public CacheThread(TestDoubleBarrelLRUCache outerInstance, DoubleBarrelLRUCache <CloneableObject, object> c, CloneableObject[] objs, DateTime endTime)
{
this.OuterInstance = outerInstance;
this.c = c;
this.Objs = objs;
this.EndTime = endTime;
}
public virtual void TestThreadCorrectness()
{
const int NUM_THREADS = 4;
const int CACHE_SIZE = 512;
int OBJ_COUNT = 3 * CACHE_SIZE;
DoubleBarrelLRUCache <CloneableObject, object> c = new DoubleBarrelLRUCache <CloneableObject, object>(1024);
CloneableObject[] objs = new CloneableObject[OBJ_COUNT];
for (int i = 0; i < OBJ_COUNT; i++)
{
objs[i] = new CloneableObject(new object());
}
CacheThread[] threads = new CacheThread[NUM_THREADS];
DateTime endTime = DateTime.Now.AddSeconds(1);
for (int i = 0; i < NUM_THREADS; i++)
{
threads[i] = new CacheThread(this, c, objs, endTime);
threads[i].Start();
}
for (int i = 0; i < NUM_THREADS; i++)
{
threads[i].Join();
Assert.False(threads[i].Failed);
}
//System.out.println("hits=" + totHit + " misses=" + totMiss);
}
private void TestCache(DoubleBarrelLRUCache <CloneableInteger, object> cache, int n)
{
object dummy = new object();
for (int i = 0; i < n; i++)
{
cache.Put(new CloneableInteger(i), dummy);
}
// access every 2nd item in cache
for (int i = 0; i < n; i += 2)
{
Assert.IsNotNull(cache.Get(new CloneableInteger(i)));
}
// add n/2 elements to cache, the ones that weren't
// touched in the previous loop should now be thrown away
for (int i = n; i < n + (n / 2); i++)
{
cache.Put(new CloneableInteger(i), dummy);
}
// access every 4th item in cache
for (int i = 0; i < n; i += 4)
{
Assert.IsNotNull(cache.Get(new CloneableInteger(i)));
}
// add 3/4n elements to cache, the ones that weren't
// touched in the previous loops should now be thrown away
for (int i = n; i < n + (n * 3 / 4); i++)
{
cache.Put(new CloneableInteger(i), dummy);
}
// access every 4th item in cache
for (int i = 0; i < n; i += 4)
{
Assert.IsNotNull(cache.Get(new CloneableInteger(i)));
}
}
