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1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #ifndef VM_PAGES_H_ | 5 #ifndef VM_PAGES_H_ |
6 #define VM_PAGES_H_ | 6 #define VM_PAGES_H_ |
7 | 7 |
8 #include <map> | |
9 | |
10 #include "vm/freelist.h" | 8 #include "vm/freelist.h" |
11 #include "vm/globals.h" | 9 #include "vm/globals.h" |
12 #include "vm/virtual_memory.h" | 10 #include "vm/virtual_memory.h" |
13 | 11 |
14 namespace dart { | 12 namespace dart { |
15 | 13 |
16 // Forward declarations. | 14 // Forward declarations. |
17 class Heap; | 15 class Heap; |
18 class ObjectPointerVisitor; | 16 class ObjectPointerVisitor; |
19 | 17 |
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198 void SetGrowthControlState(bool state) { | 196 void SetGrowthControlState(bool state) { |
199 page_space_controller_.set_is_enabled(state); | 197 page_space_controller_.set_is_enabled(state); |
200 } | 198 } |
201 | 199 |
202 bool GrowthControlState() { | 200 bool GrowthControlState() { |
203 return page_space_controller_.is_enabled(); | 201 return page_space_controller_.is_enabled(); |
204 } | 202 } |
205 | 203 |
206 void WriteProtect(bool read_only); | 204 void WriteProtect(bool read_only); |
207 | 205 |
208 typedef std::map<RawObject*, void*> PeerTable; | |
209 | |
210 void SetPeer(RawObject* raw_obj, void* peer); | |
211 | |
212 void* GetPeer(RawObject* raw_obj); | |
213 | |
214 int64_t PeerCount() const; | |
215 | |
216 PeerTable* GetPeerTable() { return &peer_table_; } | |
217 | |
218 private: | 206 private: |
219 // Ids for time and data records in Heap::GCStats. | 207 // Ids for time and data records in Heap::GCStats. |
220 enum { | 208 enum { |
221 // Time | 209 // Time |
222 kMarkObjects = 0, | 210 kMarkObjects = 0, |
223 kResetFreeLists = 1, | 211 kResetFreeLists = 1, |
224 kSweepPages = 2, | 212 kSweepPages = 2, |
225 kSweepLargePages = 3, | 213 kSweepLargePages = 3, |
226 // Data | 214 // Data |
227 kGarbageRatio = 0, | 215 kGarbageRatio = 0, |
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246 } | 234 } |
247 | 235 |
248 FreeList freelist_[HeapPage::kNumPageTypes]; | 236 FreeList freelist_[HeapPage::kNumPageTypes]; |
249 | 237 |
250 Heap* heap_; | 238 Heap* heap_; |
251 | 239 |
252 HeapPage* pages_; | 240 HeapPage* pages_; |
253 HeapPage* pages_tail_; | 241 HeapPage* pages_tail_; |
254 HeapPage* large_pages_; | 242 HeapPage* large_pages_; |
255 | 243 |
256 PeerTable peer_table_; | |
257 | |
258 // Various sizes being tracked for this generation. | 244 // Various sizes being tracked for this generation. |
259 intptr_t max_capacity_; | 245 intptr_t max_capacity_; |
260 intptr_t capacity_; | 246 intptr_t capacity_; |
261 intptr_t in_use_; | 247 intptr_t in_use_; |
262 | 248 |
263 // Keep track whether a MarkSweep is currently running. | 249 // Keep track whether a MarkSweep is currently running. |
264 bool sweeping_; | 250 bool sweeping_; |
265 | 251 |
266 PageSpaceController page_space_controller_; | 252 PageSpaceController page_space_controller_; |
267 | 253 |
268 friend class PageSpaceController; | 254 friend class PageSpaceController; |
269 | 255 |
270 DISALLOW_IMPLICIT_CONSTRUCTORS(PageSpace); | 256 DISALLOW_IMPLICIT_CONSTRUCTORS(PageSpace); |
271 }; | 257 }; |
272 | 258 |
273 } // namespace dart | 259 } // namespace dart |
274 | 260 |
275 #endif // VM_PAGES_H_ | 261 #endif // VM_PAGES_H_ |
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