a-lunev commented on a change in pull request #4659:
URL: https://github.com/apache/incubator-nuttx/pull/4659#discussion_r727627443
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File path: net/tcp/tcp_send_unbuffered.c
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@@ -243,18 +243,54 @@ static uint16_t tcpsend_eventhandler(FAR struct
net_driver_s *dev,
else if ((flags & TCP_REXMIT) != 0)
{
+#if defined(CONFIG_NET_TCP_SPLIT)
/* Yes.. in this case, reset the number of bytes that have been sent
* to the number of bytes that have been ACKed.
*/
pstate->snd_sent = pstate->snd_acked;
Review comment:
Yes, it does. I wrote about this in the PR summary. It contradicts to
RFC 6298 (5.4) and other TCP related RFCs. Possibly it was done intentionally
as a workaround (as I understand, CONFIG_NET_TCP_SPLIT algorithm is some sort
of a trick as it is described in the source code comments).
If CONFIG_NET_TCP_SPLIT was planned to be removed, the removing would
simplify this part of the code.
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