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1/*
2 * Blockjob tests
3 *
4 * Copyright Igalia, S.L. 2016
5 *
6 * Authors:
7 * Alberto Garcia <berto@igalia.com>
8 *
9 * This work is licensed under the terms of the GNU LGPL, version 2 or later.
10 * See the COPYING.LIB file in the top-level directory.
11 */
12
13#include "qemu/osdep.h"
14#include "qapi/error.h"
15#include "qemu/main-loop.h"
c87621ea 16#include "block/blockjob_int.h"
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17#include "sysemu/block-backend.h"
18
19static const BlockJobDriver test_block_job_driver = {
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20 .job_driver = {
21 .instance_size = sizeof(BlockJob),
80fa2c75 22 .free = block_job_free,
b15de828 23 .user_resume = block_job_user_resume,
b69f777d 24 .drain = block_job_drain,
33e9e9bd 25 },
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26};
27
28static void block_job_cb(void *opaque, int ret)
29{
30}
31
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32static BlockJob *mk_job(BlockBackend *blk, const char *id,
33 const BlockJobDriver *drv, bool should_succeed,
34 int flags)
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35{
36 BlockJob *job;
37 Error *errp = NULL;
38
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39 job = block_job_create(id, drv, NULL, blk_bs(blk),
40 0, BLK_PERM_ALL, 0, flags, block_job_cb,
c6cc12bf 41 NULL, &errp);
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42 if (should_succeed) {
43 g_assert_null(errp);
44 g_assert_nonnull(job);
45 if (id) {
33e9e9bd 46 g_assert_cmpstr(job->job.id, ==, id);
9ef8112a 47 } else {
33e9e9bd 48 g_assert_cmpstr(job->job.id, ==, blk_name(blk));
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49 }
50 } else {
51 g_assert_nonnull(errp);
52 g_assert_null(job);
53 error_free(errp);
54 }
55
56 return job;
57}
58
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59static BlockJob *do_test_id(BlockBackend *blk, const char *id,
60 bool should_succeed)
61{
62 return mk_job(blk, id, &test_block_job_driver,
bb02b65c 63 should_succeed, JOB_DEFAULT);
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64}
65
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66/* This creates a BlockBackend (optionally with a name) with a
67 * BlockDriverState inserted. */
68static BlockBackend *create_blk(const char *name)
69{
2807c0cd 70 /* No I/O is performed on this device */
6d0eb64d 71 BlockBackend *blk = blk_new(0, BLK_PERM_ALL);
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72 BlockDriverState *bs;
73
74 bs = bdrv_open("null-co://", NULL, NULL, 0, &error_abort);
75 g_assert_nonnull(bs);
9ef8112a 76
d7086422 77 blk_insert_bs(blk, bs, &error_abort);
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78 bdrv_unref(bs);
79
80 if (name) {
81 Error *errp = NULL;
82 monitor_add_blk(blk, name, &errp);
83 g_assert_null(errp);
84 }
85
86 return blk;
87}
88
89/* This destroys the backend */
90static void destroy_blk(BlockBackend *blk)
91{
92 if (blk_name(blk)[0] != '\0') {
93 monitor_remove_blk(blk);
94 }
95
96 blk_remove_bs(blk);
97 blk_unref(blk);
98}
99
100static void test_job_ids(void)
101{
102 BlockBackend *blk[3];
103 BlockJob *job[3];
104
105 blk[0] = create_blk(NULL);
106 blk[1] = create_blk("drive1");
107 blk[2] = create_blk("drive2");
108
109 /* No job ID provided and the block backend has no name */
110 job[0] = do_test_id(blk[0], NULL, false);
111
112 /* These are all invalid job IDs */
113 job[0] = do_test_id(blk[0], "0id", false);
114 job[0] = do_test_id(blk[0], "", false);
115 job[0] = do_test_id(blk[0], " ", false);
116 job[0] = do_test_id(blk[0], "123", false);
117 job[0] = do_test_id(blk[0], "_id", false);
118 job[0] = do_test_id(blk[0], "-id", false);
119 job[0] = do_test_id(blk[0], ".id", false);
120 job[0] = do_test_id(blk[0], "#id", false);
121
122 /* This one is valid */
123 job[0] = do_test_id(blk[0], "id0", true);
124
125 /* We cannot have two jobs in the same BDS */
126 do_test_id(blk[0], "id1", false);
127
128 /* Duplicate job IDs are not allowed */
129 job[1] = do_test_id(blk[1], "id0", false);
130
131 /* But once job[0] finishes we can reuse its ID */
4ad35181 132 job_early_fail(&job[0]->job);
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133 job[1] = do_test_id(blk[1], "id0", true);
134
135 /* No job ID specified, defaults to the backend name ('drive1') */
4ad35181 136 job_early_fail(&job[1]->job);
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137 job[1] = do_test_id(blk[1], NULL, true);
138
139 /* Duplicate job ID */
140 job[2] = do_test_id(blk[2], "drive1", false);
141
142 /* The ID of job[2] would default to 'drive2' but it is already in use */
143 job[0] = do_test_id(blk[0], "drive2", true);
144 job[2] = do_test_id(blk[2], NULL, false);
145
146 /* This one is valid */
147 job[2] = do_test_id(blk[2], "id_2", true);
148
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149 job_early_fail(&job[0]->job);
150 job_early_fail(&job[1]->job);
151 job_early_fail(&job[2]->job);
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152
153 destroy_blk(blk[0]);
154 destroy_blk(blk[1]);
155 destroy_blk(blk[2]);
156}
157
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158typedef struct CancelJob {
159 BlockJob common;
160 BlockBackend *blk;
161 bool should_converge;
162 bool should_complete;
163 bool completed;
164} CancelJob;
165
1908a559 166static void cancel_job_completed(Job *job, void *opaque)
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167{
168 CancelJob *s = opaque;
169 s->completed = true;
1266c9b9 170 job_completed(job, 0, NULL);
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171}
172
3453d972 173static void cancel_job_complete(Job *job, Error **errp)
fb367e03 174{
3453d972 175 CancelJob *s = container_of(job, CancelJob, common.job);
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176 s->should_complete = true;
177}
178
179static void coroutine_fn cancel_job_start(void *opaque)
180{
181 CancelJob *s = opaque;
182
183 while (!s->should_complete) {
daa7f2f9 184 if (job_is_cancelled(&s->common.job)) {
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185 goto defer;
186 }
187
df956ae2 188 if (!job_is_ready(&s->common.job) && s->should_converge) {
2e1795b5 189 job_transition_to_ready(&s->common.job);
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190 }
191
5d43e86e 192 job_sleep_ns(&s->common.job, 100000);
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193 }
194
195 defer:
1908a559 196 job_defer_to_main_loop(&s->common.job, cancel_job_completed, s);
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197}
198
199static const BlockJobDriver test_cancel_driver = {
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200 .job_driver = {
201 .instance_size = sizeof(CancelJob),
80fa2c75 202 .free = block_job_free,
b15de828 203 .user_resume = block_job_user_resume,
b69f777d 204 .drain = block_job_drain,
da01ff7f 205 .start = cancel_job_start,
3453d972 206 .complete = cancel_job_complete,
33e9e9bd 207 },
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208};
209
210static CancelJob *create_common(BlockJob **pjob)
211{
212 BlockBackend *blk;
213 BlockJob *job;
214 CancelJob *s;
215
216 blk = create_blk(NULL);
217 job = mk_job(blk, "Steve", &test_cancel_driver, true,
bb02b65c 218 JOB_MANUAL_FINALIZE | JOB_MANUAL_DISMISS);
80fa2c75 219 job_ref(&job->job);
a50c2ab8 220 assert(job->job.status == JOB_STATUS_CREATED);
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221 s = container_of(job, CancelJob, common);
222 s->blk = blk;
223
224 *pjob = job;
225 return s;
226}
227
228static void cancel_common(CancelJob *s)
229{
230 BlockJob *job = &s->common;
231 BlockBackend *blk = s->blk;
a50c2ab8 232 JobStatus sts = job->job.status;
fb367e03 233
3d70ff53 234 job_cancel_sync(&job->job);
a50c2ab8 235 if (sts != JOB_STATUS_CREATED && sts != JOB_STATUS_CONCLUDED) {
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236 Job *dummy = &job->job;
237 job_dismiss(&dummy, &error_abort);
fb367e03 238 }
a50c2ab8 239 assert(job->job.status == JOB_STATUS_NULL);
80fa2c75 240 job_unref(&job->job);
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241 destroy_blk(blk);
242}
243
244static void test_cancel_created(void)
245{
246 BlockJob *job;
247 CancelJob *s;
248
249 s = create_common(&job);
250 cancel_common(s);
251}
252
253static void test_cancel_running(void)
254{
255 BlockJob *job;
256 CancelJob *s;
257
258 s = create_common(&job);
259
da01ff7f 260 job_start(&job->job);
a50c2ab8 261 assert(job->job.status == JOB_STATUS_RUNNING);
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262
263 cancel_common(s);
264}
265
266static void test_cancel_paused(void)
267{
268 BlockJob *job;
269 CancelJob *s;
270
271 s = create_common(&job);
272
da01ff7f 273 job_start(&job->job);
a50c2ab8 274 assert(job->job.status == JOB_STATUS_RUNNING);
fb367e03 275
b15de828 276 job_user_pause(&job->job, &error_abort);
3d70ff53 277 job_enter(&job->job);
a50c2ab8 278 assert(job->job.status == JOB_STATUS_PAUSED);
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279
280 cancel_common(s);
281}
282
283static void test_cancel_ready(void)
284{
285 BlockJob *job;
286 CancelJob *s;
287
288 s = create_common(&job);
289
da01ff7f 290 job_start(&job->job);
a50c2ab8 291 assert(job->job.status == JOB_STATUS_RUNNING);
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292
293 s->should_converge = true;
3d70ff53 294 job_enter(&job->job);
a50c2ab8 295 assert(job->job.status == JOB_STATUS_READY);
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296
297 cancel_common(s);
298}
299
300static void test_cancel_standby(void)
301{
302 BlockJob *job;
303 CancelJob *s;
304
305 s = create_common(&job);
306
da01ff7f 307 job_start(&job->job);
a50c2ab8 308 assert(job->job.status == JOB_STATUS_RUNNING);
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309
310 s->should_converge = true;
3d70ff53 311 job_enter(&job->job);
a50c2ab8 312 assert(job->job.status == JOB_STATUS_READY);
fb367e03 313
b15de828 314 job_user_pause(&job->job, &error_abort);
3d70ff53 315 job_enter(&job->job);
a50c2ab8 316 assert(job->job.status == JOB_STATUS_STANDBY);
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317
318 cancel_common(s);
319}
320
321static void test_cancel_pending(void)
322{
323 BlockJob *job;
324 CancelJob *s;
325
326 s = create_common(&job);
327
da01ff7f 328 job_start(&job->job);
a50c2ab8 329 assert(job->job.status == JOB_STATUS_RUNNING);
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330
331 s->should_converge = true;
3d70ff53 332 job_enter(&job->job);
a50c2ab8 333 assert(job->job.status == JOB_STATUS_READY);
fb367e03 334
3453d972 335 job_complete(&job->job, &error_abort);
3d70ff53 336 job_enter(&job->job);
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337 while (!s->completed) {
338 aio_poll(qemu_get_aio_context(), true);
339 }
a50c2ab8 340 assert(job->job.status == JOB_STATUS_PENDING);
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341
342 cancel_common(s);
343}
344
345static void test_cancel_concluded(void)
346{
347 BlockJob *job;
348 CancelJob *s;
349
350 s = create_common(&job);
351
da01ff7f 352 job_start(&job->job);
a50c2ab8 353 assert(job->job.status == JOB_STATUS_RUNNING);
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354
355 s->should_converge = true;
3d70ff53 356 job_enter(&job->job);
a50c2ab8 357 assert(job->job.status == JOB_STATUS_READY);
fb367e03 358
3453d972 359 job_complete(&job->job, &error_abort);
3d70ff53 360 job_enter(&job->job);
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361 while (!s->completed) {
362 aio_poll(qemu_get_aio_context(), true);
363 }
a50c2ab8 364 assert(job->job.status == JOB_STATUS_PENDING);
fb367e03 365
7eaa8fb5 366 job_finalize(&job->job, &error_abort);
a50c2ab8 367 assert(job->job.status == JOB_STATUS_CONCLUDED);
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368
369 cancel_common(s);
370}
371
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372int main(int argc, char **argv)
373{
374 qemu_init_main_loop(&error_abort);
d185cf0e 375 bdrv_init();
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376
377 g_test_init(&argc, &argv, NULL);
378 g_test_add_func("/blockjob/ids", test_job_ids);
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379 g_test_add_func("/blockjob/cancel/created", test_cancel_created);
380 g_test_add_func("/blockjob/cancel/running", test_cancel_running);
381 g_test_add_func("/blockjob/cancel/paused", test_cancel_paused);
382 g_test_add_func("/blockjob/cancel/ready", test_cancel_ready);
383 g_test_add_func("/blockjob/cancel/standby", test_cancel_standby);
384 g_test_add_func("/blockjob/cancel/pending", test_cancel_pending);
385 g_test_add_func("/blockjob/cancel/concluded", test_cancel_concluded);
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386 return g_test_run();
387}