[Freeswitch-users] ESL asynchronous use

Sun Nov 14 16:02:10 UTC 2021

You might like SignalWire RELAY which is a serverless call control API

https://docs.signalwire.com/topics/relay/#relay-documentation

On Sun, Nov 14, 2021 at 2:27 AM Telium Technical Support <support at telium.io>
wrote:

> I looked at the ESL C code and I **THINK** that I have to poll using the
> esl_recv_event_timed function (to look for the SESSION_HEARTBEAT event).
>
>
>
> Is there already a callback function that I can hook into to be *notified*
> of events?  If not, at which frequency should I poll for events (sleep
> inbetween) based on anyones experience?  I don’t like blocking code so I’m
> hoping there is already a callback function setup.
>
>
>
> Or is there some other way to handle this?
>
>
>
>
>
> *From:* FreeSWITCH-users [mailto:
> freeswitch-users-bounces at lists.freeswitch.org] *On Behalf Of *Guillermo
> Ruiz Camauer
> *Sent:* Friday, November 12, 2021 8:31 AM
> *To:* FreeSWITCH Users Help <freeswitch-users at lists.freeswitch.org>
> *Subject:* Re: [Freeswitch-users] ESL asynchronous use
>
>
>
> There is a SESSION_HEARTBEAT event that you can monitor to see if FS has
> stopped responding.  It also has a lot of other useful information.
>
>
>
> Guillermo
>
>
>
>
>
>
>
>
> On Thu, Nov 11, 2021 at 8:56 PM Telium Technical Support <
> support at telium.io> wrote:
>
> No crash, just learning how to use the ESL.  I strongly prefer async
> design, so wondering if connect and disconnect have some sort of
> success/failure callback.
>
>
>
> Or is the only way to check success to send a command over the socket?
>
>
>
> Same with disconnect, do we need to wait for a send failure?
>
>
>
> *From:* Brian West [mailto:brian at freeswitch.com]
> *Sent:* Thursday, November 11, 2021 8:46 AM
> *To:* Telium Technical Support <support at telium.io>
> *Cc:* FreeSWITCH Users Help <freeswitch-users at lists.freeswitch.org>
> *Subject:* Re: [Freeswitch-users] ESL asynchronous use
>
>
>
> If you have a crash you should perform a back trace and submit an issue on
> github.
>
>
>
> /b
>
>
>
>
>
> On Wed, Nov 10, 2021 at 7:50 PM Telium Technical Support <
> support at telium.io> wrote:
>
> I’m trying to figure out asynchronous use of the ESL (from C).  If I call
> esl_connect_timeout with a timeout of 0, what happens if the connection is
> not made immediately?  Is there some callback function indicating
> success/failure?
>
>
>
> If the esl connection is lost (FreeSwitch crashes), is there a callback
> function indicating the lost connection?  Or do I need to issue a
> status/keepalive to ensure function succeeds?
>
>
>
> Looking a bit at the esl.c code I’m wondering if the above are synchronous
> only…(polling for status)
>
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> _________________________________________________________________________
>
> The FreeSWITCH project is sponsored by SignalWire https://signalwire.com
> Enhance your FreeSWITCH install with disruptive priced SMS and PSTN
> services.
> Build your next product on our scalable cloud platform.
>
> Join our online community to chat in real time
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>
> Professional FreeSWITCH Services
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>
>
> --
>
> Guillermo Ruiz Camauer
> _________________________________________________________________________
>
> The FreeSWITCH project is sponsored by SignalWire https://signalwire.com
> Enhance your FreeSWITCH install with disruptive priced SMS and PSTN
> services.
> Build your next product on our scalable cloud platform.
>
> Join our online community to chat in real time
> https://signalwire.community
>
> Professional FreeSWITCH Services
> sales at freeswitch.com
> https://freeswitch.com
>
> Official FreeSWITCH Sites
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> https://freeswitch.org/confluence
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>
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-- 
Anthony Minessale II
Founder, FreeSWITCH.
http://freeswitch.com

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