OLD | NEW |
1 | 1 |
2 /* | 2 /* |
3 * Copyright 2006 The Android Open Source Project | 3 * Copyright 2006 The Android Open Source Project |
4 * | 4 * |
5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
7 */ | 7 */ |
8 | 8 |
9 | 9 |
10 #ifndef SkRefCnt_DEFINED | 10 #ifndef SkRefCnt_DEFINED |
(...skipping 24 matching lines...) Expand all Loading... |
35 | 35 |
36 /** Destruct, asserting that the reference count is 1. | 36 /** Destruct, asserting that the reference count is 1. |
37 */ | 37 */ |
38 virtual ~SkRefCntBase() { | 38 virtual ~SkRefCntBase() { |
39 #ifdef SK_DEBUG | 39 #ifdef SK_DEBUG |
40 SkASSERTF(fRefCnt == 1, "fRefCnt was %d", fRefCnt); | 40 SkASSERTF(fRefCnt == 1, "fRefCnt was %d", fRefCnt); |
41 fRefCnt = 0; // illegal value, to catch us if we reuse after delete | 41 fRefCnt = 0; // illegal value, to catch us if we reuse after delete |
42 #endif | 42 #endif |
43 } | 43 } |
44 | 44 |
45 #ifdef SK_DEBUG | 45 //#ifdef SK_DEBUG |
46 /** Return the reference count. Use only for debugging. */ | 46 /** Return the reference count. Use only for debugging. */ |
47 int32_t getRefCnt() const { return fRefCnt; } | 47 int32_t getRefCnt() const { return fRefCnt; } |
48 #endif | 48 //#endif |
49 | 49 |
50 /** May return true if the caller is the only owner. | 50 /** May return true if the caller is the only owner. |
51 * Ensures that all previous owner's actions are complete. | 51 * Ensures that all previous owner's actions are complete. |
52 */ | 52 */ |
53 bool unique() const { | 53 bool unique() const { |
54 // We believe we're reading fRefCnt in a safe way here, so we stifle the
TSAN warning about | 54 // We believe we're reading fRefCnt in a safe way here, so we stifle the
TSAN warning about |
55 // an unproctected read. Generally, don't read fRefCnt, and don't stifl
e this warning. | 55 // an unproctected read. Generally, don't read fRefCnt, and don't stifl
e this warning. |
56 bool const unique = (1 == sk_acquire_load(&fRefCnt)); | 56 bool const unique = (1 == sk_acquire_load(&fRefCnt)); |
57 if (unique) { | 57 if (unique) { |
58 // Acquire barrier (L/SL), if not provided by load of fRefCnt. | 58 // Acquire barrier (L/SL), if not provided by load of fRefCnt. |
(...skipping 218 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
277 ~SkNVRefCnt() { | 277 ~SkNVRefCnt() { |
278 SkASSERTF(0 == fRefCnt, "NVRefCnt was %d", fRefCnt); | 278 SkASSERTF(0 == fRefCnt, "NVRefCnt was %d", fRefCnt); |
279 } | 279 } |
280 #endif | 280 #endif |
281 | 281 |
282 private: | 282 private: |
283 mutable int32_t fRefCnt; | 283 mutable int32_t fRefCnt; |
284 }; | 284 }; |
285 | 285 |
286 #endif | 286 #endif |
OLD | NEW |