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Add missing +TCP code.

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This commit is contained in:
Richard Barry 2017-08-17 12:26:43 +00:00
parent 77e95538dc
commit e42a701e99
18 changed files with 11695 additions and 501 deletions
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15
FreeRTOS-Plus/Source/FreeRTOS-Plus-TCP/FreeRTOS_Sockets.c
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@ -2893,11 +2893,26 @@ void vSocketWakeUpUser( FreeRTOS_Socket_t *pxSocket )
creation, it could still be changed with setsockopt(). */
if( xIsInputStream != pdFALSE )
{
/* Flow control for input streams works with a low- and a high-water mark.
1) If the RX-space becomes less than uxLittleSpace, the flag 'bLowWater' will
be set, and a TCP window update message will be sent to the peer.
2) The data will be read from the socket by recv() and when RX-space becomes
larger than or equal to than 'uxEnoughSpace', a new TCP window update
message will be sent to the peer, and 'bLowWater' will get cleared again.
By default:
uxLittleSpace == 1/5 x uxRxStreamSize
uxEnoughSpace == 4/5 x uxRxStreamSize
How-ever it is very inefficient to make 'uxLittleSpace' smaller than the actual MSS.
*/
uxLength = pxSocket->u.xTCP.uxRxStreamSize;
if( pxSocket->u.xTCP.uxLittleSpace == 0ul )
{
pxSocket->u.xTCP.uxLittleSpace = ( 1ul * pxSocket->u.xTCP.uxRxStreamSize ) / 5u; /*_RB_ Why divide by 5? Can this be changed to a #define? */
if( (pxSocket->u.xTCP.uxLittleSpace < pxSocket->u.xTCP.usCurMSS ) && ( pxSocket->u.xTCP.uxRxStreamSize >= 2 * pxSocket->u.xTCP.usCurMSS ) )
{
pxSocket->u.xTCP.uxLittleSpace = pxSocket->u.xTCP.usCurMSS;
}
}
if( pxSocket->u.xTCP.uxEnoughSpace == 0ul )