[Freeswitch-dev] Verbose Events

[Michael Jerris]

A patch went in earlier this week on this issue.

Mike

On Nov 16, 2010, at 5:37 AM, David Brazier wrote:

> [same as last message, better formatting!]
> 
> Hi All
> 
> I want to get session variables on all events.  I have tried using the "verbose-events" dialplan app but that isn't convenient to use when bridging.  So I have set 
> 
> <param name="verbose-channel-events" value="yes"/>
> 
> in switch.conf.xml & restarted to make sure.  But I still don't see variables on all events, for example CHANNEL_CALLSTATE.  In the source code, there are 3 related flags:
> 
> 1.  CF_VERBOSE_EVENTS - the "channel flag" set by the "verbose-events" dialpan app 
> 
> 2.  SCF_VERBOSE_EVENTS - the "switch control flag", set by "verbose-channel-events" in switch.conf.xml 
> 
> 3.  SCSC_VERBOSE_EVENTS - used by "fsctl verbose_events" - actually SCSC_VERBOSE_EVENTS is only an internal name for the command - using "fsctl verbose_events" sets or clears SCF_VERBOSE_EVENTS
> 
> In switch_core.c the SCSC_ flags are accessed via switch_core_session_ctl: 
> 
> SWITCH_DECLARE(int32_t) switch_core_session_ctl(switch_session_ctl_t cmd, void *val) {
>        int *intval = (int *) val;
>        int oldintval = 0, newintval = 0;
> 
>        if (intval) {
>                oldintval = *intval;
>        }
> 
>        if (switch_test_flag((&runtime), SCF_SHUTTING_DOWN)) {
>                return -1;
>        }
> 
>        switch (cmd) {
>        case SCSC_VERBOSE_EVENTS:
>                if (intval) {
>                        if (oldintval > -1) {
>                                if (oldintval) {
>                                        switch_set_flag((&runtime), SCF_VERBOSE_EVENTS);
>                                } else {
>                                        switch_clear_flag((&runtime), SCF_VERBOSE_EVENTS);
>                                }
>                        }
>                        newintval = switch_test_flag((&runtime), SCF_VERBOSE_EVENTS);
>                }
>                break;
>        ...
>        }
> 
>        if (intval) {
>                *intval = newintval;
>        }
> 
> 
>        return 0;
> }
> 
> If I read this right, the caller can use this to just get the flag without setting it by setting val to -1 initially.  However, in switch_channel.c where it is deciding whether to do a verbose event:
> 
> SWITCH_DECLARE(void) switch_channel_event_set_extended_data(switch_channel_t *channel, switch_event_t *event) {
>        switch_event_header_t *hi;
>        int x, global_verbose_events = 0;
> 
>        switch_mutex_lock(channel->profile_mutex);
> 
>        switch_core_session_ctl(SCSC_VERBOSE_EVENTS, &global_verbose_events);
> 
>        if (global_verbose_events ||
>                switch_channel_test_flag(channel, CF_VERBOSE_EVENTS) ||
>                switch_event_get_header(event, "presence-data-cols") ||
>                event->event_id == SWITCH_EVENT_CHANNEL_CREATE ||
>                event->event_id == SWITCH_EVENT_CHANNEL_ORIGINATE || ...)
>        // then add the variables to the event
> 
> Because this does "global_verbose_events = 0" it always clears SCF_VERBOSE_EVENTS.
> 
> I could easily have misuderstood, and if anyone else has had success with "verbose-channel-events" please let me know.
> 
> Cheers
> 
> David
> 
> _______________________________________________
> FreeSWITCH-dev mailing list
> FreeSWITCH-dev at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-dev
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-dev
> http://www.freeswitch.org