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Add callback overrides for stream buffer and message buffers (#437)

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* Let each stream/message can use its own sbSEND_COMPLETED

In FreeRTOS.h, set the default value of configUSE_SB_COMPLETED_CALLBACK
to zero, and add additional space for the function pointer when
the buffer created statically.

In stream_buffer.c, modify the macro of sbSEND_COMPLETED which let
the stream buffer to use its own implementation, and then add an
pointer to the stream buffer's structure, and modify the
implementation of the buffer creating and initializing

Co-authored-by: eddie9712 <qw1562435@gmail.com>
This commit is contained in:
Ravishankar Bhagavandas 2022-06-20 17:48:34 -07:00 • committed by GitHub
parent 49cb8e8b28
commit 0b46492740
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8 changed files with 306 additions and 48 deletions
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@ -13,6 +13,17 @@ Documentation and download available at https://www.FreeRTOS.org/
are both typedefs of the same struct xLIST_ITEM. This addresses some issues
observed when strict-aliasing and link time optimization are enabled.
To maintain backwards compatibility, configUSE_MINI_LIST_ITEM defaults to 1.
+ Add the ability to override send and receive completed callbacks for each
instance of a stream buffer or message buffer. The feature can be controlled
by setting the configuration option configUSE_SB_COMPLETED_CALLBACK in
FreeRTOSConfig.h. When the option is set to 1, APIs
xStreamBufferCreateWithCallback() or xStreamBufferCreateStaticWithCallback()
(and likewise APIs from message buffer) can be used to create a stream buffer
or message buffer instance with application provided callback overrides. When
the option is set to 0, then the default callbacks as defined by
sbSEND_COMPLETED() and sbRECEIVE_COMPLETED() macros are invoked. To maintain
backwards compatibility, configUSE_SB_COMPLETED_CALLBACK defaults to 0. The
functionaility is currently not supported for MPU enabled ports.
Changes between FreeRTOS V10.4.5 and FreeRTOS V10.4.6 released November 12 2021