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493cfd9601
* Define thread priority enum and set thread priority for all threads in Engine * Split out the thread data and the thread data set operator
75 lines
1.8 KiB
C++
75 lines
1.8 KiB
C++
// Copyright 2013 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef FLUTTER_FML_THREAD_H_
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#define FLUTTER_FML_THREAD_H_
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#include <atomic>
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#include <functional>
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#include <memory>
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#include <string>
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#include <thread>
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#include "flutter/fml/macros.h"
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#include "flutter/fml/task_runner.h"
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namespace fml {
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class Thread {
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public:
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/// Valid values for priority of Thread.
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enum class ThreadPriority : int {
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/// Suitable for threads that shouldn't disrupt high priority work.
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BACKGROUND,
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/// Default priority level.
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NORMAL,
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/// Suitable for threads which generate data for the display.
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DISPLAY,
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/// Suitable for thread which raster data.
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RASTER,
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};
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/// The ThreadConfig is the thread info include thread name, thread priority.
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struct ThreadConfig {
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ThreadConfig(const std::string& name, ThreadPriority priority)
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: name(name), priority(priority) {}
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explicit ThreadConfig(const std::string& name)
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: ThreadConfig(name, ThreadPriority::NORMAL) {}
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ThreadConfig() : ThreadConfig("", ThreadPriority::NORMAL) {}
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std::string name;
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ThreadPriority priority;
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};
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using ThreadConfigSetter = std::function<void(const ThreadConfig&)>;
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explicit Thread(const std::string& name = "");
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explicit Thread(const ThreadConfigSetter& setter,
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const ThreadConfig& config = ThreadConfig());
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~Thread();
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fml::RefPtr<fml::TaskRunner> GetTaskRunner() const;
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void Join();
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static void SetCurrentThreadName(const ThreadConfig& config);
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private:
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std::unique_ptr<std::thread> thread_;
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fml::RefPtr<fml::TaskRunner> task_runner_;
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std::atomic_bool joined_;
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FML_DISALLOW_COPY_AND_ASSIGN(Thread);
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};
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} // namespace fml
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#endif // FLUTTER_FML_THREAD_H_
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