public void Reset_WithWaiters()
{
var autoResSlim = new AutoResetSuperSlimLock(false);
int releasedCounter = 0;
const int totalThreads = 5;
for (int i = 0; i < totalThreads; i++)
{
new Thread(() =>
{
autoResSlim.Wait();
Interlocked.Increment(ref releasedCounter);
})
{
IsBackground = true
}.Start();
}
Thread.Sleep(2000);
autoResSlim.Waiters.Should().Be(totalThreads);
autoResSlim.Reset();
Thread.Sleep(100);
autoResSlim.Waiters.Should().Be(0);
releasedCounter.Should().Be(totalThreads);
autoResSlim.IsSet.Should().BeFalse();
}
public void ConcurrentWaits_1()
{
var autoResSlim = new AutoResetSuperSlimLock(true);
var barrier = new ManualResetEvent(false);
int countOfObtained = 0;
var tasks = new List <Task>();
for (int i = 0; i < 4; i++)
{
var t = Task.Factory.StartNew(() =>
{
barrier.WaitOne();
if (autoResSlim.Wait(100))
{
Interlocked.Increment(ref countOfObtained);
}
});
tasks.Add(t);
}
barrier.Set();
Task.WaitAll(tasks.ToArray());
autoResSlim.IsSet.Should().BeFalse();
countOfObtained.Should().Be(1);
}
public void InternalOps()
{
var autoResSlim1 = new AutoResetSuperSlimLock(false);
autoResSlim1.IsSet.Should().BeFalse();
autoResSlim1.Waiters.Should().Be(0);
autoResSlim1.Waiters = 34;
autoResSlim1.Waiters.Should().Be(34);
autoResSlim1.Waiters.Should().Be(34);
autoResSlim1.TryAtomicXor(1, AutoResetSuperSlimLock.SignalledStatePos, AutoResetSuperSlimLock.SignalledStateMask);
autoResSlim1.IsSet.Should().BeTrue();
autoResSlim1.Waiters.Should().Be(34);
autoResSlim1.TryAtomicXor(0, AutoResetSuperSlimLock.SignalledStatePos, AutoResetSuperSlimLock.SignalledStateMask);
autoResSlim1.IsSet.Should().BeFalse();
autoResSlim1.AtomicChange(1, AutoResetSuperSlimLock.SignalledStatePos, AutoResetSuperSlimLock.SignalledStateMask);
autoResSlim1.IsSet.Should().BeTrue();
autoResSlim1.AtomicChange(0, AutoResetSuperSlimLock.SignalledStatePos, AutoResetSuperSlimLock.SignalledStateMask);
autoResSlim1.IsSet.Should().BeFalse();
autoResSlim1.Waiters.Should().Be(34);
}
public void ConcurrentWaits_1()
{
var autoResSlim = new AutoResetSuperSlimLock(true);
var barrier = new ManualResetEvent(false);
int countOfObtained = 0;
var tasks = new List<Task>();
for (int i = 0; i < 4; i++)
{
var t = Task.Factory.StartNew(() =>
{
barrier.WaitOne();
if (autoResSlim.Wait(100)) Interlocked.Increment(ref countOfObtained);
});
tasks.Add(t);
}
barrier.Set();
Task.WaitAll(tasks.ToArray());
autoResSlim.IsSet.Should().BeFalse();
countOfObtained.Should().Be(1);
}
public void IsSet_ReflectsState()
{
var autoResSlim1 = new AutoResetSuperSlimLock(true);
var autoResSlim2 = new AutoResetSuperSlimLock(false);
autoResSlim1.IsSet.Should().BeTrue();
autoResSlim2.IsSet.Should().BeFalse();
}
public void ConcurrentSetsAndWaits__3()
{
var autoResSlim = new AutoResetSuperSlimLock(false);
var obtainedEv = new AutoResetEvent(true);
var barrier = new ManualResetEvent(false);
var semaphore = new SemaphoreSlim(0, 4);
int countOfObtained = 0;
int countOfMissed = 0;
var tasks = new List<Task>();
for (int i = 0; i < 4; i++)
{
var t = Task.Factory.StartNew((p) =>
{
barrier.WaitOne();
for (int j = 0; j < 1000; j++)
{
if (autoResSlim.Wait())
{
Interlocked.Increment(ref countOfObtained);
// Console.WriteLine(countOfObtained + " _ " + p);
obtainedEv.Set();
}
else
{
Interlocked.Increment(ref countOfMissed);
}
}
semaphore.Release();
}, i);
tasks.Add(t);
}
var t1 = Task.Factory.StartNew(() =>
{
barrier.Set();
for (int i = 0; i < 4000; i++)
{
obtainedEv.WaitOne();
autoResSlim.Set();
// Console.WriteLine("*\t" + i);
}
});
tasks.Add(t1);
Task.WaitAll(tasks.ToArray());
for (int i = 0; i < 4; i++)
semaphore.Wait();
countOfObtained.Should().Be(4000);
autoResSlim.IsSet.Should().BeFalse();
}
public void Wait_WhenAlreadySet_ReturnsAndResets()
{
var autoResSlim = new AutoResetSuperSlimLock(true);
autoResSlim.Wait().Should().BeTrue();
autoResSlim.Wait(0).Should().BeFalse();
autoResSlim.IsSet.Should().BeFalse();
}
public void ConcurrentSetsAndWaits__3()
{
var autoResSlim = new AutoResetSuperSlimLock(false);
var obtainedEv = new AutoResetEvent(true);
var barrier = new ManualResetEvent(false);
var semaphore = new SemaphoreSlim(0, 4);
int countOfObtained = 0;
int countOfMissed = 0;
var tasks = new List <Task>();
for (int i = 0; i < 4; i++)
{
var t = Task.Factory.StartNew((p) =>
{
barrier.WaitOne();
for (int j = 0; j < 1000; j++)
{
if (autoResSlim.Wait())
{
Interlocked.Increment(ref countOfObtained);
// Console.WriteLine(countOfObtained + " _ " + p);
obtainedEv.Set();
}
else
{
Interlocked.Increment(ref countOfMissed);
}
}
semaphore.Release();
}, i);
tasks.Add(t);
}
var t1 = Task.Factory.StartNew(() =>
{
barrier.Set();
for (int i = 0; i < 4000; i++)
{
obtainedEv.WaitOne();
autoResSlim.Set();
// Console.WriteLine("*\t" + i);
}
});
tasks.Add(t1);
Task.WaitAll(tasks.ToArray());
for (int i = 0; i < 4; i++)
{
semaphore.Wait();
}
countOfObtained.Should().Be(4000);
autoResSlim.IsSet.Should().BeFalse();
}
public void Wait_WhenAlreadySet_ReturnsAndResets()
{
var autoResSlim = new AutoResetSuperSlimLock(true);
autoResSlim.Wait().Should().BeTrue();
autoResSlim.Wait(0).Should().BeFalse();
autoResSlim.IsSet.Should().BeFalse();
}
public void IsSet_ReflectsState()
{
var autoResSlim1 = new AutoResetSuperSlimLock(true);
var autoResSlim2 = new AutoResetSuperSlimLock(false);
autoResSlim1.IsSet.Should().BeTrue();
autoResSlim2.IsSet.Should().BeFalse();
}
public void InternalOps()
{
var autoResSlim1 = new AutoResetSuperSlimLock(false);
autoResSlim1.IsSet.Should().BeFalse();
autoResSlim1.Waiters.Should().Be(0);
autoResSlim1.Waiters = 34;
autoResSlim1.Waiters.Should().Be(34);
autoResSlim1.Waiters.Should().Be(34);
autoResSlim1.TryAtomicXor(1, AutoResetSuperSlimLock.SignalledStatePos, AutoResetSuperSlimLock.SignalledStateMask);
autoResSlim1.IsSet.Should().BeTrue();
autoResSlim1.Waiters.Should().Be(34);
autoResSlim1.TryAtomicXor(0, AutoResetSuperSlimLock.SignalledStatePos, AutoResetSuperSlimLock.SignalledStateMask);
autoResSlim1.IsSet.Should().BeFalse();
autoResSlim1.AtomicChange(1, AutoResetSuperSlimLock.SignalledStatePos, AutoResetSuperSlimLock.SignalledStateMask);
autoResSlim1.IsSet.Should().BeTrue();
autoResSlim1.AtomicChange(0, AutoResetSuperSlimLock.SignalledStatePos, AutoResetSuperSlimLock.SignalledStateMask);
autoResSlim1.IsSet.Should().BeFalse();
autoResSlim1.Waiters.Should().Be(34);
}