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