Xray-core/app/router/strategy_leastping.go

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package router
import (
"context"
"github.com/xtls/xray-core/app/observatory"
"github.com/xtls/xray-core/common"
"github.com/xtls/xray-core/core"
"github.com/xtls/xray-core/features/extension"
)
type LeastPingStrategy struct {
ctx context.Context
observatory extension.Observatory
}
func (l *LeastPingStrategy) InjectContext(ctx context.Context) {
l.ctx = ctx
}
func (l *LeastPingStrategy) PickOutbound(strings []string) string {
if l.observatory == nil {
common.Must(core.RequireFeatures(l.ctx, func(observatory extension.Observatory) error {
l.observatory = observatory
return nil
}))
}
observeReport, err := l.observatory.GetObservation(l.ctx)
if err != nil {
newError("cannot get observe report").Base(err).WriteToLog()
return ""
}
outboundsList := outboundList(strings)
if result, ok := observeReport.(*observatory.ObservationResult); ok {
status := result.Status
leastPing := int64(99999999)
selectedOutboundName := ""
for _, v := range status {
if outboundsList.contains(v.OutboundTag) && v.Alive && v.Delay < leastPing {
selectedOutboundName = v.OutboundTag
leastPing = v.Delay
}
}
return selectedOutboundName
}
2022-05-18 10:29:01 +03:00
// No way to understand observeReport
return ""
}
type outboundList []string
func (o outboundList) contains(name string) bool {
for _, v := range o {
if v == name {
return true
}
}
return false
}