#!/usr/bin/env python3

import os
import sys
import tempfile
import mmap
import resource

(fd,filepath) = tempfile.mkstemp(dir=sys.argv[1])

os.ftruncate(fd,resource.getpagesize())

data = mmap.mmap(fileno=fd,
                 length=resource.getpagesize(),
                 flags=mmap.MAP_PRIVATE)

data = mmap.mmap(fileno=fd,
                 length=resource.getpagesize(),
                 flags=mmap.MAP_SHARED)

os.unlink(filepath)
os.close(fd)