rpcs3/Utilities/VirtualMemory.h

36 lines
892 B
C++

#pragma once
namespace utils
{
// Memory protection type
enum class protection
{
rw, // Read + write (default)
ro, // Read only
no, // No access
wx, // Read + write + execute
rx, // Read + execute
};
/**
* Reserve `size` bytes of virtual memory and returns it.
* The memory should be commited before usage.
*/
void* memory_reserve(std::size_t size, void* use_addr = nullptr);
/**
* Commit `size` bytes of virtual memory starting at pointer.
* That is, bake reserved memory with physical memory.
* pointer should belong to a range of reserved memory.
*/
void memory_commit(void* pointer, std::size_t size, protection prot = protection::rw);
/**
* Decommit all memory committed via commit_page_memory.
*/
void memory_decommit(void* pointer, std::size_t size);
// Set memory protection
void memory_protect(void* pointer, std::size_t size, protection prot);
}