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_THREAD_ID_NAME_MANAGER_H_ 6 #define BASE_THREADING_THREAD_ID_NAME_MANAGER_H_ 7 8 #include <map> 9 #include <string> 10 11 #include "base/base_export.h" 12 #include "base/macros.h" 13 #include "base/synchronization/lock.h" 14 #include "base/threading/platform_thread.h" 15 16 namespace base { 17 18 template <typename T> 19 struct DefaultSingletonTraits; 20 21 class BASE_EXPORT ThreadIdNameManager { 22 public: 23 static ThreadIdNameManager* GetInstance(); 24 25 static const char* GetDefaultInternedString(); 26 27 // Register the mapping between a thread |id| and |handle|. 28 void RegisterThread(PlatformThreadHandle::Handle handle, PlatformThreadId id); 29 30 // Set the name for the given id. 31 void SetName(PlatformThreadId id, const std::string& name); 32 33 // Get the name for the given id. 34 const char* GetName(PlatformThreadId id); 35 36 // Remove the name for the given id. 37 void RemoveName(PlatformThreadHandle::Handle handle, PlatformThreadId id); 38 39 private: 40 friend struct DefaultSingletonTraits<ThreadIdNameManager>; 41 42 typedef std::map<PlatformThreadId, PlatformThreadHandle::Handle> 43 ThreadIdToHandleMap; 44 typedef std::map<PlatformThreadHandle::Handle, std::string*> 45 ThreadHandleToInternedNameMap; 46 typedef std::map<std::string, std::string*> NameToInternedNameMap; 47 48 ThreadIdNameManager(); 49 ~ThreadIdNameManager(); 50 51 // lock_ protects the name_to_interned_name_, thread_id_to_handle_ and 52 // thread_handle_to_interned_name_ maps. 53 Lock lock_; 54 55 NameToInternedNameMap name_to_interned_name_; 56 ThreadIdToHandleMap thread_id_to_handle_; 57 ThreadHandleToInternedNameMap thread_handle_to_interned_name_; 58 59 // Treat the main process specially as there is no PlatformThreadHandle. 60 std::string* main_process_name_; 61 PlatformThreadId main_process_id_; 62 63 DISALLOW_COPY_AND_ASSIGN(ThreadIdNameManager); 64 }; 65 66 } // namespace base 67 68 #endif // BASE_THREADING_THREAD_ID_NAME_MANAGER_H_ 69
