[asterisk-dev] Sending Channel Variables on events.

[Chris Howard]

I need a way to receive channel variable data on certain events.  For
example we are setting a contact_code on a channel in an AGI and we need
to be able to retrieve the contact_code via the AgentCalled manager
event.  What I did was patch app_queue to use the
pbx_builtin_serialize_variables function to retreive all of the channel
variables for the channel being sent to the agent, replace the newlines
with a "|" and added it to the AgentCalled event.  This works fine but
is there a better to accomplish this. 

/* get channel variables *?
if(pbx_builtin_serialize_variables(qe->chan,vars,sizeof(vars)))
{
      /* convert "/n" to "|"  loop through pointer to char[] */
      varPtr=vars;
      while((varPtr = strchr(varPtr, '\n')))
            *varPtr++ = '|';
      ast_verbose(VERBOSE_PREFIX_3 "Channel Variables:  %s\n", vars);
}
manager_event(EVENT_FLAG_AGENT, "AgentCalled",
                                "AgentCalled: %s\r\n"
                                "ChannelCalling: %s\r\n"
                                "CallerID: %s\r\n"
                                "CallerIDName: %s\r\n"
                                "Context: %s\r\n"
                                "Extension: %s\r\n"
                                "Priority: %d\r\n"
                                "ChanVars: %s\r\n",
                                tmp->interface, qe->chan->name,
                                tmp->chan->cid.cid_num ?
tmp->chan->cid.cid_num : "unknown",
                                tmp->chan->cid.cid_name ?
tmp->chan->cid.cid_name : "unknown",
                                qe->chan->context, qe->chan->exten,
qe->chan->priority,vars);




Christopher Howard
chris at asteriasgi.com

Asteria Solutions Group, Inc.
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