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Re: [Qemu-devel] [PATCH v1 repost 2] block/curl: Improve type safety of
From: |
Richard W.M. Jones |
Subject: |
Re: [Qemu-devel] [PATCH v1 repost 2] block/curl: Improve type safety of s->timeout. |
Date: |
Sun, 26 Oct 2014 10:57:59 +0000 |
User-agent: |
Mutt/1.5.20 (2009-12-10) |
On Sun, Oct 26, 2014 at 06:55:21PM +0800, Gonglei wrote:
> On 2014/10/26 18:48, Richard W.M. Jones wrote:
>
> > On Sun, Oct 26, 2014 at 06:45:02PM +0800, Gonglei wrote:
> >> On 2014/10/26 18:22, Richard W.M. Jones wrote:
> >>
> >>> It's just there to stop unreasonable timeouts or negative numbers.
> >>> 100000 s is 27 hours, and no webserver I know of would keep a
> >>> connection open that long. Possibly not even the IP stack.
> >>>
> >>
> >> Yes, it is. But 26 hours is OK? I just think we should assure the timeout
> >> as reasonable range, absolutely 100000 is too big IMO.
> >>
> >>> What's the difference between defining a number at the top of the file
> >>> to be used once, and placing it exactly where it is used? Except the
> >>> former introduces long range dependencies into the code making it
> >>> harder to read and more fragile when changed.
> >>
> >>
> >> That's the purpose using macro. If this value is used only one place in
> >> the
> >> curl.c (or other c files) now and future, you are fine with it. :)
> >
> > I don't understand this part. Can you explain how you think a macro
> > should be used?
> >
>
> Sorry for misapprehension. I mean that's the purpose using macro what your
> said:
> " Except the former introduces long range dependencies into the code making it
> harder to read and more fragile when changed."
OK, so our coding style is about introducing fragility and long
range dependencies. v2 coming up ...
Rich.
--
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