Re: [Qemu-devel] [PATCH 01/11] QMP: Introduce specification file

[Jamie Lokier]

Avi Kivity wrote:
> On 06/24/2009 06:57 PM, Filip Navara wrote:
> >Given the fact that we practically have the library for XDR it would
> >be very easy to build Sun RPC server on top of it. So my vote is for
> >SunRPC.
> >   
> 
> My experience with SunRPC (NFS) has been pretty bad.  It may have been 
> due to implementation details, not to the spec itself, but it definitely 
> left a bad taste in my mouth.  Also, I don't see a SunRPC implementation 
> for Python, which (along with similar languages) is an ideal platform 
> for controlling qemu.  I'd rather have something more modern.

SunRPC works, and it's fine if you always access it through utilities,
like say a C command-line client.  Hiding the SunRPC aspect :-)

It's pretty fast too, so good for things like network filesystems.

But it's a real pain to use from scripts if you don't have a pre-built
utility which implements all application RPC functions already.

The basic problem is needing to create and compile C code - for all
clients as well as the server - each time an RPC function is added or
changed.

QEMU's monitor is already much easier to use than that.

When a new monitor command is added, you can use it from scripts as
trivial one-liner text commands, assuming you already have a way to
connect to the monitor.

-- Jamie