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+Message Passing
+###############
+
+Data Definitions for Message Queues
+===================================
+
+Data Structures
+---------------
+
+NOTE: Semaphores are implemented but only unnamed semaphores
+are currently tested.
+.. code:: c
+
+    mqd_t, Type, Implemented
+    struct mq_attr, Type, Implemented
+
+Message Passing Functions
+=========================
+
+Open a Message Queue
+--------------------
+
+.. code:: c
+
+    mq_open(), Function, Implemented
+
+Close a Message Queue
+---------------------
+
+.. code:: c
+
+    mq_close(), Function, Implemented
+
+Remove a Message Queue
+----------------------
+
+.. code:: c
+
+    mq_unlink(), Function, Implemented
+
+Send a Message to a Message Queue
+---------------------------------
+
+.. code:: c
+
+    mq_send(), Function, Implemented
+
+Receive a Message From a Message Queue
+--------------------------------------
+
+.. code:: c
+
+    mq_receive(), Function, Implemented
+
+Notify Process That a Message is Available on a Queue
+-----------------------------------------------------
+
+.. code:: c
+
+    mq_notify(), Function, Implemented
+
+Set Message Queue Attributes
+----------------------------
+
+.. code:: c
+
+    mq_setattr(), Function, Implemented
+
+Get Message Queue Attributes
+----------------------------
+
+.. code:: c
+
+    mq_getattr(), Function, Implemented
+
+.. COMMENT: COPYRIGHT (c) 1988-2002.
+
+.. COMMENT: On-Line Applications Research Corporation (OAR).
+
+.. COMMENT: All rights reserved.
+