(6) thread-use the lock, interlocked, and monitor classes respectively to perform thread critical section operations (mutex) (example download)

(1). Description
This example demonstrates how to use the lock, interlocked, and monitor classes to perform thread-critical operations (mutex)
(2). Code
Using system;
Using system. Threading;
Using system. collections;

Namespace locks _ implement mutex operations in the critical section _
{
// Delegate Declaration (function signature)
Delegate string mymethoddelegate ();

Class myclass
{
Private Static arraylist arrlist = new arraylist ();
Private Static int I = 0;

Public static void add ()
{
// Method 1: implement with lock
// Lock (arrlist)
//{
// Arrlist. Add (I. tostring ());
// I ++;
//}

// Method 2: implement with interlicked class
// System. Threading. interlocked. increment (Ref I );
// Arrlist. Add (I. tostring ());

// Method 3: Use the monitor class
Try
{
// I. Unlimited time
// Stem. Threading. Monitor. Enter (arrlist );

// II. Obtain the exclusive lock at the specified time
If (system. Threading. Monitor. tryenter (arrlist, timespan. fromseconds (30) // obtain the exclusive lock of an object within 30 seconds. Flexible use can prevent deadlock
{// Avoid mutual waiting. You may not get the exclusive lock within a certain period of time.
// Occupy other exclusive locks (other exclusive locks that are waiting for them to be occupied are in the waiting state ),
// At this time, you can release the exclusive lock that you are occupying and try to get the exclusive lock of the desired object.
Arrlist. Add (I. tostring ());
I ++;
}
}
Catch
{
// Custom error handling code when an exception occurs
}
Finally
{
Monitor. Exit (arrlist); // The object must be released whether it is normal or an error occurs.
}
}

[Stathread]
Static void main (string [] ARGs)
{
Thread thread1 = new thread (New threadstart (ADD ));
Thread thread2 = new thread (New threadstart (ADD ));
Thread thread3 = new thread (New threadstart (ADD ));
Thread1.start ();
Thread2.start ();
Thread3.start ();

Console. Read ();

For (INT I = 0; I <arrlist. Count; I ++)
{
Console. writeline (arrlist [I]. tostring ());
}

Console. Read ();

}
}
}

The code in this example has been tested and runs properly!

(3) Sample download
Http://www.cnblogs.com/Files/ChengKing/ThreadExample.rar