上传程序Dictionary 字典哈希--多读一写锁ReaderWriterLock

最新推荐文章于 2019-01-30 16:11:19 发布

转载最新推荐文章于 2019-01-30 16:11:19 发布 · 92 阅读

本文介绍了一种使用C#实现的车辆控制信息管理方法，通过Dictionary字典存储车辆控制信息，利用终端号作为Key，车辆信息控制对象作为Value，并介绍了如何进行增删查改操作及读写锁的使用。

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//上传程序Dictionary 字典 哈希
/// <summary>
/// 车辆控制信息哈斯表,Key是终端号，Value是车辆信息控制对象
/// </summary>
private Dictionary<string, MsgObject> _MsgObjectHashMap = new Dictionary<string, MsgObject>();
public Dictionary<string, MsgObject> MsgObjectHashMap { get { return _MsgObjectHashMap; } }
//用法
//判断是否包含
if (LogicManager.MsgObjectHashMap.ContainsKey(key))
{
MsgObject controlObject = LogicManager.MsgObjectHashMap[key];
//删除
LogicManager.MsgObjectHashMap.Remove(key);//处理之后移除   
//添加
if (!LogicManager.MsgObjectHashMap.ContainsKey(msgObjeKey))
{
LogicManager.MsgObjectHashMap.Add(msgObjeKey, controlObject);
}
-----------
/// <summary>
/// 连接列表
/// </summary>
public Dictionary<string, CAPacket> CaSessionTable = new Dictionary<string, CAPacket>();

//读写锁
/// <summary>
/// 车辆控制信息哈斯表锁
/// </summary>
private ReaderWriterLock _MsgObjectHashMapLock = new ReaderWriterLock();
public ReaderWriterLock MsgObjectHashMapLock { get { return _MsgObjectHashMapLock; } }
//用法：
LogicManager.DriverInfoHashMapLock.AcquireReaderLock(5000);//设定5000毫秒 获取读锁
if (LogicManager.DriverInfoHashMapLock.IsReaderLockHeld) //判断一下在释放锁
{
LogicManager.DriverInfoHashMapLock.ReleaseLock(); //或.ReleaseReaderLock();
}
//更新驾驶员信息
LogicManager.DriverInfoHashMapLock.AcquireWriterLock(5000);
if (LogicManager.DriverInfoHashMapLock.IsWriterLockHeld)
{
LogicManager.DriverInfoHashMapLock.ReleaseWriterLock();
}