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https://github.com/RPCS3/rpcs3.git
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e9e87b8bd9
- Multiple header files where missing #includes to other headers that where used in the header. Correct header was included in correct order in source files which caused everything to compile. - Added missing #includes so header files correctly include all their dependencies and fixes problems with IDEs being unable to parse headers correctly due to missing symbols
79 lines
1.8 KiB
C++
79 lines
1.8 KiB
C++
#pragma once
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#include "types.h"
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namespace utils
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{
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// Memory protection type
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enum class protection
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{
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rw, // Read + write (default)
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ro, // Read only
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no, // No access
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wx, // Read + write + execute
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rx, // Read + execute
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};
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/**
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* Reserve `size` bytes of virtual memory and returns it.
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* The memory should be commited before usage.
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*/
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void* memory_reserve(std::size_t size, void* use_addr = nullptr);
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/**
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* Commit `size` bytes of virtual memory starting at pointer.
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* That is, bake reserved memory with physical memory.
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* pointer should belong to a range of reserved memory.
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*/
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void memory_commit(void* pointer, std::size_t size, protection prot = protection::rw);
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// Decommit all memory committed via commit_page_memory.
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void memory_decommit(void* pointer, std::size_t size);
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// Decommit all memory and commit it again.
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void memory_reset(void* pointer, std::size_t size, protection prot = protection::rw);
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// Free memory after reserved by memory_reserve, should specify original size
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void memory_release(void* pointer, std::size_t size);
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// Set memory protection
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void memory_protect(void* pointer, std::size_t size, protection prot);
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// Shared memory handle
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class shm
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{
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#ifdef _WIN32
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void* m_handle;
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#else
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int m_file;
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#endif
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u32 m_size;
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public:
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explicit shm(u32 size);
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shm(const shm&) = delete;
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shm& operator=(const shm&) = delete;
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~shm();
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// Map shared memory
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u8* map(void* ptr, protection prot = protection::rw) const;
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// Map shared memory over reserved memory region, which is unsafe (non-atomic) under Win32
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u8* map_critical(void* ptr, protection prot = protection::rw);
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// Unmap shared memory
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void unmap(void* ptr) const;
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// Unmap shared memory, undoing map_critical
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void unmap_critical(void* ptr);
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u32 size() const
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{
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return m_size;
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}
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};
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}
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