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Merge pull request #15504 from amantley/bugMaxBandwidth

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Fixed possible divide by zero error in setPacketSendPeriod()
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Shannon Romano 2019-05-03 09:17:32 -07:00 committed by GitHub
commit 74a79d04e7
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libraries/networking/src/udt/CongestionControl.cpp
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@ -29,7 +29,7 @@ void CongestionControl::setMaxBandwidth(int maxBandwidth) {
void CongestionControl::setPacketSendPeriod(double newSendPeriod) { void CongestionControl::setPacketSendPeriod(double newSendPeriod) {
Q_ASSERT_X(newSendPeriod >= 0, "CongestionControl::setPacketPeriod", "Can not set a negative packet send period"); Q_ASSERT_X(newSendPeriod >= 0, "CongestionControl::setPacketPeriod", "Can not set a negative packet send period");
auto packetsPerSecond = (double)_maxBandwidth / (BITS_PER_BYTE * _mss); auto packetsPerSecond = _mss > 0 ? (double)_maxBandwidth / (BITS_PER_BYTE * _mss) : -1.0;
if (packetsPerSecond > 0.0) { if (packetsPerSecond > 0.0) {
// anytime the packet send period is about to be increased, make sure it stays below the minimum period, // anytime the packet send period is about to be increased, make sure it stays below the minimum period,
// calculated based on the maximum desired bandwidth // calculated based on the maximum desired bandwidth