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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-13 11:32:39 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-13 11:32:39 +0000 |
commit | 56ae875861ab260b80a030f50c4aff9f9dc8fff0 (patch) | |
tree | 531412110fc901a5918c7f7442202804a83cada9 /lib/base/shared-memory.hpp | |
parent | Initial commit. (diff) | |
download | icinga2-upstream/2.14.2.tar.xz icinga2-upstream/2.14.2.zip |
Adding upstream version 2.14.2.upstream/2.14.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'lib/base/shared-memory.hpp')
-rw-r--r-- | lib/base/shared-memory.hpp | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/lib/base/shared-memory.hpp b/lib/base/shared-memory.hpp new file mode 100644 index 0000000..dd350c8 --- /dev/null +++ b/lib/base/shared-memory.hpp @@ -0,0 +1,45 @@ +/* Icinga 2 | (c) 2023 Icinga GmbH | GPLv2+ */ + +#pragma once + +#include <boost/interprocess/anonymous_shared_memory.hpp> +#include <utility> + +namespace icinga +{ + +/** + * Type-safe memory shared across fork(2). + * + * @ingroup base + */ +template<class T> +class SharedMemory +{ +public: + template<class... Args> + SharedMemory(Args&&... args) : m_Memory(boost::interprocess::anonymous_shared_memory(sizeof(T))) + { + new(GetAddress()) T(std::forward<Args>(args)...); + } + + SharedMemory(const SharedMemory&) = delete; + SharedMemory(SharedMemory&&) = delete; + SharedMemory& operator=(const SharedMemory&) = delete; + SharedMemory& operator=(SharedMemory&&) = delete; + + inline T& Get() const + { + return *GetAddress(); + } + +private: + inline T* GetAddress() const + { + return (T*)m_Memory.get_address(); + } + + boost::interprocess::mapped_region m_Memory; +}; + +} |