feat: 添加socket工具

src/framework/socket/udp_server.go

@@ -0,0 +1,80 @@
+package socket
+
+import (
+	"fmt"
+	"net"
+	"strings"
+)
+
+// SocketUDP UDP服务端
+type SocketUDP struct {
+	Addr     string        `json:"addr"` // 主机地址
+	Port     int64         `json:"port"` // 端口
+	Conn     *net.UDPConn  `json:"conn"`
+	StopChan chan struct{} `json:"stop"` // 停止信号
+}
+
+// New 创建UDP服务端
+func (s *SocketUDP) New() (*SocketUDP, error) {
+	// IPV6地址协议
+	proto := "udp"
+	if strings.Contains(s.Addr, ":") {
+		proto = "udp6"
+		s.Addr = fmt.Sprintf("[%s]", s.Addr)
+	}
+	address := fmt.Sprintf("%s:%d", s.Addr, s.Port)
+
+	// 解析 UDP 地址
+	udpAddr, err := net.ResolveUDPAddr(proto, address)
+	if err != nil {
+		return nil, err
+	}
+
+	// 监听 UDP 地址
+	conn, err := net.ListenUDP("udp", udpAddr)
+	if err != nil {
+		return nil, err
+	}
+
+	s.Conn = conn
+	s.StopChan = make(chan struct{}, 1)
+	return s, nil
+}
+
+// CloseService 关闭当前UDP服务端
+func (s *SocketUDP) Close() {
+	if s.Conn != nil {
+		s.StopChan <- struct{}{}
+		(*s.Conn).Close()
+	}
+}
+
+// Resolve 处理消息
+func (s *SocketUDP) Resolve(bufferSize int, callback func([]byte, int)) error {
+	if s.Conn == nil {
+		return fmt.Errorf("udp service not created")
+	}
+
+	buffer := make([]byte, bufferSize)
+
+	for {
+		select {
+		case <-s.StopChan:
+			return fmt.Errorf("udp service stop")
+		default:
+			// 读取数据
+			n, addr, err := s.Conn.ReadFromUDP(buffer)
+			if err != nil {
+				fmt.Println("Error reading from UDP connection:", err)
+				continue
+			}
+
+			callback(buffer, n)
+
+			// 发送响应
+			if _, err = s.Conn.WriteToUDP([]byte("udp>"), addr); err != nil {
+				fmt.Println("Error sending response:", err)
+			}
+		}
+	}
+}