netdev - Re: [PATCH net-next v1 1/2] rust: add delay abstraction

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Message-ID: <CAH5fLgiB_3v6rVEWCNVVma=vPFAse-WvvCzHKrjHKTDBwjPz2Q@mail.gmail.com>
Date: Wed, 2 Oct 2024 14:37:55 +0200
From: Alice Ryhl <aliceryhl@...gle.com>
To: Andrew Lunn <andrew@...n.ch>
Cc: FUJITA Tomonori <fujita.tomonori@...il.com>, netdev@...r.kernel.org, 
	rust-for-linux@...r.kernel.org, hkallweit1@...il.com, tmgross@...ch.edu, 
	ojeda@...nel.org, alex.gaynor@...il.com, gary@...yguo.net, 
	bjorn3_gh@...tonmail.com, benno.lossin@...ton.me, a.hindborg@...sung.com
Subject: Re: [PATCH net-next v1 1/2] rust: add delay abstraction

On Wed, Oct 2, 2024 at 2:19 PM Andrew Lunn <andrew@...n.ch> wrote:
>
> > > I would also document the units for the parameter. Is it picoseconds
> > > or centuries?
> >
> > Rust's Duration is created from seconds and nanoseconds.
>
> How well know is that? And is there a rust-for-linux wide preference
> to use Duration for time? Are we going to get into a situation that
> some abstractions use Duration, others seconds, some milliseconds,
> etc, just like C code?
>
> Anyway, i would still document the parameter is a Duration, since it
> is different to how C fsleep() works.

I'm not necessarily convinced we want to use the Rust Duration type.
Similar questions came up when I added the Ktime type. The Rust
Duration type is rather large.

Alice