| /* |
| * Created by Phil on 02/05/2012. |
| * Copyright 2012 Two Blue Cubes Ltd. All rights reserved. |
| * |
| * Distributed under the Boost Software License, Version 1.0. (See accompanying |
| * file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
| */ |
| #ifndef TWOBLUECUBES_CATCH_PTR_HPP_INCLUDED |
| #define TWOBLUECUBES_CATCH_PTR_HPP_INCLUDED |
| |
| #include "catch_common.h" |
| |
| #ifdef __clang__ |
| #pragma clang diagnostic push |
| #pragma clang diagnostic ignored "-Wpadded" |
| #endif |
| |
| namespace Catch { |
| |
| // An intrusive reference counting smart pointer. |
| // T must implement addRef() and release() methods |
| // typically implementing the IShared interface |
| template<typename T> |
| class Ptr { |
| public: |
| Ptr() : m_p( NULL ){} |
| Ptr( T* p ) : m_p( p ){ |
| if( m_p ) |
| m_p->addRef(); |
| } |
| Ptr( Ptr const& other ) : m_p( other.m_p ){ |
| if( m_p ) |
| m_p->addRef(); |
| } |
| ~Ptr(){ |
| if( m_p ) |
| m_p->release(); |
| } |
| void reset() { |
| if( m_p ) |
| m_p->release(); |
| m_p = NULL; |
| } |
| Ptr& operator = ( T* p ){ |
| Ptr temp( p ); |
| swap( temp ); |
| return *this; |
| } |
| Ptr& operator = ( Ptr const& other ){ |
| Ptr temp( other ); |
| swap( temp ); |
| return *this; |
| } |
| void swap( Ptr& other ) { std::swap( m_p, other.m_p ); } |
| T* get() { return m_p; } |
| const T* get() const{ return m_p; } |
| T& operator*() const { return *m_p; } |
| T* operator->() const { return m_p; } |
| bool operator !() const { return m_p == NULL; } |
| operator SafeBool::type() const { return SafeBool::makeSafe( m_p != NULL ); } |
| |
| private: |
| T* m_p; |
| }; |
| |
| struct IShared : NonCopyable { |
| virtual ~IShared(); |
| virtual void addRef() const = 0; |
| virtual void release() const = 0; |
| }; |
| |
| template<typename T = IShared> |
| struct SharedImpl : T { |
| |
| SharedImpl() : m_rc( 0 ){} |
| |
| virtual void addRef() const { |
| ++m_rc; |
| } |
| virtual void release() const { |
| if( --m_rc == 0 ) |
| delete this; |
| } |
| |
| mutable unsigned int m_rc; |
| }; |
| |
| } // end namespace Catch |
| |
| #ifdef __clang__ |
| #pragma clang diagnostic pop |
| #endif |
| |
| #endif // TWOBLUECUBES_CATCH_PTR_HPP_INCLUDED |