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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef PersistentNode_h | 5 #ifndef PersistentNode_h |
6 #define PersistentNode_h | 6 #define PersistentNode_h |
7 | 7 |
8 #include "platform/PlatformExport.h" | 8 #include "platform/PlatformExport.h" |
9 #include "platform/heap/ThreadState.h" | 9 #include "platform/heap/ThreadState.h" |
10 #include "wtf/Allocator.h" | 10 #include "wtf/Allocator.h" |
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162 #if DCHECK_IS_ON() | 162 #if DCHECK_IS_ON() |
163 int m_persistentCount; | 163 int m_persistentCount; |
164 #endif | 164 #endif |
165 }; | 165 }; |
166 | 166 |
167 class CrossThreadPersistentRegion final { | 167 class CrossThreadPersistentRegion final { |
168 USING_FAST_MALLOC(CrossThreadPersistentRegion); | 168 USING_FAST_MALLOC(CrossThreadPersistentRegion); |
169 | 169 |
170 public: | 170 public: |
171 CrossThreadPersistentRegion() | 171 CrossThreadPersistentRegion() |
172 : m_persistentRegion(wrapUnique(new PersistentRegion)) {} | 172 : m_persistentRegion(WTF::wrapUnique(new PersistentRegion)) {} |
173 | 173 |
174 void allocatePersistentNode(PersistentNode*& persistentNode, | 174 void allocatePersistentNode(PersistentNode*& persistentNode, |
175 void* self, | 175 void* self, |
176 TraceCallback trace) { | 176 TraceCallback trace) { |
177 MutexLocker lock(m_mutex); | 177 MutexLocker lock(m_mutex); |
178 PersistentNode* node = | 178 PersistentNode* node = |
179 m_persistentRegion->allocatePersistentNode(self, trace); | 179 m_persistentRegion->allocatePersistentNode(self, trace); |
180 releaseStore(reinterpret_cast<void* volatile*>(&persistentNode), node); | 180 releaseStore(reinterpret_cast<void* volatile*>(&persistentNode), node); |
181 } | 181 } |
182 | 182 |
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245 // Recursive as prepareForThreadStateTermination() clears a PersistentNode's | 245 // Recursive as prepareForThreadStateTermination() clears a PersistentNode's |
246 // associated Persistent<> -- it in turn freeing the PersistentNode. And both | 246 // associated Persistent<> -- it in turn freeing the PersistentNode. And both |
247 // CrossThreadPersistentRegion operations need a lock on the region before | 247 // CrossThreadPersistentRegion operations need a lock on the region before |
248 // mutating. | 248 // mutating. |
249 RecursiveMutex m_mutex; | 249 RecursiveMutex m_mutex; |
250 }; | 250 }; |
251 | 251 |
252 } // namespace blink | 252 } // namespace blink |
253 | 253 |
254 #endif | 254 #endif |
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