[Freeswitch-users] Issue with Javascript setTimeout
Anthony Minessale
anthony.minessale at gmail.com
Wed Jan 27 03:24:58 MSK 2016
You might get a more scalable result with this in test.js and get rid of
inc.js completely.
session:execute("sched_transfer", "+5
playback:/sounds/en/us/callie/test.wav,hangup
inline");
On Tue, Jan 26, 2016 at 2:44 PM, Michael Jerris <mike at jerris.com> wrote:
> If its in park thats one thing, if you are doing ANYTHING to the channel,
> you have potential concurrency issues, if you are doing anything with audio
> from different threads, nothing good will come from it. As for another
> possible solution to the original problem, you could sched_api and
> uuid_transfer to a different extension that played what you needed to play
> and then hung up too.
>
> On Jan 26, 2016, at 3:37 PM, Matt Broad <matt at supportedbusiness.com>
> wrote:
>
> :/
>
> I only came across this method after trying to get the sched_broadcast to
> not block. An answer from Anthony on the 17th Sept 2015 (shown below) gave
> me the idea, though I have never implemented it into anything other than
> test code.
>
> *"uuid_broadcast does not block.*
> *The problem is you are calling it from your js app which is occupying the
> session thread.*
>
> *To perform async operation you need to run your script outside the
> session thread by calling the script via the api interface via jsrun and
> pass the uuid then put the channel into park or use an esl script to
> control the session externally."*
>
> I must admit the inner workings of the session thread is not something I
> have looked into personally (one day maybe).
> If you could give me a quick explanation as to why this wouldn't work that
> would be appreciated :)
>
>
> Thanks
> Matt
>
> On 26 January 2016 at 17:09, Michael Jerris <mike at jerris.com> wrote:
>
>> This isn't supposed to work.. and might cause crashes.
>>
>> On Jan 26, 2016, at 10:18 AM, Matt Broad <matt at supportedbusiness.com>
>> wrote:
>>
>> works fine for me :)
>>
>> *DialPlan*
>> <condition field="destination_number" expression="^1234$">
>> <action application="answer" />
>> <action application="javascript" data="test.js" />
>> </condition>
>>
>>
>> *test.js*
>> result = apiExecute("sched_api","+5 "+session.uuid+" jsrun
>> /scripts/inc.js "+session.uuid);
>> console_log("notice", "entering loop\n");
>> while (session.ready())
>> {
>> //sit here whilst the call is still connected
>> }
>> console_log("notice", "call ended\n");
>>
>>
>> *inc.js*
>> include("includes/General.js"); //this includes a function "Output" to
>> log to screen
>>
>> var session = new Session(argv[0]);
>>
>> if (session.ready()) {
>> Output("TIMEOUT");
>> session.execute("playback", "/sounds/en/us/callie/test.wav");
>> session.execute("sleep","500");
>> session.hangup();
>> }
>> exit("TIMEOUT");
>>
>>
>> Thanks
>> Matt
>>
>> On 26 January 2016 at 14:43, Michael Jerris <mike at jerris.com> wrote:
>>
>>> this won't actually work. You can't session execute from outside the
>>> session thread like this.
>>>
>>>
>>> On Tuesday, January 26, 2016, Matt Broad <matt at supportedbusiness.com>
>>> wrote:
>>>
>>>> Hi Normando,
>>>>
>>>> from your description I assumed you were just trying to schedule a file
>>>> to play and hang up.
>>>>
>>>> If you are trying to run a block of code at a certain time in the
>>>> future then you could use sched_api.
>>>> https://freeswitch.org/confluence/display/FREESWITCH/mod_commands#mod_commands-sched_api
>>>> This will execute an API command after a given time. In your case you
>>>> could use the API command *jsrun* to run a script containing your
>>>> function.
>>>>
>>>> An example would be:
>>>>
>>>> *result = apiExecute("sched_api","120 "+session.uuid+" jsrun
>>>> /scripts/function.js "+session.uuid+" "+despedida);*
>>>>
>>>>
>>>> The above will execute jsrun after 120 seconds (this is linked to the
>>>> session.uuid so if the channel is destroyed the task will be removed
>>>> automatically). This will run the function.js file and pass it the current
>>>> session uuid along with the despedida variable.
>>>> Within the function.js file, you can create a session object using the
>>>> uuid passed through and then use this to play the file etc
>>>>
>>>> e.g of function.js
>>>>
>>>> var session = new Session(argv[0]);
>>>> var despedida = argv[1];
>>>>
>>>> if (session.ready()) {
>>>> logger("TIMEOUT");
>>>> session.execute("playback", sonidos + "/TIMEOUT.wav");
>>>> session.execute("sleep","500");
>>>> logger(despedida);
>>>> session.execute("playback", sonidos + "/" + despedida + ".wav");
>>>> session.hangup();
>>>> }
>>>> exit("TIMEOUT");
>>>>
>>>>
>>>>
>>>> thanks
>>>> Matt
>>>>
>>>> On 25 January 2016 at 22:11, Michael Jerris <mike at jerris.com> wrote:
>>>>
>>>>> If you are trying to trigger that code to run at a specific time,
>>>>> regardless of what else it is doing, that will be very difficult to do with
>>>>> embedded js, and running with something async is probably required. A
>>>>> note, you might want to look at phrase macros as they will greatly simplify
>>>>> some of that code as well.\
>>>>> Mike
>>>>>
>>>>> On Jan 25, 2016, at 4:24 PM, Normando Hall <nhall at unixlan.com.ar>
>>>>> wrote:
>>>>>
>>>>> Hi Michael.
>>>>>
>>>>> Yes, you are right, maybe the better is to use ESL.
>>>>> My script is basically an IVR. When all the audio files are played,
>>>>> then wait until the user press a dtmf key or timeout occur. Because there
>>>>> are a lot of files to play based on caller ID, I wait for the user input at
>>>>> the end of the script, but prior to finish the script, because hangsup.
>>>>>
>>>>> I workaround this with:
>>>>>
>>>>> session.collectInput(onPlay, services, afterMenuTimeOut, totalTimeOut);
>>>>> playTimeout(despedida)
>>>>>
>>>>> and return always "true" from "onPlay" callback.
>>>>>
>>>>> Respond to your question, this is the function I want to run in
>>>>> setTimeout:
>>>>>
>>>>> function playTimeout(despedida){
>>>>> if (session.ready()) {
>>>>> logger("TIMEOUT");
>>>>> session.execute("sleep","400");
>>>>> session.execute("playback", sonidos + "/TIMEOUT.wav");
>>>>> session.execute("sleep","400");
>>>>> logger(despedida);
>>>>> session.execute("playback", sonidos + "/" + despedida +
>>>>> ".wav");
>>>>> session.hangup();
>>>>> }
>>>>> exit("TIMEOUT");
>>>>> }
>>>>>
>>>>> Thanks
>>>>> Normando
>>>>>
>>>>> El 25/01/2016 a las 05:20 p.m., Michael Jerris escribió:
>>>>>
>>>>> What exactly is the javascript doing when you want to call that
>>>>> callback? this is probably not possible due to how the JavaScript is
>>>>> blocked by native functions when doing actions such as handling audio due
>>>>> to the threading model of the embedded languages. They run in the session
>>>>> thread so they are not as async as people tend to be used to with js.
>>>>> This sort of approach might be more appropriate when using js in a remote
>>>>> control type structure such as when controlling a session over esl, but not
>>>>> in the embedded mod_v8. we have discussed doing a truly async type control
>>>>> for embedded languages but have never implemented it.
>>>>>
>>>>> On Monday, January 25, 2016, Normando Hall <nhall at unixlan.com.ar>
>>>>> wrote:
>>>>>
>>>>>> Thanks Matt, I can play a file, but still can't run the function. Are
>>>>>> there any application can run a function instead a file?
>>>>>>
>>>>>> Thanks!
>>>>>> Normando
>>>>>>
>>>>>>
>>>>>> El 25/01/2016 a las 05:59 a.m., Matt Broad escribió:
>>>>>>
>>>>>> try using the 1 liner sched_broadcast
>>>>>> <https://freeswitch.org/confluence/display/FREESWITCH/mod_dptools%3A+sched+broadcast>
>>>>>> https://freeswitch.org/confluence/display/FREESWITCH/mod_dptools%3A+sched+broadcast
>>>>>>
>>>>>> The below will schedule a broadcast to play /tmp/hangupfile.mp3 to
>>>>>> both legs after 60 seconds.
>>>>>>
>>>>>> *maxTimeTaskID = **session.execute("sched_broadcast", "+60
>>>>>> playback!normal_clearing::/tmp/hangupfile.mp3 both")*;
>>>>>>
>>>>>> If you find you need to cancel the broadcast use:
>>>>>>
>>>>>> *session.execute("sched_cancel",maxTimeTaskID);*
>>>>>>
>>>>>> hope this helps.
>>>>>>
>>>>>> thanks
>>>>>> Matt
>>>>>>
>>>>>> On 25 January 2016 at 06:58, <royj at yandex.ru> wrote:
>>>>>>
>>>>>>> have no relationship to the resource, but first link to request
>>>>>>> 'asynchronous code javascript'
>>>>>>>
>>>>>>>
>>>>>>> http://www.hiddenwebgenius.com/blog/guides/understanding-javascripts-asynchronous-code/
>>>>>>>
>>>>>>> 25.01.2016, 09:16, "Normando Hall" <nhall at unixlan.com.ar>:
>>>>>>> > Sorry, I missed to say it is Freeswitch 1.4
>>>>>>> >
>>>>>>> > El 25/01/2016 a las 02:53 a.m., Normando Hall escribió:
>>>>>>> >> Hello everybody.
>>>>>>> >>
>>>>>>> >> I am coding a js script to do somethings, and I want to add a
>>>>>>> global
>>>>>>> >> timeout, to call a function to play a file and hangup. But the
>>>>>>> function
>>>>>>> >> called inmediatelly.
>>>>>>> >> Also tested with setInterval, the same behaviour.
>>>>>>> >>
>>>>>>> >> function playTimeout(despedida){
>>>>>>> >> if (session.ready()) {
>>>>>>> >> logger("TIMEOUT");
>>>>>>> >> session.execute("playback", sonidos + "/TIMEOUT.wav");
>>>>>>> >> session.execute("sleep","500");
>>>>>>> >> logger(despedida);
>>>>>>> >> session.execute("playback", sonidos + "/" + despedida +
>>>>>>> ".wav");
>>>>>>> >> session.hangup();
>>>>>>> >> }
>>>>>>> >> exit("TIMEOUT");
>>>>>>> >> }
>>>>>>> >>
>>>>>>> >> setTimeout(playTimeout(despedida),120000);
>>>>>>> >> .
>>>>>>> >> .
>>>>>>> >> .
>>>>>>> >> my script continue
>>>>>>> >>
>>>>>>> >> Any help is welcome!
>>>>>>> >>
>>>>>>> >> Thank you
>>>>>>> >> Normando
>>>>>>> >>
>>>>>>> >>
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>>>>>>
>>>>>>
>>>>>>
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>>>>>>
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>>>>>>
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>>>>>>
>>>>>>
>>>>>>
>>>>>
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>>>>>
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>>>>>
>>>>>
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>>>>>
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>>>>
>>>>
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>>
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>
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>
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>
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>
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--
Anthony Minessale II ♬ @anthmfs ♬ @FreeSWITCH ♬
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