code in init/main.c<o:p></o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">            /* Open connection to the system bus; we normally expect this to<o:p></o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">             * fail and will try again later - don't let ENOMEM stop us though.<o:p></o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">             */<o:p></o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">            while (control_bus_open () < 0) {<o:p></o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">                        NihError *err;<o:p></o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">                        int       number;<o:p></o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">                        err = nih_error_get ();<o:p></o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">                        number = err->number;<o:p></o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">                        nih_free (err);<o:p></o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">                        if (number != ENOMEM)<o:p></o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">                                    break;<o:p></o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">            }<o:p></o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">Dbus-daemon is started from a job file and the above code is executed well before the job files are started. <o:p></o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">I however don’t see code any place else that tries to connect to dbus-daemon later on as suggested in the comment above.<o:p></o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">Is this functionality working or it needs to be fixed?<o:p></o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">Any pointers would be greatly appreciated.<o:p></o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">Thanks,<o:p></o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">Sandeep<o:p></o:p></SPAN></FONT></P> <DIV> <DIV class=MsoNormal style="TEXT-ALIGN: center" align=center><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"> <HR tabIndex=-1 align=center width="100%" SIZE=2> </SPAN></FONT></DIV> <P class=MsoNormal><B><FONT face=Tahoma size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">From:</SPAN></FONT></B><FONT face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"> upstart-devel-bounces@lists.ubuntu.com [mailto:upstart-devel-bounces@lists.ubuntu.com] <B><SPAN style="FONT-WEIGHT: bold">On Behalf Of </SPAN></B>Saravanan Shanmugham (sarvi)<BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Friday, September 12, 2008 1:07 AM<BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> upstart-devel@lists.ubuntu.com<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> I don't see dbus-daemon being started by dbus?</SPAN></FONT><o:p></o:p></P></DIV> <P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P> <DIV> <P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P></DIV> <DIV> <P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I am trying to write a dbus-glib client to talk to dbus.</SPAN></FONT><o:p></o:p></P></DIV> <DIV> <P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P></DIV> <DIV> <P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I have upstart running but don't see the dbus-daemon running. </SPAN></FONT><o:p></o:p></P></DIV> <DIV> <P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P></DIV> <DIV> <P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">The code inside init in main.c seems be attempting to connect to dbus-daemon. but i don't see it being started anywhere.</SPAN></FONT><o:p></o:p></P></DIV> <DIV> <P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P></DIV> <DIV> <P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Now when i try to define a job for dbus-daemon to be started, I don't see any code inside of dbus that tries to connect to </SPAN></FONT><o:p></o:p></P></DIV> <DIV> <P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">dbus-daemon except the one mentioned above which seems to be doing it a little too early be able to work with a job file.</SPAN></FONT><o:p></o:p></P></DIV> <DIV> <P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P></DIV> <DIV> <P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Am I missing something, or does upstart doesn't yet work with dbus?</SPAN></FONT><o:p></o:p></P></DIV> <DIV> <P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P></DIV> <DIV> <P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Thx,</SPAN></FONT><o:p></o:p></P></DIV> <DIV> <P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Sarvi</SPAN></FONT><o:p></o:p></P></DIV></DIV></BODY></HTML>