private static async Task YieldableActionTask_Simple_Yield_Async()
{
var e = new ManualResetEvent(false);
var task = new YieldableActionTask(token =>
{
Assert.IsFalse(token.IsYieldRequested);
e.Set();
while (!token.IsYieldRequested)
{
;
}
return(true);
});
task.RecalculatePriority();
Assert.IsTrue(task.IsRunnable);
Assert.AreEqual(1L, task.Priority);
using var s = PhysicalScheduler.Create();
using var l = new LogicalScheduler(s);
l.Schedule(task);
e.WaitOne();
await l.PauseAsync();
}
private static async Task YieldableActionTask_Generic_Simple_Yield_Async()
{
var e = new ManualResetEvent(false);
var x = default(int);
var task = new YieldableActionTask <int>((state, token) =>
{
Assert.IsFalse(token.IsYieldRequested);
x = state;
e.Set();
while (!token.IsYieldRequested)
{
;
}
return(true);
}, 42);
task.RecalculatePriority();
Assert.IsTrue(task.IsRunnable);
Assert.AreEqual(1L, task.Priority);
using (var s = PhysicalScheduler.Create())
using (var l = new LogicalScheduler(s))
{
l.Schedule(task);
e.WaitOne();
await l.PauseAsync();
}
Assert.AreEqual(42, x);
}
private static async Task YieldableActionTask_Simple_YieldAndResume_Async()
{
var e1 = new AutoResetEvent(false);
var e2 = new AutoResetEvent(false);
var p1 = new ManualResetEvent(false);
var state = 0;
var task = new YieldableActionTask(token =>
{
Assert.IsFalse(token.IsYieldRequested);
switch (state)
{
case 0:
e1.Set();
while (!token.IsYieldRequested)
{
;
}
p1.Set();
state++;
return(false);
case 1:
e2.Set();
state++;
return(true);
default:
Assert.Fail();
break;
}
return(true);
});
task.RecalculatePriority();
Assert.IsTrue(task.IsRunnable);
Assert.AreEqual(1L, task.Priority);
using var s = PhysicalScheduler.Create();
using var l = new LogicalScheduler(s);
l.Schedule(task);
e1.WaitOne();
await l.PauseAsync();
p1.WaitOne();
l.Continue();
e2.WaitOne();
}
public void YieldableActionTask_Simple()
{
var e = new ManualResetEvent(false);
var task = new YieldableActionTask(token => e.Set());
task.RecalculatePriority();
Assert.IsTrue(task.IsRunnable);
Assert.AreEqual(1L, task.Priority);
using var s = PhysicalScheduler.Create();
using var l = new LogicalScheduler(s);
l.Schedule(task);
e.WaitOne();
}
public void YieldableActionTask_Generic_Simple()
{
var e = new ManualResetEvent(false);
var x = default(int);
var task = new YieldableActionTask <int>((state, token) => { x = state; e.Set(); return(true); }, 42);
task.RecalculatePriority();
Assert.IsTrue(task.IsRunnable);
Assert.AreEqual(1L, task.Priority);
using (var s = PhysicalScheduler.Create())
using (var l = new LogicalScheduler(s))
{
l.Schedule(task);
e.WaitOne();
}
Assert.AreEqual(42, x);
}
private static async Task YieldableActionTask_Generic_YieldAndResume_Async()
{
const int N = 10;
var isRunning = new AutoResetEvent(false);
var stoppedRunning = new AutoResetEvent(false);
var iterationCount = new CountdownEvent(N);
var i = 2;
var primes = new List <int>();
var task = new YieldableActionTask <List <int> >((primes2, token) =>
{
Assert.AreSame(primes, primes2);
isRunning.Set();
var sw = Stopwatch.StartNew();
while (true)
{
if (sw.ElapsedMilliseconds > 50 && token.IsYieldRequested)
{
break;
}
var isPrime = true;
for (var d = 2; d <= Math.Sqrt(i); d++)
{
if (i % d == 0)
{
isPrime = false;
break;
}
}
if (isPrime)
{
primes2.Add(i);
}
i++;
}
iterationCount.Signal();
try
{
if (iterationCount.CurrentCount == 0)
{
return(true);
}
return(false);
}
finally
{
stoppedRunning.Set();
}
}, primes);
task.RecalculatePriority();
Assert.IsTrue(task.IsRunnable);
Assert.AreEqual(1L, task.Priority);
using (var s = PhysicalScheduler.Create())
using (var l = new LogicalScheduler(s))
{
l.Schedule(task);
for (var j = 0; j < N; j++)
{
isRunning.WaitOne();
await l.PauseAsync();
stoppedRunning.WaitOne();
l.Continue();
}
iterationCount.Wait();
}
Assert.IsTrue(Primes().Take(primes.Count).SequenceEqual(primes));
}
