1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef BASE_THREADING_NON_THREAD_SAFE_IMPL_H_ 6 #define BASE_THREADING_NON_THREAD_SAFE_IMPL_H_ 7 #pragma once 8 9 #include "base/base_api.h" 10 #include "base/threading/thread_checker_impl.h" 11 12 namespace base { 13 14 // Full implementation of NonThreadSafe, for debug mode or for occasional 15 // temporary use in release mode e.g. when you need to CHECK on a thread 16 // bug that only occurs in the wild. 17 // 18 // Note: You should almost always use the NonThreadSafe class to get 19 // the right version of the class for your build configuration. 20 class BASE_API NonThreadSafeImpl { 21 public: 22 ~NonThreadSafeImpl(); 23 24 bool CalledOnValidThread() const; 25 26 protected: 27 // Changes the thread that is checked for in CalledOnValidThread. The next 28 // call to CalledOnValidThread will attach this class to a new thread. It is 29 // up to the NonThreadSafe derived class to decide to expose this or not. 30 // This may be useful when an object may be created on one thread and then 31 // used exclusively on another thread. 32 void DetachFromThread(); 33 34 private: 35 ThreadCheckerImpl thread_checker_; 36 }; 37 38 } // namespace base 39 40 #endif // BASE_THREADING_NON_THREAD_SAFE_IMPL_H_ 41