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v2fly/transport/internet/kcp/config.go
2016-07-15 21:27:23 +02:00

60 lines
1.2 KiB
Go

package kcp
type Config struct {
Mtu uint32 // Maximum transmission unit
Tti uint32
UplinkCapacity uint32
DownlinkCapacity uint32
Congestion bool
WriteBuffer uint32
ReadBuffer uint32
}
func (this *Config) Apply() {
effectiveConfig = *this
}
func (this *Config) GetSendingInFlightSize() uint32 {
size := this.UplinkCapacity * 1024 * 1024 / this.Mtu / (1000 / this.Tti) / 2
if size == 0 {
size = 8
}
return size
}
func (this *Config) GetSendingWindowSize() uint32 {
return this.GetSendingInFlightSize() * 4
}
func (this *Config) GetSendingQueueSize() uint32 {
return this.WriteBuffer / this.Mtu
}
func (this *Config) GetReceivingWindowSize() uint32 {
size := this.DownlinkCapacity * 1024 * 1024 / this.Mtu / (1000 / this.Tti) / 2
if size == 0 {
size = 8
}
return size
}
func (this *Config) GetReceivingQueueSize() uint32 {
return this.ReadBuffer / this.Mtu
}
func DefaultConfig() Config {
return Config{
Mtu: 1350,
Tti: 20,
UplinkCapacity: 5,
DownlinkCapacity: 20,
Congestion: false,
WriteBuffer: 1 * 1024 * 1024,
ReadBuffer: 1 * 1024 * 1024,
}
}
var (
effectiveConfig = DefaultConfig()
)