mirror of
https://github.com/RPCS3/rpcs3.git
synced 2024-11-17 08:11:51 +00:00
46 lines
961 B
C++
46 lines
961 B
C++
#include "stdafx.h"
|
|
#include "Utilities/Log.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
|
|
void* ret = VirtualAlloc(NULL, size, MEM_RESERVE, PAGE_NOACCESS);
|
|
Ensures(ret != NULL);
|
|
#else
|
|
void* ret = mmap(nullptr, size, PROT_NONE, MAP_ANON | MAP_PRIVATE, -1, 0);
|
|
Ensures(ret != 0);
|
|
#endif
|
|
return ret;
|
|
}
|
|
|
|
void commit_page_memory(void* pointer, size_t page_size)
|
|
{
|
|
#ifdef _WIN32
|
|
ASSERT(VirtualAlloc((u8*)pointer, page_size, MEM_COMMIT, PAGE_READWRITE) != NULL);
|
|
#else
|
|
ASSERT(mprotect((u8*)pointer, page_size, PROT_READ | PROT_WRITE) != -1);
|
|
#endif
|
|
}
|
|
|
|
void free_reserved_memory(void* pointer, size_t size)
|
|
{
|
|
#ifdef _WIN32
|
|
ASSERT(VirtualFree(pointer, 0, MEM_RELEASE) != 0);
|
|
#else
|
|
ASSERT(munmap(pointer, size) == 0);
|
|
#endif
|
|
}
|
|
}
|