mirror of
https://github.com/RPCS3/rpcs3.git
synced 2024-09-29 15:31:14 +00:00
42 lines
809 B
C++
42 lines
809 B
C++
#include "stdafx.h"
|
|
#include "VirtualMemory.h"
|
|
#ifdef _WIN32
|
|
#include <Windows.h>
|
|
#else
|
|
#include <sys/mman.h>
|
|
#include <sys/stat.h>
|
|
#include <fcntl.h>
|
|
#include <unistd.h>
|
|
#include <sys/types.h>
|
|
#endif
|
|
|
|
namespace memory_helper
|
|
{
|
|
void* reserve_memory(size_t size)
|
|
{
|
|
#ifdef _WIN32
|
|
return VirtualAlloc(NULL, size, MEM_RESERVE, PAGE_NOACCESS);
|
|
#else
|
|
return mmap(nullptr, size, PROT_NONE, MAP_ANON | MAP_PRIVATE, -1, 0);
|
|
#endif
|
|
}
|
|
|
|
void commit_page_memory(void* pointer, size_t page_size)
|
|
{
|
|
#ifdef _WIN32
|
|
VirtualAlloc((u8*)pointer, page_size, MEM_COMMIT, PAGE_READWRITE);
|
|
#else
|
|
mprotect((u8*)pointer, page_size, PROT_READ | PROT_WRITE);
|
|
#endif
|
|
}
|
|
|
|
void free_reserved_memory(void* pointer, size_t size)
|
|
{
|
|
#ifdef _WIN32
|
|
VirtualFree(pointer, 0, MEM_RELEASE);
|
|
#else
|
|
munmap(pointer, size);
|
|
#endif
|
|
}
|
|
}
|