feat: 添加socket工具

src/framework/socket/tcp_server.go

@@ -0,0 +1,83 @@
+package socket
+
+import (
+	"fmt"
+	"net"
+	"strings"
+
+	"be.ems/src/framework/logger"
+)
+
+// SocketTCP TCP服务端
+type SocketTCP struct {
+	Addr     string        `json:"addr"` // 主机地址
+	Port     int64         `json:"port"` // 端口
+	Listen   *net.Listener `json:"listen"`
+	StopChan chan struct{} `json:"stop"` // 停止信号
+}
+
+// New 创建TCP服务端
+func (s *SocketTCP) New() (*SocketTCP, error) {
+	// IPV6地址协议
+	proto := "tcp"
+	if strings.Contains(s.Addr, ":") {
+		proto = "tcp6"
+		s.Addr = fmt.Sprintf("[%s]", s.Addr)
+	}
+	address := fmt.Sprintf("%s:%d", s.Addr, s.Port)
+
+	ln, err := net.Listen(proto, address)
+	if err != nil {
+		return nil, err
+	}
+
+	s.Listen = &ln
+	s.StopChan = make(chan struct{}, 1)
+	return s, nil
+}
+
+// Close 关闭当前TCP服务端
+func (s *SocketTCP) Close() {
+	if s.Listen != nil {
+		s.StopChan <- struct{}{}
+		(*s.Listen).Close()
+	}
+}
+
+// Resolve 处理消息
+func (s *SocketTCP) Resolve(bufferSize int, callback func([]byte, int)) error {
+	if s.Listen == nil {
+		return fmt.Errorf("tcp service not created")
+	}
+
+	ln := *s.Listen
+	buffer := make([]byte, bufferSize)
+
+	for {
+		select {
+		case <-s.StopChan:
+			return fmt.Errorf("udp service stop")
+		default:
+			conn, err := ln.Accept()
+			if err != nil {
+				logger.Errorf("Error accepting connection: %v ", err)
+				continue
+			}
+			defer conn.Close()
+
+			// 读取数据
+			n, err := conn.Read(buffer)
+			if err != nil {
+				fmt.Println("Error reading from TCP connection:", err)
+				continue
+			}
+
+			callback(buffer, n)
+
+			// 发送响应
+			if _, err = conn.Write([]byte("tcp>")); err != nil {
+				fmt.Println("Error sending response:", err)
+			}
+		}
+	}
+}