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Remove unnecessary length arg from prvReadMessageFromBuffer

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This commit is contained in:
Miles Frain 2021-02-18 15:08:27 -08:00
parent ee82c9f34b
commit 1ffa6c7ebe
1 changed files with 7 additions and 9 deletions
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16
stream_buffer.c
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@ -184,8 +184,7 @@ static size_t prvWriteBytesToBuffer( StreamBuffer_t * const pxStreamBuffer,
static size_t prvReadMessageFromBuffer( StreamBuffer_t * pxStreamBuffer,
void * pvRxData,
size_t xBufferLengthBytes,
size_t xBytesAvailable,
size_t xBytesToStoreMessageLength ) PRIVILEGED_FUNCTION;
size_t xBytesAvailable ) PRIVILEGED_FUNCTION;
/*
* If the stream buffer is being used as a message buffer, then writes an entire
@ -839,7 +838,7 @@ size_t xStreamBufferReceive( StreamBufferHandle_t xStreamBuffer,
* read bytes from the buffer. */
if( xBytesAvailable > xBytesToStoreMessageLength )
{
xReceivedLength = prvReadMessageFromBuffer( pxStreamBuffer, pvRxData, xBufferLengthBytes, xBytesAvailable, xBytesToStoreMessageLength );
xReceivedLength = prvReadMessageFromBuffer( pxStreamBuffer, pvRxData, xBufferLengthBytes, xBytesAvailable );
/* Was a task waiting for space in the buffer? */
if( xReceivedLength != ( size_t ) 0 )
@ -941,7 +940,7 @@ size_t xStreamBufferReceiveFromISR( StreamBufferHandle_t xStreamBuffer,
* read bytes from the buffer. */
if( xBytesAvailable > xBytesToStoreMessageLength )
{
xReceivedLength = prvReadMessageFromBuffer( pxStreamBuffer, pvRxData, xBufferLengthBytes, xBytesAvailable, xBytesToStoreMessageLength );
xReceivedLength = prvReadMessageFromBuffer( pxStreamBuffer, pvRxData, xBufferLengthBytes, xBytesAvailable);
/* Was a task waiting for space in the buffer? */
if( xReceivedLength != ( size_t ) 0 )
@ -967,25 +966,24 @@ size_t xStreamBufferReceiveFromISR( StreamBufferHandle_t xStreamBuffer,
static size_t prvReadMessageFromBuffer( StreamBuffer_t * pxStreamBuffer,
void * pvRxData,
size_t xBufferLengthBytes,
size_t xBytesAvailable,
size_t xBytesToStoreMessageLength )
size_t xBytesAvailable )
{
size_t xOriginalTail, xReceivedLength, xNextMessageLength;
configMESSAGE_BUFFER_LENGTH_TYPE xTempNextMessageLength;
if( xBytesToStoreMessageLength != ( size_t ) 0 )
if( ( pxStreamBuffer->ucFlags & sbFLAGS_IS_MESSAGE_BUFFER ) != ( uint8_t ) 0 )
{
/* A discrete message is being received. First receive the length
* of the message. A copy of the tail is stored so the buffer can be
* returned to its prior state if the length of the message is too
* large for the provided buffer. */
xOriginalTail = pxStreamBuffer->xTail;
( void ) prvReadBytesFromBuffer( pxStreamBuffer, ( uint8_t * ) &xTempNextMessageLength, xBytesToStoreMessageLength, xBytesAvailable );
( void ) prvReadBytesFromBuffer( pxStreamBuffer, ( uint8_t * ) &xTempNextMessageLength, sbBYTES_TO_STORE_MESSAGE_LENGTH, xBytesAvailable );
xNextMessageLength = ( size_t ) xTempNextMessageLength;
/* Reduce the number of bytes available by the number of bytes just
* read out. */
xBytesAvailable -= xBytesToStoreMessageLength;
xBytesAvailable -= sbBYTES_TO_STORE_MESSAGE_LENGTH;
/* Check there is enough space in the buffer provided by the
* user. */