1 // Copyright (c) 2011 Google Inc. All rights reserved. 2 // 3 // Redistribution and use in source and binary forms, with or without 4 // modification, are permitted provided that the following conditions are 5 // met: 6 // 7 // * Redistributions of source code must retain the above copyright 8 // notice, this list of conditions and the following disclaimer. 9 // * Redistributions in binary form must reproduce the above 10 // copyright notice, this list of conditions and the following disclaimer 11 // in the documentation and/or other materials provided with the 12 // distribution. 13 // * Neither the name of Google Inc. nor the name Chromium Embedded 14 // Framework nor the names of its contributors may be used to endorse 15 // or promote products derived from this software without specific prior 16 // written permission. 17 // 18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 30 // Do not include this header file directly. Use base/cef_thread_checker.h 31 // instead. 32 33 #ifndef CEF_INCLUDE_BASE_INTERNAL_THREAD_CHECKER_IMPL_H_ 34 #define CEF_INCLUDE_BASE_INTERNAL_THREAD_CHECKER_IMPL_H_ 35 36 #include "include/base/cef_lock.h" 37 #include "include/base/cef_platform_thread.h" 38 39 namespace base { 40 namespace cef_internal { 41 42 // Real implementation of ThreadChecker, for use in debug mode, or 43 // for temporary use in release mode (e.g. to CHECK on a threading issue 44 // seen only in the wild). 45 // 46 // Note: You should almost always use the ThreadChecker class to get the 47 // right version for your build configuration. 48 class ThreadCheckerImpl { 49 public: 50 ThreadCheckerImpl(); 51 ~ThreadCheckerImpl(); 52 53 bool CalledOnValidThread() const; 54 55 // Changes the thread that is checked for in CalledOnValidThread. This may 56 // be useful when an object may be created on one thread and then used 57 // exclusively on another thread. 58 void DetachFromThread(); 59 60 private: 61 void EnsureThreadIdAssigned() const; 62 63 mutable base::Lock lock_; 64 // This is mutable so that CalledOnValidThread can set it. 65 // It's guarded by |lock_|. 66 mutable PlatformThreadRef valid_thread_id_; 67 }; 68 69 } // namespace cef_internal 70 } // namespace base 71 72 #endif // CEF_INCLUDE_BASE_INTERNAL_THREAD_CHECKER_IMPL_H_ 73