mirror of
https://github.com/refraction-networking/uquic.git
synced 2025-04-03 20:27:35 +03:00
retransmission queue: simplify queueing of PING frames
This commit is contained in:
Marten Seemann
parent
da55dfaabd
commit
5225a104d4
4 changed files with 74 additions and 50 deletions
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@ -1971,17 +1971,7 @@ func (s *connection) sendProbePacket(encLevel protocol.EncryptionLevel, now time
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}
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}
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if packet == nil {
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//nolint:exhaustive // Cannot send probe packets for 0-RTT.
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switch encLevel {
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case protocol.EncryptionInitial:
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s.retransmissionQueue.AddInitial(&wire.PingFrame{})
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case protocol.EncryptionHandshake:
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s.retransmissionQueue.AddHandshake(&wire.PingFrame{})
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case protocol.Encryption1RTT:
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s.retransmissionQueue.AddAppData(&wire.PingFrame{})
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default:
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panic("unexpected encryption level")
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}
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s.retransmissionQueue.AddPing(encLevel)
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var err error
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packet, err = s.packer.MaybePackProbePacket(encLevel, s.mtuDiscoverer.CurrentSize(), s.version)
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if err != nil {
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@ -647,7 +647,7 @@ var _ = Describe("Packet packer", func() {
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sealingManager.EXPECT().GetInitialSealer().Return(nil, handshake.ErrKeysDropped)
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sealingManager.EXPECT().GetHandshakeSealer().Return(sealer, nil)
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sealingManager.EXPECT().Get1RTTSealer().Return(nil, handshake.ErrKeysNotYetAvailable)
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packer.retransmissionQueue.AddHandshake(&wire.PingFrame{})
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packer.retransmissionQueue.addHandshake(&wire.PingFrame{})
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handshakeStream.EXPECT().HasData()
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ackFramer.EXPECT().GetAckFrame(protocol.EncryptionHandshake, false)
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packet, err := packer.PackCoalescedPacket(false, maxPacketSize, protocol.Version1)
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@ -978,7 +978,7 @@ var _ = Describe("Packet packer", func() {
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return &wire.CryptoFrame{Offset: 0x42, Data: []byte("initial")}
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})
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handshakeStream.EXPECT().HasData()
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packer.retransmissionQueue.AddHandshake(&wire.PingFrame{})
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packer.retransmissionQueue.addHandshake(&wire.PingFrame{})
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p, err := packer.PackCoalescedPacket(false, maxPacketSize, protocol.Version1)
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Expect(err).ToNot(HaveOccurred())
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Expect(p.buffer.Len()).To(BeEquivalentTo(maxPacketSize))
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@ -1008,8 +1008,8 @@ var _ = Describe("Packet packer", func() {
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ackFramer.EXPECT().GetAckFrame(protocol.EncryptionInitial, gomock.Any())
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initialStream.EXPECT().HasData()
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handshakeStream.EXPECT().HasData()
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packer.retransmissionQueue.AddInitial(&wire.PingFrame{})
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packer.retransmissionQueue.AddHandshake(&wire.PingFrame{})
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packer.retransmissionQueue.addInitial(&wire.PingFrame{})
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packer.retransmissionQueue.addHandshake(&wire.PingFrame{})
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p, err := packer.PackCoalescedPacket(false, maxPacketSize, protocol.Version1)
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Expect(err).ToNot(HaveOccurred())
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Expect(p.buffer.Len()).To(BeEquivalentTo(maxPacketSize))
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@ -1043,7 +1043,7 @@ var _ = Describe("Packet packer", func() {
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expectAppendControlFrames()
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expectAppendStreamFrames()
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framer.EXPECT().HasData().Return(true)
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packer.retransmissionQueue.AddAppData(&wire.PingFrame{})
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packer.retransmissionQueue.addAppData(&wire.PingFrame{})
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p, err := packer.PackCoalescedPacket(false, maxPacketSize, protocol.Version1)
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Expect(err).ToNot(HaveOccurred())
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Expect(p.buffer.Len()).To(BeEquivalentTo(maxPacketSize))
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@ -1166,7 +1166,7 @@ var _ = Describe("Packet packer", func() {
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sealingManager.EXPECT().GetInitialSealer().Return(nil, handshake.ErrKeysDropped)
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sealingManager.EXPECT().GetHandshakeSealer().Return(sealer, nil)
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sealingManager.EXPECT().Get1RTTSealer().Return(nil, handshake.ErrKeysNotYetAvailable)
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packer.retransmissionQueue.AddHandshake(&wire.PingFrame{})
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packer.retransmissionQueue.addHandshake(&wire.PingFrame{})
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handshakeStream.EXPECT().HasData()
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ackFramer.EXPECT().GetAckFrame(protocol.EncryptionHandshake, false)
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packet, err := packer.PackCoalescedPacket(false, maxPacketSize, protocol.Version1)
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@ -1201,8 +1201,8 @@ var _ = Describe("Packet packer", func() {
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It("adds retransmissions", func() {
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f := &wire.CryptoFrame{Data: []byte("Initial")}
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retransmissionQueue.AddInitial(f)
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retransmissionQueue.AddHandshake(&wire.CryptoFrame{Data: []byte("Handshake")})
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retransmissionQueue.addInitial(f)
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retransmissionQueue.addHandshake(&wire.CryptoFrame{Data: []byte("Handshake")})
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pnManager.EXPECT().PeekPacketNumber(protocol.EncryptionInitial).Return(protocol.PacketNumber(0x42), protocol.PacketNumberLen2)
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pnManager.EXPECT().PopPacketNumber(protocol.EncryptionInitial).Return(protocol.PacketNumber(0x42))
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sealingManager.EXPECT().GetInitialSealer().Return(getSealer(), nil)
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@ -1320,7 +1320,7 @@ var _ = Describe("Packet packer", func() {
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It(fmt.Sprintf("packs an Initial probe packet and pads it, for the %s", perspective), func() {
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packer.perspective = perspective
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f := &wire.CryptoFrame{Data: []byte("Initial")}
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retransmissionQueue.AddInitial(f)
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retransmissionQueue.addInitial(f)
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sealingManager.EXPECT().GetInitialSealer().Return(getSealer(), nil)
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ackFramer.EXPECT().GetAckFrame(protocol.EncryptionInitial, false)
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initialStream.EXPECT().HasData()
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@ -1342,7 +1342,7 @@ var _ = Describe("Packet packer", func() {
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It(fmt.Sprintf("packs an Initial probe packet with 1 byte payload, for the %s", perspective), func() {
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packer.perspective = perspective
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retransmissionQueue.AddInitial(&wire.PingFrame{})
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retransmissionQueue.addInitial(&wire.PingFrame{})
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sealingManager.EXPECT().GetInitialSealer().Return(getSealer(), nil)
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ackFramer.EXPECT().GetAckFrame(protocol.EncryptionInitial, false)
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initialStream.EXPECT().HasData()
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@ -1366,7 +1366,7 @@ var _ = Describe("Packet packer", func() {
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It("packs a Handshake probe packet", func() {
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f := &wire.CryptoFrame{Data: []byte("Handshake")}
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retransmissionQueue.AddHandshake(f)
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retransmissionQueue.addHandshake(f)
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sealingManager.EXPECT().GetHandshakeSealer().Return(getSealer(), nil)
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ackFramer.EXPECT().GetAckFrame(protocol.EncryptionHandshake, false)
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handshakeStream.EXPECT().HasData()
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@ -1387,7 +1387,7 @@ var _ = Describe("Packet packer", func() {
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It("packs a full size Handshake probe packet", func() {
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f := &wire.CryptoFrame{Data: make([]byte, 2000)}
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retransmissionQueue.AddHandshake(f)
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retransmissionQueue.addHandshake(f)
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sealingManager.EXPECT().GetHandshakeSealer().Return(getSealer(), nil)
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ackFramer.EXPECT().GetAckFrame(protocol.EncryptionHandshake, false)
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handshakeStream.EXPECT().HasData()
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@ -1409,7 +1409,7 @@ var _ = Describe("Packet packer", func() {
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It("packs a 1-RTT probe packet", func() {
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f := &wire.StreamFrame{Data: []byte("1-RTT")}
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retransmissionQueue.AddInitial(f)
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retransmissionQueue.addInitial(f)
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sealingManager.EXPECT().Get1RTTSealer().Return(getSealer(), nil)
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ackFramer.EXPECT().GetAckFrame(protocol.Encryption1RTT, false)
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pnManager.EXPECT().PeekPacketNumber(protocol.Encryption1RTT).Return(protocol.PacketNumber(0x42), protocol.PacketNumberLen2)
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@ -1431,7 +1431,7 @@ var _ = Describe("Packet packer", func() {
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It("packs a full size 1-RTT probe packet", func() {
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f := &wire.StreamFrame{Data: make([]byte, 2000)}
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retransmissionQueue.AddInitial(f)
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retransmissionQueue.addInitial(f)
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sealingManager.EXPECT().Get1RTTSealer().Return(getSealer(), nil)
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ackFramer.EXPECT().GetAckFrame(protocol.Encryption1RTT, false)
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pnManager.EXPECT().PeekPacketNumber(protocol.Encryption1RTT).Return(protocol.PacketNumber(0x42), protocol.PacketNumberLen2)
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@ -23,7 +23,23 @@ func newRetransmissionQueue() *retransmissionQueue {
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return &retransmissionQueue{}
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}
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func (q *retransmissionQueue) AddInitial(f wire.Frame) {
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// AddPing queues a ping.
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// It is used when a probe packet needs to be sent
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func (q *retransmissionQueue) AddPing(encLevel protocol.EncryptionLevel) {
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//nolint:exhaustive // Cannot send probe packets for 0-RTT.
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switch encLevel {
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case protocol.EncryptionInitial:
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q.addInitial(&wire.PingFrame{})
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case protocol.EncryptionHandshake:
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q.addHandshake(&wire.PingFrame{})
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case protocol.Encryption1RTT:
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q.addAppData(&wire.PingFrame{})
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default:
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panic("unexpected encryption level")
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}
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}
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func (q *retransmissionQueue) addInitial(f wire.Frame) {
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if cf, ok := f.(*wire.CryptoFrame); ok {
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q.initialCryptoData = append(q.initialCryptoData, cf)
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return
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@ -31,7 +47,7 @@ func (q *retransmissionQueue) AddInitial(f wire.Frame) {
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q.initial = append(q.initial, f)
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}
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func (q *retransmissionQueue) AddHandshake(f wire.Frame) {
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func (q *retransmissionQueue) addHandshake(f wire.Frame) {
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if cf, ok := f.(*wire.CryptoFrame); ok {
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q.handshakeCryptoData = append(q.handshakeCryptoData, cf)
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return
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@ -51,7 +67,7 @@ func (q *retransmissionQueue) HasAppData() bool {
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return len(q.appData) > 0
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}
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func (q *retransmissionQueue) AddAppData(f wire.Frame) {
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func (q *retransmissionQueue) addAppData(f wire.Frame) {
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if _, ok := f.(*wire.StreamFrame); ok {
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panic("STREAM frames are handled with their respective streams.")
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}
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@ -146,19 +162,19 @@ type retransmissionQueueInitialAckHandler retransmissionQueue
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func (q *retransmissionQueueInitialAckHandler) OnAcked(wire.Frame) {}
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func (q *retransmissionQueueInitialAckHandler) OnLost(f wire.Frame) {
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(*retransmissionQueue)(q).AddInitial(f)
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(*retransmissionQueue)(q).addInitial(f)
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}
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type retransmissionQueueHandshakeAckHandler retransmissionQueue
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func (q *retransmissionQueueHandshakeAckHandler) OnAcked(wire.Frame) {}
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func (q *retransmissionQueueHandshakeAckHandler) OnLost(f wire.Frame) {
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(*retransmissionQueue)(q).AddHandshake(f)
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(*retransmissionQueue)(q).addHandshake(f)
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}
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type retransmissionQueueAppDataAckHandler retransmissionQueue
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func (q *retransmissionQueueAppDataAckHandler) OnAcked(wire.Frame) {}
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func (q *retransmissionQueueAppDataAckHandler) OnLost(f wire.Frame) {
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(*retransmissionQueue)(q).AddAppData(f)
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(*retransmissionQueue)(q).addAppData(f)
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}
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@ -23,7 +23,7 @@ var _ = Describe("Retransmission queue", func() {
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It("queues and retrieves a control frame", func() {
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f := &wire.MaxDataFrame{MaximumData: 0x42}
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q.AddInitial(f)
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q.addInitial(f)
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Expect(q.HasInitialData()).To(BeTrue())
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Expect(q.GetInitialFrame(f.Length(protocol.Version1)-1, protocol.Version1)).To(BeNil())
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Expect(q.GetInitialFrame(f.Length(protocol.Version1), protocol.Version1)).To(Equal(f))
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@ -32,7 +32,7 @@ var _ = Describe("Retransmission queue", func() {
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It("queues and retrieves a CRYPTO frame", func() {
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f := &wire.CryptoFrame{Data: []byte("foobar")}
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q.AddInitial(f)
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q.addInitial(f)
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Expect(q.HasInitialData()).To(BeTrue())
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Expect(q.GetInitialFrame(f.Length(protocol.Version1), protocol.Version1)).To(Equal(f))
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Expect(q.HasInitialData()).To(BeFalse())
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@ -43,7 +43,7 @@ var _ = Describe("Retransmission queue", func() {
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Offset: 100,
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Data: []byte("foobar"),
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}
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q.AddInitial(f)
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q.addInitial(f)
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Expect(q.HasInitialData()).To(BeTrue())
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f1 := q.GetInitialFrame(f.Length(protocol.Version1)-3, protocol.Version1)
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Expect(f1).ToNot(BeNil())
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@ -61,8 +61,8 @@ var _ = Describe("Retransmission queue", func() {
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It("returns other frames when a CRYPTO frame wouldn't fit", func() {
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f := &wire.CryptoFrame{Data: []byte("foobar")}
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q.AddInitial(f)
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q.AddInitial(&wire.PingFrame{})
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q.addInitial(f)
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q.addInitial(&wire.PingFrame{})
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f1 := q.GetInitialFrame(2, protocol.Version1) // too small for a CRYPTO frame
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Expect(f1).ToNot(BeNil())
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Expect(f1).To(BeAssignableToTypeOf(&wire.PingFrame{}))
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@ -74,8 +74,8 @@ var _ = Describe("Retransmission queue", func() {
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It("retrieves both a CRYPTO frame and a control frame", func() {
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cf := &wire.MaxDataFrame{MaximumData: 0x42}
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f := &wire.CryptoFrame{Data: []byte("foobar")}
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q.AddInitial(f)
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q.AddInitial(cf)
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q.addInitial(f)
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q.addInitial(cf)
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Expect(q.HasInitialData()).To(BeTrue())
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Expect(q.GetInitialFrame(protocol.MaxByteCount, protocol.Version1)).To(Equal(f))
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Expect(q.GetInitialFrame(protocol.MaxByteCount, protocol.Version1)).To(Equal(cf))
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@ -83,8 +83,8 @@ var _ = Describe("Retransmission queue", func() {
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})
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It("drops all Initial frames", func() {
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q.AddInitial(&wire.CryptoFrame{Data: []byte("foobar")})
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q.AddInitial(&wire.MaxDataFrame{MaximumData: 0x42})
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q.addInitial(&wire.CryptoFrame{Data: []byte("foobar")})
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q.addInitial(&wire.MaxDataFrame{MaximumData: 0x42})
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q.DropPackets(protocol.EncryptionInitial)
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Expect(q.HasInitialData()).To(BeFalse())
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Expect(q.GetInitialFrame(protocol.MaxByteCount, protocol.Version1)).To(BeNil())
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@ -96,6 +96,12 @@ var _ = Describe("Retransmission queue", func() {
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Expect(q.HasInitialData()).To(BeTrue())
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Expect(q.GetInitialFrame(protocol.MaxByteCount, protocol.Version1)).To(Equal(f))
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})
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It("adds a PING", func() {
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q.AddPing(protocol.EncryptionInitial)
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Expect(q.HasInitialData()).To(BeTrue())
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Expect(q.GetInitialFrame(protocol.MaxByteCount, protocol.Version1)).To(Equal(&wire.PingFrame{}))
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})
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})
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Context("Handshake data", func() {
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@ -106,7 +112,7 @@ var _ = Describe("Retransmission queue", func() {
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It("queues and retrieves a control frame", func() {
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f := &wire.MaxDataFrame{MaximumData: 0x42}
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q.AddHandshake(f)
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q.addHandshake(f)
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Expect(q.HasHandshakeData()).To(BeTrue())
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Expect(q.GetHandshakeFrame(f.Length(protocol.Version1)-1, protocol.Version1)).To(BeNil())
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Expect(q.GetHandshakeFrame(f.Length(protocol.Version1), protocol.Version1)).To(Equal(f))
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@ -115,7 +121,7 @@ var _ = Describe("Retransmission queue", func() {
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It("queues and retrieves a CRYPTO frame", func() {
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f := &wire.CryptoFrame{Data: []byte("foobar")}
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q.AddHandshake(f)
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q.addHandshake(f)
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Expect(q.HasHandshakeData()).To(BeTrue())
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Expect(q.GetHandshakeFrame(f.Length(protocol.Version1), protocol.Version1)).To(Equal(f))
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Expect(q.HasHandshakeData()).To(BeFalse())
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@ -126,7 +132,7 @@ var _ = Describe("Retransmission queue", func() {
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Offset: 100,
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Data: []byte("foobar"),
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}
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q.AddHandshake(f)
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q.addHandshake(f)
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Expect(q.HasHandshakeData()).To(BeTrue())
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f1 := q.GetHandshakeFrame(f.Length(protocol.Version1)-3, protocol.Version1)
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Expect(f1).ToNot(BeNil())
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@ -144,8 +150,8 @@ var _ = Describe("Retransmission queue", func() {
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It("returns other frames when a CRYPTO frame wouldn't fit", func() {
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f := &wire.CryptoFrame{Data: []byte("foobar")}
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q.AddHandshake(f)
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q.AddHandshake(&wire.PingFrame{})
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q.addHandshake(f)
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q.addHandshake(&wire.PingFrame{})
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f1 := q.GetHandshakeFrame(2, protocol.Version1) // too small for a CRYPTO frame
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Expect(f1).ToNot(BeNil())
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Expect(f1).To(BeAssignableToTypeOf(&wire.PingFrame{}))
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@ -157,8 +163,8 @@ var _ = Describe("Retransmission queue", func() {
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It("retrieves both a CRYPTO frame and a control frame", func() {
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cf := &wire.MaxDataFrame{MaximumData: 0x42}
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f := &wire.CryptoFrame{Data: []byte("foobar")}
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q.AddHandshake(f)
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q.AddHandshake(cf)
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q.addHandshake(f)
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q.addHandshake(cf)
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Expect(q.HasHandshakeData()).To(BeTrue())
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Expect(q.GetHandshakeFrame(protocol.MaxByteCount, protocol.Version1)).To(Equal(f))
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Expect(q.GetHandshakeFrame(protocol.MaxByteCount, protocol.Version1)).To(Equal(cf))
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@ -166,8 +172,8 @@ var _ = Describe("Retransmission queue", func() {
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})
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It("drops all Handshake frames", func() {
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q.AddHandshake(&wire.CryptoFrame{Data: []byte("foobar")})
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q.AddHandshake(&wire.MaxDataFrame{MaximumData: 0x42})
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q.addHandshake(&wire.CryptoFrame{Data: []byte("foobar")})
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q.addHandshake(&wire.MaxDataFrame{MaximumData: 0x42})
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q.DropPackets(protocol.EncryptionHandshake)
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Expect(q.HasHandshakeData()).To(BeFalse())
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Expect(q.GetHandshakeFrame(protocol.MaxByteCount, protocol.Version1)).To(BeNil())
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@ -179,6 +185,12 @@ var _ = Describe("Retransmission queue", func() {
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Expect(q.HasHandshakeData()).To(BeTrue())
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Expect(q.GetHandshakeFrame(protocol.MaxByteCount, protocol.Version1)).To(Equal(f))
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})
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It("adds a PING", func() {
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q.AddPing(protocol.EncryptionHandshake)
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Expect(q.HasHandshakeData()).To(BeTrue())
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Expect(q.GetHandshakeFrame(protocol.MaxByteCount, protocol.Version1)).To(Equal(&wire.PingFrame{}))
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})
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})
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||||
Context("Application data", func() {
|
||||
|
|
@ -189,7 +201,7 @@ var _ = Describe("Retransmission queue", func() {
|
|||
It("queues and retrieves a control frame", func() {
|
||||
f := &wire.MaxDataFrame{MaximumData: 0x42}
|
||||
Expect(q.HasAppData()).To(BeFalse())
|
||||
q.AddAppData(f)
|
||||
q.addAppData(f)
|
||||
Expect(q.HasAppData()).To(BeTrue())
|
||||
Expect(q.GetAppDataFrame(f.Length(protocol.Version1)-1, protocol.Version1)).To(BeNil())
|
||||
Expect(q.GetAppDataFrame(f.Length(protocol.Version1), protocol.Version1)).To(Equal(f))
|
||||
|
|
@ -202,5 +214,11 @@ var _ = Describe("Retransmission queue", func() {
|
|||
Expect(q.HasAppData()).To(BeTrue())
|
||||
Expect(q.GetAppDataFrame(protocol.MaxByteCount, protocol.Version1)).To(Equal(f))
|
||||
})
|
||||
|
||||
It("adds a PING", func() {
|
||||
q.AddPing(protocol.Encryption1RTT)
|
||||
Expect(q.HasAppData()).To(BeTrue())
|
||||
Expect(q.GetAppDataFrame(protocol.MaxByteCount, protocol.Version1)).To(Equal(&wire.PingFrame{}))
|
||||
})
|
||||
})
|
||||
})
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue