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esp-idf/docs/en/api-reference/system/freertos.rst

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docs: add FreeRTOS API docs - Use `code` tags instead of a mix of `<pre></pre>` and `@verbatim .. @endverbatim` - Remove manually added function prototypes from comment blocks - Remove of grouping (`\defgroup`) — some extra work is needed to make groups compatible with the way we auto-generate API reference from Doxygen XML files. It's pretty easy to add the grouping directives back if/when we implement support for Doxygen groups in the later stages of documentation build process. - Hide private APIs under `@cond .. @endcond` - Convert some comments into Doxygen-compatible ones - Fix various documentation issues: missing documentation for some parameters, mismatch between parameter names in comment block and in function prototype. - Add doxygen comments for functions which didn't have them (thread local storage). - Add [out] param tags where necessary - Redefine `xTaskCreate` and `xTaskCreateStatic` as inline functions instead of macros.
2017-12-01 12:50:45 +08:00
FreeRTOS
========
Overview
--------
This section contains documentation of FreeRTOS types, functions, and macros. It is automatically generated from FreeRTOS header files.
add a note about ESP-IDF FreeRTOS version
2020-07-27 14:40:47 +08:00
.. note::
ESP-IDF FreeRTOS is based on the Xtensa port of FreeRTOS v8.2.0, however some functions of FreeRTOS v9.0.0 have been backported. See the :ref:`backported-features` for more information.
freeRTOS/Re-factor ring buffers This fixes multiple bugs with ring buffers and re-factors the code. The public API has not changed, however the underlying implementation have various private functions have been changed. The following behavioral changes have been made - Size of ring buffers for No-Split/Allow-Split buffers will not be rounded up to the nearest 32-bit aligned size. This was done to simplify the implementation - Item size for No-Split/Allow-Split buffers will also be rounded up to the nearest 32-bit aligned size. The following bugs have been fixed - In copyItemToRingbufAllowSplit(), when copying an item where the aligned size is smaller than the remaining length, the function does not consider the case where the true size of the item is less than 4 bytes. - The copy functions will automatically wrap around the write pointers when the remaining length of the buffer is not large enough to fit a header, but does not consider if wrapping around will cause an overlap with the read pointer. This will make a full buffer be mistaken for an empty buffer closes #1711 - xRingbufferSend() can get stuck in a infinite loop when the size of the free memory is larger than the needed_size, but too small to fit in the ring buffer due to alignment and extra overhead of wrapping around. closes #1846 - Fixed documentation with ring buffer queue set API - Adding and removing from queue set does not consider the case where the read/write semaphores actually hold a value. The following functions have been deprecated - xRingbufferIsNextItemWrapped() due to lack of thread safety - xRingbufferAddToQueueSetWrite() and xRingbufferRemoveFromQueueSetWrite() as adding the queue sets only work under receive operations. The following functions have been added - xRingbufferReceiveSplit() and xRingbufferReceiveSplitFromISR() as a thread safe way to receive from allow-split buffers - vRingbufferGetInfo() Documentation for ring buffers has also been added.
2018-04-19 01:20:34 +08:00
For more information about FreeRTOS features specific to ESP-IDF, see :doc:`ESP-IDF FreeRTOS SMP Changes<../../api-guides/freertos-smp>`
and :doc:`ESP-IDF FreeRTOS Additions<freertos_additions>`.
docs: add FreeRTOS API docs - Use `code` tags instead of a mix of `<pre></pre>` and `@verbatim .. @endverbatim` - Remove manually added function prototypes from comment blocks - Remove of grouping (`\defgroup`) — some extra work is needed to make groups compatible with the way we auto-generate API reference from Doxygen XML files. It's pretty easy to add the grouping directives back if/when we implement support for Doxygen groups in the later stages of documentation build process. - Hide private APIs under `@cond .. @endcond` - Convert some comments into Doxygen-compatible ones - Fix various documentation issues: missing documentation for some parameters, mismatch between parameter names in comment block and in function prototype. - Add doxygen comments for functions which didn't have them (thread local storage). - Add [out] param tags where necessary - Redefine `xTaskCreate` and `xTaskCreateStatic` as inline functions instead of macros.
2017-12-01 12:50:45 +08:00
Task API
--------
docs: add new top-level docs builder that builds docs for a single chip
2019-11-13 11:46:16 +08:00
.. include-build-file:: inc/task.inc
docs: add FreeRTOS API docs - Use `code` tags instead of a mix of `<pre></pre>` and `@verbatim .. @endverbatim` - Remove manually added function prototypes from comment blocks - Remove of grouping (`\defgroup`) — some extra work is needed to make groups compatible with the way we auto-generate API reference from Doxygen XML files. It's pretty easy to add the grouping directives back if/when we implement support for Doxygen groups in the later stages of documentation build process. - Hide private APIs under `@cond .. @endcond` - Convert some comments into Doxygen-compatible ones - Fix various documentation issues: missing documentation for some parameters, mismatch between parameter names in comment block and in function prototype. - Add doxygen comments for functions which didn't have them (thread local storage). - Add [out] param tags where necessary - Redefine `xTaskCreate` and `xTaskCreateStatic` as inline functions instead of macros.
2017-12-01 12:50:45 +08:00
Queue API
---------
docs: add new top-level docs builder that builds docs for a single chip
2019-11-13 11:46:16 +08:00
.. include-build-file:: inc/queue.inc
docs: add FreeRTOS API docs - Use `code` tags instead of a mix of `<pre></pre>` and `@verbatim .. @endverbatim` - Remove manually added function prototypes from comment blocks - Remove of grouping (`\defgroup`) — some extra work is needed to make groups compatible with the way we auto-generate API reference from Doxygen XML files. It's pretty easy to add the grouping directives back if/when we implement support for Doxygen groups in the later stages of documentation build process. - Hide private APIs under `@cond .. @endcond` - Convert some comments into Doxygen-compatible ones - Fix various documentation issues: missing documentation for some parameters, mismatch between parameter names in comment block and in function prototype. - Add doxygen comments for functions which didn't have them (thread local storage). - Add [out] param tags where necessary - Redefine `xTaskCreate` and `xTaskCreateStatic` as inline functions instead of macros.
2017-12-01 12:50:45 +08:00
Semaphore API
-------------
docs: add new top-level docs builder that builds docs for a single chip
2019-11-13 11:46:16 +08:00
.. include-build-file:: inc/semphr.inc
docs: add FreeRTOS API docs - Use `code` tags instead of a mix of `<pre></pre>` and `@verbatim .. @endverbatim` - Remove manually added function prototypes from comment blocks - Remove of grouping (`\defgroup`) — some extra work is needed to make groups compatible with the way we auto-generate API reference from Doxygen XML files. It's pretty easy to add the grouping directives back if/when we implement support for Doxygen groups in the later stages of documentation build process. - Hide private APIs under `@cond .. @endcond` - Convert some comments into Doxygen-compatible ones - Fix various documentation issues: missing documentation for some parameters, mismatch between parameter names in comment block and in function prototype. - Add doxygen comments for functions which didn't have them (thread local storage). - Add [out] param tags where necessary - Redefine `xTaskCreate` and `xTaskCreateStatic` as inline functions instead of macros.
2017-12-01 12:50:45 +08:00
Timer API
---------
docs: add new top-level docs builder that builds docs for a single chip
2019-11-13 11:46:16 +08:00
.. include-build-file:: inc/timers.inc
docs: add FreeRTOS API docs - Use `code` tags instead of a mix of `<pre></pre>` and `@verbatim .. @endverbatim` - Remove manually added function prototypes from comment blocks - Remove of grouping (`\defgroup`) — some extra work is needed to make groups compatible with the way we auto-generate API reference from Doxygen XML files. It's pretty easy to add the grouping directives back if/when we implement support for Doxygen groups in the later stages of documentation build process. - Hide private APIs under `@cond .. @endcond` - Convert some comments into Doxygen-compatible ones - Fix various documentation issues: missing documentation for some parameters, mismatch between parameter names in comment block and in function prototype. - Add doxygen comments for functions which didn't have them (thread local storage). - Add [out] param tags where necessary - Redefine `xTaskCreate` and `xTaskCreateStatic` as inline functions instead of macros.
2017-12-01 12:50:45 +08:00
Event Group API
---------------
docs: add new top-level docs builder that builds docs for a single chip
2019-11-13 11:46:16 +08:00
.. include-build-file:: inc/event_groups.inc
docs: add FreeRTOS API docs - Use `code` tags instead of a mix of `<pre></pre>` and `@verbatim .. @endverbatim` - Remove manually added function prototypes from comment blocks - Remove of grouping (`\defgroup`) — some extra work is needed to make groups compatible with the way we auto-generate API reference from Doxygen XML files. It's pretty easy to add the grouping directives back if/when we implement support for Doxygen groups in the later stages of documentation build process. - Hide private APIs under `@cond .. @endcond` - Convert some comments into Doxygen-compatible ones - Fix various documentation issues: missing documentation for some parameters, mismatch between parameter names in comment block and in function prototype. - Add doxygen comments for functions which didn't have them (thread local storage). - Add [out] param tags where necessary - Redefine `xTaskCreate` and `xTaskCreateStatic` as inline functions instead of macros.
2017-12-01 12:50:45 +08:00
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