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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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170 }; | 170 }; |
171 | 171 |
172 | 172 |
173 // The ZoneAllocationPolicy is used to specialize generic data | 173 // The ZoneAllocationPolicy is used to specialize generic data |
174 // structures to allocate themselves and their elements in the Zone. | 174 // structures to allocate themselves and their elements in the Zone. |
175 struct ZoneAllocationPolicy { | 175 struct ZoneAllocationPolicy { |
176 public: | 176 public: |
177 explicit ZoneAllocationPolicy(Zone* zone) : zone_(zone) { } | 177 explicit ZoneAllocationPolicy(Zone* zone) : zone_(zone) { } |
178 INLINE(void* New(size_t size)); | 178 INLINE(void* New(size_t size)); |
179 INLINE(static void Delete(void *pointer)) { } | 179 INLINE(static void Delete(void *pointer)) { } |
180 Zone* zone() { return zone_; } | |
181 | 180 |
182 private: | 181 private: |
183 Zone* zone_; | 182 Zone* zone_; |
184 }; | 183 }; |
185 | 184 |
186 | 185 |
187 // ZoneLists are growable lists with constant-time access to the | 186 // ZoneLists are growable lists with constant-time access to the |
188 // elements. The list itself and all its elements are allocated in the | 187 // elements. The list itself and all its elements are allocated in the |
189 // Zone. ZoneLists cannot be deleted individually; you can delete all | 188 // Zone. ZoneLists cannot be deleted individually; you can delete all |
190 // objects in the Zone by calling Zone::DeleteAll(). | 189 // objects in the Zone by calling Zone::DeleteAll(). |
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240 | 239 |
241 // A zone splay tree. The config type parameter encapsulates the | 240 // A zone splay tree. The config type parameter encapsulates the |
242 // different configurations of a concrete splay tree (see splay-tree.h). | 241 // different configurations of a concrete splay tree (see splay-tree.h). |
243 // The tree itself and all its elements are allocated in the Zone. | 242 // The tree itself and all its elements are allocated in the Zone. |
244 template <typename Config> | 243 template <typename Config> |
245 class ZoneSplayTree: public SplayTree<Config, ZoneAllocationPolicy> { | 244 class ZoneSplayTree: public SplayTree<Config, ZoneAllocationPolicy> { |
246 public: | 245 public: |
247 explicit ZoneSplayTree(Zone* zone) | 246 explicit ZoneSplayTree(Zone* zone) |
248 : SplayTree<Config, ZoneAllocationPolicy>(ZoneAllocationPolicy(zone)) {} | 247 : SplayTree<Config, ZoneAllocationPolicy>(ZoneAllocationPolicy(zone)) {} |
249 ~ZoneSplayTree(); | 248 ~ZoneSplayTree(); |
250 | |
251 INLINE(void* operator new(size_t size, Zone* zone)); | |
252 }; | 249 }; |
253 | 250 |
254 | 251 |
255 typedef TemplateHashMapImpl<ZoneAllocationPolicy> ZoneHashMap; | 252 typedef TemplateHashMapImpl<ZoneAllocationPolicy> ZoneHashMap; |
256 | 253 |
257 } } // namespace v8::internal | 254 } } // namespace v8::internal |
258 | 255 |
259 #endif // V8_ZONE_H_ | 256 #endif // V8_ZONE_H_ |
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