[gnome-boxes] os-database: Make use of compare_cpu_architectures()

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit a1d78572b0b318cd92cca29d5cfe47bbf0d3971d
Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
Date:   Tue Feb 5 23:02:44 2013 +0200

    os-database: Make use of compare_cpu_architectures()
    
    Make use of compare_cpu_architectures() function when finding
    minimum/recommended resources for an OS.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=688333

 src/os-database.vala |   16 +++++++++++++---
 1 files changed, 13 insertions(+), 3 deletions(-)
---
diff --git a/src/os-database.vala b/src/os-database.vala
index 88df742..2853647 100644
--- a/src/os-database.vala
+++ b/src/os-database.vala
@@ -139,9 +139,7 @@ private class Boxes.OSDatabase : GLib.Object {
         if (prefs.length <= 0)
             return null;
 
-        var filter = new Filter ();
-        filter.add_constraint (RESOURCES_PROP_ARCHITECTURE, prefs[0]);
-        var filtered = (list as Osinfo.List).new_filtered (filter) as ResourcesList;
+        var filtered = filter_resources_list_by_arch (list, prefs[0]);
         if (filtered.get_length () <= 0)
             return get_prefered_resources (list, prefs[1:prefs.length]);
         else
@@ -150,6 +148,18 @@ private class Boxes.OSDatabase : GLib.Object {
             return filtered.get_nth (0) as Resources;
     }
 
+    private ResourcesList filter_resources_list_by_arch (ResourcesList list, string arch) {
+        var new_list = new ResourcesList ();
+        foreach (var entity in list.get_elements ()) {
+            var resources = entity as Resources;
+            var compatibility = compare_cpu_architectures (arch, resources.architecture);
+            if (compatibility == CPUArchCompatibity.IDENTICAL || compatibility == 
CPUArchCompatibity.COMPATIBLE)
+                new_list.add (resources);
+        }
+
+        return new_list;
+    }
+
     private async bool ensure_db_loaded () {
         if (db != null)
             return true;