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Re: [Qemu-trivial] [Qemu-devel] [PATCH] Separate function types from opa
From: |
Dr. David Alan Gilbert |
Subject: |
Re: [Qemu-trivial] [Qemu-devel] [PATCH] Separate function types from opaque types in include/qemu/typedefs.h |
Date: |
Thu, 22 Jun 2017 18:50:13 +0100 |
User-agent: |
Mutt/1.8.2 (2017-04-18) |
* Greg Kurz (address@hidden) wrote:
> On Thu, 22 Jun 2017 18:25:55 +0100
> "Dr. David Alan Gilbert" <address@hidden> wrote:
>
> > * Peter Maydell (address@hidden) wrote:
> > > On 22 June 2017 at 18:03, Juan Quintela <address@hidden> wrote:
> > > > Greg Kurz <address@hidden> wrote:
> > > >> On Thu, 22 Jun 2017 17:14:08 +0100
> > > >> Peter Maydell <address@hidden> wrote:
> > > >>
> > > >>> On 22 June 2017 at 17:06, Greg Kurz <address@hidden> wrote:
> > > >>> > Function types cannot reside in the same sorted list as opaque
> > > >>> > types since
> > > >>> > they may depend on a type which would be defined later.
> > > >>> >
> > > >>> > Of course, the same problem could arise if a function type depends
> > > >>> > on
> > > >>> > another function type with greater alphabetical order. Hopefully we
> > > >>> > don't have that at this time.
> > > >>>
> > > >>> The other approach would be to put function types somewhere
> > > >>> else and leave typedefs.h for the simple 'opaque types
> > > >>> for structures' that it was started as.
> > > >>>
> > > >>> For instance we have include/qemu/fprintf-fn.h as a precedent.
> > > >>>
> > > >>
> > > >> Indeed, and I'm not quite sure why Juan decided to put these types into
> > > >> typedefs.h instead of a dedicated header file in include/migration...
> > > >> is
> > > >> it only because it was the quickest fix ?
> > > >
> > > > All other typedefs were defined there. I can create a different include
> > > > file, but I think that is "overengineering", no? They are typedefs,
> > > > just not of structs. But I agree that they are the only ones.
> > >
> > > Well, the comment in the file says "opaque types so that device init
> > > declarations don't have to pull in all the real definitions", whereas
> > > the ones you've added aren't opaque types, they are the real
> > > definitions. They're also only used by a very small subset of .c
> > > files, whereas typedefs.h goes everywhere.
> >
> > mv fprintf-fn.f fn-typedefs.h
> >
> > move those two defs into that?
> >
>
> Wouldn't it be more appropriate to put them in a dedicated
> include/migration/handler-fn.h header included by both
> vmstate.h and register.h ?
Could do; I'm just not finding tiny header files with one or
two entries each that useful.
Dave
> > Dave
> >
> > > thanks
> > > -- PMM
> > --
> > Dr. David Alan Gilbert / address@hidden / Manchester, UK
> >
>
--
Dr. David Alan Gilbert / address@hidden / Manchester, UK
- [Qemu-trivial] [PATCH] Separate function types from opaque types in include/qemu/typedefs.h, Greg Kurz, 2017/06/22
- Re: [Qemu-trivial] [Qemu-devel] [PATCH] Separate function types from opaque types in include/qemu/typedefs.h, Peter Maydell, 2017/06/22
- Re: [Qemu-trivial] [Qemu-devel] [PATCH] Separate function types from opaque types in include/qemu/typedefs.h, Greg Kurz, 2017/06/22
- Re: [Qemu-trivial] [PATCH] Separate function types from opaque types in include/qemu/typedefs.h, Juan Quintela, 2017/06/22
- Re: [Qemu-trivial] [PATCH] Separate function types from opaque types in include/qemu/typedefs.h, Peter Maydell, 2017/06/22
- Re: [Qemu-trivial] [PATCH] Separate function types from opaque types in include/qemu/typedefs.h, Dr. David Alan Gilbert, 2017/06/22
- Re: [Qemu-trivial] [Qemu-devel] [PATCH] Separate function types from opaque types in include/qemu/typedefs.h, Greg Kurz, 2017/06/22
- Re: [Qemu-trivial] [Qemu-devel] [PATCH] Separate function types from opaque types in include/qemu/typedefs.h,
Dr. David Alan Gilbert <=
- Re: [Qemu-trivial] [Qemu-devel] [PATCH] Separate function types from opaque types in include/qemu/typedefs.h, Thomas Huth, 2017/06/22
- Re: [Qemu-trivial] [Qemu-devel] [PATCH] Separate function types from opaque types in include/qemu/typedefs.h, Peter Maydell, 2017/06/22
- Re: [Qemu-trivial] [Qemu-devel] [PATCH] Separate function types from opaque types in include/qemu/typedefs.h, Dr. David Alan Gilbert, 2017/06/22
- Re: [Qemu-trivial] [Qemu-devel] [PATCH] Separate function types from opaque types in include/qemu/typedefs.h, Greg Kurz, 2017/06/22
- Re: [Qemu-trivial] [Qemu-devel] [PATCH] Separate function types from opaque types in include/qemu/typedefs.h, Dr. David Alan Gilbert, 2017/06/26
- Re: [Qemu-trivial] [Qemu-devel] [PATCH] Separate function types from opaque types in include/qemu/typedefs.h, Markus Armbruster, 2017/06/23
- Re: [Qemu-trivial] [PATCH] Separate function types from opaque types in include/qemu/typedefs.h, Juan Quintela, 2017/06/28
- Re: [Qemu-trivial] [Qemu-devel] [PATCH] Separate function types from opaque types in include/qemu/typedefs.h, Markus Armbruster, 2017/06/23