tests/unit/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 2.1 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 }