Coordinate two threads using Monitor : Monitor : Thread C# Examples

    
using  System;
using  System.Threading;

public  class  MainClass
{
        static  private  int  counter  =  0;

        static  private  object  theLock  =  new  Object();

        static  private  void  ThreadFunc1()  {
                lock(  theLock  )  {
                        for(  int  i  =  0;  i  <  50;  ++i  )  {
                                Monitor.Wait(  theLock,  Timeout.Infinite  );
                                Console.WriteLine(  "{0}  from  Thread  {1}",  ++counter,  Thread.CurrentThread.GetHashCode()  );
                                Monitor.Pulse(  theLock  );
                        }
                }
        }

        static  private  void  ThreadFunc2()  {
                lock(  theLock  )  {
                        for(  int  i  =  0;  i  <  50;  ++i  )  {
                                Monitor.Pulse(  theLock  );
                                Monitor.Wait(  theLock,  Timeout.Infinite  );
                                Console.WriteLine(  "{0}  from  Thread  {1}",  ++counter,  Thread.CurrentThread.GetHashCode()  );
                        }
                }
        }

        static  void  Main()  {
                Thread  thread1  =  new  Thread(  new  ThreadStart(ThreadFunc1)  );
                Thread  thread2  =  new  Thread(  new  ThreadStart(ThreadFunc2)  );
                thread1.Start();
                thread2.Start();
        }
}
    
   
  
   

Output

1 from Thread 3
2 from Thread 4
3 from Thread 3
4 from Thread 4
5 from Thread 3
6 from Thread 4
7 from Thread 3
8 from Thread 4
9 from Thread 3
10 from Thread 4
11 from Thread 3
12 from Thread 4
13 from Thread 3
14 from Thread 4
15 from Thread 3
16 from Thread 4
17 from Thread 3
18 from Thread 4
19 from Thread 3
20 from Thread 4
21 from Thread 3
22 from Thread 4
23 from Thread 3
24 from Thread 4
25 from Thread 3
26 from Thread 4
27 from Thread 3
28 from Thread 4
29 from Thread 3
30 from Thread 4
31 from Thread 3
32 from Thread 4
33 from Thread 3
34 from Thread 4
35 from Thread 3
36 from Thread 4
37 from Thread 3
38 from Thread 4
39 from Thread 3
40 from Thread 4
41 from Thread 3
42 from Thread 4
43 from Thread 3
44 from Thread 4
45 from Thread 3
46 from Thread 4
47 from Thread 3
48 from Thread 4
49 from Thread 3
50 from Thread 4
51 from Thread 3
52 from Thread 4
53 from Thread 3
54 from Thread 4
55 from Thread 3
56 from Thread 4
57 from Thread 3
58 from Thread 4
59 from Thread 3
60 from Thread 4
61 from Thread 3
62 from Thread 4
63 from Thread 3
64 from Thread 4
65 from Thread 3
66 from Thread 4
67 from Thread 3
68 from Thread 4
69 from Thread 3
70 from Thread 4
71 from Thread 3
72 from Thread 4
73 from Thread 3
74 from Thread 4
75 from Thread 3
76 from Thread 4
77 from Thread 3
78 from Thread 4
79 from Thread 3
80 from Thread 4
81 from Thread 3
82 from Thread 4
83 from Thread 3
84 from Thread 4
85 from Thread 3
86 from Thread 4
87 from Thread 3
88 from Thread 4
89 from Thread 3
90 from Thread 4
91 from Thread 3
92 from Thread 4
93 from Thread 3
94 from Thread 4
95 from Thread 3
96 from Thread 4
97 from Thread 3
98 from Thread 4
99 from Thread 3
100 from Thread 4