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

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

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

The semaphore manager utilizes standard Dijkstra
counting semaphores to provide synchronization and mutual
exclusion capabilities.  The directives provided by the
semaphore manager are:

- :ref:`rtems_semaphore_create`

- :ref:`rtems_semaphore_ident`

- :ref:`rtems_semaphore_delete`

- :ref:`rtems_semaphore_obtain`

- :ref:`rtems_semaphore_release`

- :ref:`rtems_semaphore_flush`

- :ref:`rtems_semaphore_set_priority`