| OLD | NEW |
| 1 /* | 1 /* |
| 2 * Copyright 2006 The Android Open Source Project | 2 * Copyright 2006 The Android Open Source Project |
| 3 * | 3 * |
| 4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
| 5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
| 6 */ | 6 */ |
| 7 | 7 |
| 8 #ifndef SkRefCnt_DEFINED | 8 #ifndef SkRefCnt_DEFINED |
| 9 #define SkRefCnt_DEFINED | 9 #define SkRefCnt_DEFINED |
| 10 | 10 |
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| 94 if (1 == fRefCnt.fetch_add(-1, std::memory_order_acq_rel)) { | 94 if (1 == fRefCnt.fetch_add(-1, std::memory_order_acq_rel)) { |
| 95 // Like unique(), the acquire is only needed on success, to make sur
e | 95 // Like unique(), the acquire is only needed on success, to make sur
e |
| 96 // code in internal_dispose() doesn't happen before the decrement. | 96 // code in internal_dispose() doesn't happen before the decrement. |
| 97 this->internal_dispose(); | 97 this->internal_dispose(); |
| 98 } | 98 } |
| 99 } | 99 } |
| 100 | 100 |
| 101 protected: | 101 protected: |
| 102 /** | 102 /** |
| 103 * Allow subclasses to call this if they've overridden internal_dispose | 103 * Allow subclasses to call this if they've overridden internal_dispose |
| 104 * so they can reset fRefCnt before the destructor is called. Should only | 104 * so they can reset fRefCnt before the destructor is called or if they |
| 105 * be called right before calling through to inherited internal_dispose() | 105 * choose not to call the destructor (e.g. using a free list). |
| 106 * or before calling the destructor. | |
| 107 */ | 106 */ |
| 108 void internal_dispose_restore_refcnt_to_1() const { | 107 void internal_dispose_restore_refcnt_to_1() const { |
| 109 #ifdef SK_DEBUG | |
| 110 SkASSERT(0 == getRefCnt()); | 108 SkASSERT(0 == getRefCnt()); |
| 111 fRefCnt.store(1, std::memory_order_relaxed); | 109 fRefCnt.store(1, std::memory_order_relaxed); |
| 112 #endif | |
| 113 } | 110 } |
| 114 | 111 |
| 115 private: | 112 private: |
| 116 /** | 113 /** |
| 117 * Called when the ref count goes to 0. | 114 * Called when the ref count goes to 0. |
| 118 */ | 115 */ |
| 119 virtual void internal_dispose() const { | 116 virtual void internal_dispose() const { |
| 120 this->internal_dispose_restore_refcnt_to_1(); | 117 this->internal_dispose_restore_refcnt_to_1(); |
| 121 delete this; | 118 delete this; |
| 122 } | 119 } |
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| 460 * | 457 * |
| 461 * This function may be helpful while we convert callers from ptr-based to sk_s
p-based parameters. | 458 * This function may be helpful while we convert callers from ptr-based to sk_s
p-based parameters. |
| 462 */ | 459 */ |
| 463 template <typename T> sk_sp<T> sk_ref_sp(T* obj) { | 460 template <typename T> sk_sp<T> sk_ref_sp(T* obj) { |
| 464 return sk_sp<T>(SkSafeRef(obj)); | 461 return sk_sp<T>(SkSafeRef(obj)); |
| 465 } | 462 } |
| 466 | 463 |
| 467 #endif | 464 #endif |
| 468 | 465 |
| 469 #endif | 466 #endif |
| OLD | NEW |