/// <summary>
/// The given Action will be performed when the task succeeds.
/// </summary>
/// <param name="action">The action to perform.</param>
/// <returns>This task.</returns>
public static Task WhenSucceeded(this Task task, Action <Task> action)
{
return(task.WhenEnded(t => { if (t.IsSucceeded)
{
action(t);
}
}));
}
/// <summary>
/// The given Action will be performed when the task fails.
/// </summary>
/// <param name="action">The action to perform.</param>
/// <param name="target">The DispatcherBase to perform the action on.</param>
/// <returns>This task.</returns>
public static Task WhenFailed(this Task task, Action <Task> action, DispatcherBase target)
{
return(task.WhenEnded(t => { if (t.IsFailed)
{
action(t);
}
}, target));
}
/// <summary>
/// The given Action will be performed when the task fails.
/// </summary>
/// <param name="action">The action to perform.</param>
/// <returns>This task.</returns>
public static Task WhenFailed(this Task task, Action action)
{
return(task.WhenEnded(t => { if (t.IsFailed)
{
action();
}
}));
}
/// <summary>
/// Performs the given Func sequential for each element in the enumerable.
/// </summary>
/// <param name="action">The Func to perform for each element.</param>
/// <param name="target">The TaskDistributor instance on which the operation should perform.</param>
/// <returns>IEnumerable of created tasks.</returns>
public static IEnumerable <Task <TResult> > SequentialForEach <TResult, T>(this IEnumerable <T> that, Func <T, TResult> action, TaskDistributor target)
{
var result = new List <Task <TResult> >();
Task lastTask = null;
foreach (var element in that)
{
var tmp = element;
var task = Task.Create(() => action(tmp));
if (lastTask == null)
{
task.Run(target);
}
else
{
lastTask.WhenEnded(() => task.Run(target));
}
lastTask = task;
result.Add(task);
}
return(result);
}
/// <summary>
/// The given Action will be performed when the task succeeds.
/// </summary>
/// <param name="action">The action to perform.</param>
/// <param name="target">The DispatcherBase to perform the action on.</param>
/// <returns>This task.</returns>
public static Task WhenSucceeded(this Task task, Action <Task> action, DispatcherBase actiontargetTarget)
{
Action <Task> perform = t =>
{
if (actiontargetTarget == null)
{
action(t);
}
else
{
actiontargetTarget.Dispatch(() => { if (t.IsSucceeded)
{
action(t);
}
});
}
};
return(task.WhenEnded(t => { if (t.IsSucceeded)
{
perform(t);
}
}, null));
}
/// <summary>
/// The given Action will be performed when the task succeeds.
/// </summary>
/// <param name="action">The action to perform.</param>
/// <param name="target">The DispatcherBase to perform the action on.</param>
/// <returns>This task.</returns>
public static Task <T> WhenSucceeded <T>(this Task <T> task, Action <Task <T> > action, DispatcherBase target)
{
Action <Task <T> > perform = t =>
{
if (target == null)
{
action(t);
}
else
{
target.Dispatch(() => { if (t.IsSucceeded)
{
action(t);
}
});
}
};
return(task.WhenEnded <T>(t => { if (t.IsSucceeded)
{
perform(t);
}
}, null));
}
/// <summary>
/// The given Action will be performed when the task ends.
/// </summary>
/// <param name="action">The action to perform.</param>
/// <returns>This task.</returns>
public static Task WhenEnded(this Task task, Action <Task> action)
{
return(task.WhenEnded(t => action(t), null));
}
/// <summary>
/// The given Action will be performed when the task ends.
/// </summary>
/// <param name="action">The action to perform.</param>
/// <returns>This task.</returns>
public static Task WhenEnded(this Task task, Action action)
{
return(task.WhenEnded(t => action()));
}
/// <summary>
/// The given Action will be performed when the task ends.
/// </summary>
/// <param name="action">The action to perform.</param>
/// <returns>This task.</returns>
public static Task <T> WhenEnded <T>(this Task <T> task, Action <Task <T> > action)
{
return(task.WhenEnded <T>(action, null));
}
/// <summary>
/// The given Action will be performed when the task ends.
/// </summary>
/// <param name="action">The action to perform.</param>
/// <returns>This task.</returns>
public static Task <T> WhenEnded <T>(this Task <T> task, Action action)
{
return(task.WhenEnded <T>(t => action(), null));
}
