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Re: [Qemu-devel] [PATCH 5/8] qom: introduce QERR_PROPERTY_VALUE_OUT_OF_R

From: Paolo Bonzini
Subject: Re: [Qemu-devel] [PATCH 5/8] qom: introduce QERR_PROPERTY_VALUE_OUT_OF_RANGE
Date: Fri, 16 Dec 2011 18:00:12 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:7.0.1) Gecko/20110930 Thunderbird/7.0.1

On 12/16/2011 03:01 PM, Paolo Bonzini wrote:

I'd rather use generic errors when possible.  How about
VALUE_OUT_OF_RANGE and we can make the message "'%(item)' doesn't take
value..." and pass "%s.%s" % (device, property) for item.


I didn't do this in the end for two reasons.

First, that it is inconsistent with other errors from qdev properties. Current master does not raise them when properties are accessed via QOM, but my revised series does.

Second, that it is actually provides less structured information. There's no reason why a client should be expected to "know" that %(item) is in that form.


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