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Re: [Xen-devel] [PATCH v2 COLOPre 10/13] tools/libxl: Add back channel to allow migration target send data back



Ian Campbell writes ("Re: [Xen-devel] [PATCH v2 COLOPre 10/13] tools/libxl: Add 
back channel to allow migration target send data back"):
> On Mon, 2015-06-15 at 09:38 +0800, Yang Hongyang wrote:
> > Then I'll just extend the params of libxl_domain_create_restore().
> 
> One question first: is it really to be expected that send_fd and recv_fd
> will be different, as opposed to the bidirectional data going over the
> same socket?

If this is supposed to be able to work over a pipe, and ssh, then yes.

Even if you give ssh copies of the same socketpair fd on 0 and 1,
sshd's child gets ends of two different pipes on 0 and 1.

Ian.

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