/// <summary>
/// Creates future from specified .Net task.
/// Completion of this task will await with specified awaiter.
/// </summary>
/// <param name="awaiter">A strategy of await task completion.</param>
/// <param name="task">A task which should be transformed to future.</param>
/// <typeparam name="T">Type of task result.</typeparam>
/// <returns>A future which wraps task computation results.</returns>
public static Future <T> From <T>(IAwaiter awaiter, Task <T> task)
{
var promise = new Promise <T>();
var awaitableTask = AwaitableTask <T> .Acquire(task, promise);
awaiter.Await(awaitableTask, awaitableTask);
return(promise.Future);
}
private static void Release(AwaitableTask <T> awaitableTask)
{
awaitableTask._task = null;
awaitableTask._promise = null;
if (Pool.Count < PoolSize)
{
Pool.Push(awaitableTask);
}
}
public static AwaitableTask <T> Acquire(Task <T> task, Promise <T> promise)
{
if (!Pool.TryPop(out var awaitableTask))
{
awaitableTask = new AwaitableTask <T>();
}
awaitableTask._task = task;
awaitableTask._promise = promise;
return(awaitableTask);
}