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Re: [PATCH] PoC: Rust binding for QAPI (qemu-ga only, for now)
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From: |
Markus Armbruster |
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Subject: |
Re: [PATCH] PoC: Rust binding for QAPI (qemu-ga only, for now) |
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Date: |
Tue, 22 Sep 2020 16:59:56 +0200 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/27.1 (gnu/linux) |
Paolo Bonzini <pbonzini@redhat.com> writes:
> On 21/09/20 11:16, Markus Armbruster wrote:
>> QMP is an *external* interface.
>>
>> It supports compatible evolution: we can make certain kinds of changes
>> without affecting clients. These include:
>>
>> * Adding optional arguments
>>
>> * Adding results
>>
>> * Adding values to an enumeration type, branches to a union or
>> alternate
>>
>> * Reordering members of enumerations, structs, unions
>>
>> * Turning an argument type into an alternate with the old type as branch
>>
>> We've made use of this extensively. See also
>> docs/devel/qapi-code-gen.txt section "Compatibility considerations."
>>
>> How do such changes affect clients of the proposed D-Bus interface?
>
> All this makes me think that Q{MP,OM,API} badly needs rationale
> documentation.
docs/devel/qapi-code-gen.txt is fairly thorough (>8000 words), but it
doesn't try to serve as rationale documentation.
- Re: [PATCH] PoC: Rust binding for QAPI (qemu-ga only, for now), (continued)
Re: [PATCH] PoC: Rust binding for QAPI (qemu-ga only, for now), Daniel P . Berrangé, 2020/09/11
Re: [PATCH] PoC: Rust binding for QAPI (qemu-ga only, for now), Marc-André Lureau, 2020/09/11
Re: [PATCH] PoC: Rust binding for QAPI (qemu-ga only, for now), Markus Armbruster, 2020/09/21
- Re: [PATCH] PoC: Rust binding for QAPI (qemu-ga only, for now), Paolo Bonzini, 2020/09/21
- Re: [PATCH] PoC: Rust binding for QAPI (qemu-ga only, for now),
Markus Armbruster <=
- Re: [PATCH] PoC: Rust binding for QAPI (qemu-ga only, for now), Marc-André Lureau, 2020/09/21
- Re: [PATCH] PoC: Rust binding for QAPI (qemu-ga only, for now), Markus Armbruster, 2020/09/22
- Re: [PATCH] PoC: Rust binding for QAPI (qemu-ga only, for now), Marc-André Lureau, 2020/09/22
- Re: [PATCH] PoC: Rust binding for QAPI (qemu-ga only, for now), Paolo Bonzini, 2020/09/22
- Re: [PATCH] PoC: Rust binding for QAPI (qemu-ga only, for now), Marc-André Lureau, 2020/09/29
- Re: [PATCH] PoC: Rust binding for QAPI (qemu-ga only, for now), Paolo Bonzini, 2020/09/29
- Re: [PATCH] PoC: Rust binding for QAPI (qemu-ga only, for now), Marc-André Lureau, 2020/09/29
- Re: [PATCH] PoC: Rust binding for QAPI (qemu-ga only, for now), Paolo Bonzini, 2020/09/29
- Re: [PATCH] PoC: Rust binding for QAPI (qemu-ga only, for now), Marc-André Lureau, 2020/09/29
- Re: [PATCH] PoC: Rust binding for QAPI (qemu-ga only, for now), Markus Armbruster, 2020/09/30