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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.
2017-11-30 23:50:45 -05:00
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 02:40:47 -04:00
.. note::
app_trace/sysview: fixed freertos tracing calling plus sync apptrace component with the master branch version docs: remove reference to backported features in freertos 10 api-reference.
2020-05-19 12:32:31 -04:00
ESP-IDF FreeRTOS is based on the Xtensa port of FreeRTOS v10.2.0,
add a note about ESP-IDF FreeRTOS version
2020-07-27 02:40:47 -04:00
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.
2018-04-18 13:20:34 -04:00
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.
2017-11-30 23:50:45 -05:00
Task API
--------
docs: add new top-level docs builder that builds docs for a single chip
2019-11-12 22:46:16 -05:00
.. 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.
2017-11-30 23:50:45 -05:00
Queue API
---------
docs: add new top-level docs builder that builds docs for a single chip
2019-11-12 22:46:16 -05:00
.. 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.
2017-11-30 23:50:45 -05:00
Semaphore API
-------------
docs: add new top-level docs builder that builds docs for a single chip
2019-11-12 22:46:16 -05:00
.. 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.
2017-11-30 23:50:45 -05:00
Timer API
---------
docs: add new top-level docs builder that builds docs for a single chip
2019-11-12 22:46:16 -05:00
.. 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.
2017-11-30 23:50:45 -05:00
Event Group API
---------------
docs: add new top-level docs builder that builds docs for a single chip
2019-11-12 22:46:16 -05:00
.. 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.
2017-11-30 23:50:45 -05:00
freertos: merged freertos 10 kernel files into IDF freertos/port: update the port files and split into xtensa and riscv ports freertos: separated cpu files from rest of the kernel sources freertos/port_xtensa: separated private include files into a folder freertos/tasks: added task create pinned to core function do not break current IDF API freertos/tasks: mimiced task create pinned function into tasks.c to do not break the IDF API. freertos: freertos component now compiling freertos: freertos component now building freertos: moved critical sections outside from FR kernel section to portable section portmacro_xtensa: add void indentifier on functions that take no arguments freertos: fix critical sections implementation to match with their function prototype freertos: add cmake changes of freertos into make freertos: remove portDONT_DISCARD attribute from switch context function, it was breaking the docs building. freertos: fix conflicitng types of vApplicationSleep function license: update the license of freertos freertos: Doxygen comments refactored to render them correctly on docs freertos: added new functions of freertos into the documentation freertos: added message buffers and stream buffers to documentation sysview: update freertos system view to the compatible with version 10 freertos: fixed event group documentation rendering freertos: update static task structure to match the actual tcb size freertos: removed backported test functions freertos/smp: brought SMP code to FreeRTOS 10 port freertos/portmacro: added missing crosscore interrupt for yielding tasks freertos: replaced soft-critical sections with hard-critical sections used by SMP freertos: placed muxes inside of kernel objects freertos: replaced original FR critical sections with SMP enabled spinlocks critical sections freertos: moved xtensa port files to a separated folder freertos: added multiple instance of global variables required to SMP freertos: added SMP modifications on specific tasks module functions freertos: added TLS deletion function to task module freertos/tls: initialize TLS deletion callback to avoid crashing when calling task delete freertos: modified vTaskDelete to do not erase current task that runs on other core freertos: reverted taskhandle and timerhandle as void* type freertos: fixed de-referencing void pointer to get run time counter freertos: fix system view trace enter macro arguments freertos: Replaced soft critical sections with spinlocks on event_groups freertos: fixed tick function to avoid calling tick hooks twice freertos: Nofity give checking per CPU if schedule is suspended freertos: added mpu release on TCB deletion freertos: Added SMP changes when deleting a TCB on idle task freertos/license: update freertos license in COPYRIGHT.rst freertos: unicore configurations can use task create pinned to core, it will be always pinned to core 0 freertos/portmacro: added cpu_hal_get_core_id() function instead of inline assembly freertos/xtensa: update xtensa specific files used in master branch newlib/locks: revert the preemption checking in lock acquisition and release ref_clock: fix initial state of ref_clock interrupt handler freertos: added missing critical sections and yielding checkings freertos: remove magic numbers in vTaskDelete freertos: added missing critical section in prvIsQueueEmpty
2019-11-28 13:27:47 -05:00
Stream Buffer API
-----------------
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.
2017-11-30 23:50:45 -05:00
freertos: merged freertos 10 kernel files into IDF freertos/port: update the port files and split into xtensa and riscv ports freertos: separated cpu files from rest of the kernel sources freertos/port_xtensa: separated private include files into a folder freertos/tasks: added task create pinned to core function do not break current IDF API freertos/tasks: mimiced task create pinned function into tasks.c to do not break the IDF API. freertos: freertos component now compiling freertos: freertos component now building freertos: moved critical sections outside from FR kernel section to portable section portmacro_xtensa: add void indentifier on functions that take no arguments freertos: fix critical sections implementation to match with their function prototype freertos: add cmake changes of freertos into make freertos: remove portDONT_DISCARD attribute from switch context function, it was breaking the docs building. freertos: fix conflicitng types of vApplicationSleep function license: update the license of freertos freertos: Doxygen comments refactored to render them correctly on docs freertos: added new functions of freertos into the documentation freertos: added message buffers and stream buffers to documentation sysview: update freertos system view to the compatible with version 10 freertos: fixed event group documentation rendering freertos: update static task structure to match the actual tcb size freertos: removed backported test functions freertos/smp: brought SMP code to FreeRTOS 10 port freertos/portmacro: added missing crosscore interrupt for yielding tasks freertos: replaced soft-critical sections with hard-critical sections used by SMP freertos: placed muxes inside of kernel objects freertos: replaced original FR critical sections with SMP enabled spinlocks critical sections freertos: moved xtensa port files to a separated folder freertos: added multiple instance of global variables required to SMP freertos: added SMP modifications on specific tasks module functions freertos: added TLS deletion function to task module freertos/tls: initialize TLS deletion callback to avoid crashing when calling task delete freertos: modified vTaskDelete to do not erase current task that runs on other core freertos: reverted taskhandle and timerhandle as void* type freertos: fixed de-referencing void pointer to get run time counter freertos: fix system view trace enter macro arguments freertos: Replaced soft critical sections with spinlocks on event_groups freertos: fixed tick function to avoid calling tick hooks twice freertos: Nofity give checking per CPU if schedule is suspended freertos: added mpu release on TCB deletion freertos: Added SMP changes when deleting a TCB on idle task freertos/license: update freertos license in COPYRIGHT.rst freertos: unicore configurations can use task create pinned to core, it will be always pinned to core 0 freertos/portmacro: added cpu_hal_get_core_id() function instead of inline assembly freertos/xtensa: update xtensa specific files used in master branch newlib/locks: revert the preemption checking in lock acquisition and release ref_clock: fix initial state of ref_clock interrupt handler freertos: added missing critical sections and yielding checkings freertos: remove magic numbers in vTaskDelete freertos: added missing critical section in prvIsQueueEmpty
2019-11-28 13:27:47 -05:00
.. include-build-file:: inc/stream_buffer.inc
Message Buffer API
------------------
.. include-build-file:: inc/message_buffer.inc
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