1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
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;
};
}
|
