TakeLastBuffer<TSource>
using System.Collections.Generic;
using System.Reactive.Concurrency;
using System.Runtime.CompilerServices;
namespace System.Reactive.Linq.ObservableImpl
{
[System.Runtime.CompilerServices.NullableContext(1)]
[System.Runtime.CompilerServices.Nullable(0)]
internal static class TakeLastBuffer<[System.Runtime.CompilerServices.Nullable(2)] TSource>
{
[System.Runtime.CompilerServices.Nullable(new byte[] {
0,
1,
1,
1,
0
})]
internal sealed class Count : Producer<IList<TSource>, Count._>
{
[System.Runtime.CompilerServices.Nullable(new byte[] {
0,
1,
1,
1
})]
internal sealed class _ : Sink<TSource, IList<TSource>>
{
private readonly int _count;
private readonly Queue<TSource> _queue;
public _(int count, IObserver<IList<TSource>> observer)
: base(observer)
{
_count = count;
_queue = new Queue<TSource>();
}
public override void OnNext(TSource value)
{
_queue.Enqueue(value);
if (_queue.Count > _count)
_queue.Dequeue();
}
public override void OnCompleted()
{
List<TSource> list = new List<TSource>(_queue.Count);
while (_queue.Count > 0) {
list.Add(_queue.Dequeue());
}
ForwardOnNext(list);
ForwardOnCompleted();
}
}
private readonly IObservable<TSource> _source;
private readonly int _count;
public Count(IObservable<TSource> source, int count)
{
_source = source;
_count = count;
}
[return: System.Runtime.CompilerServices.Nullable(new byte[] {
1,
0
})]
protected override _ CreateSink(IObserver<IList<TSource>> observer)
{
return new _(_count, observer);
}
protected override void Run([System.Runtime.CompilerServices.Nullable(new byte[] {
1,
0
})] _ sink)
{
sink.Run(_source);
}
}
[System.Runtime.CompilerServices.Nullable(new byte[] {
0,
1,
1,
1,
0
})]
internal sealed class Time : Producer<IList<TSource>, Time._>
{
[System.Runtime.CompilerServices.Nullable(new byte[] {
0,
1,
1,
1
})]
internal sealed class _ : Sink<TSource, IList<TSource>>
{
private readonly TimeSpan _duration;
[System.Runtime.CompilerServices.Nullable(new byte[] {
1,
0,
1
})]
private readonly Queue<System.Reactive.TimeInterval<TSource>> _queue;
[System.Runtime.CompilerServices.Nullable(2)]
private IStopwatch _watch;
public _(TimeSpan duration, IObserver<IList<TSource>> observer)
: base(observer)
{
_duration = duration;
_queue = new Queue<System.Reactive.TimeInterval<TSource>>();
}
public void Run(IObservable<TSource> source, IScheduler scheduler)
{
_watch = scheduler.StartStopwatch();
Run(source);
}
public override void OnNext(TSource value)
{
TimeSpan elapsed = _watch.Elapsed;
_queue.Enqueue(new System.Reactive.TimeInterval<TSource>(value, elapsed));
Trim(elapsed);
}
public override void OnCompleted()
{
TimeSpan elapsed = _watch.Elapsed;
Trim(elapsed);
List<TSource> list = new List<TSource>(_queue.Count);
while (_queue.Count > 0) {
list.Add(_queue.Dequeue().Value);
}
ForwardOnNext(list);
ForwardOnCompleted();
}
private void Trim(TimeSpan now)
{
while (_queue.Count > 0 && now - _queue.Peek().Interval >= _duration) {
_queue.Dequeue();
}
}
}
private readonly IObservable<TSource> _source;
private readonly TimeSpan _duration;
private readonly IScheduler _scheduler;
public Time(IObservable<TSource> source, TimeSpan duration, IScheduler scheduler)
{
_source = source;
_duration = duration;
_scheduler = scheduler;
}
[return: System.Runtime.CompilerServices.Nullable(new byte[] {
1,
0
})]
protected override _ CreateSink(IObserver<IList<TSource>> observer)
{
return new _(_duration, observer);
}
protected override void Run([System.Runtime.CompilerServices.Nullable(new byte[] {
1,
0
})] _ sink)
{
sink.Run(_source, _scheduler);
}
}
}
}