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Diffstat (limited to 'tests/test-blockjob-txn.c')
-rw-r--r-- | tests/test-blockjob-txn.c | 262 |
1 files changed, 0 insertions, 262 deletions
diff --git a/tests/test-blockjob-txn.c b/tests/test-blockjob-txn.c deleted file mode 100644 index 8bd13b9949..0000000000 --- a/tests/test-blockjob-txn.c +++ /dev/null @@ -1,262 +0,0 @@ -/* - * Blockjob transactions tests - * - * Copyright Red Hat, Inc. 2015 - * - * Authors: - * Stefan Hajnoczi <stefanha@redhat.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" - -typedef struct { - BlockJob common; - unsigned int iterations; - bool use_timer; - int rc; - int *result; -} TestBlockJob; - -static void test_block_job_clean(Job *job) -{ - BlockJob *bjob = container_of(job, BlockJob, job); - BlockDriverState *bs = blk_bs(bjob->blk); - - bdrv_unref(bs); -} - -static int coroutine_fn test_block_job_run(Job *job, Error **errp) -{ - TestBlockJob *s = container_of(job, TestBlockJob, common.job); - - while (s->iterations--) { - if (s->use_timer) { - job_sleep_ns(job, 0); - } else { - job_yield(job); - } - - if (job_is_cancelled(job)) { - break; - } - } - - return s->rc; -} - -typedef struct { - TestBlockJob *job; - int *result; -} TestBlockJobCBData; - -static void test_block_job_cb(void *opaque, int ret) -{ - TestBlockJobCBData *data = opaque; - if (!ret && job_is_cancelled(&data->job->common.job)) { - ret = -ECANCELED; - } - *data->result = ret; - g_free(data); -} - -static const BlockJobDriver test_block_job_driver = { - .job_driver = { - .instance_size = sizeof(TestBlockJob), - .free = block_job_free, - .user_resume = block_job_user_resume, - .run = test_block_job_run, - .clean = test_block_job_clean, - }, -}; - -/* Create a block job that completes with a given return code after a given - * number of event loop iterations. The return code is stored in the given - * result pointer. - * - * The event loop iterations can either be handled automatically with a 0 delay - * timer, or they can be stepped manually by entering the coroutine. - */ -static BlockJob *test_block_job_start(unsigned int iterations, - bool use_timer, - int rc, int *result, JobTxn *txn) -{ - BlockDriverState *bs; - TestBlockJob *s; - TestBlockJobCBData *data; - static unsigned counter; - char job_id[24]; - - data = g_new0(TestBlockJobCBData, 1); - - 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); - - snprintf(job_id, sizeof(job_id), "job%u", counter++); - s = block_job_create(job_id, &test_block_job_driver, txn, bs, - 0, BLK_PERM_ALL, 0, JOB_DEFAULT, - test_block_job_cb, data, &error_abort); - s->iterations = iterations; - s->use_timer = use_timer; - s->rc = rc; - s->result = result; - data->job = s; - data->result = result; - return &s->common; -} - -static void test_single_job(int expected) -{ - BlockJob *job; - JobTxn *txn; - int result = -EINPROGRESS; - - txn = job_txn_new(); - job = test_block_job_start(1, true, expected, &result, txn); - job_start(&job->job); - - if (expected == -ECANCELED) { - job_cancel(&job->job, false); - } - - while (result == -EINPROGRESS) { - aio_poll(qemu_get_aio_context(), true); - } - g_assert_cmpint(result, ==, expected); - - job_txn_unref(txn); -} - -static void test_single_job_success(void) -{ - test_single_job(0); -} - -static void test_single_job_failure(void) -{ - test_single_job(-EIO); -} - -static void test_single_job_cancel(void) -{ - test_single_job(-ECANCELED); -} - -static void test_pair_jobs(int expected1, int expected2) -{ - BlockJob *job1; - BlockJob *job2; - JobTxn *txn; - int result1 = -EINPROGRESS; - int result2 = -EINPROGRESS; - - txn = job_txn_new(); - job1 = test_block_job_start(1, true, expected1, &result1, txn); - job2 = test_block_job_start(2, true, expected2, &result2, txn); - job_start(&job1->job); - job_start(&job2->job); - - /* Release our reference now to trigger as many nice - * use-after-free bugs as possible. - */ - job_txn_unref(txn); - - if (expected1 == -ECANCELED) { - job_cancel(&job1->job, false); - } - if (expected2 == -ECANCELED) { - job_cancel(&job2->job, false); - } - - while (result1 == -EINPROGRESS || result2 == -EINPROGRESS) { - aio_poll(qemu_get_aio_context(), true); - } - - /* Failure or cancellation of one job cancels the other job */ - if (expected1 != 0) { - expected2 = -ECANCELED; - } else if (expected2 != 0) { - expected1 = -ECANCELED; - } - - g_assert_cmpint(result1, ==, expected1); - g_assert_cmpint(result2, ==, expected2); -} - -static void test_pair_jobs_success(void) -{ - test_pair_jobs(0, 0); -} - -static void test_pair_jobs_failure(void) -{ - /* Test both orderings. The two jobs run for a different number of - * iterations so the code path is different depending on which job fails - * first. - */ - test_pair_jobs(-EIO, 0); - test_pair_jobs(0, -EIO); -} - -static void test_pair_jobs_cancel(void) -{ - test_pair_jobs(-ECANCELED, 0); - test_pair_jobs(0, -ECANCELED); -} - -static void test_pair_jobs_fail_cancel_race(void) -{ - BlockJob *job1; - BlockJob *job2; - JobTxn *txn; - int result1 = -EINPROGRESS; - int result2 = -EINPROGRESS; - - txn = job_txn_new(); - job1 = test_block_job_start(1, true, -ECANCELED, &result1, txn); - job2 = test_block_job_start(2, false, 0, &result2, txn); - job_start(&job1->job); - job_start(&job2->job); - - job_cancel(&job1->job, false); - - /* Now make job2 finish before the main loop kicks jobs. This simulates - * the race between a pending kick and another job completing. - */ - job_enter(&job2->job); - job_enter(&job2->job); - - while (result1 == -EINPROGRESS || result2 == -EINPROGRESS) { - aio_poll(qemu_get_aio_context(), true); - } - - g_assert_cmpint(result1, ==, -ECANCELED); - g_assert_cmpint(result2, ==, -ECANCELED); - - job_txn_unref(txn); -} - -int main(int argc, char **argv) -{ - qemu_init_main_loop(&error_abort); - bdrv_init(); - - g_test_init(&argc, &argv, NULL); - g_test_add_func("/single/success", test_single_job_success); - g_test_add_func("/single/failure", test_single_job_failure); - g_test_add_func("/single/cancel", test_single_job_cancel); - g_test_add_func("/pair/success", test_pair_jobs_success); - g_test_add_func("/pair/failure", test_pair_jobs_failure); - g_test_add_func("/pair/cancel", test_pair_jobs_cancel); - g_test_add_func("/pair/fail-cancel-race", test_pair_jobs_fail_cancel_race); - return g_test_run(); -} |