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 #include <glib.h>
  23
  24 #include "io/task.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(Object *source,
  54                           Error *err,
  55                           gpointer opaque)
  56 {
  57     struct TestTaskData *data = opaque;
  58
  59     data->source = source;
  60     data->err = 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     object_unref(src);
  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_error(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_abort(task, err);
 125
 126     error_free(err);
 127     object_unref(obj);
 128
 129     g_assert(data.source == obj);
 130     g_assert(data.err == err);
 131     g_assert(data.freed == false);
 132
 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 int test_task_thread_worker(QIOTask *task,
 146                                    Error **errp,
 147                                    gpointer opaque)
 148 {
 149     struct TestThreadWorkerData *data = opaque;
 150
 151     data->worker = g_thread_self();
 152
 153     if (data->fail) {
 154         error_setg(errp, "Testing fail");
 155         return -1;
 156     }
 157
 158     return 0;
 159 }
 160
 161
 162 static void test_task_thread_callback(Object *source,
 163                                       Error *err,
 164                                       gpointer opaque)
 165 {
 166     struct TestThreadWorkerData *data = opaque;
 167
 168     data->source = source;
 169     data->err = err;
 170
 171     data->complete = g_thread_self();
 172
 173     g_main_loop_quit(data->loop);
 174 }
 175
 176
 177 static void test_task_thread_complete(void)
 178 {
 179     QIOTask *task;
 180     Object *obj = object_new(TYPE_DUMMY);
 181     struct TestThreadWorkerData data = { 0 };
 182     GThread *self;
 183
 184     data.loop = g_main_loop_new(g_main_context_default(),
 185                                 TRUE);
 186
 187     task = qio_task_new(obj,
 188                         test_task_thread_callback,
 189                         &data,
 190                         NULL);
 191
 192     qio_task_run_in_thread(task,
 193                            test_task_thread_worker,
 194                            &data,
 195                            NULL);
 196
 197     g_main_loop_run(data.loop);
 198
 199     g_main_loop_unref(data.loop);
 200     object_unref(obj);
 201
 202     g_assert(data.source == obj);
 203     g_assert(data.err == NULL);
 204
 205     self = g_thread_self();
 206
 207     /* Make sure the test_task_thread_worker actually got
 208      * run in a different thread */
 209     g_assert(data.worker != self);
 210
 211     /* And that the test_task_thread_callback got rnu in
 212      * the main loop thread (ie this one) */
 213     g_assert(data.complete == self);
 214 }
 215
 216
 217 static void test_task_thread_error(void)
 218 {
 219     QIOTask *task;
 220     Object *obj = object_new(TYPE_DUMMY);
 221     struct TestThreadWorkerData data = { 0 };
 222     GThread *self;
 223
 224     data.loop = g_main_loop_new(g_main_context_default(),
 225                                 TRUE);
 226     data.fail = true;
 227
 228     task = qio_task_new(obj,
 229                         test_task_thread_callback,
 230                         &data,
 231                         NULL);
 232
 233     qio_task_run_in_thread(task,
 234                            test_task_thread_worker,
 235                            &data,
 236                            NULL);
 237
 238     g_main_loop_run(data.loop);
 239
 240     g_main_loop_unref(data.loop);
 241     object_unref(obj);
 242
 243     g_assert(data.source == obj);
 244     g_assert(data.err != NULL);
 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/error", test_task_error);
 266     g_test_add_func("/crypto/task/thread_complete", test_task_thread_complete);
 267     g_test_add_func("/crypto/task/thread_error", test_task_thread_error);
 268     return g_test_run();
 269 }