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Send probes for all spaces.

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Summary:
Previously we would only send probes for the first space which had one available, i.e. Initial before Handshake before AppData. Since we only have one PTO timer this can lead to situations where we perpetually probe with only Initials, which can significantly delay the handshake if we should have probed with Handshakes.

With this diff we will keep the single PTO timer but aggressively write more probes from all spaces if they are available.

Additionally this refactors some counters into EnumArrays

Reviewed By: yangchi

Differential Revision: D27235199

fbshipit-source-id: ef3614a833bf0f02f5806846a1335fa7ac2a4dc8
This commit is contained in:
Matt Joras
2021-03-23 12:49:21 -07:00
committed by Facebook GitHub Bot
parent f2746d70b5
commit bceb00346b
18 changed files with 277 additions and 174 deletions
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9
quic/api/test/QuicPacketSchedulerTest.cpp
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@@ -29,8 +29,7 @@ enum PacketBuilderType { Regular, Inplace };
namespace {
PacketNum addInitialOutstandingPacket(QuicConnectionStateBase& conn) {
PacketNum nextPacketNum =
getNextPacketNum(conn, PacketNumberSpace::Handshake);
PacketNum nextPacketNum = getNextPacketNum(conn, PacketNumberSpace::Initial);
std::vector<uint8_t> zeroConnIdData(quic::kDefaultConnectionIdSize, 0);
ConnectionId srcConnId(zeroConnIdData);
LongHeader header(
@@ -42,8 +41,8 @@ PacketNum addInitialOutstandingPacket(QuicConnectionStateBase& conn) {
RegularQuicWritePacket packet(std::move(header));
conn.outstandings.packets.emplace_back(
packet, Clock::now(), 0, true, 0, 0, 0, LossState(), 0);
conn.outstandings.handshakePacketsCount++;
increaseNextPacketNum(conn, PacketNumberSpace::Handshake);
conn.outstandings.packetCount[PacketNumberSpace::Initial]++;
increaseNextPacketNum(conn, PacketNumberSpace::Initial);
return nextPacketNum;
}
@@ -61,7 +60,7 @@ PacketNum addHandshakeOutstandingPacket(QuicConnectionStateBase& conn) {
RegularQuicWritePacket packet(std::move(header));
conn.outstandings.packets.emplace_back(
packet, Clock::now(), 0, true, 0, 0, 0, LossState(), 0);
conn.outstandings.handshakePacketsCount++;
conn.outstandings.packetCount[PacketNumberSpace::Handshake]++;
increaseNextPacketNum(conn, PacketNumberSpace::Handshake);
return nextPacketNum;
}