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Introduce xMessageBufferNextLengthBytes() and tests for the same.

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Add call to traceTASK_SWITCHED_IN() in vTaskStartScheduler() so trace tools can see the first task to run.
This commit is contained in:
Richard Barry
2018-03-04 19:25:14 +00:00
parent 9ed3a9fe18
commit f9bef06ec0
9 changed files with 121 additions and 3 deletions
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19
FreeRTOS/Source/include/message_buffer.h
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@ -693,6 +693,25 @@ size_t xMessageBufferSpaceAvailable( MessageBufferHandle_t xMessageBuffer ) );
*/
#define xMessageBufferSpaceAvailable( xMessageBuffer ) xStreamBufferSpacesAvailable( ( StreamBufferHandle_t ) xMessageBuffer )
/**
* message_buffer.h
<pre>
size_t xMessageBufferNextLengthBytes( MessageBufferHandle_t xMessageBuffer ) );
</pre>
* Returns the length (in bytes) of the next message in a message buffer.
* Useful if xMessageBufferReceive() returned 0 because the size of the buffer
* passed into xMessageBufferReceive() was too small to hold the next message.
*
* @param xMessageBuffer The handle of the message buffer being queried.
*
* @return The length (in bytes) of the next message in the message buffer, or 0
* if the message buffer is empty.
*
* \defgroup xMessageBufferNextLengthBytes xMessageBufferNextLengthBytes
* \ingroup MessageBufferManagement
*/
#define xMessageBufferNextLengthBytes( xMessageBuffer ) xStreamBufferNextMessageLengthBytes( ( StreamBufferHandle_t ) xMessageBuffer ) PRIVILEGED_FUNCTION;
/**
* message_buffer.h
*