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Side by Side Diff: third_party/WebKit/Source/wtf/allocator/PartitionAllocator.h

Issue 1881983003: Move PartitionAlloc related things into wtf/allocator. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 4 years, 8 months ago
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1 /* 1 /*
2 * Copyright (C) 2013 Google Inc. All rights reserved. 2 * Copyright (C) 2013 Google Inc. All rights reserved.
3 * 3 *
4 * Redistribution and use in source and binary forms, with or without 4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are 5 * modification, are permitted provided that the following conditions are
6 * met: 6 * met:
7 * 7 *
8 * * Redistributions of source code must retain the above copyright 8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer. 9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above 10 * * Redistributions in binary form must reproduce the above
(...skipping 19 matching lines...) Expand all
30 30
31 #ifndef WTF_PartitionAllocator_h 31 #ifndef WTF_PartitionAllocator_h
32 #define WTF_PartitionAllocator_h 32 #define WTF_PartitionAllocator_h
33 33
34 // This is the allocator that is used for allocations that are not on the 34 // This is the allocator that is used for allocations that are not on the
35 // traced, garbage collected heap. It uses FastMalloc for collections, 35 // traced, garbage collected heap. It uses FastMalloc for collections,
36 // but uses the partition allocator for the backing store of the collections. 36 // but uses the partition allocator for the backing store of the collections.
37 37
38 #include "wtf/Allocator.h" 38 #include "wtf/Allocator.h"
39 #include "wtf/Assertions.h" 39 #include "wtf/Assertions.h"
40 #include "wtf/PartitionAlloc.h" 40 #include "wtf/allocator/PartitionAlloc.h"
41 #include "wtf/Partitions.h" 41 #include "wtf/allocator/Partitions.h"
42 42
43 #include <string.h> 43 #include <string.h>
44 44
45 namespace WTF { 45 namespace WTF {
46 46
47 class PartitionAllocatorDummyVisitor; 47 class PartitionAllocatorDummyVisitor;
48 48
49 class WTF_EXPORT PartitionAllocator { 49 class WTF_EXPORT PartitionAllocator {
50 public: 50 public:
51 typedef PartitionAllocatorDummyVisitor Visitor; 51 typedef PartitionAllocatorDummyVisitor Visitor;
(...skipping 138 matching lines...) Expand 10 before | Expand all | Expand 10 after
190 public: 190 public:
191 template<typename T> inline bool isHeapObjectAlive(T obj) 191 template<typename T> inline bool isHeapObjectAlive(T obj)
192 { 192 {
193 ASSERT_NOT_REACHED(); 193 ASSERT_NOT_REACHED();
194 return false; 194 return false;
195 } 195 }
196 }; 196 };
197 197
198 // Specializations for heap profiling, so type profiling of |char| is possible 198 // Specializations for heap profiling, so type profiling of |char| is possible
199 // even in official builds (because |char| makes up a large portion of the heap. ) 199 // even in official builds (because |char| makes up a large portion of the heap. )
200 template <> WTF_EXPORT char* PartitionAllocator::allocateVectorBacking<char>(siz e_t size); 200 template <> WTF_EXPORT char* PartitionAllocator::allocateVectorBacking<char>(siz e_t);
201 template <> WTF_EXPORT char* PartitionAllocator::allocateExpandedVectorBacking<c har>(size_t size); 201 template <> WTF_EXPORT char* PartitionAllocator::allocateExpandedVectorBacking<c har>(size_t);
202 202
203 } // namespace WTF 203 } // namespace WTF
204 204
205 #define WTF_USE_ALLOCATOR(ClassName, Allocator) \ 205 #define WTF_USE_ALLOCATOR(ClassName, Allocator) \
206 public: \ 206 public: \
207 void* operator new(size_t size) \ 207 void* operator new(size_t size) \
208 { \ 208 { \
209 return Allocator::template malloc<void*, ClassName>(size, WTF_HEAP_PROFI LER_TYPE_NAME(ClassName)); \ 209 return Allocator::template malloc<void*, ClassName>(size, WTF_HEAP_PROFI LER_TYPE_NAME(ClassName)); \
210 } \ 210 } \
211 void operator delete(void* p) { Allocator::free(p); } \ 211 void operator delete(void* p) { Allocator::free(p); } \
212 void* operator new[](size_t size) { return Allocator::template newArray<Clas sName>(size); } \ 212 void* operator new[](size_t size) { return Allocator::template newArray<Clas sName>(size); } \
213 void operator delete[](void* p) { Allocator::deleteArray(p); } \ 213 void operator delete[](void* p) { Allocator::deleteArray(p); } \
214 void* operator new(size_t, NotNullTag, void* location) \ 214 void* operator new(size_t, NotNullTag, void* location) \
215 { \ 215 { \
216 ASSERT(location); \ 216 ASSERT(location); \
217 return location; \ 217 return location; \
218 } \ 218 } \
219 private: \ 219 private: \
220 typedef int __thisIsHereToForceASemicolonAfterThisMacro 220 typedef int __thisIsHereToForceASemicolonAfterThisMacro
221 221
222 using WTF::PartitionAllocator; 222 using WTF::PartitionAllocator;
223 223
224 #endif // WTF_PartitionAllocator_h 224 #endif // WTF_PartitionAllocator_h
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