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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 // 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 V8_HEAP_HEAP_H_ | 5 #ifndef V8_HEAP_HEAP_H_ |
6 #define V8_HEAP_HEAP_H_ | 6 #define V8_HEAP_HEAP_H_ |
7 | 7 |
8 #include <cmath> | 8 #include <cmath> |
9 | 9 |
10 #include "src/allocation.h" | 10 #include "src/allocation.h" |
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559 // the young generation, we reserve 4 times the amount needed for a | 559 // the young generation, we reserve 4 times the amount needed for a |
560 // semi space. The young generation consists of two semi spaces and | 560 // semi space. The young generation consists of two semi spaces and |
561 // we reserve twice the amount needed for those in order to ensure | 561 // we reserve twice the amount needed for those in order to ensure |
562 // that new space can be aligned to its size. | 562 // that new space can be aligned to its size. |
563 intptr_t MaxReserved() { | 563 intptr_t MaxReserved() { |
564 return 4 * reserved_semispace_size_ + max_old_generation_size_; | 564 return 4 * reserved_semispace_size_ + max_old_generation_size_; |
565 } | 565 } |
566 int MaxSemiSpaceSize() { return max_semi_space_size_; } | 566 int MaxSemiSpaceSize() { return max_semi_space_size_; } |
567 int ReservedSemiSpaceSize() { return reserved_semispace_size_; } | 567 int ReservedSemiSpaceSize() { return reserved_semispace_size_; } |
568 int InitialSemiSpaceSize() { return initial_semispace_size_; } | 568 int InitialSemiSpaceSize() { return initial_semispace_size_; } |
| 569 int TargetSemiSpaceSize() { return target_semispace_size_; } |
569 intptr_t MaxOldGenerationSize() { return max_old_generation_size_; } | 570 intptr_t MaxOldGenerationSize() { return max_old_generation_size_; } |
570 intptr_t MaxExecutableSize() { return max_executable_size_; } | 571 intptr_t MaxExecutableSize() { return max_executable_size_; } |
571 | 572 |
572 // Returns the capacity of the heap in bytes w/o growing. Heap grows when | 573 // Returns the capacity of the heap in bytes w/o growing. Heap grows when |
573 // more spaces are needed until it reaches the limit. | 574 // more spaces are needed until it reaches the limit. |
574 intptr_t Capacity(); | 575 intptr_t Capacity(); |
575 | 576 |
576 // Returns the amount of memory currently committed for the heap. | 577 // Returns the amount of memory currently committed for the heap. |
577 intptr_t CommittedMemory(); | 578 intptr_t CommittedMemory(); |
578 | 579 |
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1461 // This can be calculated directly from a pointer to the heap; however, it is | 1462 // This can be calculated directly from a pointer to the heap; however, it is |
1462 // more expedient to get at the isolate directly from within Heap methods. | 1463 // more expedient to get at the isolate directly from within Heap methods. |
1463 Isolate* isolate_; | 1464 Isolate* isolate_; |
1464 | 1465 |
1465 Object* roots_[kRootListLength]; | 1466 Object* roots_[kRootListLength]; |
1466 | 1467 |
1467 size_t code_range_size_; | 1468 size_t code_range_size_; |
1468 int reserved_semispace_size_; | 1469 int reserved_semispace_size_; |
1469 int max_semi_space_size_; | 1470 int max_semi_space_size_; |
1470 int initial_semispace_size_; | 1471 int initial_semispace_size_; |
| 1472 int target_semispace_size_; |
1471 intptr_t max_old_generation_size_; | 1473 intptr_t max_old_generation_size_; |
1472 intptr_t max_executable_size_; | 1474 intptr_t max_executable_size_; |
1473 intptr_t maximum_committed_; | 1475 intptr_t maximum_committed_; |
1474 | 1476 |
1475 // For keeping track of how much data has survived | 1477 // For keeping track of how much data has survived |
1476 // scavenge since last new space expansion. | 1478 // scavenge since last new space expansion. |
1477 int survived_since_last_expansion_; | 1479 int survived_since_last_expansion_; |
1478 | 1480 |
1479 // For keeping track on when to flush RegExp code. | 1481 // For keeping track on when to flush RegExp code. |
1480 int sweep_generation_; | 1482 int sweep_generation_; |
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2540 DisallowHeapAllocation no_allocation; // i.e. no gc allowed. | 2542 DisallowHeapAllocation no_allocation; // i.e. no gc allowed. |
2541 | 2543 |
2542 private: | 2544 private: |
2543 DISALLOW_IMPLICIT_CONSTRUCTORS(PathTracer); | 2545 DISALLOW_IMPLICIT_CONSTRUCTORS(PathTracer); |
2544 }; | 2546 }; |
2545 #endif // DEBUG | 2547 #endif // DEBUG |
2546 } | 2548 } |
2547 } // namespace v8::internal | 2549 } // namespace v8::internal |
2548 | 2550 |
2549 #endif // V8_HEAP_HEAP_H_ | 2551 #endif // V8_HEAP_HEAP_H_ |
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