fix rate limitter not being used

rhp/listener.go

@@ -1,6 +1,7 @@
 package rhp
 
 import (
+	"context"
 	"net"
 
 	"golang.org/x/time/rate"
@@ -24,7 +25,7 @@ type (
 
 	rhpConn struct {
 		net.Conn
-
+		rl, wl  *rate.Limiter
 		monitor DataMonitor
 	}
 
@@ -66,6 +67,10 @@ func WithDataMonitor(m DataMonitor) Option {
 func (c *rhpConn) Read(b []byte) (int, error) {
 	n, err := c.Conn.Read(b)
 	c.monitor.ReadBytes(n)
+	if err != nil {
+		return n, err
+	}
+	c.rl.WaitN(context.Background(), len(b)) // error can be ignored since context will never be cancelled and len(b) should never exceed burst size
 	return n, err
 }
 
@@ -74,6 +79,10 @@ func (c *rhpConn) Read(b []byte) (int, error) {
 func (c *rhpConn) Write(b []byte) (int, error) {
 	n, err := c.Conn.Write(b)
 	c.monitor.WriteBytes(n)
+	if err != nil {
+		return n, err
+	}
+	c.wl.WaitN(context.Background(), len(b)) // error can be ignored since context will never be cancelled and len(b) should never exceed burst size
 	return n, err
 }
 
@@ -84,6 +93,8 @@ func (l *rhpListener) Accept() (net.Conn, error) {
 	}
 	return &rhpConn{
 		Conn:    c,
+		rl:      l.readLimiter,
+		wl:      l.writeLimiter,
 		monitor: l.monitor,
 	}, nil
 }