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

Issue 303813003: Revert "Remove SkThread.h from public API." (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: Created 6 years, 6 months ago
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1 /* 1 /*
2 * Copyright 2012 Google Inc. 2 * Copyright 2012 Google Inc.
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 SkWeakRefCnt_DEFINED 8 #ifndef SkWeakRefCnt_DEFINED
9 #define SkWeakRefCnt_DEFINED 9 #define SkWeakRefCnt_DEFINED
10 10
11 #include "SkRefCnt.h" 11 #include "SkRefCnt.h"
12 #include "../../src/core/SkThread.h" 12 #include "SkThread.h"
13 13
14 /** \class SkWeakRefCnt 14 /** \class SkWeakRefCnt
15 15
16 SkWeakRefCnt is the base class for objects that may be shared by multiple 16 SkWeakRefCnt is the base class for objects that may be shared by multiple
17 objects. When an existing strong owner wants to share a reference, it calls 17 objects. When an existing strong owner wants to share a reference, it calls
18 ref(). When a strong owner wants to release its reference, it calls 18 ref(). When a strong owner wants to release its reference, it calls
19 unref(). When the shared object's strong reference count goes to zero as 19 unref(). When the shared object's strong reference count goes to zero as
20 the result of an unref() call, its (virtual) weak_dispose method is called. 20 the result of an unref() call, its (virtual) weak_dispose method is called.
21 It is an error for the destructor to be called explicitly (or via the 21 It is an error for the destructor to be called explicitly (or via the
22 object going out of scope on the stack or calling delete) if 22 object going out of scope on the stack or calling delete) if
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152 weak_unref(); 152 weak_unref();
153 } 153 }
154 154
155 /* Invariant: fWeakCnt = #weak + (fRefCnt > 0 ? 1 : 0) */ 155 /* Invariant: fWeakCnt = #weak + (fRefCnt > 0 ? 1 : 0) */
156 mutable int32_t fWeakCnt; 156 mutable int32_t fWeakCnt;
157 157
158 typedef SkRefCnt INHERITED; 158 typedef SkRefCnt INHERITED;
159 }; 159 };
160 160
161 #endif 161 #endif
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