1#include "memory.h"
 2
 3#include <io.h>
 4#include <Windows.h>
 5
 6void* anonymousMemoryMap(size_t size) {
 7	HANDLE hMap = CreateFileMapping(INVALID_HANDLE_VALUE, 0, PAGE_READWRITE, 0, size & 0xFFFFFFFF, 0);
 8	return MapViewOfFile(hMap, FILE_MAP_WRITE, 0, 0, size);
 9}
10
11void* fileMemoryMap(int fd, size_t size, int flags) {
12	int createFlags = PAGE_READONLY;
13	int mapFiles = FILE_MAP_READ;
14	if (flags & MEMORY_WRITE) {
15		createFlags = PAGE_READWRITE;
16		mapFiles = FILE_MAP_WRITE;
17	}
18	size_t location = lseek(fd, 0, SEEK_CUR);
19	size_t fileSize = lseek(fd, 0, SEEK_END);
20	lseek(fd, location, SEEK_SET);
21	if (size > fileSize) {
22		size = fileSize;
23	}
24	HANDLE hMap = CreateFileMapping((HANDLE) _get_osfhandle(fd), 0, createFlags, 0, size & 0xFFFFFFFF, 0);
25	return MapViewOfFile(hMap, mapFiles, 0, 0, size);
26}
27
28void mappedMemoryFree(void* memory, size_t size) {
29	// TODO fill in
30}