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If an initial packet is written, its padding should be allowed to bypass the cwnd

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Summary:
When 0-rtt is used and an initial packet is lost, the retransmission of this packet may end up shorter than allowed because the padding frames are subject to the cwnd.

This change makes the padding of initial packets not subject to the cwnd.

Reviewed By: mjoras

Differential Revision: D39594390

fbshipit-source-id: 2d714c921f243f8a59577a6edaaeaa1c7e2be815
This commit is contained in:
Joseph Beshay
2022-09-19 17:39:32 -07:00
committed by Facebook GitHub Bot
parent 98862d60f8
commit 9b3a6c0249
2 changed files with 3 additions and 3 deletions
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4
quic/api/test/QuicPacketSchedulerTest.cpp
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@ -227,7 +227,7 @@ TEST_F(QuicPacketSchedulerTest, PaddingInitialPureAcks) {
EXPECT_EQ(conn.udpSendPacketLen, packetLength);
}
TEST_F(QuicPacketSchedulerTest, PaddingUpToWrapperSize) {
TEST_F(QuicPacketSchedulerTest, InitialPaddingDoesNotUseWrapper) {
QuicClientConnectionState conn(
FizzClientQuicHandshakeContext::Builder().build());
auto connId = getTestConnectionId();
@ -258,7 +258,7 @@ TEST_F(QuicPacketSchedulerTest, PaddingUpToWrapperSize) {
std::move(builder), conn.udpSendPacketLen - cipherOverhead);
auto packetLength = result.packet->header->computeChainDataLength() +
result.packet->body->computeChainDataLength();
EXPECT_EQ(conn.udpSendPacketLen - cipherOverhead, packetLength);
EXPECT_EQ(conn.udpSendPacketLen, packetLength);
}
TEST_F(QuicPacketSchedulerTest, CryptoServerInitialPadded) {