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 #include "qemu/module.h"
  26
  27 #define TYPE_DUMMY "qemu:dummy"
  28
  29 typedef struct DummyObject DummyObject;
  30 typedef struct DummyObjectClass DummyObjectClass;
  31
  32 struct DummyObject {
  33     Object parent;
  34 };
  35
  36 struct DummyObjectClass {
  37     ObjectClass parent;
  38 };
  39
  40 static const TypeInfo dummy_info = {
  41     .parent = TYPE_OBJECT,
  42     .name = TYPE_DUMMY,
  43     .instance_size = sizeof(DummyObject),
  44     .class_size = sizeof(DummyObjectClass),
  45 };
  46
  47 struct TestTaskData {
  48     Object *source;
  49     Error *err;
  50     bool freed;
  51 };
  52
  53
  54 static void task_callback(QIOTask *task,
  55                           gpointer opaque)
  56 {
  57     struct TestTaskData *data = opaque;
  58
  59     data->source = qio_task_get_source(task);
  60     qio_task_propagate_error(task, &data->err);
  61 }
  62
  63
  64 static void test_task_complete(void)
  65 {
  66     QIOTask *task;
  67     Object *obj = object_new(TYPE_DUMMY);
  68     Object *src;
  69     struct TestTaskData data = { NULL, NULL, false };
  70
  71     task = qio_task_new(obj, task_callback, &data, NULL);
  72     src = qio_task_get_source(task);
  73
  74     qio_task_complete(task);
  75
  76     g_assert(obj == src);
  77
  78     object_unref(obj);
  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_failure(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_set_error(task, err);
 124     qio_task_complete(task);
 125
 126     object_unref(obj);
 127
 128     g_assert(data.source == obj);
 129     g_assert(data.err == err);
 130     g_assert(data.freed == false);
 131     error_free(data.err);
 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 void test_task_thread_worker(QIOTask *task,
 145                                     gpointer opaque)
 146 {
 147     struct TestThreadWorkerData *data = opaque;
 148
 149     data->worker = g_thread_self();
 150
 151     if (data->fail) {
 152         Error *err = NULL;
 153         error_setg(&err, "Testing fail");
 154         qio_task_set_error(task, err);
 155     }
 156 }
 157
 158
 159 static void test_task_thread_callback(QIOTask *task,
 160                                       gpointer opaque)
 161 {
 162     struct TestThreadWorkerData *data = opaque;
 163
 164     data->source = qio_task_get_source(task);
 165     qio_task_propagate_error(task, &data->err);
 166
 167     data->complete = g_thread_self();
 168
 169     g_main_loop_quit(data->loop);
 170 }
 171
 172
 173 static void test_task_thread_complete(void)
 174 {
 175     QIOTask *task;
 176     Object *obj = object_new(TYPE_DUMMY);
 177     struct TestThreadWorkerData data = { 0 };
 178     GThread *self;
 179
 180     data.loop = g_main_loop_new(g_main_context_default(),
 181                                 TRUE);
 182
 183     task = qio_task_new(obj,
 184                         test_task_thread_callback,
 185                         &data,
 186                         NULL);
 187
 188     qio_task_run_in_thread(task,
 189                            test_task_thread_worker,
 190                            &data,
 191                            NULL,
 192                            NULL);
 193
 194     g_main_loop_run(data.loop);
 195
 196     g_main_loop_unref(data.loop);
 197     object_unref(obj);
 198
 199     g_assert(data.source == obj);
 200     g_assert(data.err == NULL);
 201
 202     self = g_thread_self();
 203
 204     /* Make sure the test_task_thread_worker actually got
 205      * run in a different thread */
 206     g_assert(data.worker != self);
 207
 208     /* And that the test_task_thread_callback got rnu in
 209      * the main loop thread (ie this one) */
 210     g_assert(data.complete == self);
 211 }
 212
 213
 214 static void test_task_thread_failure(void)
 215 {
 216     QIOTask *task;
 217     Object *obj = object_new(TYPE_DUMMY);
 218     struct TestThreadWorkerData data = { 0 };
 219     GThread *self;
 220
 221     data.loop = g_main_loop_new(g_main_context_default(),
 222                                 TRUE);
 223     data.fail = true;
 224
 225     task = qio_task_new(obj,
 226                         test_task_thread_callback,
 227                         &data,
 228                         NULL);
 229
 230     qio_task_run_in_thread(task,
 231                            test_task_thread_worker,
 232                            &data,
 233                            NULL,
 234                            NULL);
 235
 236     g_main_loop_run(data.loop);
 237
 238     g_main_loop_unref(data.loop);
 239     object_unref(obj);
 240
 241     g_assert(data.source == obj);
 242     g_assert(data.err != NULL);
 243
 244     error_free(data.err);
 245
 246     self = g_thread_self();
 247
 248     /* Make sure the test_task_thread_worker actually got
 249      * run in a different thread */
 250     g_assert(data.worker != self);
 251
 252     /* And that the test_task_thread_callback got rnu in
 253      * the main loop thread (ie this one) */
 254     g_assert(data.complete == self);
 255 }
 256
 257
 258 int main(int argc, char **argv)
 259 {
 260     g_test_init(&argc, &argv, NULL);
 261     module_call_init(MODULE_INIT_QOM);
 262     type_register_static(&dummy_info);
 263     g_test_add_func("/crypto/task/complete", test_task_complete);
 264     g_test_add_func("/crypto/task/datafree", test_task_data_free);
 265     g_test_add_func("/crypto/task/failure", test_task_failure);
 266     g_test_add_func("/crypto/task/thread_complete", test_task_thread_complete);
 267     g_test_add_func("/crypto/task/thread_failure", test_task_thread_failure);
 268     return g_test_run();
 269 }