/// <summary>
/// Demonstrate that messangers work across threads.
/// </summary>
private static void DemoMultithreadedness()
{
Console.WriteLine("Multi-threaded");
var queue = new QueriableAsynqueue <int, string>(i => "Hey " + i);
// Create 10 threads (more or less, depending on the ThreadPool)
// and have each of them send queries to the queue
for (var i = 0; i < 10; ++i)
{
ThreadPool.QueueUserWorkItem(async _ =>
{
var originalId = Thread.CurrentThread.ManagedThreadId;
Console.WriteLine("T" + originalId + " starting");
for (var x = 1; x <= 1000000; ++x)
{
var a = await queue.Query(x);
if (x % 100000 == 0)
{
Console.WriteLine("T" + originalId + " is now " + Thread.CurrentThread.ManagedThreadId);
await Task.Delay(1);
}
}
Console.WriteLine("T" + originalId + " stopping, (is now " + Thread.CurrentThread.ManagedThreadId + ")");
});
}
Console.ReadLine();
}
public void Queriable_queue_returns_value_to_sender()
{
var q = new QueriableAsynqueue <int, string>(i => "Hello " + i);
var task = Task.Run(async() =>
{
var result = await q.Query(7);
result.ShouldEqual("Hello 7");
});
task.Wait();
}
/// <summary>
/// Demonstrate the performance of the queriable messenger.
/// </summary>
private static async Task <long> BidirectionalQueue()
{
var queue = new QueriableAsynqueue <int, string>(i => "Hey " + i);
var w = Stopwatch.StartNew();
for (var x = 1; x < 1000000; ++x)
{
await queue.Query(x);
}
return(w.ElapsedMilliseconds);
}
public void Queriable_queue_handles_multiple_sends()
{
var q = new QueriableAsynqueue <int, string>(i => "Hello " + i);
var t1 = Task.Run(async() =>
{
var result = await q.Query(1);
result.ShouldEqual("Hello 1");
});
var t2 = Task.Run(async() =>
{
var result = await q.Query(2);
result.ShouldEqual("Hello 2");
});
Task.WaitAll(t1, t2);
}
public void Queriable_queue_throws_exception_on_sender()
{
Func <int, string> f = (i) => { throw new Exception("Ruh roh"); };
var q = new QueriableAsynqueue <int, string>(f);
var task = Task.Run(async() =>
{
try
{
var result = await q.Query(7);
}
catch (Exception ex)
{
ex.Message.ShouldEqual("Ruh roh");
}
});
task.Wait();
}
