mirror of
https://git.rtems.org/rtems-docs/
synced 2025-07-25 18:25:36 +08:00
Sebastian Huber
parent
a9e6a1dbf8
commit
16b0d3f177
@ -15,255 +15,7 @@ Configuring a System
|
||||
general
|
||||
classic-api
|
||||
classic-init-task
|
||||
|
||||
POSIX API Configuration
|
||||
=======================
|
||||
|
||||
The parameters in this section are used to configure resources for the POSIX
|
||||
API supported by RTEMS. Most POSIX API objects are available by default since
|
||||
RTEMS 5.1. The queued signals and timers are only available if RTEMS was built
|
||||
with the ``--enable-posix`` build configuration option.
|
||||
|
||||
.. index:: CONFIGURE_MAXIMUM_POSIX_KEYS
|
||||
|
||||
.. _CONFIGURE_MAXIMUM_POSIX_KEYS:
|
||||
|
||||
CONFIGURE_MAXIMUM_POSIX_KEYS
|
||||
----------------------------
|
||||
|
||||
CONSTANT:
|
||||
``CONFIGURE_MAXIMUM_POSIX_KEYS``
|
||||
|
||||
DATA TYPE:
|
||||
Unsigned integer (``uint32_t``).
|
||||
|
||||
RANGE:
|
||||
Zero or positive.
|
||||
|
||||
DEFAULT VALUE:
|
||||
The default value is 0.
|
||||
|
||||
DESCRIPTION:
|
||||
``CONFIGURE_MAXIMUM_POSIX_KEYS`` is the maximum number of POSIX API Keys
|
||||
that can be concurrently active.
|
||||
|
||||
NOTES:
|
||||
This object class can be configured in unlimited allocation mode.
|
||||
|
||||
.. index:: CONFIGURE_MAXIMUM_POSIX_KEY_VALUE_PAIRS
|
||||
|
||||
.. _CONFIGURE_MAXIMUM_POSIX_KEY_VALUE_PAIRS:
|
||||
|
||||
CONFIGURE_MAXIMUM_POSIX_KEY_VALUE_PAIRS
|
||||
---------------------------------------
|
||||
|
||||
CONSTANT:
|
||||
``CONFIGURE_MAXIMUM_POSIX_KEY_VALUE_PAIRS``
|
||||
|
||||
DATA TYPE:
|
||||
Unsigned integer (``uint32_t``).
|
||||
|
||||
RANGE:
|
||||
Zero or positive.
|
||||
|
||||
DEFAULT VALUE:
|
||||
The default value is
|
||||
:ref:`CONFIGURE_MAXIMUM_POSIX_KEYS <CONFIGURE_MAXIMUM_POSIX_KEYS>` *
|
||||
:ref:`CONFIGURE_MAXIMUM_TASKS <CONFIGURE_MAXIMUM_TASKS>` +
|
||||
:ref:`CONFIGURE_MAXIMUM_POSIX_THREADS <CONFIGURE_MAXIMUM_POSIX_THREADS>`.
|
||||
|
||||
DESCRIPTION:
|
||||
``CONFIGURE_MAXIMUM_POSIX_KEY_VALUE_PAIRS`` is the maximum number of key
|
||||
value pairs used by POSIX API Keys that can be concurrently active.
|
||||
|
||||
NOTES:
|
||||
This object class can be configured in unlimited allocation mode.
|
||||
|
||||
A key value pair is created by :c:func:`pthread_setspecific` if the value
|
||||
is not :c:macro:`NULL`, otherwise it is deleted.
|
||||
|
||||
.. index:: CONFIGURE_MAXIMUM_POSIX_MESSAGE_QUEUES
|
||||
|
||||
.. _CONFIGURE_MAXIMUM_POSIX_MESSAGE_QUEUES:
|
||||
|
||||
CONFIGURE_MAXIMUM_POSIX_MESSAGE_QUEUES
|
||||
--------------------------------------
|
||||
|
||||
CONSTANT:
|
||||
``CONFIGURE_MAXIMUM_POSIX_MESSAGE_QUEUES``
|
||||
|
||||
DATA TYPE:
|
||||
Unsigned integer (``uint32_t``).
|
||||
|
||||
RANGE:
|
||||
Zero or positive.
|
||||
|
||||
DEFAULT VALUE:
|
||||
The default value is 0.
|
||||
|
||||
DESCRIPTION:
|
||||
``CONFIGURE_MAXIMUM_POSIX_MESSAGE_QUEUES`` is the maximum number of POSIX
|
||||
API Message Queues that can be concurrently active.
|
||||
|
||||
NOTES:
|
||||
This object class can be configured in unlimited allocation mode. You have
|
||||
to account for the memory used to store the messages of each message queue,
|
||||
see :ref:`CONFIGURE_MESSAGE_BUFFER_MEMORY`.
|
||||
|
||||
.. index:: CONFIGURE_MAXIMUM_POSIX_QUEUED_SIGNALS
|
||||
|
||||
.. _CONFIGURE_MAXIMUM_POSIX_QUEUED_SIGNALS:
|
||||
|
||||
CONFIGURE_MAXIMUM_POSIX_QUEUED_SIGNALS
|
||||
--------------------------------------
|
||||
|
||||
CONSTANT:
|
||||
``CONFIGURE_MAXIMUM_POSIX_QUEUED_SIGNALS``
|
||||
|
||||
DATA TYPE:
|
||||
Unsigned integer (``uint32_t``).
|
||||
|
||||
RANGE:
|
||||
Zero or positive.
|
||||
|
||||
DEFAULT VALUE:
|
||||
The default value is 0.
|
||||
|
||||
DESCRIPTION:
|
||||
``CONFIGURE_MAXIMUM_POSIX_QUEUED_SIGNALS`` is the maximum number of POSIX
|
||||
API Queued Signals that can be concurrently active.
|
||||
|
||||
NOTES:
|
||||
Unlimited objects are not available for queued signals.
|
||||
|
||||
Queued signals are only available if RTEMS was built with the
|
||||
``--enable-posix`` build configuration option.
|
||||
|
||||
.. index:: CONFIGURE_MAXIMUM_POSIX_SEMAPHORES
|
||||
|
||||
.. _CONFIGURE_MAXIMUM_POSIX_SEMAPHORES:
|
||||
|
||||
CONFIGURE_MAXIMUM_POSIX_SEMAPHORES
|
||||
----------------------------------
|
||||
|
||||
CONSTANT:
|
||||
``CONFIGURE_MAXIMUM_POSIX_SEMAPHORES``
|
||||
|
||||
DATA TYPE:
|
||||
Unsigned integer (``uint32_t``).
|
||||
|
||||
RANGE:
|
||||
Zero or positive.
|
||||
|
||||
DEFAULT VALUE:
|
||||
The default value is 0.
|
||||
|
||||
DESCRIPTION:
|
||||
``CONFIGURE_MAXIMUM_POSIX_SEMAPHORES`` is the maximum number of POSIX API
|
||||
Named Semaphores that can be concurrently active.
|
||||
|
||||
NOTES:
|
||||
This object class can be configured in unlimited allocation mode.
|
||||
|
||||
Named semaphores are created with ``sem_open()``. Semaphores initialized
|
||||
with ``sem_init()`` are not affected by this configuration option since the
|
||||
storage space for these semaphores is user-provided.
|
||||
|
||||
.. index:: CONFIGURE_MAXIMUM_POSIX_TIMERS
|
||||
|
||||
.. _CONFIGURE_MAXIMUM_POSIX_TIMERS:
|
||||
|
||||
CONFIGURE_MAXIMUM_POSIX_TIMERS
|
||||
------------------------------
|
||||
|
||||
CONSTANT:
|
||||
``CONFIGURE_MAXIMUM_POSIX_TIMERS``
|
||||
|
||||
DATA TYPE:
|
||||
Unsigned integer (``uint32_t``).
|
||||
|
||||
RANGE:
|
||||
Zero or positive.
|
||||
|
||||
DEFAULT VALUE:
|
||||
The default value is 0.
|
||||
|
||||
DESCRIPTION:
|
||||
``CONFIGURE_MAXIMUM_POSIX_TIMERS`` is the maximum number of POSIX API
|
||||
Timers that can be concurrently active.
|
||||
|
||||
NOTES:
|
||||
This object class can be configured in unlimited allocation mode.
|
||||
|
||||
Timers are only available if RTEMS was built with the
|
||||
``--enable-posix`` build configuration option.
|
||||
|
||||
.. index:: CONFIGURE_MAXIMUM_POSIX_THREADS
|
||||
|
||||
.. _CONFIGURE_MAXIMUM_POSIX_THREADS:
|
||||
|
||||
CONFIGURE_MAXIMUM_POSIX_THREADS
|
||||
-------------------------------
|
||||
|
||||
CONSTANT:
|
||||
``CONFIGURE_MAXIMUM_POSIX_THREADS``
|
||||
|
||||
DATA TYPE:
|
||||
Unsigned integer (``uint32_t``).
|
||||
|
||||
RANGE:
|
||||
Zero or positive.
|
||||
|
||||
DEFAULT VALUE:
|
||||
The default value is 0.
|
||||
|
||||
DESCRIPTION:
|
||||
``CONFIGURE_MAXIMUM_POSIX_THREADS`` is the maximum number of POSIX API
|
||||
Threads that can be concurrently active.
|
||||
|
||||
NOTES:
|
||||
This object class can be configured in unlimited allocation mode.
|
||||
|
||||
This calculations for the required memory in the RTEMS Workspace for
|
||||
threads assume that each thread has a minimum stack size and has floating
|
||||
point support enabled. The configuration parameter
|
||||
``CONFIGURE_EXTRA_TASK_STACKS`` is used to specify thread stack
|
||||
requirements *ABOVE* the minimum size required. See :ref:`Reserve
|
||||
Task/Thread Stack Memory Above Minimum` for more information about
|
||||
``CONFIGURE_EXTRA_TASK_STACKS``.
|
||||
|
||||
The maximum number of Classic API Tasks is specified by
|
||||
:ref:`CONFIGURE_MAXIMUM_TASKS <CONFIGURE_MAXIMUM_TASKS>`.
|
||||
|
||||
All POSIX threads have floating point enabled.
|
||||
|
||||
.. index:: CONFIGURE_MINIMUM_POSIX_THREAD_STACK_SIZE
|
||||
.. index:: minimum POSIX thread stack size
|
||||
|
||||
.. _CONFIGURE_MINIMUM_POSIX_THREAD_STACK_SIZE:
|
||||
|
||||
CONFIGURE_MINIMUM_POSIX_THREAD_STACK_SIZE
|
||||
-----------------------------------------
|
||||
|
||||
CONSTANT:
|
||||
``CONFIGURE_MINIMUM_POSIX_THREAD_STACK_SIZE``
|
||||
|
||||
DATA TYPE:
|
||||
Unsigned integer (``size_t``).
|
||||
|
||||
RANGE:
|
||||
Positive.
|
||||
|
||||
DEFAULT VALUE:
|
||||
The default value is two times the value of
|
||||
:ref:`CONFIGURE_MINIMUM_TASK_STACK_SIZE <CONFIGURE_MINIMUM_TASK_STACK_SIZE>`.
|
||||
|
||||
DESCRIPTION:
|
||||
This configuration parameter defines the minimum stack size in bytes for
|
||||
every POSIX thread in the system.
|
||||
|
||||
NOTES:
|
||||
None.
|
||||
posix-api
|
||||
|
||||
POSIX Initialization Thread Configuration
|
||||
=========================================
|
||||
|
||||
252
c-user/config/posix-api.rst
Normal file
252
c-user/config/posix-api.rst
Normal file
@ -0,0 +1,252 @@
|
||||
.. SPDX-License-Identifier: CC-BY-SA-4.0
|
||||
|
||||
.. Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
|
||||
|
||||
POSIX API Configuration
|
||||
=======================
|
||||
|
||||
The parameters in this section are used to configure resources for the POSIX
|
||||
API supported by RTEMS. Most POSIX API objects are available by default since
|
||||
RTEMS 5.1. The queued signals and timers are only available if RTEMS was built
|
||||
with the ``--enable-posix`` build configuration option.
|
||||
|
||||
.. index:: CONFIGURE_MAXIMUM_POSIX_KEYS
|
||||
|
||||
.. _CONFIGURE_MAXIMUM_POSIX_KEYS:
|
||||
|
||||
CONFIGURE_MAXIMUM_POSIX_KEYS
|
||||
----------------------------
|
||||
|
||||
CONSTANT:
|
||||
``CONFIGURE_MAXIMUM_POSIX_KEYS``
|
||||
|
||||
DATA TYPE:
|
||||
Unsigned integer (``uint32_t``).
|
||||
|
||||
RANGE:
|
||||
Zero or positive.
|
||||
|
||||
DEFAULT VALUE:
|
||||
The default value is 0.
|
||||
|
||||
DESCRIPTION:
|
||||
``CONFIGURE_MAXIMUM_POSIX_KEYS`` is the maximum number of POSIX API Keys
|
||||
that can be concurrently active.
|
||||
|
||||
NOTES:
|
||||
This object class can be configured in unlimited allocation mode.
|
||||
|
||||
.. index:: CONFIGURE_MAXIMUM_POSIX_KEY_VALUE_PAIRS
|
||||
|
||||
.. _CONFIGURE_MAXIMUM_POSIX_KEY_VALUE_PAIRS:
|
||||
|
||||
CONFIGURE_MAXIMUM_POSIX_KEY_VALUE_PAIRS
|
||||
---------------------------------------
|
||||
|
||||
CONSTANT:
|
||||
``CONFIGURE_MAXIMUM_POSIX_KEY_VALUE_PAIRS``
|
||||
|
||||
DATA TYPE:
|
||||
Unsigned integer (``uint32_t``).
|
||||
|
||||
RANGE:
|
||||
Zero or positive.
|
||||
|
||||
DEFAULT VALUE:
|
||||
The default value is
|
||||
:ref:`CONFIGURE_MAXIMUM_POSIX_KEYS <CONFIGURE_MAXIMUM_POSIX_KEYS>` *
|
||||
:ref:`CONFIGURE_MAXIMUM_TASKS <CONFIGURE_MAXIMUM_TASKS>` +
|
||||
:ref:`CONFIGURE_MAXIMUM_POSIX_THREADS <CONFIGURE_MAXIMUM_POSIX_THREADS>`.
|
||||
|
||||
DESCRIPTION:
|
||||
``CONFIGURE_MAXIMUM_POSIX_KEY_VALUE_PAIRS`` is the maximum number of key
|
||||
value pairs used by POSIX API Keys that can be concurrently active.
|
||||
|
||||
NOTES:
|
||||
This object class can be configured in unlimited allocation mode.
|
||||
|
||||
A key value pair is created by :c:func:`pthread_setspecific` if the value
|
||||
is not :c:macro:`NULL`, otherwise it is deleted.
|
||||
|
||||
.. index:: CONFIGURE_MAXIMUM_POSIX_MESSAGE_QUEUES
|
||||
|
||||
.. _CONFIGURE_MAXIMUM_POSIX_MESSAGE_QUEUES:
|
||||
|
||||
CONFIGURE_MAXIMUM_POSIX_MESSAGE_QUEUES
|
||||
--------------------------------------
|
||||
|
||||
CONSTANT:
|
||||
``CONFIGURE_MAXIMUM_POSIX_MESSAGE_QUEUES``
|
||||
|
||||
DATA TYPE:
|
||||
Unsigned integer (``uint32_t``).
|
||||
|
||||
RANGE:
|
||||
Zero or positive.
|
||||
|
||||
DEFAULT VALUE:
|
||||
The default value is 0.
|
||||
|
||||
DESCRIPTION:
|
||||
``CONFIGURE_MAXIMUM_POSIX_MESSAGE_QUEUES`` is the maximum number of POSIX
|
||||
API Message Queues that can be concurrently active.
|
||||
|
||||
NOTES:
|
||||
This object class can be configured in unlimited allocation mode. You have
|
||||
to account for the memory used to store the messages of each message queue,
|
||||
see :ref:`CONFIGURE_MESSAGE_BUFFER_MEMORY`.
|
||||
|
||||
.. index:: CONFIGURE_MAXIMUM_POSIX_QUEUED_SIGNALS
|
||||
|
||||
.. _CONFIGURE_MAXIMUM_POSIX_QUEUED_SIGNALS:
|
||||
|
||||
CONFIGURE_MAXIMUM_POSIX_QUEUED_SIGNALS
|
||||
--------------------------------------
|
||||
|
||||
CONSTANT:
|
||||
``CONFIGURE_MAXIMUM_POSIX_QUEUED_SIGNALS``
|
||||
|
||||
DATA TYPE:
|
||||
Unsigned integer (``uint32_t``).
|
||||
|
||||
RANGE:
|
||||
Zero or positive.
|
||||
|
||||
DEFAULT VALUE:
|
||||
The default value is 0.
|
||||
|
||||
DESCRIPTION:
|
||||
``CONFIGURE_MAXIMUM_POSIX_QUEUED_SIGNALS`` is the maximum number of POSIX
|
||||
API Queued Signals that can be concurrently active.
|
||||
|
||||
NOTES:
|
||||
Unlimited objects are not available for queued signals.
|
||||
|
||||
Queued signals are only available if RTEMS was built with the
|
||||
``--enable-posix`` build configuration option.
|
||||
|
||||
.. index:: CONFIGURE_MAXIMUM_POSIX_SEMAPHORES
|
||||
|
||||
.. _CONFIGURE_MAXIMUM_POSIX_SEMAPHORES:
|
||||
|
||||
CONFIGURE_MAXIMUM_POSIX_SEMAPHORES
|
||||
----------------------------------
|
||||
|
||||
CONSTANT:
|
||||
``CONFIGURE_MAXIMUM_POSIX_SEMAPHORES``
|
||||
|
||||
DATA TYPE:
|
||||
Unsigned integer (``uint32_t``).
|
||||
|
||||
RANGE:
|
||||
Zero or positive.
|
||||
|
||||
DEFAULT VALUE:
|
||||
The default value is 0.
|
||||
|
||||
DESCRIPTION:
|
||||
``CONFIGURE_MAXIMUM_POSIX_SEMAPHORES`` is the maximum number of POSIX API
|
||||
Named Semaphores that can be concurrently active.
|
||||
|
||||
NOTES:
|
||||
This object class can be configured in unlimited allocation mode.
|
||||
|
||||
Named semaphores are created with ``sem_open()``. Semaphores initialized
|
||||
with ``sem_init()`` are not affected by this configuration option since the
|
||||
storage space for these semaphores is user-provided.
|
||||
|
||||
.. index:: CONFIGURE_MAXIMUM_POSIX_TIMERS
|
||||
|
||||
.. _CONFIGURE_MAXIMUM_POSIX_TIMERS:
|
||||
|
||||
CONFIGURE_MAXIMUM_POSIX_TIMERS
|
||||
------------------------------
|
||||
|
||||
CONSTANT:
|
||||
``CONFIGURE_MAXIMUM_POSIX_TIMERS``
|
||||
|
||||
DATA TYPE:
|
||||
Unsigned integer (``uint32_t``).
|
||||
|
||||
RANGE:
|
||||
Zero or positive.
|
||||
|
||||
DEFAULT VALUE:
|
||||
The default value is 0.
|
||||
|
||||
DESCRIPTION:
|
||||
``CONFIGURE_MAXIMUM_POSIX_TIMERS`` is the maximum number of POSIX API
|
||||
Timers that can be concurrently active.
|
||||
|
||||
NOTES:
|
||||
This object class can be configured in unlimited allocation mode.
|
||||
|
||||
Timers are only available if RTEMS was built with the
|
||||
``--enable-posix`` build configuration option.
|
||||
|
||||
.. index:: CONFIGURE_MAXIMUM_POSIX_THREADS
|
||||
|
||||
.. _CONFIGURE_MAXIMUM_POSIX_THREADS:
|
||||
|
||||
CONFIGURE_MAXIMUM_POSIX_THREADS
|
||||
-------------------------------
|
||||
|
||||
CONSTANT:
|
||||
``CONFIGURE_MAXIMUM_POSIX_THREADS``
|
||||
|
||||
DATA TYPE:
|
||||
Unsigned integer (``uint32_t``).
|
||||
|
||||
RANGE:
|
||||
Zero or positive.
|
||||
|
||||
DEFAULT VALUE:
|
||||
The default value is 0.
|
||||
|
||||
DESCRIPTION:
|
||||
``CONFIGURE_MAXIMUM_POSIX_THREADS`` is the maximum number of POSIX API
|
||||
Threads that can be concurrently active.
|
||||
|
||||
NOTES:
|
||||
This object class can be configured in unlimited allocation mode.
|
||||
|
||||
This calculations for the required memory in the RTEMS Workspace for
|
||||
threads assume that each thread has a minimum stack size and has floating
|
||||
point support enabled. The configuration parameter
|
||||
``CONFIGURE_EXTRA_TASK_STACKS`` is used to specify thread stack
|
||||
requirements *ABOVE* the minimum size required. See :ref:`Reserve
|
||||
Task/Thread Stack Memory Above Minimum` for more information about
|
||||
``CONFIGURE_EXTRA_TASK_STACKS``.
|
||||
|
||||
The maximum number of Classic API Tasks is specified by
|
||||
:ref:`CONFIGURE_MAXIMUM_TASKS <CONFIGURE_MAXIMUM_TASKS>`.
|
||||
|
||||
All POSIX threads have floating point enabled.
|
||||
|
||||
.. index:: CONFIGURE_MINIMUM_POSIX_THREAD_STACK_SIZE
|
||||
.. index:: minimum POSIX thread stack size
|
||||
|
||||
.. _CONFIGURE_MINIMUM_POSIX_THREAD_STACK_SIZE:
|
||||
|
||||
CONFIGURE_MINIMUM_POSIX_THREAD_STACK_SIZE
|
||||
-----------------------------------------
|
||||
|
||||
CONSTANT:
|
||||
``CONFIGURE_MINIMUM_POSIX_THREAD_STACK_SIZE``
|
||||
|
||||
DATA TYPE:
|
||||
Unsigned integer (``size_t``).
|
||||
|
||||
RANGE:
|
||||
Positive.
|
||||
|
||||
DEFAULT VALUE:
|
||||
The default value is two times the value of
|
||||
:ref:`CONFIGURE_MINIMUM_TASK_STACK_SIZE <CONFIGURE_MINIMUM_TASK_STACK_SIZE>`.
|
||||
|
||||
DESCRIPTION:
|
||||
This configuration parameter defines the minimum stack size in bytes for
|
||||
every POSIX thread in the system.
|
||||
|
||||
NOTES:
|
||||
None.
|
||||
Loading…
x
Reference in New Issue
Block a user