qom/container.c

   1 /*
   2  * Device Container
   3  *
   4  * Copyright IBM, Corp. 2012
   5  *
   6  * Authors:
   7  *  Anthony Liguori   <aliguori@us.ibm.com>
   8  *
   9  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  10  * See the COPYING file in the top-level directory.
  11  */
  12
  13 #include "qemu/osdep.h"
  14 #include "qom/object.h"
  15 #include "qemu/module.h"
  16
  17 static const TypeInfo container_info = {
  18     .name          = "container",
  19     .instance_size = sizeof(Object),
  20     .parent        = TYPE_OBJECT,
  21 };
  22
  23 static void container_register_types(void)
  24 {
  25     type_register_static(&container_info);
  26 }
  27
  28 Object *container_get(Object *root, const char *path)
  29 {
  30     Object *obj, *child;
  31     gchar **parts;
  32     int i;
  33
  34     parts = g_strsplit(path, "/", 0);
  35     assert(parts != NULL && parts[0] != NULL && !parts[0][0]);
  36     obj = root;
  37
  38     for (i = 1; parts[i] != NULL; i++, obj = child) {
  39         child = object_resolve_path_component(obj, parts[i]);
  40         if (!child) {
  41             child = object_new("container");
  42             object_property_add_child(obj, parts[i], child, NULL);
  43             object_unref(child);
  44         }
  45     }
  46
  47     g_strfreev(parts);
  48
  49     return obj;
  50 }
  51
  52
  53 type_init(container_register_types)