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