public Task <int> Start()
{
return(Task <int> .Factory.StartNew(() =>
{
SampleUtilities.DoCpuIntensiveOperation(2.0);
return 42;
}));
}
MarketRecommendation CompareModels(IEnumerable <MarketModel> models)
{
SampleUtilities.DoCpuIntensiveOperation(2.0 * speedFactor, cts.Token);
if (cts.Token.IsCancellationRequested)
{
return(null);
}
else
{
return(ModelComparer.Run(models.ToArray()));
}
}
/// <summary>
/// Normalize stock data.
/// </summary>
StockDataCollection NormalizeData(StockDataCollection marketData)
{
SampleUtilities.DoCpuIntensiveOperation(2.0 * speedFactor, cts.Token);
if (cts.Token.IsCancellationRequested)
{
return(null);
}
else
{
return(new StockDataCollection(marketData));
}
}
MarketModel RunModel(StockAnalysisCollection data)
{
SampleUtilities.DoCpuIntensiveOperation(2.0 * speedFactor, cts.Token);
if (cts.Token.IsCancellationRequested)
{
return(null);
}
else
{
return(MarketModeler.Run(data));
}
}
static void Chapter6Example01ParallelWhileNotEmpty2(Tree <string> tree)
{
for (int i = 0; i < N; i++)
{
ConcurrentBag <string> result = new ConcurrentBag <string>();
Walk5(tree, (data) =>
{
SampleUtilities.DoCpuIntensiveOperation(Time);
result.Add(data);
});
}
}
static void Chapter6Example1Sequential(Tree <string> tree)
{
for (int i = 0; i < N; i++)
{
List <string> result = new List <string>();
SequentialWalk(tree, (data) =>
{
SampleUtilities.DoCpuIntensiveOperation(Time);
result.Add(data);
});
}
Console.WriteLine();
}
StockDataCollection MergeMarketData(IEnumerable <StockDataCollection> allMarketData)
{
SampleUtilities.DoCpuIntensiveOperation(2.0 * speedFactor, cts.Token);
var securities = new List <StockData>();
if (!cts.Token.IsCancellationRequested)
{
foreach (StockDataCollection md in allMarketData)
{
securities.AddRange(md);
}
}
if (cts.Token.IsCancellationRequested)
{
return(null);
}
else
{
return(new StockDataCollection(securities));
}
}
/// <summary>
/// A computationally intensive function
/// </summary>
static int F4(int value1, int value2)
{
SampleUtilities.DoCpuIntensiveOperation(0.1);
return(value1 + value2);
}
/// <summary>
/// A computationally intensive function
/// </summary>
static int F3(int value)
{
SampleUtilities.DoCpuIntensiveOperation(1.0);
return(value + 1);
}
/// <summary>
/// A computationally intensive function
/// </summary>
static int F1(int value)
{
SampleUtilities.DoCpuIntensiveOperation(2.0);
return(value * value);
}
static void SearchRight(CancellationToken token)
{
token.ThrowIfCancellationRequested();
SampleUtilities.DoCpuIntensiveOperation(TaskSeconds * .3, token);
token.ThrowIfCancellationRequested();
}
static void DoCenter()
{
SampleUtilities.DoCpuIntensiveOperation(TaskSeconds * .2);
}
static void DoRight()
{
SampleUtilities.DoCpuIntensiveOperation(TaskSeconds * .3);
}
static void Stage4AdditionalWork()
{
SampleUtilities.DoCpuIntensiveOperation(StageTime[3]);
}
static void Stage3AdditionalWork()
{
SampleUtilities.DoCpuIntensiveOperation(StageTime[2] / Phrases.Length);
}