Fix reset outbounds

transport/v2rayhttp/client.go

@@ -155,6 +155,6 @@ func (c *Client) dialHTTP2(ctx context.Context) (net.Conn, error) {
 }
 
 func (c *Client) Close() error {
-	CloseIdleConnections(c.transport)
+	c.transport = ResetTransport(c.transport)
 	return nil
 }

transport/v2rayhttp/force_close.go

@@ -0,0 +1,47 @@
+package v2rayhttp
+
+import (
+	"net/http"
+	"reflect"
+	"sync"
+	"unsafe"
+
+	E "github.com/sagernet/sing/common/exceptions"
+
+	"golang.org/x/net/http2"
+)
+
+type clientConnPool struct {
+	t     *http2.Transport
+	mu    sync.Mutex
+	conns map[string][]*http2.ClientConn // key is host:port
+}
+
+type efaceWords struct {
+	typ  unsafe.Pointer
+	data unsafe.Pointer
+}
+
+func ResetTransport(rawTransport http.RoundTripper) http.RoundTripper {
+	switch transport := rawTransport.(type) {
+	case *http.Transport:
+		transport.CloseIdleConnections()
+		return transport.Clone()
+	case *http2.Transport:
+		connPool := transportConnPool(transport)
+		p := (*clientConnPool)((*efaceWords)(unsafe.Pointer(&connPool)).data)
+		p.mu.Lock()
+		defer p.mu.Unlock()
+		for _, vv := range p.conns {
+			for _, cc := range vv {
+				cc.Close()
+			}
+		}
+		return transport
+	default:
+		panic(E.New("unknown transport type: ", reflect.TypeOf(transport)))
+	}
+}
+
+//go:linkname transportConnPool golang.org/x/net/http2.(*Transport).connPool
+func transportConnPool(t *http2.Transport) http2.ClientConnPool