summaryrefslogtreecommitdiff
path: root/tests/test-blockjob.c
blob: 4eeb184caf8ec175948aaeace2a2caf1503258f1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
/*
 * Blockjob tests
 *
 * Copyright Igalia, S.L. 2016
 *
 * Authors:
 *  Alberto Garcia   <berto@igalia.com>
 *
 * This work is licensed under the terms of the GNU LGPL, version 2 or later.
 * See the COPYING.LIB file in the top-level directory.
 */

#include "qemu/osdep.h"
#include "qapi/error.h"
#include "qemu/main-loop.h"
#include "block/blockjob_int.h"
#include "sysemu/block-backend.h"
#include "qapi/qmp/qdict.h"

static const BlockJobDriver test_block_job_driver = {
    .job_driver = {
        .instance_size = sizeof(BlockJob),
        .free          = block_job_free,
        .user_resume   = block_job_user_resume,
    },
};

static void block_job_cb(void *opaque, int ret)
{
}

static BlockJob *mk_job(BlockBackend *blk, const char *id,
                        const BlockJobDriver *drv, bool should_succeed,
                        int flags)
{
    BlockJob *job;
    Error *err = NULL;

    job = block_job_create(id, drv, NULL, blk_bs(blk),
                           0, BLK_PERM_ALL, 0, flags, block_job_cb,
                           NULL, &err);
    if (should_succeed) {
        g_assert_null(err);
        g_assert_nonnull(job);
        if (id) {
            g_assert_cmpstr(job->job.id, ==, id);
        } else {
            g_assert_cmpstr(job->job.id, ==, blk_name(blk));
        }
    } else {
        error_free_or_abort(&err);
        g_assert_null(job);
    }

    return job;
}

static BlockJob *do_test_id(BlockBackend *blk, const char *id,
                            bool should_succeed)
{
    return mk_job(blk, id, &test_block_job_driver,
                  should_succeed, JOB_DEFAULT);
}

/* This creates a BlockBackend (optionally with a name) with a
 * BlockDriverState inserted. */
static BlockBackend *create_blk(const char *name)
{
    /* No I/O is performed on this device */
    BlockBackend *blk = blk_new(qemu_get_aio_context(), 0, BLK_PERM_ALL);
    BlockDriverState *bs;

    QDict *opt = qdict_new();
    qdict_put_str(opt, "file.read-zeroes", "on");
    bs = bdrv_open("null-co://", NULL, opt, 0, &error_abort);
    g_assert_nonnull(bs);

    blk_insert_bs(blk, bs, &error_abort);
    bdrv_unref(bs);

    if (name) {
        Error *err = NULL;
        monitor_add_blk(blk, name, &err);
        g_assert_null(err);
    }

    return blk;
}

/* This destroys the backend */
static void destroy_blk(BlockBackend *blk)
{
    if (blk_name(blk)[0] != '\0') {
        monitor_remove_blk(blk);
    }

    blk_remove_bs(blk);
    blk_unref(blk);
}

static void test_job_ids(void)
{
    BlockBackend *blk[3];
    BlockJob *job[3];

    blk[0] = create_blk(NULL);
    blk[1] = create_blk("drive1");
    blk[2] = create_blk("drive2");

    /* No job ID provided and the block backend has no name */
    job[0] = do_test_id(blk[0], NULL, false);

    /* These are all invalid job IDs */
    job[0] = do_test_id(blk[0], "0id", false);
    job[0] = do_test_id(blk[0], "",    false);
    job[0] = do_test_id(blk[0], "   ", false);
    job[0] = do_test_id(blk[0], "123", false);
    job[0] = do_test_id(blk[0], "_id", false);
    job[0] = do_test_id(blk[0], "-id", false);
    job[0] = do_test_id(blk[0], ".id", false);
    job[0] = do_test_id(blk[0], "#id", false);

    /* This one is valid */
    job[0] = do_test_id(blk[0], "id0", true);

    /* We can have two jobs in the same BDS */
    job[1] = do_test_id(blk[0], "id1", true);
    job_early_fail(&job[1]->job);

    /* Duplicate job IDs are not allowed */
    job[1] = do_test_id(blk[1], "id0", false);

    /* But once job[0] finishes we can reuse its ID */
    job_early_fail(&job[0]->job);
    job[1] = do_test_id(blk[1], "id0", true);

    /* No job ID specified, defaults to the backend name ('drive1') */
    job_early_fail(&job[1]->job);
    job[1] = do_test_id(blk[1], NULL, true);

    /* Duplicate job ID */
    job[2] = do_test_id(blk[2], "drive1", false);

    /* The ID of job[2] would default to 'drive2' but it is already in use */
    job[0] = do_test_id(blk[0], "drive2", true);
    job[2] = do_test_id(blk[2], NULL, false);

    /* This one is valid */
    job[2] = do_test_id(blk[2], "id_2", true);

    job_early_fail(&job[0]->job);
    job_early_fail(&job[1]->job);
    job_early_fail(&job[2]->job);

    destroy_blk(blk[0]);
    destroy_blk(blk[1]);
    destroy_blk(blk[2]);
}

typedef struct CancelJob {
    BlockJob common;
    BlockBackend *blk;
    bool should_converge;
    bool should_complete;
} CancelJob;

static void cancel_job_complete(Job *job, Error **errp)
{
    CancelJob *s = container_of(job, CancelJob, common.job);
    s->should_complete = true;
}

static int coroutine_fn cancel_job_run(Job *job, Error **errp)
{
    CancelJob *s = container_of(job, CancelJob, common.job);

    while (!s->should_complete) {
        if (job_is_cancelled(&s->common.job)) {
            return 0;
        }

        if (!job_is_ready(&s->common.job) && s->should_converge) {
            job_transition_to_ready(&s->common.job);
        }

        job_sleep_ns(&s->common.job, 100000);
    }

    return 0;
}

static const BlockJobDriver test_cancel_driver = {
    .job_driver = {
        .instance_size = sizeof(CancelJob),
        .free          = block_job_free,
        .user_resume   = block_job_user_resume,
        .run           = cancel_job_run,
        .complete      = cancel_job_complete,
    },
};

static CancelJob *create_common(Job **pjob)
{
    BlockBackend *blk;
    Job *job;
    BlockJob *bjob;
    CancelJob *s;

    blk = create_blk(NULL);
    bjob = mk_job(blk, "Steve", &test_cancel_driver, true,
                  JOB_MANUAL_FINALIZE | JOB_MANUAL_DISMISS);
    job = &bjob->job;
    job_ref(job);
    assert(job->status == JOB_STATUS_CREATED);
    s = container_of(bjob, CancelJob, common);
    s->blk = blk;

    *pjob = job;
    return s;
}

static void cancel_common(CancelJob *s)
{
    BlockJob *job = &s->common;
    BlockBackend *blk = s->blk;
    JobStatus sts = job->job.status;
    AioContext *ctx;

    ctx = job->job.aio_context;
    aio_context_acquire(ctx);

    job_cancel_sync(&job->job);
    if (sts != JOB_STATUS_CREATED && sts != JOB_STATUS_CONCLUDED) {
        Job *dummy = &job->job;
        job_dismiss(&dummy, &error_abort);
    }
    assert(job->job.status == JOB_STATUS_NULL);
    job_unref(&job->job);
    destroy_blk(blk);

    aio_context_release(ctx);
}

static void test_cancel_created(void)
{
    Job *job;
    CancelJob *s;

    s = create_common(&job);
    cancel_common(s);
}

static void test_cancel_running(void)
{
    Job *job;
    CancelJob *s;

    s = create_common(&job);

    job_start(job);
    assert(job->status == JOB_STATUS_RUNNING);

    cancel_common(s);
}

static void test_cancel_paused(void)
{
    Job *job;
    CancelJob *s;

    s = create_common(&job);

    job_start(job);
    assert(job->status == JOB_STATUS_RUNNING);

    job_user_pause(job, &error_abort);
    job_enter(job);
    assert(job->status == JOB_STATUS_PAUSED);

    cancel_common(s);
}

static void test_cancel_ready(void)
{
    Job *job;
    CancelJob *s;

    s = create_common(&job);

    job_start(job);
    assert(job->status == JOB_STATUS_RUNNING);

    s->should_converge = true;
    job_enter(job);
    assert(job->status == JOB_STATUS_READY);

    cancel_common(s);
}

static void test_cancel_standby(void)
{
    Job *job;
    CancelJob *s;

    s = create_common(&job);

    job_start(job);
    assert(job->status == JOB_STATUS_RUNNING);

    s->should_converge = true;
    job_enter(job);
    assert(job->status == JOB_STATUS_READY);

    job_user_pause(job, &error_abort);
    job_enter(job);
    assert(job->status == JOB_STATUS_STANDBY);

    cancel_common(s);
}

static void test_cancel_pending(void)
{
    Job *job;
    CancelJob *s;

    s = create_common(&job);

    job_start(job);
    assert(job->status == JOB_STATUS_RUNNING);

    s->should_converge = true;
    job_enter(job);
    assert(job->status == JOB_STATUS_READY);

    job_complete(job, &error_abort);
    job_enter(job);
    while (!job->deferred_to_main_loop) {
        aio_poll(qemu_get_aio_context(), true);
    }
    assert(job->status == JOB_STATUS_READY);
    aio_poll(qemu_get_aio_context(), true);
    assert(job->status == JOB_STATUS_PENDING);

    cancel_common(s);
}

static void test_cancel_concluded(void)
{
    Job *job;
    CancelJob *s;

    s = create_common(&job);

    job_start(job);
    assert(job->status == JOB_STATUS_RUNNING);

    s->should_converge = true;
    job_enter(job);
    assert(job->status == JOB_STATUS_READY);

    job_complete(job, &error_abort);
    job_enter(job);
    while (!job->deferred_to_main_loop) {
        aio_poll(qemu_get_aio_context(), true);
    }
    assert(job->status == JOB_STATUS_READY);
    aio_poll(qemu_get_aio_context(), true);
    assert(job->status == JOB_STATUS_PENDING);

    job_finalize(job, &error_abort);
    assert(job->status == JOB_STATUS_CONCLUDED);

    cancel_common(s);
}

int main(int argc, char **argv)
{
    qemu_init_main_loop(&error_abort);
    bdrv_init();

    g_test_init(&argc, &argv, NULL);
    g_test_add_func("/blockjob/ids", test_job_ids);
    g_test_add_func("/blockjob/cancel/created", test_cancel_created);
    g_test_add_func("/blockjob/cancel/running", test_cancel_running);
    g_test_add_func("/blockjob/cancel/paused", test_cancel_paused);
    g_test_add_func("/blockjob/cancel/ready", test_cancel_ready);
    g_test_add_func("/blockjob/cancel/standby", test_cancel_standby);
    g_test_add_func("/blockjob/cancel/pending", test_cancel_pending);
    g_test_add_func("/blockjob/cancel/concluded", test_cancel_concluded);
    return g_test_run();
}