| // Copyright 2023 The Pigweed Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| // use this file except in compliance with the License. You may obtain a copy of |
| // the License at |
| // |
| // https://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| // License for the specific language governing permissions and limitations under |
| // the License. |
| #pragma once |
| |
| #include "pw_async2/dispatcher_base.h" |
| #include "pw_sync/timed_thread_notification.h" |
| |
| namespace pw::async2 { |
| |
| // Implementor's note: |
| // |
| // This class defines the "basic" backend for the ``Dispatcher`` facade. |
| // |
| // All public and private methods here are necessary when implementing a |
| // ``Dispatcher`` backend. The private methods are invoked via the |
| // ``DispatcherImpl` via CRTP. |
| // |
| // The ``Dispatcher`` type here is publicly exposed as |
| // ``pw::async2::Dispatcher``. Any additional backend-specific public methods |
| // should include a ``Native`` prefix to indicate that they are |
| // platform-specific extensions and are not portable to other ``pw::async2`` |
| // backends. |
| class Dispatcher final : public DispatcherImpl<Dispatcher> { |
| public: |
| Dispatcher() = default; |
| Dispatcher(Dispatcher&) = delete; |
| Dispatcher(Dispatcher&&) = delete; |
| Dispatcher& operator=(Dispatcher&) = delete; |
| Dispatcher& operator=(Dispatcher&&) = delete; |
| ~Dispatcher() final { Deregister(); } |
| |
| // NOTE: there are no public methods here because the public interface of |
| // ``Dispatcher`` is defined in ``DispatcherImpl``. |
| // |
| // Any additional public methods added here (or in another ``Dispatcher`` |
| // backend) would be backend-specific and should be clearly marked with a |
| // ``...Native`` suffix. |
| private: |
| void DoWake() final { notify_.release(); } |
| Poll<> DoRunUntilStalled(Task* task); |
| void DoRunToCompletion(Task* task); |
| friend class DispatcherImpl<Dispatcher>; |
| |
| pw::sync::TimedThreadNotification notify_; |
| }; |
| |
| } // namespace pw::async2 |