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.svn/pristine/66/6604ddf9fd99648487db8e77ab74a256057d05c1.svn-base

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+package syncUtil
+
+import (
+	"sync"
+)
+
+// 锁工具类
+type LockerUtil struct {
+	// 锁集合
+	lockerMap map[string]*Locker
+
+	// 锁对象
+	rwMutex sync.RWMutex
+}
+
+// 创建新的锁工具类
+func NewLockerUtil() *LockerUtil {
+	return &LockerUtil{
+		lockerMap: make(map[string]*Locker, 8),
+	}
+}
+
+// 获取锁对象
+// lockName:锁名
+// 返回值：
+// *Locker:锁对象
+func (this *LockerUtil) GetLock(lockName string) *Locker {
+	var lockerObj *Locker
+	var exists bool
+
+	func() {
+		this.rwMutex.RLock()
+		defer this.rwMutex.RUnlock()
+		lockerObj, exists = this.lockerMap[lockName]
+	}()
+	if exists {
+		return lockerObj
+	}
+
+	this.rwMutex.Lock()
+	defer this.rwMutex.Unlock()
+
+	lockerObj, exists = this.lockerMap[lockName]
+	if !exists {
+		lockerObj = NewLocker()
+		this.lockerMap[lockName] = lockerObj
+	}
+
+	return lockerObj
+}
+
+// 释放锁对象
+// lockName:锁名
+func (this *LockerUtil) ReleaseLock(lockName string) {
+	this.rwMutex.Lock()
+	defer this.rwMutex.Unlock()
+	delete(this.lockerMap, lockName)
+}