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

Issue 1217573002: remove SkInstCnt (Closed) Base URL: https://skia.googlesource.com/skia@master
Patch Set: Created 5 years, 5 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 "SkAtomics.h" 13 #include "SkAtomics.h"
14 #include "SkInstCnt.h"
15 #include "SkTemplates.h" 14 #include "SkTemplates.h"
16 15
17 /** \class SkRefCntBase 16 /** \class SkRefCntBase
18 17
19 SkRefCntBase is the base class for objects that may be shared by multiple 18 SkRefCntBase is the base class for objects that may be shared by multiple
20 objects. When an existing owner wants to share a reference, it calls ref(). 19 objects. When an existing owner wants to share a reference, it calls ref().
21 When an owner wants to release its reference, it calls unref(). When the 20 When an owner wants to release its reference, it calls unref(). When the
22 shared object's reference count goes to zero as the result of an unref() 21 shared object's reference count goes to zero as the result of an unref()
23 call, its (virtual) destructor is called. It is an error for the 22 call, its (virtual) destructor is called. It is an error for the
24 destructor to be called explicitly (or via the object going out of scope on 23 destructor to be called explicitly (or via the object going out of scope on
25 the stack or calling delete) if getRefCnt() > 1. 24 the stack or calling delete) if getRefCnt() > 1.
26 */ 25 */
27 class SK_API SkRefCntBase : SkNoncopyable { 26 class SK_API SkRefCntBase : SkNoncopyable {
28 public: 27 public:
29 SK_DECLARE_INST_COUNT(SkRefCntBase)
30
31 /** Default construct, initializing the reference count to 1. 28 /** Default construct, initializing the reference count to 1.
32 */ 29 */
33 SkRefCntBase() : fRefCnt(1) {} 30 SkRefCntBase() : fRefCnt(1) {}
34 31
35 /** Destruct, asserting that the reference count is 1. 32 /** Destruct, asserting that the reference count is 1.
36 */ 33 */
37 virtual ~SkRefCntBase() { 34 virtual ~SkRefCntBase() {
38 #ifdef SK_DEBUG 35 #ifdef SK_DEBUG
39 SkASSERTF(fRefCnt == 1, "fRefCnt was %d", fRefCnt); 36 SkASSERTF(fRefCnt == 1, "fRefCnt was %d", fRefCnt);
40 fRefCnt = 0; // illegal value, to catch us if we reuse after delete 37 fRefCnt = 0; // illegal value, to catch us if we reuse after delete
(...skipping 202 matching lines...) Expand 10 before | Expand all | Expand 10 after
243 SkDELETE((const Derived*)this); 240 SkDELETE((const Derived*)this);
244 } 241 }
245 } 242 }
246 void deref() const { this->unref(); } 243 void deref() const { this->unref(); }
247 244
248 private: 245 private:
249 mutable int32_t fRefCnt; 246 mutable int32_t fRefCnt;
250 }; 247 };
251 248
252 #endif 249 #endif
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