1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/security/sandbox/chromium/base/threading/thread_checker_impl.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,43 @@
1.4 +// Copyright (c) 2011 The Chromium Authors. All rights reserved.
1.5 +// Use of this source code is governed by a BSD-style license that can be
1.6 +// found in the LICENSE file.
1.7 +
1.8 +#ifndef BASE_THREADING_THREAD_CHECKER_IMPL_H_
1.9 +#define BASE_THREADING_THREAD_CHECKER_IMPL_H_
1.10 +
1.11 +#include "base/base_export.h"
1.12 +#include "base/synchronization/lock.h"
1.13 +#include "base/threading/platform_thread.h"
1.14 +
1.15 +namespace base {
1.16 +
1.17 +// Real implementation of ThreadChecker, for use in debug mode, or
1.18 +// for temporary use in release mode (e.g. to CHECK on a threading issue
1.19 +// seen only in the wild).
1.20 +//
1.21 +// Note: You should almost always use the ThreadChecker class to get the
1.22 +// right version for your build configuration.
1.23 +class BASE_EXPORT ThreadCheckerImpl {
1.24 + public:
1.25 + ThreadCheckerImpl();
1.26 + ~ThreadCheckerImpl();
1.27 +
1.28 + bool CalledOnValidThread() const;
1.29 +
1.30 + // Changes the thread that is checked for in CalledOnValidThread. This may
1.31 + // be useful when an object may be created on one thread and then used
1.32 + // exclusively on another thread.
1.33 + void DetachFromThread();
1.34 +
1.35 + private:
1.36 + void EnsureThreadIdAssigned() const;
1.37 +
1.38 + mutable base::Lock lock_;
1.39 + // This is mutable so that CalledOnValidThread can set it.
1.40 + // It's guarded by |lock_|.
1.41 + mutable PlatformThreadId valid_thread_id_;
1.42 +};
1.43 +
1.44 +} // namespace base
1.45 +
1.46 +#endif // BASE_THREADING_THREAD_CHECKER_IMPL_H_
