mirror of
https://github.com/klzgrad/naiveproxy.git
synced 2024-12-01 01:36:09 +03:00
44 lines
1.5 KiB
C
44 lines
1.5 KiB
C
|
// Copyright 2015 The Chromium Authors. All rights reserved.
|
||
|
|
// Use of this source code is governed by a BSD-style license that can be
|
||
|
|
// found in the LICENSE file.
|
||
|
|
|
||
|
|
#ifndef BASE_THREADING_SEQUENCED_TASK_RUNNER_HANDLE_H_
|
||
|
|
#define BASE_THREADING_SEQUENCED_TASK_RUNNER_HANDLE_H_
|
||
|
|
|
||
|
|
#include "base/compiler_specific.h"
|
||
|
|
#include "base/macros.h"
|
||
|
|
#include "base/memory/ref_counted.h"
|
||
|
|
#include "base/sequenced_task_runner.h"
|
||
|
|
|
||
|
|
namespace base {
|
||
|
|
|
||
|
|
class BASE_EXPORT SequencedTaskRunnerHandle {
|
||
|
|
public:
|
||
|
|
// Returns a SequencedTaskRunner which guarantees that posted tasks will only
|
||
|
|
// run after the current task is finished and will satisfy a SequenceChecker.
|
||
|
|
// It should only be called if IsSet() returns true (see the comment there for
|
||
|
|
// the requirements).
|
||
|
|
static scoped_refptr<SequencedTaskRunner> Get();
|
||
|
|
|
||
|
|
// Returns true if one of the following conditions is fulfilled:
|
||
|
|
// a) A SequencedTaskRunner has been assigned to the current thread by
|
||
|
|
// instantiating a SequencedTaskRunnerHandle.
|
||
|
|
// b) The current thread has a ThreadTaskRunnerHandle (which includes any
|
||
|
|
// thread that has a MessageLoop associated with it).
|
||
|
|
static bool IsSet();
|
||
|
|
|
||
|
|
// Binds |task_runner| to the current thread.
|
||
|
|
explicit SequencedTaskRunnerHandle(
|
||
|
|
scoped_refptr<SequencedTaskRunner> task_runner);
|
||
|
|
~SequencedTaskRunnerHandle();
|
||
|
|
|
||
|
|
private:
|
||
|
|
scoped_refptr<SequencedTaskRunner> task_runner_;
|
||
|
|
|
||
|
|
DISALLOW_COPY_AND_ASSIGN(SequencedTaskRunnerHandle);
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace base
|
||
|
|
|
||
|
|
#endif // BASE_THREADING_SEQUENCED_TASK_RUNNER_HANDLE_H_
|