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Add IRQ safe API for message buffer reset (#1033)

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* Add API xStreamBufferResetFromISR

Allow reseting the stream buffer from ISR context

Signed-off-by: hagai.moshe <hagaimoshe@outlook.com>
Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com>
Co-authored-by: hagai.moshe <hagai.moshe@tandemg.com>
Co-authored-by: Rahul Kar <118818625+kar-rahul-aws@users.noreply.github.com>
Co-authored-by: kar-rahul-aws <karahulx@amazon.com>
Co-authored-by: Gaurav Aggarwal <aggarg@amazon.com>
This commit is contained in:
HagaiMoshe
2024-04-17 01:41:55 +03:00
committed by GitHub
parent 1ed681cc43
commit 9bfd0abb55
4 changed files with 146 additions and 0 deletions
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62
stream_buffer.c
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@ -639,6 +639,68 @@ BaseType_t xStreamBufferReset( StreamBufferHandle_t xStreamBuffer )
}
/*-----------------------------------------------------------*/
BaseType_t xStreamBufferResetFromISR( StreamBufferHandle_t xStreamBuffer )
{
StreamBuffer_t * const pxStreamBuffer = xStreamBuffer;
BaseType_t xReturn = pdFAIL;
StreamBufferCallbackFunction_t pxSendCallback = NULL, pxReceiveCallback = NULL;
UBaseType_t uxSavedInterruptStatus;
#if ( configUSE_TRACE_FACILITY == 1 )
UBaseType_t uxStreamBufferNumber;
#endif
traceENTER_xStreamBufferResetFromISR( xStreamBuffer );
configASSERT( pxStreamBuffer );
#if ( configUSE_TRACE_FACILITY == 1 )
{
/* Store the stream buffer number so it can be restored after the
* reset. */
uxStreamBufferNumber = pxStreamBuffer->uxStreamBufferNumber;
}
#endif
/* Can only reset a message buffer if there are no tasks blocked on it. */
uxSavedInterruptStatus = taskENTER_CRITICAL_FROM_ISR();
{
if( ( pxStreamBuffer->xTaskWaitingToReceive == NULL ) && ( pxStreamBuffer->xTaskWaitingToSend == NULL ) )
{
#if ( configUSE_SB_COMPLETED_CALLBACK == 1 )
{
pxSendCallback = pxStreamBuffer->pxSendCompletedCallback;
pxReceiveCallback = pxStreamBuffer->pxReceiveCompletedCallback;
}
#endif
prvInitialiseNewStreamBuffer( pxStreamBuffer,
pxStreamBuffer->pucBuffer,
pxStreamBuffer->xLength,
pxStreamBuffer->xTriggerLevelBytes,
pxStreamBuffer->ucFlags,
pxSendCallback,
pxReceiveCallback );
#if ( configUSE_TRACE_FACILITY == 1 )
{
pxStreamBuffer->uxStreamBufferNumber = uxStreamBufferNumber;
}
#endif
traceSTREAM_BUFFER_RESET_FROM_ISR( xStreamBuffer );
xReturn = pdPASS;
}
}
taskEXIT_CRITICAL_FROM_ISR( uxSavedInterruptStatus );
traceRETURN_xStreamBufferResetFromISR( xReturn );
return xReturn;
}
/*-----------------------------------------------------------*/
BaseType_t xStreamBufferSetTriggerLevel( StreamBufferHandle_t xStreamBuffer,
size_t xTriggerLevel )
{