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Side by Side Diff: third_party/WebKit/Source/wtf/ArrayBufferContents.h

Issue 1776943002: Register ArrayBufferContents' adjustAmountOfMemory in V8Initializer::initialize (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 4 years, 9 months ago
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1 /* 1 /*
2 * Copyright (C) 2009 Apple Inc. All rights reserved. 2 * Copyright (C) 2009 Apple Inc. All rights reserved.
3 * Copyright (C) 2013 Google Inc. All rights reserved. 3 * Copyright (C) 2013 Google Inc. All rights reserved.
4 * 4 *
5 * Redistribution and use in source and binary forms, with or without 5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions 6 * modification, are permitted provided that the following conditions
7 * are met: 7 * are met:
8 * 1. Redistributions of source code must retain the above copyright 8 * 1. 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 * 2. Redistributions in binary form must reproduce the above copyright 10 * 2. Redistributions in binary form must reproduce the above copyright
(...skipping 11 matching lines...) Expand all
22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */ 25 */
26 26
27 #ifndef ArrayBufferContents_h 27 #ifndef ArrayBufferContents_h
28 #define ArrayBufferContents_h 28 #define ArrayBufferContents_h
29 29
30 #include "wtf/Allocator.h" 30 #include "wtf/Allocator.h"
31 #include "wtf/Assertions.h" 31 #include "wtf/Assertions.h"
32 #include "wtf/MainThread.h"
32 #include "wtf/Noncopyable.h" 33 #include "wtf/Noncopyable.h"
33 #include "wtf/RefPtr.h" 34 #include "wtf/RefPtr.h"
34 #include "wtf/ThreadSafeRefCounted.h" 35 #include "wtf/ThreadSafeRefCounted.h"
35 #include "wtf/WTF.h" 36 #include "wtf/WTF.h"
36 #include "wtf/WTFExport.h" 37 #include "wtf/WTFExport.h"
37 38
38 namespace WTF { 39 namespace WTF {
39 40
41 typedef void(*AdjustAmountOfExternalAllocatedMemoryFunction)(int size);
42
40 class WTF_EXPORT ArrayBufferContents { 43 class WTF_EXPORT ArrayBufferContents {
41 WTF_MAKE_NONCOPYABLE(ArrayBufferContents); 44 WTF_MAKE_NONCOPYABLE(ArrayBufferContents);
42 DISALLOW_NEW_EXCEPT_PLACEMENT_NEW(); 45 DISALLOW_NEW_EXCEPT_PLACEMENT_NEW();
43 public: 46 public:
44 enum InitializationPolicy { 47 enum InitializationPolicy {
45 ZeroInitialize, 48 ZeroInitialize,
46 DontInitialize 49 DontInitialize
47 }; 50 };
48 51
49 enum SharingType { 52 enum SharingType {
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69 unsigned sizeInBytes() const { return m_holder ? m_holder->sizeInBytes() : 0 ; } 72 unsigned sizeInBytes() const { return m_holder ? m_holder->sizeInBytes() : 0 ; }
70 bool isShared() const { return m_holder ? m_holder->isShared() : false; } 73 bool isShared() const { return m_holder ? m_holder->isShared() : false; }
71 74
72 void transfer(ArrayBufferContents& other); 75 void transfer(ArrayBufferContents& other);
73 void shareWith(ArrayBufferContents& other); 76 void shareWith(ArrayBufferContents& other);
74 void copyTo(ArrayBufferContents& other); 77 void copyTo(ArrayBufferContents& other);
75 78
76 static void allocateMemory(size_t, InitializationPolicy, void*&); 79 static void allocateMemory(size_t, InitializationPolicy, void*&);
77 static void allocateMemoryOrNull(size_t, InitializationPolicy, void*&); 80 static void allocateMemoryOrNull(size_t, InitializationPolicy, void*&);
78 static void freeMemory(void*, size_t); 81 static void freeMemory(void*, size_t);
79 static void setAdjustAmoutOfExternalAllocatedMemoryFunction(AdjustAmountOfEx ternalAllocatedMemoryFunction function) 82 static void initialize(AdjustAmountOfExternalAllocatedMemoryFunction functio n)
80 { 83 {
84 ASSERT(isMainThread());
81 ASSERT(!s_adjustAmountOfExternalAllocatedMemoryFunction); 85 ASSERT(!s_adjustAmountOfExternalAllocatedMemoryFunction);
82 s_adjustAmountOfExternalAllocatedMemoryFunction = function; 86 s_adjustAmountOfExternalAllocatedMemoryFunction = function;
83 } 87 }
84 88
85 private: 89 private:
86 static void allocateMemoryWithFlags(size_t, InitializationPolicy, int, void* &); 90 static void allocateMemoryWithFlags(size_t, InitializationPolicy, int, void* &);
87 class DataHolder : public ThreadSafeRefCounted<DataHolder> { 91 class DataHolder : public ThreadSafeRefCounted<DataHolder> {
88 WTF_MAKE_NONCOPYABLE(DataHolder); 92 WTF_MAKE_NONCOPYABLE(DataHolder);
89 public: 93 public:
90 DataHolder(); 94 DataHolder();
(...skipping 13 matching lines...) Expand all
104 SharingType m_isShared; 108 SharingType m_isShared;
105 }; 109 };
106 110
107 RefPtr<DataHolder> m_holder; 111 RefPtr<DataHolder> m_holder;
108 static AdjustAmountOfExternalAllocatedMemoryFunction s_adjustAmountOfExterna lAllocatedMemoryFunction; 112 static AdjustAmountOfExternalAllocatedMemoryFunction s_adjustAmountOfExterna lAllocatedMemoryFunction;
109 }; 113 };
110 114
111 } // namespace WTF 115 } // namespace WTF
112 116
113 #endif // ArrayBufferContents_h 117 #endif // ArrayBufferContents_h
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