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48 lines
1.2 KiB
C
48 lines
1.2 KiB
C
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// Copyright 2018 The Chromium 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 UTIL_RUN_LOOP_H_
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#define UTIL_RUN_LOOP_H_
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#include "base/macros.h"
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#include "util/task.h"
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#include <condition_variable>
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#include <mutex>
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#include <queue>
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class MsgLoop {
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public:
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MsgLoop();
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~MsgLoop();
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// Blocks until PostQuit() is called, processing work items posted via
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void Run();
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// Schedules Run() to exit, but will not happen until other outstanding tasks
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// complete. Can be called from any thread.
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void PostQuit();
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// Posts a work item to this queue. All items will be run on the thread from
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// which Run() was called. Can be called from any thread.
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void PostTask(Task task);
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// Run()s until the queue is empty. Should only be used (carefully) in tests.
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void RunUntilIdleForTesting();
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// Gets the MsgLoop for the thread from which it's called, or nullptr if
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// there's no MsgLoop for the current thread.
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static MsgLoop* Current();
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private:
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std::mutex queue_mutex_;
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std::queue<Task> task_queue_;
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std::condition_variable notifier_;
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bool should_quit_ = false;
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DISALLOW_COPY_AND_ASSIGN(MsgLoop);
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};
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#endif // UTIL_RUN_LOOP_H_
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