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c-user: Generate rate-monotonic manager docs
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
2ce0fe2b8e
commit
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.. SPDX-License-Identifier: CC-BY-SA-4.0
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.. SPDX-License-Identifier: CC-BY-SA-4.0
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.. Copyright (C) 2020, 2021 embedded brains GmbH (http://www.embedded-brains.de)
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.. Copyright (C) 2017 Kuan-Hsun Chen
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.. Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
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.. Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
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.. Copyright (C) 2017 Kuan-Hsun Chen.
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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://www.rtems.org/bugs.html
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..
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.. For information on updating and regenerating please refer to the How-To
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.. section in the Software Requirements Engineering chapter of the
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.. RTEMS Software Engineering manual. The manual is provided as a part of
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.. a release. For development sources please refer to the online
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.. documentation at:
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..
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.. https://docs.rtems.org
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.. _RateMonotonicManagerDirectives:
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Directives
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Directives
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==========
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==========
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This section details the rate monotonic manager's directives. A subsection is
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This section details the directives of the Rate-Monotonic Manager. A subsection
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dedicated to each of this manager's directives and describes the calling
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is dedicated to each of this manager's directives and lists the calling
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sequence, related constants, usage, and status codes.
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sequence, parameters, description, return values, and notes of the directive.
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.. Generated from spec:/rtems/ratemon/if/create
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.. raw:: latex
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.. raw:: latex
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\clearpage
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\clearpage
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.. index:: rtems_rate_monotonic_create()
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.. index:: create a period
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.. index:: create a period
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.. index:: rtems_rate_monotonic_create
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.. _rtems_rate_monotonic_create:
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.. _InterfaceRtemsRateMonotonicCreate:
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RATE_MONOTONIC_CREATE - Create a rate monotonic period
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rtems_rate_monotonic_create()
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------------------------------------------------------
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-----------------------------
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Creates a period.
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.. rubric:: CALLING SEQUENCE:
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CALLING SEQUENCE:
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.. code-block:: c
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.. code-block:: c
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rtems_status_code rtems_rate_monotonic_create(
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rtems_status_code rtems_rate_monotonic_create( rtems_name name, rtems_id *id );
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rtems_name name,
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rtems_id *id
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);
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DIRECTIVE STATUS CODES:
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.. rubric:: PARAMETERS:
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.. list-table::
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:class: rtems-table
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* - ``RTEMS_SUCCESSFUL``
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``name``
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- rate monotonic period created successfully
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This parameter is the object name of the period.
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* - ``RTEMS_INVALID_NAME``
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- invalid period name
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* - ``RTEMS_TOO_MANY``
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- too many periods created
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DESCRIPTION:
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``id``
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This directive creates a rate monotonic period. The assigned rate
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This parameter is the pointer to an object identifier variable. When the
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monotonic id is returned in id. This id is used to access the period with
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directive call is successful, the identifier of the created period will be
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other rate monotonic manager directives. For control and maintenance of
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stored in this variable.
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the rate monotonic period, RTEMS allocates a PCB from the local PCB free
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pool and initializes it.
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NOTES:
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.. rubric:: DESCRIPTION:
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This directive may cause the calling task to be preempted due to an
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obtain and release of the object allocator mutex.
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This directive creates a period which resides on the local node. The period
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has the user-defined object name specified in ``name`` The assigned object
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identifier is returned in ``id``. This identifier is used to access the period
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with other rate monotonic related 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 ``name`` parameter was invalid.
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:c:macro:`RTEMS_TOO_MANY`
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There was no inactive object available to create a period. The number of
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periods available to the application is configured through the
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:ref:`CONFIGURE_MAXIMUM_PERIODS` application configuration option.
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.. rubric:: NOTES:
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The calling task is registered as the owner of the created period. Some
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directives can be only used by this task for the created period.
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For control and maintenance of the period, RTEMS allocates a :term:`PCB` from
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the local PCB free pool and initializes it.
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.. rubric:: CONSTRAINTS:
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The following constraints apply to this directive:
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* The directive may be called from within device driver initialization context.
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* The directive may be called from within task context.
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* The directive may obtain and release the object allocator mutex. This may
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cause the calling task to be preempted.
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* The number of periods available to the application is configured through the
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:ref:`CONFIGURE_MAXIMUM_PERIODS` application configuration option.
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* Where the object class corresponding to the directive is configured to use
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unlimited objects, the directive may allocate memory from the RTEMS
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Workspace.
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.. Generated from spec:/rtems/ratemon/if/ident
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.. raw:: latex
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.. raw:: latex
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\clearpage
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\clearpage
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.. index:: get ID of a period
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.. index:: rtems_rate_monotonic_ident()
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.. index:: obtain ID of a period
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.. index:: rtems_rate_monotonic_ident
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.. _rtems_rate_monotonic_ident:
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.. _InterfaceRtemsRateMonotonicIdent:
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RATE_MONOTONIC_IDENT - Get ID of a period
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rtems_rate_monotonic_ident()
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-----------------------------------------
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----------------------------
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Identifies a period 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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.. code-block:: c
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rtems_status_code rtems_rate_monotonic_ident(
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rtems_status_code rtems_rate_monotonic_ident( rtems_name name, rtems_id *id );
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rtems_name name,
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rtems_id *id
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);
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DIRECTIVE STATUS CODES:
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.. rubric:: PARAMETERS:
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.. list-table::
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:class: rtems-table
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* - ``RTEMS_SUCCESSFUL``
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``name``
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- period identified successfully
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This parameter is the object name to look up.
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* - ``RTEMS_INVALID_NAME``
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- period name not found
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DESCRIPTION:
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``id``
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This directive obtains the period id associated with the period name to be
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This parameter is the pointer to an object identifier variable. When the
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acquired. If the period name is not unique, then the period id will match
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directive call is successful, the object identifier of an object with the
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one of the periods with that name. However, this period id is not
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specified name will be stored in this variable.
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guaranteed to correspond to the desired period. The period id is used to
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access this period in other rate monotonic manager directives.
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NOTES:
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.. rubric:: DESCRIPTION:
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This directive will not cause the running task to be preempted.
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This directive obtains a period identifier associated with the period 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 period name is not unique, then the period identifier will match the
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first period with that name in the search order. However, this period
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identifier is not guaranteed to correspond to the desired period.
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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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The period identifier is used with other rate monotonic related directives to
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access the period.
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.. rubric:: CONSTRAINTS:
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The following constraints apply to this directive:
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* The directive may be called from within any runtime context.
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* The directive will not cause the calling task to be preempted.
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.. Generated from spec:/rtems/ratemon/if/cancel
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.. raw:: latex
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.. raw:: latex
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\clearpage
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\clearpage
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.. index:: rtems_rate_monotonic_cancel()
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.. index:: cancel a period
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.. index:: cancel a period
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.. index:: rtems_rate_monotonic_cancel
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.. _rtems_rate_monotonic_cancel:
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.. _InterfaceRtemsRateMonotonicCancel:
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RATE_MONOTONIC_CANCEL - Cancel a period
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rtems_rate_monotonic_cancel()
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---------------------------------------
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-----------------------------
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Cancels the period.
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.. rubric:: CALLING SEQUENCE:
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CALLING SEQUENCE:
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.. code-block:: c
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.. code-block:: c
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rtems_status_code rtems_rate_monotonic_cancel(
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rtems_status_code rtems_rate_monotonic_cancel( rtems_id id );
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rtems_id id
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);
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DIRECTIVE STATUS CODES:
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.. rubric:: PARAMETERS:
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.. list-table::
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:class: rtems-table
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* - ``RTEMS_SUCCESSFUL``
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``id``
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- period canceled successfully
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This parameter is the rate monotonic period identifier.
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* - ``RTEMS_INVALID_ID``
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- invalid rate monotonic period id
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* - ``RTEMS_NOT_OWNER_OF_RESOURCE``
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- rate monotonic period not created by calling task
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DESCRIPTION:
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.. rubric:: DESCRIPTION:
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This directive cancels the rate monotonic period id. This period will be
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This directive cancels the rate monotonic period specified by ``id``. This
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reinitiated by the next invocation of ``rtems_rate_monotonic_period``
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period may be reinitiated by the next invocation of
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with id.
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:ref:`InterfaceRtemsRateMonotonicPeriod`.
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NOTES:
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.. rubric:: RETURN VALUES:
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This directive will not cause the running task to be preempted.
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The rate monotonic period specified by id must have been created by the
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:c:macro:`RTEMS_SUCCESSFUL`
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calling task.
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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 rate monotonic period associated with the identifier specified
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by ``id``.
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:c:macro:`RTEMS_NOT_OWNER_OF_RESOURCE`
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The rate monotonic period was not created by the calling task.
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.. rubric:: CONSTRAINTS:
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The following constraints apply to this directive:
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* The directive may be called from within task context.
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* The directive will not cause the calling task to be preempted.
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* The directive may be used exclusively by the task which created the
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associated object.
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.. Generated from spec:/rtems/ratemon/if/delete
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|
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.. raw:: latex
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.. raw:: latex
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|
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\clearpage
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\clearpage
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.. index:: rtems_rate_monotonic_delete
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.. index:: rtems_rate_monotonic_delete()
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.. index:: delete a period
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.. index:: delete a period
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.. _rtems_rate_monotonic_delete:
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.. _InterfaceRtemsRateMonotonicDelete:
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RATE_MONOTONIC_DELETE - Delete a rate monotonic period
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rtems_rate_monotonic_delete()
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------------------------------------------------------
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-----------------------------
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Deletes the period.
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|
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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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.. code-block:: c
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|
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rtems_status_code rtems_rate_monotonic_delete(
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rtems_status_code rtems_rate_monotonic_delete( rtems_id id );
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rtems_id id
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);
|
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|
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DIRECTIVE STATUS CODES:
|
.. rubric:: PARAMETERS:
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.. list-table::
|
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:class: rtems-table
|
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|
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* - ``RTEMS_SUCCESSFUL``
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``id``
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- period deleted successfully
|
This parameter is the period identifier.
|
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* - ``RTEMS_INVALID_ID``
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- invalid rate monotonic period id
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|
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DESCRIPTION:
|
.. rubric:: DESCRIPTION:
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|
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This directive deletes the rate monotonic period specified by id. If the
|
This directive deletes the period specified by ``id``. If the period is
|
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period is running, it is automatically canceled. The PCB for the deleted
|
running, it is automatically canceled.
|
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period is reclaimed by RTEMS.
|
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|
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NOTES:
|
.. rubric:: RETURN VALUES:
|
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This directive may cause the calling task to be preempted due to an
|
|
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obtain and release of the object allocator mutex.
|
|
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|
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A rate monotonic period can be deleted by a task other than the task which
|
:c:macro:`RTEMS_SUCCESSFUL`
|
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created the period.
|
The requested operation was successful.
|
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|
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|
:c:macro:`RTEMS_INVALID_ID`
|
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|
There was no period associated with the identifier specified by ``id``.
|
||||||
|
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|
.. rubric:: NOTES:
|
||||||
|
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|
The :term:`PCB` for the deleted period is reclaimed by RTEMS.
|
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|
|
||||||
|
.. rubric:: CONSTRAINTS:
|
||||||
|
|
||||||
|
The following constraints apply to this directive:
|
||||||
|
|
||||||
|
* The directive may be called from within device driver initialization context.
|
||||||
|
|
||||||
|
* The directive may be called from within task context.
|
||||||
|
|
||||||
|
* The directive may obtain and release the object allocator mutex. This may
|
||||||
|
cause the calling task to be preempted.
|
||||||
|
|
||||||
|
* The calling task does not have to be the task that created the object. Any
|
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|
local task that knows the object identifier can delete the object.
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||||||
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|
* Where the object class corresponding to the directive is configured to use
|
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|
unlimited objects, the directive may free memory to the RTEMS Workspace.
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||||||
|
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||||||
|
.. Generated from spec:/rtems/ratemon/if/period
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|
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||||||
.. raw:: latex
|
.. raw:: latex
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||||||
|
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\clearpage
|
\clearpage
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|
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|
.. index:: rtems_rate_monotonic_period()
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.. index:: conclude current period
|
.. index:: conclude current period
|
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.. index:: start current period
|
.. index:: start current period
|
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.. index:: period initiation
|
.. index:: period initiation
|
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.. index:: rtems_rate_monotonic_period
|
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|
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.. _rtems_rate_monotonic_period:
|
.. _InterfaceRtemsRateMonotonicPeriod:
|
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|
|
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RATE_MONOTONIC_PERIOD - Conclude current/Start next period
|
rtems_rate_monotonic_period()
|
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----------------------------------------------------------
|
-----------------------------
|
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|
|
||||||
|
Concludes the current period and start the next period, or gets the period
|
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|
status.
|
||||||
|
|
||||||
|
.. rubric:: CALLING SEQUENCE:
|
||||||
|
|
||||||
CALLING SEQUENCE:
|
|
||||||
.. code-block:: c
|
.. code-block:: c
|
||||||
|
|
||||||
rtems_status_code rtems_rate_monotonic_period(
|
rtems_status_code rtems_rate_monotonic_period(
|
||||||
@ -197,53 +322,78 @@ CALLING SEQUENCE:
|
|||||||
rtems_interval length
|
rtems_interval length
|
||||||
);
|
);
|
||||||
|
|
||||||
DIRECTIVE STATUS CODES:
|
.. rubric:: PARAMETERS:
|
||||||
.. list-table::
|
|
||||||
:class: rtems-table
|
|
||||||
|
|
||||||
* - ``RTEMS_SUCCESSFUL``
|
``id``
|
||||||
- period initiated successfully
|
This parameter is the rate monotonic period identifier.
|
||||||
* - ``RTEMS_INVALID_ID``
|
|
||||||
- invalid rate monotonic period id
|
|
||||||
* - ``RTEMS_NOT_OWNER_OF_RESOURCE``
|
|
||||||
- period not created by calling task
|
|
||||||
* - ``RTEMS_NOT_DEFINED``
|
|
||||||
- period has never been initiated (only possible when period is set to PERIOD_STATUS)
|
|
||||||
* - ``RTEMS_TIMEOUT``
|
|
||||||
- period has expired
|
|
||||||
|
|
||||||
DESCRIPTION:
|
``length``
|
||||||
This directive initiates the rate monotonic period id with a length of
|
This parameter is the period length in :term:`clock ticks <clock tick>` or
|
||||||
period ticks. If id is running, then the calling task will block for the
|
:c:macro:`RTEMS_PERIOD_STATUS` to get the period status.
|
||||||
remainder of the period before reinitiating the period with the specified
|
|
||||||
period. If id was not running (either expired or never initiated), the
|
|
||||||
period is immediately initiated and the directive returns immediately.
|
|
||||||
If id has expired its period, the postponed job will be released immediately
|
|
||||||
and the following calls of this directive will release postponed
|
|
||||||
jobs until there is no more deadline miss.
|
|
||||||
|
|
||||||
If invoked with a period of ``RTEMS_PERIOD_STATUS`` ticks, the current
|
.. rubric:: DESCRIPTION:
|
||||||
state of id will be returned. The directive status indicates the current
|
|
||||||
state of the period. This does not alter the state or period of the
|
|
||||||
period.
|
|
||||||
|
|
||||||
NOTES:
|
This directive initiates the rate monotonic period specified by ``id`` with a
|
||||||
This directive will not cause the running task to be preempted.
|
length of period ticks specified by ``length``. If the period is running, then
|
||||||
|
the calling task will block for the remainder of the period before reinitiating
|
||||||
|
the period with the specified period length. If the period was not running
|
||||||
|
(either expired or never initiated), the period is immediately initiated and
|
||||||
|
the directive returns immediately. If the period has expired, the postponed
|
||||||
|
job will be released immediately and the following calls of this directive will
|
||||||
|
release postponed jobs until there is no more deadline miss.
|
||||||
|
|
||||||
|
If invoked with a period length of :c:macro:`RTEMS_PERIOD_STATUS` ticks, the
|
||||||
|
current state of the period will be returned. The directive status indicates
|
||||||
|
the current state of the period. This does not alter the state or period
|
||||||
|
length of the period.
|
||||||
|
|
||||||
|
.. rubric:: RETURN VALUES:
|
||||||
|
|
||||||
|
:c:macro:`RTEMS_SUCCESSFUL`
|
||||||
|
The requested operation was successful.
|
||||||
|
|
||||||
|
:c:macro:`RTEMS_INVALID_ID`
|
||||||
|
There was no rate monotonic period associated with the identifier specified
|
||||||
|
by ``id``.
|
||||||
|
|
||||||
|
:c:macro:`RTEMS_NOT_OWNER_OF_RESOURCE`
|
||||||
|
The rate monotonic period was not created by the calling task.
|
||||||
|
|
||||||
|
:c:macro:`RTEMS_NOT_DEFINED`
|
||||||
|
The rate monotonic period has never been initiated (only possible when the
|
||||||
|
``length`` parameter was equal to :c:macro:`RTEMS_PERIOD_STATUS`).
|
||||||
|
|
||||||
|
:c:macro:`RTEMS_TIMEOUT`
|
||||||
|
The rate monotonic period has expired.
|
||||||
|
|
||||||
|
.. rubric:: CONSTRAINTS:
|
||||||
|
|
||||||
|
The following constraints apply to this directive:
|
||||||
|
|
||||||
|
* The directive may be called from within task context.
|
||||||
|
|
||||||
|
* The directive may be used exclusively by the task which created the
|
||||||
|
associated object.
|
||||||
|
|
||||||
|
.. Generated from spec:/rtems/ratemon/if/get-status
|
||||||
|
|
||||||
.. raw:: latex
|
.. raw:: latex
|
||||||
|
|
||||||
\clearpage
|
\clearpage
|
||||||
|
|
||||||
|
.. index:: rtems_rate_monotonic_get_status()
|
||||||
.. index:: get status of period
|
.. index:: get status of period
|
||||||
.. index:: obtain status of period
|
.. index:: obtain status of period
|
||||||
.. index:: rtems_rate_monotonic_get_status
|
|
||||||
|
|
||||||
.. _rtems_rate_monotonic_get_status:
|
.. _InterfaceRtemsRateMonotonicGetStatus:
|
||||||
|
|
||||||
RATE_MONOTONIC_GET_STATUS - Obtain status from a period
|
rtems_rate_monotonic_get_status()
|
||||||
-------------------------------------------------------
|
---------------------------------
|
||||||
|
|
||||||
|
Gets the detailed status of the period.
|
||||||
|
|
||||||
|
.. rubric:: CALLING SEQUENCE:
|
||||||
|
|
||||||
CALLING SEQUENCE:
|
|
||||||
.. code-block:: c
|
.. code-block:: c
|
||||||
|
|
||||||
rtems_status_code rtems_rate_monotonic_get_status(
|
rtems_status_code rtems_rate_monotonic_get_status(
|
||||||
@ -251,224 +401,319 @@ CALLING SEQUENCE:
|
|||||||
rtems_rate_monotonic_period_status *status
|
rtems_rate_monotonic_period_status *status
|
||||||
);
|
);
|
||||||
|
|
||||||
DIRECTIVE STATUS CODES:
|
.. rubric:: PARAMETERS:
|
||||||
.. list-table::
|
|
||||||
:class: rtems-table
|
|
||||||
|
|
||||||
* - ``RTEMS_SUCCESSFUL``
|
``id``
|
||||||
- period status retrieved successfully
|
This parameter is the rate monotonic period identifier.
|
||||||
* - ``RTEMS_INVALID_ID``
|
|
||||||
- invalid rate monotonic period id
|
|
||||||
* - ``RTEMS_INVALID_ADDRESS``
|
|
||||||
- invalid address of status
|
|
||||||
* - ``RTEMS_NOT_DEFINED``
|
|
||||||
- no status is available due to the cpu usage of the task having been
|
|
||||||
reset since the period initiated
|
|
||||||
|
|
||||||
*DESCRIPTION:
|
``status``
|
||||||
This directive returns status information associated with the rate
|
This parameter is the pointer to a
|
||||||
monotonic period id in the following data structure:
|
:c:type:`rtems_rate_monotonic_period_status` variable. When the directive
|
||||||
|
call is successful, the detailed period status will be stored in this
|
||||||
|
variable.
|
||||||
|
|
||||||
.. index:: rtems_rate_monotonic_period_status
|
.. rubric:: DESCRIPTION:
|
||||||
|
|
||||||
.. code-block:: c
|
This directive returns the detailed status of the rate monotonic period
|
||||||
|
specified by ``id``. The detailed status of the period will be returned in the
|
||||||
|
members of the period status object referenced by ``status``:
|
||||||
|
|
||||||
typedef struct {
|
* The ``owner`` member is set to the identifier of the owner task of the
|
||||||
rtems_id owner;
|
period.
|
||||||
rtems_rate_monotonic_period_states state;
|
|
||||||
rtems_rate_monotonic_period_time_t since_last_period;
|
|
||||||
rtems_thread_cpu_usage_t executed_since_last_period;
|
|
||||||
uint32_t postponed_jobs_count;
|
|
||||||
} rtems_rate_monotonic_period_status;
|
|
||||||
|
|
||||||
.. COMMENT: RATE_MONOTONIC_INACTIVE does not have RTEMS in front of it.
|
* The ``state`` member is set to the current state of the period.
|
||||||
|
|
||||||
A configure time option can be used to select whether the time information
|
* The ``postponed_jobs_count`` member is set to the count of jobs which are not
|
||||||
is given in ticks or seconds and nanoseconds. The default is seconds and
|
|
||||||
nanoseconds. If the period's state is ``RATE_MONOTONIC_INACTIVE``, both
|
|
||||||
time values will be set to 0. Otherwise, both time values will contain
|
|
||||||
time information since the last invocation of the
|
|
||||||
``rtems_rate_monotonic_period`` directive. More specifically, the
|
|
||||||
since_last_period value contains the elapsed time which has occurred since
|
|
||||||
the last invocation of the ``rtems_rate_monotonic_period`` directive and
|
|
||||||
the ``executed_since_last_period`` contains how much processor time the
|
|
||||||
owning task has consumed since the invocation of the
|
|
||||||
``rtems_rate_monotonic_period`` directive. In addition, the
|
|
||||||
``postponed_jobs_count value`` contains the count of jobs which are not
|
|
||||||
released yet.
|
released yet.
|
||||||
|
|
||||||
NOTES:
|
* If the current state of the period is :c:macro:`RATE_MONOTONIC_INACTIVE`, the
|
||||||
This directive will not cause the running task to be preempted.
|
``since_last_period`` and ``executed_since_last_period`` members will be set
|
||||||
|
to zero. Otherwise, both members will contain time information since the
|
||||||
|
last successful invocation of the :ref:`InterfaceRtemsRateMonotonicPeriod`
|
||||||
|
directive by the owner task. More specifically, the ``since_last_period``
|
||||||
|
member will be set to the time elapsed since the last successful invocation.
|
||||||
|
The ``executed_since_last_period`` member will be set to the processor time
|
||||||
|
consumed by the owner task since the last successful invocation.
|
||||||
|
|
||||||
|
.. rubric:: RETURN VALUES:
|
||||||
|
|
||||||
|
:c:macro:`RTEMS_SUCCESSFUL`
|
||||||
|
The requested operation was successful.
|
||||||
|
|
||||||
|
:c:macro:`RTEMS_INVALID_ID`
|
||||||
|
There was no rate monotonic period associated with the identifier specified
|
||||||
|
by ``id``.
|
||||||
|
|
||||||
|
:c:macro:`RTEMS_INVALID_ADDRESS`
|
||||||
|
The ``status`` parameter was `NULL
|
||||||
|
<https://en.cppreference.com/w/c/types/NULL>`_.
|
||||||
|
|
||||||
|
:c:macro:`RTEMS_NOT_DEFINED`
|
||||||
|
There was no status available due to a reset of the processor time usage of
|
||||||
|
the owner task of the period.
|
||||||
|
|
||||||
|
.. rubric:: CONSTRAINTS:
|
||||||
|
|
||||||
|
The following constraints apply to this directive:
|
||||||
|
|
||||||
|
* The directive may be called from within task context.
|
||||||
|
|
||||||
|
* The directive may be called from within interrupt context.
|
||||||
|
|
||||||
|
* The directive will not cause the calling task to be preempted.
|
||||||
|
|
||||||
|
.. Generated from spec:/rtems/ratemon/if/get-statistics
|
||||||
|
|
||||||
.. raw:: latex
|
.. raw:: latex
|
||||||
|
|
||||||
\clearpage
|
\clearpage
|
||||||
|
|
||||||
|
.. index:: rtems_rate_monotonic_get_statistics()
|
||||||
.. index:: get statistics of period
|
.. index:: get statistics of period
|
||||||
.. index:: obtain statistics of period
|
.. index:: obtain statistics of period
|
||||||
.. index:: rtems_rate_monotonic_get_statistics
|
|
||||||
|
|
||||||
.. _rtems_rate_monotonic_get_statistics:
|
.. _InterfaceRtemsRateMonotonicGetStatistics:
|
||||||
|
|
||||||
RATE_MONOTONIC_GET_STATISTICS - Obtain statistics from a period
|
rtems_rate_monotonic_get_statistics()
|
||||||
---------------------------------------------------------------
|
-------------------------------------
|
||||||
|
|
||||||
|
Gets the statistics of the period.
|
||||||
|
|
||||||
|
.. rubric:: CALLING SEQUENCE:
|
||||||
|
|
||||||
CALLING SEQUENCE:
|
|
||||||
.. code-block:: c
|
.. code-block:: c
|
||||||
|
|
||||||
rtems_status_code rtems_rate_monotonic_get_statistics(
|
rtems_status_code rtems_rate_monotonic_get_statistics(
|
||||||
rtems_id id,
|
rtems_id id,
|
||||||
rtems_rate_monotonic_period_statistics *statistics
|
rtems_rate_monotonic_period_statistics *status
|
||||||
);
|
);
|
||||||
|
|
||||||
DIRECTIVE STATUS CODES:
|
.. rubric:: PARAMETERS:
|
||||||
.. list-table::
|
|
||||||
:class: rtems-table
|
|
||||||
|
|
||||||
* - ``RTEMS_SUCCESSFUL``
|
``id``
|
||||||
- period statistics retrieved successfully
|
This parameter is the rate monotonic period identifier.
|
||||||
* - ``RTEMS_INVALID_ID``
|
|
||||||
- invalid rate monotonic period id
|
|
||||||
* - ``RTEMS_INVALID_ADDRESS``
|
|
||||||
- invalid address of statistics
|
|
||||||
|
|
||||||
DESCRIPTION:
|
``status``
|
||||||
This directive returns statistics information associated with the rate
|
This parameter is the pointer to a
|
||||||
monotonic period id in the following data structure:
|
:c:type:`rtems_rate_monotonic_period_statistics` variable. When the
|
||||||
|
directive call is successful, the period statistics will be stored in this
|
||||||
|
variable.
|
||||||
|
|
||||||
.. index:: rtems_rate_monotonic_period_statistics
|
.. rubric:: DESCRIPTION:
|
||||||
|
|
||||||
.. code-block:: c
|
This directive returns the statistics of the rate monotonic period specified by
|
||||||
|
``id``. The statistics of the period will be returned in the members of the
|
||||||
|
period statistics object referenced by ``status``:
|
||||||
|
|
||||||
typedef struct {
|
* The ``count`` member is set to the number of periods executed.
|
||||||
uint32_t count;
|
|
||||||
uint32_t missed_count;
|
|
||||||
#ifdef RTEMS_ENABLE_NANOSECOND_CPU_USAGE_STATISTICS
|
|
||||||
struct timespec min_cpu_time;
|
|
||||||
struct timespec max_cpu_time;
|
|
||||||
struct timespec total_cpu_time;
|
|
||||||
#else
|
|
||||||
uint32_t min_cpu_time;
|
|
||||||
uint32_t max_cpu_time;
|
|
||||||
uint32_t total_cpu_time;
|
|
||||||
#endif
|
|
||||||
#ifdef RTEMS_ENABLE_NANOSECOND_RATE_MONOTONIC_STATISTICS
|
|
||||||
struct timespec min_wall_time;
|
|
||||||
struct timespec max_wall_time;
|
|
||||||
struct timespec total_wall_time;
|
|
||||||
#else
|
|
||||||
uint32_t min_wall_time;
|
|
||||||
uint32_t max_wall_time;
|
|
||||||
uint32_t total_wall_time;
|
|
||||||
#endif
|
|
||||||
} rtems_rate_monotonic_period_statistics;
|
|
||||||
|
|
||||||
This directive returns the current statistics information for the period
|
* The ``missed_count`` member is set to the number of periods missed.
|
||||||
instance assocaited with ``id``. The information returned is indicated by
|
|
||||||
the structure above.
|
|
||||||
|
|
||||||
NOTES:
|
* The ``min_cpu_time`` member is set to the least amount of processor time used
|
||||||
This directive will not cause the running task to be preempted.
|
in the period.
|
||||||
|
|
||||||
|
* The ``max_cpu_time`` member is set to the highest amount of processor time
|
||||||
|
used in the period.
|
||||||
|
|
||||||
|
* The ``total_cpu_time`` member is set to the total amount of processor time
|
||||||
|
used in the period.
|
||||||
|
|
||||||
|
* The ``min_wall_time`` member is set to the least amount of
|
||||||
|
:term:`CLOCK_MONOTONIC` time used in the period.
|
||||||
|
|
||||||
|
* The ``max_wall_time`` member is set to the highest amount of
|
||||||
|
:term:`CLOCK_MONOTONIC` time used in the period.
|
||||||
|
|
||||||
|
* The ``total_wall_time`` member is set to the total amount of
|
||||||
|
:term:`CLOCK_MONOTONIC` time used in the period.
|
||||||
|
|
||||||
|
.. rubric:: RETURN VALUES:
|
||||||
|
|
||||||
|
:c:macro:`RTEMS_SUCCESSFUL`
|
||||||
|
The requested operation was successful.
|
||||||
|
|
||||||
|
:c:macro:`RTEMS_INVALID_ID`
|
||||||
|
There was no rate monotonic period associated with the identifier specified
|
||||||
|
by ``id``.
|
||||||
|
|
||||||
|
:c:macro:`RTEMS_INVALID_ADDRESS`
|
||||||
|
The ``status`` parameter was `NULL
|
||||||
|
<https://en.cppreference.com/w/c/types/NULL>`_.
|
||||||
|
|
||||||
|
.. rubric:: CONSTRAINTS:
|
||||||
|
|
||||||
|
The following constraints apply to this directive:
|
||||||
|
|
||||||
|
* The directive may be called from within task context.
|
||||||
|
|
||||||
|
* The directive may be called from within interrupt context.
|
||||||
|
|
||||||
|
* The directive will not cause the calling task to be preempted.
|
||||||
|
|
||||||
|
.. Generated from spec:/rtems/ratemon/if/reset-statistics
|
||||||
|
|
||||||
.. raw:: latex
|
.. raw:: latex
|
||||||
|
|
||||||
\clearpage
|
\clearpage
|
||||||
|
|
||||||
|
.. index:: rtems_rate_monotonic_reset_statistics()
|
||||||
.. index:: reset statistics of period
|
.. index:: reset statistics of period
|
||||||
.. index:: rtems_rate_monotonic_reset_statistics
|
|
||||||
|
|
||||||
.. _rtems_rate_monotonic_reset_statistics:
|
.. _InterfaceRtemsRateMonotonicResetStatistics:
|
||||||
|
|
||||||
RATE_MONOTONIC_RESET_STATISTICS - Reset statistics for a period
|
rtems_rate_monotonic_reset_statistics()
|
||||||
---------------------------------------------------------------
|
---------------------------------------
|
||||||
|
|
||||||
|
Resets the statistics of the period.
|
||||||
|
|
||||||
|
.. rubric:: CALLING SEQUENCE:
|
||||||
|
|
||||||
CALLING SEQUENCE:
|
|
||||||
.. code-block:: c
|
.. code-block:: c
|
||||||
|
|
||||||
rtems_status_code rtems_rate_monotonic_reset_statistics(
|
rtems_status_code rtems_rate_monotonic_reset_statistics( rtems_id id );
|
||||||
rtems_id id
|
|
||||||
);
|
|
||||||
|
|
||||||
DIRECTIVE STATUS CODES:
|
.. rubric:: PARAMETERS:
|
||||||
.. list-table::
|
|
||||||
:class: rtems-table
|
|
||||||
|
|
||||||
* - ``RTEMS_SUCCESSFUL``
|
``id``
|
||||||
- period initiated successfully
|
This parameter is the rate monotonic period identifier.
|
||||||
* - ``RTEMS_INVALID_ID``
|
|
||||||
- invalid rate monotonic period id
|
|
||||||
|
|
||||||
DESCRIPTION:
|
.. rubric:: DESCRIPTION:
|
||||||
This directive resets the statistics information associated with this rate
|
|
||||||
monotonic period instance.
|
|
||||||
|
|
||||||
NOTES:
|
This directive resets the statistics of the rate monotonic period specified by
|
||||||
This directive will not cause the running task to be preempted.
|
``id``.
|
||||||
|
|
||||||
|
.. rubric:: RETURN VALUES:
|
||||||
|
|
||||||
|
:c:macro:`RTEMS_SUCCESSFUL`
|
||||||
|
The requested operation was successful.
|
||||||
|
|
||||||
|
:c:macro:`RTEMS_INVALID_ID`
|
||||||
|
There was no rate monotonic period associated with the identifier specified
|
||||||
|
by ``id``.
|
||||||
|
|
||||||
|
.. rubric:: CONSTRAINTS:
|
||||||
|
|
||||||
|
The following constraints apply to this directive:
|
||||||
|
|
||||||
|
* The directive may be called from within task context.
|
||||||
|
|
||||||
|
* The directive may be called from within interrupt context.
|
||||||
|
|
||||||
|
* The directive will not cause the calling task to be preempted.
|
||||||
|
|
||||||
|
.. Generated from spec:/rtems/ratemon/if/reset-all-statistics
|
||||||
|
|
||||||
.. raw:: latex
|
.. raw:: latex
|
||||||
|
|
||||||
\clearpage
|
\clearpage
|
||||||
|
|
||||||
|
.. index:: rtems_rate_monotonic_reset_all_statistics()
|
||||||
.. index:: reset statistics of all periods
|
.. index:: reset statistics of all periods
|
||||||
.. index:: rtems_rate_monotonic_reset_all_statistics
|
|
||||||
|
|
||||||
.. _rtems_rate_monotonic_reset_all_statistics:
|
.. _InterfaceRtemsRateMonotonicResetAllStatistics:
|
||||||
|
|
||||||
RATE_MONOTONIC_RESET_ALL_STATISTICS - Reset statistics for all periods
|
rtems_rate_monotonic_reset_all_statistics()
|
||||||
----------------------------------------------------------------------
|
-------------------------------------------
|
||||||
|
|
||||||
|
Resets the statistics of all periods.
|
||||||
|
|
||||||
|
.. rubric:: CALLING SEQUENCE:
|
||||||
|
|
||||||
CALLING SEQUENCE:
|
|
||||||
.. code-block:: c
|
.. code-block:: c
|
||||||
|
|
||||||
void rtems_rate_monotonic_reset_all_statistics( void );
|
void rtems_rate_monotonic_reset_all_statistics( void );
|
||||||
|
|
||||||
DIRECTIVE STATUS CODES:
|
.. rubric:: DESCRIPTION:
|
||||||
NONE
|
|
||||||
|
|
||||||
DESCRIPTION:
|
|
||||||
This directive resets the statistics information associated with all rate
|
This directive resets the statistics information associated with all rate
|
||||||
monotonic period instances.
|
monotonic period instances.
|
||||||
|
|
||||||
NOTES:
|
.. rubric:: CONSTRAINTS:
|
||||||
This directive will not cause the running task to be preempted.
|
|
||||||
|
The following constraints apply to this directive:
|
||||||
|
|
||||||
|
* The directive may be called from within task context.
|
||||||
|
|
||||||
|
* The directive may obtain and release the object allocator mutex. This may
|
||||||
|
cause the calling task to be preempted.
|
||||||
|
|
||||||
|
.. Generated from spec:/rtems/ratemon/if/report-statistics
|
||||||
|
|
||||||
.. raw:: latex
|
.. raw:: latex
|
||||||
|
|
||||||
\clearpage
|
\clearpage
|
||||||
|
|
||||||
|
.. index:: rtems_rate_monotonic_report_statistics()
|
||||||
.. index:: print period statistics report
|
.. index:: print period statistics report
|
||||||
.. index:: period statistics report
|
.. index:: period statistics report
|
||||||
.. index:: rtems_rate_monotonic_report_statistics
|
|
||||||
|
|
||||||
.. _rtems_rate_monotonic_report_statistics:
|
.. _InterfaceRtemsRateMonotonicReportStatistics:
|
||||||
|
|
||||||
RATE_MONOTONIC_REPORT_STATISTICS - Print period statistics report
|
rtems_rate_monotonic_report_statistics()
|
||||||
-----------------------------------------------------------------
|
----------------------------------------
|
||||||
|
|
||||||
|
Reports the period statistics using the :c:func:`printk` printer.
|
||||||
|
|
||||||
|
.. rubric:: CALLING SEQUENCE:
|
||||||
|
|
||||||
CALLING SEQUENCE:
|
|
||||||
.. code-block:: c
|
.. code-block:: c
|
||||||
|
|
||||||
void rtems_rate_monotonic_report_statistics( void );
|
void rtems_rate_monotonic_report_statistics( void );
|
||||||
|
|
||||||
DIRECTIVE STATUS CODES:
|
.. rubric:: DESCRIPTION:
|
||||||
NONE
|
|
||||||
|
|
||||||
DESCRIPTION:
|
|
||||||
This directive prints a report on all active periods which have executed at
|
This directive prints a report on all active periods which have executed at
|
||||||
least one period. The following is an example of the output generated by
|
least one period using the :c:func:`printk` printer.
|
||||||
this directive.
|
|
||||||
|
|
||||||
.. index:: rtems_rate_monotonic_period_statistics
|
.. rubric:: CONSTRAINTS:
|
||||||
|
|
||||||
|
The following constraints apply to this directive:
|
||||||
|
|
||||||
|
* The directive may be called from within task context.
|
||||||
|
|
||||||
|
* The directive may obtain and release the object allocator mutex. This may
|
||||||
|
cause the calling task to be preempted.
|
||||||
|
|
||||||
|
.. Generated from spec:/rtems/ratemon/if/report-statistics-with-plugin
|
||||||
|
|
||||||
|
.. raw:: latex
|
||||||
|
|
||||||
|
\clearpage
|
||||||
|
|
||||||
|
.. index:: rtems_rate_monotonic_report_statistics_with_plugin()
|
||||||
|
.. index:: print period statistics report
|
||||||
|
.. index:: period statistics report
|
||||||
|
|
||||||
|
.. _InterfaceRtemsRateMonotonicReportStatisticsWithPlugin:
|
||||||
|
|
||||||
|
rtems_rate_monotonic_report_statistics_with_plugin()
|
||||||
|
----------------------------------------------------
|
||||||
|
|
||||||
|
Reports the period statistics using the printer plugin.
|
||||||
|
|
||||||
|
.. rubric:: CALLING SEQUENCE:
|
||||||
|
|
||||||
.. code-block:: c
|
.. code-block:: c
|
||||||
|
|
||||||
ID OWNER PERIODS MISSED CPU TIME WALL TIME
|
void rtems_rate_monotonic_report_statistics_with_plugin(
|
||||||
MIN/MAX/AVG MIN/MAX/AVG
|
const struct rtems_printer *printer
|
||||||
0x42010001 TA1 502 0 0/1/0.99 0/0/0.00
|
);
|
||||||
0x42010002 TA2 502 0 0/1/0.99 0/0/0.00
|
|
||||||
0x42010003 TA3 501 0 0/1/0.99 0/0/0.00
|
|
||||||
0x42010004 TA4 501 0 0/1/0.99 0/0/0.00
|
|
||||||
0x42010005 TA5 10 0 0/1/0.90 0/0/0.00
|
|
||||||
|
|
||||||
NOTES:
|
.. rubric:: PARAMETERS:
|
||||||
This directive will not cause the running task to be preempted.
|
|
||||||
|
``printer``
|
||||||
|
This parameter is the printer plugin to output the report.
|
||||||
|
|
||||||
|
.. rubric:: DESCRIPTION:
|
||||||
|
|
||||||
|
This directive prints a report on all active periods which have executed at
|
||||||
|
least one period using the printer plugin specified by ``printer``.
|
||||||
|
|
||||||
|
.. rubric:: CONSTRAINTS:
|
||||||
|
|
||||||
|
The following constraints apply to this directive:
|
||||||
|
|
||||||
|
* The directive may be called from within task context.
|
||||||
|
|
||||||
|
* The directive may obtain and release the object allocator mutex. This may
|
||||||
|
cause the calling task to be preempted.
|
||||||
|
|||||||
@ -1,33 +1,76 @@
|
|||||||
.. SPDX-License-Identifier: CC-BY-SA-4.0
|
.. SPDX-License-Identifier: CC-BY-SA-4.0
|
||||||
|
|
||||||
|
.. Copyright (C) 2020, 2021 embedded brains GmbH (http://www.embedded-brains.de)
|
||||||
|
.. Copyright (C) 2017 Kuan-Hsun Chen
|
||||||
.. Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
|
.. Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
|
||||||
.. Copyright (C) 2017 Kuan-Hsun Chen.
|
|
||||||
|
.. 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/ratemon/if/group
|
||||||
|
|
||||||
|
.. _RateMonotonicManagerIntroduction:
|
||||||
|
|
||||||
Introduction
|
Introduction
|
||||||
============
|
============
|
||||||
|
|
||||||
The rate monotonic manager provides facilities to implement tasks which execute
|
.. The following list was generated from:
|
||||||
|
.. spec:/rtems/ratemon/if/create
|
||||||
|
.. spec:/rtems/ratemon/if/ident
|
||||||
|
.. spec:/rtems/ratemon/if/cancel
|
||||||
|
.. spec:/rtems/ratemon/if/delete
|
||||||
|
.. spec:/rtems/ratemon/if/period
|
||||||
|
.. spec:/rtems/ratemon/if/get-status
|
||||||
|
.. spec:/rtems/ratemon/if/get-statistics
|
||||||
|
.. spec:/rtems/ratemon/if/reset-statistics
|
||||||
|
.. spec:/rtems/ratemon/if/reset-all-statistics
|
||||||
|
.. spec:/rtems/ratemon/if/report-statistics
|
||||||
|
.. spec:/rtems/ratemon/if/report-statistics-with-plugin
|
||||||
|
|
||||||
|
The Rate-Monotonic Manager provides facilities to implement tasks which execute
|
||||||
in a periodic fashion. Critically, it also gathers information about the
|
in a periodic fashion. Critically, it also gathers information about the
|
||||||
execution of those periods and can provide important statistics to the user
|
execution of those periods and can provide important statistics to the user
|
||||||
which can be used to analyze and tune the application. The directives provided
|
which can be used to analyze and tune the application. The directives provided
|
||||||
by the rate monotonic manager are:
|
by the Rate-Monotonic Manager are:
|
||||||
|
|
||||||
- :ref:`rtems_rate_monotonic_create`
|
* :ref:`InterfaceRtemsRateMonotonicCreate` - Creates a period.
|
||||||
|
|
||||||
- :ref:`rtems_rate_monotonic_ident`
|
* :ref:`InterfaceRtemsRateMonotonicIdent` - Identifies a period by the object
|
||||||
|
name.
|
||||||
|
|
||||||
- :ref:`rtems_rate_monotonic_cancel`
|
* :ref:`InterfaceRtemsRateMonotonicCancel` - Cancels the period.
|
||||||
|
|
||||||
- :ref:`rtems_rate_monotonic_delete`
|
* :ref:`InterfaceRtemsRateMonotonicDelete` - Deletes the period.
|
||||||
|
|
||||||
- :ref:`rtems_rate_monotonic_period`
|
* :ref:`InterfaceRtemsRateMonotonicPeriod` - Concludes the current period and
|
||||||
|
start the next period, or gets the period status.
|
||||||
|
|
||||||
- :ref:`rtems_rate_monotonic_get_status`
|
* :ref:`InterfaceRtemsRateMonotonicGetStatus` - Gets the detailed status of the
|
||||||
|
period.
|
||||||
|
|
||||||
- :ref:`rtems_rate_monotonic_get_statistics`
|
* :ref:`InterfaceRtemsRateMonotonicGetStatistics` - Gets the statistics of the
|
||||||
|
period.
|
||||||
|
|
||||||
- :ref:`rtems_rate_monotonic_reset_statistics`
|
* :ref:`InterfaceRtemsRateMonotonicResetStatistics` - Resets the statistics of
|
||||||
|
the period.
|
||||||
|
|
||||||
- :ref:`rtems_rate_monotonic_reset_all_statistics`
|
* :ref:`InterfaceRtemsRateMonotonicResetAllStatistics` - Resets the statistics
|
||||||
|
of all periods.
|
||||||
|
|
||||||
- :ref:`rtems_rate_monotonic_report_statistics`
|
* :ref:`InterfaceRtemsRateMonotonicReportStatistics` - Reports the period
|
||||||
|
statistics using the :c:func:`printk` printer.
|
||||||
|
|
||||||
|
* :ref:`InterfaceRtemsRateMonotonicReportStatisticsWithPlugin` - Reports the
|
||||||
|
period statistics using the printer plugin.
|
||||||
|
|||||||
Loading…
x
Reference in New Issue
Block a user