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Re: [PATCH v7 02/13] qtest: Reintroduce qtest_qmp_receive

From: Thomas Huth
Subject: Re: [PATCH v7 02/13] qtest: Reintroduce qtest_qmp_receive
Date: Mon, 12 Oct 2020 15:49:48 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.6.0

On 12/10/2020 15.47, Paolo Bonzini wrote:
> On 12/10/20 13:14, Thomas Huth wrote:
>>> +/**
>>> + * qtest_qmp_receive:
>>> + * @s: #QTestState instance to operate on.
>>> + *
>>> + * Reads a QMP message from QEMU and returns the response.
>>> + * Buffers all the events received meanwhile, until a
>>> + * call to qtest_qmp_eventwait
>>> + */
>>> +QDict *qtest_qmp_receive(QTestState *s);
>> Re-introducing qtest_qmp_receive() with different behavior than before will
>> likely make backports of other later patches a pain, and might also break
>> other patches that use this function but are not merged yet. Could you
>> please use a different name for this function instead? Maye
>> qtest_qmp_receive_buffered() or something like that?
> We chose to use the same name because the new version generally is the
> one you want and, except for the handling of events, is exactly the same
> as before.  In other words, I'm treating the new semantics more as a
> bugfix than a feature.
> The only trap that backports of later patches could fall into is if they
> want to look at events, but it would be caught easily because the test
> would fail.

Ok, thanks for the explanation! ... but I think it might be good to have
this information in the patch description, though.


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