mirror of https://github.com/electron/electron
39 lines
1.2 KiB
C++
39 lines
1.2 KiB
C++
// Copyright (c) 2018 GitHub, Inc.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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#ifndef ELECTRON_SHELL_BROWSER_MICROTASKS_RUNNER_H_
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#define ELECTRON_SHELL_BROWSER_MICROTASKS_RUNNER_H_
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#include "base/memory/raw_ptr.h"
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#include "base/task/task_observer.h"
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namespace v8 {
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class Isolate;
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}
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namespace electron {
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// Microtasks like promise resolution, are run at the end of the current
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// task. This class implements a task observer that runs tells v8 to run them.
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// Microtasks runner implementation is based on the EndOfTaskRunner in blink.
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// Node follows the kExplicit MicrotasksPolicy, and we do the same in browser
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// process. Hence, we need to have this task observer to flush the queued
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// microtasks.
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class MicrotasksRunner : public base::TaskObserver {
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public:
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explicit MicrotasksRunner(v8::Isolate* isolate);
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// base::TaskObserver
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void WillProcessTask(const base::PendingTask& pending_task,
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bool was_blocked_or_low_priority) override;
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void DidProcessTask(const base::PendingTask& pending_task) override;
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private:
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raw_ptr<v8::Isolate> isolate_;
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};
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} // namespace electron
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#endif // ELECTRON_SHELL_BROWSER_MICROTASKS_RUNNER_H_
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