Is there a function that reads the entire contents of a std.stdio.File?

[Jay via Digitalmars-d-learn]

On Tuesday, 16 September 2014 at 14:43:10 UTC, Marc Schütz wrote:
> You could try `std.mmfile.MmFile`, it has a constructor that 
> takes a `File`, but only on Linux:
>
> http://dlang.org/phobos/std_mmfile.html
> https://github.com/D-Programming-Language/phobos/blob/master/std/mmfile.d#L77-L79

does it work with pipes/sockets? it seems to call fstat() to get 
the size of the contents. but anyway this is quite useful, thanks.