#if NET_4_0 || BOOTSTRAP_NET_4_0
// Future.cs
//
// Copyright (c) 2008 Jrmie "Garuma" Laval
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
//
using System;
namespace System.Threading.Tasks{
public class Task<TResult>: Task
{
TResult value;
static TaskFactory<TResult> factory = new TaskFactory<TResult> ();
Func<object, TResult> function;
object state;
public TResult Result {
get {
if (function != null)
Wait ();
return value;
}
internal set {
this.value = value;
}
}
public static new TaskFactory<TResult> Factory {
get {
return factory;
}
}
public Task (Func<TResult> function) : this (function, TaskCreationOptions.None)
{
}
public Task (Func<TResult> function, CancellationToken token)
: this ((o) => function (), null, token, TaskCreationOptions.None)
{
}
public Task (Func<TResult> function, TaskCreationOptions options)
: this ((o) => function (), null, CancellationToken.None, options)
{
}
public Task (Func<TResult> function, CancellationToken token, TaskCreationOptions options)
: this ((o) => function (), null, token, options)
{
}
public Task (Func<object, TResult> function, object state) : this (function, state, TaskCreationOptions.None)
{
}
public Task (Func<object, TResult> function, object state, CancellationToken token)
: this (function, state, token, TaskCreationOptions.None)
{
}
public Task (Func<object, TResult> function, object state, TaskCreationOptions options)
: this (function, state, CancellationToken.None, options)
{
}
public Task (Func<object, TResult> function, object state, CancellationToken token, TaskCreationOptions options)
: base (null, state, token, options)
{
this.function = function;
this.state = state;
}
internal override void InnerInvoke ()
{
if (function != null)
value = function (state);
function = null;
state = null;
}
public Task ContinueWith (Action<Task<TResult>> a)
{
return ContinueWith (a, TaskContinuationOptions.None);
}
public Task ContinueWith (Action<Task<TResult>> a, TaskContinuationOptions options)
{
return ContinueWith (a, CancellationToken.None, options, TaskScheduler.Current);
}
public Task ContinueWith (Action<Task<TResult>> a, CancellationToken token)
{
return ContinueWith (a, token, TaskContinuationOptions.None, TaskScheduler.Current);
}
public Task ContinueWith (Action<Task<TResult>> a, TaskScheduler scheduler)
{
return ContinueWith (a, CancellationToken.None, TaskContinuationOptions.None, scheduler);
}
public Task ContinueWith (Action<Task<TResult>> a, CancellationToken token,
TaskContinuationOptions options, TaskScheduler scheduler)
{
Task t = new Task ((o) => a ((Task<TResult>)o), this, token, GetCreationOptions (options));
ContinueWithCore (t, options, scheduler);
return t;
}
public Task<TNewResult> ContinueWith<TNewResult> (Func<Task<TResult>, TNewResult> a)
{
return ContinueWith<TNewResult> (a, TaskContinuationOptions.None);
}
public Task<TNewResult> ContinueWith<TNewResult> (Func<Task<TResult>, TNewResult> a, CancellationToken token)
{
return ContinueWith<TNewResult> (a, token, TaskContinuationOptions.None, TaskScheduler.Current);
}
public Task<TNewResult> ContinueWith<TNewResult> (Func<Task<TResult>, TNewResult> a, TaskContinuationOptions options)
{
return ContinueWith<TNewResult> (a, CancellationToken.None, options, TaskScheduler.Current);
}
public Task<TNewResult> ContinueWith<TNewResult> (Func<Task<TResult>, TNewResult> a, TaskScheduler scheduler)
{
return ContinueWith<TNewResult> (a, CancellationToken.None, TaskContinuationOptions.None, scheduler);
}
public Task<TNewResult> ContinueWith<TNewResult> (Func<Task<TResult>, TNewResult> a, CancellationToken token,
TaskContinuationOptions options,
TaskScheduler scheduler)
{
Task<TNewResult> t = new Task<TNewResult> ((o) => a ((Task<TResult>)o), this, token, GetCreationOptions (options));
ContinueWithCore (t, options, scheduler);
return t;
}
}
}
#endif
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