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+.. SPDX-License-Identifier: CC-BY-SA-4.0
+
+.. Copyright (C) 2020, 2021 embedded brains GmbH & Co. KG
+.. Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
+
+.. This file is part of the RTEMS quality process and was automatically
+.. generated.  If you find something that needs to be fixed or
+.. worded better please post a report or patch to an RTEMS mailing list
+.. or raise a bug report:
+..
+.. https://www.rtems.org/bugs.html
+..
+.. For information on updating and regenerating please refer to the How-To
+.. section in the Software Requirements Engineering chapter of the
+.. RTEMS Software Engineering manual.  The manual is provided as a part of
+.. a release.  For development sources please refer to the online
+.. documentation at:
+..
+.. https://docs.rtems.org
+
+.. Generated from spec:/rtems/message/if/group
+
+.. _MessageManagerIntroduction:
+
+Introduction
+============
+
+.. The following list was generated from:
+.. spec:/rtems/message/if/create
+.. spec:/rtems/message/if/construct
+.. spec:/rtems/message/if/ident
+.. spec:/rtems/message/if/delete
+.. spec:/rtems/message/if/send
+.. spec:/rtems/message/if/urgent
+.. spec:/rtems/message/if/broadcast
+.. spec:/rtems/message/if/receive
+.. spec:/rtems/message/if/get-number-pending
+.. spec:/rtems/message/if/flush
+.. spec:/rtems/message/if/buffer
+
+The Message Manager provides communication and synchronization capabilities
+using RTEMS message queues. The directives provided by the Message Manager are:
+
+* :ref:`InterfaceRtemsMessageQueueCreate` - Creates a message queue.
+
+* :ref:`InterfaceRtemsMessageQueueConstruct` - Constructs a message queue from
+  the specified the message queue configuration.
+
+* :ref:`InterfaceRtemsMessageQueueIdent` - Identifies a message queue by the
+  object name.
+
+* :ref:`InterfaceRtemsMessageQueueDelete` - Deletes the message queue.
+
+* :ref:`InterfaceRtemsMessageQueueSend` - Puts the message at the rear of the
+  queue.
+
+* :ref:`InterfaceRtemsMessageQueueUrgent` - Puts the message at the front of
+  the queue.
+
+* :ref:`InterfaceRtemsMessageQueueBroadcast` - Broadcasts the messages to the
+  tasks waiting at the queue.
+
+* :ref:`InterfaceRtemsMessageQueueReceive` - Receives a message from the queue.
+
+* :ref:`InterfaceRtemsMessageQueueGetNumberPending` - Gets the number of
+  messages pending on the queue.
+
+* :ref:`InterfaceRtemsMessageQueueFlush` - Flushes all messages on the queue.
+
+* :ref:`InterfaceRTEMSMESSAGEQUEUEBUFFER` - Defines a structure which can be
+  used as a message queue buffer for messages of the specified maximum size.