增加基于tap设备的桥接访问模式

sessdata/limit_rate.go

@@ -0,0 +1,45 @@
+package sessdata
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/bjdgyc/anylink/common"
+
+	"golang.org/x/time/rate"
+)
+
+var Sess = &ConnSession{}
+
+func init() {
+	return
+	tick := time.Tick(time.Second * 2)
+	go func() {
+		for range tick {
+			uP := common.HumanByte(float64(Sess.BandwidthUpPeriod / BandwidthPeriodSec))
+			dP := common.HumanByte(float64(Sess.BandwidthDownPeriod / BandwidthPeriodSec))
+			uA := common.HumanByte(float64(Sess.BandwidthUpAll))
+			dA := common.HumanByte(float64(Sess.BandwidthDownAll))
+
+			fmt.Printf("rateUp:%s rateDown:%s allUp %s allDown %s \n",
+				uP, dP, uA, dA)
+		}
+	}()
+}
+
+type LimitRater struct {
+	limit *rate.Limiter
+}
+
+// lim: 令牌产生速率
+// burst: 允许的最大爆发速率
+func NewLimitRater(lim, burst int) *LimitRater {
+	limit := rate.NewLimiter(rate.Limit(lim), burst)
+	return &LimitRater{limit: limit}
+}
+
+// bt 不能超过burst大小
+func (l *LimitRater) Wait(bt int) error {
+	return l.limit.WaitN(context.Background(), bt)
+}