Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(1318)

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

Issue 1611343002: wtf reformat test Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: pydent Created 4 years, 11 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View unified diff | Download patch
OLDNEW
1 /* 1 /*
2 * Copyright (C) 2013 Google Inc. All rights reserved. 2 * Copyright (C) 2013 Google Inc. All rights reserved.
3 * Copyright (C) 2013 Samsung Electronics. All rights reserved. 3 * Copyright (C) 2013 Samsung Electronics. 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 are 6 * modification, are permitted provided that the following conditions are
7 * met: 7 * met:
8 * 8 *
9 * * Redistributions of source code must retain the above copyright 9 * * Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer. 10 * notice, this list of conditions and the following disclaimer.
(...skipping 27 matching lines...) Expand all
38 #include "wtf/Noncopyable.h" 38 #include "wtf/Noncopyable.h"
39 #if USE(LEAK_SANITIZER) 39 #if USE(LEAK_SANITIZER)
40 #include "wtf/AddressSanitizer.h" 40 #include "wtf/AddressSanitizer.h"
41 #include "wtf/TypeTraits.h" 41 #include "wtf/TypeTraits.h"
42 #endif 42 #endif
43 43
44 namespace WTF { 44 namespace WTF {
45 45
46 #if USE(LEAK_SANITIZER) 46 #if USE(LEAK_SANITIZER)
47 class LeakSanitizerDisabler { 47 class LeakSanitizerDisabler {
48 WTF_MAKE_NONCOPYABLE(LeakSanitizerDisabler); 48 WTF_MAKE_NONCOPYABLE(LeakSanitizerDisabler);
49 public:
50 LeakSanitizerDisabler()
51 {
52 __lsan_disable();
53 }
54 49
55 ~LeakSanitizerDisabler() 50 public:
56 { 51 LeakSanitizerDisabler() { __lsan_disable(); }
57 __lsan_enable(); 52
58 } 53 ~LeakSanitizerDisabler() { __lsan_enable(); }
59 }; 54 };
60 55
61 // WTF_INTERNAL_LEAK_SANITIZER_DISABLED_SCOPE: all allocations made in the 56 // WTF_INTERNAL_LEAK_SANITIZER_DISABLED_SCOPE: all allocations made in the
62 // current scope will be exempted from LSan consideration. Only to be 57 // current scope will be exempted from LSan consideration. Only to be
63 // used internal to wtf/, Blink should use LEAK_SANITIZER_DISABLED_SCOPE 58 // used internal to wtf/, Blink should use LEAK_SANITIZER_DISABLED_SCOPE
64 // elsewhere. 59 // elsewhere.
65 // 60 //
66 // TODO(sof): once layering rules allow wtf/ to make use of the Oilpan 61 // TODO(sof): once layering rules allow wtf/ to make use of the Oilpan
67 // infrastructure, remove this macro. 62 // infrastructure, remove this macro.
68 #define WTF_INTERNAL_LEAK_SANITIZER_DISABLED_SCOPE \ 63 #define WTF_INTERNAL_LEAK_SANITIZER_DISABLED_SCOPE \
69 WTF::LeakSanitizerDisabler leakSanitizerDisabler; static_cast<void>(0) 64 WTF::LeakSanitizerDisabler leakSanitizerDisabler; \
65 static_cast<void>(0)
70 66
71 // LEAK_SANITIZER_IGNORE_OBJECT(X): the heap object referenced by pointer X 67 // LEAK_SANITIZER_IGNORE_OBJECT(X): the heap object referenced by pointer X
72 // will be ignored by LSan. 68 // will be ignored by LSan.
73 // 69 //
74 // "Ignorance" means that LSan's reachability traversal is stopped short 70 // "Ignorance" means that LSan's reachability traversal is stopped short
75 // upon encountering an ignored memory chunk. Consequently, LSan will not 71 // upon encountering an ignored memory chunk. Consequently, LSan will not
76 // scan an ignored memory chunk for live, reachable pointers. However, should 72 // scan an ignored memory chunk for live, reachable pointers. However, should
77 // those embedded pointers be reachable by some other path, they will be 73 // those embedded pointers be reachable by some other path, they will be
78 // reported as leaking. 74 // reported as leaking.
79 #define LEAK_SANITIZER_IGNORE_OBJECT(X) __lsan_ignore_object(X) 75 #define LEAK_SANITIZER_IGNORE_OBJECT(X) __lsan_ignore_object(X)
80 76
81 // If the object pointed to by the static local is on the Oilpan heap, a strong 77 // If the object pointed to by the static local is on the Oilpan heap, a strong
82 // Persistent<> is created to keep the pointed-to heap object alive. This makes 78 // Persistent<> is created to keep the pointed-to heap object alive. This makes
83 // both the Persistent<> and the heap object _reachable_ by LeakSanitizer's leak 79 // both the Persistent<> and the heap object _reachable_ by LeakSanitizer's leak
84 // detection pass. We do not want these intentional leaks to be reported by LSan , 80 // detection pass. We do not want these intentional leaks to be reported by LSan ,
85 // hence the static local is registered with Oilpan 81 // hence the static local is registered with Oilpan
86 // (see RegisterStaticLocalReference<> below.) 82 // (see RegisterStaticLocalReference<> below.)
87 // 83 //
88 // Upon Blink shutdown, all the registered statics are released and a final roun d 84 // Upon Blink shutdown, all the registered statics are released and a final roun d
89 // of GCs are performed to sweep out their now-unreachable object graphs. The en d 85 // of GCs are performed to sweep out their now-unreachable object graphs. The en d
90 // result being a tidied heap that the LeakSanitizer can then scan to report rea l leaks. 86 // result being a tidied heap that the LeakSanitizer can then scan to report rea l leaks.
91 // 87 //
92 // The CanRegisterStaticLocalReference<> and RegisterStaticLocalReference<> temp lates 88 // The CanRegisterStaticLocalReference<> and RegisterStaticLocalReference<> temp lates
93 // arrange for this -- for a class type T, a registerStatic() implementation is 89 // arrange for this -- for a class type T, a registerStatic() implementation is
94 // provided if "T* T::registerAsStaticReference(T*)" is a method on T 90 // provided if "T* T::registerAsStaticReference(T*)" is a method on T
95 // (inherited or otherwise.) 91 // (inherited or otherwise.)
96 // 92 //
97 // An empty, trivial registerStatic() method is provided for all other class typ es T. 93 // An empty, trivial registerStatic() method is provided for all other class typ es T.
98 template<typename T> 94 template <typename T>
99 class CanRegisterStaticLocalReference { 95 class CanRegisterStaticLocalReference {
100 typedef char YesType; 96 typedef char YesType;
101 typedef struct NoType { 97 typedef struct NoType { char padding[8]; } NoType;
102 char padding[8];
103 } NoType;
104 98
105 // Check if class T has public method "T* registerAsStaticReference()". 99 // Check if class T has public method "T* registerAsStaticReference()".
106 template<typename V> static YesType checkHasRegisterAsStaticReferenceMethod( V* p, typename std::enable_if<IsSubclass<V, typename std::remove_pointer<decltyp e(p->registerAsStaticReference())>::type>::value>::type* = 0); 100 template <typename V>
107 template<typename V> static NoType checkHasRegisterAsStaticReferenceMethod(. ..); 101 static YesType checkHasRegisterAsStaticReferenceMethod(
102 V* p,
103 typename std::enable_if<IsSubclass<
104 V,
105 typename std::remove_pointer<decltype(
106 p->registerAsStaticReference())>::type>::value>::type* = 0);
107 template <typename V>
108 static NoType checkHasRegisterAsStaticReferenceMethod(...);
108 109
109 public: 110 public:
110 static const bool value = sizeof(YesType) + sizeof(T) == sizeof(checkHasRegi sterAsStaticReferenceMethod<T>(nullptr)) + sizeof(T); 111 static const bool value =
112 sizeof(YesType) + sizeof(T) ==
113 sizeof(checkHasRegisterAsStaticReferenceMethod<T>(nullptr)) + sizeof(T);
111 }; 114 };
112 115
113 template<typename T, bool = CanRegisterStaticLocalReference<T>::value> 116 template <typename T, bool = CanRegisterStaticLocalReference<T>::value>
114 class RegisterStaticLocalReference { 117 class RegisterStaticLocalReference {
115 public: 118 public:
116 static T* registerStatic(T* ptr) 119 static T* registerStatic(T* ptr) { return ptr; }
117 {
118 return ptr;
119 }
120 }; 120 };
121 121
122 template<typename T> 122 template <typename T>
123 class RegisterStaticLocalReference<T, true> { 123 class RegisterStaticLocalReference<T, true> {
124 public: 124 public:
125 static T* registerStatic(T* ptr) 125 static T* registerStatic(T* ptr) {
126 { 126 return static_cast<T*>(ptr->registerAsStaticReference());
127 return static_cast<T*>(ptr->registerAsStaticReference()); 127 }
128 }
129 }; 128 };
130 129
131 #define LEAK_SANITIZER_REGISTER_STATIC_LOCAL(Type, Object) WTF::RegisterStaticLo calReference<Type>::registerStatic(Object) 130 #define LEAK_SANITIZER_REGISTER_STATIC_LOCAL(Type, Object) \
131 WTF::RegisterStaticLocalReference<Type>::registerStatic(Object)
132 #else 132 #else
133 #define WTF_INTERNAL_LEAK_SANITIZER_DISABLED_SCOPE 133 #define WTF_INTERNAL_LEAK_SANITIZER_DISABLED_SCOPE
134 #define LEAK_SANITIZER_IGNORE_OBJECT 134 #define LEAK_SANITIZER_IGNORE_OBJECT
135 #define LEAK_SANITIZER_REGISTER_STATIC_LOCAL(Type, Object) Object 135 #define LEAK_SANITIZER_REGISTER_STATIC_LOCAL(Type, Object) Object
136 #endif // USE(LEAK_SANITIZER) 136 #endif // USE(LEAK_SANITIZER)
137 137
138 } // namespace WTF 138 } // namespace WTF
139 139
140 #endif // WTF_LeakAnnotations_h 140 #endif // WTF_LeakAnnotations_h
OLDNEW
« no previous file with comments | « third_party/WebKit/Source/wtf/IntegralTypedArrayBase.h ('k') | third_party/WebKit/Source/wtf/LinkedHashSet.h » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698