private async Task ObserverBasedClientNotification()
{
var x = Next();
var gref = Clients[0][0].GetGrainRef(x);
Clients[0][0].GetRuntimeId(x);
WriteLog("{0} created grain", gref);
var promises = new List <Task <int> >();
// create an observer on each client
Parallel.For(0, Clients.Length, paralleloptions, i =>
{
for (int jj = 0; jj < Clients[i].Length; jj++)
{
int j = jj;
var promise = new TaskCompletionSource <int>();
var listener = new ClusterTestListener((num) =>
{
WriteLog("{3} observedcall {2} on Client[{0}][{1}]", i, j, num, gref);
promise.TrySetResult(num);
});
lock (promises)
promises.Add(promise.Task);
Clients[i][j].Subscribe(x, listener);
WriteLog("{2} subscribed to Client[{0}][{1}]", i, j, gref);
}
});
// call the grain
Clients[0][0].CallGrain(x);
await Task.WhenAll(promises);
var sortedresults = promises.Select(p => p.Result).OrderBy(num => num).ToArray();
// each client should get its own notification
for (int i = 0; i < sortedresults.Length; i++)
{
AssertEqual(sortedresults[i], i, gref);
}
}
private async Task StreamBasedClientNotification()
{
var x = Next();
var gref = Clients[0][0].GetGrainRef(x);
Clients[0][0].EnableStreamNotifications(x);
WriteLog("{0} created grain", gref);
var listeners = new List <ClusterTestListener>();
var promises = new List <Task <int> >();
// create an observer on each client
Parallel.For(0, Clients.Length, paralleloptions, i =>
{
for (int jj = 0; jj < Clients[i].Length; jj++)
{
int j = jj;
var promise = new TaskCompletionSource <int>();
var listener = new ClusterTestListener((num) =>
{
WriteLog("{3} observedcall {2} on Client[{0}][{1}]", i, j, num, gref);
promise.TrySetResult(num);
});
promises.Add(promise.Task);
listeners.Add(listener);
Clients[i][j].SubscribeStream(x, listener);
WriteLog("{2} subscribed to Client[{0}][{1}]", i, j, gref);
}
});
// call the grain
Clients[0][0].CallGrain(x);
await Task.WhenAll(promises);
// each client should get same value
foreach (var p in promises)
{
AssertEqual(1, p.Result, gref);
}
}