Re: [Qemu-discuss] [Qemu-devel] For unix domain socket, will only one client could connect to this socket?

[Daniel P. Berrange]

On Thu, Jul 27, 2017 at 06:37:32PM +0800, Sam wrote:
> Hi all,
> 
> I'm working on qemu-qga, and I want to send qmp command from this unix
> socket, but it hanged there(no response), I don't know if it's connect
> failed or something?
> 
> address@hidden ~]# socat
> > /opt/cloud/workspace/servers/f6fdd093-383b-444e-9bcf-dfa81794d465/qga.sock
> > readline
> > {"execute": "guest-execute", "session": "4768", "arguments": {"commands":
> > [{"command": "/bin/sh", "arguments": ["sh", "-c", "ping -c 1
> > 172.16.0.1"]}]}}

Pointless use of shell there. Just directly run ping

  {"command": "/bin/ping", "arguments": ["-c", "1", "172.16.0.1"]}

> 
> 
> My question is, for tcp or udp socket, many client could connect to one
> server, is unix socket the same? Thank you~

You can only ever have a single client connected, even with tcp/unix
sockets backends.

Regards,
Daniel
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