public void TestWaitingWithPredicate()
{
using (var ev = new SignalEvent())
{
int waiterEntered = 0;
int waitResult = 0;
int waitCondition = 0;
int condEvaluated = 0;
object waiterRef = null;
var task = Task.Run(() =>
{
using (var waiter = ev.Factory.CreateWaiter())
{
Interlocked.Exchange(ref waiterRef, waiter);
lock (waiter)
{
Interlocked.Increment(ref waiterEntered);
if (waiter.Wait(s => { Interlocked.Increment(ref condEvaluated); return(Volatile.Read(ref waitCondition) > 0); }, (object)null, 60000))
{
Interlocked.Exchange(ref waitResult, 1);
}
else
{
Interlocked.Exchange(ref waitResult, 2);
}
}
}
});
TimingAssert.AreEqual(10000, 1, () => Volatile.Read(ref waiterEntered));
lock (waiterRef)
{
ev.Signal();
}
TimingAssert.AreEqual(10000, 2, () => Volatile.Read(ref condEvaluated));
lock (waiterRef)
{
Assert.AreEqual(0, Volatile.Read(ref waitResult));
}
lock (waiterRef)
{
Interlocked.Increment(ref waitCondition);
ev.Signal();
}
TimingAssert.AreEqual(10000, 3, () => Volatile.Read(ref condEvaluated));
TimingAssert.AreEqual(10000, 1, () => Volatile.Read(ref waitResult));
task.Wait();
}
}
public void TestSignalReceived()
{
using (var ev = new SignalEvent())
{
int waiterEntered = 0;
int waitResult = 0;
object waiterRef = null;
var task = Task.Run(() =>
{
using (var waiter = ev.Factory.CreateWaiter())
{
Interlocked.Exchange(ref waiterRef, waiter);
lock (waiter)
{
Interlocked.Increment(ref waiterEntered);
if (waiter.Wait(60000))
{
Interlocked.Exchange(ref waitResult, 1);
}
else
{
Interlocked.Exchange(ref waitResult, 2);
}
}
}
});
TimingAssert.AreEqual(10000, 1, () => Volatile.Read(ref waiterEntered));
lock (waiterRef)
{
ev.Signal();
}
TimingAssert.AreEqual(10000, 1, () => Volatile.Read(ref waitResult));
task.Wait();
}
}
public void TestWaitingMultipleEvents()
{
using (var ev = new SignalEvent())
using (var ev2 = new SignalEvent())
using (var ev3 = new SignalEvent())
{
int waiterEntered = 0;
int waitResult = 0;
int waitCondition = 0;
int condEvaluated = 0;
object waiterRef = null;
var task = Task.Run(() =>
{
var factory = SignalWaiterFactory.Create(ev.Factory, ev2.Factory);
var factory2 = SignalWaiterFactory.Create(factory, ev3.Factory);
using (var waiter = factory2.CreateWaiter())
{
Interlocked.Exchange(ref waiterRef, waiter);
lock (waiter)
{
Interlocked.Increment(ref waiterEntered);
if (waiter.Wait(s => { Interlocked.Increment(ref condEvaluated); return(Volatile.Read(ref waitCondition) > 0); }, (object)null, 60000))
{
Interlocked.Exchange(ref waitResult, 1);
}
else
{
Interlocked.Exchange(ref waitResult, 2);
}
if (waiter.Wait(s => { Interlocked.Increment(ref condEvaluated); return(Volatile.Read(ref waitCondition) > 1); }, (object)null, 60000))
{
Interlocked.Exchange(ref waitResult, 3);
}
else
{
Interlocked.Exchange(ref waitResult, 4);
}
if (waiter.Wait(s => { Interlocked.Increment(ref condEvaluated); return(Volatile.Read(ref waitCondition) > 2); }, (object)null, 60000))
{
Interlocked.Exchange(ref waitResult, 5);
}
else
{
Interlocked.Exchange(ref waitResult, 6);
}
}
}
});
TimingAssert.AreEqual(10000, 1, () => Volatile.Read(ref waiterEntered));
lock (waiterRef)
{
Interlocked.Increment(ref waitCondition);
ev.Signal();
}
TimingAssert.AreEqual(10000, 1, () => Volatile.Read(ref waitResult));
lock (waiterRef)
{
Interlocked.Increment(ref waitCondition);
ev2.Signal();
}
TimingAssert.AreEqual(10000, 3, () => Volatile.Read(ref waitResult));
lock (waiterRef)
{
Interlocked.Increment(ref waitCondition);
ev2.Signal();
}
TimingAssert.AreEqual(10000, 5, () => Volatile.Read(ref waitResult));
task.Wait();
}
}