tests/test-io-task.c

   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 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 "io/task.h"
  24 #include "qapi/error.h"
  25
  26 #define TYPE_DUMMY "qemu:dummy"
  27
  28 typedef struct DummyObject DummyObject;
  29 typedef struct DummyObjectClass DummyObjectClass;
  30
  31 struct DummyObject {
  32     Object parent;
  33 };
  34
  35 struct DummyObjectClass {
  36     ObjectClass parent;
  37 };
  38
  39 static const TypeInfo dummy_info = {
  40     .parent = TYPE_OBJECT,
  41     .name = TYPE_DUMMY,
  42     .instance_size = sizeof(DummyObject),
  43     .class_size = sizeof(DummyObjectClass),
  44 };
  45
  46 struct TestTaskData {
  47     Object *source;
  48     Error *err;
  49     bool freed;
  50 };
  51
  52
  53 static void task_callback(QIOTask *task,
  54                           gpointer opaque)
  55 {
  56     struct TestTaskData *data = opaque;
  57
  58     data->source = qio_task_get_source(task);
  59     qio_task_propagate_error(task, &data->err);
  60 }
  61
  62
  63 static void test_task_complete(void)
  64 {
  65     QIOTask *task;
  66     Object *obj = object_new(TYPE_DUMMY);
  67     Object *src;
  68     struct TestTaskData data = { NULL, NULL, false };
  69
  70     task = qio_task_new(obj, task_callback, &data, NULL);
  71     src = qio_task_get_source(task);
  72
  73     qio_task_complete(task);
  74
  75     g_assert(obj == src);
  76
  77     object_unref(obj);
  78
  79     g_assert(data.source == obj);
  80     g_assert(data.err == NULL);
  81     g_assert(data.freed == false);
  82 }
  83
  84
  85 static void task_data_free(gpointer opaque)
  86 {
  87     struct TestTaskData *data = opaque;
  88
  89     data->freed = true;
  90 }
  91
  92
  93 static void test_task_data_free(void)
  94 {
  95     QIOTask *task;
  96     Object *obj = object_new(TYPE_DUMMY);
  97     struct TestTaskData data = { NULL, NULL, false };
  98
  99     task = qio_task_new(obj, task_callback, &data, task_data_free);
 100
 101     qio_task_complete(task);
 102
 103     object_unref(obj);
 104
 105     g_assert(data.source == obj);
 106     g_assert(data.err == NULL);
 107     g_assert(data.freed == true);
 108 }
 109
 110
 111 static void test_task_failure(void)
 112 {
 113     QIOTask *task;
 114     Object *obj = object_new(TYPE_DUMMY);
 115     struct TestTaskData data = { NULL, NULL, false };
 116     Error *err = NULL;
 117
 118     task = qio_task_new(obj, task_callback, &data, NULL);
 119
 120     error_setg(&err, "Some error");
 121
 122     qio_task_set_error(task, err);
 123     qio_task_complete(task);
 124
 125     object_unref(obj);
 126
 127     g_assert(data.source == obj);
 128     g_assert(data.err == err);
 129     g_assert(data.freed == false);
 130     error_free(data.err);
 131 }
 132
 133
 134 struct TestThreadWorkerData {
 135     Object *source;
 136     Error *err;
 137     bool fail;
 138     GThread *worker;
 139     GThread *complete;
 140     GMainLoop *loop;
 141 };
 142
 143 static void test_task_thread_worker(QIOTask *task,
 144                                     gpointer opaque)
 145 {
 146     struct TestThreadWorkerData *data = opaque;
 147
 148     data->worker = g_thread_self();
 149
 150     if (data->fail) {
 151         Error *err = NULL;
 152         error_setg(&err, "Testing fail");
 153         qio_task_set_error(task, err);
 154     }
 155 }
 156
 157
 158 static void test_task_thread_callback(QIOTask *task,
 159                                       gpointer opaque)
 160 {
 161     struct TestThreadWorkerData *data = opaque;
 162
 163     data->source = qio_task_get_source(task);
 164     qio_task_propagate_error(task, &data->err);
 165
 166     data->complete = g_thread_self();
 167
 168     g_main_loop_quit(data->loop);
 169 }
 170
 171
 172 static void test_task_thread_complete(void)
 173 {
 174     QIOTask *task;
 175     Object *obj = object_new(TYPE_DUMMY);
 176     struct TestThreadWorkerData data = { 0 };
 177     GThread *self;
 178
 179     data.loop = g_main_loop_new(g_main_context_default(),
 180                                 TRUE);
 181
 182     task = qio_task_new(obj,
 183                         test_task_thread_callback,
 184                         &data,
 185                         NULL);
 186
 187     qio_task_run_in_thread(task,
 188                            test_task_thread_worker,
 189                            &data,
 190                            NULL);
 191
 192     g_main_loop_run(data.loop);
 193
 194     g_main_loop_unref(data.loop);
 195     object_unref(obj);
 196
 197     g_assert(data.source == obj);
 198     g_assert(data.err == NULL);
 199
 200     self = g_thread_self();
 201
 202     /* Make sure the test_task_thread_worker actually got
 203      * run in a different thread */
 204     g_assert(data.worker != self);
 205
 206     /* And that the test_task_thread_callback got rnu in
 207      * the main loop thread (ie this one) */
 208     g_assert(data.complete == self);
 209 }
 210
 211
 212 static void test_task_thread_failure(void)
 213 {
 214     QIOTask *task;
 215     Object *obj = object_new(TYPE_DUMMY);
 216     struct TestThreadWorkerData data = { 0 };
 217     GThread *self;
 218
 219     data.loop = g_main_loop_new(g_main_context_default(),
 220                                 TRUE);
 221     data.fail = true;
 222
 223     task = qio_task_new(obj,
 224                         test_task_thread_callback,
 225                         &data,
 226                         NULL);
 227
 228     qio_task_run_in_thread(task,
 229                            test_task_thread_worker,
 230                            &data,
 231                            NULL);
 232
 233     g_main_loop_run(data.loop);
 234
 235     g_main_loop_unref(data.loop);
 236     object_unref(obj);
 237
 238     g_assert(data.source == obj);
 239     g_assert(data.err != NULL);
 240
 241     error_free(data.err);
 242
 243     self = g_thread_self();
 244
 245     /* Make sure the test_task_thread_worker actually got
 246      * run in a different thread */
 247     g_assert(data.worker != self);
 248
 249     /* And that the test_task_thread_callback got rnu in
 250      * the main loop thread (ie this one) */
 251     g_assert(data.complete == self);
 252 }
 253
 254
 255 int main(int argc, char **argv)
 256 {
 257     g_test_init(&argc, &argv, NULL);
 258     module_call_init(MODULE_INIT_QOM);
 259     type_register_static(&dummy_info);
 260     g_test_add_func("/crypto/task/complete", test_task_complete);
 261     g_test_add_func("/crypto/task/datafree", test_task_data_free);
 262     g_test_add_func("/crypto/task/failure", test_task_failure);
 263     g_test_add_func("/crypto/task/thread_complete", test_task_thread_complete);
 264     g_test_add_func("/crypto/task/thread_failure", test_task_thread_failure);
 265     return g_test_run();
 266 }