Fix platform wrapper

experimental/libbox/log_client.go

@@ -0,0 +1,59 @@
+//go:build ios
+
+package libbox
+
+import (
+	"net"
+	"path/filepath"
+
+	"github.com/sagernet/sing/common"
+)
+
+type LogClient struct {
+	sockPath string
+	handler  LogClientHandler
+	conn     net.Conn
+}
+
+type LogClientHandler interface {
+	Connected()
+	Disconnected()
+	WriteLog(message string)
+}
+
+func NewLogClient(sharedDirectory string, handler LogClientHandler) *LogClient {
+	return &LogClient{
+		sockPath: filepath.Join(sharedDirectory, "log.sock"),
+		handler:  handler,
+	}
+}
+
+func (c *LogClient) Connect() error {
+	conn, err := net.DialUnix("unix", nil, &net.UnixAddr{
+		Name: c.sockPath,
+		Net:  "unix",
+	})
+	if err != nil {
+		return err
+	}
+	c.conn = conn
+	go c.loopConnection(&messageConn{conn})
+	return nil
+}
+
+func (c *LogClient) Disconnect() error {
+	return common.Close(c.conn)
+}
+
+func (c *LogClient) loopConnection(conn *messageConn) {
+	c.handler.Connected()
+	defer c.handler.Disconnected()
+	for {
+		message, err := conn.Read()
+		if err != nil {
+			c.handler.WriteLog("(log client error) " + err.Error())
+			return
+		}
+		c.handler.WriteLog(string(message))
+	}
+}