henrike@webrtc.org | f7795df | 2014-05-13 18:00:26 +0000 | [diff] [blame^] | 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 | #ifndef TALK_APP_BASE_REFCOUNT_H_ |
| 12 | #define TALK_APP_BASE_REFCOUNT_H_ |
| 13 | |
| 14 | #include <string.h> |
| 15 | |
| 16 | #include "webrtc/base/criticalsection.h" |
| 17 | |
| 18 | namespace rtc { |
| 19 | |
| 20 | // Reference count interface. |
| 21 | class RefCountInterface { |
| 22 | public: |
| 23 | virtual int AddRef() = 0; |
| 24 | virtual int Release() = 0; |
| 25 | protected: |
| 26 | virtual ~RefCountInterface() {} |
| 27 | }; |
| 28 | |
| 29 | template <class T> |
| 30 | class RefCountedObject : public T { |
| 31 | public: |
| 32 | RefCountedObject() : ref_count_(0) { |
| 33 | } |
| 34 | |
| 35 | template<typename P> |
| 36 | explicit RefCountedObject(P p) : T(p), ref_count_(0) { |
| 37 | } |
| 38 | |
| 39 | template<typename P1, typename P2> |
| 40 | RefCountedObject(P1 p1, P2 p2) : T(p1, p2), ref_count_(0) { |
| 41 | } |
| 42 | |
| 43 | template<typename P1, typename P2, typename P3> |
| 44 | RefCountedObject(P1 p1, P2 p2, P3 p3) : T(p1, p2, p3), ref_count_(0) { |
| 45 | } |
| 46 | |
| 47 | template<typename P1, typename P2, typename P3, typename P4> |
| 48 | RefCountedObject(P1 p1, P2 p2, P3 p3, P4 p4) |
| 49 | : T(p1, p2, p3, p4), ref_count_(0) { |
| 50 | } |
| 51 | |
| 52 | template<typename P1, typename P2, typename P3, typename P4, typename P5> |
| 53 | RefCountedObject(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5) |
| 54 | : T(p1, p2, p3, p4, p5), ref_count_(0) { |
| 55 | } |
| 56 | |
| 57 | virtual int AddRef() { |
| 58 | return rtc::AtomicOps::Increment(&ref_count_); |
| 59 | } |
| 60 | |
| 61 | virtual int Release() { |
| 62 | int count = rtc::AtomicOps::Decrement(&ref_count_); |
| 63 | if (!count) { |
| 64 | delete this; |
| 65 | } |
| 66 | return count; |
| 67 | } |
| 68 | |
| 69 | protected: |
| 70 | virtual ~RefCountedObject() { |
| 71 | } |
| 72 | |
| 73 | int ref_count_; |
| 74 | }; |
| 75 | |
| 76 | } // namespace rtc |
| 77 | |
| 78 | #endif // TALK_APP_BASE_REFCOUNT_H_ |