snmpa_notification_filter(3)

MODULE
snmpa_notification_filter - Behaviour module for the SNMP agent notification filters.

DESCRIPTION

This module defines the behaviour of the agent notification filters. A snmpa_notification_filter compliant module must export the following functions:

    *   handle_notification/2 .br .br

The semantics of them and their exact signatures are explained below.

The purpose of notification filters is to allow for modification and/or suppression of a notification.

A misbehaving filter will be removed.

EXPORTS

handle_notification(Notif, Data) -> Reply

    Types
        Reply = send | {send, NewNotif} | dont_send
        Notif = NewNotif = notification() | trap()
        Data = term()

    Handle a notification to be sent. The filter can either accept the notification as is, return send, modify the notification, return {send, NewNotif} or suppress the notification, return dont_send.

    Data is supplied at filter registration time, see register_notification_filter.