thestig@chromium.org
6d216bd249
Review URL: http://codereview.chromium.org/43148 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@11590 0039d316-1c4b-4281-b951-d872f2087c98
53 linhas
1.2 KiB
C++
53 linhas
1.2 KiB
C++
// Copyright (c) 2006-2008 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_NON_THREAD_SAFE_H__
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#define BASE_NON_THREAD_SAFE_H__
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#include "base/platform_thread.h"
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// A helper class used to help verify that methods of a class are
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// called from the same thread. One can inherit from this class and use
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// CalledOnValidThread() to verify.
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//
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// This is intended to be used with classes that appear to be thread safe, but
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// aren't. For example, a service or a singleton like the preferences system.
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//
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// Example:
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// class MyClass : public NonThreadSafe {
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// public:
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// void Foo() {
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// DCHECK(CalledOnValidThread());
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// ... (do stuff) ...
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// }
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// }
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//
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// In Release mode, CalledOnValidThread will always return true.
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//
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#ifndef NDEBUG
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class NonThreadSafe {
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public:
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NonThreadSafe();
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~NonThreadSafe();
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bool CalledOnValidThread() const;
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private:
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PlatformThreadId valid_thread_id_;
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};
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#else
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// Do nothing in release mode.
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class NonThreadSafe {
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public:
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NonThreadSafe() {}
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~NonThreadSafe() {}
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bool CalledOnValidThread() const {
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return true;
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}
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};
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#endif // NDEBUG
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#endif // BASE_NON_THREAD_SAFE_H__
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