1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
|
/* GObject - GLib Type, Object, Parameter and Signal Library
* Copyright (C) 2005 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#undef G_LOG_DOMAIN
#define G_LOG_DOMAIN "TestReferences"
#undef G_DISABLE_ASSERT
#undef G_DISABLE_CHECKS
#undef G_DISABLE_CAST_CHECKS
#include <glib-object.h>
/* This test tests weak and toggle references
*/
static GObject *global_object;
static gboolean object_destroyed;
static gboolean weak_ref1_notified;
static gboolean weak_ref2_notified;
static gboolean toggle_ref1_weakened;
static gboolean toggle_ref1_strengthened;
static gboolean toggle_ref2_weakened;
static gboolean toggle_ref2_strengthened;
static gboolean toggle_ref3_weakened;
static gboolean toggle_ref3_strengthened;
/*
* TestObject, a parent class for TestObject
*/
static GType test_object_get_type (void);
#define TEST_TYPE_OBJECT (test_object_get_type ())
typedef struct _TestObject TestObject;
typedef struct _TestObjectClass TestObjectClass;
struct _TestObject
{
GObject parent_instance;
};
struct _TestObjectClass
{
GObjectClass parent_class;
};
G_DEFINE_TYPE (TestObject, test_object, G_TYPE_OBJECT)
static void
test_object_finalize (GObject *object)
{
object_destroyed = TRUE;
G_OBJECT_CLASS (test_object_parent_class)->finalize (object);
}
static void
test_object_class_init (TestObjectClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
object_class->finalize = test_object_finalize;
}
static void
test_object_init (TestObject *test_object)
{
}
static void
clear_flags (void)
{
object_destroyed = FALSE;
weak_ref1_notified = FALSE;
weak_ref2_notified = FALSE;
toggle_ref1_weakened = FALSE;
toggle_ref1_strengthened = FALSE;
toggle_ref2_weakened = FALSE;
toggle_ref2_strengthened = FALSE;
toggle_ref3_weakened = FALSE;
toggle_ref3_strengthened = FALSE;
}
static void
weak_ref1 (gpointer data,
GObject *object)
{
g_assert (object == global_object);
g_assert (data == GUINT_TO_POINTER (42));
weak_ref1_notified = TRUE;
}
static void
weak_ref2 (gpointer data,
GObject *object)
{
g_assert (object == global_object);
g_assert (data == GUINT_TO_POINTER (24));
weak_ref2_notified = TRUE;
}
static void
toggle_ref1 (gpointer data,
GObject *object,
gboolean is_last_ref)
{
g_assert (object == global_object);
g_assert (data == GUINT_TO_POINTER (42));
if (is_last_ref)
toggle_ref1_weakened = TRUE;
else
toggle_ref1_strengthened = TRUE;
}
static void
toggle_ref2 (gpointer data,
GObject *object,
gboolean is_last_ref)
{
g_assert (object == global_object);
g_assert (data == GUINT_TO_POINTER (24));
if (is_last_ref)
toggle_ref2_weakened = TRUE;
else
toggle_ref2_strengthened = TRUE;
}
static void
toggle_ref3 (gpointer data,
GObject *object,
gboolean is_last_ref)
{
g_assert (object == global_object);
g_assert (data == GUINT_TO_POINTER (34));
if (is_last_ref)
{
toggle_ref3_weakened = TRUE;
g_object_remove_toggle_ref (object, toggle_ref3, GUINT_TO_POINTER (34));
}
else
toggle_ref3_strengthened = TRUE;
}
int
main (int argc,
char *argv[])
{
GObject *object;
g_log_set_always_fatal (g_log_set_always_fatal (G_LOG_FATAL_MASK) |
G_LOG_LEVEL_WARNING |
G_LOG_LEVEL_CRITICAL);
/* Test basic weak reference operation
*/
global_object = object = g_object_new (TEST_TYPE_OBJECT, NULL);
g_object_weak_ref (object, weak_ref1, GUINT_TO_POINTER (42));
clear_flags ();
g_object_unref (object);
g_assert (weak_ref1_notified == TRUE);
g_assert (object_destroyed == TRUE);
/* Test two weak references at once
*/
global_object = object = g_object_new (TEST_TYPE_OBJECT, NULL);
g_object_weak_ref (object, weak_ref1, GUINT_TO_POINTER (42));
g_object_weak_ref (object, weak_ref2, GUINT_TO_POINTER (24));
clear_flags ();
g_object_unref (object);
g_assert (weak_ref1_notified == TRUE);
g_assert (weak_ref2_notified == TRUE);
g_assert (object_destroyed == TRUE);
/* Test remove weak references
*/
global_object = object = g_object_new (TEST_TYPE_OBJECT, NULL);
g_object_weak_ref (object, weak_ref1, GUINT_TO_POINTER (42));
g_object_weak_ref (object, weak_ref2, GUINT_TO_POINTER (24));
g_object_weak_unref (object, weak_ref1, GUINT_TO_POINTER (42));
clear_flags ();
g_object_unref (object);
g_assert (weak_ref1_notified == FALSE);
g_assert (weak_ref2_notified == TRUE);
g_assert (object_destroyed == TRUE);
/* Test basic toggle reference operation
*/
global_object = object = g_object_new (TEST_TYPE_OBJECT, NULL);
g_object_add_toggle_ref (object, toggle_ref1, GUINT_TO_POINTER (42));
clear_flags ();
g_object_unref (object);
g_assert (toggle_ref1_weakened == TRUE);
g_assert (toggle_ref1_strengthened == FALSE);
g_assert (object_destroyed == FALSE);
clear_flags ();
g_object_ref (object);
g_assert (toggle_ref1_weakened == FALSE);
g_assert (toggle_ref1_strengthened == TRUE);
g_assert (object_destroyed == FALSE);
g_object_unref (object);
clear_flags ();
g_object_remove_toggle_ref (object, toggle_ref1, GUINT_TO_POINTER (42));
g_assert (toggle_ref1_weakened == FALSE);
g_assert (toggle_ref1_strengthened == FALSE);
g_assert (object_destroyed == TRUE);
global_object = object = g_object_new (TEST_TYPE_OBJECT, NULL);
/* Test two toggle references at once
*/
g_object_add_toggle_ref (object, toggle_ref1, GUINT_TO_POINTER (42));
g_object_add_toggle_ref (object, toggle_ref2, GUINT_TO_POINTER (24));
clear_flags ();
g_object_unref (object);
g_assert (toggle_ref1_weakened == FALSE);
g_assert (toggle_ref1_strengthened == FALSE);
g_assert (toggle_ref2_weakened == FALSE);
g_assert (toggle_ref2_strengthened == FALSE);
g_assert (object_destroyed == FALSE);
clear_flags ();
g_object_remove_toggle_ref (object, toggle_ref1, GUINT_TO_POINTER (42));
g_assert (toggle_ref1_weakened == FALSE);
g_assert (toggle_ref1_strengthened == FALSE);
g_assert (toggle_ref2_weakened == TRUE);
g_assert (toggle_ref2_strengthened == FALSE);
g_assert (object_destroyed == FALSE);
clear_flags ();
/* Check that removing a toggle ref with %NULL data works fine. */
g_object_remove_toggle_ref (object, toggle_ref2, NULL);
g_assert (toggle_ref1_weakened == FALSE);
g_assert (toggle_ref1_strengthened == FALSE);
g_assert (toggle_ref2_weakened == FALSE);
g_assert (toggle_ref2_strengthened == FALSE);
g_assert (object_destroyed == TRUE);
/* Test a toggle reference that removes itself
*/
global_object = object = g_object_new (TEST_TYPE_OBJECT, NULL);
g_object_add_toggle_ref (object, toggle_ref3, GUINT_TO_POINTER (34));
clear_flags ();
g_object_unref (object);
g_assert (toggle_ref3_weakened == TRUE);
g_assert (toggle_ref3_strengthened == FALSE);
g_assert (object_destroyed == TRUE);
return 0;
}
|
