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Side by Side Diff: include/core/SkRefCnt.h

Issue 841263004: Simplify SkInstCnt (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: T:: Created 5 years, 11 months ago
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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
11 #define SkRefCnt_DEFINED 11 #define SkRefCnt_DEFINED
12 12
13 #include "SkDynamicAnnotations.h" 13 #include "SkDynamicAnnotations.h"
14 #include "SkThread.h" 14 #include "SkThread.h"
15 #include "SkInstCnt.h" 15 #include "SkInstCnt.h"
16 #include "SkTemplates.h" 16 #include "SkTemplates.h"
17 17
18 /** \class SkRefCntBase 18 /** \class SkRefCntBase
19 19
20 SkRefCntBase is the base class for objects that may be shared by multiple 20 SkRefCntBase is the base class for objects that may be shared by multiple
21 objects. When an existing owner wants to share a reference, it calls ref(). 21 objects. When an existing owner wants to share a reference, it calls ref().
22 When an owner wants to release its reference, it calls unref(). When the 22 When an owner wants to release its reference, it calls unref(). When the
23 shared object's reference count goes to zero as the result of an unref() 23 shared object's reference count goes to zero as the result of an unref()
24 call, its (virtual) destructor is called. It is an error for the 24 call, its (virtual) destructor is called. It is an error for the
25 destructor to be called explicitly (or via the object going out of scope on 25 destructor to be called explicitly (or via the object going out of scope on
26 the stack or calling delete) if getRefCnt() > 1. 26 the stack or calling delete) if getRefCnt() > 1.
27 */ 27 */
28 class SK_API SkRefCntBase : SkNoncopyable { 28 class SK_API SkRefCntBase : SkNoncopyable {
29 public: 29 public:
30 SK_DECLARE_INST_COUNT_ROOT(SkRefCntBase) 30 SK_DECLARE_INST_COUNT(SkRefCntBase)
31 31
32 /** Default construct, initializing the reference count to 1. 32 /** Default construct, initializing the reference count to 1.
33 */ 33 */
34 SkRefCntBase() : fRefCnt(1) {} 34 SkRefCntBase() : fRefCnt(1) {}
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);
(...skipping 231 matching lines...) Expand 10 before | Expand all | Expand 10 after
272 SkDELETE((const Derived*)this); 272 SkDELETE((const Derived*)this);
273 } 273 }
274 } 274 }
275 void deref() const { this->unref(); } // Chrome prefers to call deref(). 275 void deref() const { this->unref(); } // Chrome prefers to call deref().
276 276
277 private: 277 private:
278 mutable int32_t fRefCnt; 278 mutable int32_t fRefCnt;
279 }; 279 };
280 280
281 #endif 281 #endif
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