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61 lines
1.8 KiB
C
61 lines
1.8 KiB
C
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// Copyright 2013 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 BASE_TEST_TEST_IO_THREAD_H_
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#define BASE_TEST_TEST_IO_THREAD_H_
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#include "base/callback_forward.h"
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#include "base/compiler_specific.h"
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#include "base/macros.h"
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#include "base/memory/ref_counted.h"
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#include "base/task_runner.h"
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#include "base/threading/thread.h"
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#include "base/time/time.h"
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namespace base {
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// Create and run an IO thread with a MessageLoop, and
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// making the MessageLoop accessible from its client.
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// It also provides some ideomatic API like PostTaskAndWait().
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//
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// This API is not thread-safe:
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// - Start()/Stop() should only be called from the main (creation) thread.
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// - PostTask()/message_loop()/task_runner() are also safe to call from the
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// underlying thread itself (to post tasks from other threads: get the
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// task_runner() from the main thread first, it is then safe to pass _it_
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// around).
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class TestIOThread {
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public:
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enum Mode { kAutoStart, kManualStart };
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explicit TestIOThread(Mode mode);
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// Stops the I/O thread if necessary.
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~TestIOThread();
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// After Stop(), Start() may be called again to start a new I/O thread.
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// Stop() may be called even when the I/O thread is not started.
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void Start();
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void Stop();
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// Post |task| to the IO thread.
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void PostTask(const Location& from_here, base::OnceClosure task);
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base::MessageLoopForIO* message_loop() {
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return static_cast<base::MessageLoopForIO*>(io_thread_.message_loop());
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}
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scoped_refptr<SingleThreadTaskRunner> task_runner() {
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return message_loop()->task_runner();
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}
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private:
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base::Thread io_thread_;
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bool io_thread_started_;
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DISALLOW_COPY_AND_ASSIGN(TestIOThread);
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};
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} // namespace base
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#endif // BASE_TEST_TEST_IO_THREAD_H_
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