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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 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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102 | 102 |
103 // Allocation policy for allocating in the C free store using malloc | 103 // Allocation policy for allocating in the C free store using malloc |
104 // and free. Used as the default policy for lists. | 104 // and free. Used as the default policy for lists. |
105 class FreeStoreAllocationPolicy { | 105 class FreeStoreAllocationPolicy { |
106 public: | 106 public: |
107 INLINE(void* New(size_t size)) { return Malloced::New(size); } | 107 INLINE(void* New(size_t size)) { return Malloced::New(size); } |
108 INLINE(static void Delete(void* p)) { Malloced::Delete(p); } | 108 INLINE(static void Delete(void* p)) { Malloced::Delete(p); } |
109 }; | 109 }; |
110 | 110 |
111 | 111 |
112 // Allocation policy for allocating in preallocated space. | |
113 // Used as an allocation policy for ScopeInfo when generating | |
114 // stack traces. | |
115 class PreallocatedStorage { | |
116 public: | |
117 explicit PreallocatedStorage(size_t size); | |
118 size_t size() { return size_; } | |
119 | |
120 private: | |
121 size_t size_; | |
122 PreallocatedStorage* previous_; | |
123 PreallocatedStorage* next_; | |
124 | |
125 void LinkTo(PreallocatedStorage* other); | |
126 void Unlink(); | |
127 | |
128 friend class Isolate; | |
129 | |
130 DISALLOW_IMPLICIT_CONSTRUCTORS(PreallocatedStorage); | |
131 }; | |
132 | |
133 | |
134 struct PreallocatedStorageAllocationPolicy { | |
135 INLINE(void* New(size_t size)); | |
136 INLINE(static void Delete(void* ptr)); | |
137 }; | |
138 | |
139 | |
140 } } // namespace v8::internal | 112 } } // namespace v8::internal |
141 | 113 |
142 #endif // V8_ALLOCATION_H_ | 114 #endif // V8_ALLOCATION_H_ |
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