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 "qemu/osdep.h"
  13 #include <glib.h>
  14
  15 #include "qom/object.h"
  16 #include "qemu/module.h"
  17
  18
  19 #define TYPE_TEST_IF "test-interface"
  20 #define TEST_IF_CLASS(klass) \
  21      OBJECT_CLASS_CHECK(TestIfClass, (klass), TYPE_TEST_IF)
  22 #define TEST_IF_GET_CLASS(obj) \
  23      OBJECT_GET_CLASS(TestIfClass, (obj), TYPE_TEST_IF)
  24 #define TEST_IF(obj) \
  25      INTERFACE_CHECK(TestIf, (obj), TYPE_TEST_IF)
  26
  27 typedef struct TestIf {
  28     Object parent_obj;
  29 } TestIf;
  30
  31 typedef struct TestIfClass {
  32     InterfaceClass parent_class;
  33
  34     uint32_t test;
  35 } TestIfClass;
  36
  37 static const TypeInfo test_if_info = {
  38     .name          = TYPE_TEST_IF,
  39     .parent        = TYPE_INTERFACE,
  40     .class_size = sizeof(TestIfClass),
  41 };
  42
  43 #define PATTERN 0xFAFBFCFD
  44
  45 static void test_class_init(ObjectClass *oc, void *data)
  46 {
  47     TestIfClass *tc = TEST_IF_CLASS(oc);
  48
  49     g_assert(tc);
  50     tc->test = PATTERN;
  51 }
  52
  53 #define TYPE_DIRECT_IMPL "direct-impl"
  54
  55 static const TypeInfo direct_impl_info = {
  56     .name = TYPE_DIRECT_IMPL,
  57     .parent = TYPE_OBJECT,
  58     .class_init = test_class_init,
  59     .interfaces = (InterfaceInfo[]) {
  60         { TYPE_TEST_IF },
  61         { }
  62     }
  63 };
  64
  65 #define TYPE_INTERMEDIATE_IMPL "intermediate-impl"
  66
  67 static const TypeInfo intermediate_impl_info = {
  68     .name = TYPE_INTERMEDIATE_IMPL,
  69     .parent = TYPE_DIRECT_IMPL,
  70 };
  71
  72 static void test_interface_impl(const char *type)
  73 {
  74     Object *obj = object_new(type);
  75     TestIf *iobj = TEST_IF(obj);
  76     TestIfClass *ioc = TEST_IF_GET_CLASS(iobj);
  77
  78     g_assert(iobj);
  79     g_assert(ioc->test == PATTERN);
  80 }
  81
  82 static void interface_direct_test(void)
  83 {
  84     test_interface_impl(TYPE_DIRECT_IMPL);
  85 }
  86
  87 static void interface_intermediate_test(void)
  88 {
  89     test_interface_impl(TYPE_INTERMEDIATE_IMPL);
  90 }
  91
  92 int main(int argc, char **argv)
  93 {
  94     g_test_init(&argc, &argv, NULL);
  95
  96     module_call_init(MODULE_INIT_QOM);
  97     type_register_static(&test_if_info);
  98     type_register_static(&direct_impl_info);
  99     type_register_static(&intermediate_impl_info);
 100
 101     g_test_add_func("/qom/interface/direct_impl", interface_direct_test);
 102     g_test_add_func("/qom/interface/intermediate_impl",
 103                     interface_intermediate_test);
 104
 105     return g_test_run();
 106 }