net: stellaris_enet: check packet length against receive buffer
[qemu.git] / tests / test-thread-pool.c
blob88dc7316b3fd0b7731ad24337d7d3ffa6cf1c506
1 #include "qemu/osdep.h"
2 #include <glib.h>
3 #include "qemu-common.h"
4 #include "block/aio.h"
5 #include "block/thread-pool.h"
6 #include "block/block.h"
7 #include "qapi/error.h"
8 #include "qemu/timer.h"
9 #include "qemu/error-report.h"
11 static AioContext *ctx;
12 static ThreadPool *pool;
13 static int active;
15 typedef struct {
16 BlockAIOCB *aiocb;
17 int n;
18 int ret;
19 } WorkerTestData;
21 static int worker_cb(void *opaque)
23 WorkerTestData *data = opaque;
24 return atomic_fetch_inc(&data->n);
27 static int long_cb(void *opaque)
29 WorkerTestData *data = opaque;
30 atomic_inc(&data->n);
31 g_usleep(2000000);
32 atomic_inc(&data->n);
33 return 0;
36 static void done_cb(void *opaque, int ret)
38 WorkerTestData *data = opaque;
39 g_assert(data->ret == -EINPROGRESS || data->ret == -ECANCELED);
40 data->ret = ret;
41 data->aiocb = NULL;
43 /* Callbacks are serialized, so no need to use atomic ops. */
44 active--;
47 static void test_submit(void)
49 WorkerTestData data = { .n = 0 };
50 thread_pool_submit(pool, worker_cb, &data);
51 while (data.n == 0) {
52 aio_poll(ctx, true);
54 g_assert_cmpint(data.n, ==, 1);
57 static void test_submit_aio(void)
59 WorkerTestData data = { .n = 0, .ret = -EINPROGRESS };
60 data.aiocb = thread_pool_submit_aio(pool, worker_cb, &data,
61 done_cb, &data);
63 /* The callbacks are not called until after the first wait. */
64 active = 1;
65 g_assert_cmpint(data.ret, ==, -EINPROGRESS);
66 while (data.ret == -EINPROGRESS) {
67 aio_poll(ctx, true);
69 g_assert_cmpint(active, ==, 0);
70 g_assert_cmpint(data.n, ==, 1);
71 g_assert_cmpint(data.ret, ==, 0);
74 static void co_test_cb(void *opaque)
76 WorkerTestData *data = opaque;
78 active = 1;
79 data->n = 0;
80 data->ret = -EINPROGRESS;
81 thread_pool_submit_co(pool, worker_cb, data);
83 /* The test continues in test_submit_co, after qemu_coroutine_enter... */
85 g_assert_cmpint(data->n, ==, 1);
86 data->ret = 0;
87 active--;
89 /* The test continues in test_submit_co, after aio_poll... */
92 static void test_submit_co(void)
94 WorkerTestData data;
95 Coroutine *co = qemu_coroutine_create(co_test_cb);
97 qemu_coroutine_enter(co, &data);
99 /* Back here once the worker has started. */
101 g_assert_cmpint(active, ==, 1);
102 g_assert_cmpint(data.ret, ==, -EINPROGRESS);
104 /* aio_poll will execute the rest of the coroutine. */
106 while (data.ret == -EINPROGRESS) {
107 aio_poll(ctx, true);
110 /* Back here after the coroutine has finished. */
112 g_assert_cmpint(active, ==, 0);
113 g_assert_cmpint(data.ret, ==, 0);
116 static void test_submit_many(void)
118 WorkerTestData data[100];
119 int i;
121 /* Start more work items than there will be threads. */
122 for (i = 0; i < 100; i++) {
123 data[i].n = 0;
124 data[i].ret = -EINPROGRESS;
125 thread_pool_submit_aio(pool, worker_cb, &data[i], done_cb, &data[i]);
128 active = 100;
129 while (active > 0) {
130 aio_poll(ctx, true);
132 for (i = 0; i < 100; i++) {
133 g_assert_cmpint(data[i].n, ==, 1);
134 g_assert_cmpint(data[i].ret, ==, 0);
138 static void do_test_cancel(bool sync)
140 WorkerTestData data[100];
141 int num_canceled;
142 int i;
144 /* Start more work items than there will be threads, to ensure
145 * the pool is full.
147 test_submit_many();
149 /* Start long running jobs, to ensure we can cancel some. */
150 for (i = 0; i < 100; i++) {
151 data[i].n = 0;
152 data[i].ret = -EINPROGRESS;
153 data[i].aiocb = thread_pool_submit_aio(pool, long_cb, &data[i],
154 done_cb, &data[i]);
157 /* Starting the threads may be left to a bottom half. Let it
158 * run, but do not waste too much time...
160 active = 100;
161 aio_notify(ctx);
162 aio_poll(ctx, false);
164 /* Wait some time for the threads to start, with some sanity
165 * testing on the behavior of the scheduler...
167 g_assert_cmpint(active, ==, 100);
168 g_usleep(1000000);
169 g_assert_cmpint(active, >, 50);
171 /* Cancel the jobs that haven't been started yet. */
172 num_canceled = 0;
173 for (i = 0; i < 100; i++) {
174 if (atomic_cmpxchg(&data[i].n, 0, 3) == 0) {
175 data[i].ret = -ECANCELED;
176 if (sync) {
177 bdrv_aio_cancel(data[i].aiocb);
178 } else {
179 bdrv_aio_cancel_async(data[i].aiocb);
181 num_canceled++;
184 g_assert_cmpint(active, >, 0);
185 g_assert_cmpint(num_canceled, <, 100);
187 for (i = 0; i < 100; i++) {
188 if (data[i].aiocb && data[i].n != 3) {
189 if (sync) {
190 /* Canceling the others will be a blocking operation. */
191 bdrv_aio_cancel(data[i].aiocb);
192 } else {
193 bdrv_aio_cancel_async(data[i].aiocb);
198 /* Finish execution and execute any remaining callbacks. */
199 while (active > 0) {
200 aio_poll(ctx, true);
202 g_assert_cmpint(active, ==, 0);
203 for (i = 0; i < 100; i++) {
204 if (data[i].n == 3) {
205 g_assert_cmpint(data[i].ret, ==, -ECANCELED);
206 g_assert(data[i].aiocb == NULL);
207 } else {
208 g_assert_cmpint(data[i].n, ==, 2);
209 g_assert(data[i].ret == 0 || data[i].ret == -ECANCELED);
210 g_assert(data[i].aiocb == NULL);
215 static void test_cancel(void)
217 do_test_cancel(true);
220 static void test_cancel_async(void)
222 do_test_cancel(false);
225 int main(int argc, char **argv)
227 int ret;
228 Error *local_error = NULL;
230 init_clocks();
232 ctx = aio_context_new(&local_error);
233 if (!ctx) {
234 error_reportf_err(local_error, "Failed to create AIO Context: ");
235 exit(1);
237 pool = aio_get_thread_pool(ctx);
239 g_test_init(&argc, &argv, NULL);
240 g_test_add_func("/thread-pool/submit", test_submit);
241 g_test_add_func("/thread-pool/submit-aio", test_submit_aio);
242 g_test_add_func("/thread-pool/submit-co", test_submit_co);
243 g_test_add_func("/thread-pool/submit-many", test_submit_many);
244 g_test_add_func("/thread-pool/cancel", test_cancel);
245 g_test_add_func("/thread-pool/cancel-async", test_cancel_async);
247 ret = g_test_run();
249 aio_context_unref(ctx);
250 return ret;