/// <summary>
/// 命令式生成质数
/// </summary>
/// <param name="amount"></param>
public static void GeneratePrimeByImperative(int amount)
{
foreach (var prime in PrimeGenerator.Generate(amount))
{
Console.WriteLine($"{prime}@{DateTime.Now}");
}
}
/// <summary>
/// 同步方法生成Observable，阻塞线程
/// </summary>
/// <param name="amount"></param>
/// <returns></returns>
public static IObservable <int> GeneratePrime(int amount)
{
return(Observable.Create <int>(o =>
{
foreach (var prime in PrimeGenerator.Generate(amount))
{
o.OnNext(prime);
}
o.OnCompleted();
return Disposable.Empty;
}));
}
/// <summary>
/// 简化版的异步方法生成Observable，不阻塞线程，可取消
/// </summary>
/// <param name="amount"></param>
/// <returns></returns>
public static IObservable <int> SimpleGeneratePrimeFromTask(int amount)
{
return(Observable.Create <int>((o, ct) =>
{
return Task.Run(() =>
{
foreach (var prime in PrimeGenerator.Generate(amount))
{
ct.ThrowIfCancellationRequested();
o.OnNext(prime);
}
o.OnCompleted();
}, ct);
}));
}
/// <summary>
/// 异步方法生成Observable，不阻塞线程，可取消
/// </summary>
/// <param name="amount"></param>
/// <returns></returns>
public static IObservable <int> GeneratePrimeFromTask(int amount)
{
return(Observable.Create <int>(o =>
{
var cts = new CancellationTokenSource();
Task.Run(() =>
{
foreach (var prime in PrimeGenerator.Generate(amount))
{
cts.Token.ThrowIfCancellationRequested();
o.OnNext(prime);
}
o.OnCompleted();
}, cts.Token);
return new CancellationDisposable(cts);
}));
}
