[libgovirt] Add OvirtResource::add_rest_params

[Christophe Fergeau <teuf src gnome org>]

commit b0e2691136d357dfa45aa359f35dc90edca985c7
Author: Christophe Fergeau <cfergeau redhat com>
Date:   Thu May 22 17:28:15 2014 +0200

    Add OvirtResource::add_rest_params
    
    This virtual method (wrapped by ovirt_resource_add_rest_params) is used
    by OvirtResourceRestCall to let classes deriving from OvirtResource add
    some class-specific arguments to the OvirtResourceRestCall that is going
    to be run.
    
    This will be used by OvirtCdrom to append a ";current" to the request it
    makes in order to only manage the current cdrom image, not the one which
    was set at boot time.

 govirt/ovirt-resource-private.h   |    4 +++-
 govirt/ovirt-resource-rest-call.c |    1 +
 govirt/ovirt-resource.c           |   15 +++++++++++++++
 govirt/ovirt-resource.h           |   10 ++++++++--
 4 files changed, 27 insertions(+), 3 deletions(-)
---
diff --git a/govirt/ovirt-resource-private.h b/govirt/ovirt-resource-private.h
index 33e3543..ff4e705 100644
--- a/govirt/ovirt-resource-private.h
+++ b/govirt/ovirt-resource-private.h
@@ -23,7 +23,7 @@
 #define __OVIRT_RESOURCE_PRIVATE_H__
 
 #include <ovirt-resource.h>
-#include <ovirt-rest-call.h>
+#include <ovirt-resource-rest-call.h>
 
 G_BEGIN_DECLS
 
@@ -48,6 +48,8 @@ void ovirt_resource_invoke_action_async(OvirtResource *resource,
 gboolean ovirt_resource_action_finish(OvirtResource *resource,
                                       GAsyncResult *result,
                                       GError **err);
+void ovirt_resource_add_rest_params(OvirtResource *resource,
+                                    RestProxyCall *call);
 
 G_END_DECLS
 
diff --git a/govirt/ovirt-resource-rest-call.c b/govirt/ovirt-resource-rest-call.c
index 5f82c47..6d3c0fd 100644
--- a/govirt/ovirt-resource-rest-call.c
+++ b/govirt/ovirt-resource-rest-call.c
@@ -138,6 +138,7 @@ static gboolean ovirt_resource_rest_call_class_serialize_params(RestProxyCall *c
         *content_len = 0;
     }
 
+    ovirt_resource_add_rest_params(self->priv->resource, self);
     params = rest_proxy_call_get_params(call);
     if (!rest_params_are_strings(params)) {
         g_set_error(error, OVIRT_REST_CALL_ERROR, 0,
diff --git a/govirt/ovirt-resource.c b/govirt/ovirt-resource.c
index 3d223f4..0d4d897 100644
--- a/govirt/ovirt-resource.c
+++ b/govirt/ovirt-resource.c
@@ -27,10 +27,12 @@
 #include <rest/rest-xml-node.h>
 #include <rest/rest-xml-parser.h>
 
+#define GOVIRT_UNSTABLE_API_ABI
 #include "govirt-private.h"
 #include "ovirt-error.h"
 #include "ovirt-proxy-private.h"
 #include "ovirt-resource.h"
+#undef GOVIRT_UNSTABLE_API_ABI
 
 #define OVIRT_RESOURCE_GET_PRIVATE(obj)                         \
         (G_TYPE_INSTANCE_GET_PRIVATE((obj), OVIRT_TYPE_RESOURCE, OvirtResourcePrivate))
@@ -926,3 +928,16 @@ gboolean ovirt_resource_refresh(OvirtResource *resource,
 
     return success;
 }
+
+void ovirt_resource_add_rest_params(OvirtResource *resource,
+                                    RestProxyCall *call)
+{
+    OvirtResourceClass *klass;
+
+    g_return_val_if_fail(OVIRT_IS_RESOURCE(resource), NULL);
+    g_return_if_fail(OVIRT_IS_RESOURCE_REST_CALL(call));
+
+    klass = OVIRT_RESOURCE_GET_CLASS(resource);
+    if (klass->to_xml != NULL)
+        klass->add_rest_params(resource, call);
+}
diff --git a/govirt/ovirt-resource.h b/govirt/ovirt-resource.h
index 23e019c..916af8b 100644
--- a/govirt/ovirt-resource.h
+++ b/govirt/ovirt-resource.h
@@ -25,6 +25,7 @@
 #include <gio/gio.h>
 #include <glib-object.h>
 #include <govirt/ovirt-types.h>
+#include <rest/rest-proxy-call.h>
 #include <rest/rest-xml-node.h>
 
 G_BEGIN_DECLS
@@ -57,8 +58,13 @@ struct _OvirtResourceClass
                               RestXmlNode *node,
                               GError **error);
     char *(*to_xml)(OvirtResource *resource);
-
-    gpointer padding[19];
+#ifdef GOVIRT_UNSTABLE_API_ABI
+    void (*add_rest_params)(OvirtResource *resource,
+                            RestProxyCall *call);
+#else
+    gpointer padding0;
+#endif
+    gpointer padding[18];
 };
 
 GType ovirt_resource_get_type(void);