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-rw-r--r--qemu/tests/test-thread-pool.c251
1 files changed, 0 insertions, 251 deletions
diff --git a/qemu/tests/test-thread-pool.c b/qemu/tests/test-thread-pool.c
deleted file mode 100644
index 88dc7316b..000000000
--- a/qemu/tests/test-thread-pool.c
+++ /dev/null
@@ -1,251 +0,0 @@
-#include "qemu/osdep.h"
-#include <glib.h>
-#include "qemu-common.h"
-#include "block/aio.h"
-#include "block/thread-pool.h"
-#include "block/block.h"
-#include "qapi/error.h"
-#include "qemu/timer.h"
-#include "qemu/error-report.h"
-
-static AioContext *ctx;
-static ThreadPool *pool;
-static int active;
-
-typedef struct {
- BlockAIOCB *aiocb;
- int n;
- int ret;
-} WorkerTestData;
-
-static int worker_cb(void *opaque)
-{
- WorkerTestData *data = opaque;
- return atomic_fetch_inc(&data->n);
-}
-
-static int long_cb(void *opaque)
-{
- WorkerTestData *data = opaque;
- atomic_inc(&data->n);
- g_usleep(2000000);
- atomic_inc(&data->n);
- return 0;
-}
-
-static void done_cb(void *opaque, int ret)
-{
- WorkerTestData *data = opaque;
- g_assert(data->ret == -EINPROGRESS || data->ret == -ECANCELED);
- data->ret = ret;
- data->aiocb = NULL;
-
- /* Callbacks are serialized, so no need to use atomic ops. */
- active--;
-}
-
-static void test_submit(void)
-{
- WorkerTestData data = { .n = 0 };
- thread_pool_submit(pool, worker_cb, &data);
- while (data.n == 0) {
- aio_poll(ctx, true);
- }
- g_assert_cmpint(data.n, ==, 1);
-}
-
-static void test_submit_aio(void)
-{
- WorkerTestData data = { .n = 0, .ret = -EINPROGRESS };
- data.aiocb = thread_pool_submit_aio(pool, worker_cb, &data,
- done_cb, &data);
-
- /* The callbacks are not called until after the first wait. */
- active = 1;
- g_assert_cmpint(data.ret, ==, -EINPROGRESS);
- while (data.ret == -EINPROGRESS) {
- aio_poll(ctx, true);
- }
- g_assert_cmpint(active, ==, 0);
- g_assert_cmpint(data.n, ==, 1);
- g_assert_cmpint(data.ret, ==, 0);
-}
-
-static void co_test_cb(void *opaque)
-{
- WorkerTestData *data = opaque;
-
- active = 1;
- data->n = 0;
- data->ret = -EINPROGRESS;
- thread_pool_submit_co(pool, worker_cb, data);
-
- /* The test continues in test_submit_co, after qemu_coroutine_enter... */
-
- g_assert_cmpint(data->n, ==, 1);
- data->ret = 0;
- active--;
-
- /* The test continues in test_submit_co, after aio_poll... */
-}
-
-static void test_submit_co(void)
-{
- WorkerTestData data;
- Coroutine *co = qemu_coroutine_create(co_test_cb);
-
- qemu_coroutine_enter(co, &data);
-
- /* Back here once the worker has started. */
-
- g_assert_cmpint(active, ==, 1);
- g_assert_cmpint(data.ret, ==, -EINPROGRESS);
-
- /* aio_poll will execute the rest of the coroutine. */
-
- while (data.ret == -EINPROGRESS) {
- aio_poll(ctx, true);
- }
-
- /* Back here after the coroutine has finished. */
-
- g_assert_cmpint(active, ==, 0);
- g_assert_cmpint(data.ret, ==, 0);
-}
-
-static void test_submit_many(void)
-{
- WorkerTestData data[100];
- int i;
-
- /* Start more work items than there will be threads. */
- for (i = 0; i < 100; i++) {
- data[i].n = 0;
- data[i].ret = -EINPROGRESS;
- thread_pool_submit_aio(pool, worker_cb, &data[i], done_cb, &data[i]);
- }
-
- active = 100;
- while (active > 0) {
- aio_poll(ctx, true);
- }
- for (i = 0; i < 100; i++) {
- g_assert_cmpint(data[i].n, ==, 1);
- g_assert_cmpint(data[i].ret, ==, 0);
- }
-}
-
-static void do_test_cancel(bool sync)
-{
- WorkerTestData data[100];
- int num_canceled;
- int i;
-
- /* Start more work items than there will be threads, to ensure
- * the pool is full.
- */
- test_submit_many();
-
- /* Start long running jobs, to ensure we can cancel some. */
- for (i = 0; i < 100; i++) {
- data[i].n = 0;
- data[i].ret = -EINPROGRESS;
- data[i].aiocb = thread_pool_submit_aio(pool, long_cb, &data[i],
- done_cb, &data[i]);
- }
-
- /* Starting the threads may be left to a bottom half. Let it
- * run, but do not waste too much time...
- */
- active = 100;
- aio_notify(ctx);
- aio_poll(ctx, false);
-
- /* Wait some time for the threads to start, with some sanity
- * testing on the behavior of the scheduler...
- */
- g_assert_cmpint(active, ==, 100);
- g_usleep(1000000);
- g_assert_cmpint(active, >, 50);
-
- /* Cancel the jobs that haven't been started yet. */
- num_canceled = 0;
- for (i = 0; i < 100; i++) {
- if (atomic_cmpxchg(&data[i].n, 0, 3) == 0) {
- data[i].ret = -ECANCELED;
- if (sync) {
- bdrv_aio_cancel(data[i].aiocb);
- } else {
- bdrv_aio_cancel_async(data[i].aiocb);
- }
- num_canceled++;
- }
- }
- g_assert_cmpint(active, >, 0);
- g_assert_cmpint(num_canceled, <, 100);
-
- for (i = 0; i < 100; i++) {
- if (data[i].aiocb && data[i].n != 3) {
- if (sync) {
- /* Canceling the others will be a blocking operation. */
- bdrv_aio_cancel(data[i].aiocb);
- } else {
- bdrv_aio_cancel_async(data[i].aiocb);
- }
- }
- }
-
- /* Finish execution and execute any remaining callbacks. */
- while (active > 0) {
- aio_poll(ctx, true);
- }
- g_assert_cmpint(active, ==, 0);
- for (i = 0; i < 100; i++) {
- if (data[i].n == 3) {
- g_assert_cmpint(data[i].ret, ==, -ECANCELED);
- g_assert(data[i].aiocb == NULL);
- } else {
- g_assert_cmpint(data[i].n, ==, 2);
- g_assert(data[i].ret == 0 || data[i].ret == -ECANCELED);
- g_assert(data[i].aiocb == NULL);
- }
- }
-}
-
-static void test_cancel(void)
-{
- do_test_cancel(true);
-}
-
-static void test_cancel_async(void)
-{
- do_test_cancel(false);
-}
-
-int main(int argc, char **argv)
-{
- int ret;
- Error *local_error = NULL;
-
- init_clocks();
-
- ctx = aio_context_new(&local_error);
- if (!ctx) {
- error_reportf_err(local_error, "Failed to create AIO Context: ");
- exit(1);
- }
- pool = aio_get_thread_pool(ctx);
-
- g_test_init(&argc, &argv, NULL);
- g_test_add_func("/thread-pool/submit", test_submit);
- g_test_add_func("/thread-pool/submit-aio", test_submit_aio);
- g_test_add_func("/thread-pool/submit-co", test_submit_co);
- g_test_add_func("/thread-pool/submit-many", test_submit_many);
- g_test_add_func("/thread-pool/cancel", test_cancel);
- g_test_add_func("/thread-pool/cancel-async", test_cancel_async);
-
- ret = g_test_run();
-
- aio_context_unref(ctx);
- return ret;
-}