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 <glib.h>
  22
  23 #include "io/task.h"
  24
  25 #define TYPE_DUMMY "qemu:dummy"
  26
  27 typedef struct DummyObject DummyObject;
  28 typedef struct DummyObjectClass DummyObjectClass;
  29
  30 struct DummyObject {
  31     Object parent;
  32 };
  33
  34 struct DummyObjectClass {
  35     ObjectClass parent;
  36 };
  37
  38 static const TypeInfo dummy_info = {
  39     .parent = TYPE_OBJECT,
  40     .name = TYPE_DUMMY,
  41     .instance_size = sizeof(DummyObject),
  42     .class_size = sizeof(DummyObjectClass),
  43 };
  44
  45 struct TestTaskData {
  46     Object *source;
  47     Error *err;
  48     bool freed;
  49 };
  50
  51
  52 static void task_callback(Object *source,
  53                           Error *err,
  54                           gpointer opaque)
  55 {
  56     struct TestTaskData *data = opaque;
  57
  58     data->source = source;
  59     data->err = 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     object_unref(src);
  79
  80     g_assert(data.source == obj);
  81     g_assert(data.err == NULL);
  82     g_assert(data.freed == false);
  83 }
  84
  85
  86 static void task_data_free(gpointer opaque)
  87 {
  88     struct TestTaskData *data = opaque;
  89
  90     data->freed = true;
  91 }
  92
  93
  94 static void test_task_data_free(void)
  95 {
  96     QIOTask *task;
  97     Object *obj = object_new(TYPE_DUMMY);
  98     struct TestTaskData data = { NULL, NULL, false };
  99
 100     task = qio_task_new(obj, task_callback, &data, task_data_free);
 101
 102     qio_task_complete(task);
 103
 104     object_unref(obj);
 105
 106     g_assert(data.source == obj);
 107     g_assert(data.err == NULL);
 108     g_assert(data.freed == true);
 109 }
 110
 111
 112 static void test_task_error(void)
 113 {
 114     QIOTask *task;
 115     Object *obj = object_new(TYPE_DUMMY);
 116     struct TestTaskData data = { NULL, NULL, false };
 117     Error *err = NULL;
 118
 119     task = qio_task_new(obj, task_callback, &data, NULL);
 120
 121     error_setg(&err, "Some error");
 122
 123     qio_task_abort(task, err);
 124
 125     error_free(err);
 126     object_unref(obj);
 127
 128     g_assert(data.source == obj);
 129     g_assert(data.err == err);
 130     g_assert(data.freed == false);
 131
 132 }
 133
 134
 135 struct TestThreadWorkerData {
 136     Object *source;
 137     Error *err;
 138     bool fail;
 139     GThread *worker;
 140     GThread *complete;
 141     GMainLoop *loop;
 142 };
 143
 144 static int test_task_thread_worker(QIOTask *task,
 145                                    Error **errp,
 146                                    gpointer opaque)
 147 {
 148     struct TestThreadWorkerData *data = opaque;
 149
 150     data->worker = g_thread_self();
 151
 152     if (data->fail) {
 153         error_setg(errp, "Testing fail");
 154         return -1;
 155     }
 156
 157     return 0;
 158 }
 159
 160
 161 static void test_task_thread_callback(Object *source,
 162                                       Error *err,
 163                                       gpointer opaque)
 164 {
 165     struct TestThreadWorkerData *data = opaque;
 166
 167     data->source = source;
 168     data->err = err;
 169
 170     data->complete = g_thread_self();
 171
 172     g_main_loop_quit(data->loop);
 173 }
 174
 175
 176 static void test_task_thread_complete(void)
 177 {
 178     QIOTask *task;
 179     Object *obj = object_new(TYPE_DUMMY);
 180     struct TestThreadWorkerData data = { 0 };
 181     GThread *self;
 182
 183     data.loop = g_main_loop_new(g_main_context_default(),
 184                                 TRUE);
 185
 186     task = qio_task_new(obj,
 187                         test_task_thread_callback,
 188                         &data,
 189                         NULL);
 190
 191     qio_task_run_in_thread(task,
 192                            test_task_thread_worker,
 193                            &data,
 194                            NULL);
 195
 196     g_main_loop_run(data.loop);
 197
 198     g_main_loop_unref(data.loop);
 199     object_unref(obj);
 200
 201     g_assert(data.source == obj);
 202     g_assert(data.err == NULL);
 203
 204     self = g_thread_self();
 205
 206     /* Make sure the test_task_thread_worker actually got
 207      * run in a different thread */
 208     g_assert(data.worker != self);
 209
 210     /* And that the test_task_thread_callback got rnu in
 211      * the main loop thread (ie this one) */
 212     g_assert(data.complete == self);
 213 }
 214
 215
 216 static void test_task_thread_error(void)
 217 {
 218     QIOTask *task;
 219     Object *obj = object_new(TYPE_DUMMY);
 220     struct TestThreadWorkerData data = { 0 };
 221     GThread *self;
 222
 223     data.loop = g_main_loop_new(g_main_context_default(),
 224                                 TRUE);
 225     data.fail = true;
 226
 227     task = qio_task_new(obj,
 228                         test_task_thread_callback,
 229                         &data,
 230                         NULL);
 231
 232     qio_task_run_in_thread(task,
 233                            test_task_thread_worker,
 234                            &data,
 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     g_assert(data.err != NULL);
 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/error", test_task_error);
 265     g_test_add_func("/crypto/task/thread_complete", test_task_thread_complete);
 266     g_test_add_func("/crypto/task/thread_error", test_task_thread_error);
 267     return g_test_run();
 268 }