本文整理汇总了C#中TransformBlock.TryReceive方法的典型用法代码示例。如果您正苦于以下问题：C# TransformBlock.TryReceive方法的具体用法？C# TransformBlock.TryReceive怎么用？C# TransformBlock.TryReceive使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类TransformBlock的用法示例。
在下文中一共展示了TransformBlock.TryReceive方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: TestCount
[OuterLoop] // spins waiting for a condition to be true, though it should happen very quickly
public async Task TestCount()
{
var tb = new TransformBlock<int, int>(i => i);
Assert.Equal(expected: 0, actual: tb.InputCount);
Assert.Equal(expected: 0, actual: tb.OutputCount);
tb.PostRange(1, 11);
await Task.Run(() => SpinWait.SpinUntil(() => tb.OutputCount == 10));
for (int i = 10; i > 0; i--)
{
int item;
Assert.True(tb.TryReceive(out item));
Assert.Equal(expected: 11 - i, actual: item);
Assert.Equal(expected: i - 1, actual: tb.OutputCount);
}
}示例2: TestPrecanceled
public async Task TestPrecanceled()
{
var bb = new TransformBlock<int, int>(i => i,
new ExecutionDataflowBlockOptions { CancellationToken = new CancellationToken(canceled: true) });
int ignoredValue;
IList<int> ignoredValues;
IDisposable link = bb.LinkTo(DataflowBlock.NullTarget<int>());
Assert.NotNull(link);
link.Dispose();
Assert.False(bb.Post(42));
var t = bb.SendAsync(42);
Assert.True(t.IsCompleted);
Assert.False(t.Result);
Assert.False(bb.TryReceiveAll(out ignoredValues));
Assert.False(bb.TryReceive(out ignoredValue));
Assert.NotNull(bb.Completion);
await Assert.ThrowsAnyAsync<OperationCanceledException>(() => bb.Completion);
bb.Complete(); // just make sure it doesn't throw
}示例3: RunTransformBlockConformanceTests
//.........这里部分代码省略.........
{
bool localPassed = true;
var t = new TransformBlock<int, int>(i =>
{
if ((i % 2) == 0) throw new OperationCanceledException();
return i;
});
for (int i = 0; i < 2; i++) t.Post(i);
t.Complete();
for (int i = 0; i < 2; i++)
{
if ((i % 2) != 0) localPassed &= t.Receive() == i;
}
t.Completion.Wait();
Console.WriteLine("{0}: OperationCanceledExceptions are ignored", localPassed ? "Success" : "Failure");
passed &= localPassed;
}
// Test using a precanceled token
{
bool localPassed = true;
try
{
var cts = new CancellationTokenSource();
cts.Cancel();
var dbo = new ExecutionDataflowBlockOptions { CancellationToken = cts.Token };
var t = new TransformBlock<int, int>(i => i, dbo);
int ignoredValue;
IList<int> ignoredValues;
localPassed &= t.LinkTo(new ActionBlock<int>(delegate { })) != null;
localPassed &= t.SendAsync(42).Result == false;
localPassed &= t.TryReceiveAll(out ignoredValues) == false;
localPassed &= t.Post(42) == false;
localPassed &= t.OutputCount == 0;
localPassed &= t.TryReceive(out ignoredValue) == false;
localPassed &= t.Completion != null;
t.Complete();
}
catch (Exception)
{
localPassed = false;
}
Console.WriteLine(" {0}: Precanceled tokens work correctly", localPassed ? "Success" : "Failure");
passed &= localPassed;
}
// Test faulting
{
bool localPassed = true;
var t = new TransformBlock<int, int>(new Func<int, int>(i => { throw new InvalidOperationException(); }));
t.Post(42);
t.Post(1);
t.Post(2);
t.Post(3);
try { t.Completion.Wait(); }
catch { }
localPassed &= t.Completion.IsFaulted;
localPassed &= SpinWait.SpinUntil(() => t.InputCount == 0, 500);
localPassed &= SpinWait.SpinUntil(() => t.OutputCount == 0, 500);
localPassed &= t.Post(4) == false;
Console.WriteLine(" {0}: Faulted handled correctly", localPassed ? "Success" : "Failure");
passed &= localPassed;
}
}