[7192] | 1 | /* |
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| 2 | * ORXONOX - the hottest 3D action shooter ever to exist |
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| 3 | * > www.orxonox.net < |
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| 4 | * |
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| 5 | * |
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| 6 | * License notice: |
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| 7 | * |
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| 8 | * This program is free software; you can redistribute it and/or |
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| 9 | * modify it under the terms of the GNU General Public License |
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| 10 | * as published by the Free Software Foundation; either version 2 |
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| 11 | * of the License, or (at your option) any later version. |
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| 12 | * |
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| 13 | * This program is distributed in the hope that it will be useful, |
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| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 16 | * GNU General Public License for more details. |
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| 17 | * |
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| 18 | * You should have received a copy of the GNU General Public License |
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| 19 | * along with this program; if not, write to the Free Software |
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| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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| 21 | * |
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| 22 | * Author: |
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| 23 | * Fabian 'x3n' Landau |
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| 24 | * Co-authors: |
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| 25 | * ... |
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| 26 | * |
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| 27 | */ |
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| 28 | |
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| 29 | #ifndef _SharedPtr_H__ |
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| 30 | #define _SharedPtr_H__ |
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| 31 | |
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| 32 | #include "CorePrereqs.h" |
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| 33 | |
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| 34 | namespace orxonox |
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| 35 | { |
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| 36 | template <class T> |
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| 37 | class SharedPtr |
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| 38 | { |
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| 39 | public: |
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| 40 | inline SharedPtr() : pointer_(0) |
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| 41 | { |
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| 42 | // COUT(0) << "SharedPtr (1): " << this->pointer_ << std::endl; |
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| 43 | } |
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| 44 | |
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| 45 | inline SharedPtr(T* pointer) : pointer_(pointer) |
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| 46 | { |
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| 47 | // COUT(0) << "SharedPtr (2): " << this->pointer_ << std::endl; |
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| 48 | if (this->pointer_) |
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| 49 | this->pointer_->incrementReferenceCount(); |
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| 50 | } |
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| 51 | |
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| 52 | inline SharedPtr(const SharedPtr& other) : pointer_(other.pointer_) |
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| 53 | { |
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| 54 | // COUT(0) << "SharedPtr (3): " << this->pointer_ << std::endl; |
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| 55 | if (this->pointer_) |
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| 56 | this->pointer_->incrementReferenceCount(); |
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| 57 | } |
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| 58 | |
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| 59 | inline ~SharedPtr() |
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| 60 | { |
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| 61 | // COUT(0) << "~SharedPtr: " << this->pointer_ << std::endl; |
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| 62 | if (this->pointer_) |
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| 63 | this->pointer_->decrementReferenceCount(); |
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| 64 | } |
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| 65 | |
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| 66 | inline const SharedPtr& operator=(const SharedPtr& other) |
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| 67 | { |
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| 68 | // COUT(0) << "SharedPtr=" << std::endl; |
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| 69 | SharedPtr(other).swap(*this); |
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| 70 | return *this; |
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| 71 | } |
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| 72 | |
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| 73 | inline void cast(const SharedPtr& other) |
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| 74 | { |
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| 75 | // COUT(0) << "SharedPtr cast" << std::endl; |
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| 76 | SharedPtr(other).swap(*this); |
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| 77 | } |
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| 78 | |
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| 79 | inline T* operator->() const |
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| 80 | { |
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| 81 | assert(this->pointer_ != 0); |
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| 82 | return this->pointer_; |
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| 83 | } |
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| 84 | |
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| 85 | inline T& operator*() const |
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| 86 | { |
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| 87 | assert(this->pointer_ != 0); |
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| 88 | return *this->pointer_; |
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| 89 | } |
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| 90 | |
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| 91 | inline operator bool() const |
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| 92 | { |
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| 93 | return (this->pointer_ != 0); |
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| 94 | } |
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| 95 | |
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| 96 | inline void swap(SharedPtr& other) |
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| 97 | { |
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| 98 | T* temp = this->pointer_; |
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| 99 | this->pointer_ = other.pointer_; |
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| 100 | other.pointer_ = temp; |
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| 101 | } |
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| 102 | |
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| 103 | private: |
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| 104 | T* pointer_; |
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| 105 | }; |
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| 106 | |
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| 107 | template <class T, class Parent> |
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| 108 | class SharedChildPtr : public SharedPtr<Parent> |
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| 109 | { |
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| 110 | public: |
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| 111 | inline SharedChildPtr() : SharedPtr<Parent>() {} |
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| 112 | inline SharedChildPtr(T* pointer) : SharedPtr<Parent>(pointer) {} |
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| 113 | inline SharedChildPtr(const SharedChildPtr& other) : SharedPtr<Parent>(other) {} |
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| 114 | inline const SharedChildPtr& operator=(const SharedChildPtr& other) { SharedPtr<Parent>::operator=(other); return *this; } |
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| 115 | inline T* operator->() const { return static_cast<T*>(SharedPtr<Parent>::operator->()); } |
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| 116 | inline T& operator*() const { return *static_cast<T*>(SharedPtr<Parent>::operator->()); } |
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| 117 | }; |
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| 118 | } |
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| 119 | |
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| 120 | #endif /* _SharedPtr_H__ */ |
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