fix: 修复 timer.Ticker 和 lockstep 包存在的内存泄漏问题

server/conn.go

@@ -277,7 +277,7 @@ func (slf *Conn) Write(packet []byte, callback ...func(err error)) {
 }
 
 func (slf *Conn) init() {
-	if slf.server.ticker != nil {
+	if slf.server.ticker != nil && slf.server.connTickerSize > 0 {
 		if slf.server.tickerAutonomy {
 			slf.ticker = timer.GetTicker(slf.server.connTickerSize)
 		} else {
@@ -335,6 +335,9 @@ func (slf *Conn) init() {
 func (slf *Conn) Close(err ...error) {
 	slf.mu.Lock()
 	if slf.closed {
+		if slf.ticker != nil {
+			slf.ticker.Release()
+		}
 		slf.mu.Unlock()
 		return
 	}

server/lockstep/lockstep.go

@@ -123,6 +123,9 @@ func (slf *Lockstep[ClientID, Command]) StartBroadcast() {
 		return
 	}
 	slf.running = true
+	if slf.ticker == nil {
+		slf.ticker = timer.GetTicker(10)
+	}
 	slf.runningLock.Unlock()
 	slf.currentFrame = slf.initFrame
 
@@ -175,7 +178,10 @@ func (slf *Lockstep[ClientID, Command]) StopBroadcast() {
 	slf.running = false
 	slf.runningLock.Unlock()
 
-	slf.ticker.StopTimer("lockstep")
+	if slf.ticker != nil {
+		slf.ticker.Release()
+	}
+	slf.ticker = nil
 
 	slf.OnLockstepStoppedEvent()
 

utils/timer/ticker.go

@@ -38,7 +38,11 @@ func (slf *Ticker) Release() {
 	}
 	slf.lock.Unlock()
 
-	slf.timer.tickers = append(slf.timer.tickers, slf)
+	if len(slf.timer.tickers) < tickerPoolSize {
+		slf.timer.tickers = append(slf.timer.tickers, slf)
+	} else {
+		slf.wheel.Stop()
+	}
 }
 
 // StopTimer 停止特定名称的调度器

utils/timer/timer.go

@@ -6,8 +6,21 @@ import (
 	"github.com/RussellLuo/timingwheel"
 )
 
+var tickerPoolSize = 96
+
 var timer = new(Timer)
 
+// SetTickerPoolSize 设置定时器池大小
+//   - 默认值为 96，当定时器池中的定时器不足时，会自动创建新的定时器，当定时器释放时，会将多余的定时器进行释放，否则将放入定时器池中
+func SetTickerPoolSize(size int) {
+	if size <= 0 {
+		panic("ticker pool size must be greater than 0")
+	}
+	timer.lock.Lock()
+	defer timer.lock.Unlock()
+	tickerPoolSize = size
+}
+
 func GetTicker(size int, options ...Option) *Ticker {
 	return timer.NewTicker(size, options...)
 }