public void TaskCancellationManager_CancelledAfterCompleted()
{
var mgr = new TaskCancellationManager<int>();
mgr.Add(42, _ => Task.CompletedTask);
mgr.Cancel(42);
// Not throwing implies success
}
public void TaskCancellationManager_CancelInvalidId()
{
var mgr = new TaskCancellationManager <int>();
mgr.Cancel(42);
// Not throwing implies success
}
public async Task TaskCancellationManager_CancelledAfterCompleted()
{
var mgr = new TaskCancellationManager <int>();
await mgr.Add(42, _ => Task.CompletedTask);
mgr.Cancel(42);
// Not throwing implies success
}
public void TaskCancellationManager_CancelledAfterCompleted()
{
var mgr = new TaskCancellationManager <int>();
mgr.Add(42, _ => Task.FromResult(true));
mgr.Cancel(42);
// Not throwing implies success
}
public async Task TryCancelExportAsync()
{
try
{
_cancellationManager.Cancel();
await _cancellationManager.WaitForAllToCancelAsync();
}
catch (Exception ex)
{
Logger.LogErrorEverywhere("Ошибка отмены экспорта", ex);
}
}
public async Task TaskCancellationManager_CancelledAfterCompleted()
{
var mgr = new TaskCancellationManager <int>();
var task = new Task(() => { });
task.Start();
await mgr.AddAndInvokeAsync(42, _ => task);
mgr.Cancel(42);
// Not throwing implies success
}
public void TaskCancellationManager_CancelTask()
{
var enter = new AutoResetEvent(false);
var exit = new AutoResetEvent(false);
var mgr = new TaskCancellationManager<int>();
mgr.Add(42, async token =>
{
var tcs = new TaskCompletionSource<bool>();
using (token.Register(() => tcs.SetResult(true)))
{
enter.Set();
await tcs.Task;
exit.Set();
}
});
Assert.IsTrue(enter.WaitOne());
mgr.Cancel(42);
Assert.IsTrue(exit.WaitOne());
}
/// <summary>
/// Initiates the network fetch and informs the producer when a
/// response is received via the provided callback.
/// </summary>
/// <param name="fetchState">
/// The fetch-specific state.
/// </param>
/// <param name="callback">
/// The callback used to inform the network fetch producer.
/// </param>
public override void Fetch(
FetchState fetchState,
INetworkFetcherCallback callback)
{
_tasks.Add(fetchState.Id, token => FetchASync(fetchState, callback, token));
fetchState.Context.AddCallbacks(
new BaseProducerContextCallbacks(
() =>
{
bool isCanceled = _tasks.Cancel(fetchState.Id);
if (isCanceled)
{
callback.OnCancellation();
}
},
() => { },
() => { },
() => { }));
}
public async Task TaskCancellationManager_CancelTask()
{
var enter = new AutoResetEvent(false);
var exit = new AutoResetEvent(false);
var mgr = new TaskCancellationManager <int>();
var t = mgr.Add(42, async token =>
{
var tcs = new TaskCompletionSource <bool>();
using (token.Register(() => tcs.SetResult(true)))
{
enter.Set();
await tcs.Task;
exit.Set();
}
});
Assert.IsTrue(enter.WaitOne());
mgr.Cancel(42);
Assert.IsTrue(exit.WaitOne());
await t;
}
public void abortRequest(int requestId)
{
_prefetchRequests.Cancel(requestId);
}
public void stopDownload(int jobId)
{
_tasks.Cancel(jobId);
}