1/*
2 * Copyright © 2013 Marek Chalupa
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining
5 * a copy of this software and associated documentation files (the
6 * "Software"), to deal in the Software without restriction, including
7 * without limitation the rights to use, copy, modify, merge, publish,
8 * distribute, sublicense, and/or sell copies of the Software, and to
9 * permit persons to whom the Software is furnished to do so, subject to
10 * the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the
13 * next paragraph) shall be included in all copies or substantial
14 * portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
20 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
21 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23 * SOFTWARE.
24 */
25
26#include <assert.h>
27
28#include "test-runner.h"
29#include "wayland-server-private.h"
30
31static void
32signal_notify(struct wl_listener *listener, void *data)
33{
34 /* only increase counter*/
35 ++(*((int *) data));
36}
37
38TEST(signal_init)
39{
40 struct wl_priv_signal signal;
41
42 wl_priv_signal_init(signal: &signal);
43
44 /* Test if listeners' list is initialized */
45 assert(&signal.listener_list == signal.listener_list.next
46 && "Maybe wl_priv_signal implementation changed?");
47 assert(signal.listener_list.next == signal.listener_list.prev
48 && "Maybe wl_priv_signal implementation changed?");
49}
50
51TEST(signal_add_get)
52{
53 struct wl_priv_signal signal;
54
55 /* we just need different values of notify */
56 struct wl_listener l1 = {.notify = (wl_notify_func_t) 0x1};
57 struct wl_listener l2 = {.notify = (wl_notify_func_t) 0x2};
58 struct wl_listener l3 = {.notify = (wl_notify_func_t) 0x3};
59 /* one real, why not */
60 struct wl_listener l4 = {.notify = signal_notify};
61
62 wl_priv_signal_init(signal: &signal);
63
64 wl_priv_signal_add(signal: &signal, listener: &l1);
65 wl_priv_signal_add(signal: &signal, listener: &l2);
66 wl_priv_signal_add(signal: &signal, listener: &l3);
67 wl_priv_signal_add(signal: &signal, listener: &l4);
68
69 assert(wl_priv_signal_get(&signal, signal_notify) == &l4);
70 assert(wl_priv_signal_get(&signal, (wl_notify_func_t) 0x3) == &l3);
71 assert(wl_priv_signal_get(&signal, (wl_notify_func_t) 0x2) == &l2);
72 assert(wl_priv_signal_get(&signal, (wl_notify_func_t) 0x1) == &l1);
73
74 /* get should not be destructive */
75 assert(wl_priv_signal_get(&signal, signal_notify) == &l4);
76 assert(wl_priv_signal_get(&signal, (wl_notify_func_t) 0x3) == &l3);
77 assert(wl_priv_signal_get(&signal, (wl_notify_func_t) 0x2) == &l2);
78 assert(wl_priv_signal_get(&signal, (wl_notify_func_t) 0x1) == &l1);
79}
80
81TEST(signal_emit_to_one_listener)
82{
83 int count = 0;
84 int counter;
85
86 struct wl_priv_signal signal;
87 struct wl_listener l1 = {.notify = signal_notify};
88
89 wl_priv_signal_init(signal: &signal);
90 wl_priv_signal_add(signal: &signal, listener: &l1);
91
92 for (counter = 0; counter < 100; counter++)
93 wl_priv_signal_emit(signal: &signal, data: &count);
94
95 assert(counter == count);
96}
97
98TEST(signal_emit_to_more_listeners)
99{
100 int count = 0;
101 int counter;
102
103 struct wl_priv_signal signal;
104 struct wl_listener l1 = {.notify = signal_notify};
105 struct wl_listener l2 = {.notify = signal_notify};
106 struct wl_listener l3 = {.notify = signal_notify};
107
108 wl_priv_signal_init(signal: &signal);
109 wl_priv_signal_add(signal: &signal, listener: &l1);
110 wl_priv_signal_add(signal: &signal, listener: &l2);
111 wl_priv_signal_add(signal: &signal, listener: &l3);
112
113 for (counter = 0; counter < 100; counter++)
114 wl_priv_signal_emit(signal: &signal, data: &count);
115
116 assert(3 * counter == count);
117}
118
119struct signal
120{
121 struct wl_priv_signal signal;
122 struct wl_listener l1, l2, l3;
123 int count;
124 struct wl_listener *current;
125};
126
127static void notify_remove(struct wl_listener *l, void *data)
128{
129 struct signal *sig = data;
130 wl_list_remove(elm: &sig->current->link);
131 wl_list_init(list: &sig->current->link);
132 sig->count++;
133}
134
135#define INIT \
136 wl_priv_signal_init(&signal.signal); \
137 wl_list_init(&signal.l1.link); \
138 wl_list_init(&signal.l2.link); \
139 wl_list_init(&signal.l3.link);
140#define CHECK_EMIT(expected) \
141 signal.count = 0; \
142 wl_priv_signal_emit(&signal.signal, &signal); \
143 assert(signal.count == expected);
144
145TEST(signal_remove_listener)
146{
147 test_set_timeout(4);
148
149 struct signal signal;
150
151 signal.l1.notify = notify_remove;
152 signal.l2.notify = notify_remove;
153 signal.l3.notify = notify_remove;
154
155 INIT
156 wl_priv_signal_add(signal: &signal.signal, listener: &signal.l1);
157
158 signal.current = &signal.l1;
159 CHECK_EMIT(1)
160 CHECK_EMIT(0)
161
162 INIT
163 wl_priv_signal_add(signal: &signal.signal, listener: &signal.l1);
164 wl_priv_signal_add(signal: &signal.signal, listener: &signal.l2);
165
166 CHECK_EMIT(2)
167 CHECK_EMIT(1)
168
169 INIT
170 wl_priv_signal_add(signal: &signal.signal, listener: &signal.l1);
171 wl_priv_signal_add(signal: &signal.signal, listener: &signal.l2);
172
173 signal.current = &signal.l2;
174 CHECK_EMIT(1)
175 CHECK_EMIT(1)
176
177 INIT
178 wl_priv_signal_add(signal: &signal.signal, listener: &signal.l1);
179 wl_priv_signal_add(signal: &signal.signal, listener: &signal.l2);
180 wl_priv_signal_add(signal: &signal.signal, listener: &signal.l3);
181
182 signal.current = &signal.l1;
183 CHECK_EMIT(3)
184 CHECK_EMIT(2)
185
186 INIT
187 wl_priv_signal_add(signal: &signal.signal, listener: &signal.l1);
188 wl_priv_signal_add(signal: &signal.signal, listener: &signal.l2);
189 wl_priv_signal_add(signal: &signal.signal, listener: &signal.l3);
190
191 signal.current = &signal.l2;
192 CHECK_EMIT(2)
193 CHECK_EMIT(2)
194
195 INIT
196 wl_priv_signal_add(signal: &signal.signal, listener: &signal.l1);
197 wl_priv_signal_add(signal: &signal.signal, listener: &signal.l2);
198 wl_priv_signal_add(signal: &signal.signal, listener: &signal.l3);
199
200 signal.current = &signal.l3;
201 CHECK_EMIT(2)
202 CHECK_EMIT(2)
203}
204
205static void notify_readd(struct wl_listener *l, void *data)
206{
207 struct signal *signal = data;
208 if (signal->current) {
209 wl_list_remove(elm: &signal->current->link);
210 wl_list_init(list: &signal->current->link);
211 wl_priv_signal_add(signal: &signal->signal, listener: signal->current);
212 }
213 signal->count++;
214}
215
216static void notify_empty(struct wl_listener *l, void *data)
217{
218 struct signal *signal = data;
219 signal->count++;
220}
221
222TEST(signal_readd_listener)
223{
224 /* Readding a listener is supported, that is it doesn't trigger an
225 * infinite loop or other weird things, but if in a listener you
226 * re-add another listener, that will not be fired in the current
227 * signal emission. */
228
229 test_set_timeout(4);
230
231 struct signal signal;
232
233 signal.l1.notify = notify_readd;
234 signal.l2.notify = notify_readd;
235
236 INIT
237 wl_priv_signal_add(signal: &signal.signal, listener: &signal.l1);
238
239 signal.current = &signal.l1;
240 CHECK_EMIT(1)
241 CHECK_EMIT(1)
242
243 INIT
244 wl_priv_signal_add(signal: &signal.signal, listener: &signal.l1);
245
246 signal.current = &signal.l2;
247 CHECK_EMIT(1)
248 signal.current = NULL;
249 CHECK_EMIT(2)
250
251 INIT
252 wl_priv_signal_add(signal: &signal.signal, listener: &signal.l2);
253
254 signal.current = &signal.l1;
255 CHECK_EMIT(1)
256 /* l2 was added before l1, so l2 is fired first, which by readding l1
257 * removes it from the current list that is being fired, so 1 is correct */
258 CHECK_EMIT(1)
259
260 INIT
261 wl_priv_signal_add(signal: &signal.signal, listener: &signal.l1);
262 wl_priv_signal_add(signal: &signal.signal, listener: &signal.l2);
263
264 signal.l1.notify = notify_empty;
265 signal.current = &signal.l2;
266 CHECK_EMIT(2)
267 CHECK_EMIT(2)
268
269 INIT
270 wl_priv_signal_add(signal: &signal.signal, listener: &signal.l1);
271 wl_priv_signal_add(signal: &signal.signal, listener: &signal.l2);
272
273 signal.l1.notify = notify_empty;
274 signal.current = &signal.l1;
275 CHECK_EMIT(2)
276 /* same as before, by readding l1 in the first emit, it now is fired
277 * after l2, so on the second emit it is not fired at all. */
278 CHECK_EMIT(1)
279}
280
281static void notify_addandget(struct wl_listener *l, void *data)
282{
283 struct signal *signal = data;
284 wl_list_remove(elm: &signal->current->link);
285 wl_list_init(list: &signal->current->link);
286 wl_priv_signal_add(signal: &signal->signal, listener: signal->current);
287
288 assert(wl_priv_signal_get(&signal->signal, signal->current->notify) != NULL);
289
290 signal->count++;
291}
292
293static void notify_get(struct wl_listener *l, void *data)
294{
295 struct signal *signal = data;
296 assert(wl_priv_signal_get(&signal->signal, signal->current->notify) == signal->current);
297 signal->count++;
298}
299
300TEST(signal_get_listener)
301{
302 test_set_timeout(4);
303
304 struct signal signal;
305
306 signal.l1.notify = notify_addandget;
307 signal.l2.notify = notify_get;
308
309 INIT
310 wl_priv_signal_add(signal: &signal.signal, listener: &signal.l1);
311
312 signal.current = &signal.l2;
313 CHECK_EMIT(1)
314
315 INIT
316 wl_priv_signal_add(signal: &signal.signal, listener: &signal.l2);
317
318 signal.current = &signal.l2;
319 CHECK_EMIT(1)
320
321 INIT
322 signal.l1.notify = notify_get;
323 signal.l2.notify = notify_empty;
324 wl_priv_signal_add(signal: &signal.signal, listener: &signal.l1);
325 wl_priv_signal_add(signal: &signal.signal, listener: &signal.l2);
326
327 CHECK_EMIT(2)
328
329 INIT
330 signal.l1.notify = notify_empty;
331 signal.l2.notify = notify_get;
332 wl_priv_signal_add(signal: &signal.signal, listener: &signal.l1);
333 wl_priv_signal_add(signal: &signal.signal, listener: &signal.l2);
334
335 signal.current = &signal.l1;
336 CHECK_EMIT(2)
337}
338

source code of gtk/subprojects/wayland/tests/newsignal-test.c