private Task BlockUntilCompletedImpl(Func <Task> func)
{
if (UIThreadHelper.Instance.Thread != Thread.CurrentThread)
{
try {
var task = func();
task.GetAwaiter().GetResult();
return(task);
} catch (OperationCanceledException ex) {
return(TaskUtilities.CreateCanceled(ex));
} catch (Exception ex) {
return(Task.FromException(ex));
}
}
var sc = SynchronizationContext.Current;
var blockingLoopSynchronizationContext = new BlockingLoopSynchronizationContext(UIThreadHelper.Instance, sc);
SynchronizationContext.SetSynchronizationContext(blockingLoopSynchronizationContext);
var bl = new BlockingLoop(func, sc);
try {
_blockingLoop.Value = bl;
bl.Start();
} finally {
_blockingLoop.Value = null;
SynchronizationContext.SetSynchronizationContext(sc);
}
return(bl.Task);
}
public async Task CreateCanceled()
{
var exception = new CustomOperationCanceledException();
var task = TaskUtilities.CreateCanceled <int>(exception);
task.Status.Should().Be(TaskStatus.Canceled);
task.IsCanceled.Should().Be(true);
Func <Task <int> > f = async() => await task;
await f.ShouldThrowAsync <CustomOperationCanceledException>();
}
public RSession(int id, IRHostBrokerConnector brokerConnector, Action onDispose)
{
Id = id;
BrokerConnector = brokerConnector;
_onDispose = onDispose;
_disposeToken = DisposeToken.Create <RSession>();
_disableMutatingOnReadConsole = new CountdownDisposable(() => {
if (!_delayedMutatedOnReadConsole)
{
return;
}
_delayedMutatedOnReadConsole = false;
Task.Run(() => Mutated?.Invoke(this, EventArgs.Empty));
});
_afterHostStartedTask = TaskUtilities.CreateCanceled(new RHostDisconnectedException());
}
public RSession(int id, IBrokerClient brokerClient, Action onDispose)
{
Id = id;
BrokerClient = brokerClient;
_onDispose = onDispose;
_disposeToken = DisposeToken.Create <RSession>();
_disableMutatingOnReadConsole = new CountdownDisposable(() => {
if (!_delayedMutatedOnReadConsole)
{
return;
}
_delayedMutatedOnReadConsole = false;
Task.Run(() => Mutated?.Invoke(this, EventArgs.Empty));
});
_initializationLock = new BinaryAsyncLock();
_initializationTcs = new TaskCompletionSourceEx <object>();
_afterHostStartedTask = TaskUtilities.CreateCanceled(new RHostDisconnectedException());
}
static RSession()
{
CanceledBeginInteractionTask = TaskUtilities.CreateCanceled <IRSessionInteraction>(new RHostDisconnectedException());
}
