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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
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2 // Use of this source code is governed by a BSD-style license that can be |
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3 // found in the LICENSE file. |
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4 |
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5 #ifndef BASE_THREADING_THREAD_ID_NAME_MANAGER_H_ |
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6 #define BASE_THREADING_THREAD_ID_NAME_MANAGER_H_ |
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7 |
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8 #include <map> |
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9 #include <string> |
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10 |
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11 #include "base/base_export.h" |
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12 #include "base/basictypes.h" |
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13 #include "base/synchronization/lock.h" |
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14 #include "base/threading/platform_thread.h" |
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15 |
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16 template <typename T> struct DefaultSingletonTraits; |
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17 |
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18 namespace base { |
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19 |
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20 class BASE_EXPORT ThreadIdNameManager { |
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21 public: |
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22 static ThreadIdNameManager* GetInstance(); |
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23 |
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24 static const char* GetDefaultInternedString(); |
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25 |
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26 // Register the mapping between a thread |id| and |handle|. |
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27 void RegisterThread(PlatformThreadHandle::Handle handle, PlatformThreadId id); |
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28 |
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29 // Set the name for the given id. |
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30 void SetName(PlatformThreadId id, const char* name); |
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31 |
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32 // Get the name for the given id. |
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33 const char* GetName(PlatformThreadId id); |
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34 |
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35 // Remove the name for the given id. |
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36 void RemoveName(PlatformThreadHandle::Handle handle, PlatformThreadId id); |
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37 |
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38 private: |
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39 friend struct DefaultSingletonTraits<ThreadIdNameManager>; |
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40 |
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41 typedef std::map<PlatformThreadId, PlatformThreadHandle::Handle> |
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42 ThreadIdToHandleMap; |
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43 typedef std::map<PlatformThreadHandle::Handle, std::string*> |
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44 ThreadHandleToInternedNameMap; |
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45 typedef std::map<std::string, std::string*> NameToInternedNameMap; |
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46 |
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47 ThreadIdNameManager(); |
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48 ~ThreadIdNameManager(); |
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49 |
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50 // lock_ protects the name_to_interned_name_, thread_id_to_handle_ and |
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51 // thread_handle_to_interned_name_ maps. |
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52 Lock lock_; |
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53 |
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54 NameToInternedNameMap name_to_interned_name_; |
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55 ThreadIdToHandleMap thread_id_to_handle_; |
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56 ThreadHandleToInternedNameMap thread_handle_to_interned_name_; |
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57 |
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58 // Treat the main process specially as there is no PlatformThreadHandle. |
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59 std::string* main_process_name_; |
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60 PlatformThreadId main_process_id_; |
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61 |
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62 DISALLOW_COPY_AND_ASSIGN(ThreadIdNameManager); |
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63 }; |
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64 |
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65 } // namespace base |
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66 |
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67 #endif // BASE_THREADING_THREAD_ID_NAME_MANAGER_H_ |