fix(watchdog): refactored tcp recvMsg function, now the watchdog can be connected correctly

- Refactor TCP message reading to use ReadBytes and TrimSpace for better reliability
- Add connection success logging in main.go
- Update .gitignore to include logs.db-journal

.gitignore

@@ -47,3 +47,4 @@ super-frpc.exe
 *.db
 database.db
 logs.html
+logs.db-journal

main.go

@@ -105,11 +105,12 @@ func main() {
 	} else {
 		if !watchdog.Connect("127.0.0.1", config.Watchdog.Port) {
 			postLog.Error(fmt.Sprintf("Failed to connect to Watchdog at %s:%d", "127.0.0.1", config.Watchdog.Port))
+		} else {
+			postLog.Info(fmt.Sprintf("Connected to Watchdog at %s:%d", "127.0.0.1", config.Watchdog.Port))
+			is.watchdogConnected = true
 		}
 	}
 
-
-
 	addr := fmt.Sprintf("%s:%s", config.ListenAddr, config.ListenPort)
 	server := &http.Server{
 		Addr:         addr,

watchdog/tcpClient.go

@@ -7,6 +7,7 @@ import (
 	"super-frpc/postLog"
 	"sync"
 	"time"
+	"strings"
 )
 
 var (
@@ -83,7 +84,6 @@ func sendMsg(message string, target int) (string, error) {
 func recvMsg() {
     defer recvWg.Done()
 
-	for {
     tcpConnMutex.Lock()
     if tcpConn == nil {
         tcpConnMutex.Unlock()
@@ -92,17 +92,40 @@ func recvMsg() {
     conn := tcpConn
     tcpConnMutex.Unlock()
 
+    reader := bufio.NewReader(conn)
+
+    for {
         select {
         case <-stopRecvChan:
             return
         default:
             conn.SetReadDeadline(time.Now().Add(100 * time.Millisecond))
-			reader := bufio.NewReader(conn)
+            
-			line, err := reader.ReadString('\n')
+            // ⭐ 改为读取到换行符 \n 为止
+            data, err := reader.ReadBytes('\n')
+            
+            if len(data) > 0 {
+                // ⭐ 用 strings.TrimSpace 去掉末尾的 \n
+                line := strings.TrimSpace(string(data)) 
+                
+                if len(line) > 0 {
+                    select {
+                    case recvChan <- line:
+                    default:
+                    }
+
+                    if !isResponseMessage(line) {
+                        postLog.Debug(fmt.Sprintf("[Watchdog] TCP Socket received message: %s", line))
+                    }
+                }
+            }
+
             if err != nil {
                 if netErr, ok := err.(net.Error); ok && netErr.Timeout() {
                     continue
                 }
+                
+                // 处理非超时的严重错误（如服务端断开）
                 tcpConnMutex.Lock()
                 if tcpConn != nil {
                     tcpConn.Close()
@@ -112,23 +135,6 @@ func recvMsg() {
                 tcpConnMutex.Unlock()
                 return 
             }
-
-			line = line[:len(line)-1]
-			if len(line) > 0 {
-				select {
-				case recvChan <- line:
-				default:
-					select {
-					case <-recvChan:
-						recvChan <- line
-					default:
-					}
-				}
-
-				if len(line) > 0 && line != "success" && !isResponseMessage(line) {
-					postLog.Debug(fmt.Sprintf("[Watchdog] TCP Socket received message: %s", line))
-				}
-			}
         }
     }
 }