Re: [PATCH] add io space MMAP for memory mapping devices and files

[Mohammad-Reza Nabipoor]

Hello Andreas.

Thanks for the patch.
It'd be nice if you add a helper function in `libpoke/std.pk' to help
Poke programmers.  We've already done that for `sub://' and `pid://' IO spaces.

You can search for `openproc' and `opensub' in `libpoke/std.pk'.
This is `openproc':

```poke
fun openproc = (uint<64> pid, uint<64> flags = 0) int<32>:
{
  return open (format ("pid://%u64d", pid), flags);
}
```

E.g., you can provide this:

```poke
fun openmmap =
  (string path, offset<uint<64>,B> base, offset<uint<64>,B> size) int<32>:
{
  return open (format ("mmap://%u64d/%u64d/%s", base/#B, size/#B, path));
}
```


Regards,
Mohammad-Reza