[core] Don't consider tool old ACK as IPE, it' may caused by network.

gou4shi1 · maxsharabayko · commit 53735e1f1a5b · 2022-11-01T11:54:41.000+01:00
diff --git a/srtcore/core.cpp b/srtcore/core.cpp
@@ -8421,9 +8421,9 @@ void srt::CUDT::processCtrlAckAck(const CPacket& ctrlpkt, const time_point& tsAr
         }
 
         LOGC(inlog.Error,
-            log << CONID() << "IPE: ACK record not found, can't estimate RTT "
-            << "(ACK number: " << ctrlpkt.getAckSeqNo() << ", last ACK sent: " << m_iAckSeqNo
-            << ", RTT (EWMA): " << m_iSRTT << ")");
+             log << CONID() << "ACK record not found, can't estimate RTT "
+                 << "(ACK number: " << ctrlpkt.getAckSeqNo() << ", last ACK sent: " << m_iAckSeqNo
+                 << ", RTT (EWMA): " << m_iSRTT << ")");
         return;
     }
 

Original file line number	Diff line number	Diff line change
`@@ -8421,9 +8421,9 @@ void srt::CUDT::processCtrlAckAck(const CPacket& ctrlpkt, const time_point& tsAr`
`8421`	`8421`	`}`
`8422`	`8422`
`8423`	`8423`	`LOGC(inlog.Error,`
`8424`		`- log << CONID() << "IPE: ACK record not found, can't estimate RTT "`
`8425`		`- << "(ACK number: " << ctrlpkt.getAckSeqNo() << ", last ACK sent: " << m_iAckSeqNo`
`8426`		`- << ", RTT (EWMA): " << m_iSRTT << ")");`
	`8424`	`+ log << CONID() << "ACK record not found, can't estimate RTT "`
	`8425`	`+ << "(ACK number: " << ctrlpkt.getAckSeqNo() << ", last ACK sent: " << m_iAckSeqNo`
	`8426`	`+ << ", RTT (EWMA): " << m_iSRTT << ")");`
`8427`	`8427`	`return;`
`8428`	`8428`	`}`
`8429`	`8429`