[Freeswitch-users] Receiving junk ESL events

[Anthony Minessale]

the events are async so you can't count on the next event returned to
be a reply to one you sent.
you need to use the api command and uuid_kill to do the hangup

char cmd[128];
snprintf(cmd, sizeof(cmd), "api uuid_kill %s\n\n", some_uuid);

esl_send_recv(&handle, cmd);

this function actually guarantees a reply

On Wed, Aug 3, 2011 at 2:10 AM, dma <mays.david at gmail.com> wrote:
> Hello All,
>
> I have some problem with receiving and handling ESL events.
>
> My code is like:
>
> void handle_eslswitch_event_plain(esl_handle_t *handle, esl_event_t *event)
> {
>        ... ...
>        TRACE_DEBUG("ESL event [%d] %s: UUID: %s",
>                event->event_id, fs_get_event_header(event, "Event-Name"),
> uniqueid);
>         print_event(event);
>        ... ...
> }
>
> void handle_event(esl_handle_t *handle, esl_event_t *last_event)
> {
>        ... ...
>        if (!strcasecmp(type, "text/event-plain")) {
>            handle_eslswitch_event_plain(handle, handle->last_ievent);
>        }
>        ... ...
> }
>
> int main()
> {
>        ... ...
>        //receive from event socket
>        if (handle.last_event) handle_event(&handle, handle.last_event);
>        ... ...
>
> Usually I receive correct events. But I occasionally receive incorrect
> event. See below the 1st is the normal event and the 2nd is the wrong event:
>
> <2011-07-29 14:25:29> [DEBUG] ESL event [8] CHANNEL_HANGUP_COMPLETE: UUID:
> f320e4a6-db23-46d0-8d89-9957eccbd4c9
> <2011-07-29 14:25:29> [DEBUG] RECV EVENT
> Event-Name: CHANNEL_HANGUP_COMPLETE
> Core-UUID: 26b77cba-8fdd-486d-90ec-6844bca58c72
> FreeSWITCH-Hostname: fs01
> FreeSWITCH-IPv4: 10.1.1.46
> FreeSWITCH-IPv6: ::1
> Event-Date-Local: 2011-07-29 14:25:29
>
> However, usually after failure in executing "hangup" and getting "-ERR ..."
> in the event->last_sr_reply, I have wrong event, but not always (an -ERR
> returned from executing "hangup" doesn't always result in a wrong event).
> Here it is:
>
> <2011-07-29 14:25:29> [NOTICE] -ERR invalid session id
> [f320e4a6-db23-46d0-8d89-9957eccbd4c9]
> <2011-07-28 15:55:23> [DEBUG] ESL event [0] : UUID:
> <2011-07-28 15:55:23> [DEBUG] RECV EVENT
> Content-Length: 6485
> Content-Type: text/event-plain
>
> Event-Name: CHANNEL_HANGUP
> Core-UUID: 26b77cba-8fdd-486d-90ec-6844bca58c72
> FreeSWITCH-Hostname: fs01
> FreeSWITCH-IPv4: 10.1.1.46
> FreeSWITCH-IPv6: %3A%3A1
> Event-Date-Local: 2011-07-28%2015%3A55%3A23
>
> In the above case, both Event ID and UUID are invalid.
>
> I think i need more information regarding how to use the data elements in
> ESL event, especially how to use the following:
>
>    char last_reply[1024];
>    /*! Las command reply when called with esl_send_recv */
>    char last_sr_reply[1024];
>    /*! Last event received. Only populated when **save_event is NULL */
>    esl_event_t *last_event;
>    /*! Last event received when called by esl_send_recv */
>    esl_event_t *last_sr_event;
>    /*! This will hold already processed events queued by esl_recv_event */
>    esl_event_t *race_event;
>    /*! Events that have content-type == text/plain and a body */
>    esl_event_t *last_ievent;
>
> My questions, what event should I check if I am interested in only
> channel/call related events, and how? Do I check handle.last_event, or
> handle.last_ievent, or what?
>
> Else, when checking command reply, do I check last_sr_reply, or
> last_sr_event->body?
>
> Please kindly advice.
>
> Thanks,
> D.Ma
>
>
>
> --
> View this message in context: http://freeswitch-users.2379917.n2.nabble.com/Receiving-junk-ESL-events-tp6647776p6647776.html
> Sent from the freeswitch-users mailing list archive at Nabble.com.
>
> _______________________________________________
> Join us at ClueCon 2011, Aug 9-11, Chicago
> http://www.cluecon.com 877-7-4ACLUE
>
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org
>



-- 
Anthony Minessale II

FreeSWITCH http://www.freeswitch.org/
ClueCon http://www.cluecon.com/
Twitter: http://twitter.com/FreeSWITCH_wire

AIM: anthm
MSN:anthony_minessale at hotmail.com
GTALK/JABBER/PAYPAL:anthony.minessale at gmail.com
IRC: irc.freenode.net #freeswitch

FreeSWITCH Developer Conference
sip:888 at conference.freeswitch.org
googletalk:conf+888 at conference.freeswitch.org
pstn:+19193869900