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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| /* | ||
| * SPDX-FileCopyrightText: 2024-2024 CSSlayer <[email protected]> | ||
| * | ||
| * SPDX-License-Identifier: LGPL-2.1-or-later | ||
| * | ||
| */ | ||
| #include "workerthread.h" | ||
| #include <condition_variable> | ||
| #include <fcitx-utils/eventdispatcher.h> | ||
| #include <memory> | ||
| #include <mutex> | ||
| #include <thread> | ||
|
|
||
| WorkerThread::WorkerThread(fcitx::EventDispatcher &dispatcher) | ||
| : dispatcher_(dispatcher), thread_(&WorkerThread::runThread, this) {} | ||
|
|
||
| WorkerThread::~WorkerThread() { | ||
| { | ||
| std::lock_guard<std::mutex> lock(mutex_); | ||
| exit_ = true; | ||
| condition_.notify_one(); | ||
| } | ||
| if (thread_.joinable()) { | ||
| thread_.join(); | ||
| } | ||
| } | ||
|
|
||
| std::unique_ptr<TaskToken> | ||
| WorkerThread::addTaskImpl(std::function<void()> task, | ||
| std::function<void()> onDone) { | ||
| auto token = std::make_unique<TaskToken>(); | ||
| std::lock_guard<std::mutex> lock(mutex_); | ||
| queue_.push({.task = std::move(task), | ||
| .callback = std::move(onDone), | ||
| .context = token->watch()}); | ||
| condition_.notify_one(); | ||
| return token; | ||
| } | ||
|
|
||
| void WorkerThread::run() { | ||
| while (true) { | ||
| Task task; | ||
| { | ||
| std::unique_lock lock(mutex_); | ||
| condition_.wait(lock, [this] { return exit_ || !queue_.empty(); }); | ||
| if (exit_) { | ||
| break; | ||
| } | ||
|
|
||
| task = std::move(queue_.front()); | ||
| queue_.pop(); | ||
| } | ||
| task.task(); | ||
| dispatcher_.scheduleWithContext(task.context, std::move(task.callback)); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,65 @@ | ||
| /* | ||
| * SPDX-FileCopyrightText: 2024-2024 CSSlayer <[email protected]> | ||
| * | ||
| * SPDX-License-Identifier: LGPL-2.1-or-later | ||
| * | ||
| */ | ||
| #ifndef _PINYIN_WORKERTHREAD_H_ | ||
| #define _PINYIN_WORKERTHREAD_H_ | ||
|
|
||
| #include <condition_variable> | ||
| #include <fcitx-utils/eventdispatcher.h> | ||
| #include <fcitx-utils/macros.h> | ||
| #include <fcitx-utils/trackableobject.h> | ||
| #include <functional> | ||
| #include <future> | ||
| #include <list> | ||
| #include <memory> | ||
| #include <mutex> | ||
| #include <queue> | ||
|
|
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| class TaskToken : public fcitx::TrackableObject<TaskToken> {}; | ||
|
|
||
| class WorkerThread { | ||
| public: | ||
| WorkerThread(fcitx::EventDispatcher &dispatcher); | ||
| ~WorkerThread(); | ||
|
|
||
| template <typename Ret, typename OnDone> | ||
| FCITX_NODISCARD std::unique_ptr<TaskToken> | ||
| addTask(std::packaged_task<Ret()> task, OnDone onDone) { | ||
| std::future<Ret> future = task.get_future(); | ||
| std::function<void()> taskFunction = | ||
| [task = std::make_shared<decltype(task)>( | ||
| std::move(task))]() mutable { (*task)(); }; | ||
| std::function<void()> callback = [onDone = std::move(onDone), | ||
| future = future.share()]() mutable { | ||
| onDone(future); | ||
| }; | ||
|
|
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| return addTaskImpl(std::move(taskFunction), std::move(callback)); | ||
| } | ||
|
|
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| private: | ||
| std::unique_ptr<TaskToken> addTaskImpl(std::function<void()> task, | ||
| std::function<void()> onDone); | ||
| static void runThread(WorkerThread *self) { self->run(); } | ||
| void run(); | ||
|
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| struct Task { | ||
| std::function<void()> task; | ||
| std::function<void()> callback; | ||
| fcitx::TrackableObjectReference<TaskToken> context; | ||
| }; | ||
|
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| fcitx::EventDispatcher &dispatcher_; | ||
| std::mutex mutex_; | ||
| std::queue<Task, std::list<Task>> queue_; | ||
| bool exit_ = false; | ||
| std::condition_variable condition_; | ||
|
|
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| // Must be the last member | ||
| std::thread thread_; | ||
| }; | ||
|
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| #endif |