Re: Ada-WinRT bindings - Alpha release

["Dan'l Miller" <optikos@verizon.net>]

On Friday, April 13, 2018 at 4:05:41 AM UTC-5, alby....@gmail.com wrote:
> Please feel free to raise issues/question/recommendations for improvements either
> via GitHub or on his forum

After taking a look at the current Ada-WinRT analogue of C#'s await, I posted your second issue, which is really just brainstorming food for thought
1) regarding how C#'s Roslyn compiler actually implements await on WinRT-component async methods in processor-native machine code or on .NET async methods in the CLR
and
2) regarding how C++/WinRT proposes 2 different solutions—
2.1) one a Microsoft-esque mixin-interface for taming the callback alternative design (that you mention on Ada-WinRT's README.md)
and
2.2 the other a solution based on C++'s emerging co-routine feature.

In addition to the 2 you list on the README.md (and in addition to any designs resulting from cross-pollination from the food-for-thought above), wouldn't there be a 3rd Ada task-based solution as well?  Especially one where the task (as costly-to-spawn kernel thread) is not elaborated/spawned at the time of invocation of the async function, but rather where a configurable-sized task pool is where the-operation-has-now-completed handlers all execute for the plethora of hundreds and hundreds of async functions throughout the WinRT-component framework.  Indeed, perhaps there exist multiple such pools:  one for Category-A async operations, another for Category-B async operations, and so forth, whatever the categorization scheme therein would be.  (As the world marches onward to many-core processors and ccNUMA processor-confederations, each Category there could be thought of as a processor core, or, in an processor confederation, a whole processor.)

Does anyone know of a general-purpose Ada library boilerplate analogue of the C# await for async subroutines?  (I.e., not a custom-crafted design for each async invocation)  (And i.e., not waiting years for Ada co-routines in Ada2020, if ever)  E.g., analogous to the mixing-interface implements<MyAsync, IAsyncAction, IAsyncInfo> in the blog posting https://kennykerr.ca/2018/03/09/cppwinrt-producing-async-objects