xen/pvcalls: implement poll command

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Implement poll on passive sockets by requesting a delayed response with
mappass->reqcopy, and reply back when there is data on the passive
socket.

Poll on active socket is unimplemented as by the spec, as the frontend
should just wait for events and check the indexes on the indexes page.

Only support one outstanding poll (or accept) request for every passive
socket at any given time.

[ boris: fixed long lines ]

Signed-off-by: Stefano Stabellini <stefano@aporeto.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
CC: boris.ostrovsky@oracle.com
CC: jgross@suse.com
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>

...

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Stefano Stabellini 2017-07-06 11:01:07 -07:00 • committed by Boris Ostrovsky

parent 6f474e7116

commit 3cf33a587d

1 changed files with 74 additions and 1 deletions

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75

drivers/xen/pvcalls-back.c

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