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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef SK_REF_CNT_EXT_DEBUG_H_ | 5 #ifndef SK_REF_CNT_EXT_DEBUG_H_ |
6 #define SK_REF_CNT_EXT_DEBUG_H_ | 6 #define SK_REF_CNT_EXT_DEBUG_H_ |
7 | 7 |
8 #ifdef SK_REF_CNT_EXT_RELEASE_H_ | 8 #ifdef SK_REF_CNT_EXT_RELEASE_H_ |
9 #error Only one SkRefCnt should be used. | 9 #error Only one SkRefCnt should be used. |
10 #endif | 10 #endif |
11 | 11 |
12 #include <atomic> | 12 #include <atomic> |
13 | 13 |
| 14 class SkRefCnt; |
| 15 |
| 16 namespace WTF { |
| 17 void adopted(const SkRefCnt*); |
| 18 void requireAdoption(const SkRefCnt*); |
| 19 } |
| 20 |
14 // Alternate implementation of SkRefCnt for Chromium debug builds | 21 // Alternate implementation of SkRefCnt for Chromium debug builds |
15 class SK_API SkRefCnt : public SkRefCntBase { | 22 class SK_API SkRefCnt : public SkRefCntBase { |
16 public: | 23 public: |
17 SkRefCnt(); | 24 SkRefCnt(); |
18 ~SkRefCnt() override; | 25 ~SkRefCnt() override; |
19 void ref() const { SkASSERT(flags_.load() != AdoptionRequired_Flag); SkRefCntB
ase::ref(); } | 26 void ref() const { SkASSERT(flags_.load() != AdoptionRequired_Flag); SkRefCntB
ase::ref(); } |
| 27 void deref() const { SkRefCntBase::unref(); } |
| 28 private: |
20 void adopted() const { flags_ |= Adopted_Flag; } | 29 void adopted() const { flags_ |= Adopted_Flag; } |
21 void requireAdoption() const { flags_ |= AdoptionRequired_Flag; } | 30 void requireAdoption() const { flags_ |= AdoptionRequired_Flag; } |
22 void deref() const { SkRefCntBase::unref(); } | |
23 private: | |
24 | 31 |
25 enum { | 32 enum { |
26 Adopted_Flag = 0x1, | 33 Adopted_Flag = 0x1, |
27 AdoptionRequired_Flag = 0x2, | 34 AdoptionRequired_Flag = 0x2, |
28 }; | 35 }; |
29 | 36 |
30 mutable std::atomic<int> flags_; | 37 mutable std::atomic<int> flags_; |
| 38 |
| 39 friend void WTF::adopted(const SkRefCnt*); |
| 40 friend void WTF::requireAdoption(const SkRefCnt*); |
31 }; | 41 }; |
32 | 42 |
33 inline SkRefCnt::SkRefCnt() : flags_(0) { } | 43 inline SkRefCnt::SkRefCnt() : flags_(0) { } |
34 | 44 |
35 inline SkRefCnt::~SkRefCnt() { } | 45 inline SkRefCnt::~SkRefCnt() { } |
36 | 46 |
37 // Bootstrap for Blink's WTF::RefPtr | 47 // Bootstrap for Blink's WTF::RefPtr |
38 | 48 |
39 namespace WTF { | 49 namespace WTF { |
40 inline void adopted(const SkRefCnt* object) { | 50 inline void adopted(const SkRefCnt* object) { |
41 if (!object) | 51 if (!object) |
42 return; | 52 return; |
43 object->adopted(); | 53 object->adopted(); |
44 } | 54 } |
45 inline void requireAdoption(const SkRefCnt* object) { | 55 inline void requireAdoption(const SkRefCnt* object) { |
46 if (!object) | 56 if (!object) |
47 return; | 57 return; |
48 object->requireAdoption(); | 58 object->requireAdoption(); |
49 } | 59 } |
50 }; | 60 }; |
51 | 61 |
52 using WTF::adopted; | 62 using WTF::adopted; |
53 using WTF::requireAdoption; | 63 using WTF::requireAdoption; |
54 | 64 |
55 #endif | 65 #endif |
56 | 66 |
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