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c-user: Generate Timer Manager documentation
The documentation is a consolidation of the comments in Doxygen markup and the documentation sources in Sphinx markup. The documentation was transfered to interface specification items. The documentation source files were generated from the items by a script. Update #3993.
This commit is contained in:
Sebastian Huber
parent
dad89ce7a9
commit
d716c79070
@ -1,190 +1,270 @@
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.. SPDX-License-Identifier: CC-BY-SA-4.0
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.. Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
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.. Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
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.. This file is part of the RTEMS quality process and was automatically
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.. generated. If you find something that needs to be fixed or
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.. worded better please post a report or patch to an RTEMS mailing list
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.. or raise a bug report:
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..
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.. https://docs.rtems.org/branches/master/user/support/bugs.html
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..
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.. For information on updating and regenerating please refer to:
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..
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.. https://docs.rtems.org/branches/master/eng/req/howto.html
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.. _TimerManagerDirectives:
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Directives
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==========
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This section details the timer manager's directives. A subsection is dedicated
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to each of this manager's directives and describes the calling sequence,
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related constants, usage, and status codes.
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This section details the directives of the Timer Manager. A subsection is
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dedicated to each of this manager's directives and lists the calling sequence,
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parameters, description, return values, and notes of the directive.
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.. Generated from spec:/rtems/timer/if/create
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.. raw:: latex
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\clearpage
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.. index:: rtems_timer_create()
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.. index:: create a timer
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.. index:: rtems_timer_create
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.. _rtems_timer_create:
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.. _InterfaceRtemsTimerCreate:
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TIMER_CREATE - Create a timer
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-----------------------------
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rtems_timer_create()
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--------------------
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Creates a timer.
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.. rubric:: CALLING SEQUENCE:
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CALLING SEQUENCE:
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.. code-block:: c
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rtems_status_code rtems_timer_create(
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rtems_name name,
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rtems_id *id
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);
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rtems_status_code rtems_timer_create( rtems_name name, rtems_id *id );
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DIRECTIVE STATUS CODES:
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.. list-table::
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:class: rtems-table
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.. rubric:: PARAMETERS:
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* - ``RTEMS_SUCCESSFUL``
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- timer created successfully
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* - ``RTEMS_INVALID_ADDRESS``
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- ``id`` is NULL
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* - ``RTEMS_INVALID_NAME``
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- invalid timer name
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* - ``RTEMS_TOO_MANY``
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- too many timers created
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``name``
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This parameter is the name of the timer.
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DESCRIPTION:
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This directive creates a timer. The assigned timer id is returned in id.
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This id is used to access the timer with other timer manager directives.
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For control and maintenance of the timer, RTEMS allocates a TMCB from the
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local TMCB free pool and initializes it.
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``id``
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This parameter is the pointer to an object identifier variable. The
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identifier of the created timer object will be stored in this variable, in
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case of a successful operation.
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NOTES:
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This directive will obtain the allocator mutex and may cause the calling
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task to be preempted.
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.. rubric:: DESCRIPTION:
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This directive creates a timer. The assigned object identifier is returned in
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``id``. This identifier is used to access the timer with other timer related
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directives.
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.. rubric:: RETURN VALUES:
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:c:macro:`RTEMS_SUCCESSFUL`
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The requested operation was successful.
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:c:macro:`RTEMS_INVALID_NAME`
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The timer name was invalid.
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:c:macro:`RTEMS_INVALID_ADDRESS`
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The ``id`` parameter was `NULL
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<https://en.cppreference.com/w/c/types/NULL>`_.
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:c:macro:`RTEMS_TOO_MANY`
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There was no inactive object available to create a new timer. The number
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of timers available to the application is configured through the
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:ref:`CONFIGURE_MAXIMUM_TIMERS` configuration option.
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.. rubric:: NOTES:
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This directive may cause the calling task to be preempted due to an obtain and
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release of the object allocator mutex.
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For control and maintenance of the timer, RTEMS allocates a :term:`TMCB` from
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the local TMCB free pool and initializes it.
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In SMP configurations, the processor of the currently executing thread
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determines the processor used for the created timer. During the life-time
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of the timer this processor is used to manage the timer internally.
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determines the processor used for the created timer. During the life-time of
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the timer this processor is used to manage the timer internally.
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.. Generated from spec:/rtems/timer/if/ident
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.. raw:: latex
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\clearpage
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.. index:: rtems_timer_ident()
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.. index:: obtain the ID of a timer
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.. index:: rtems_timer_ident
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.. _rtems_timer_ident:
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.. _InterfaceRtemsTimerIdent:
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TIMER_IDENT - Get ID of a timer
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-------------------------------
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rtems_timer_ident()
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-------------------
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Identifies a timer by the object name.
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.. rubric:: CALLING SEQUENCE:
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CALLING SEQUENCE:
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.. code-block:: c
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rtems_status_code rtems_timer_ident(
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rtems_name name,
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rtems_id *id
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);
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rtems_status_code rtems_timer_ident( rtems_name name, rtems_id *id );
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DIRECTIVE STATUS CODES:
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.. list-table::
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:class: rtems-table
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.. rubric:: PARAMETERS:
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* - ``RTEMS_SUCCESSFUL``
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- timer identified successfully
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* - ``RTEMS_INVALID_ADDRESS``
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- ``id`` is NULL
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* - ``RTEMS_INVALID_NAME``
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- timer name not found
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``name``
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This parameter is the object name to look up.
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DESCRIPTION:
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This directive obtains the timer id associated with the timer name to be
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acquired. If the timer name is not unique, then the timer id will match
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one of the timers with that name. However, this timer id is not guaranteed
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to correspond to the desired timer. The timer id is used to access this
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timer in other timer related directives.
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``id``
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This parameter is the pointer to an object identifier variable. The object
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identifier of an object with the specified name will be stored in this
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variable, in case of a successful operation.
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NOTES:
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This directive will not cause the running task to be preempted.
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.. rubric:: DESCRIPTION:
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This directive obtains the timer identifier associated with the timer name
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specified in ``name``.
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.. rubric:: RETURN VALUES:
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:c:macro:`RTEMS_SUCCESSFUL`
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The requested operation was successful.
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:c:macro:`RTEMS_INVALID_ADDRESS`
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The ``id`` parameter was `NULL
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<https://en.cppreference.com/w/c/types/NULL>`_.
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:c:macro:`RTEMS_INVALID_NAME`
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The ``name`` parameter was 0.
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:c:macro:`RTEMS_INVALID_NAME`
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There was no object with the specified name on the local node.
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.. rubric:: NOTES:
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If the timer name is not unique, then the timer identifier will match the first
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timer with that name in the search order. However, this timer identifier is
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not guaranteed to correspond to the desired timer. The timer identifier is
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used with other timer related directives to access the timer.
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The objects are searched from lowest to the highest index. Only the local node
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is searched.
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.. Generated from spec:/rtems/timer/if/cancel
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.. raw:: latex
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\clearpage
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.. index:: rtems_timer_cancel()
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.. index:: cancel a timer
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.. index:: rtems_timer_cancel
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.. _rtems_timer_cancel:
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.. _InterfaceRtemsTimerCancel:
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TIMER_CANCEL - Cancel a timer
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-----------------------------
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rtems_timer_cancel()
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--------------------
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Cancels the timer.
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.. rubric:: CALLING SEQUENCE:
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CALLING SEQUENCE:
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.. code-block:: c
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rtems_status_code rtems_timer_cancel(
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rtems_id id
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);
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rtems_status_code rtems_timer_cancel( rtems_id id );
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DIRECTIVE STATUS CODES:
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.. list-table::
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:class: rtems-table
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.. rubric:: PARAMETERS:
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* - ``RTEMS_SUCCESSFUL``
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- timer canceled successfully
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* - ``RTEMS_INVALID_ID``
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- invalid timer id
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``id``
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This parameter is the timer identifier.
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DESCRIPTION:
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This directive cancels the timer id. This timer will be reinitiated by the
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next invocation of ``rtems_timer_reset``, ``rtems_timer_fire_after``, or
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``rtems_timer_fire_when`` with this id.
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.. rubric:: DESCRIPTION:
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This directive cancels the timer specified in the ``id`` parameter. This timer
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will be reinitiated by the next invocation of :ref:`InterfaceRtemsTimerReset`,
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:ref:`InterfaceRtemsTimerFireAfter`, or :ref:`InterfaceRtemsTimerFireWhen` with
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the same timer identifier.
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.. rubric:: RETURN VALUES:
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:c:macro:`RTEMS_SUCCESSFUL`
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The requested operation was successful.
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:c:macro:`RTEMS_INVALID_ID`
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There was no timer associated with the identifier specified by ``id``.
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.. rubric:: NOTES:
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NOTES:
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This directive will not cause the running task to be preempted.
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.. Generated from spec:/rtems/timer/if/delete
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.. raw:: latex
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\clearpage
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.. index:: rtems_timer_delete()
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.. index:: delete a timer
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.. index:: rtems_timer_delete
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.. _rtems_timer_delete:
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.. _InterfaceRtemsTimerDelete:
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TIMER_DELETE - Delete a timer
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-----------------------------
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rtems_timer_delete()
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--------------------
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Deletes the timer.
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.. rubric:: CALLING SEQUENCE:
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CALLING SEQUENCE:
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.. code-block:: c
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rtems_status_code rtems_timer_delete(
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rtems_id id
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);
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rtems_status_code rtems_timer_delete( rtems_id id );
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DIRECTIVE STATUS CODES:
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.. list-table::
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:class: rtems-table
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.. rubric:: PARAMETERS:
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* - ``RTEMS_SUCCESSFUL``
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- timer deleted successfully
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* - ``RTEMS_INVALID_ID``
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- invalid timer id
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``id``
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This parameter is the timer identifier.
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DESCRIPTION:
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This directive deletes the timer specified by id. If the timer is running,
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it is automatically canceled. The TMCB for the deleted timer is reclaimed
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by RTEMS.
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.. rubric:: DESCRIPTION:
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NOTES:
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This directive will obtain the allocator mutex and may cause the calling
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task to be preempted.
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This directive deletes the timer specified by the ``id`` parameter. If the
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timer is running, it is automatically canceled.
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A timer can be deleted by a task other than the task which created the
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timer.
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.. rubric:: RETURN VALUES:
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:c:macro:`RTEMS_SUCCESSFUL`
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The requested operation was successful.
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:c:macro:`RTEMS_INVALID_ID`
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There was no timer associated with the identifier specified by ``id``.
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.. rubric:: NOTES:
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This directive may cause the calling task to be preempted due to an obtain and
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release of the object allocator mutex.
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The :term:`TMCB` for the deleted timer is reclaimed by RTEMS.
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A timer can be deleted by a task other than the task which created the timer.
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.. Generated from spec:/rtems/timer/if/fire-after
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.. raw:: latex
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\clearpage
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.. index:: rtems_timer_fire_after()
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.. index:: fire a timer after an interval
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.. index:: rtems_timer_fire_after
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.. _rtems_timer_fire_after:
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.. _InterfaceRtemsTimerFireAfter:
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TIMER_FIRE_AFTER - Fire timer after interval
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--------------------------------------------
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rtems_timer_fire_after()
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------------------------
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Fires the timer after the interval.
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.. rubric:: CALLING SEQUENCE:
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|
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CALLING SEQUENCE:
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.. code-block:: c
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rtems_status_code rtems_timer_fire_after(
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@ -194,42 +274,66 @@ CALLING SEQUENCE:
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void *user_data
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);
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DIRECTIVE STATUS CODES:
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.. list-table::
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:class: rtems-table
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.. rubric:: PARAMETERS:
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|
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* - ``RTEMS_SUCCESSFUL``
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- timer initiated successfully
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* - ``RTEMS_INVALID_ADDRESS``
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- ``routine`` is NULL
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* - ``RTEMS_INVALID_ID``
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- invalid timer id
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* - ``RTEMS_INVALID_NUMBER``
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- invalid interval
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``id``
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This parameter is the timer identifier.
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DESCRIPTION:
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This directive initiates the timer specified by id. If the timer is
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``ticks``
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This parameter is the interval until the routine is fired in clock ticks.
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``routine``
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This parameter is the routine to schedule.
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``user_data``
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This parameter is the argument passed to the routine when it is fired.
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.. rubric:: DESCRIPTION:
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|
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This directive initiates the timer specified by ``id``. If the timer is
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running, it is automatically canceled before being initiated. The timer is
|
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scheduled to fire after an interval ticks clock ticks has passed. When the
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timer fires, the timer service routine routine will be invoked with the
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argument user_data.
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scheduled to fire after an interval of clock ticks has passed specified by
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``ticks``. When the timer fires, the timer service routine ``routine`` will be
|
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invoked with the argument ``user_data`` in the context of the clock tick
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:term:`ISR`.
|
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.. rubric:: RETURN VALUES:
|
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|
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:c:macro:`RTEMS_SUCCESSFUL`
|
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The requested operation was successful.
|
||||
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||||
:c:macro:`RTEMS_INVALID_NUMBER`
|
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The ``ticks`` parameter was 0.
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:c:macro:`RTEMS_INVALID_ADDRESS`
|
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The ``routine`` parameter was `NULL
|
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<https://en.cppreference.com/w/c/types/NULL>`_.
|
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:c:macro:`RTEMS_INVALID_ID`
|
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There was no timer associated with the identifier specified by ``id``.
|
||||
|
||||
.. rubric:: NOTES:
|
||||
|
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NOTES:
|
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This directive will not cause the running task to be preempted.
|
||||
|
||||
.. Generated from spec:/rtems/timer/if/fire-when
|
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|
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.. raw:: latex
|
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|
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\clearpage
|
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|
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.. index:: fire a timer at wall time
|
||||
.. index:: rtems_timer_fire_when
|
||||
.. index:: rtems_timer_fire_when()
|
||||
.. index:: fire a timer at time of day
|
||||
|
||||
.. _rtems_timer_fire_when:
|
||||
.. _InterfaceRtemsTimerFireWhen:
|
||||
|
||||
TIMER_FIRE_WHEN - Fire timer when specified
|
||||
-------------------------------------------
|
||||
rtems_timer_fire_when()
|
||||
-----------------------
|
||||
|
||||
Fires the timer at the time of day.
|
||||
|
||||
.. rubric:: CALLING SEQUENCE:
|
||||
|
||||
CALLING SEQUENCE:
|
||||
.. code-block:: c
|
||||
|
||||
rtems_status_code rtems_timer_fire_when(
|
||||
@ -239,92 +343,147 @@ CALLING SEQUENCE:
|
||||
void *user_data
|
||||
);
|
||||
|
||||
DIRECTIVE STATUS CODES:
|
||||
.. list-table::
|
||||
:class: rtems-table
|
||||
.. rubric:: PARAMETERS:
|
||||
|
||||
* - ``RTEMS_SUCCESSFUL``
|
||||
- timer initiated successfully
|
||||
* - ``RTEMS_INVALID_ADDRESS``
|
||||
- ``routine`` is NULL
|
||||
* - ``RTEMS_INVALID_ADDRESS``
|
||||
- ``wall_time`` is NULL
|
||||
* - ``RTEMS_INVALID_ID``
|
||||
- invalid timer id
|
||||
* - ``RTEMS_NOT_DEFINED``
|
||||
- system date and time is not set
|
||||
* - ``RTEMS_INVALID_CLOCK``
|
||||
- invalid time of day
|
||||
``id``
|
||||
This parameter is the timer identifier.
|
||||
|
||||
DESCRIPTION:
|
||||
This directive initiates the timer specified by id. If the timer is
|
||||
``wall_time``
|
||||
This parameter is the time of day when the routine is fired.
|
||||
|
||||
``routine``
|
||||
This parameter is the routine to schedule.
|
||||
|
||||
``user_data``
|
||||
This parameter is the argument passed to the routine when it is fired.
|
||||
|
||||
.. rubric:: DESCRIPTION:
|
||||
|
||||
This directive initiates the timer specified by ``id``. If the timer is
|
||||
running, it is automatically canceled before being initiated. The timer is
|
||||
scheduled to fire at the time of day specified by wall_time. When the
|
||||
timer fires, the timer service routine routine will be invoked with the
|
||||
argument user_data.
|
||||
scheduled to fire at the time of day specified by ``wall_time``. When the
|
||||
timer fires, the timer service routine ``routine`` will be invoked with the
|
||||
argument ``user_data`` in the context of the clock tick :term:`ISR`.
|
||||
|
||||
.. rubric:: RETURN VALUES:
|
||||
|
||||
:c:macro:`RTEMS_SUCCESSFUL`
|
||||
The requested operation was successful.
|
||||
|
||||
:c:macro:`RTEMS_NOT_DEFINED`
|
||||
The system date and time was not set.
|
||||
|
||||
:c:macro:`RTEMS_INVALID_ADDRESS`
|
||||
The ``routine`` parameter was `NULL
|
||||
<https://en.cppreference.com/w/c/types/NULL>`_.
|
||||
|
||||
:c:macro:`RTEMS_INVALID_ADDRESS`
|
||||
The ``wall_time`` parameter was `NULL
|
||||
<https://en.cppreference.com/w/c/types/NULL>`_.
|
||||
|
||||
:c:macro:`RTEMS_INVALID_CLOCK`
|
||||
The time of day was invalid.
|
||||
|
||||
:c:macro:`RTEMS_INVALID_ID`
|
||||
There was no timer associated with the identifier specified by ``id``.
|
||||
|
||||
.. rubric:: NOTES:
|
||||
|
||||
NOTES:
|
||||
This directive will not cause the running task to be preempted.
|
||||
|
||||
.. Generated from spec:/rtems/timer/if/initiate-server
|
||||
|
||||
.. raw:: latex
|
||||
|
||||
\clearpage
|
||||
|
||||
.. index:: rtems_timer_initiate_server()
|
||||
.. index:: initiate the Timer Server
|
||||
.. index:: rtems_timer_initiate_server
|
||||
|
||||
.. _rtems_timer_initiate_server:
|
||||
.. _InterfaceRtemsTimerInitiateServer:
|
||||
|
||||
TIMER_INITIATE_SERVER - Initiate server for task-based timers
|
||||
-------------------------------------------------------------
|
||||
rtems_timer_initiate_server()
|
||||
-----------------------------
|
||||
|
||||
Initiates the Timer Server.
|
||||
|
||||
.. rubric:: CALLING SEQUENCE:
|
||||
|
||||
CALLING SEQUENCE:
|
||||
.. code-block:: c
|
||||
|
||||
rtems_status_code rtems_timer_initiate_server(
|
||||
uint32_t priority,
|
||||
uint32_t stack_size,
|
||||
rtems_task_priority priority,
|
||||
size_t stack_size,
|
||||
rtems_attribute attribute_set
|
||||
);
|
||||
|
||||
DIRECTIVE STATUS CODES:
|
||||
.. list-table::
|
||||
:class: rtems-table
|
||||
.. rubric:: PARAMETERS:
|
||||
|
||||
* - ``RTEMS_SUCCESSFUL``
|
||||
- Timer Server initiated successfully
|
||||
* - ``RTEMS_TOO_MANY``
|
||||
- too many tasks created
|
||||
``priority``
|
||||
This parameter is the task priority.
|
||||
|
||||
DESCRIPTION:
|
||||
This directive initiates the Timer Server task. This task is responsible
|
||||
for executing all timers initiated via the
|
||||
``rtems_timer_server_fire_after`` or ``rtems_timer_server_fire_when``
|
||||
directives.
|
||||
``stack_size``
|
||||
This parameter is the task stack size in bytes.
|
||||
|
||||
NOTES:
|
||||
This directive could cause the calling task to be preempted.
|
||||
``attribute_set``
|
||||
This parameter is the task attribute set.
|
||||
|
||||
The Timer Server task is created using the ``rtems_task_create`` service
|
||||
and must be accounted for when configuring the system.
|
||||
.. rubric:: DESCRIPTION:
|
||||
|
||||
Even through this directive invokes the ``rtems_task_create`` and
|
||||
``rtems_task_start`` directives, it should only fail due to resource
|
||||
allocation problems.
|
||||
This directive initiates the Timer Server task. This task is responsible for
|
||||
executing all timers initiated via the
|
||||
:ref:`InterfaceRtemsTimerServerFireAfter` or
|
||||
:ref:`InterfaceRtemsTimerServerFireWhen` directives.
|
||||
|
||||
.. rubric:: RETURN VALUES:
|
||||
|
||||
:c:macro:`RTEMS_SUCCESSFUL`
|
||||
The requested operation was successful.
|
||||
|
||||
:c:macro:`RTEMS_INCORRECT_STATE`
|
||||
The Timer Server was already initiated.
|
||||
|
||||
:c:macro:`RTEMS_INVALID_PRIORITY`
|
||||
The task priority was invalid.
|
||||
|
||||
:c:macro:`RTEMS_TOO_MANY`
|
||||
There was no inactive task object available to create the Timer Server
|
||||
task.
|
||||
|
||||
:c:macro:`RTEMS_UNSATISFIED`
|
||||
There was not enough memory to allocate the task storage area. The task
|
||||
storage area contains the task stack, the thread-local storage, and the
|
||||
floating point context.
|
||||
|
||||
:c:macro:`RTEMS_UNSATISFIED`
|
||||
One of the task create extensions failed to create the Timer Server task.
|
||||
|
||||
.. rubric:: NOTES:
|
||||
|
||||
This directive may cause the calling task to be preempted due to an obtain and
|
||||
release of the object allocator mutex.
|
||||
|
||||
The Timer Server task is created using the :ref:`InterfaceRtemsTaskCreate`
|
||||
directive and must be accounted for when configuring the system.
|
||||
|
||||
.. Generated from spec:/rtems/timer/if/server-fire-after
|
||||
|
||||
.. raw:: latex
|
||||
|
||||
\clearpage
|
||||
|
||||
.. index:: rtems_timer_server_fire_after()
|
||||
.. index:: fire task-based a timer after an interval
|
||||
.. index:: rtems_timer_server_fire_after
|
||||
|
||||
.. _rtems_timer_server_fire_after:
|
||||
.. _InterfaceRtemsTimerServerFireAfter:
|
||||
|
||||
TIMER_SERVER_FIRE_AFTER - Fire task-based timer after interval
|
||||
--------------------------------------------------------------
|
||||
rtems_timer_server_fire_after()
|
||||
-------------------------------
|
||||
|
||||
Fires the timer after the interval using the Timer Server.
|
||||
|
||||
.. rubric:: CALLING SEQUENCE:
|
||||
|
||||
CALLING SEQUENCE:
|
||||
.. code-block:: c
|
||||
|
||||
rtems_status_code rtems_timer_server_fire_after(
|
||||
@ -334,46 +493,69 @@ CALLING SEQUENCE:
|
||||
void *user_data
|
||||
);
|
||||
|
||||
DIRECTIVE STATUS CODES:
|
||||
.. list-table::
|
||||
:class: rtems-table
|
||||
.. rubric:: PARAMETERS:
|
||||
|
||||
* - ``RTEMS_SUCCESSFUL``
|
||||
- timer initiated successfully
|
||||
* - ``RTEMS_INVALID_ADDRESS``
|
||||
- ``routine`` is NULL
|
||||
* - ``RTEMS_INVALID_ID``
|
||||
- invalid timer id
|
||||
* - ``RTEMS_INVALID_NUMBER``
|
||||
- invalid interval
|
||||
* - ``RTEMS_INCORRECT_STATE``
|
||||
- Timer Server not initiated
|
||||
``id``
|
||||
This parameter is the timer identifier.
|
||||
|
||||
DESCRIPTION:
|
||||
This directive initiates the timer specified by id and specifies that when
|
||||
it fires it will be executed by the Timer Server.
|
||||
``ticks``
|
||||
This parameter is the interval until the routine is fired in clock ticks.
|
||||
|
||||
If the timer is running, it is automatically canceled before being
|
||||
initiated. The timer is scheduled to fire after an interval ticks clock
|
||||
ticks has passed. When the timer fires, the timer service routine routine
|
||||
will be invoked with the argument user_data.
|
||||
``routine``
|
||||
This parameter is the routine to schedule.
|
||||
|
||||
``user_data``
|
||||
This parameter is the argument passed to the routine when it is fired.
|
||||
|
||||
.. rubric:: DESCRIPTION:
|
||||
|
||||
This directive initiates the timer specified by ``id``. If the timer is
|
||||
running, it is automatically canceled before being initiated. The timer is
|
||||
scheduled to fire after an interval of clock ticks has passed specified by
|
||||
``ticks``. When the timer fires, the timer service routine ``routine`` will be
|
||||
invoked with the argument ``user_data`` in the context of the Timer Server
|
||||
task.
|
||||
|
||||
.. rubric:: RETURN VALUES:
|
||||
|
||||
:c:macro:`RTEMS_SUCCESSFUL`
|
||||
The requested operation was successful.
|
||||
|
||||
:c:macro:`RTEMS_INCORRECT_STATE`
|
||||
The Timer Server was not initiated.
|
||||
|
||||
:c:macro:`RTEMS_INVALID_NUMBER`
|
||||
The ``ticks`` parameter was 0.
|
||||
|
||||
:c:macro:`RTEMS_INVALID_ADDRESS`
|
||||
The ``routine`` parameter was `NULL
|
||||
<https://en.cppreference.com/w/c/types/NULL>`_.
|
||||
|
||||
:c:macro:`RTEMS_INVALID_ID`
|
||||
There was no timer associated with the identifier specified by ``id``.
|
||||
|
||||
.. rubric:: NOTES:
|
||||
|
||||
NOTES:
|
||||
This directive will not cause the running task to be preempted.
|
||||
|
||||
.. Generated from spec:/rtems/timer/if/server-fire-when
|
||||
|
||||
.. raw:: latex
|
||||
|
||||
\clearpage
|
||||
|
||||
.. index:: fire a task-based timer at wall time
|
||||
.. index:: rtems_timer_server_fire_when
|
||||
.. index:: rtems_timer_server_fire_when()
|
||||
.. index:: fire a task-based timer at time of day
|
||||
|
||||
.. _rtems_timer_server_fire_when:
|
||||
.. _InterfaceRtemsTimerServerFireWhen:
|
||||
|
||||
TIMER_SERVER_FIRE_WHEN - Fire task-based timer when specified
|
||||
-------------------------------------------------------------
|
||||
rtems_timer_server_fire_when()
|
||||
------------------------------
|
||||
|
||||
Fires the timer at the time of day using the Timer Server.
|
||||
|
||||
.. rubric:: CALLING SEQUENCE:
|
||||
|
||||
CALLING SEQUENCE:
|
||||
.. code-block:: c
|
||||
|
||||
rtems_status_code rtems_timer_server_fire_when(
|
||||
@ -383,81 +565,165 @@ CALLING SEQUENCE:
|
||||
void *user_data
|
||||
);
|
||||
|
||||
DIRECTIVE STATUS CODES:
|
||||
.. list-table::
|
||||
:class: rtems-table
|
||||
.. rubric:: PARAMETERS:
|
||||
|
||||
* - ``RTEMS_SUCCESSFUL``
|
||||
- timer initiated successfully
|
||||
* - ``RTEMS_INVALID_ADDRESS``
|
||||
- ``routine`` is NULL
|
||||
* - ``RTEMS_INVALID_ADDRESS``
|
||||
- ``wall_time`` is NULL
|
||||
* - ``RTEMS_INVALID_ID``
|
||||
- invalid timer id
|
||||
* - ``RTEMS_NOT_DEFINED``
|
||||
- system date and time is not set
|
||||
* - ``RTEMS_INVALID_CLOCK``
|
||||
- invalid time of day
|
||||
* - ``RTEMS_INCORRECT_STATE``
|
||||
- Timer Server not initiated
|
||||
``id``
|
||||
This parameter is the timer identifier.
|
||||
|
||||
DESCRIPTION:
|
||||
This directive initiates the timer specified by id and specifies that when
|
||||
it fires it will be executed by the Timer Server.
|
||||
``wall_time``
|
||||
This parameter is the time of day when the routine is fired.
|
||||
|
||||
If the timer is running, it is automatically canceled before being
|
||||
initiated. The timer is scheduled to fire at the time of day specified by
|
||||
wall_time. When the timer fires, the timer service routine routine will be
|
||||
invoked with the argument user_data.
|
||||
``routine``
|
||||
This parameter is the routine to schedule.
|
||||
|
||||
``user_data``
|
||||
This parameter is the argument passed to the routine when it is fired.
|
||||
|
||||
.. rubric:: DESCRIPTION:
|
||||
|
||||
This directive initiates the timer specified by ``id``. If the timer is
|
||||
running, it is automatically canceled before being initiated. The timer is
|
||||
scheduled to fire at the time of day specified by ``wall_time``. When the
|
||||
timer fires, the timer service routine ``routine`` will be invoked with the
|
||||
argument ``user_data`` in the context of the Timer Server task.
|
||||
|
||||
.. rubric:: RETURN VALUES:
|
||||
|
||||
:c:macro:`RTEMS_SUCCESSFUL`
|
||||
The requested operation was successful.
|
||||
|
||||
:c:macro:`RTEMS_INCORRECT_STATE`
|
||||
The Timer Server was not initiated.
|
||||
|
||||
:c:macro:`RTEMS_NOT_DEFINED`
|
||||
The system date and time was not set.
|
||||
|
||||
:c:macro:`RTEMS_INVALID_ADDRESS`
|
||||
The ``routine`` parameter was `NULL
|
||||
<https://en.cppreference.com/w/c/types/NULL>`_.
|
||||
|
||||
:c:macro:`RTEMS_INVALID_ADDRESS`
|
||||
The ``wall_time`` parameter was `NULL
|
||||
<https://en.cppreference.com/w/c/types/NULL>`_.
|
||||
|
||||
:c:macro:`RTEMS_INVALID_CLOCK`
|
||||
The time of day was invalid.
|
||||
|
||||
:c:macro:`RTEMS_INVALID_ID`
|
||||
There was no timer associated with the identifier specified by ``id``.
|
||||
|
||||
.. rubric:: NOTES:
|
||||
|
||||
NOTES:
|
||||
This directive will not cause the running task to be preempted.
|
||||
|
||||
.. Generated from spec:/rtems/timer/if/reset
|
||||
|
||||
.. raw:: latex
|
||||
|
||||
\clearpage
|
||||
|
||||
.. index:: rtems_timer_reset()
|
||||
.. index:: reset a timer
|
||||
.. index:: rtems_timer_reset
|
||||
|
||||
.. _rtems_timer_reset:
|
||||
.. _InterfaceRtemsTimerReset:
|
||||
|
||||
TIMER_RESET - Reset an interval timer
|
||||
-------------------------------------
|
||||
rtems_timer_reset()
|
||||
-------------------
|
||||
|
||||
Resets the timer.
|
||||
|
||||
.. rubric:: CALLING SEQUENCE:
|
||||
|
||||
CALLING SEQUENCE:
|
||||
.. code-block:: c
|
||||
|
||||
rtems_status_code rtems_timer_reset(
|
||||
rtems_id id
|
||||
);
|
||||
rtems_status_code rtems_timer_reset( rtems_id id );
|
||||
|
||||
DIRECTIVE STATUS CODES:
|
||||
.. list-table::
|
||||
:class: rtems-table
|
||||
.. rubric:: PARAMETERS:
|
||||
|
||||
* - ``RTEMS_SUCCESSFUL``
|
||||
- timer reset successfully
|
||||
* - ``RTEMS_INVALID_ID``
|
||||
- invalid timer id
|
||||
* - ``RTEMS_NOT_DEFINED``
|
||||
- attempted to reset a when or newly created timer
|
||||
``id``
|
||||
This parameter is the timer identifier.
|
||||
|
||||
DESCRIPTION:
|
||||
This directive resets the timer associated with id. This timer must have
|
||||
been previously initiated with either the ``rtems_timer_fire_after`` or
|
||||
``rtems_timer_server_fire_after`` directive. If active the timer is
|
||||
.. rubric:: DESCRIPTION:
|
||||
|
||||
This directive resets the timer specified by ``id``. This timer must have been
|
||||
previously initiated with either the :ref:`InterfaceRtemsTimerFireAfter` or
|
||||
:ref:`InterfaceRtemsTimerServerFireAfter` directive. If active the timer is
|
||||
canceled, after which the timer is reinitiated using the same interval and
|
||||
timer service routine which the original ``rtems_timer_fire_after`` or
|
||||
``rtems_timer_server_fire_after`` directive used.
|
||||
timer service routine which the original :ref:`InterfaceRtemsTimerFireAfter` or
|
||||
:ref:`InterfaceRtemsTimerServerFireAfter` directive used.
|
||||
|
||||
NOTES:
|
||||
If the timer has not been used or the last usage of this timer was by a
|
||||
``rtems_timer_fire_when`` or ``rtems_timer_server_fire_when`` directive,
|
||||
then the ``RTEMS_NOT_DEFINED`` error is returned.
|
||||
.. rubric:: RETURN VALUES:
|
||||
|
||||
Restarting a cancelled after timer results in the timer being reinitiated
|
||||
with its previous timer service routine and interval.
|
||||
:c:macro:`RTEMS_SUCCESSFUL`
|
||||
The requested operation was successful.
|
||||
|
||||
:c:macro:`RTEMS_INVALID_ID`
|
||||
There was no timer associated with the identifier specified by ``id``.
|
||||
|
||||
:c:macro:`RTEMS_NOT_DEFINED`
|
||||
The timer was not of the interval class.
|
||||
|
||||
.. rubric:: NOTES:
|
||||
|
||||
This directive will not cause the running task to be preempted.
|
||||
|
||||
If the timer has not been used or the last usage of this timer was by a
|
||||
:ref:`InterfaceRtemsTimerFireWhen` or :ref:`InterfaceRtemsTimerServerFireWhen`
|
||||
directive, then the :c:macro:`RTEMS_NOT_DEFINED` error is returned.
|
||||
|
||||
Restarting a cancelled after timer results in the timer being reinitiated with
|
||||
its previous timer service routine and interval.
|
||||
|
||||
.. Generated from spec:/rtems/timer/if/get-information
|
||||
|
||||
.. raw:: latex
|
||||
|
||||
\clearpage
|
||||
|
||||
.. index:: rtems_timer_get_information()
|
||||
|
||||
.. _InterfaceRtemsTimerGetInformation:
|
||||
|
||||
rtems_timer_get_information()
|
||||
-----------------------------
|
||||
|
||||
Gets information about the timer.
|
||||
|
||||
.. rubric:: CALLING SEQUENCE:
|
||||
|
||||
.. code-block:: c
|
||||
|
||||
rtems_status_code rtems_timer_get_information(
|
||||
rtems_id id,
|
||||
rtems_timer_information *the_info
|
||||
);
|
||||
|
||||
.. rubric:: PARAMETERS:
|
||||
|
||||
``id``
|
||||
This parameter is the timer identifier.
|
||||
|
||||
``the_info``
|
||||
This parameter is the pointer to a timer information variable. The
|
||||
information about the timer will be stored in this variable, in case of a
|
||||
successful operation.
|
||||
|
||||
.. rubric:: DESCRIPTION:
|
||||
|
||||
This directive returns information about the timer.
|
||||
|
||||
.. rubric:: RETURN VALUES:
|
||||
|
||||
:c:macro:`RTEMS_SUCCESSFUL`
|
||||
The requested operation was successful.
|
||||
|
||||
:c:macro:`RTEMS_INVALID_ADDRESS`
|
||||
The ``the_info`` parameter was `NULL
|
||||
<https://en.cppreference.com/w/c/types/NULL>`_.
|
||||
|
||||
:c:macro:`RTEMS_INVALID_ID`
|
||||
There was no timer associated with the identifier specified by ``id``.
|
||||
|
||||
.. rubric:: NOTES:
|
||||
|
||||
This directive will not cause the running task to be preempted.
|
||||
|
||||
@ -1,29 +1,62 @@
|
||||
.. SPDX-License-Identifier: CC-BY-SA-4.0
|
||||
|
||||
.. Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
|
||||
.. 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://docs.rtems.org/branches/master/user/support/bugs.html
|
||||
..
|
||||
.. For information on updating and regenerating please refer to:
|
||||
..
|
||||
.. https://docs.rtems.org/branches/master/eng/req/howto.html
|
||||
|
||||
.. Generated from spec:/rtems/timer/if/group
|
||||
|
||||
.. _TimerManagerIntroduction:
|
||||
|
||||
Introduction
|
||||
============
|
||||
|
||||
The timer manager provides support for timer
|
||||
facilities. The directives provided by the timer manager are:
|
||||
.. The following list was generated from:
|
||||
.. spec:/rtems/timer/if/create
|
||||
.. spec:/rtems/timer/if/ident
|
||||
.. spec:/rtems/timer/if/cancel
|
||||
.. spec:/rtems/timer/if/delete
|
||||
.. spec:/rtems/timer/if/fire-after
|
||||
.. spec:/rtems/timer/if/fire-when
|
||||
.. spec:/rtems/timer/if/initiate-server
|
||||
.. spec:/rtems/timer/if/server-fire-after
|
||||
.. spec:/rtems/timer/if/server-fire-when
|
||||
.. spec:/rtems/timer/if/reset
|
||||
.. spec:/rtems/timer/if/get-information
|
||||
|
||||
- :ref:`rtems_timer_create`
|
||||
The Timer Manager provides support for timer facilities. The directives
|
||||
provided by the Timer Manager are:
|
||||
|
||||
- :ref:`rtems_timer_ident`
|
||||
* :ref:`InterfaceRtemsTimerCreate` - Creates a timer.
|
||||
|
||||
- :ref:`rtems_timer_cancel`
|
||||
* :ref:`InterfaceRtemsTimerIdent` - Identifies a timer by the object name.
|
||||
|
||||
- :ref:`rtems_timer_delete`
|
||||
* :ref:`InterfaceRtemsTimerCancel` - Cancels the timer.
|
||||
|
||||
- :ref:`rtems_timer_fire_after`
|
||||
* :ref:`InterfaceRtemsTimerDelete` - Deletes the timer.
|
||||
|
||||
- :ref:`rtems_timer_fire_when`
|
||||
* :ref:`InterfaceRtemsTimerFireAfter` - Fires the timer after the interval.
|
||||
|
||||
- :ref:`rtems_timer_initiate_server`
|
||||
* :ref:`InterfaceRtemsTimerFireWhen` - Fires the timer at the time of day.
|
||||
|
||||
- :ref:`rtems_timer_server_fire_after`
|
||||
* :ref:`InterfaceRtemsTimerInitiateServer` - Initiates the Timer Server.
|
||||
|
||||
- :ref:`rtems_timer_server_fire_when`
|
||||
* :ref:`InterfaceRtemsTimerServerFireAfter` - Fires the timer after the
|
||||
interval using the Timer Server.
|
||||
|
||||
- :ref:`rtems_timer_reset`
|
||||
* :ref:`InterfaceRtemsTimerServerFireWhen` - Fires the timer at the time of day
|
||||
using the Timer Server.
|
||||
|
||||
* :ref:`InterfaceRtemsTimerReset` - Resets the timer.
|
||||
|
||||
* :ref:`InterfaceRtemsTimerGetInformation` - Gets information about the timer.
|
||||
|
||||
Loading…
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Reference in New Issue
Block a user