| // 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_async/dispatcher.h" |
| #include "pw_async/task.h" |
| #include "pw_containers/intrusive_list.h" |
| |
| namespace pw::async::test::backend { |
| |
| class NativeFakeDispatcher final { |
| public: |
| explicit NativeFakeDispatcher(Dispatcher& test_dispatcher); |
| ~NativeFakeDispatcher(); |
| |
| void RequestStop(); |
| |
| void Post(Task& task); |
| |
| void PostAfter(Task& task, chrono::SystemClock::duration delay); |
| |
| void PostAt(Task& task, chrono::SystemClock::time_point time); |
| |
| bool Cancel(Task& task); |
| |
| bool RunUntilIdle(); |
| |
| bool RunUntil(chrono::SystemClock::time_point end_time); |
| |
| bool RunFor(chrono::SystemClock::duration duration); |
| |
| chrono::SystemClock::time_point now() { return now_; } |
| |
| private: |
| // Insert |task| into task_queue_ maintaining its min-heap property, keyed by |
| // |time_due|. |
| void PostTaskInternal(::pw::async::backend::NativeTask& task, |
| chrono::SystemClock::time_point time_due); |
| |
| // Dequeue and run each task that is due. |
| // Returns true iff any tasks were invoked during the run. |
| bool ExecuteDueTasks(); |
| |
| // Dequeue each task and run each TaskFunction with a PW_STATUS_CANCELLED |
| // status. |
| // Returns true iff any tasks were invoked during the run. |
| bool DrainTaskQueue(); |
| |
| Dispatcher& dispatcher_; |
| bool stop_requested_ = false; |
| |
| // A priority queue of scheduled tasks sorted by earliest due times first. |
| IntrusiveList<::pw::async::backend::NativeTask> task_queue_; |
| |
| // Tracks the current time as viewed by the test dispatcher. |
| chrono::SystemClock::time_point now_; |
| }; |
| |
| } // namespace pw::async::test::backend |