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Protect against lost counter underflow in networking stats

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This commit is contained in:
Ken Cooke 2019-02-16 11:19:18 -08:00
parent 8faff57033
commit 0b472a9f02
1 changed files with 4 additions and 2 deletions

6
libraries/networking/src/SequenceNumberStats.cpp
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@ -142,8 +142,10 @@ SequenceNumberStats::ArrivalInfo SequenceNumberStats::sequenceNumberReceived(qui
if (wantExtraDebugging) {
qCDebug(networking) << "found it in _missingSet";
}
_stats._lost--;
_stats._recovered++;
if (_stats._lost > 0) {
_stats._lost--;
_stats._recovered++;
}
} else {
// this late seq num is not in our missing set. it is possibly a duplicate, or possibly a late
// packet that should have arrived before our first received packet. we'll count these