/// <summary>
/// Gets SmartDisposable object from cache if disposal conditions are not satisfied, otherwise creates new one.
/// </summary>
protected SmartDisposable GetOrCreateSmartDispoable()
{
var smartDisposable = this.Cache;
if (smartDisposable != null)
{
return smartDisposable.IncrementUsageCounter();
}
lock (this)
{
smartDisposable = this.Cache;
if (smartDisposable != null)
{
return smartDisposable.IncrementUsageCounter();
}
this.Cache = null;
var newSmartDisposable = this.CreateSmartDisposable();
if (newSmartDisposable == null)
{
throw new InvalidOperationException("The SmartDisposable object was not created");
}
this.Cache = newSmartDisposable;
return newSmartDisposable.IncrementUsageCounter();
}
}
/// <summary>
/// Evicts given instance of SmartDisposable object from cache.
/// </summary>
internal void InvalidateCache(SmartDisposable smartDisposable)
{
if (this.Cache == smartDisposable)
{
this.Cache = null;
}
}
