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Date: Mon, 16 Jul 2012 10:19:23 +0200
From: Paolo Bonzini <pbonzini@redhat.com>
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Subject: Re: [Qemu-devel] [RFC] introduce a dynamic library to expose qemu
 block API
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To: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Cc: Anthony Liguori <aliguori@us.ibm.com>, Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>, Michael Tokarev <mjt@tls.msk.ru>, qemu-devel@nongnu.org, =?UTF-8?B?TGx1w61z?= <xscript@gmx.net>, Blue Swirl <blauwirbel@gmail.com>, Stefan Weil <weil@mail.berlios.de>, Hannes Reinecke <hare@suse.de>

Il 16/07/2012 10:16, Wenchao Xia ha scritto:
>>
>   Really thanks for the investigation, I paid quite sometime to dig out
> which license is compatible to LGPL, this have sorted it out.
>   The coroutine and structure inside is quite a challenge.

Coroutines are really just a small complication in the program flow if
all you support is synchronous access to files (i.e. no HTTP etc.).
Their usage should be completely transparent.

> What about
> provide the library first in nbd + sync access, and waiting for the
> library employer response? If it is good to use, then replace implement
> code to native qemu block layer code, change code's license, while keep
> API unchanged.

You can start by proposing the API.

Paolo