[CRIU] [criu]launch page-server in swrk mode

[Nikita Spiridonov]

On Tue, 2016-03-08 at 20:16 +0800, Dengguangxing wrote:
> Hi all,
> 
> I am trying to lauch a page-server through criu swrk mode.
> 
> The page-server will always exit with one pre-dump/dump call(with page-server opts).
> I've tried to set keep_open flag as true in rpc request. and it just acts the same way.
> 
> Am I wrong with the page-server swrk mode? How to lauch a page-server daemon in swrk mode
> and make it survive serveral pre-dumps?
> 
> Thanks!
> Best Regards
> Deng
> 
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Single swrk process must be able to handle multiple page-server
requests, it works for me (at least with criu-1.8).

You can find example of usage in p.haul project. It is written on
python, but use same rpc protocol.

criu exec in swrk mode (criu_conn.__init__ function):
https://github.com/xemul/p.haul/blob/master/phaul/criu_api.py

page-server request creation (make_page_server_req function):
https://github.com/xemul/p.haul/blob/master/phaul/criu_req.py