From: Anthony Liguori <anthony@codemonkey.ws>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: peter.maydell@linaro.org, aliguori@us.ibm.com,
qemu-devel@nongnu.org,
"Peter A. G. Crosthwaite" <peter.crosthwaite@petalogix.com>,
paul@codesourcery.com, edgar.iglesias@gmail.com,
"Andreas Färber" <afaerber@suse.de>,
john.williams@petalogix.com, avi@redhat.com
Subject: Re: [Qemu-devel] [RFC v0 5/8] object: make interfaces concrete
Date: Wed, 13 Jun 2012 08:36:19 -0500 [thread overview]
Message-ID: <4FD89753.2050904@codemonkey.ws> (raw)
In-Reply-To: <4FD896C1.4030905@redhat.com>
On 06/13/2012 08:33 AM, Paolo Bonzini wrote:
> Il 13/06/2012 15:30, Anthony Liguori ha scritto:
>> Anyway, I don't like the idea of making interfaces concrete. That means
>> that a user could directly instantiate an interface which doesn't make a
>> lot of sense.
>
> Concrete doesn't mean "instantiatable by the user". It means
> "instantiatable period".
Interfaces are not supposed to be instantiatable by anyone. The fact that
object_new() is used to create the interface is an internal implementation detail.
Interfaces are stateless and by definition, never have an implementation on
their own. So object_new() of an interface type directly results in a useless
object.
Regards,
Anthony Liguori
>
> Paolo
>
next prev parent reply other threads:[~2012-06-13 13:36 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-13 9:38 [Qemu-devel] [RFC v0 0/8] QOMify AXI stream for Xilinx AXI ethernet/DMA Peter A. G. Crosthwaite
2012-06-13 9:38 ` [Qemu-devel] [RFC v0 1/8] qom: revamp interfaces Peter A. G. Crosthwaite
2012-06-13 9:38 ` [Qemu-devel] [RFC v0 2/8] xilinx: remove PROP_PTR properties Peter A. G. Crosthwaite
2012-06-13 9:38 ` [Qemu-devel] [RFC v0 3/8] xilinx_axidma: Added missing TypeInfo Peter A. G. Crosthwaite
2012-06-13 10:05 ` Paolo Bonzini
2012-06-13 9:38 ` [Qemu-devel] [RFC v0 4/8] object: create default canonical paths for orphans Peter A. G. Crosthwaite
2012-06-13 10:08 ` Paolo Bonzini
2012-06-13 9:38 ` [Qemu-devel] [RFC v0 5/8] object: make interfaces concrete Peter A. G. Crosthwaite
2012-06-13 10:03 ` Paolo Bonzini
2012-06-13 10:28 ` Andreas Färber
2012-06-13 10:42 ` Paolo Bonzini
2012-06-13 12:59 ` Andreas Färber
2012-06-13 13:02 ` Paolo Bonzini
2012-06-13 13:30 ` Anthony Liguori
2012-06-13 13:33 ` Paolo Bonzini
2012-06-13 13:36 ` Anthony Liguori [this message]
2012-06-13 13:38 ` Paolo Bonzini
2012-06-13 13:50 ` Anthony Liguori
2012-06-13 20:22 ` Edgar E. Iglesias
2012-06-13 9:38 ` [Qemu-devel] [RFC v0 6/8] xilinx dont cast to interface types with links Peter A. G. Crosthwaite
2012-06-13 10:41 ` Paolo Bonzini
2012-06-13 10:55 ` Avi Kivity
2012-06-13 10:59 ` Paolo Bonzini
2012-06-13 11:02 ` Avi Kivity
2012-06-13 11:05 ` Paolo Bonzini
2012-06-13 11:08 ` Avi Kivity
2012-06-13 13:55 ` Anthony Liguori
2012-06-13 9:38 ` [Qemu-devel] [RFC v0 7/8] petalogix_ml605_mmu: fixed qdev create for dma Peter A. G. Crosthwaite
2012-06-13 9:38 ` [Qemu-devel] [RFC v0 8/8] axidma: renamed interconnect to axi-stream Peter A. G. Crosthwaite
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