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AsyncReply is task-like

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This commit is contained in:
Ahmed Zamil
2019-11-12 20:15:12 +03:00
parent 4f68c08640
commit 76bcd821b5
5 changed files with 479 additions and 297 deletions
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296
Esiur/Core/AsyncReply.cs
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@ -35,301 +35,9 @@ using System.Diagnostics;
namespace Esiur.Core
{
[AsyncMethodBuilder(typeof(AsyncReply<>))]
public class AsyncReply<T> : IAsyncReply<T>
[AsyncMethodBuilder(typeof(AsyncReplyBuilder))]
public class AsyncReply : AsyncReply<object>
{
public bool Debug = false;
protected List<Action<T>> callbacks = new List<Action<T>>();
protected T result;
protected List<Action<AsyncException>> errorCallbacks = new List<Action<AsyncException>>();
protected List<Action<ProgressType, int, int>> progressCallbacks = new List<Action<ProgressType, int, int>>();
protected List<Action<T>> chunkCallbacks = new List<Action<T>>();
//List<AsyncAwaiter> awaiters = new List<AsyncAwaiter>();
object asyncLock = new object();
//public Timer timeout;// = new Timer()
protected bool resultReady = false;
AsyncException exception;
StackTrace trace;
AutoResetEvent mutex = new AutoResetEvent(false);
public static int MaxId;
public int Id;
public bool Ready
{
get { return resultReady; }
}
public T Wait()
{
if (resultReady)
return result;
if (Debug)
Console.WriteLine($"AsyncReply: {Id} Wait");
//mutex = new AutoResetEvent(false);
mutex.WaitOne();
if (Debug)
Console.WriteLine($"AsyncReply: {Id} Wait ended");
return result;
}
public object Result
{
get { return result; }
}
public IAsyncReply<T> Then(Action<T> callback)
{
//lock (callbacksLock)
//{
lock (asyncLock)
{
trace = new StackTrace();
if (resultReady)
{
if (Debug)
Console.WriteLine($"AsyncReply: {Id} Then ready");
callback(result);
return this;
}
//timeout = new Timer(x =>
//{
// // Get calling method name
// Console.WriteLine(trace.GetFrame(1).GetMethod().Name);
// var tr = String.Join("\r\n", trace.GetFrames().Select(f => f.GetMethod().Name));
// timeout.Dispose();
// tr = trace.ToString();
// throw new Exception("Request timeout " + Id);
//}, null, 15000, 0);
if (Debug)
Console.WriteLine($"AsyncReply: {Id} Then pending");
callbacks.Add(callback);
return this;
}
}
public IAsyncReply<T> Error(Action<AsyncException> callback)
{
// lock (callbacksLock)
// {
errorCallbacks.Add(callback);
if (exception != null)
callback(exception);
return this;
//}
}
public IAsyncReply<T> Progress(Action<ProgressType, int, int> callback)
{
//lock (callbacksLock)
//{
progressCallbacks.Add(callback);
return this;
//}
}
public IAsyncReply<T> Chunk(Action<T> callback)
{
// lock (callbacksLock)
// {
chunkCallbacks.Add(callback);
return this;
// }
}
public void Trigger(object result)
{
lock (asyncLock)
{
//timeout?.Dispose();
if (Debug)
Console.WriteLine($"AsyncReply: {Id} Trigger");
if (resultReady)
return;
this.result = (T)result;
resultReady = true;
//if (mutex != null)
mutex.Set();
foreach (var cb in callbacks)
cb((T)result);
if (Debug)
Console.WriteLine($"AsyncReply: {Id} Trigger ended");
}
}
public void TriggerError(Exception exception)
{
//timeout?.Dispose();
if (resultReady)
return;
if (exception is AsyncException)
this.exception = exception as AsyncException;
else
this.exception = new AsyncException(ErrorType.Management, 0, exception.Message);
// lock (callbacksLock)
// {
foreach (var cb in errorCallbacks)
cb(this.exception);
// }
mutex?.Set();
}
public void TriggerProgress(ProgressType type, int value, int max)
{
//timeout?.Dispose();
if (resultReady)
return;
//lock (callbacksLock)
//{
foreach (var cb in progressCallbacks)
cb(type, value, max);
//}
}
public void TriggerChunk(object value)
{
//timeout?.Dispose();
if (resultReady)
return;
//lock (callbacksLock)
//{
foreach (var cb in chunkCallbacks)
cb((T)value);
//}
}
public AsyncAwaiter<T> GetAwaiter()
{
return new AsyncAwaiter<T>(this);
}
public AsyncReply()
{
// this.Debug = true;
Id = MaxId++;
}
public AsyncReply(T result)
{
// this.Debug = true;
resultReady = true;
this.result = result;
Id = MaxId++;
}
/*
public AsyncReply<T> Then(Action<T> callback)
{
base.Then(new Action<object>(o => callback((T)o)));
return this;
}
public void Trigger(T result)
{
Trigger((object)result);
}
public Task<bool> MoveNext(CancellationToken cancellationToken)
{
throw new NotImplementedException();
}
public void Dispose()
{
}
public AsyncReply()
{
}
public new Task<T> Task
{
get
{
return base.Task.ContinueWith<T>((t) =>
{
#if NETSTANDARD
return (T)t.GetType().GetTypeInfo().GetProperty("Result").GetValue(t);
#else
return (T)t.GetType().GetProperty("Result").GetValue(t);
#endif
});
}
}
public T Current => throw new NotImplementedException();
public AsyncReply(T result)
: base(result)
{
}
*/
}
}