private static void TestTransformBlock()
{
//var transformBlock = new TransformBlock<int, double>(n => Math.Sqrt(n));
//transformBlock.Post(10);
//transformBlock.Post(20);
//transformBlock.Post(30);
//for (int i = 0; i < 3; i++)
//{
// Console.WriteLine(transformBlock.Receive());
//}
var tbUrl = new TransformBlock <string, string>((url) =>
{
WebClient webClient = new WebClient();
string res = webClient.DownloadString(new Uri(url));
return(res);
});
tbUrl.Post("https://www.cnblogs.com/haoxinyue/archive/2013/03/01/2938959.html");
tbUrl.Post("https://zhidao.baidu.com/question/570037232.html");
Console.WriteLine(tbUrl.Receive());
Console.WriteLine(tbUrl.Receive());
}
protected void RunParseTest_NoTags(string metric, Type expectedType)
{
_systemMetrics.Setup(p => p.LogCount("parser.linesSeen", 1)).Verifiable();
_block.Post(metric);
var message = _block.Receive();
Assert.IsInstanceOfType(message, expectedType);
Assert.AreEqual(metric, message.ToString());
_systemMetrics.VerifyAll();
}
public void ProcessedRawLine_GotValidRawMessageInstance()
{
_systemMetrics.Setup(p => p.LogCount("parser.LinesSeen", 1)).Verifiable();
var timestamp = DateTime.Now.Ticks;
var metric = "a.raw.metric:100|r|" + timestamp;
_block.Post(metric);
var message = _block.Receive();
Assert.AreEqual(metric, message.ToString());
_systemMetrics.VerifyAll();
}
public void ProcessedRawLine_GotValidRawMessageInstance()
{
_systemMetrics.When(p => p.LogCount("parser.LinesSeen", 1));
var timestamp = DateTime.Now.Ticks;
var metric = "a.raw.metric:100|r|" + timestamp;
_block.Post(metric);
var message = _block.Receive();
message.ToString().ShouldBe(metric);
_systemMetrics.ReceivedCalls();
}
public async Task DataflowExampleWithTry()
{
var inputBlock = new TransformBlock <int, Try <int> >(value => Try.Create(() =>
{
if (value % 3 == 0)
{
throw new InvalidOperationException($"Power of 3 found: {value}");
}
return(value);
}));
var outputBlock = new TransformBlock <Try <int>, Try <int> >(t => t.Map(async value =>
{
await Task.Yield();
if (value % 2 == 0)
{
throw new InvalidOperationException($"Power of 2 found: {value}");
}
return(value);
}));
inputBlock.LinkTo(outputBlock, new DataflowLinkOptions {
PropagateCompletion = true
});
inputBlock.Post(1); // comes through as a value
inputBlock.Post(2); // comes through as an exception
inputBlock.Post(3); // comes through as an exception
inputBlock.Post(5); // comes through as a value
inputBlock.Complete();
var result1 = outputBlock.Receive();
Assert.Equal(1, result1.Value);
var result2 = outputBlock.Receive();
Assert.True(result2.IsException);
var result2Exception = Assert.Throws <InvalidOperationException>(() => result2.Value);
Assert.Equal("Power of 2 found: 2", result2Exception.Message);
var result3 = outputBlock.Receive();
Assert.True(result3.IsException);
var result3Exception = Assert.Throws <InvalidOperationException>(() => result3.Value);
Assert.Equal("Power of 3 found: 3", result3Exception.Message);
var result5 = outputBlock.Receive();
Assert.Equal(5, result5.Value);
await outputBlock.Completion; // no faulted blocks
}
public static void Run()
{
Func <int, int> fn = n => { Thread.Sleep(1000);
return(n * n); };
var tfBlock = new TransformBlock <int, int>(fn);//pointer
//Here you generate data and add it
for (int i = 0; i < 10; i++)
{
//generate value, then post it in a transformation block
//and in a code behind you will get the result of calculations
//compiler does not run throw calculation code part directly
tfBlock.Post(i);
}
//Then here you try to receive it
for (int i = 0; i < 10; i++)
{
int result = tfBlock.Receive(); //To extract data here you need to receive it
Console.WriteLine(result); //Then you print it by one.
}
Console.WriteLine("Done");
//Notice that for this example “Done” is only printed after all the output values have been printed.
//This is because the Receive() method operates synchronously in the same thread as the for loops.
}
static void Main(string[] args)
{
var transformBlock = new TransformBlock <int, string>(i =>
{
Task.Delay(500).Wait();
return(i.ToString());
}, new ExecutionDataflowBlockOptions()
{
MaxDegreeOfParallelism = 2
});
for (int i = 0; i < 10; i++)
{
transformBlock.Post(i);
Console.WriteLine($"Number of messages in the input queue: {transformBlock.InputCount}");
}
for (int i = 0; i < 10; i++)
{
Console.WriteLine($"Number of messages in the input queue: {transformBlock.OutputCount}");
var result = transformBlock.Receive();
Console.WriteLine($"Recived: {result}");
}
Console.WriteLine("done");
Console.ReadKey();
}
public void TransformParallel()
{
var block = new TransformBlock <int, string>(a =>
{
Task.Delay(500).Wait();
return(a.ToString());
}, new ExecutionDataflowBlockOptions()
{
MaxDegreeOfParallelism = 10
});
for (int i = 0; i < 100; i++)
{
block.Post(i);
Console.WriteLine($"Transform input queue: {block.InputCount}");
}
for (int i = 0; i < 100; i++)
{
Console.WriteLine($"Transform output queue: {block.OutputCount}");
var result = block.Receive();
Console.WriteLine($"Received: {result}");
}
Console.WriteLine("Done!");
}
static void Main(string[] args)
{
var transformBlock = new TransformBlock <int, string>(n => {
Task.Delay(500).Wait();
return(n.ToString());
}, new ExecutionDataflowBlockOptions
{
MaxDegreeOfParallelism = 2,
SingleProducerConstrained = true // Assumes only a single producer
});
for (int i = 0; i < 10; i++)
{
transformBlock.Post(i);
Console.WriteLine($"Number of messages in the input queue {transformBlock.InputCount}");
}
for (int i = 0; i < 10; i++)
{
Console.Write($"Input {transformBlock.OutputCount}, Output {transformBlock.OutputCount}, received ");
var result = transformBlock.Receive();
Console.WriteLine(result);
}
Console.WriteLine("Finished!");
Console.ReadKey();
}
public IEnumerable <IMetaData> TransformManyBlockUsage(string stringToSplit)
{
Console.WriteLine($"Inside {nameof(TplDataflow1ExecutionBlocksController)} - {nameof(TransformManyBlockUsage)}");
// Create the members of the pipeline.
var transformManyBlockSplitAnInputStringIntoArray = new TransformManyBlock <string, string>(input =>
Functions.SplitAnInputStringIntoArray(input, SplitterSeparator)
);
var transformBlockCreateASingleMedatadataFromAString = new TransformBlock <string, IMetaData>(stringInput =>
Functions.CreateASingleMedatadataFromAString(stringInput)
);
// Connect the dataflow blocks to form a pipeline.
transformManyBlockSplitAnInputStringIntoArray.LinkTo(transformBlockCreateASingleMedatadataFromAString, DataflowOptions.LinkOptions);
// Start TransformManyBlockUsage pipeline with the input values.
transformManyBlockSplitAnInputStringIntoArray.Post(stringToSplit);
// Mark the head of the pipeline as complete.
transformManyBlockSplitAnInputStringIntoArray.Complete();
// Equivalent of transformManyBlockSplitAnInputStringIntoArray.OutputCount
var ouputCount = stringToSplit?.Split(SplitterSeparator, StringSplitOptions.RemoveEmptyEntries).Length ?? 0;
for (var i = 0; i < ouputCount; i++)
{
yield return(transformBlockCreateASingleMedatadataFromAString.Receive());
}
}
public override void Run()
{
/* Unbounded 表示块使用支持的最大并行数
* 块并行处理时，处理的数据顺序不一定与接收的顺序一致，但是输出时与接收的顺序一致
*/
TransformBlock <RunModel, string> transformBlock = new TransformBlock <RunModel, string>(
(model) =>
{
Helper.PrintLine($"开始处理 {model.Name}");
return($"I'm {model.Name}");
},
new ExecutionDataflowBlockOptions()
{
MaxDegreeOfParallelism = DataflowBlockOptions.Unbounded
});
var models = this.CreateCollection();
// TransformBlock 可以同时作为输入和输出
Array.ForEach(models, model => transformBlock.Post(model));
for (int index = 0; index < models.Length; index++)
{
Helper.PrintLine(transformBlock.Receive());
}
}
public void Run()
{
ConcurrentBag <int> values = new ConcurrentBag <int>();
var transformBlock = new TransformBlock <int, string>(n =>
{
Task.Delay(500).Wait();
values.Add(n);
return(n.ToString());
}, new ExecutionDataflowBlockOptions()
{
MaxDegreeOfParallelism = 4
});
for (int i = 0; i < 10; i++)
{
transformBlock.Post(i);
Console.WriteLine("Input count:" + transformBlock.InputCount);
}
for (int i = 0; i < 10; i++)
{
Console.WriteLine("output count:" + transformBlock.OutputCount);
var result = transformBlock.Receive();
var listResult = 0;
values.TryTake(out listResult);
Console.WriteLine($"Result:{result} Output count:{transformBlock.OutputCount} input count:{transformBlock.InputCount} list item: {listResult}");
}
}
static void ShowTransformBlock()
{
// <snippet5>
// Create a TransformBlock<int, double> object that
// computes the square root of its input.
var transformBlock = new TransformBlock <int, double>(n => Math.Sqrt(n));
// Post several messages to the block.
transformBlock.Post(10);
transformBlock.Post(20);
transformBlock.Post(30);
// Read the output messages from the block.
for (int i = 0; i < 3; i++)
{
Console.WriteLine(transformBlock.Receive());
}
/* Output:
* 3.16227766016838
* 4.47213595499958
* 5.47722557505166
*/
// </snippet5>
}
public void LinkToTransformBlock()
{
var multiply = new TransformBlock <int, int>(item => item * 2);
var subtract = new TransformBlock <int, int>(item => item - 2);
multiply.LinkTo(subtract);
// Send messages to the multiply block
multiply.Post(10);
multiply.Post(20);
multiply.Post(50);
// Read the output from the subtract block and test result
Assert.That(subtract.Receive(), Is.EqualTo(18));
Assert.That(subtract.Receive(), Is.EqualTo(38));
Assert.That(subtract.Receive(), Is.EqualTo(98));
}
public async Task BlockTest()
{
var block = new TransformBlock <int, int>(item =>
{
if (item == 1)
{
throw new InvalidOperationException("Blech.");
}
return(item * 2);
});
block.Post(2);
block.Post(4);
block.Complete();
Assert.AreEqual(4, block.Receive());
Assert.AreEqual(8, block.Receive());
await block.Completion;
}
//画像が削除されて意味がなくなったツイートを消す
//URL転載したやつの転載元ツイートが消された場合
public int RemoveOrphanTweet()
{
const int BulkUnit = 100;
const int RangeSeconds = 300;
const string head = @"DELETE FROM tweet WHERE tweet_id IN";
string BulkDeleteCmd = BulkCmdStrIn(BulkUnit, head);
TransformBlock <long, DataTable> GetTweetBlock = new TransformBlock <long, DataTable>(async(long id) =>
{
using (MySqlCommand Cmd = new MySqlCommand(@"SELECT tweet_id
FROM tweet
WHERE retweet_id IS NULL
AND NOT EXISTS (SELECT * FROM tweet_media WHERE tweet_media.tweet_id = tweet.tweet_id)
AND tweet_id BETWEEN @begin AND @end
ORDER BY tweet_id DESC;"))
{
Cmd.Parameters.AddWithValue("@begin", id);
Cmd.Parameters.AddWithValue("@end", id + SnowFlake.msinSnowFlake * RangeSeconds * 1000 - 1);
return(await SelectTable(Cmd, IsolationLevel.RepeatableRead));
}
}, new ExecutionDataflowBlockOptions {
MaxDegreeOfParallelism = Environment.ProcessorCount
});
DateTimeOffset date = DateTimeOffset.UtcNow.AddHours(-1);
for (int i = 0; i < 20; i++)
{
GetTweetBlock.Post(SnowFlake.SecondinSnowFlake(date, false));
date = date.AddHours(-1);
}
while (true)
{
DataTable Table = GetTweetBlock.Receive();
if (Table.Rows.Count > 0)
{
using (MySqlCommand delcmd = new MySqlCommand(BulkCmdStrIn(Table.Rows.Count, head)))
{
for (int n = 0; n < Table.Rows.Count; n++)
{
delcmd.Parameters.AddWithValue("@" + n.ToString(), Table.Rows[n].Field <long>(0));
}
Console.WriteLine("{0} {1} Tweets removed", date, ExecuteNonQuery(delcmd));
}
}
GetTweetBlock.Post(SnowFlake.SecondinSnowFlake(date, false));
date = date.AddSeconds(-RangeSeconds);
}
}
public IEnumerable <ConsumerResult <TResultPayload> > Generate <TResultPayload>(ISourceCodeProvider dataProvider, IConsumer <TResultPayload> consumer)
{
if (dataProvider == null)
{
throw new ArgumentNullException("dataProvider");
}
if (consumer == null)
{
throw new ArgumentNullException("consumer");
}
var linkOptions = new DataflowLinkOptions {
PropagateCompletion = true
};
var processingTaskRestriction = new ExecutionDataflowBlockOptions {
MaxDegreeOfParallelism = _testsGeneratorRestrictions.MaxProcessingTasksCount
};
var outputTaskRestriction = new ExecutionDataflowBlockOptions {
MaxDegreeOfParallelism = _testsGeneratorRestrictions.MaxWritingTasksCount
};
var producerBuffer = new TransformBlock <string, TestClassInMemoryInfo>(new Func <string, TestClassInMemoryInfo>(Produce), processingTaskRestriction);
var generatedTestsBuffer = new TransformBlock <TestClassInMemoryInfo, ConsumerResult <TResultPayload> >(
new Func <TestClassInMemoryInfo, ConsumerResult <TResultPayload> >(consumer.Consume), outputTaskRestriction);
producerBuffer.LinkTo(generatedTestsBuffer, linkOptions);
_additionalProducerBuffer.LinkTo(generatedTestsBuffer, linkOptions);
var consumerResults = Task.Run(async delegate {
List <ConsumerResult <TResultPayload> > consumerResultsBuffer = new List <ConsumerResult <TResultPayload> >();
while (await generatedTestsBuffer.OutputAvailableAsync())
{
consumerResultsBuffer.Add(generatedTestsBuffer.Receive());
}
return(consumerResultsBuffer);
});
Parallel.ForEach(dataProvider.Provide(), async dataInMemory => {
await producerBuffer.SendAsync(dataInMemory);
});
producerBuffer.Complete();
consumerResults.Wait();
return(consumerResults.Result);
}
public static void TestDownloadHtml()
{
tbUrl.Post("http://www.baidu.com");
tbUrl.Post("http://www.sina.com");
for (var i = 0; i < 3; i++)
{
string result = tbUrl.Receive();
Console.WriteLine(result);
}
tbUrl.Complete();
Console.WriteLine("Post Finished");
tbUrl.Completion.Wait();
Console.WriteLine("Proccess Finished");
}
private static void DataStructure_TransformBlock()
{
var transformBlock = new TransformBlock <int, double>(n => Math.Sqrt(n));
// Post several messages to the block.
transformBlock.Post(10);
transformBlock.Post(20);
transformBlock.Post(30);
// Read the output messages from the block.
for (int i = 0; i < 3; i++)
{
Console.WriteLine(transformBlock.Receive());
}
}
/// <summary>
/// The following basic example creates a TransformBlock<TInput,TOutput> object
/// that computes the square root of its input. The TransformBlock<TInput,TOutput>
/// object takes Int32 values as input and produces Double values as output.
/// </summary>
public static void Run()
{
// Create a TransformBlock<int, double> object that
// computes the square root of its input.
TransformBlock <int, double> transformBlock = new TransformBlock <int, double>(n => Math.Sqrt(n));
// Post several messages to the block.
transformBlock.Post(10);
transformBlock.Post(20);
transformBlock.Post(30);
// Read the output messages from the block.
for (int i = 0; i < 3; i++)
{
Console.WriteLine(transformBlock.Receive());
}
}
private static DrillStats ExecuteConnections(DrillOptions drillOptions)
{
ThreadPool.SetMinThreads(drillOptions.ConnectionCount,
drillOptions.ConnectionCount);
ServicePointManager.DefaultConnectionLimit = drillOptions.ConnectionCount;
var aggregatedResults = new List <RequestResult>();
List <RequestResult> RequestFunc(DrillOptions options)
{
return(ExecuteConnection(options));
}
var executionDataflowBlockOptions = new ExecutionDataflowBlockOptions
{
MaxDegreeOfParallelism = drillOptions.ConnectionCount
};
var transformBlock = new TransformBlock <DrillOptions, List <RequestResult> >(
RequestFunc, executionDataflowBlockOptions);
for (var i = 0; i < drillOptions.ConnectionCount; i++)
{
transformBlock.Post(drillOptions);
}
for (var i = 0; i < drillOptions.ConnectionCount; i++)
{
var requestResults = transformBlock.Receive();
aggregatedResults.AddRange(requestResults);
}
var drillStats = new DrillStats
{
AverageResponseTime = aggregatedResults.Average(a => a.ResponseMilliseconds),
ConnectionCount = drillOptions.ConnectionCount,
TotalRequestCount = aggregatedResults.Count,
FailureCount = aggregatedResults.Count(c => !c.IsSuccessful),
RequestResults = aggregatedResults
};
drillOptions.Recorder?.RecordDrill(drillOptions, drillStats);
return(drillStats);
}
public static async Task SquareBlock()
{
var squareRootBlock = new TransformBlock <double, double>(x => Math.Sqrt(x));
var subtractBlock = new TransformBlock <double, double>(item => item - 2.0);
//var options = new DataflowLinkOptions { PropagateCompletion = true };
//squareRootBlock.LinkTo(subtractBlock, options);
//// The first block's completion is automatically propagated to the second block.
//squareRootBlock.Complete();
//await subtractBlock.Completion;
await squareRootBlock.SendAsync(25.0);
double result = squareRootBlock.Receive();
double sqrt;
squareRootBlock.TryReceive(out sqrt);
}
public static void TestSync8()
{
tbSync.LinkTo(ab4);
for (int i = 0; i < 10; i++)
{
tbSync.Post(i);
}
for (int i = 9; i >= 0; i--)
{
Console.WriteLine(tbSync.Receive());
}
tbSync.Complete();
Console.WriteLine("Post finished");
tbSync.Completion.Wait();
Console.WriteLine("TransformBlock process finished");
}
static public void Run()
{
Func <int, int> fn = n => {
Thread.Sleep(1000);
return(n * n);
};
var tfBlock = new TransformBlock <int, int>(fn);
for (int i = 0; i < 10; i++)
{
tfBlock.Post(i);
}
for (int i = 0; i < 10; i++)
{
int result = tfBlock.Receive();
Console.WriteLine(result);
}
Console.WriteLine("Done");
}
private static void Example1() // NOTE: Синхронный прием данных
{
Func <int, int> fn = n =>
{
Thread.Sleep(TimeSpan.FromSeconds(1));
return(n * n);
};
var transformBlock = new TransformBlock <int, int>(fn);
for (var i = 0; i < 10; i++)
{
transformBlock.Post(i);
}
for (var i = 0; i < 10; i++)
{
var result = transformBlock.Receive();
Console.WriteLine(result);
}
Console.WriteLine("Done");
}
public void SimpleTransform()
{
var block = new TransformBlock <int, string>(a =>
{
Task.Delay(500).Wait();
return(a.ToString());
});
for (int i = 0; i < 10; i++)
{
block.Post(i);
Console.WriteLine($"Transform input queue: {block.InputCount}");
}
for (int i = 0; i < 10; i++)
{
var result = block.Receive();
Console.WriteLine($"Received: {result}");
Console.WriteLine($"Transform output queue: {block.OutputCount}");
}
Console.WriteLine("Done!");
}
public IMetaData TransformBlockUsage(string stringToSplit)
{
Console.WriteLine($"Inside {nameof(TplDataflow1ExecutionBlocksController)} - {nameof(TransformBlockUsage)}");
// Create the members of the pipeline.
var transformBlockSplitAnInputStringIntoArray = new TransformBlock <string, string[]>(input =>
Functions.SplitAnInputStringIntoArray(input, SplitterSeparator)
);
var transformBlockCreateASingleMedatadataFromStrings = new TransformBlock <string[], IMetaData>(stringArray =>
Functions.CreateASingleMedatadataFromStrings(stringArray)
);
// Connect the dataflow blocks to form a pipeline.
transformBlockSplitAnInputStringIntoArray.LinkTo(transformBlockCreateASingleMedatadataFromStrings, DataflowOptions.LinkOptions);
// Start TransformBlockUsage pipeline with the input values.
transformBlockSplitAnInputStringIntoArray.Post(stringToSplit);
// Mark the head of the pipeline as complete.
transformBlockSplitAnInputStringIntoArray.Complete();
// Return the value transformed by the last TransformBlock.
return(transformBlockCreateASingleMedatadataFromStrings.Receive());
}
public void RunWriteOnceBlockConformanceTests()
{
bool passed = true, localPassed = true;
{
// Test posting then receiving
localPassed = true;
var wob = new WriteOnceBlock <int>(i => i);
int successfulPosts = 0;
for (int i = 10; i <= 20; i++)
{
successfulPosts += wob.Post(i) ? 1 : 0;
}
localPassed |= successfulPosts == 1;
localPassed |= wob.Receive() == 10;
Console.WriteLine("{0}: Posting then receiving", localPassed ? "Success" : "Failure");
passed &= localPassed;
}
{
// Test receiving then posting
localPassed = true;
var wob = new WriteOnceBlock <int>(i => i);
Task.Factory.StartNew(() =>
{
Task.Delay(1000).Wait();
wob.Post(42);
});
localPassed |= wob.Receive() == 42;
localPassed |= wob.Post(43) == false;
wob.Completion.Wait();
Console.WriteLine("{0}: Receiving then posting", localPassed ? "Success" : "Failure");
passed &= localPassed;
}
{
// Test broadcasting
localPassed = true;
var wob = new WriteOnceBlock <int>(i => i + 1);
var tb1 = new TransformBlock <int, int>(i => i);
var tb2 = new TransformBlock <int, int>(i => i);
var tb3 = new TransformBlock <int, int>(i => i);
wob.LinkTo(tb1);
wob.LinkTo(tb2);
wob.LinkTo(tb3);
wob.Post(42);
localPassed |= tb1.Receive() == 43;
localPassed |= tb2.Receive() == 43;
localPassed |= tb3.Receive() == 43;
Console.WriteLine("{0}: Broadcasting", localPassed ? "Success" : "Failure");
passed &= localPassed;
}
{
// Test using a precanceled token
localPassed = true;
try
{
var cts = new CancellationTokenSource();
cts.Cancel();
var dbo = new DataflowBlockOptions {
CancellationToken = cts.Token
};
var wob = new WriteOnceBlock <int>(i => i, dbo);
int ignoredValue;
IList <int> ignoredValues;
localPassed &= wob.LinkTo(new ActionBlock <int>(delegate { })) != null;
localPassed &= wob.SendAsync(42).Result == false;
localPassed &= ((IReceivableSourceBlock <int>)wob).TryReceiveAll(out ignoredValues) == false;
localPassed &= wob.Post(42) == false;
localPassed &= wob.TryReceive(out ignoredValue) == false;
localPassed &= wob.Completion != null;
wob.Complete();
}
catch (Exception)
{
localPassed = false;
}
Console.WriteLine("{0}: Precanceled tokens work correctly", localPassed ? "Success" : "Failure");
passed &= localPassed;
}
{
// Test using token canceled after construction
localPassed = true;
try
{
var cts = new CancellationTokenSource();
var dbo = new DataflowBlockOptions {
CancellationToken = cts.Token
};
var wob = new WriteOnceBlock <int>(i => i, dbo);
cts.Cancel();
int ignoredValue;
IList <int> ignoredValues;
localPassed &= wob.LinkTo(new ActionBlock <int>(delegate { })) != null;
localPassed &= wob.SendAsync(42).Result == false;
localPassed &= ((IReceivableSourceBlock <int>)wob).TryReceiveAll(out ignoredValues) == false;
localPassed &= wob.Post(42) == false;
localPassed &= wob.TryReceive(out ignoredValue) == false;
localPassed &= wob.Completion != null;
wob.Complete();
}
catch (Exception)
{
localPassed = false;
}
Console.WriteLine("{0}: Precanceled tokens work correctly", localPassed ? "Success" : "Failure");
passed &= localPassed;
}
Assert.True(passed, "Test failed.");
}
//[Fact(Skip = "Outerloop")]
public void RunTransformBlockConformanceTests()
{
bool passed = true;
// SYNC
#region Sync
{
// Do everything twice - once through OfferMessage and Once through Post
for (FeedMethod feedMethod = FeedMethod._First; passed & feedMethod < FeedMethod._Count; feedMethod++)
{
Func<DataflowBlockOptions, TargetProperties<int>> transformBlockFactory =
options =>
{
TransformBlock<int, int> transformBlock = new TransformBlock<int, int>(i => i, (ExecutionDataflowBlockOptions)options);
ActionBlock<int> actionBlock = new ActionBlock<int>(i => TrackCaptures(i), (ExecutionDataflowBlockOptions)options);
transformBlock.LinkTo(actionBlock);
return new TargetProperties<int> { Target = transformBlock, Capturer = actionBlock, ErrorVerifyable = false };
};
CancellationTokenSource cancellationSource = new CancellationTokenSource();
var defaultOptions = new ExecutionDataflowBlockOptions();
var dopOptions = new ExecutionDataflowBlockOptions { MaxDegreeOfParallelism = Environment.ProcessorCount };
var mptOptions = new ExecutionDataflowBlockOptions { MaxDegreeOfParallelism = Environment.ProcessorCount, MaxMessagesPerTask = 2 };
var cancellationOptions = new ExecutionDataflowBlockOptions { MaxDegreeOfParallelism = Environment.ProcessorCount, MaxMessagesPerTask = 2, CancellationToken = cancellationSource.Token };
passed &= FeedTarget(transformBlockFactory, defaultOptions, 1, Intervention.None, null, feedMethod, true);
passed &= FeedTarget(transformBlockFactory, defaultOptions, 1, Intervention.None, null, feedMethod, true);
passed &= FeedTarget(transformBlockFactory, dopOptions, 1, Intervention.None, null, feedMethod, true);
passed &= FeedTarget(transformBlockFactory, mptOptions, 1, Intervention.None, null, feedMethod, true);
passed &= FeedTarget(transformBlockFactory, mptOptions, 1, Intervention.Complete, null, feedMethod, true);
passed &= FeedTarget(transformBlockFactory, cancellationOptions, 1, Intervention.Cancel, cancellationSource, feedMethod, true);
}
// Test chained Post/Receive
{
bool localPassed = true;
const int ITERS = 2;
var network = Chain<TransformBlock<int, int>, int>(4, () => new TransformBlock<int, int>(i => i * 2));
for (int i = 0; i < ITERS; i++)
{
network.Post(i);
localPassed &= (((IReceivableSourceBlock<int>)network).Receive() == i * 16);
}
Console.WriteLine("{0}: Chained Post/Receive", localPassed ? "Success" : "Failure");
passed &= localPassed;
}
// Test chained SendAsync/Receive
{
bool localPassed = true;
const int ITERS = 2;
var network = Chain<TransformBlock<int, int>, int>(4, () => new TransformBlock<int, int>(i => i * 2));
for (int i = 0; i < ITERS; i++)
{
network.SendAsync(i);
localPassed &= (((IReceivableSourceBlock<int>)network).Receive() == i * 16);
}
Console.WriteLine("{0}: Chained SendAsync/Receive", localPassed ? "Success" : "Failure");
passed &= localPassed;
}
// Test chained Post all then Receive
{
bool localPassed = true;
const int ITERS = 2;
var network = Chain<TransformBlock<int, int>, int>(4, () => new TransformBlock<int, int>(i => i * 2));
for (int i = 0; i < ITERS; i++) localPassed &= network.Post(i) == true;
for (int i = 0; i < ITERS; i++) localPassed &= ((IReceivableSourceBlock<int>)network).Receive() == i * 16;
Console.WriteLine("{0}: Chained Post all then Receive", localPassed ? "Success" : "Failure");
passed &= localPassed;
}
// Test chained SendAsync all then Receive
{
bool localPassed = true;
const int ITERS = 2;
var network = Chain<TransformBlock<int, int>, int>(4, () => new TransformBlock<int, int>(i => i * 2));
var tasks = new Task[ITERS];
for (int i = 1; i <= ITERS; i++) tasks[i - 1] = network.SendAsync(i);
Task.WaitAll(tasks);
int total = 0;
for (int i = 1; i <= ITERS; i++) total += ((IReceivableSourceBlock<int>)network).Receive();
localPassed &= (total == ((ITERS * (ITERS + 1)) / 2 * 16));
Console.WriteLine("{0}: Chained SendAsync all then Receive", localPassed ? "Success" : "Failure");
passed &= localPassed;
}
// Test that OperationCanceledExceptions are ignored
{
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;
}
}
#endregion
#region Async
// ASYNC (a copy of the sync but with constructors returning Task<T> instead of T
{
// Do everything twice - once through OfferMessage and Once through Post
for (FeedMethod feedMethod = FeedMethod._First; passed & feedMethod < FeedMethod._Count; feedMethod++)
{
Func<DataflowBlockOptions, TargetProperties<int>> transformBlockFactory =
options =>
{
TransformBlock<int, int> transformBlock = new TransformBlock<int, int>(i => Task.Factory.StartNew(() => i), (ExecutionDataflowBlockOptions)options);
ActionBlock<int> actionBlock = new ActionBlock<int>(i => TrackCaptures(i), (ExecutionDataflowBlockOptions)options);
transformBlock.LinkTo(actionBlock);
return new TargetProperties<int> { Target = transformBlock, Capturer = actionBlock, ErrorVerifyable = false };
};
CancellationTokenSource cancellationSource = new CancellationTokenSource();
var defaultOptions = new ExecutionDataflowBlockOptions();
var dopOptions = new ExecutionDataflowBlockOptions { MaxDegreeOfParallelism = Environment.ProcessorCount };
var mptOptions = new ExecutionDataflowBlockOptions { MaxDegreeOfParallelism = Environment.ProcessorCount, MaxMessagesPerTask = 2 };
var cancellationOptions = new ExecutionDataflowBlockOptions { MaxDegreeOfParallelism = Environment.ProcessorCount, MaxMessagesPerTask = 2, CancellationToken = cancellationSource.Token };
passed &= FeedTarget(transformBlockFactory, defaultOptions, 1, Intervention.None, null, feedMethod, true);
passed &= FeedTarget(transformBlockFactory, dopOptions, 10, Intervention.None, null, feedMethod, true);
passed &= FeedTarget(transformBlockFactory, mptOptions, 10000, Intervention.None, null, feedMethod, true);
passed &= FeedTarget(transformBlockFactory, mptOptions, 10000, Intervention.Complete, null, feedMethod, true);
passed &= FeedTarget(transformBlockFactory, cancellationOptions, 10000, Intervention.Cancel, cancellationSource, feedMethod, true);
}
// Test chained Post/Receive
{
bool localPassed = true;
const int ITERS = 2;
var network = Chain<TransformBlock<int, int>, int>(4, () => new TransformBlock<int, int>(i => Task.Factory.StartNew(() => i * 2)));
for (int i = 0; i < ITERS; i++)
{
network.Post(i);
localPassed &= (((IReceivableSourceBlock<int>)network).Receive() == i * 16);
}
Console.WriteLine("{0}: Chained Post/Receive", localPassed ? "Success" : "Failure");
passed &= localPassed;
}
// Test chained SendAsync/Receive
{
bool localPassed = true;
const int ITERS = 2;
var network = Chain<TransformBlock<int, int>, int>(4, () => new TransformBlock<int, int>(i => Task.Factory.StartNew(() => i * 2)));
for (int i = 0; i < ITERS; i++)
{
network.SendAsync(i);
localPassed &= (((IReceivableSourceBlock<int>)network).Receive() == i * 16);
}
Console.WriteLine("{0}: Chained SendAsync/Receive", localPassed ? "Success" : "Failure");
passed &= localPassed;
}
// Test chained Post all then Receive
{
bool localPassed = true;
const int ITERS = 2;
var network = Chain<TransformBlock<int, int>, int>(4, () => new TransformBlock<int, int>(i => Task.Factory.StartNew(() => i * 2)));
for (int i = 0; i < ITERS; i++) localPassed &= network.Post(i) == true;
for (int i = 0; i < ITERS; i++) localPassed &= ((IReceivableSourceBlock<int>)network).Receive() == i * 16;
Console.WriteLine("{0}: Chained Post all then Receive", localPassed ? "Success" : "Failure");
passed &= localPassed;
}
// Test chained SendAsync all then Receive
{
bool localPassed = true;
const int ITERS = 2;
var network = Chain<TransformBlock<int, int>, int>(4, () => new TransformBlock<int, int>(i => Task.Factory.StartNew(() => i * 2)));
var tasks = new Task[ITERS];
for (int i = 1; i <= ITERS; i++) tasks[i - 1] = network.SendAsync(i);
Task.WaitAll(tasks);
int total = 0;
for (int i = 1; i <= ITERS; i++) total += ((IReceivableSourceBlock<int>)network).Receive();
localPassed &= (total == ((ITERS * (ITERS + 1)) / 2 * 16));
Console.WriteLine("{0}: Chained SendAsync all then Receive", localPassed ? "Success" : "Failure");
passed &= localPassed;
}
// Test that OperationCanceledExceptions are ignored
{
bool localPassed = true;
var t = new TransformBlock<int, int>(i =>
{
if ((i % 2) == 0) throw new OperationCanceledException();
return Task.Factory.StartNew(() => 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 that null tasks are ignored
{
bool localPassed = true;
var t = new TransformBlock<int, int>(i =>
{
if ((i % 2) == 0) return null;
return Task.Factory.StartNew(() => 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}: null tasks are ignored", localPassed ? "Success" : "Failure");
passed &= localPassed;
}
// Test that null tasks are ignored when a reordering buffer is in place
{
bool localPassed = true;
var t = new TransformBlock<int, int>(i =>
{
if (i == 0)
{
Task.Delay(10).Wait();
return null;
}
return Task.Factory.StartNew(() => i);
}, new ExecutionDataflowBlockOptions { MaxDegreeOfParallelism = 2 });
t.Post(0);
t.Post(1);
try
{
localPassed &= t.Receive(TimeSpan.FromSeconds(4)) == 1;
}
catch
{
localPassed = false;
}
Console.WriteLine("{0}: null tasks are ignored with reordering buffer", localPassed ? "Success" : "Failure");
passed &= localPassed;
}
// Test faulting from the delegate
{
bool localPassed = true;
var t = new TransformBlock<int, int>(new Func<int, Task<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 from delegate handled correctly", localPassed ? "Success" : "Failure");
passed &= localPassed;
}
// Test faulting from the task
{
bool localPassed = true;
var t = new TransformBlock<int, int>(new Func<int, Task<int>>(i => Task<int>.Factory.StartNew(() => { 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 from task handled correctly", localPassed ? "Success" : "Failure");
passed &= localPassed;
}
}
#endregion
Assert.True(passed, "Test failed.");
}
public void RunBroadcastBlockConformanceTests()
{
bool localPassed = true;
{
// Test posting then receiving
localPassed = true;
var bb = new BroadcastBlock <int>(i => i);
for (int i = 0; i < 2; i++)
{
bb.Post(i);
}
Task.Delay(1).Wait();
localPassed |= bb.Receive() == 1;
Assert.True(localPassed, string.Format("{0}: Posting then receiving", localPassed ? "Success" : "Failure"));
}
{
// Test receiving then posting
localPassed = true;
var bb = new BroadcastBlock <int>(i => i);
Task.Run(() =>
{
Task.Delay(1).Wait();
bb.Post(42);
});
localPassed |= bb.Receive() == 42;
Assert.True(localPassed, string.Format("{0}: Receiving then posting", localPassed ? "Success" : "Failure"));
}
{
// Test broadcasting
localPassed = true;
var bb = new BroadcastBlock <int>(i => i + 1);
var tb1 = new TransformBlock <int, int>(i => i);
var tb2 = new TransformBlock <int, int>(i => i);
var tb3 = new TransformBlock <int, int>(i => i);
bb.LinkTo(tb1);
bb.LinkTo(tb2);
bb.LinkTo(tb3);
for (int i = 0; i < 2; i++)
{
bb.Post(i);
}
for (int i = 0; i < 2; i++)
{
localPassed |= tb1.Receive() == i + 1;
localPassed |= tb2.Receive() == i + 1;
localPassed |= tb3.Receive() == i + 1;
}
Assert.True(localPassed, string.Format("{0}: Broadcasting", localPassed ? "Success" : "Failure"));
}
// Test using a precanceled token
{
localPassed = true;
try
{
var cts = new CancellationTokenSource();
cts.Cancel();
var dbo = new DataflowBlockOptions {
CancellationToken = cts.Token
};
var bb = new BroadcastBlock <int>(i => i, dbo);
int ignoredValue;
IList <int> ignoredValues;
localPassed &= bb.LinkTo(new ActionBlock <int>(delegate { })) != null;
localPassed &= bb.SendAsync(42).Result == false;
localPassed &= ((IReceivableSourceBlock <int>)bb).TryReceiveAll(out ignoredValues) == false;
localPassed &= bb.Post(42) == false;
localPassed &= bb.TryReceive(out ignoredValue) == false;
localPassed &= bb.Completion != null;
bb.Complete();
}
catch (Exception)
{
localPassed = false;
}
Assert.True(localPassed, string.Format("{0}: Precanceled tokens work correctly", localPassed ? "Success" : "Failure"));
}
}
public void RunWriteOnceBlockConformanceTests()
{
bool passed = true, localPassed = true;
{
// Test posting then receiving
localPassed = true;
var wob = new WriteOnceBlock<int>(i => i);
int successfulPosts = 0;
for (int i = 10; i <= 20; i++)
{
successfulPosts += wob.Post(i) ? 1 : 0;
}
localPassed |= successfulPosts == 1;
localPassed |= wob.Receive() == 10;
Console.WriteLine("{0}: Posting then receiving", localPassed ? "Success" : "Failure");
passed &= localPassed;
}
{
// Test receiving then posting
localPassed = true;
var wob = new WriteOnceBlock<int>(i => i);
Task.Factory.StartNew(() =>
{
Task.Delay(1000).Wait();
wob.Post(42);
});
localPassed |= wob.Receive() == 42;
localPassed |= wob.Post(43) == false;
wob.Completion.Wait();
Console.WriteLine("{0}: Receiving then posting", localPassed ? "Success" : "Failure");
passed &= localPassed;
}
{
// Test broadcasting
localPassed = true;
var wob = new WriteOnceBlock<int>(i => i + 1);
var tb1 = new TransformBlock<int, int>(i => i);
var tb2 = new TransformBlock<int, int>(i => i);
var tb3 = new TransformBlock<int, int>(i => i);
wob.LinkTo(tb1);
wob.LinkTo(tb2);
wob.LinkTo(tb3);
wob.Post(42);
localPassed |= tb1.Receive() == 43;
localPassed |= tb2.Receive() == 43;
localPassed |= tb3.Receive() == 43;
Console.WriteLine("{0}: Broadcasting", localPassed ? "Success" : "Failure");
passed &= localPassed;
}
{
// Test using a precanceled token
localPassed = true;
try
{
var cts = new CancellationTokenSource();
cts.Cancel();
var dbo = new DataflowBlockOptions { CancellationToken = cts.Token };
var wob = new WriteOnceBlock<int>(i => i, dbo);
int ignoredValue;
IList<int> ignoredValues;
localPassed &= wob.LinkTo(new ActionBlock<int>(delegate { })) != null;
localPassed &= wob.SendAsync(42).Result == false;
localPassed &= ((IReceivableSourceBlock<int>)wob).TryReceiveAll(out ignoredValues) == false;
localPassed &= wob.Post(42) == false;
localPassed &= wob.TryReceive(out ignoredValue) == false;
localPassed &= wob.Completion != null;
wob.Complete();
}
catch (Exception)
{
localPassed = false;
}
Console.WriteLine("{0}: Precanceled tokens work correctly", localPassed ? "Success" : "Failure");
passed &= localPassed;
}
{
// Test using token canceled after construction
localPassed = true;
try
{
var cts = new CancellationTokenSource();
var dbo = new DataflowBlockOptions { CancellationToken = cts.Token };
var wob = new WriteOnceBlock<int>(i => i, dbo);
cts.Cancel();
int ignoredValue;
IList<int> ignoredValues;
localPassed &= wob.LinkTo(new ActionBlock<int>(delegate { })) != null;
localPassed &= wob.SendAsync(42).Result == false;
localPassed &= ((IReceivableSourceBlock<int>)wob).TryReceiveAll(out ignoredValues) == false;
localPassed &= wob.Post(42) == false;
localPassed &= wob.TryReceive(out ignoredValue) == false;
localPassed &= wob.Completion != null;
wob.Complete();
}
catch (Exception)
{
localPassed = false;
}
Console.WriteLine("{0}: Precanceled tokens work correctly", localPassed ? "Success" : "Failure");
passed &= localPassed;
}
Assert.True(passed, "Test failed.");
}
private Frame Dequeue()
{
FScheduledFrameInfos.RemoveFirst();
return(FFramePreloader.Receive());
}
//[Fact(Skip = "Outerloop")]
public void RunBroadcastBlockConformanceTests()
{
bool localPassed = true;
{
// Test posting then receiving
localPassed = true;
var bb = new BroadcastBlock<int>(i => i);
for (int i = 0; i < 2; i++) bb.Post(i);
Task.Delay(1).Wait();
localPassed |= bb.Receive() == 1;
Assert.True(localPassed, string.Format("{0}: Posting then receiving", localPassed ? "Success" : "Failure"));
}
{
// Test receiving then posting
localPassed = true;
var bb = new BroadcastBlock<int>(i => i);
Task.Factory.StartNew(() =>
{
Task.Delay(1).Wait();
bb.Post(42);
});
localPassed |= bb.Receive() == 42;
Assert.True(localPassed, string.Format("{0}: Receiving then posting", localPassed ? "Success" : "Failure"));
}
{
// Test broadcasting
localPassed = true;
var bb = new BroadcastBlock<int>(i => i + 1);
var tb1 = new TransformBlock<int, int>(i => i);
var tb2 = new TransformBlock<int, int>(i => i);
var tb3 = new TransformBlock<int, int>(i => i);
bb.LinkTo(tb1);
bb.LinkTo(tb2);
bb.LinkTo(tb3);
for (int i = 0; i < 2; i++)
{
bb.Post(i);
}
for (int i = 0; i < 2; i++)
{
localPassed |= tb1.Receive() == i + 1;
localPassed |= tb2.Receive() == i + 1;
localPassed |= tb3.Receive() == i + 1;
}
Assert.True(localPassed, string.Format("{0}: Broadcasting", localPassed ? "Success" : "Failure"));
}
// Test using a precanceled token
{
localPassed = true;
try
{
var cts = new CancellationTokenSource();
cts.Cancel();
var dbo = new DataflowBlockOptions { CancellationToken = cts.Token };
var bb = new BroadcastBlock<int>(i => i, dbo);
int ignoredValue;
IList<int> ignoredValues;
localPassed &= bb.LinkTo(new ActionBlock<int>(delegate { })) != null;
localPassed &= bb.SendAsync(42).Result == false;
localPassed &= ((IReceivableSourceBlock<int>)bb).TryReceiveAll(out ignoredValues) == false;
localPassed &= bb.Post(42) == false;
localPassed &= bb.TryReceive(out ignoredValue) == false;
localPassed &= bb.Completion != null;
bb.Complete();
}
catch (Exception)
{
localPassed = false;
}
Assert.True(localPassed, string.Format("{0}: Precanceled tokens work correctly", localPassed ? "Success" : "Failure"));
}
}
