15. Event Manager# 15.1. Introduction 15.2. Background 15.2.1. Event Sets 15.2.2. Building an Event Set or Condition 15.2.3. Building an EVENT_RECEIVE Option Set 15.3. Operations 15.3.1. Sending an Event Set 15.3.2. Receiving an Event Set 15.3.3. Determining the Pending Event Set 15.3.4. Receiving all Pending Events 15.4. Directives 15.4.1. rtems_event_send() 15.4.2. rtems_event_receive()