From: Luiz Capitulino <lcapitulino@redhat.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>,
Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>,
Jeff Cody <jcody@redhat.com>, qemu-devel <qemu-devel@nongnu.org>,
Federico Simoncelli <fsimonce@redhat.com>,
Eric Blake <eblake@redhat.com>
Subject: Re: [Qemu-devel] [PATCH 3/6] rename blockdev-group-snapshot-sync
Date: Thu, 1 Mar 2012 10:30:15 -0300 [thread overview]
Message-ID: <20120301103015.32ac019d@doriath.home> (raw)
In-Reply-To: <4F4E42E8.8060003@redhat.com>
On Wed, 29 Feb 2012 16:23:20 +0100
Paolo Bonzini <pbonzini@redhat.com> wrote:
> Il 29/02/2012 16:08, Luiz Capitulino ha scritto:
> >> >
> >> > but it can just be omitted, I wasn't sure of how QAPI handled optionals.
> > Do you now?
>
> Perhaps not. :)
>
> > All optionals will be accompanied of a 'bool has_OPTIONAL_NAME', this bool
> > will be true if the optional has been passed by the caller/client or false
> > otherwise (in which case you shouldn't trust it).
>
> My understanding was that in this case I can trust the value to be
> all-zeros (zero, false, 0.0, NULL), at least in the context of QAPI.
> The QmpInputVisitor uses g_malloc0.
Yes, as a side effect :) I mean, I don't think the reason for using g_malloc0()
was to have optionals zeroed. If we're going to count on this, then it's
better to make it explicit and/or document it.
next prev parent reply other threads:[~2012-03-01 13:31 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-29 13:37 [Qemu-devel] [PATCH 0/6] Mirrored writes using blockdev-transaction Paolo Bonzini
2012-02-29 13:37 ` [Qemu-devel] [PATCH 1/6] fix format name for backing file Paolo Bonzini
2012-02-29 13:37 ` [Qemu-devel] [PATCH 2/6] qapi: complete implementation of unions Paolo Bonzini
2012-02-29 13:37 ` [Qemu-devel] [PATCH 3/6] rename blockdev-group-snapshot-sync Paolo Bonzini
2012-02-29 14:25 ` Paolo Bonzini
2012-02-29 15:08 ` Luiz Capitulino
2012-02-29 15:23 ` Paolo Bonzini
2012-03-01 13:30 ` Luiz Capitulino [this message]
2012-03-01 13:33 ` Paolo Bonzini
2012-02-29 18:41 ` Eric Blake
2012-03-01 10:18 ` Paolo Bonzini
2012-02-29 13:37 ` [Qemu-devel] [PATCH 4/6] add reuse field Paolo Bonzini
2012-02-29 18:50 ` Eric Blake
2012-03-01 10:22 ` Kevin Wolf
2012-02-29 13:37 ` [Qemu-devel] [PATCH 5/6] Add blkmirror block driver Paolo Bonzini
2012-02-29 14:37 ` Stefan Hajnoczi
2012-02-29 14:56 ` Paolo Bonzini
2012-02-29 19:36 ` Eric Blake
2012-02-29 13:37 ` [Qemu-devel] [PATCH 6/6] add mirroring to blockdev-transaction Paolo Bonzini
2012-02-29 19:47 ` Eric Blake
2012-03-01 6:46 ` Paolo Bonzini
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