mirror of https://github.com/Icinga/icinga2.git
46 lines
842 B
C++
46 lines
842 B
C++
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/* Icinga 2 | (c) 2023 Icinga GmbH | GPLv2+ */
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#pragma once
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#include <boost/interprocess/anonymous_shared_memory.hpp>
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#include <utility>
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namespace icinga
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{
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/**
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* Type-safe memory shared across fork(2).
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*
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* @ingroup base
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*/
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template<class T>
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class SharedMemory
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{
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public:
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template<class... Args>
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SharedMemory(Args&&... args) : m_Memory(boost::interprocess::anonymous_shared_memory(sizeof(T)))
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{
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new(GetAddress()) T(std::forward<Args>(args)...);
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}
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SharedMemory(const SharedMemory&) = delete;
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SharedMemory(SharedMemory&&) = delete;
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SharedMemory& operator=(const SharedMemory&) = delete;
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SharedMemory& operator=(SharedMemory&&) = delete;
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inline T& Get() const
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{
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return *GetAddress();
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}
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private:
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inline T* GetAddress() const
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{
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return (T*)m_Memory.get_address();
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}
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boost::interprocess::mapped_region m_Memory;
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};
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}
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