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Side by Side Diff: webrtc/base/refcount.h

Issue 1420043008: Create rtc::AtomicInt POD struct. (Closed) Base URL: https://chromium.googlesource.com/external/webrtc.git@master
Patch Set: intentional obliteration of the unintentional whitespace of doom Created 5 years, 1 month ago
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1 /* 1 /*
2 * Copyright 2011 The WebRTC Project Authors. All rights reserved. 2 * Copyright 2011 The WebRTC Project Authors. All rights reserved.
3 * 3 *
4 * Use of this source code is governed by a BSD-style license 4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source 5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found 6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may 7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree. 8 * be found in the AUTHORS file in the root of the source tree.
9 */ 9 */
10 10
(...skipping 11 matching lines...) Expand all
22 public: 22 public:
23 virtual int AddRef() const = 0; 23 virtual int AddRef() const = 0;
24 virtual int Release() const = 0; 24 virtual int Release() const = 0;
25 protected: 25 protected:
26 virtual ~RefCountInterface() {} 26 virtual ~RefCountInterface() {}
27 }; 27 };
28 28
29 template <class T> 29 template <class T>
30 class RefCountedObject : public T { 30 class RefCountedObject : public T {
31 public: 31 public:
32 RefCountedObject() : ref_count_(0) { 32 RefCountedObject() {}
33 }
34 33
35 template<typename P> 34 template <typename P>
36 explicit RefCountedObject(P p) : T(p), ref_count_(0) { 35 explicit RefCountedObject(P p)
37 } 36 : T(p) {}
38 37
39 template<typename P1, typename P2> 38 template <typename P1, typename P2>
40 RefCountedObject(P1 p1, P2 p2) : T(p1, p2), ref_count_(0) { 39 RefCountedObject(P1 p1, P2 p2)
41 } 40 : T(p1, p2) {}
42 41
43 template<typename P1, typename P2, typename P3> 42 template <typename P1, typename P2, typename P3>
44 RefCountedObject(P1 p1, P2 p2, P3 p3) : T(p1, p2, p3), ref_count_(0) { 43 RefCountedObject(P1 p1, P2 p2, P3 p3)
45 } 44 : T(p1, p2, p3) {}
46 45
47 template<typename P1, typename P2, typename P3, typename P4> 46 template <typename P1, typename P2, typename P3, typename P4>
48 RefCountedObject(P1 p1, P2 p2, P3 p3, P4 p4) 47 RefCountedObject(P1 p1, P2 p2, P3 p3, P4 p4)
49 : T(p1, p2, p3, p4), ref_count_(0) { 48 : T(p1, p2, p3, p4) {}
50 }
51 49
52 template<typename P1, typename P2, typename P3, typename P4, typename P5> 50 template <typename P1, typename P2, typename P3, typename P4, typename P5>
53 RefCountedObject(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5) 51 RefCountedObject(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5)
54 : T(p1, p2, p3, p4, p5), ref_count_(0) { 52 : T(p1, p2, p3, p4, p5) {}
55 }
56 53
57 template<typename P1, typename P2, typename P3, typename P4, typename P5, 54 template <typename P1,
58 typename P6> 55 typename P2,
56 typename P3,
57 typename P4,
58 typename P5,
59 typename P6>
59 RefCountedObject(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5, P6 p6) 60 RefCountedObject(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5, P6 p6)
60 : T(p1, p2, p3, p4, p5, p6), ref_count_(0) { 61 : T(p1, p2, p3, p4, p5, p6) {}
61 }
62 62
63 template<typename P1, typename P2, typename P3, typename P4, typename P5, 63 template <typename P1,
64 typename P6, typename P7> 64 typename P2,
65 typename P3,
66 typename P4,
67 typename P5,
68 typename P6,
69 typename P7>
65 RefCountedObject(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5, P6 p6, P7 p7) 70 RefCountedObject(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5, P6 p6, P7 p7)
66 : T(p1, p2, p3, p4, p5, p6, p7), ref_count_(0) { 71 : T(p1, p2, p3, p4, p5, p6, p7) {}
67 }
68 72
69 template<typename P1, typename P2, typename P3, typename P4, typename P5, 73 template <typename P1,
70 typename P6, typename P7, typename P8> 74 typename P2,
75 typename P3,
76 typename P4,
77 typename P5,
78 typename P6,
79 typename P7,
80 typename P8>
71 RefCountedObject(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5, P6 p6, P7 p7, P8 p8) 81 RefCountedObject(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5, P6 p6, P7 p7, P8 p8)
72 : T(p1, p2, p3, p4, p5, p6, p7, p8), ref_count_(0) { 82 : T(p1, p2, p3, p4, p5, p6, p7, p8) {}
73 }
74 83
75 template<typename P1, typename P2, typename P3, typename P4, typename P5, 84 template <typename P1,
76 typename P6, typename P7, typename P8, typename P9> 85 typename P2,
77 RefCountedObject( 86 typename P3,
78 P1 p1, P2 p2, P3 p3, P4 p4, P5 p5, P6 p6, P7 p7, P8 p8, P9 p9) 87 typename P4,
79 : T(p1, p2, p3, p4, p5, p6, p7, p8, p9), ref_count_(0) { 88 typename P5,
80 } 89 typename P6,
90 typename P7,
91 typename P8,
92 typename P9>
93 RefCountedObject(P1 p1,
94 P2 p2,
95 P3 p3,
96 P4 p4,
97 P5 p5,
98 P6 p6,
99 P7 p7,
100 P8 p8,
101 P9 p9)
102 : T(p1, p2, p3, p4, p5, p6, p7, p8, p9) {}
81 103
82 template<typename P1, typename P2, typename P3, typename P4, typename P5, 104 template <typename P1,
83 typename P6, typename P7, typename P8, typename P9, typename P10> 105 typename P2,
84 RefCountedObject( 106 typename P3,
85 P1 p1, P2 p2, P3 p3, P4 p4, P5 p5, P6 p6, P7 p7, P8 p8, P9 p9, P10 p10) 107 typename P4,
86 : T(p1, p2, p3, p4, p5, p6, p7, p8, p9, p10), ref_count_(0) { 108 typename P5,
87 } 109 typename P6,
110 typename P7,
111 typename P8,
112 typename P9,
113 typename P10>
114 RefCountedObject(P1 p1,
115 P2 p2,
116 P3 p3,
117 P4 p4,
118 P5 p5,
119 P6 p6,
120 P7 p7,
121 P8 p8,
122 P9 p9,
123 P10 p10)
124 : T(p1, p2, p3, p4, p5, p6, p7, p8, p9, p10) {}
88 125
89 template<typename P1, typename P2, typename P3, typename P4, typename P5, 126 template <typename P1,
90 typename P6, typename P7, typename P8, typename P9, typename P10, 127 typename P2,
91 typename P11> 128 typename P3,
92 RefCountedObject( 129 typename P4,
93 P1 p1, P2 p2, P3 p3, P4 p4, P5 p5, P6 p6, P7 p7, P8 p8, P9 p9, P10 p10, 130 typename P5,
94 P11 p11) 131 typename P6,
95 : T(p1, p2, p3, p4, p5, p6, p7, p8, p9, p10, p11), ref_count_(0) { 132 typename P7,
96 } 133 typename P8,
134 typename P9,
135 typename P10,
136 typename P11>
137 RefCountedObject(P1 p1,
138 P2 p2,
139 P3 p3,
140 P4 p4,
141 P5 p5,
142 P6 p6,
143 P7 p7,
144 P8 p8,
145 P9 p9,
146 P10 p10,
147 P11 p11)
148 : T(p1, p2, p3, p4, p5, p6, p7, p8, p9, p10, p11) {}
97 149
98 virtual int AddRef() const { 150 virtual int AddRef() const { return AtomicInt::Increment(&ref_count_); }
99 return AtomicOps::Increment(&ref_count_);
100 }
101 151
102 virtual int Release() const { 152 virtual int Release() const {
103 int count = AtomicOps::Decrement(&ref_count_); 153 int count = AtomicInt::Decrement(&ref_count_);
104 if (!count) { 154 if (!count) {
105 delete this; 155 delete this;
106 } 156 }
107 return count; 157 return count;
108 } 158 }
109 159
110 // Return whether the reference count is one. If the reference count is used 160 // Return whether the reference count is one. If the reference count is used
111 // in the conventional way, a reference count of 1 implies that the current 161 // in the conventional way, a reference count of 1 implies that the current
112 // thread owns the reference and no other thread shares it. This call 162 // thread owns the reference and no other thread shares it. This call
113 // performs the test for a reference count of one, and performs the memory 163 // performs the test for a reference count of one, and performs the memory
114 // barrier needed for the owning thread to act on the object, knowing that it 164 // barrier needed for the owning thread to act on the object, knowing that it
115 // has exclusive access to the object. 165 // has exclusive access to the object.
116 virtual bool HasOneRef() const { 166 virtual bool HasOneRef() const {
117 return AtomicOps::AcquireLoad(&ref_count_) == 1; 167 return AtomicInt::AcquireLoad(&ref_count_) == 1;
118 } 168 }
119 169
120 protected: 170 protected:
121 virtual ~RefCountedObject() { 171 virtual ~RefCountedObject() {
122 } 172 }
123 173
124 mutable volatile int ref_count_; 174 mutable AtomicInt ref_count_;
125 }; 175 };
126 176
127 } // namespace rtc 177 } // namespace rtc
128 178
129 #endif // WEBRTC_BASE_REFCOUNT_H_ 179 #endif // WEBRTC_BASE_REFCOUNT_H_
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