Correct typos in the storage interface's phantom types

A connection is either read/write (type rw = [`R|`W]) or read/only
(type ro = [`R]). A function which requires the ability to write
needs to take a parameter [> `W] rather than [`W] (which would
correspond to a write-only connection).

We can now use a read/write connection to call:
  Pool.set_autostart
  Volume.create_xml
  Volume.delete

Signed-off-by: David Scott <dave.scott@eu.citrix.com>

diff --git a/libvirt/libvirt.ml b/libvirt/libvirt.ml
index 07542a9..443b22b 100644 (file)
--- a/libvirt/libvirt.ml
+++ b/libvirt/libvirt.ml
@@ -536,7 +536,7 @@ struct
   external get_info : [`R] t -> pool_info = "ocaml_libvirt_storage_pool_get_info"
   external get_xml_desc : [`R] t -> xml = "ocaml_libvirt_storage_pool_get_xml_desc"
   external get_autostart : [`R] t -> bool = "ocaml_libvirt_storage_pool_get_autostart"
-  external set_autostart : [`W] t -> bool -> unit = "ocaml_libvirt_storage_pool_set_autostart"
+  external set_autostart : [>`W] t -> bool -> unit = "ocaml_libvirt_storage_pool_set_autostart"
   external num_of_volumes : [`R] t -> int = "ocaml_libvirt_storage_pool_num_of_volumes"
   external list_volumes : [`R] t -> int -> string array = "ocaml_libvirt_storage_pool_list_volumes"
   external const : [>`R] t -> ro t = "%identity"
@@ -562,8 +562,8 @@ struct
   external get_path : [`R] t -> string = "ocaml_libvirt_storage_vol_get_path"
   external get_info : [`R] t -> vol_info = "ocaml_libvirt_storage_vol_get_info"
   external get_xml_desc : [`R] t -> xml = "ocaml_libvirt_storage_vol_get_xml_desc"
-  external create_xml : [`W] Pool.t -> xml -> unit = "ocaml_libvirt_storage_vol_create_xml"
-  external delete : [`W] t -> unit = "ocaml_libvirt_storage_vol_delete"
+  external create_xml : [>`W] Pool.t -> xml -> unit = "ocaml_libvirt_storage_vol_create_xml"
+  external delete : [>`W] t -> unit = "ocaml_libvirt_storage_vol_delete"
   external free : [>`R] t -> unit = "ocaml_libvirt_storage_vol_free"
   external const : [>`R] t -> ro t = "%identity"
 end

diff --git a/libvirt/libvirt.mli b/libvirt/libvirt.mli
index 5a288c0..70cc2c7 100644 (file)
--- a/libvirt/libvirt.mli
+++ b/libvirt/libvirt.mli
@@ -757,7 +757,7 @@ sig
     (** Get the XML description. *)
   val get_autostart : [`R] t -> bool
     (** Get the autostart flag for the storage pool. *)
-  val set_autostart : [`W] t -> bool -> unit
+  val set_autostart : [>`W] t -> bool -> unit
     (** Set the autostart flag for the storage pool. *)
 
   val num_of_volumes : [`R] t -> int
@@ -810,9 +810,9 @@ sig
   val get_xml_desc : [`R] t -> xml
     (** Get the XML description. *)
 
-  val create_xml : [`W] Pool.t -> xml -> unit
+  val create_xml : [>`W] Pool.t -> xml -> unit
     (** Create a storage volume. *)
-  val delete : [`W] t -> unit
+  val delete : [>`W] t -> unit
     (** Delete a storage volume. *)
   val free : [>`R] t -> unit
     (** Free a storage volume object in memory.