public void Subscribe(ISingleObserver <R> observer)
{
var n = 0;
var srcs = sources;
var a = new ISingleSource <T> [8];
try
{
foreach (var m in srcs)
{
if (n == a.Length)
{
var b = new ISingleSource <T> [n + (n >> 2)];
Array.Copy(a, 0, b, 0, n);
a = b;
}
a[n++] = m;
}
}
catch (Exception ex)
{
DisposableHelper.Error(observer, ex);
return;
}
SingleZipCoordinator <T, R> .Run(a, n, observer, mapper, delayErrors);
}
public void Subscribe(ISingleObserver <R> observer)
{
var srcs = sources;
var n = srcs.Length;
SingleZipCoordinator <T, R> .Run(srcs, n, observer, mapper, delayErrors);
}
internal static void Run(ISingleSource <T>[] srcs, int n, ISingleObserver <R> observer, Func <T[], R> mapper, bool delayErrors)
{
if (n == 0)
{
DisposableHelper.Complete(observer);
return;
}
if (n == 1)
{
new SingleMap <T, R>(srcs[0],
v => mapper(new T[] { v })
).Subscribe(observer);
return;
}
var parent = new SingleZipCoordinator <T, R>(observer, n, mapper, delayErrors);
observer.OnSubscribe(parent);
parent.Subscribe(srcs, n);
}
public InnerObserver(SingleZipCoordinator <T, R> parent, int index)
{
this.parent = parent;
this.index = index;
}