/// <summary>
///
/// </summary>
/// <param name="pool"></param>
public PooledObject(ObjectPool <T> pool)
{
Assert.IsNotNull(pool);
_pool = pool;
_item = pool.CreateObject(CancellationToken.None);
}
private void FactoryDestroyObject(ObjectPoolItem <T> item)
{
_factory.DestroyObject(item.Value);
Log.Trace("ObjectPool item(key:{0}) destroyed.", item.Key);
}
internal ObjectPoolItem <T> CreateObject(CancellationToken cancellationToken)
{
ObjectPoolItem <T> item = null;
while (true)
{
if (_idleItems.Count > 0)
{
lock (_idleItems)
{
if (_idleItems.Count > 0)
{
var last = _idleItems.Last;
_idleItems.RemoveLast();
item = last.Value;
Log.Trace("Item(key:{0}) reused from object pool. idle: {1}, active: {2}.", item.Key, _idleItems.Count, _activeItems.Count);
}
}
lock (_activeItems)
{
_activeItems.Add(item.Key, item);
}
_factory.InitializeObject(item.Value);
break;
}
else
{
var count = _idleItems.Count + _activeItems.Count;
if (count < MaxSize)
{
var creationDate = LocalTime.Default.Now;
var value = _factory.CreateObject();
var key = Interlocked.Increment(ref _key);
item = new ObjectPoolItem <T>(key, value, creationDate);
lock (_activeItems)
{
_activeItems.Add(item.Key, item);
}
Log.Trace("New item(key:{0}) created in object pool. idle: {1}, active: {2}.", key, _idleItems.Count, _activeItems.Count);
break;
}
else
{
Log.Trace("object pool is active. Waiting for idle item...");
_idleEvent.Reset();
WaitHandle[] waitHandles =
{
cancellationToken.WaitHandle,
_idleEvent
};
var i = WaitHandle.WaitAny(waitHandles, 30000, false);
if (i == 0)
{
break;
}
else if (i == 1)
{
}
else if (i == WaitHandle.WaitTimeout)
{
throw new ApplicationException("ObjectPool.CreateObject timeout.");
}
}
}
}
return(item);
}