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refactor: Unified active health detection, supported by load balancing policy group

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This commit is contained in:
Skyxim
2022-05-02 13:50:10 +08:00
parent 4b04faa88b
commit b929a19f48
4 changed files with 69 additions and 87 deletions
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44
adapter/outboundgroup/fallback.go
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@ -3,10 +3,6 @@ package outboundgroup
import (
"context"
"encoding/json"
"github.com/Dreamacro/clash/log"
"go.uber.org/atomic"
"time"
"github.com/Dreamacro/clash/adapter/outbound"
"github.com/Dreamacro/clash/component/dialer"
C "github.com/Dreamacro/clash/constant"
@ -15,9 +11,7 @@ import (
type Fallback struct {
*GroupBase
disableUDP bool
failedTimes *atomic.Int32
failedTime *atomic.Int64
disableUDP bool
}
func (f *Fallback) Now() string {
@ -31,8 +25,7 @@ func (f *Fallback) DialContext(ctx context.Context, metadata *C.Metadata, opts .
c, err := proxy.DialContext(ctx, metadata, f.Base.DialOptions(opts...)...)
if err == nil {
c.AppendToChains(f)
f.failedTimes.Store(-1)
f.failedTime.Store(-1)
f.onDialSuccess()
} else {
f.onDialFailed()
}
@ -46,8 +39,7 @@ func (f *Fallback) ListenPacketContext(ctx context.Context, metadata *C.Metadata
pc, err := proxy.ListenPacketContext(ctx, metadata, f.Base.DialOptions(opts...)...)
if err == nil {
pc.AppendToChains(f)
f.failedTimes.Store(-1)
f.failedTime.Store(-1)
f.onDialSuccess()
} else {
f.onDialFailed()
}
@ -55,32 +47,6 @@ func (f *Fallback) ListenPacketContext(ctx context.Context, metadata *C.Metadata
return pc, err
}
func (f *Fallback) onDialFailed() {
if f.failedTime.Load() == -1 {
log.Warnln("%s first failed", f.Name())
now := time.Now().UnixMilli()
f.failedTime.Store(now)
f.failedTimes.Store(1)
} else {
if f.failedTime.Load()-time.Now().UnixMilli() > 5*time.Second.Milliseconds() {
f.failedTimes.Store(-1)
f.failedTime.Store(-1)
} else {
failedCount := f.failedTimes.Inc()
log.Warnln("%s failed count: %d", f.Name(), failedCount)
if failedCount >= 5 {
log.Warnln("because %s failed multiple times, active health check", f.Name())
for _, proxyProvider := range f.providers {
go proxyProvider.HealthCheck()
}
f.failedTimes.Store(-1)
f.failedTime.Store(-1)
}
}
}
}
// SupportUDP implements C.ProxyAdapter
func (f *Fallback) SupportUDP() bool {
if f.disableUDP {
@ -133,8 +99,6 @@ func NewFallback(option *GroupCommonOption, providers []provider.ProxyProvider)
option.Filter,
providers,
}),
disableUDP: option.DisableUDP,
failedTimes: atomic.NewInt32(-1),
failedTime: atomic.NewInt64(-1),
disableUDP: option.DisableUDP,
}
}