[Freeswitch-users] Unstable hangup hook in javascript

Fri Jul 23 18:33:00 PDT 2010

Makes sense then to use realtime call flow control from the script.

On Friday 23 July 2010, xuyan yang wrote:
> In my application, I seldom route calls. The task is to use FS as a
> automated business coordinator over phone. Users call the system to update
> their information and raise requests. The system collect these information
> and upload to database. With real-time data, FS make decision and give out
> instruction through SMS or out-going calls.
> In this interesting situation, Freeswitch become Never-Switch, because it
> takes the responsibility itself to communicate with each caller/callee
> instead of switching to others.
> That's why my script become complex.
> 
> On Sat, Jul 24, 2010 at 8:03 AM, Sergey Okhapkin
> 
> <sos at sokhapkin.dyndns.org>wrote:
> > Which task do you want to accomplish? To me dynamic generation of FS
> > dialplan
> > from a script (language doesn't matter)  works better than realtime call
> > flow
> > control from a script, event socket etc. I do call routing, no PBX
> > functions.
> >
> > On Friday 23 July 2010, xuyan yang wrote:
> > > I know the solution of putting "if(!session.ready())exit()" to every
> >
> > check
> >
> > > point. But as my script already has nearly 3000 lines, there are too
> > > many "if(!session.ready())exit()" to add.
> > >
> > > I tried error();  it works just because error is not defined. Using
> > > intentional mistake to force exit is creative but strange.
> > > After some thoughts I found that throw a user defined exception in the
> >
> > hook
> >
> > > may be a better way to force exit without the red [ERR] line.
> > >
> > > By the way, I still feel that let exit() in the hook stop the whole
> >
> > script
> >
> > > instead of the hook only seems to be more consistent because they are
> > > not executed in separate thread. Would you please consider this if it
> > > is not difficult? Thanks.
> > >
> > >
> > > On Sat, Jul 24, 2010 at 6:17 AM, Anthony Minessale <
> > >
> > > anthony.minessale at gmail.com> wrote:
> > > > if session.ready is false it means the channel is hungup.
> > > >
> > > > error(); will exit your script.
> > > >
> > > > you can probably remove some of them if you are getting better
> > > > results with the patch.
> > > >
> > > > On Fri, Jul 23, 2010 at 4:56 PM, xuyan yang <xyangni at gmail.com> wrote:
> > > >> Thanks for your update. I have tested it again base on the latest
> > > >> git tree, the hangup hook does work every time and the script
> > > >> continue to run without error message.
> > > >>
> > > >> But this behaviour change caused another problem as I still need to
> >
> > stop
> >
> > > >> the script when the session is hangup.
> > > >> Adding if(session.ready()) to every line of my script does not seem
> > > >> to be a good solution. So I decided to call exit() in the hangup
> > > >> hook. However the test result is that exit() in hangup hook only
> > > >> works the same as "return". That means exit() in hangup hook only
> > > >> stops the hook while the main program can not be stopped.
> > > >>
> > > >> Is there any good solution to stop the script immediately when
> > > >> hangup?
> > > >>
> > > >> On Sat, Jul 24, 2010 at 3:13 AM, Anthony Minessale <
> > > >>
> > > >> anthony.minessale at gmail.com> wrote:
> > > >>> give lastest HEAD a try, I pushed in some more checks and made
> >
> > calling
> >
> > > >>> session.hangup() nonfatal when it's already hungup.
> > > >>>
> > > >>> On Fri, Jul 23, 2010 at 1:27 PM, xuyan yang <xyangni at gmail.com>
> >
> > wrote:
> > > >>>> I added many session.ready() as below and re-do the test again.
> > > >>>> the steps are:
> > > >>>> 1. type jsrun test.js   in fs_cli
> > > >>>> 2. answer the call in x-lite.
> > > >>>> 3. when I hear the speech, hangup the call in about 1 second.
> > > >>>> 4 check the log to find  "hangup!!!!!!!!!!!!!"
> > > >>>>
> > > >>>> the result is that
> > > >>>>  about half of the test failed to call hangup hook.
> > > >>>> in all tests the script end up with [ERR] inline:1 Session is not
> > > >>>> active!    then the script stopped and session.ready() near the
> > > >>>> end can not get the chance to run.
> > > >>>>
> > > >>>>
> > > >>>>
> > > >>>> ////test.js
> > > >>>> function on_hangup(session, how){
> > > >>>>  console_log("notice","hangup!!!!!!!!!!!!!\n");
> > > >>>> }
> > > >>>>
> > > >>>> session = new Session("sofia/gateway/12voip-out/*********");
> > > >>>> session.waitForAnswer();
> > > >>>> session.ready();
> > > >>>> session.execute("set","continue_on_fail=true");
> > > >>>> var res=session.setHangupHook(on_hangup);
> > > >>>> console_log("notice","res:"+res+"\n");
> > > >>>> if(session.ready())session.execute("speak", "This is an example of
> > > >>>> flite text to speech engine. We can test the work of
> > > >>>> hanguphook."); if(session.ready())session.execute("speak","you are
> > > >>>> calling from " + session.caller_id_num + " You are calling " +
> > > >>>> session.destination ); session.ready();
> > > >>>> session.hangup();
> > > >>>>
> > > >>>> On Sat, Jul 24, 2010 at 1:08 AM, Anthony Minessale <
> > > >>>>
> > > >>>> anthony.minessale at gmail.com> wrote:
> > > >>>>> It checks before and after blocking calls like that.
> > > >>>>>
> > > >>>>> On Jul 23, 2010 11:53 AM, "Dan" <freeswitch-users at digitaldan.com>
> > > >>>>> wrote:
> > > >>>>>
> > > >>>>>  So If I call session.recordFile which blocks in code until the
> >
> > user
> >
> > > >>>>> hangs up, and can't make periodic calls to session.ready,  is the
> > > >>>>> hangup hook not realiable in this scenario?
> > > >>>>>
> > > >>>>> ------------------------------
> > > >>>>> *From: *"Anthony Minessale" <anthony.minessale at gmail.com>
> > > >>>>> *To: *"FreeSWITCH Users Help" <
> >
> > freeswitch-users at lists.freeswitch.org>
> >
> > > >>>>> *Sent: *Thursday, July 22, 2010 10:30:48 AM
> > > >>>>> *Subject: *Re: [Freeswitch-users] Unstable hangup hook in
> >
> > javascript
> >
> > > >>>>> You must make periodic calls to session.ready() or some other
> > > >>>>> freeswitch api functions to trigger ...
> > > >>>>>
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> > > >>> --
> > > >>> Anthony Minessale II
> > > >>>
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> > > > --
> > > > Anthony Minessale II
> > > >
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> >>
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