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Re: [Qemu-devel] [PATCH 02/15] colo-compare: implement the process of ch

From: Hailiang Zhang
Subject: Re: [Qemu-devel] [PATCH 02/15] colo-compare: implement the process of checkpoint
Date: Thu, 23 Feb 2017 09:02:22 +0800
User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.5.1


On 2017/2/22 17:31, Zhang Chen wrote:

On 02/22/2017 11:42 AM, zhanghailiang wrote:
While do checkpoint, we need to flush all the unhandled packets,
By using the filter notifier mechanism, we can easily to notify
every compare object to do this process, which runs inside
of compare threads as a coroutine.

Hi~ Jason and Hailiang.

I will send a patch set later about colo-compare notify mechanism for
Xen like this patch.
I want to add a new chardev socket way in colo-comapre connect to Xen
colo, for notify
checkpoint or failover, Because We have no choice to use this way
communicate with Xen codes.
That's means we will have two notify mechanism.
What do you think about this?

I don't think you need another mechanism, what you need to do is to
realize a qmp command which calls colo_notify_compares_event(),
It will not  return until the event (checkpoint or failover) be
handled by all compares. Will this satisfy your requirement ?


Zhang Chen

Cc: Jason Wang <address@hidden>
Signed-off-by: zhanghailiang <address@hidden>
Signed-off-by: Zhang Chen <address@hidden>
   net/colo-compare.c | 72 
   net/colo-compare.h | 20 +++++++++++++++
   2 files changed, 92 insertions(+)
   create mode 100644 net/colo-compare.h

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