[Xen-API] [PATCH 4 of 8] [CA-39589] Refactoring: extracts out the "handle_death" function from a deeply nested block

[Jonathan Knowles <jonathan.knowles@xxxxxxxxxxxxx>]

# HG changeset patch
# User Jonathan Knowles <jonathan.knowles@xxxxxxxxxxxxx>
# Date 1269859682 -3600
# Node ID af259cf5d310d9f44cc7380de6ed5117ab7c38fa
# Parent  72d353d9ebe73fe82bcec06ea283a0fefdcba512
[CA-39589] Refactoring: extracts out the "handle_death" function from a deeply 
nested block.

Signed-off-by: Jonathan Knowles <jonathan.knowles@xxxxxxxxxxxxx>
Acked-by: Marcus Granado <Marcus.Granado@xxxxxxxxxxxxx>

diff -r 72d353d9ebe7 -r af259cf5d310 ocaml/xapi/vmops.ml
--- a/ocaml/xapi/vmops.ml       Mon Mar 29 11:48:01 2010 +0100
+++ b/ocaml/xapi/vmops.ml       Mon Mar 29 11:48:02 2010 +0100
@@ -900,6 +900,18 @@
        let max = Int64.to_int (Int64.div max 1024L) in
        let suspend_SR = Helpers.choose_suspend_sr ~__context ~vm in
        let required_space = get_suspend_space __context vm in
+       let handle_death = function
+               | Xal.Suspended ->
+                       () (* good *)
+               | Xal.Crashed ->
+                       raise (Api_errors.Server_error(Api_errors.vm_crashed, [ 
Ref.string_of vm ]))
+               | Xal.Rebooted ->
+                       raise (Api_errors.Server_error(Api_errors.vm_rebooted, 
[ Ref.string_of vm ]))
+               | Xal.Halted | Xal.Vanished ->
+                       raise (Api_errors.Server_error(Api_errors.vm_halted, [ 
Ref.string_of vm ]))
+               | Xal.Shutdown x ->
+                       failwith (Printf.sprintf "Expected domain shutdown 
reason: %d" x)
+       in
        Xapi_xenops_errors.handle_xenops_error
                (fun () ->
                        with_xc_and_xs
@@ -933,19 +945,9 @@
                                                                                
                Domain.suspend ~xc ~xs ~hvm domid fd []
                                                                                
                        ~progress_callback:progress_cb
                                                                                
                        (fun () ->
-                                                                               
                                match clean_shutdown_with_reason ~xal
+                                                                               
                                handle_death (clean_shutdown_with_reason ~xal
                                                                                
                                        ~__context ~self:vm domid
-                                                                               
                                        Domain.Suspend with
-                                                                               
                                        | Xal.Suspended -> () (* good *)
-                                                                               
                                        | Xal.Crashed ->
-                                                                               
                                                raise 
(Api_errors.Server_error(Api_errors.vm_crashed, [ Ref.string_of vm ]))
-                                                                               
                                        | Xal.Rebooted ->
-                                                                               
                                                raise 
(Api_errors.Server_error(Api_errors.vm_rebooted, [ Ref.string_of vm ]))
-                                                                               
                                        | Xal.Halted
-                                                                               
                                        | Xal.Vanished ->
-                                                                               
                                                raise 
(Api_errors.Server_error(Api_errors.vm_halted, [ Ref.string_of vm ]))
-                                                                               
                                        | Xal.Shutdown x ->
-                                                                               
                                                failwith (Printf.sprintf 
"Expected domain shutdown reason: %d" x)));
+                                                                               
                                        Domain.Suspend)));
                                                                                
(* If the suspend succeeds, set the suspend_VDI *)
                                                                                
Db.VM.set_suspend_VDI ~__context ~self:vm ~value:vdi_ref;)
                                                                        (fun () 
-> Unix.close fd);
1 file changed, 14 insertions(+), 12 deletions(-)
ocaml/xapi/vmops.ml |   26 ++++++++++++++------------

xen-api.hg-8.patch
Description: Text Data

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