Mega Code Archive
Interlocked Increment and Interlocked Decrement
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using System;
using System.Threading;
class Test
{
static void Main()
{
Thread thread1 = new Thread(new ThreadStart(ThreadMethod));
Thread thread2 = new Thread(new ThreadStart(ThreadMethod));
thread1.Start();
thread2.Start();
thread1.Join();
thread2.Join();
GC.Collect();
GC.WaitForPendingFinalizers();
Console.WriteLine(CountClass.UnsafeInstanceCount);
Console.WriteLine(CountClass.SafeInstanceCount);
}
static void ThreadMethod()
{
for(int i = 0; i < 10; i++)
{
new CountClass();
}
}
}
class CountClass
{
static int unsafeInstanceCount = 0;
static int safeInstanceCount = 0;
static public int UnsafeInstanceCount
{
get {return unsafeInstanceCount;}
}
static public int SafeInstanceCount
{
get {return safeInstanceCount;}
}
public CountClass()
{
unsafeInstanceCount++;
Interlocked.Increment(ref safeInstanceCount);
}
~CountClass()
{
unsafeInstanceCount--;
Interlocked.Decrement(ref safeInstanceCount);
}
}
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