[Libguestfs] [PATCH] v2v: support no socket for <listen type='socket'>

[Richard W.M. Jones]

On Mon, Mar 13, 2017 at 09:49:26AM +0100, Pino Toscano wrote:
> Support also a "socket" listen type with no explicitly specified socket
> (which will be generated by libvirt).
> 
> Updates commit a4adf48915c0e3e7f4e8b7bbdbb5ac622da1ac58.
> 
> Related to: RHBZ#1378022
> ---
>  v2v/create_libvirt_xml.ml | 4 +++-
>  v2v/parse_libvirt_xml.ml  | 4 ++--
>  v2v/types.ml              | 5 +++--
>  v2v/types.mli             | 2 +-
>  4 files changed, 9 insertions(+), 6 deletions(-)
> 
> diff --git a/v2v/create_libvirt_xml.ml b/v2v/create_libvirt_xml.ml
> index 19e0a52..c276109 100644
> --- a/v2v/create_libvirt_xml.ml
> +++ b/v2v/create_libvirt_xml.ml
> @@ -249,7 +249,9 @@ let create_libvirt_xml ?pool source target_buses guestcaps
>            let sub = e "listen" [ "type", "network"; "network", n ] [] in
>            append_child sub graphics
>         | LSocket s ->
> -          let sub = e "listen" [ "type", "socket"; "socket", s ] [] in
> +          let attrs = [ "type", "socket" ] @
> +            (match s with None -> [] | Some s -> [ "socket", s ]) in

Are the parens around match needed here?

ACK patch.

Rich.

> +          let sub = e "listen" attrs [] in
>            append_child sub graphics
>         | LNone ->
>            let sub = e "listen" [ "type", "none" ] [] in
> diff --git a/v2v/parse_libvirt_xml.ml b/v2v/parse_libvirt_xml.ml
> index 50bdf1c..edffd20 100644
> --- a/v2v/parse_libvirt_xml.ml
> +++ b/v2v/parse_libvirt_xml.ml
> @@ -109,8 +109,8 @@ let parse_libvirt_xml ?conn xml =
>              )
>            | Some "socket" ->
>              (match xpath_string "listen[1]/@socket" with
> -            | None -> LNoListen
> -            | Some n -> LSocket n
> +            | None -> LSocket None
> +            | Some n -> LSocket (Some n)
>              )
>            | Some "none" ->
>              LNone
> diff --git a/v2v/types.ml b/v2v/types.ml
> index 3c92357..d802e19 100644
> --- a/v2v/types.ml
> +++ b/v2v/types.ml
> @@ -85,7 +85,7 @@ and s_display_listen =
>    | LNoListen
>    | LAddress of string
>    | LNetwork of string
> -  | LSocket of string
> +  | LSocket of string option
>    | LNone
>  
>  and source_video = Source_other_video of string |
> @@ -232,7 +232,8 @@ and string_of_source_display { s_display_type = typ;
>      | LNoListen -> ""
>      | LAddress a -> sprintf " listening on address %s" a
>      | LNetwork n -> sprintf " listening on network %s" n
> -    | LSocket s -> sprintf " listening on Unix domain socket %s" s
> +    | LSocket (Some s) -> sprintf " listening on Unix domain socket %s" s
> +    | LSocket None -> sprintf " listening on automatically created Unix domain socket"
>      | LNone -> " listening on private fd"
>      )
>  
> diff --git a/v2v/types.mli b/v2v/types.mli
> index 6cd6190..31a974a 100644
> --- a/v2v/types.mli
> +++ b/v2v/types.mli
> @@ -142,7 +142,7 @@ and s_display_listen =
>    | LNoListen                      (** No parseable <listen/> element. *)
>    | LAddress of string             (** Listen address. *)
>    | LNetwork of string             (** Listen network. *)
> -  | LSocket of string              (** Listen Unix domain socket. *)
> +  | LSocket of string option       (** Listen Unix domain socket. *)
>    | LNone                          (** <listen type='none'> *)
>  
>  (** Video adapter model. *)
> -- 
> 2.9.3
> 
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-- 
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