| 1 | // Copyright 2013 The Flutter Authors. All rights reserved. |
|---|---|
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #define FML_USED_ON_EMBEDDER |
| 6 | |
| 7 | #include "flutter/fml/task_runner.h" |
| 8 | #include "flutter/fml/memory/task_runner_checker.h" |
| 9 | |
| 10 | #include <utility> |
| 11 | |
| 12 | #include "flutter/fml/logging.h" |
| 13 | #include "flutter/fml/message_loop.h" |
| 14 | #include "flutter/fml/message_loop_impl.h" |
| 15 | #include "flutter/fml/message_loop_task_queues.h" |
| 16 | |
| 17 | namespace fml { |
| 18 | |
| 19 | TaskRunner::TaskRunner(fml::RefPtr<MessageLoopImpl> loop) |
| 20 | : loop_(std::move(loop)) {} |
| 21 | |
| 22 | TaskRunner::~TaskRunner() = default; |
| 23 | |
| 24 | void TaskRunner::PostTask(const fml::closure& task) { |
| 25 | loop_->PostTask(task, target_time: fml::TimePoint::Now()); |
| 26 | } |
| 27 | |
| 28 | void TaskRunner::PostTaskForTime(const fml::closure& task, |
| 29 | fml::TimePoint target_time) { |
| 30 | loop_->PostTask(task, target_time); |
| 31 | } |
| 32 | |
| 33 | void TaskRunner::PostDelayedTask(const fml::closure& task, |
| 34 | fml::TimeDelta delay) { |
| 35 | loop_->PostTask(task, target_time: fml::TimePoint::Now() + delay); |
| 36 | } |
| 37 | |
| 38 | TaskQueueId TaskRunner::GetTaskQueueId() { |
| 39 | FML_DCHECK(loop_); |
| 40 | return loop_->GetTaskQueueId(); |
| 41 | } |
| 42 | |
| 43 | bool TaskRunner::RunsTasksOnCurrentThread() { |
| 44 | if (!fml::MessageLoop::IsInitializedForCurrentThread()) { |
| 45 | return false; |
| 46 | } |
| 47 | |
| 48 | const auto current_queue_id = MessageLoop::GetCurrentTaskQueueId(); |
| 49 | const auto loop_queue_id = loop_->GetTaskQueueId(); |
| 50 | |
| 51 | return TaskRunnerChecker::RunsOnTheSameThread(queue_a: current_queue_id, |
| 52 | queue_b: loop_queue_id); |
| 53 | } |
| 54 | |
| 55 | void TaskRunner::RunNowOrPostTask(const fml::RefPtr<fml::TaskRunner>& runner, |
| 56 | const fml::closure& task) { |
| 57 | FML_DCHECK(runner); |
| 58 | if (runner->RunsTasksOnCurrentThread()) { |
| 59 | task(); |
| 60 | } else { |
| 61 | runner->PostTask(task); |
| 62 | } |
| 63 | } |
| 64 | |
| 65 | } // namespace fml |
| 66 |