[/
 / Copyright (c) 2003-2025 Christopher M. Kohlhoff (chris at kohlhoff dot com)
 /
 / Distributed under the Boost Software License, Version 1.0. (See accompanying
 / file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 /]

[section:model Asynchronous Model]

This section presents a high-level overview of the asynchronous model at the
core of the Asio library. This model enshrines asynchronous operations as the
fundamental building block of asynchronous composition, but in a way that
decouples them from the composition mechanism. The asynchronous operations in
Asio support callbacks, futures (both eager and lazy), fibers, coroutines, and
approaches yet to be imagined. This allows the application programmer to select
an approach based on appropriate trade-offs.

* [link asio.overview.model.async_ops Asynchronous Operations]
* [link asio.overview.model.async_agents Asynchronous Agents]
* [link asio.overview.model.associators Associated Characteristics and Associators]
* [link asio.overview.model.child_agents Child Agents]
* [link asio.overview.model.executors Executors]
* [link asio.overview.model.allocators Allocators]
* [link asio.overview.model.cancellation Cancellation]
* [link asio.overview.model.completion_tokens Completion Tokens]
* [link asio.overview.model.library_elements Supporting Library Elements]
* [link asio.overview.model.higher_levels Higher Level Abstractions]

[include model/async_ops.qbk]
[include model/async_agents.qbk]
[include model/associators.qbk]
[include model/child_agents.qbk]
[include model/executors.qbk]
[include model/allocators.qbk]
[include model/cancellation.qbk]
[include model/completion_tokens.qbk]
[include model/library_elements.qbk]
[include model/higher_levels.qbk]

[endsect]