xref: /qemu/tests/unit/test-io-task.c (revision 727385c4) 
1 /*
2  * QEMU I/O task tests
3  *
4  * Copyright (c) 2015 Red Hat, Inc.
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
18  *
19  */
20 
21 #include "qemu/osdep.h"
22 
23 #include "qom/object.h"
24 #include "io/task.h"
25 #include "qapi/error.h"
26 #include "qemu/module.h"
27 
28 #define TYPE_DUMMY "qemu:dummy"
29 
30 typedef struct DummyObject DummyObject;
31 typedef struct DummyObjectClass DummyObjectClass;
32 
33 struct DummyObject {
34     Object parent;
35 };
36 
37 struct DummyObjectClass {
38     ObjectClass parent;
39 };
40 
41 static const TypeInfo dummy_info = {
42     .parent = TYPE_OBJECT,
43     .name = TYPE_DUMMY,
44     .instance_size = sizeof(DummyObject),
45     .class_size = sizeof(DummyObjectClass),
46 };
47 
48 struct TestTaskData {
49     Object *source;
50     Error *err;
51     bool freed;
52 };
53 
54 
55 static void task_callback(QIOTask *task,
56                           gpointer opaque)
57 {
58     struct TestTaskData *data = opaque;
59 
60     data->source = qio_task_get_source(task);
61     qio_task_propagate_error(task, &data->err);
62 }
63 
64 
65 static void test_task_complete(void)
66 {
67     QIOTask *task;
68     Object *obj = object_new(TYPE_DUMMY);
69     Object *src;
70     struct TestTaskData data = { NULL, NULL, false };
71 
72     task = qio_task_new(obj, task_callback, &data, NULL);
73     src = qio_task_get_source(task);
74 
75     qio_task_complete(task);
76 
77     g_assert(obj == src);
78 
79     object_unref(obj);
80 
81     g_assert(data.source == obj);
82     g_assert(data.err == NULL);
83     g_assert(data.freed == false);
84 }
85 
86 
87 static void task_data_free(gpointer opaque)
88 {
89     struct TestTaskData *data = opaque;
90 
91     data->freed = true;
92 }
93 
94 
95 static void test_task_data_free(void)
96 {
97     QIOTask *task;
98     Object *obj = object_new(TYPE_DUMMY);
99     struct TestTaskData data = { NULL, NULL, false };
100 
101     task = qio_task_new(obj, task_callback, &data, task_data_free);
102 
103     qio_task_complete(task);
104 
105     object_unref(obj);
106 
107     g_assert(data.source == obj);
108     g_assert(data.err == NULL);
109     g_assert(data.freed == true);
110 }
111 
112 
113 static void test_task_failure(void)
114 {
115     QIOTask *task;
116     Object *obj = object_new(TYPE_DUMMY);
117     struct TestTaskData data = { NULL, NULL, false };
118     Error *err = NULL;
119 
120     task = qio_task_new(obj, task_callback, &data, NULL);
121 
122     error_setg(&err, "Some error");
123 
124     qio_task_set_error(task, err);
125     qio_task_complete(task);
126 
127     object_unref(obj);
128 
129     g_assert(data.source == obj);
130     g_assert(data.err == err);
131     g_assert(data.freed == false);
132     error_free(data.err);
133 }
134 
135 
136 struct TestThreadWorkerData {
137     Object *source;
138     Error *err;
139     bool fail;
140     GThread *worker;
141     GThread *complete;
142     GMainLoop *loop;
143 };
144 
145 static void test_task_thread_worker(QIOTask *task,
146                                     gpointer opaque)
147 {
148     struct TestThreadWorkerData *data = opaque;
149 
150     data->worker = g_thread_self();
151 
152     if (data->fail) {
153         Error *err = NULL;
154         error_setg(&err, "Testing fail");
155         qio_task_set_error(task, err);
156     }
157 }
158 
159 
160 static void test_task_thread_callback(QIOTask *task,
161                                       gpointer opaque)
162 {
163     struct TestThreadWorkerData *data = opaque;
164 
165     data->source = qio_task_get_source(task);
166     qio_task_propagate_error(task, &data->err);
167 
168     data->complete = g_thread_self();
169 
170     g_main_loop_quit(data->loop);
171 }
172 
173 
174 static void test_task_thread_complete(void)
175 {
176     QIOTask *task;
177     Object *obj = object_new(TYPE_DUMMY);
178     struct TestThreadWorkerData data = { 0 };
179     GThread *self;
180 
181     data.loop = g_main_loop_new(g_main_context_default(),
182                                 TRUE);
183 
184     task = qio_task_new(obj,
185                         test_task_thread_callback,
186                         &data,
187                         NULL);
188 
189     qio_task_run_in_thread(task,
190                            test_task_thread_worker,
191                            &data,
192                            NULL,
193                            NULL);
194 
195     g_main_loop_run(data.loop);
196 
197     g_main_loop_unref(data.loop);
198     object_unref(obj);
199 
200     g_assert(data.source == obj);
201     g_assert(data.err == NULL);
202 
203     self = g_thread_self();
204 
205     /* Make sure the test_task_thread_worker actually got
206      * run in a different thread */
207     g_assert(data.worker != self);
208 
209     /* And that the test_task_thread_callback got rnu in
210      * the main loop thread (ie this one) */
211     g_assert(data.complete == self);
212 }
213 
214 
215 static void test_task_thread_failure(void)
216 {
217     QIOTask *task;
218     Object *obj = object_new(TYPE_DUMMY);
219     struct TestThreadWorkerData data = { 0 };
220     GThread *self;
221 
222     data.loop = g_main_loop_new(g_main_context_default(),
223                                 TRUE);
224     data.fail = true;
225 
226     task = qio_task_new(obj,
227                         test_task_thread_callback,
228                         &data,
229                         NULL);
230 
231     qio_task_run_in_thread(task,
232                            test_task_thread_worker,
233                            &data,
234                            NULL,
235                            NULL);
236 
237     g_main_loop_run(data.loop);
238 
239     g_main_loop_unref(data.loop);
240     object_unref(obj);
241 
242     g_assert(data.source == obj);
243     error_free_or_abort(&data.err);
244 
245     self = g_thread_self();
246 
247     /* Make sure the test_task_thread_worker actually got
248      * run in a different thread */
249     g_assert(data.worker != self);
250 
251     /* And that the test_task_thread_callback got rnu in
252      * the main loop thread (ie this one) */
253     g_assert(data.complete == self);
254 }
255 
256 
257 int main(int argc, char **argv)
258 {
259     g_test_init(&argc, &argv, NULL);
260     module_call_init(MODULE_INIT_QOM);
261     type_register_static(&dummy_info);
262     g_test_add_func("/crypto/task/complete", test_task_complete);
263     g_test_add_func("/crypto/task/datafree", test_task_data_free);
264     g_test_add_func("/crypto/task/failure", test_task_failure);
265     g_test_add_func("/crypto/task/thread_complete", test_task_thread_complete);
266     g_test_add_func("/crypto/task/thread_failure", test_task_thread_failure);
267     return g_test_run();
268 }
269