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Re: [Qemu-devel] [PATCH 4/8] io: add ability to associate an opaque "res

From: Eric Blake
Subject: Re: [Qemu-devel] [PATCH 4/8] io: add ability to associate an opaque "result" with with a task
Date: Thu, 5 Jan 2017 14:32:46 -0600
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.5.1

On 01/05/2017 10:03 AM, Daniel P. Berrange wrote:
> Currently there is no data associated with a successful
> task completion. This adds an opaque pointer to the task
> to store an arbitrary result.
> Signed-off-by: Daniel P. Berrange <address@hidden>
> ---
>  include/io/task.h | 27 +++++++++++++++++++++++++++
>  io/task.c         | 20 ++++++++++++++++++++
>  2 files changed, 47 insertions(+)

I suppose a different approach would have been changing QIOTaskFunc() to
have a void* return, but that would be more invasive.  Grabbing the
result separately from the task completing is a bit weird, but looks
like it will work.

Reviewed-by: Eric Blake <address@hidden>

Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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