qemu

FORK: QEMU emulator
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check-qom-interface.c (2340B)

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