I had a little difficult at startup so I hope that this code can help someone.
Using "esl_oop" module, I have implemented a basic ESL Channel class (that can be extended) so the "main" event handling loop can be very simple, for example for an unuseful esl bridge application, can be:
ESLevent * event = connection.recvEventTimed(1000);
if (event)
{
const char * ename = event->getHeader("Event-Name");
const char * event_uuid = event->getHeader("unique-id");
// It's an event for LegB ?
//-------------------------
if (legB.Uuid() == event_uuid)
{
if (!strcmp(ename, "CHANNEL_PROGRESS_MEDIA"))
{
legA.PreAnswer();
legA.BridgeTo(legB);
}
else if (!strcmp(ename, "CHANNEL_ANSWER"))
{
legA.Answer();
legA.BridgeTo(legB);
}
else if (!strcmp(ename,"CHANNEL_HANGUP"))
{
const char * cause = event->getHeader("Hangup-Cause");
legA.Hangup(cause);
}
}
// It's an event for LegA ?
//-------------------------
else if (legA.Uuid() == event_uuid)
{
if (!strcmp(ename,"CHANNEL_HANGUP"))
{
const char * cause = event->getHeader("Hangup-Cause");
legB.Hangup(cause);
}
}
delete event;
}