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/*** |
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*event.h |
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* |
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* Copyright (c) Microsoft Corporation. All rights reserved. |
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* |
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*Purpose: delegate_proxy_factory class |
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* |
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* [Public] |
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* |
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****/ |
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#pragma once |
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#ifndef __cplusplus_cli |
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#error ERROR: msclr libraries are not compatible with /clr:oldSyntax |
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#endif |
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#include <gcroot.h> |
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namespace msclr { |
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namespace delegate_map { |
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namespace internal { |
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template <typename CLASS> class delegate_proxy_factory |
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{ |
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typedef typename CLASS::delegate_proxy_type proxy_type; |
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gcroot<proxy_type^> m_gc_managed_native_delegate_proxy; |
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public: |
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delegate_proxy_factory() {} |
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virtual ~delegate_proxy_factory() |
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{ |
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if((proxy_type^)m_gc_managed_native_delegate_proxy != nullptr) |
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{ |
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m_gc_managed_native_delegate_proxy->detach(); |
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} |
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} |
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proxy_type^ get_proxy(CLASS* pNativeTarget) |
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{ |
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if((proxy_type^)m_gc_managed_native_delegate_proxy == nullptr) |
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#define BEGIN_DELEGATE_MAP(CLASS)\ |
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ref class delegate_proxy_type;\ |
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msclr::delegate_map::internal::delegate_proxy_factory<CLASS> m_delegate_map_proxy;\ |
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\ |
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ref class delegate_proxy_type\ |
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{\ |
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CLASS* m_p_native_target;\ |
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public:\ |
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delegate_proxy_type(CLASS* pNativeTarget) : m_p_native_target(pNativeTarget) {}\ |
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void detach() { m_p_native_target = NULL; } |
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#define EVENT_DELEGATE_ENTRY(MEMBER,ARG0,ARG1)\ |
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void MEMBER(ARG0 arg0,ARG1 arg1)\ |
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{\ |
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if(m_p_native_target == NULL)\ |
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throw gcnew System::ArgumentNullException("Delegate call failed: Native sink was not attached or has already detached from the managed proxy (m_p_native_target == NULL). Hint: see if native sink was destructed or not constructed properly");\ |
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\ |
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m_p_native_target->MEMBER(arg0,arg1);\ |
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} |
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#define END_DELEGATE_MAP()\ |
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}; |
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#define MAKE_DELEGATE(DELEGATE,MEMBER)\ |
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gcnew DELEGATE(m_delegate_map_proxy.get_proxy(this),&delegate_proxy_type::MEMBER) |
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