qemu/tests/check-qom-interface.c

   1 /*
   2  * QOM interface test.
   3  *
   4  * Copyright (C) 2013 Red Hat Inc.
   5  *
   6  * Authors:
   7  *  Igor Mammedov <imammedo@redhat.com>
   8  *
   9  * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
  10  * See the COPYING.LIB file in the top-level directory.
  11  */
  12 #include <glib.h>
  13
  14 #include "qom/object.h"
  15 #include "qemu/module.h"
  16
  17
  18 #define TYPE_TEST_IF "test-interface"
  19 #define TEST_IF_CLASS(klass) \
  20      OBJECT_CLASS_CHECK(TestIfClass, (klass), TYPE_TEST_IF)
  21 #define TEST_IF_GET_CLASS(obj) \
  22      OBJECT_GET_CLASS(TestIfClass, (obj), TYPE_TEST_IF)
  23 #define TEST_IF(obj) \
  24      INTERFACE_CHECK(TestIf, (obj), TYPE_TEST_IF)
  25
  26 typedef struct TestIf {
  27     Object parent_obj;
  28 } TestIf;
  29
  30 typedef struct TestIfClass {
  31     InterfaceClass parent_class;
  32
  33     uint32_t test;
  34 } TestIfClass;
  35
  36 static const TypeInfo test_if_info = {
  37     .name          = TYPE_TEST_IF,
  38     .parent        = TYPE_INTERFACE,
  39     .class_size = sizeof(TestIfClass),
  40 };
  41
  42 #define PATTERN 0xFAFBFCFD
  43
  44 static void test_class_init(ObjectClass *oc, void *data)
  45 {
  46     TestIfClass *tc = TEST_IF_CLASS(oc);
  47
  48     g_assert(tc);
  49     tc->test = PATTERN;
  50 }
  51
  52 #define TYPE_DIRECT_IMPL "direct-impl"
  53
  54 static const TypeInfo direct_impl_info = {
  55     .name = TYPE_DIRECT_IMPL,
  56     .parent = TYPE_OBJECT,
  57     .class_init = test_class_init,
  58     .interfaces = (InterfaceInfo[]) {
  59         { TYPE_TEST_IF },
  60         { }
  61     }
  62 };
  63
  64 #define TYPE_INTERMEDIATE_IMPL "intermediate-impl"
  65
  66 static const TypeInfo intermediate_impl_info = {
  67     .name = TYPE_INTERMEDIATE_IMPL,
  68     .parent = TYPE_DIRECT_IMPL,
  69 };
  70
  71 static void test_interface_impl(const char *type)
  72 {
  73     Object *obj = object_new(type);
  74     TestIf *iobj = TEST_IF(obj);
  75     TestIfClass *ioc = TEST_IF_GET_CLASS(iobj);
  76
  77     g_assert(iobj);
  78     g_assert(ioc->test == PATTERN);
  79 }
  80
  81 static void interface_direct_test(void)
  82 {
  83     test_interface_impl(TYPE_DIRECT_IMPL);
  84 }
  85
  86 static void interface_intermediate_test(void)
  87 {
  88     test_interface_impl(TYPE_INTERMEDIATE_IMPL);
  89 }
  90
  91 int main(int argc, char **argv)
  92 {
  93     g_test_init(&argc, &argv, NULL);
  94
  95     module_call_init(MODULE_INIT_QOM);
  96     type_register_static(&test_if_info);
  97     type_register_static(&direct_impl_info);
  98     type_register_static(&intermediate_impl_info);
  99
 100     g_test_add_func("/qom/interface/direct_impl", interface_direct_test);
 101     g_test_add_func("/qom/interface/intermediate_impl",
 102                     interface_intermediate_test);
 103
 104     return g_test_run();
 105 }