NewPacketList returns an initialized list.

NewReceivedPacketHandler creates a new receivedPacketHandler.

NewSentPacketHandler creates a new sentPacketHandler.

ErrAckForSkippedPacket occurs when the client sent an ACK for a packet number that we intentionally skipped.

ErrDuplicateOrOutOfOrderAck occurs when a duplicate or an out-of-order ACK is received.

ErrDuplicatePacket occurres when a duplicate packet is received.

ErrPacketSmallerThanLastStopWaiting occurs when a packet arrives with a packet number smaller than the largest LeastUnacked of a StopWaitingFrame.

ErrTooManyTrackedSentPackets occurs when the sentPacketHandler has to keep track of too many packets.

A Packet is a packet +gen linkedlist.

PacketElement is an element of a linked list.

PacketList represents a doubly linked list.

ReceivedPacketHandler handles ACKs needed to send for incoming packets.

SentPacketHandler handles ACKs received for outgoing packets.