1 // Copyright (c) 2012 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 8 #include "base/base_export.h" 9 #include "base/threading/thread_checker_impl.h" 10 11 namespace base { 12 13 // Full implementation of NonThreadSafe, for debug mode or for occasional 14 // temporary use in release mode e.g. when you need to CHECK on a thread 15 // bug that only occurs in the wild. 16 // 17 // Note: You should almost always use the NonThreadSafe class to get 18 // the right version of the class for your build configuration. 19 class BASE_EXPORT NonThreadSafeImpl { 20 public: 21 bool CalledOnValidThread() const; 22 23 protected: 24 ~NonThreadSafeImpl(); 25 26 // Changes the thread that is checked for in CalledOnValidThread. The next 27 // call to CalledOnValidThread will attach this class to a new thread. It is 28 // up to the NonThreadSafe derived class to decide to expose this or not. 29 // This may be useful when an object may be created on one thread and then 30 // used exclusively on another thread. 31 void DetachFromThread(); 32 33 private: 34 ThreadCheckerImpl thread_checker_; 35 }; 36 37 } // namespace base 38 39 #endif // BASE_THREADING_NON_THREAD_SAFE_IMPL_H_ 40