private void OnOutputDragDroppedTo(SocketInput target)
{
// if sockets connected already
// do nothing
if (_currentDraggingSocket.HasConnection() && target.HasConnection())
{
if (_currentDraggingSocket.connection == target.connection)
{
_currentDraggingSocket = null;
drawer.CancelDrag();
return;
}
}
if (target != null)
{
// check if input allows multiple connection
if (target.HasConnection())
{
// disconnect old connection
if (target.connectionType != ConnectionType.Multiple)
{
Disconnect(target.connection);
}
}
Connect(target, _currentDraggingSocket);
}
_currentDraggingSocket = null;
drawer.CancelDrag();
}
public void ProducingStartAndProducingCompleteCanBeCalledAfterConnectionClose()
{
var mockLibuv = new MockLibuv();
using (var memory = new MemoryPool())
using (var kestrelEngine = new KestrelEngine(mockLibuv, new TestServiceContext()))
{
kestrelEngine.Start(count: 1);
var kestrelThread = kestrelEngine.Threads[0];
var socket = new MockSocket(mockLibuv, kestrelThread.Loop.ThreadId, new TestKestrelTrace());
var trace = new KestrelTrace(new TestKestrelTrace());
var ltp = new LoggingThreadPool(trace);
var connection = new MockConnection();
var socketOutput = new SocketOutput(kestrelThread, socket, memory, connection, "0", trace, ltp, new Queue <UvWriteReq>());
// Close SocketOutput
var cleanupTask = socketOutput.WriteAsync(
default(ArraySegment <byte>), default(CancellationToken), socketDisconnect: true);
Assert.True(connection.SocketClosed.Wait(1000));
var start = socketOutput.ProducingStart();
Assert.True(start.IsDefault);
// ProducingComplete should not throw given a default iterator
socketOutput.ProducingComplete(start);
}
}
private void OnOutputSocketClicked(SocketOutput output, PointerEventData eventData)
{
if (eventData.button == PointerEventData.InputButton.Right)
{
connections.Where(conn => conn.output == output)
.ToList()
.ForEach(conn => Disconnect(conn));
}
}
public void OnlyAllowsUpToThreeConcurrentWrites()
{
var writeWh = new ManualResetEventSlim();
var completeQueue = new Queue <Action <int> >();
var mockLibuv = new MockLibuv
{
OnWrite = (socket, buffers, triggerCompleted) =>
{
writeWh.Set();
completeQueue.Enqueue(triggerCompleted);
return(0);
}
};
using (var memory = new MemoryPool())
using (var kestrelEngine = new KestrelEngine(mockLibuv, new TestServiceContext()))
{
kestrelEngine.Start(count: 1);
var kestrelThread = kestrelEngine.Threads[0];
var socket = new MockSocket(mockLibuv, kestrelThread.Loop.ThreadId, new TestKestrelTrace());
var trace = new KestrelTrace(new TestKestrelTrace());
var ltp = new LoggingThreadPool(trace);
var socketOutput = new SocketOutput(kestrelThread, socket, memory, new MockConnection(), "0", trace, ltp, new Queue <UvWriteReq>());
var buffer = new ArraySegment <byte>(new byte[1]);
// First three writes trigger uv_write
socketOutput.WriteAsync(buffer, CancellationToken.None);
Assert.True(writeWh.Wait(1000));
writeWh.Reset();
socketOutput.WriteAsync(buffer, CancellationToken.None);
Assert.True(writeWh.Wait(1000));
writeWh.Reset();
socketOutput.WriteAsync(buffer, CancellationToken.None);
Assert.True(writeWh.Wait(1000));
writeWh.Reset();
// The fourth write won't trigger uv_write since the first three haven't completed
socketOutput.WriteAsync(buffer, CancellationToken.None);
Assert.False(writeWh.Wait(1000));
// Complete 1st write allowing uv_write to be triggered again
completeQueue.Dequeue()(0);
Assert.True(writeWh.Wait(1000));
// Cleanup
var cleanupTask = socketOutput.WriteAsync(
default(ArraySegment <byte>), default(CancellationToken), socketDisconnect: true);
foreach (var triggerCompleted in completeQueue)
{
triggerCompleted(0);
}
}
}
public void WritesAreAggregated()
{
var writeWh = new ManualResetEventSlim();
var writeCount = 0;
var mockLibuv = new MockLibuv
{
OnWrite = (socket, buffers, triggerCompleted) =>
{
writeCount++;
triggerCompleted(0);
writeWh.Set();
return(0);
}
};
using (var memory = new MemoryPool())
using (var kestrelEngine = new KestrelEngine(mockLibuv, new TestServiceContext()))
{
kestrelEngine.Start(count: 1);
var kestrelThread = kestrelEngine.Threads[0];
var socket = new MockSocket(mockLibuv, kestrelThread.Loop.ThreadId, new TestKestrelTrace());
var trace = new KestrelTrace(new TestKestrelTrace());
var ltp = new LoggingThreadPool(trace);
var socketOutput = new SocketOutput(kestrelThread, socket, memory, new MockConnection(), "0", trace, ltp, new Queue <UvWriteReq>());
var blockThreadWh = new ManualResetEventSlim();
kestrelThread.Post(_ =>
{
blockThreadWh.Wait();
}, state: null);
var buffer = new ArraySegment <byte>(new byte[1]);
// Two calls to WriteAsync trigger uv_write once if both calls
// are made before write is scheduled
socketOutput.WriteAsync(buffer, CancellationToken.None);
socketOutput.WriteAsync(buffer, CancellationToken.None);
blockThreadWh.Set();
Assert.True(writeWh.Wait(1000));
writeWh.Reset();
// Write isn't called twice after the thread is unblocked
Assert.False(writeWh.Wait(1000));
Assert.Equal(1, writeCount);
// One call to ScheduleWrite + One call to Post to block the thread
Assert.Equal(2, mockLibuv.PostCount);
// Cleanup
var cleanupTask = socketOutput.WriteAsync(
default(ArraySegment <byte>), default(CancellationToken), socketDisconnect: true);
}
}
private static void Main(string[] args)
{
var server = new SocketOutput();
server.SetupServer();
server.SetupAdminServer();
Console.ReadLine();
server.CloseConnection();
Console.ReadKey();
}
public void WritesDontCompleteImmediatelyWhenTooManyBytesAreAlreadyPreCompleted()
{
// This should match _maxBytesPreCompleted in SocketOutput
var maxBytesPreCompleted = 65536;
var completeQueue = new Queue <Action <int> >();
// Arrange
var mockLibuv = new MockLibuv
{
OnWrite = (socket, buffers, triggerCompleted) =>
{
completeQueue.Enqueue(triggerCompleted);
return(0);
}
};
using (var kestrelEngine = new KestrelEngine(mockLibuv, new TestServiceContext()))
using (var memory = new MemoryPool2())
{
kestrelEngine.Start(count: 1);
var kestrelThread = kestrelEngine.Threads[0];
var socket = new MockSocket(kestrelThread.Loop.ThreadId, new TestKestrelTrace());
var trace = new KestrelTrace(new TestKestrelTrace());
var ltp = new LoggingThreadPool(trace);
var socketOutput = new SocketOutput(kestrelThread, socket, memory, null, 0, trace, ltp, new Queue <UvWriteReq>());
var bufferSize = maxBytesPreCompleted;
var buffer = new ArraySegment <byte>(new byte[bufferSize], 0, bufferSize);
var completedWh = new ManualResetEventSlim();
Action <Task> onCompleted = (Task t) =>
{
Assert.Null(t.Exception);
completedWh.Set();
};
// Act
socketOutput.WriteAsync(buffer).ContinueWith(onCompleted);
// Assert
// The first write should pre-complete since it is <= _maxBytesPreCompleted.
Assert.True(completedWh.Wait(1000));
// Arrange
completedWh.Reset();
// Act
socketOutput.WriteAsync(buffer).ContinueWith(onCompleted);
// Assert
// Too many bytes are already pre-completed for the second write to pre-complete.
Assert.False(completedWh.Wait(1000));
// Act
completeQueue.Dequeue()(0);
// Assert
// Finishing the first write should allow the second write to pre-complete.
Assert.True(completedWh.Wait(1000));
}
}
/// <summary>
/// Writes some data to the connection.
/// </summary>
public void Write(ArraySegment <byte> data)
{
// Update the expires timer
this.Expires = Timer.Now + Timeout;
// Increment the counters
NetStat.BytesOutgoing.Add(data.Count);
// Write through the socket
SocketOutput.Write(data);
}
/// <summary>
/// Writes some data to the connection.
/// </summary>
public Task WriteAsync(ArraySegment <byte> data, CancellationToken cancellationToken)
{
// Update the expires timer
this.Expires = Timer.Now + Timeout;
// Increment the counters
NetStat.BytesOutgoing.Add(data.Count);
// Write through the socket
return(SocketOutput.WriteAsync(data, cancellationToken: cancellationToken));
}
/// <summary>
/// Creates a new connection from the listener context.
/// </summary>
/// <param name="context">The listener context to use.</param>
/// <param name="socket">The socket handle.</param>
internal Connection(ListenerContext context, UvStreamHandle socket) : base(context)
{
_socket = socket;
socket.Connection = this;
ConnectionId = ConnectionId.NewConnectionId();
_rawSocketInput = new SocketInput(Memory, ThreadPool);
_rawSocketOutput = new SocketOutput(Thread, _socket, Memory, this, ConnectionId, ThreadPool, WriteReqPool);
this.Expires = Timer.Now + TimeSpan.FromMinutes(1);
this.ConnectionManager.Register(this);
}
public void Post(Action <SocketOutput> callback, SocketOutput state)
{
lock (_workSync)
{
_workAdding.Enqueue(new Work
{
CallbackAdapter = _socketCallbackAdapter,
Callback = callback,
State = state
});
}
_post.Send();
}
public void ProducingStartAndProducingCompleteCanBeUsedDirectly()
{
int nBuffers = 0;
var nBufferWh = new ManualResetEventSlim();
var mockLibuv = new MockLibuv
{
OnWrite = (socket, buffers, triggerCompleted) =>
{
nBuffers = buffers;
nBufferWh.Set();
triggerCompleted(0);
return(0);
}
};
using (var memory = new MemoryPool())
using (var kestrelEngine = new KestrelEngine(mockLibuv, new TestServiceContext()))
{
kestrelEngine.Start(count: 1);
var kestrelThread = kestrelEngine.Threads[0];
var socket = new MockSocket(mockLibuv, kestrelThread.Loop.ThreadId, new TestKestrelTrace());
var trace = new KestrelTrace(new TestKestrelTrace());
var ltp = new LoggingThreadPool(trace);
var socketOutput = new SocketOutput(kestrelThread, socket, memory, new MockConnection(), "0", trace, ltp, new Queue <UvWriteReq>());
// block 1
var start = socketOutput.ProducingStart();
start.Block.End = start.Block.Data.Offset + start.Block.Data.Count;
// block 2
var block2 = memory.Lease();
block2.End = block2.Data.Offset + block2.Data.Count;
start.Block.Next = block2;
var end = new MemoryPoolIterator(block2, block2.End);
socketOutput.ProducingComplete(end);
// A call to Write is required to ensure a write is scheduled
socketOutput.WriteAsync(default(ArraySegment <byte>), default(CancellationToken));
Assert.True(nBufferWh.Wait(1000));
Assert.Equal(2, nBuffers);
// Cleanup
var cleanupTask = socketOutput.WriteAsync(
default(ArraySegment <byte>), default(CancellationToken), socketDisconnect: true);
}
}
public void CanWrite1MB()
{
// This test was added because when initially implementing write-behind buffering in
// SocketOutput, the write callback would never be invoked for writes larger than
// _maxBytesPreCompleted even after the write actually completed.
// Arrange
var mockLibuv = new MockLibuv
{
OnWrite = (socket, buffers, triggerCompleted) =>
{
triggerCompleted(0);
return(0);
}
};
using (var memory = new MemoryPool())
using (var kestrelEngine = new KestrelEngine(mockLibuv, new TestServiceContext()))
{
kestrelEngine.Start(count: 1);
var kestrelThread = kestrelEngine.Threads[0];
var socket = new MockSocket(mockLibuv, kestrelThread.Loop.ThreadId, new TestKestrelTrace());
var trace = new KestrelTrace(new TestKestrelTrace());
var ltp = new LoggingThreadPool(trace);
var socketOutput = new SocketOutput(kestrelThread, socket, memory, new MockConnection(), "0", trace, ltp, new Queue <UvWriteReq>());
// I doubt _maxBytesPreCompleted will ever be over a MB. If it is, we should change this test.
var bufferSize = 1048576;
var buffer = new ArraySegment <byte>(new byte[bufferSize], 0, bufferSize);
var completedWh = new ManualResetEventSlim();
// Act
socketOutput.WriteAsync(buffer, default(CancellationToken)).ContinueWith(
(t) =>
{
Assert.Null(t.Exception);
completedWh.Set();
}
);
// Assert
Assert.True(completedWh.Wait(1000));
// Cleanup
var cleanupTask = socketOutput.WriteAsync(
default(ArraySegment <byte>), default(CancellationToken), socketDisconnect: true);
}
}
private void OnOutputDragStarted(SocketOutput socketOnDrag)
{
_currentDraggingSocket = socketOnDrag;
drawer.StartDrag(_currentDraggingSocket);
// check socket connection type
if (_currentDraggingSocket.HasConnection())
{
// if single, disconnect
if (_currentDraggingSocket.connectionType == ConnectionType.Single)
{
Disconnect(_currentDraggingSocket.connection);
}
}
}
//public static readonly Logger.Logger Logger = new Logger.Logger(Output.Output.Socket);
private static void Main(string[] args)
{
//Logger.Log(LogLevel.Info, "TEST 1");
//Logger.Log(LogLevel.Error, "TEST 1");
//Logger.Log(LogLevel.Alert, "TEST 1");
//Logger.Log(LogLevel.Debug, "");
var server = new SocketOutput();
server.SetupServer();
server.SetupAdminServer();
Console.ReadLine();
server.CloseConnection();
Console.ReadKey();
}
public void Connect(SocketInput input, SocketOutput output)
{
var connection = new Connection()
{
id = CreateId,
input = input,
output = output
};
input.Connect(connection);
output.Connect(connection);
connections.Add(connection);
input.parentNode.OnConnection(input, output);
drawer.Add(connection.id, output.handle, input.handle);
}
public void CanWrite1MB()
{
// This test was added because when initially implementing write-behind buffering in
// SocketOutput, the write callback would never be invoked for writes larger than
// _maxBytesPreCompleted even after the write actually completed.
// Arrange
var mockLibuv = new MockLibuv
{
OnWrite = (socket, buffers, triggerCompleted) =>
{
triggerCompleted(0);
return(0);
}
};
using (var kestrelEngine = new KestrelEngine(mockLibuv, new TestServiceContext()))
{
kestrelEngine.Start(count: 1);
var kestrelThread = kestrelEngine.Threads[0];
var socket = new MockSocket(kestrelThread.Loop.ThreadId, new TestKestrelTrace());
var trace = new KestrelTrace(new TestKestrelTrace());
var socketOutput = new SocketOutput(kestrelThread, socket, 0, trace);
// I doubt _maxBytesPreCompleted will ever be over a MB. If it is, we should change this test.
var bufferSize = 1048576;
var buffer = new ArraySegment <byte>(new byte[bufferSize], 0, bufferSize);
var completedWh = new ManualResetEventSlim();
Action <Exception, object, bool> onCompleted = (ex, state, calledInline) =>
{
Assert.Null(ex);
Assert.Null(state);
completedWh.Set();
};
// Act
socketOutput.Write(buffer, onCompleted, null);
// Assert
Assert.True(completedWh.Wait(1000));
}
}
public async Task FailedWriteCompletesOrCancelsAllPendingTasks()
{
// This should match _maxBytesPreCompleted in SocketOutput
var maxBytesPreCompleted = 65536;
var completeQueue = new Queue <Action <int> >();
// Arrange
var mockLibuv = new MockLibuv
{
OnWrite = (socket, buffers, triggerCompleted) =>
{
completeQueue.Enqueue(triggerCompleted);
return(0);
}
};
using (var memory = new MemoryPool())
using (var kestrelEngine = new KestrelEngine(mockLibuv, new TestServiceContext()))
{
kestrelEngine.Start(count: 1);
var kestrelThread = kestrelEngine.Threads[0];
var socket = new MockSocket(mockLibuv, kestrelThread.Loop.ThreadId, new TestKestrelTrace());
var trace = new KestrelTrace(new TestKestrelTrace());
var ltp = new LoggingThreadPool(trace);
using (var mockConnection = new MockConnection())
{
var abortedSource = mockConnection.RequestAbortedSource;
ISocketOutput socketOutput = new SocketOutput(kestrelThread, socket, memory, mockConnection, "0", trace, ltp, new Queue <UvWriteReq>());
var bufferSize = maxBytesPreCompleted;
var data = new byte[bufferSize];
var fullBuffer = new ArraySegment <byte>(data, 0, bufferSize);
// Act
var task1Success = socketOutput.WriteAsync(fullBuffer, cancellationToken: abortedSource.Token);
// task1 should complete successfully as < _maxBytesPreCompleted
// First task is completed and successful
Assert.True(task1Success.IsCompleted);
Assert.False(task1Success.IsCanceled);
Assert.False(task1Success.IsFaulted);
// following tasks should wait.
var task2Success = socketOutput.WriteAsync(fullBuffer, cancellationToken: default(CancellationToken));
var task3Canceled = socketOutput.WriteAsync(fullBuffer, cancellationToken: abortedSource.Token);
// Give time for tasks to percolate
await Task.Delay(1000);
// Second task is not completed
Assert.False(task2Success.IsCompleted);
Assert.False(task2Success.IsCanceled);
Assert.False(task2Success.IsFaulted);
// Third task is not completed
Assert.False(task3Canceled.IsCompleted);
Assert.False(task3Canceled.IsCanceled);
Assert.False(task3Canceled.IsFaulted);
// Cause the first write to fail.
completeQueue.Dequeue()(-1);
// Second task is now completed
await task2Success;
// Third task is now canceled
await Assert.ThrowsAsync <TaskCanceledException>(() => task3Canceled);
Assert.True(task3Canceled.IsCanceled);
// Cleanup
var cleanupTask = ((SocketOutput)socketOutput).WriteAsync(
default(ArraySegment <byte>), default(CancellationToken), socketDisconnect: true);
foreach (var triggerCompleted in completeQueue)
{
triggerCompleted(0);
}
}
}
}
public static void InvokeOutputSocketClick(SocketOutput output, PointerEventData eventData)
{
OutputSocketClickEvent?.Invoke(output, eventData);
}
/// <summary>
/// Flushes the connection.
/// </summary>
public async Task FlushAsync(CancellationToken cancellationToken)
{
await SocketOutput.WriteAsync(EmptyBuffer, cancellationToken : cancellationToken);
}
/// <summary>
/// Flushes the connection.
/// </summary>
public void Flush()
{
SocketOutput.Write(EmptyBuffer);
}
public async Task OnlyWritesRequestingCancellationAreErroredOnCancellation()
{
// This should match _maxBytesPreCompleted in SocketOutput
var maxBytesPreCompleted = 65536;
var completeQueue = new Queue <Action <int> >();
// Arrange
var mockLibuv = new MockLibuv
{
OnWrite = (socket, buffers, triggerCompleted) =>
{
completeQueue.Enqueue(triggerCompleted);
return(0);
}
};
using (var memory = new MemoryPool())
using (var kestrelEngine = new KestrelEngine(mockLibuv, new TestServiceContext()))
{
kestrelEngine.Start(count: 1);
var kestrelThread = kestrelEngine.Threads[0];
var socket = new MockSocket(mockLibuv, kestrelThread.Loop.ThreadId, new TestKestrelTrace());
var trace = new KestrelTrace(new TestKestrelTrace());
var ltp = new LoggingThreadPool(trace);
using (var mockConnection = new MockConnection())
{
ISocketOutput socketOutput = new SocketOutput(kestrelThread, socket, memory, mockConnection, "0", trace, ltp, new Queue <UvWriteReq>());
var bufferSize = maxBytesPreCompleted;
var data = new byte[bufferSize];
var fullBuffer = new ArraySegment <byte>(data, 0, bufferSize);
var cts = new CancellationTokenSource();
// Act
var task1Success = socketOutput.WriteAsync(fullBuffer, cancellationToken: cts.Token);
// task1 should complete successfully as < _maxBytesPreCompleted
// First task is completed and successful
Assert.True(task1Success.IsCompleted);
Assert.False(task1Success.IsCanceled);
Assert.False(task1Success.IsFaulted);
// following tasks should wait.
var task2Throw = socketOutput.WriteAsync(fullBuffer, cancellationToken: cts.Token);
var task3Success = socketOutput.WriteAsync(fullBuffer, cancellationToken: default(CancellationToken));
// Give time for tasks to percolate
await Task.Delay(1000);
// Second task is not completed
Assert.False(task2Throw.IsCompleted);
Assert.False(task2Throw.IsCanceled);
Assert.False(task2Throw.IsFaulted);
// Third task is not completed
Assert.False(task3Success.IsCompleted);
Assert.False(task3Success.IsCanceled);
Assert.False(task3Success.IsFaulted);
cts.Cancel();
// Second task is now canceled
await Assert.ThrowsAsync <TaskCanceledException>(() => task2Throw);
Assert.True(task2Throw.IsCanceled);
// Third task is now completed
await task3Success;
// Fourth task immediately cancels as the token is canceled
var task4Throw = socketOutput.WriteAsync(fullBuffer, cancellationToken: cts.Token);
Assert.True(task4Throw.IsCompleted);
Assert.True(task4Throw.IsCanceled);
Assert.False(task4Throw.IsFaulted);
var task5Success = socketOutput.WriteAsync(fullBuffer, cancellationToken: default(CancellationToken));
// task5 should complete immediately
Assert.True(task5Success.IsCompleted);
Assert.False(task5Success.IsCanceled);
Assert.False(task5Success.IsFaulted);
cts = new CancellationTokenSource();
var task6Success = socketOutput.WriteAsync(fullBuffer, cancellationToken: cts.Token);
// task6 should complete immediately but not cancel as its cancellation token isn't set
Assert.True(task6Success.IsCompleted);
Assert.False(task6Success.IsCanceled);
Assert.False(task6Success.IsFaulted);
Assert.True(true);
// Cleanup
var cleanupTask = ((SocketOutput)socketOutput).WriteAsync(
default(ArraySegment <byte>), default(CancellationToken), socketDisconnect: true);
foreach (var triggerCompleted in completeQueue)
{
triggerCompleted(0);
}
}
}
}
public void WritesDontCompleteImmediatelyWhenTooManyBytesIncludingNonImmediateAreAlreadyPreCompleted()
{
// This should match _maxBytesPreCompleted in SocketOutput
var maxBytesPreCompleted = 65536;
var completeQueue = new Queue <Action <int> >();
var writeRequestedWh = new ManualResetEventSlim();
// Arrange
var mockLibuv = new MockLibuv
{
OnWrite = (socket, buffers, triggerCompleted) =>
{
completeQueue.Enqueue(triggerCompleted);
writeRequestedWh.Set();
return(0);
}
};
using (var memory = new MemoryPool())
using (var kestrelEngine = new KestrelEngine(mockLibuv, new TestServiceContext()))
{
kestrelEngine.Start(count: 1);
var kestrelThread = kestrelEngine.Threads[0];
var socket = new MockSocket(mockLibuv, kestrelThread.Loop.ThreadId, new TestKestrelTrace());
var trace = new KestrelTrace(new TestKestrelTrace());
var ltp = new LoggingThreadPool(trace);
var socketOutput = new SocketOutput(kestrelThread, socket, memory, new MockConnection(), "0", trace, ltp, new Queue <UvWriteReq>());
var bufferSize = maxBytesPreCompleted / 2;
var data = new byte[bufferSize];
var halfWriteBehindBuffer = new ArraySegment <byte>(data, 0, bufferSize);
// Act
var writeTask1 = socketOutput.WriteAsync(halfWriteBehindBuffer, default(CancellationToken));
// Assert
// The first write should pre-complete since it is <= _maxBytesPreCompleted.
Assert.Equal(TaskStatus.RanToCompletion, writeTask1.Status);
Assert.True(writeRequestedWh.Wait(1000));
writeRequestedWh.Reset();
// Add more bytes to the write-behind buffer to prevent the next write from
var iter = socketOutput.ProducingStart();
iter.CopyFrom(halfWriteBehindBuffer);
socketOutput.ProducingComplete(iter);
// Act
var writeTask2 = socketOutput.WriteAsync(halfWriteBehindBuffer, default(CancellationToken));
// Assert
// Too many bytes are already pre-completed for the fourth write to pre-complete.
Assert.True(writeRequestedWh.Wait(1000));
Assert.False(writeTask2.IsCompleted);
// 2 calls have been made to uv_write
Assert.Equal(2, completeQueue.Count);
// Act
completeQueue.Dequeue()(0);
// Assert
// Finishing the first write should allow the second write to pre-complete.
Assert.True(writeTask2.Wait(1000));
// Cleanup
var cleanupTask = socketOutput.WriteAsync(
default(ArraySegment <byte>), default(CancellationToken), socketDisconnect: true);
foreach (var triggerCompleted in completeQueue)
{
triggerCompleted(0);
}
}
}
public static void InvokeSocketDragFrom(SocketOutput output)
{
OutputSocketDragStartEvent?.Invoke(output);
}
public void WritesDontGetCompletedTooQuickly()
{
// This should match _maxBytesPreCompleted in SocketOutput
var maxBytesPreCompleted = 65536;
var completeQueue = new Queue <Action <int> >();
var onWriteWh = new ManualResetEventSlim();
// Arrange
var mockLibuv = new MockLibuv
{
OnWrite = (socket, buffers, triggerCompleted) =>
{
completeQueue.Enqueue(triggerCompleted);
onWriteWh.Set();
return(0);
}
};
using (var memory = new MemoryPool())
using (var kestrelEngine = new KestrelEngine(mockLibuv, new TestServiceContext()))
{
kestrelEngine.Start(count: 1);
var kestrelThread = kestrelEngine.Threads[0];
var socket = new MockSocket(mockLibuv, kestrelThread.Loop.ThreadId, new TestKestrelTrace());
var trace = new KestrelTrace(new TestKestrelTrace());
var ltp = new LoggingThreadPool(trace);
var socketOutput = new SocketOutput(kestrelThread, socket, memory, new MockConnection(), "0", trace, ltp, new Queue <UvWriteReq>());
var bufferSize = maxBytesPreCompleted;
var buffer = new ArraySegment <byte>(new byte[bufferSize], 0, bufferSize);
var completedWh = new ManualResetEventSlim();
Action <Task> onCompleted = (Task t) =>
{
Assert.Null(t.Exception);
completedWh.Set();
};
var completedWh2 = new ManualResetEventSlim();
Action <Task> onCompleted2 = (Task t) =>
{
Assert.Null(t.Exception);
completedWh2.Set();
};
// Act (Pre-complete the maximum number of bytes in preparation for the rest of the test)
socketOutput.WriteAsync(buffer, default(CancellationToken)).ContinueWith(onCompleted);
// Assert
// The first write should pre-complete since it is <= _maxBytesPreCompleted.
Assert.True(completedWh.Wait(1000));
Assert.True(onWriteWh.Wait(1000));
// Arrange
completedWh.Reset();
onWriteWh.Reset();
// Act
socketOutput.WriteAsync(buffer, default(CancellationToken)).ContinueWith(onCompleted);
socketOutput.WriteAsync(buffer, default(CancellationToken)).ContinueWith(onCompleted2);
Assert.True(onWriteWh.Wait(1000));
completeQueue.Dequeue()(0);
// Assert
// Too many bytes are already pre-completed for the third but not the second write to pre-complete.
// https://github.com/aspnet/KestrelHttpServer/issues/356
Assert.True(completedWh.Wait(1000));
Assert.False(completedWh2.Wait(1000));
// Act
completeQueue.Dequeue()(0);
// Assert
// Finishing the first write should allow the second write to pre-complete.
Assert.True(completedWh2.Wait(1000));
// Cleanup
var cleanupTask = ((SocketOutput)socketOutput).WriteAsync(
default(ArraySegment <byte>), default(CancellationToken), socketDisconnect: true);
foreach (var triggerCompleted in completeQueue)
{
triggerCompleted(0);
}
}
}
