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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 "vm/freelist.h" | 8 #include "vm/freelist.h" |
9 #include "vm/globals.h" | 9 #include "vm/globals.h" |
10 #include "vm/ring_buffer.h" | 10 #include "vm/ring_buffer.h" |
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298 | 298 |
299 Monitor* tasks_lock() const { return tasks_lock_; } | 299 Monitor* tasks_lock() const { return tasks_lock_; } |
300 intptr_t tasks() const { return tasks_; } | 300 intptr_t tasks() const { return tasks_; } |
301 void set_tasks(intptr_t val) { | 301 void set_tasks(intptr_t val) { |
302 ASSERT(val >= 0); | 302 ASSERT(val >= 0); |
303 tasks_ = val; | 303 tasks_ = val; |
304 } | 304 } |
305 | 305 |
306 // Attempt to allocate from bump block rather than normal freelist. | 306 // Attempt to allocate from bump block rather than normal freelist. |
307 uword TryAllocateDataBump(intptr_t size, GrowthPolicy growth_policy); | 307 uword TryAllocateDataBump(intptr_t size, GrowthPolicy growth_policy); |
| 308 uword TryAllocateDataBumpLocked(intptr_t size, GrowthPolicy growth_policy); |
| 309 uword TryAllocatePromoLocked(intptr_t size, GrowthPolicy growth_policy); |
308 | 310 |
309 private: | 311 private: |
310 // Ids for time and data records in Heap::GCStats. | 312 // Ids for time and data records in Heap::GCStats. |
311 enum { | 313 enum { |
312 // Time | 314 // Time |
313 kMarkObjects = 0, | 315 kMarkObjects = 0, |
314 kResetFreeLists = 1, | 316 kResetFreeLists = 1, |
315 kSweepPages = 2, | 317 kSweepPages = 2, |
316 kSweepLargePages = 3, | 318 kSweepLargePages = 3, |
317 // Data | 319 // Data |
318 kGarbageRatio = 0, | 320 kGarbageRatio = 0, |
319 kGCTimeFraction = 1, | 321 kGCTimeFraction = 1, |
320 kPageGrowth = 2, | 322 kPageGrowth = 2, |
321 kAllowedGrowth = 3 | 323 kAllowedGrowth = 3 |
322 }; | 324 }; |
323 | 325 |
324 static const intptr_t kAllocatablePageSize = 64 * KB; | 326 static const intptr_t kAllocatablePageSize = 64 * KB; |
325 | 327 |
326 uword TryAllocateInternal(intptr_t size, | 328 uword TryAllocateInternal(intptr_t size, |
327 HeapPage::PageType type, | 329 HeapPage::PageType type, |
328 GrowthPolicy growth_policy, | 330 GrowthPolicy growth_policy, |
329 bool is_protected, | 331 bool is_protected, |
330 bool is_locked); | 332 bool is_locked); |
331 uword TryAllocateInFreshPage(intptr_t size, | 333 uword TryAllocateInFreshPage(intptr_t size, |
332 HeapPage::PageType type, | 334 HeapPage::PageType type, |
333 GrowthPolicy growth_policy, | 335 GrowthPolicy growth_policy, |
334 bool is_locked); | 336 bool is_locked); |
| 337 uword TryAllocateDataBumpInternal(intptr_t size, |
| 338 GrowthPolicy growth_policy, |
| 339 bool is_locked); |
335 HeapPage* AllocatePage(HeapPage::PageType type); | 340 HeapPage* AllocatePage(HeapPage::PageType type); |
336 void FreePage(HeapPage* page, HeapPage* previous_page); | 341 void FreePage(HeapPage* page, HeapPage* previous_page); |
337 HeapPage* AllocateLargePage(intptr_t size, HeapPage::PageType type); | 342 HeapPage* AllocateLargePage(intptr_t size, HeapPage::PageType type); |
338 void TruncateLargePage(HeapPage* page, intptr_t new_object_size_in_bytes); | 343 void TruncateLargePage(HeapPage* page, intptr_t new_object_size_in_bytes); |
339 void FreeLargePage(HeapPage* page, HeapPage* previous_page); | 344 void FreeLargePage(HeapPage* page, HeapPage* previous_page); |
340 void FreePages(HeapPage* pages); | 345 void FreePages(HeapPage* pages); |
341 HeapPage* NextPageAnySize(HeapPage* page) const { | 346 HeapPage* NextPageAnySize(HeapPage* page) const { |
342 ASSERT((pages_tail_ == NULL) || (pages_tail_->next() == NULL)); | 347 ASSERT((pages_tail_ == NULL) || (pages_tail_->next() == NULL)); |
343 ASSERT((exec_pages_tail_ == NULL) || (exec_pages_tail_->next() == NULL)); | 348 ASSERT((exec_pages_tail_ == NULL) || (exec_pages_tail_->next() == NULL)); |
344 if (page == pages_tail_) { | 349 if (page == pages_tail_) { |
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385 | 390 |
386 friend class PageSpaceController; | 391 friend class PageSpaceController; |
387 friend class SweeperTask; | 392 friend class SweeperTask; |
388 | 393 |
389 DISALLOW_IMPLICIT_CONSTRUCTORS(PageSpace); | 394 DISALLOW_IMPLICIT_CONSTRUCTORS(PageSpace); |
390 }; | 395 }; |
391 | 396 |
392 } // namespace dart | 397 } // namespace dart |
393 | 398 |
394 #endif // VM_PAGES_H_ | 399 #endif // VM_PAGES_H_ |
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