44 lines
1.3 KiB
C
44 lines
1.3 KiB
C
|
// Copyright (c) 2011 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_THREAD_CHECKER_IMPL_H_
|
||
|
|
#define BASE_THREADING_THREAD_CHECKER_IMPL_H_
|
||
|
|
|
||
|
|
#include "base/base_export.h"
|
||
|
|
#include "base/synchronization/lock.h"
|
||
|
|
#include "base/threading/platform_thread.h"
|
||
|
|
|
||
|
|
namespace base {
|
||
|
|
|
||
|
|
// Real implementation of ThreadChecker, for use in debug mode, or
|
||
|
|
// for temporary use in release mode (e.g. to CHECK on a threading issue
|
||
|
|
// seen only in the wild).
|
||
|
|
//
|
||
|
|
// Note: You should almost always use the ThreadChecker class to get the
|
||
|
|
// right version for your build configuration.
|
||
|
|
class BASE_EXPORT ThreadCheckerImpl {
|
||
|
|
public:
|
||
|
|
ThreadCheckerImpl();
|
||
|
|
~ThreadCheckerImpl();
|
||
|
|
|
||
|
|
bool CalledOnValidThread() const;
|
||
|
|
|
||
|
|
// Changes the thread that is checked for in CalledOnValidThread. This may
|
||
|
|
// be useful when an object may be created on one thread and then used
|
||
|
|
// exclusively on another thread.
|
||
|
|
void DetachFromThread();
|
||
|
|
|
||
|
|
private:
|
||
|
|
void EnsureThreadIdAssigned() const;
|
||
|
|
|
||
|
|
mutable base::Lock lock_;
|
||
|
|
// This is mutable so that CalledOnValidThread can set it.
|
||
|
|
// It's guarded by |lock_|.
|
||
|
|
mutable PlatformThreadId valid_thread_id_;
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace base
|
||
|
|
|
||
|
|
#endif // BASE_THREADING_THREAD_CHECKER_IMPL_H_
|