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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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_SPACES_H_ | 5 #ifndef V8_SPACES_H_ |
6 #define V8_SPACES_H_ | 6 #define V8_SPACES_H_ |
7 | 7 |
8 #include "src/allocation.h" | 8 #include "src/allocation.h" |
9 #include "src/base/atomicops.h" | 9 #include "src/base/atomicops.h" |
10 #include "src/hashmap.h" | 10 #include "src/hashmap.h" |
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978 // allocation list. | 978 // allocation list. |
979 List<FreeBlock> free_list_; | 979 List<FreeBlock> free_list_; |
980 // Memory is allocated from the free blocks on the allocation list. | 980 // Memory is allocated from the free blocks on the allocation list. |
981 // The block at current_allocation_block_index_ is the current block. | 981 // The block at current_allocation_block_index_ is the current block. |
982 List<FreeBlock> allocation_list_; | 982 List<FreeBlock> allocation_list_; |
983 int current_allocation_block_index_; | 983 int current_allocation_block_index_; |
984 | 984 |
985 // Finds a block on the allocation list that contains at least the | 985 // Finds a block on the allocation list that contains at least the |
986 // requested amount of memory. If none is found, sorts and merges | 986 // requested amount of memory. If none is found, sorts and merges |
987 // the existing free memory blocks, and searches again. | 987 // the existing free memory blocks, and searches again. |
988 // If none can be found, terminates V8 with FatalProcessOutOfMemory. | 988 // If none can be found, returns false. |
989 void GetNextAllocationBlock(size_t requested); | 989 bool GetNextAllocationBlock(size_t requested); |
990 // Compares the start addresses of two free blocks. | 990 // Compares the start addresses of two free blocks. |
991 static int CompareFreeBlockAddress(const FreeBlock* left, | 991 static int CompareFreeBlockAddress(const FreeBlock* left, |
992 const FreeBlock* right); | 992 const FreeBlock* right); |
993 | 993 |
994 DISALLOW_COPY_AND_ASSIGN(CodeRange); | 994 DISALLOW_COPY_AND_ASSIGN(CodeRange); |
995 }; | 995 }; |
996 | 996 |
997 | 997 |
998 class SkipList { | 998 class SkipList { |
999 public: | 999 public: |
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3000 } | 3000 } |
3001 // Must be small, since an iteration is used for lookup. | 3001 // Must be small, since an iteration is used for lookup. |
3002 static const int kMaxComments = 64; | 3002 static const int kMaxComments = 64; |
3003 }; | 3003 }; |
3004 #endif | 3004 #endif |
3005 | 3005 |
3006 | 3006 |
3007 } } // namespace v8::internal | 3007 } } // namespace v8::internal |
3008 | 3008 |
3009 #endif // V8_SPACES_H_ | 3009 #endif // V8_SPACES_H_ |
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