mirror of
https://github.com/PeernetOfficial/core.git
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71 lines
2.3 KiB
Go
71 lines
2.3 KiB
Go
package udt
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import (
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"time"
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"github.com/PeernetOfficial/core/udt/packet"
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)
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// CongestionControlParms permits a CongestionControl implementation to interface with the UDT socket
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type CongestionControlParms interface {
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// GetSndCurrSeqNo is the most recently sent packet ID
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GetSndCurrSeqNo() packet.PacketID
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// SetCongestionWindowSize sets the size of the congestion window (in packets)
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SetCongestionWindowSize(uint)
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// GetCongestionWindowSize gets the size of the congestion window (in packets)
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GetCongestionWindowSize() uint
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// GetPacketSendPeriod gets the current delay between sending packets
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GetPacketSendPeriod() time.Duration
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// SetPacketSendPeriod sets the current delay between sending packets
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SetPacketSendPeriod(time.Duration)
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// GetMaxFlowWindow is the largest number of unacknowledged packets we can receive (in packets)
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GetMaxFlowWindow() uint
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// GetReceiveRates is the current calculated receive rate and bandwidth (in packets/sec)
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GetReceiveRates() (recvSpeed, bandwidth uint)
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// GetRTT is the current calculated roundtrip time between peers
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GetRTT() time.Duration
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// GetMSS is the largest packet size we can currently send (in bytes)
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GetMSS() uint
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// SetACKPeriod sets the time between ACKs sent to the peer
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SetACKPeriod(time.Duration)
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// SetACKInterval sets the number of packets sent to the peer before sending an ACK
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SetACKInterval(uint)
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}
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// CongestionControl controls how timing is handled and UDT connections tuned
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type CongestionControl interface {
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// Init to be called (only) at the start of a UDT connection.
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Init(CongestionControlParms, time.Duration)
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// Close to be called when a UDT connection is closed.
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Close(CongestionControlParms)
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// OnACK to be called when an ACK packet is received
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OnACK(CongestionControlParms, packet.PacketID)
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// OnNAK to be called when a loss report is received
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OnNAK(CongestionControlParms, []packet.PacketID)
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// OnTimeout to be called when a timeout event occurs
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OnTimeout(CongestionControlParms)
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// OnPktSent to be called when data is sent
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OnPktSent(CongestionControlParms, packet.Packet)
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// OnPktRecv to be called when data is received
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OnPktRecv(CongestionControlParms, packet.DataPacket)
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// OnCustomMsg to process a user-defined packet
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OnCustomMsg(CongestionControlParms, packet.UserDefControlPacket)
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}
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