互斥鎖(Mutex)
互斥鎖是一個互斥的同步對象,意味著同一時間有且僅有一個線程可以獲取它。
互斥鎖可適用于一個共享資源每次只能被一個線程訪問的情況
函數:
//創建一個處于未獲取狀態的互斥鎖Public Mutex();//如果owned為true,互斥鎖的初始狀態就是被主線程所獲取,否則處于未獲取狀態Public Mutex(bool owned);
如果要獲取一個互斥鎖。應調用互斥鎖上的WaitOne()方法,該方法繼承于Thread.WaitHandle類
它處于等到狀態直至所調用互斥鎖可以被獲取,因此該方法將組織住主調線程直到指定的互斥鎖可用,如果不需要擁有互斥鎖,用ReleaseMutex方法釋放,從而使互斥鎖可以被另外一個線程所獲取。
using System;using System.Collections.Generic;using System.Linq;using System.Text; using System.Threading; namespace MyTTCon{ class shareRes {  public static int count = 0;  public static Mutex mutex = new Mutex(); }  class IncThread {  int number;  public Thread thrd;  public IncThread(string name, int n)  {   thrd = new Thread(this.run);   number = n;   thrd.Name = name;   thrd.Start();  }  void run()  {   Console.WriteLine(thrd.Name + "正在等待 the mutex");   //申請   shareRes.mutex.WaitOne();   Console.WriteLine(thrd.Name + "申請到 the mutex");   do   {    Thread.Sleep(1000);    shareRes.count++;    Console.WriteLine("In " + thrd.Name + "ShareRes.count is " + shareRes.count);    number--;   } while (number > 0);   Console.WriteLine(thrd.Name + "釋放 the nmutex");   // 釋放   shareRes.mutex.ReleaseMutex();  } } class DecThread {  int number;  public Thread thrd;  public DecThread(string name, int n)  {   thrd = new Thread(this.run);   number = n;   thrd.Name = name;   thrd.Start();  }  void run()  {   Console.WriteLine(thrd.Name + "正在等待 the mutex");   //申請   shareRes.mutex.WaitOne();   Console.WriteLine(thrd.Name + "申請到 the mutex");   do   {    Thread.Sleep(1000);    shareRes.count--;    Console.WriteLine("In " + thrd.Name + "ShareRes.count is " + shareRes.count);    number--;   } while (number > 0);   Console.WriteLine(thrd.Name + "釋放 the nmutex");   // 釋放   shareRes.mutex.ReleaseMutex();  } }  class Program {  static void Main(string[] args)  {   IncThread mthrd1 = new IncThread("IncThread thread ", 5);   DecThread mthrd2 = new DecThread("DecThread thread ", 5);   mthrd1.thrd.Join();   mthrd2.thrd.Join();  } }}以上就是本文的全部內容,希望對大家的學習有所幫助,也希望大家多多支持武林網。
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