[I] public void ForEachAsyncReleasesProcessedItemsInMemory()
{
WeakReference <SmallObject> deallocReference = null;
SmallObject obj = null;
var lazyCollection = GetLazyCollection(
weakRef => deallocReference = weakRef,
delegate { }, //...
delegate { }, //Making sure that all of the objects have gone through pipeline
delegate { }, //so that the first one can be deallocated
delegate { }, //Various GC roots prevent several of previous (2 or 3)
delegate { }, //items in the lazy Enumerable from deallocation during forced GC
delegate { }, //...
delegate {
GC.Collect(2, GCCollectionMode.Forced, true);
deallocReference.TryGetTarget(out obj);
}
);
var index = CreateIndexName();
var observableBulk = this._client.BulkAll(lazyCollection, f => f
.MaxDegreeOfParallelism(1)
.Size(1)
.Index(index)
.BufferToBulk((r, buffer) => r.IndexMany(buffer)));
observableBulk.Wait(TimeSpan.FromSeconds(30), delegate { });
deallocReference.Should().NotBeNull();
obj.Should().BeNull();
}
private IEnumerable <SmallObject> GetLazyCollection(params Action <WeakReference <SmallObject> >[] getFirstObjectCallBack)
{
var counter = 0;
foreach (var callback in getFirstObjectCallBack)
{
var obj = new SmallObject {
Id = ++counter
};
callback(new WeakReference <SmallObject>(obj));
yield return(obj);
}
}
