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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 RUNTIME_VM_PAGES_H_ | 5 #ifndef RUNTIME_VM_PAGES_H_ |
6 #define RUNTIME_VM_PAGES_H_ | 6 #define RUNTIME_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/lockers.h" | 10 #include "vm/lockers.h" |
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53 return Utils::RoundUp(sizeof(HeapPage), OS::kMaxPreferredCodeAlignment); | 53 return Utils::RoundUp(sizeof(HeapPage), OS::kMaxPreferredCodeAlignment); |
54 } | 54 } |
55 | 55 |
56 private: | 56 private: |
57 void set_object_end(uword val) { | 57 void set_object_end(uword val) { |
58 ASSERT((val & kObjectAlignmentMask) == kOldObjectAlignmentOffset); | 58 ASSERT((val & kObjectAlignmentMask) == kOldObjectAlignmentOffset); |
59 object_end_ = val; | 59 object_end_ = val; |
60 } | 60 } |
61 | 61 |
62 // These return NULL on OOM. | 62 // These return NULL on OOM. |
63 static HeapPage* Initialize(VirtualMemory* memory, PageType type); | 63 static HeapPage* Initialize(VirtualMemory* memory, |
64 static HeapPage* Allocate(intptr_t size_in_words, PageType type); | 64 PageType type, |
| 65 const char* name); |
| 66 static HeapPage* Allocate(intptr_t size_in_words, |
| 67 PageType type, |
| 68 const char* name); |
65 | 69 |
66 // Deallocate the virtual memory backing this page. The page pointer to this | 70 // Deallocate the virtual memory backing this page. The page pointer to this |
67 // page becomes immediately inaccessible. | 71 // page becomes immediately inaccessible. |
68 void Deallocate(); | 72 void Deallocate(); |
69 | 73 |
70 VirtualMemory* memory_; | 74 VirtualMemory* memory_; |
71 HeapPage* next_; | 75 HeapPage* next_; |
72 uword object_end_; | 76 uword object_end_; |
73 PageType type_; | 77 PageType type_; |
74 | 78 |
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428 friend class HeapIterationScope; | 432 friend class HeapIterationScope; |
429 friend class PageSpaceController; | 433 friend class PageSpaceController; |
430 friend class SweeperTask; | 434 friend class SweeperTask; |
431 | 435 |
432 DISALLOW_IMPLICIT_CONSTRUCTORS(PageSpace); | 436 DISALLOW_IMPLICIT_CONSTRUCTORS(PageSpace); |
433 }; | 437 }; |
434 | 438 |
435 } // namespace dart | 439 } // namespace dart |
436 | 440 |
437 #endif // RUNTIME_VM_PAGES_H_ | 441 #endif // RUNTIME_VM_PAGES_H_ |
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