public PublisherCacheInner(ISubscriber <T> actual, PublisherCache <T> parent, int bufferSize, PublisherCacheItem h)
{
this.actual = actual;
this.parent = parent;
this.bufferSize = bufferSize;
this.current = h;
}
bool CheckTerminated(bool d, bool empty, ISubscriber <T> a, PublisherCache <T> p)
{
if (d && empty)
{
Exception ex = p.Error();
if (ex != null)
{
a.OnError(ex);
}
else
{
a.OnComplete();
}
return(true);
}
return(false);
}
internal void Drain()
{
if (!bp.Enter())
{
return;
}
PublisherCache <T> p = parent;
ISubscriber <T> a = actual;
PublisherCacheItem item = current;
int c = offset;
int missed = 1;
long r = bp.Requested();
long e = 0L;
for (;;)
{
if (IsCancelled())
{
return;
}
if (CheckTerminated(p.IsDone(), item.lvCount() == c && item.lvNext() == null, a, p))
{
return;
}
while (r != e)
{
if (IsCancelled())
{
return;
}
bool d = p.IsDone();
var next = item.lvNext();
var f = item.lvCount();
bool empty = f == c && next == null;
if (CheckTerminated(d, empty, a, p))
{
return;
}
if (empty)
{
break;
}
if (f == c)
{
item = next;
c = 0;
}
T v = item.array[c];
c++;
}
if (CheckTerminated(p.IsDone(), item.lvCount() == c && item.lvNext() == null, a, p))
{
return;
}
r = bp.Requested();
if (e == r)
{
current = item;
offset = c;
r = bp.Produced(e);
if (r != 0L)
{
e = 0L;
continue;
}
}
missed = bp.Leave(missed);
if (missed == 0)
{
break;
}
}
}