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13#include "qemu/osdep.h"
14#include "qapi/error.h"
15#include "qemu/main-loop.h"
16#include "block/blockjob_int.h"
17#include "sysemu/block-backend.h"
18#include "qapi/qmp/qdict.h"
19
20typedef struct {
21 BlockJob common;
22 unsigned int iterations;
23 bool use_timer;
24 int rc;
25 int *result;
26} TestBlockJob;
27
28static void test_block_job_clean(Job *job)
29{
30 BlockJob *bjob = container_of(job, BlockJob, job);
31 BlockDriverState *bs = blk_bs(bjob->blk);
32
33 bdrv_unref(bs);
34}
35
36static int coroutine_fn test_block_job_run(Job *job, Error **errp)
37{
38 TestBlockJob *s = container_of(job, TestBlockJob, common.job);
39
40 while (s->iterations--) {
41 if (s->use_timer) {
42 job_sleep_ns(job, 0);
43 } else {
44 job_yield(job);
45 }
46
47 if (job_is_cancelled(job)) {
48 break;
49 }
50 }
51
52 return s->rc;
53}
54
55typedef struct {
56 TestBlockJob *job;
57 int *result;
58} TestBlockJobCBData;
59
60static void test_block_job_cb(void *opaque, int ret)
61{
62 TestBlockJobCBData *data = opaque;
63 if (!ret && job_is_cancelled(&data->job->common.job)) {
64 ret = -ECANCELED;
65 }
66 *data->result = ret;
67 g_free(data);
68}
69
70static const BlockJobDriver test_block_job_driver = {
71 .job_driver = {
72 .instance_size = sizeof(TestBlockJob),
73 .free = block_job_free,
74 .user_resume = block_job_user_resume,
75 .run = test_block_job_run,
76 .clean = test_block_job_clean,
77 },
78};
79
80
81
82
83
84
85
86
87static BlockJob *test_block_job_start(unsigned int iterations,
88 bool use_timer,
89 int rc, int *result, JobTxn *txn)
90{
91 BlockDriverState *bs;
92 TestBlockJob *s;
93 TestBlockJobCBData *data;
94 static unsigned counter;
95 char job_id[24];
96
97 data = g_new0(TestBlockJobCBData, 1);
98
99 QDict *opt = qdict_new();
100 qdict_put_str(opt, "file.read-zeroes", "on");
101 bs = bdrv_open("null-co://", NULL, opt, 0, &error_abort);
102 g_assert_nonnull(bs);
103
104 snprintf(job_id, sizeof(job_id), "job%u", counter++);
105 s = block_job_create(job_id, &test_block_job_driver, txn, bs,
106 0, BLK_PERM_ALL, 0, JOB_DEFAULT,
107 test_block_job_cb, data, &error_abort);
108 s->iterations = iterations;
109 s->use_timer = use_timer;
110 s->rc = rc;
111 s->result = result;
112 data->job = s;
113 data->result = result;
114 return &s->common;
115}
116
117static void test_single_job(int expected)
118{
119 BlockJob *job;
120 JobTxn *txn;
121 int result = -EINPROGRESS;
122
123 txn = job_txn_new();
124 job = test_block_job_start(1, true, expected, &result, txn);
125 job_start(&job->job);
126
127 if (expected == -ECANCELED) {
128 job_cancel(&job->job, false);
129 }
130
131 while (result == -EINPROGRESS) {
132 aio_poll(qemu_get_aio_context(), true);
133 }
134 g_assert_cmpint(result, ==, expected);
135
136 job_txn_unref(txn);
137}
138
139static void test_single_job_success(void)
140{
141 test_single_job(0);
142}
143
144static void test_single_job_failure(void)
145{
146 test_single_job(-EIO);
147}
148
149static void test_single_job_cancel(void)
150{
151 test_single_job(-ECANCELED);
152}
153
154static void test_pair_jobs(int expected1, int expected2)
155{
156 BlockJob *job1;
157 BlockJob *job2;
158 JobTxn *txn;
159 int result1 = -EINPROGRESS;
160 int result2 = -EINPROGRESS;
161
162 txn = job_txn_new();
163 job1 = test_block_job_start(1, true, expected1, &result1, txn);
164 job2 = test_block_job_start(2, true, expected2, &result2, txn);
165 job_start(&job1->job);
166 job_start(&job2->job);
167
168
169
170
171 job_txn_unref(txn);
172
173 if (expected1 == -ECANCELED) {
174 job_cancel(&job1->job, false);
175 }
176 if (expected2 == -ECANCELED) {
177 job_cancel(&job2->job, false);
178 }
179
180 while (result1 == -EINPROGRESS || result2 == -EINPROGRESS) {
181 aio_poll(qemu_get_aio_context(), true);
182 }
183
184
185 if (expected1 != 0) {
186 expected2 = -ECANCELED;
187 } else if (expected2 != 0) {
188 expected1 = -ECANCELED;
189 }
190
191 g_assert_cmpint(result1, ==, expected1);
192 g_assert_cmpint(result2, ==, expected2);
193}
194
195static void test_pair_jobs_success(void)
196{
197 test_pair_jobs(0, 0);
198}
199
200static void test_pair_jobs_failure(void)
201{
202
203
204
205
206 test_pair_jobs(-EIO, 0);
207 test_pair_jobs(0, -EIO);
208}
209
210static void test_pair_jobs_cancel(void)
211{
212 test_pair_jobs(-ECANCELED, 0);
213 test_pair_jobs(0, -ECANCELED);
214}
215
216static void test_pair_jobs_fail_cancel_race(void)
217{
218 BlockJob *job1;
219 BlockJob *job2;
220 JobTxn *txn;
221 int result1 = -EINPROGRESS;
222 int result2 = -EINPROGRESS;
223
224 txn = job_txn_new();
225 job1 = test_block_job_start(1, true, -ECANCELED, &result1, txn);
226 job2 = test_block_job_start(2, false, 0, &result2, txn);
227 job_start(&job1->job);
228 job_start(&job2->job);
229
230 job_cancel(&job1->job, false);
231
232
233
234
235 job_enter(&job2->job);
236 job_enter(&job2->job);
237
238 while (result1 == -EINPROGRESS || result2 == -EINPROGRESS) {
239 aio_poll(qemu_get_aio_context(), true);
240 }
241
242 g_assert_cmpint(result1, ==, -ECANCELED);
243 g_assert_cmpint(result2, ==, -ECANCELED);
244
245 job_txn_unref(txn);
246}
247
248int main(int argc, char **argv)
249{
250 qemu_init_main_loop(&error_abort);
251 bdrv_init();
252
253 g_test_init(&argc, &argv, NULL);
254 g_test_add_func("/single/success", test_single_job_success);
255 g_test_add_func("/single/failure", test_single_job_failure);
256 g_test_add_func("/single/cancel", test_single_job_cancel);
257 g_test_add_func("/pair/success", test_pair_jobs_success);
258 g_test_add_func("/pair/failure", test_pair_jobs_failure);
259 g_test_add_func("/pair/cancel", test_pair_jobs_cancel);
260 g_test_add_func("/pair/fail-cancel-race", test_pair_jobs_fail_cancel_race);
261 return g_test_run();
262}
263