fix:修复锁竞争问题

stream/persistence.go

@@ -25,6 +25,7 @@ type PersistenceManager struct {
 	pendingData   []interface{} // 待写入数据
 	pendingMutex  sync.Mutex    // 待写入数据互斥锁
 	isRunning     bool          // 是否运行中
+	runningMutex  sync.RWMutex  // 保护isRunning字段的读写锁
 	stopChan      chan struct{} // 停止通道
 
 	// 统计信息 (新增)
@@ -76,7 +77,12 @@ func (pm *PersistenceManager) Start() error {
 	pm.writeMutex.Lock()
 	defer pm.writeMutex.Unlock()
 
-	if pm.isRunning {
+	// 检查是否已经在运行
+	pm.runningMutex.RLock()
+	running := pm.isRunning
+	pm.runningMutex.RUnlock()
+
+	if running {
 		return fmt.Errorf("persistence manager already running")
 	}
 
@@ -85,7 +91,10 @@ func (pm *PersistenceManager) Start() error {
 		return fmt.Errorf("failed to create initial file: %w", err)
 	}
 
+	// 设置运行状态
+	pm.runningMutex.Lock()
 	pm.isRunning = true
+	pm.runningMutex.Unlock()
 
 	// 启动定时刷新
 	pm.startFlushTimer()
@@ -102,11 +111,20 @@ func (pm *PersistenceManager) Stop() error {
 	pm.writeMutex.Lock()
 	defer pm.writeMutex.Unlock()
 
-	if !pm.isRunning {
+	// 检查是否正在运行
+	pm.runningMutex.RLock()
+	running := pm.isRunning
+	pm.runningMutex.RUnlock()
+
+	if !running {
 		return nil
 	}
 
+	// 设置停止状态
+	pm.runningMutex.Lock()
 	pm.isRunning = false
+	pm.runningMutex.Unlock()
+
 	close(pm.stopChan)
 
 	// 停止定时器
@@ -128,7 +146,12 @@ func (pm *PersistenceManager) Stop() error {
 
 // PersistData 持久化单条数据
 func (pm *PersistenceManager) PersistData(data interface{}) error {
-	if !pm.isRunning {
+	// 检查是否正在运行
+	pm.runningMutex.RLock()
+	running := pm.isRunning
+	pm.runningMutex.RUnlock()
+
+	if !running {
 		return fmt.Errorf("persistence manager not running")
 	}
 
@@ -179,8 +202,13 @@ func (pm *PersistenceManager) GetStats() map[string]interface{} {
 	fileIndex := pm.fileIndex
 	pm.writeMutex.Unlock()
 
+	// 安全地读取运行状态
+	pm.runningMutex.RLock()
+	running := pm.isRunning
+	pm.runningMutex.RUnlock()
+
 	return map[string]interface{}{
-		"running":           pm.isRunning,
+		"running":           running,
 		"data_dir":          pm.dataDir,
 		"pending_count":     pendingCount,
 		"current_file_size": currentFileSize,
@@ -288,7 +316,12 @@ func (pm *PersistenceManager) flushPendingData() {
 // startFlushTimer 启动刷新定时器
 func (pm *PersistenceManager) startFlushTimer() {
 	pm.flushTimer = time.AfterFunc(pm.flushInterval, func() {
-		if pm.isRunning {
+		// 安全地检查运行状态
+		pm.runningMutex.RLock()
+		running := pm.isRunning
+		pm.runningMutex.RUnlock()
+
+		if running {
 			pm.flushPendingData()
 			pm.startFlushTimer() // 重新启动定时器
 		}

stream/stream.go

@@ -34,6 +34,7 @@ type Stream struct {
 
 	// 新增：线程安全控制
 	dataChanMux      sync.RWMutex // 保护dataChan访问的读写锁
+	sinksMux         sync.RWMutex // 保护sinks访问的读写锁
 	expansionMux     sync.Mutex   // 防止并发扩容的互斥锁
 	retryMux         sync.Mutex   // 控制持久化重试的互斥锁
 	expanding        int32        // 扩容状态标记，使用原子操作
@@ -543,12 +544,20 @@ func (s *Stream) sendResultNonBlocking(results []map[string]interface{}) {
 
 // callSinksAsync 异步调用所有sink函数
 func (s *Stream) callSinksAsync(results []map[string]interface{}) {
+	// 使用读锁安全地访问sinks切片
+	s.sinksMux.RLock()
 	if len(s.sinks) == 0 {
+		s.sinksMux.RUnlock()
 		return
 	}
 
+	// 复制sinks切片以避免在持有锁的情况下执行耗时操作
+	sinksCopy := make([]func(interface{}), len(s.sinks))
+	copy(sinksCopy, s.sinks)
+	s.sinksMux.RUnlock()
+
 	// 为每个sink创建异步任务
-	for _, sink := range s.sinks {
+	for _, sink := range sinksCopy {
 		// 捕获sink变量，避免闭包问题
 		currentSink := sink
 
@@ -935,7 +944,9 @@ func (s *Stream) safeSendToDataChan(data interface{}) bool {
 }
 
 func (s *Stream) AddSink(sink func(interface{})) {
+	s.sinksMux.Lock()
 	s.sinks = append(s.sinks, sink)
+	s.sinksMux.Unlock()
 }
 
 func (s *Stream) GetResultsChan() <-chan interface{} {