public void TestCancel()
{
#region Initialization
object lockObject = new object();
Timeout timeout = new Timeout(null);
TimeoutTask[] tasks;
timeout = new Timeout(lockObject);
tasks = new TimeoutTask[10];
for (int i = 0; i < tasks.Length; i++)
{
tasks[i] = new TimeoutTask();
timeout.Now = 1000 + i * 100;
timeout.Schedule(tasks[i]);
}
timeout.Now = 100;
#endregion
timeout.Duration = 200;
timeout.Now = 1700;
for (int i = 0; i < tasks.Length; i++)
if (i % 2 == 1)
tasks[i].Cancel();
timeout.Tick();
for (int i = 0; i < tasks.Length; i++)
{
Assert.AreEqual(i % 2 == 0 && i < 6, tasks[i].IsExpired, "isExpired " + i);
}
}
public void TestDelay()
{
#region Initialization
object lockObject = new object();
Timeout timeout = new Timeout(null);
TimeoutTask[] tasks;
timeout = new Timeout(lockObject);
tasks = new TimeoutTask[10];
for (int i = 0; i < tasks.Length; i++)
{
tasks[i] = new TimeoutTask();
timeout.Now = 1000 + i * 100;
timeout.Schedule(tasks[i]);
}
timeout.Now = 100;
#endregion
TimeoutTask task = new TimeoutTask();
timeout.Now = 1100;
timeout.Schedule(task, 300);
timeout.Duration = 200;
timeout.Now = 1300;
timeout.Tick();
Assert.IsFalse(task.IsExpired, "delay");
timeout.Now = 1500;
timeout.Tick();
Assert.IsFalse(task.IsExpired, "delay");
timeout.Now = 1700;
timeout.Tick();
Assert.IsTrue(task.IsExpired, "delay");
}
public void TestTouch()
{
#region Initialization
object lockObject = new object();
Timeout timeout = new Timeout(null);
TimeoutTask[] tasks;
timeout = new Timeout(lockObject);
tasks = new TimeoutTask[10];
for (int i = 0; i < tasks.Length; i++)
{
tasks[i] = new TimeoutTask();
timeout.Now = 1000 + i * 100;
timeout.Schedule(tasks[i]);
}
timeout.Now = 100;
#endregion
timeout.Duration = 200;
timeout.Now = 1350;
timeout.Schedule(tasks[2]);
timeout.Now = 1500;
timeout.Tick();
for (int i = 0; i < tasks.Length; i++)
{
Assert.AreEqual(i != 2 && i < 4, tasks[i].IsExpired, "isExpired " + i);
}
timeout.Now = 1550;
timeout.Tick();
for (int i = 0; i < tasks.Length; i++)
{
Assert.AreEqual(i < 4, tasks[i].IsExpired, "isExpired " + i);
}
}
public void Initialise()
{
isBlocking = false;
job = null;
jobResult = null;
storedException = null;
task = null;
timeout = null;
timeoutResult = false;
}
public void TestStress()
{
#region Initialization
object lockObject = new object();
Timeout timeout = new Timeout(null);
TimeoutTask[] tasks;
timeout = new Timeout(lockObject);
tasks = new TimeoutTask[10];
for (int i = 0; i < tasks.Length; i++)
{
tasks[i] = new TimeoutTask();
timeout.Now = 1000 + i * 100;
timeout.Schedule(tasks[i]);
}
timeout.Now = 100;
#endregion
int LOOP = 500;
bool[] running = new bool[] { true };
int[] count = new int[] { 0, 0, 0 };
timeout.Now = (DateTime.UtcNow.Ticks / 1000);
timeout.Duration = 500;
// Start a ticker thread that will tick over the timer frequently.
System.Threading.Thread ticker = new System.Threading.Thread(
new System.Threading.ThreadStart(
() =>
{
while (running[0])
{
try
{
// use lock.wait so we have a memory barrier and
// have no funny optimisation issues.
lock (lockObject)
{
System.Threading.Monitor.Wait(lockObject, 30);
}
System.Threading.Thread.Sleep(30);
timeout.Tick((DateTime.UtcNow.Ticks / 1000));
}
catch (Exception e)
{
Console.Error.WriteLine(e.StackTrace);
}
}
}
)
);
ticker.Start();
// start lots of test threads
for (int i = 0; i < LOOP; i++)
{
//
System.Threading.Thread th = new System.Threading.Thread(
new System.Threading.ThreadStart(
() =>
{
// count how many threads were started (should == LOOP)
lock (count)
{
count[0]++;
}
// create a task for this thread
TimeoutTask task = new TimeoutTask1(count);
// this thread will loop and each loop with schedule a
// task with a delay on top of the timeouts duration
// mostly this thread will then cancel the task
// But once it will wait and the task will expire
int once = (int)(10 + ((DateTime.UtcNow.Ticks / 1000) % 50));
// do the looping until we are stopped
int loop = 0;
while (running[0])
{
try
{
long delay = 1000;
long wait = 100 - once;
if (loop++ == once)
{
// THIS loop is the one time we wait 1000ms
lock (count)
{
count[1]++;
}
delay = 200;
wait = 1000;
}
timeout.Schedule(task, delay);
// do the wait
System.Threading.Thread.Sleep((int)wait);
// cancel task (which may have expired)
task.Cancel();
}
catch (Exception e)
{
Console.Error.WriteLine(e.StackTrace);
}
}
}
));
th.Start();
}
// run test for 5s
System.Threading.Thread.Sleep(8000);
lock (lockObject)
{
running[0] = false;
}
// give some time for test to stop
System.Threading.Thread.Sleep(2000);
timeout.Tick((DateTime.UtcNow.Ticks / 1000));
System.Threading.Thread.Sleep(1000);
// check the counts
Assert.AreEqual(LOOP, count[0], "count threads");
Assert.AreEqual(LOOP, count[1], "count once waits");
Assert.AreEqual(LOOP, count[2], "count expires");
}
protected override Task OnConnect()
{
_connectionCompleted = false;
_closeConnection = false;
_receivedSegments = new List <byte[]>();
_expectedSegments = 0;
_expectedSegmentsCheckSum = null;
_incomingQueue = new ProducerConsumerQueue <byte[]>();
_conductorInitialized = false;
_connectionCompletionSource = new TaskCompletionSource <object>();
_signalingTransporter.RegisterRequestHandler <WebRTCIceCandidateRequest, WebRTCIceCandidateResponse>(OnWebRTCCandidateRequest);
Logger.LogDebug("Initializing adapter with role '{Role}'.", Role);
if (Role == WebRTCAdapterRole.Accept)
{
ThreadFactory.StartNew(async() =>
{
try
{
await InitConnection();
if (_offerRequest != null)
{
Logger.LogDebug("Adapter initialized by an offer request. sending answer...");
var response = await OnWebRTCOfferRequest(_offerRequest);
if (_closeConnection)
{
return;
}
_signalingTransporter.SendResponse(response.Response, _offerRequestToken);
}
else
{
Logger.LogDebug("Waiting for WebRTC offer...");
}
}
catch (Exception ex)
{
if (!_connectionCompleted)
{
_connectionCompleted = true;
_connectionCompletionSource.SetException(new ResonanceWebRTCConnectionFailedException(ex));
_closeConnection = true;
}
}
});
}
else
{
ThreadFactory.StartNew(async() =>
{
try
{
await InitConnection();
var offer = await CreateOffer();
var response = await _signalingTransporter.SendRequestAsync <WebRTCOfferRequest, WebRTCOfferResponse>(new WebRTCOfferRequest()
{
Offer = offer,
}, new ResonanceRequestConfig()
{
Timeout = TimeSpan.FromSeconds(30)
});
_conductor.OnOfferReply("answer", response.Answer.Sdp);
FlushIceCandidates();
}
catch (Exception ex)
{
if (!_connectionCompleted)
{
_connectionCompleted = true;
_connectionCompletionSource.SetException(new ResonanceWebRTCConnectionFailedException(ex));
_closeConnection = true;
}
}
});
}
TimeoutTask.StartNew(() =>
{
if (!_connectionCompleted)
{
_connectionCompleted = true;
_connectionCompletionSource.SetException(new ResonanceWebRTCConnectionFailedException(new TimeoutException("Could not initialize the connection within the given timeout.")));
_closeConnection = true;
}
}, ConnectionTimeout);
return(_connectionCompletionSource.Task);
}
public uint QueueTimeout(TimeSpan span, TimeoutTask task)
{
DelegateTask dTask = cache.Dequeue();
dTask.Timeout = task;
return dispatcher.Add(span, delegate {
QueueWait(dTask);
return dTask.TimeoutResult;
});
}
private async Task <bool> WaitForAcquireAsync(IReadOnlyDictionary <IDatabase, Task <bool> > tryAcquireTasks)
{
using var timeout = new TimeoutTask(this._primitive.AcquireTimeout, this._cancellationToken);
var incompleteTasks = new HashSet <Task>(tryAcquireTasks.Values)
{
timeout.Task
};
var successCount = 0;
var failCount = 0;
var faultCount = 0;
while (true)
{
var completed = await Task.WhenAny(incompleteTasks).ConfigureAwait(false);
if (completed == timeout.Task)
{
await completed.ConfigureAwait(false); // propagates cancellation
return(false); // true timeout
}
if (completed.Status == TaskStatus.RanToCompletion)
{
var result = await((Task <bool>)completed).ConfigureAwait(false);
if (result)
{
++successCount;
if (RedLockHelper.HasSufficientSuccesses(successCount, this._databases.Count))
{
return(true);
}
}
else
{
++failCount;
if (RedLockHelper.HasTooManyFailuresOrFaults(failCount, this._databases.Count))
{
return(false);
}
}
}
else // faulted or canceled
{
// if we get too many faults, the lock is not possible to acquire, so we should throw
++faultCount;
if (RedLockHelper.HasTooManyFailuresOrFaults(faultCount, this._databases.Count))
{
var faultingTasks = tryAcquireTasks.Values.Where(t => t.IsCanceled || t.IsFaulted)
.ToArray();
if (faultingTasks.Length == 1)
{
await faultingTasks[0].ConfigureAwait(false); // propagate the error
}
throw new AggregateException(faultingTasks.Select(t => t.Exception ?? new TaskCanceledException(t).As <Exception>()))
.Flatten();
}
++failCount;
if (RedLockHelper.HasTooManyFailuresOrFaults(failCount, this._databases.Count))
{
return(false);
}
}
incompleteTasks.Remove(completed);
Invariant.Require(incompleteTasks.Count > 1, "should be more than just timeout left");
}
}
/// <summary>
/// Called when the adapter is connecting.
/// </summary>
/// <returns></returns>
protected override Task OnConnect()
{
bool completed = false;
TaskCompletionSource <object> completionSource = new TaskCompletionSource <object>();
Task.Factory.StartNew(() =>
{
try
{
_client = SignalRClientFactory.Default.Create(Mode, Url);
_client.StartAsync().GetAwaiter().GetResult();
if (Role == SignalRAdapterRole.Connect)
{
_client.On(ResonanceHubMethods.Connected, () =>
{
try
{
if (!completed)
{
completed = true;
completionSource.SetResult(true);
}
}
catch (Exception ex)
{
if (!completed)
{
Logger.LogError(ex, "Error occurred after successful connection.");
completed = true;
completionSource.SetException(ex);
}
}
});
_client.On(ResonanceHubMethods.Declined, () =>
{
try
{
if (!completed)
{
completed = true;
var ex = new ConnectionDeclinedException();
Logger.LogError(ex, "Error occurred after session created.");
completionSource.SetException(ex);
}
}
catch (Exception ex)
{
if (!completed)
{
Logger.LogError(ex, "Error occurred after session created.");
completed = true;
completionSource.SetException(ex);
}
}
});
}
_client.On(ResonanceHubMethods.Disconnected, () =>
{
if (State == ResonanceComponentState.Connected)
{
//OnDisconnect(false); //Don't know what to do here.. We already have the resonance disconnection message.
//Maybe just raise an event..
}
});
_client.On(ResonanceHubMethods.ServiceDown, () =>
{
OnFailed(new ServiceDownException());
});
Logger.LogInformation("Authenticating with the remote hub {HubUrl}...", _client.Url);
_client.InvokeAsync(ResonanceHubMethods.Login, Credentials).GetAwaiter().GetResult();
if (Role == SignalRAdapterRole.Connect)
{
Logger.LogInformation("Connecting to service {ServiceId}...", ServiceId);
SessionId = _client.InvokeAsync <String>(ResonanceHubMethods.Connect, ServiceId).GetAwaiter().GetResult();
}
else
{
Logger.LogInformation("Accepting connection {SessionId}...", SessionId);
_client.InvokeAsync(ResonanceHubMethods.AcceptConnection, SessionId).GetAwaiter().GetResult();
if (!completed)
{
completed = true;
completionSource.SetResult(true);
}
}
_client.On <byte[]>(ResonanceHubMethods.DataAvailable, (data) => { OnDataAvailable(data); });
_client.Error += OnError;
_client.Reconnecting += OnReconnecting;
_client.Reconnected += OnReconnected;
}
catch (Exception ex)
{
completed = true;
Logger.LogError(ex, "Error occurred while trying to connect.");
completionSource.SetException(ex);
}
});
TimeoutTask.StartNew(() =>
{
if (!completed)
{
completed = true;
completionSource.SetException(new TimeoutException("Could not connect after the given timeout."));
}
}, ConnectionTimeout);
return(completionSource.Task);
}
/// <summary>
///
/// </summary>
/// <param name="task">task</param>
/// <param name="delay">A delay in addition to the default duration of the timeout</param>
public void Schedule(TimeoutTask task,long delay)
{
lock (_lock)
{
if (task._timestamp!=0)
{
task.Unlink();
task._timestamp=0;
}
task._timeout=this;
task._expired=false;
task._delay=delay;
task._timestamp = _now+delay;
TimeoutTask last=_head._prev;
while (last!=_head)
{
if (last._timestamp <= task._timestamp)
break;
last=last._prev;
}
last.Link(task);
}
}
public void Schedule(TimeoutTask task)
{
Schedule(task,0L);
}
public void TestStress()
{
#region Initialization
object lockObject = new object();
Timeout timeout = new Timeout(null);
TimeoutTask[] tasks;
timeout = new Timeout(lockObject);
tasks = new TimeoutTask[10];
for (int i = 0; i < tasks.Length; i++)
{
tasks[i] = new TimeoutTask();
timeout.Now = 1000 + i * 100;
timeout.Schedule(tasks[i]);
}
timeout.Now = 100;
#endregion
int LOOP = 500;
bool[] running = new bool[] { true };
int[] count = new int[] { 0, 0, 0 };
timeout.Now = (DateTime.UtcNow.Ticks / 1000);
timeout.Duration = 500;
// Start a ticker thread that will tick over the timer frequently.
System.Threading.Thread ticker = new System.Threading.Thread(
new System.Threading.ThreadStart(
() =>
{
while (running[0])
{
try
{
// use lock.wait so we have a memory barrier and
// have no funny optimisation issues.
lock (lockObject)
{
System.Threading.Monitor.Wait(lockObject, 30);
}
System.Threading.Thread.Sleep(30);
timeout.Tick((DateTime.UtcNow.Ticks / 1000));
}
catch (Exception e)
{
Console.Error.WriteLine(e.StackTrace);
}
}
}
)
);
ticker.Start();
// start lots of test threads
for (int i = 0; i < LOOP; i++)
{
//
System.Threading.Thread th = new System.Threading.Thread(
new System.Threading.ThreadStart(
() =>
{
// count how many threads were started (should == LOOP)
lock (count)
{
count[0]++;
}
// create a task for this thread
TimeoutTask task = new TimeoutTask1(count);
// this thread will loop and each loop with schedule a
// task with a delay on top of the timeouts duration
// mostly this thread will then cancel the task
// But once it will wait and the task will expire
int once = (int)(10 + ((DateTime.UtcNow.Ticks / 1000) % 50));
// do the looping until we are stopped
int loop = 0;
while (running[0])
{
try
{
long delay = 1000;
long wait = 100 - once;
if (loop++ == once)
{
// THIS loop is the one time we wait 1000ms
lock (count)
{
count[1]++;
}
delay = 200;
wait = 1000;
}
timeout.Schedule(task, delay);
// do the wait
System.Threading.Thread.Sleep((int)wait);
// cancel task (which may have expired)
task.Cancel();
}
catch (Exception e)
{
Console.Error.WriteLine(e.StackTrace);
}
}
}
));
th.Start();
}
// run test for 5s
System.Threading.Thread.Sleep(8000);
lock (lockObject)
{
running[0] = false;
}
// give some time for test to stop
System.Threading.Thread.Sleep(2000);
timeout.Tick((DateTime.UtcNow.Ticks / 1000));
System.Threading.Thread.Sleep(1000);
// check the counts
Assert.AreEqual(LOOP, count[0], "count threads");
Assert.AreEqual(LOOP, count[1], "count once waits");
Assert.AreEqual(LOOP, count[2], "count expires");
}
