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.svn/pristine/fc/fc031a75fb0107cbcac5a7bba48946987c1b1f89.svn-base

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+package syncUtil
+
+import (
+	"sync"
+)
+
+// 读写锁工具类
+type RWLockerUtil struct {
+	// 锁集合
+	lockerMap map[string]*RWLocker
+
+	// 锁对象
+	rwMutex sync.RWMutex
+}
+
+// 创建新的锁工具类
+func NewRWLockerUtil() *RWLockerUtil {
+	return &RWLockerUtil{
+		lockerMap: make(map[string]*RWLocker, 8),
+	}
+}
+
+// 获取锁对象
+// lockName:锁名
+// 返回值：
+// RWLocker:读写锁对象
+func (this *RWLockerUtil) GetLock(lockName string) *RWLocker {
+	var rwLockerObj *RWLocker
+	var exists bool
+
+	func() {
+		this.rwMutex.RLock()
+		defer this.rwMutex.RUnlock()
+		rwLockerObj, exists = this.lockerMap[lockName]
+	}()
+	if exists {
+		return rwLockerObj
+	}
+
+	this.rwMutex.Lock()
+	defer this.rwMutex.Unlock()
+
+	rwLockerObj, exists = this.lockerMap[lockName]
+	if exists == false {
+		rwLockerObj = NewRWLocker()
+		this.lockerMap[lockName] = rwLockerObj
+	}
+
+	return rwLockerObj
+}
+
+// 释放读写锁对象
+// lockName:锁名
+func (this *RWLockerUtil) ReleaseLock(lockName string) {
+	this.rwMutex.Lock()
+	defer this.rwMutex.Unlock()
+	delete(this.lockerMap, lockName)
+}