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| 1 /* | |
| 2 * Copyright 2011 The WebRTC Project Authors. All rights reserved. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license | |
| 5 * that can be found in the LICENSE file in the root of the source | |
| 6 * tree. An additional intellectual property rights grant can be found | |
| 7 * in the file PATENTS. All contributing project authors may | |
| 8 * be found in the AUTHORS file in the root of the source tree. | |
| 9 */ | |
| 10 | |
| 11 // Originally these classes are from Chromium. | |
| 12 // http://src.chromium.org/viewvc/chrome/trunk/src/base/memory/ref_counted.h?vie
w=markup | |
| 13 | |
| 14 // | |
| 15 // A smart pointer class for reference counted objects. Use this class instead | |
| 16 // of calling AddRef and Release manually on a reference counted object to | |
| 17 // avoid common memory leaks caused by forgetting to Release an object | |
| 18 // reference. Sample usage: | |
| 19 // | |
| 20 // class MyFoo : public RefCounted<MyFoo> { | |
| 21 // ... | |
| 22 // }; | |
| 23 // | |
| 24 // void some_function() { | |
| 25 // scoped_refptr<MyFoo> foo = new MyFoo(); | |
| 26 // foo->Method(param); | |
| 27 // // |foo| is released when this function returns | |
| 28 // } | |
| 29 // | |
| 30 // void some_other_function() { | |
| 31 // scoped_refptr<MyFoo> foo = new MyFoo(); | |
| 32 // ... | |
| 33 // foo = nullptr; // explicitly releases |foo| | |
| 34 // ... | |
| 35 // if (foo) | |
| 36 // foo->Method(param); | |
| 37 // } | |
| 38 // | |
| 39 // The above examples show how scoped_refptr<T> acts like a pointer to T. | |
| 40 // Given two scoped_refptr<T> classes, it is also possible to exchange | |
| 41 // references between the two objects, like so: | |
| 42 // | |
| 43 // { | |
| 44 // scoped_refptr<MyFoo> a = new MyFoo(); | |
| 45 // scoped_refptr<MyFoo> b; | |
| 46 // | |
| 47 // b.swap(a); | |
| 48 // // now, |b| references the MyFoo object, and |a| references null. | |
| 49 // } | |
| 50 // | |
| 51 // To make both |a| and |b| in the above example reference the same MyFoo | |
| 52 // object, simply use the assignment operator: | |
| 53 // | |
| 54 // { | |
| 55 // scoped_refptr<MyFoo> a = new MyFoo(); | |
| 56 // scoped_refptr<MyFoo> b; | |
| 57 // | |
| 58 // b = a; | |
| 59 // // now, |a| and |b| each own a reference to the same MyFoo object. | |
| 60 // } | |
| 61 // | |
| 62 | |
| 63 #ifndef WEBRTC_BASE_SCOPED_REF_PTR_H_ | |
| 64 #define WEBRTC_BASE_SCOPED_REF_PTR_H_ | |
| 65 | |
| 66 | |
| 67 // This header is deprecated and is just left here temporarily during | |
| 68 // refactoring. See https://bugs.webrtc.org/7634 for more details. | |
| 69 #include "webrtc/rtc_base/scoped_ref_ptr.h" | |
| 70 | |
| 71 #endif // WEBRTC_BASE_SCOPED_REF_PTR_H_ | |
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Chromium Code Reviews
Issue 2976293002:
Remove remains of webrtc/base (Closed)
