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Re: [Qemu-devel] [PATCH 1/2] object: Add can_be_deleted callback to Type

From: Lin Ma
Subject: Re: [Qemu-devel] [PATCH 1/2] object: Add can_be_deleted callback to TypeInfo and TypeImpl
Date: Mon, 23 Mar 2015 23:47:28 +0800
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.2.0

在 2015年03月23日 20:06, Paolo Bonzini 写道:

On 23/03/2015 11:36, Peter Crosthwaite wrote:
I don't think TypeInfo is the right place for this. You can however
define function hooks for Object in ObjectClass. See the unparent
field of ObjectClass for a precedent.
In this case, the right place could be UserCreatable.  Alternatively...
Well... Because I'm not familiar with qom very much, Let me dig more details about UserCreatable first :-)

But is a better way to do this to add error handling to
object_unparent API and override object_unparent for your device in
question to throw the error? Then your change doesn't have to be
limited to QMP.
... this is also a good choice.


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