.. SPDX-License-Identifier: CC-BY-SA-4.0

.. Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)

Introduction
============

The message manager provides communication and synchronization capabilities
using RTEMS message queues.  The directives provided by the message manager
are:

- :ref:`rtems_message_queue_create`

- :ref:`rtems_message_queue_ident`

- :ref:`rtems_message_queue_delete`

- :ref:`rtems_message_queue_send`

- :ref:`rtems_message_queue_urgent`

- :ref:`rtems_message_queue_broadcast`

- :ref:`rtems_message_queue_receive`

- :ref:`rtems_message_queue_get_number_pending`

- :ref:`rtems_message_queue_flush`