This application provides a simple mechanism for supervising
handlers, packaged as an OTP library for convenient reuse.
gen_event mechanism is different from the other OTP behaviours, because
the (user) callback module does not represent (i.e, is not run in) its own,
separate process. Using the standard OTP
gen_event mechanism, an event hander
callback module that crashes will be silently removed from its event manager.
Because the event handler is not a process, it is not therefore possible to have
the handler participate in a supervision tree. To compensate for this apparent
gen_event module exports an
add_sup_handler/3 method which offers
the calling process a contract which promises notification of exit/error signals
in the callback module, delivered to its message queue.
This library takes advantage of this supervision mechanism, wrapping up all the details and providing a pre-packaged supervision tree for event managers and handlers, with a simple API and configuration system for managing all the above.
gen_event_registrar package is licensed under a permissive, BSD-like
license, which allows for combined with other works under different (sub) license