mirror of https://gitee.com/openkylin/qemu.git
388 lines
9.4 KiB
C
388 lines
9.4 KiB
C
/*
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* Blockjob tests
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*
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* Copyright Igalia, S.L. 2016
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*
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* Authors:
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* Alberto Garcia <berto@igalia.com>
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*
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* This work is licensed under the terms of the GNU LGPL, version 2 or later.
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* See the COPYING.LIB file in the top-level directory.
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*/
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#include "qemu/osdep.h"
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#include "qapi/error.h"
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#include "qemu/main-loop.h"
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#include "block/blockjob_int.h"
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#include "sysemu/block-backend.h"
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static const BlockJobDriver test_block_job_driver = {
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.job_driver = {
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.instance_size = sizeof(BlockJob),
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.free = block_job_free,
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.user_resume = block_job_user_resume,
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.drain = block_job_drain,
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},
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};
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static void block_job_cb(void *opaque, int ret)
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{
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}
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static BlockJob *mk_job(BlockBackend *blk, const char *id,
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const BlockJobDriver *drv, bool should_succeed,
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int flags)
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{
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BlockJob *job;
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Error *errp = NULL;
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job = block_job_create(id, drv, NULL, blk_bs(blk),
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0, BLK_PERM_ALL, 0, flags, block_job_cb,
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NULL, &errp);
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if (should_succeed) {
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g_assert_null(errp);
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g_assert_nonnull(job);
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if (id) {
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g_assert_cmpstr(job->job.id, ==, id);
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} else {
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g_assert_cmpstr(job->job.id, ==, blk_name(blk));
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}
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} else {
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g_assert_nonnull(errp);
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g_assert_null(job);
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error_free(errp);
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}
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return job;
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}
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static BlockJob *do_test_id(BlockBackend *blk, const char *id,
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bool should_succeed)
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{
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return mk_job(blk, id, &test_block_job_driver,
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should_succeed, JOB_DEFAULT);
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}
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/* This creates a BlockBackend (optionally with a name) with a
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* BlockDriverState inserted. */
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static BlockBackend *create_blk(const char *name)
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{
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/* No I/O is performed on this device */
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BlockBackend *blk = blk_new(0, BLK_PERM_ALL);
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BlockDriverState *bs;
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bs = bdrv_open("null-co://", NULL, NULL, 0, &error_abort);
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g_assert_nonnull(bs);
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blk_insert_bs(blk, bs, &error_abort);
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bdrv_unref(bs);
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if (name) {
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Error *errp = NULL;
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monitor_add_blk(blk, name, &errp);
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g_assert_null(errp);
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}
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return blk;
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}
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/* This destroys the backend */
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static void destroy_blk(BlockBackend *blk)
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{
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if (blk_name(blk)[0] != '\0') {
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monitor_remove_blk(blk);
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}
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blk_remove_bs(blk);
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blk_unref(blk);
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}
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static void test_job_ids(void)
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{
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BlockBackend *blk[3];
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BlockJob *job[3];
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blk[0] = create_blk(NULL);
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blk[1] = create_blk("drive1");
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blk[2] = create_blk("drive2");
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/* No job ID provided and the block backend has no name */
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job[0] = do_test_id(blk[0], NULL, false);
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/* These are all invalid job IDs */
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job[0] = do_test_id(blk[0], "0id", false);
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job[0] = do_test_id(blk[0], "", false);
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job[0] = do_test_id(blk[0], " ", false);
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job[0] = do_test_id(blk[0], "123", false);
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job[0] = do_test_id(blk[0], "_id", false);
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job[0] = do_test_id(blk[0], "-id", false);
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job[0] = do_test_id(blk[0], ".id", false);
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job[0] = do_test_id(blk[0], "#id", false);
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/* This one is valid */
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job[0] = do_test_id(blk[0], "id0", true);
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/* We cannot have two jobs in the same BDS */
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do_test_id(blk[0], "id1", false);
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/* Duplicate job IDs are not allowed */
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job[1] = do_test_id(blk[1], "id0", false);
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/* But once job[0] finishes we can reuse its ID */
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job_early_fail(&job[0]->job);
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job[1] = do_test_id(blk[1], "id0", true);
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/* No job ID specified, defaults to the backend name ('drive1') */
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job_early_fail(&job[1]->job);
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job[1] = do_test_id(blk[1], NULL, true);
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/* Duplicate job ID */
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job[2] = do_test_id(blk[2], "drive1", false);
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/* The ID of job[2] would default to 'drive2' but it is already in use */
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job[0] = do_test_id(blk[0], "drive2", true);
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job[2] = do_test_id(blk[2], NULL, false);
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/* This one is valid */
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job[2] = do_test_id(blk[2], "id_2", true);
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job_early_fail(&job[0]->job);
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job_early_fail(&job[1]->job);
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job_early_fail(&job[2]->job);
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destroy_blk(blk[0]);
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destroy_blk(blk[1]);
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destroy_blk(blk[2]);
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}
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typedef struct CancelJob {
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BlockJob common;
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BlockBackend *blk;
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bool should_converge;
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bool should_complete;
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bool completed;
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} CancelJob;
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static void cancel_job_completed(Job *job, void *opaque)
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{
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CancelJob *s = opaque;
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s->completed = true;
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job_completed(job, 0, NULL);
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}
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static void cancel_job_complete(Job *job, Error **errp)
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{
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CancelJob *s = container_of(job, CancelJob, common.job);
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s->should_complete = true;
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}
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static void coroutine_fn cancel_job_start(void *opaque)
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{
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CancelJob *s = opaque;
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while (!s->should_complete) {
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if (job_is_cancelled(&s->common.job)) {
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goto defer;
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}
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if (!job_is_ready(&s->common.job) && s->should_converge) {
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job_transition_to_ready(&s->common.job);
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}
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job_sleep_ns(&s->common.job, 100000);
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}
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defer:
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job_defer_to_main_loop(&s->common.job, cancel_job_completed, s);
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}
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static const BlockJobDriver test_cancel_driver = {
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.job_driver = {
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.instance_size = sizeof(CancelJob),
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.free = block_job_free,
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.user_resume = block_job_user_resume,
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.drain = block_job_drain,
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.start = cancel_job_start,
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.complete = cancel_job_complete,
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},
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};
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static CancelJob *create_common(BlockJob **pjob)
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{
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BlockBackend *blk;
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BlockJob *job;
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CancelJob *s;
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blk = create_blk(NULL);
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job = mk_job(blk, "Steve", &test_cancel_driver, true,
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JOB_MANUAL_FINALIZE | JOB_MANUAL_DISMISS);
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job_ref(&job->job);
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assert(job->job.status == JOB_STATUS_CREATED);
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s = container_of(job, CancelJob, common);
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s->blk = blk;
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*pjob = job;
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return s;
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}
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static void cancel_common(CancelJob *s)
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{
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BlockJob *job = &s->common;
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BlockBackend *blk = s->blk;
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JobStatus sts = job->job.status;
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job_cancel_sync(&job->job);
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if (sts != JOB_STATUS_CREATED && sts != JOB_STATUS_CONCLUDED) {
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Job *dummy = &job->job;
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job_dismiss(&dummy, &error_abort);
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}
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assert(job->job.status == JOB_STATUS_NULL);
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job_unref(&job->job);
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destroy_blk(blk);
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}
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static void test_cancel_created(void)
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{
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BlockJob *job;
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CancelJob *s;
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s = create_common(&job);
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cancel_common(s);
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}
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static void test_cancel_running(void)
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{
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BlockJob *job;
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CancelJob *s;
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s = create_common(&job);
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job_start(&job->job);
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assert(job->job.status == JOB_STATUS_RUNNING);
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cancel_common(s);
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}
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static void test_cancel_paused(void)
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{
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BlockJob *job;
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CancelJob *s;
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s = create_common(&job);
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job_start(&job->job);
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assert(job->job.status == JOB_STATUS_RUNNING);
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job_user_pause(&job->job, &error_abort);
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job_enter(&job->job);
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assert(job->job.status == JOB_STATUS_PAUSED);
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cancel_common(s);
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}
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static void test_cancel_ready(void)
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{
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BlockJob *job;
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CancelJob *s;
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s = create_common(&job);
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job_start(&job->job);
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assert(job->job.status == JOB_STATUS_RUNNING);
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s->should_converge = true;
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job_enter(&job->job);
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assert(job->job.status == JOB_STATUS_READY);
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cancel_common(s);
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}
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static void test_cancel_standby(void)
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{
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BlockJob *job;
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CancelJob *s;
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s = create_common(&job);
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job_start(&job->job);
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assert(job->job.status == JOB_STATUS_RUNNING);
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s->should_converge = true;
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job_enter(&job->job);
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assert(job->job.status == JOB_STATUS_READY);
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job_user_pause(&job->job, &error_abort);
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job_enter(&job->job);
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assert(job->job.status == JOB_STATUS_STANDBY);
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cancel_common(s);
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}
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static void test_cancel_pending(void)
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{
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BlockJob *job;
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CancelJob *s;
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s = create_common(&job);
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job_start(&job->job);
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assert(job->job.status == JOB_STATUS_RUNNING);
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s->should_converge = true;
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job_enter(&job->job);
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assert(job->job.status == JOB_STATUS_READY);
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job_complete(&job->job, &error_abort);
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job_enter(&job->job);
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while (!s->completed) {
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aio_poll(qemu_get_aio_context(), true);
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}
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assert(job->job.status == JOB_STATUS_PENDING);
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cancel_common(s);
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}
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static void test_cancel_concluded(void)
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{
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BlockJob *job;
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CancelJob *s;
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s = create_common(&job);
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job_start(&job->job);
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assert(job->job.status == JOB_STATUS_RUNNING);
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s->should_converge = true;
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job_enter(&job->job);
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assert(job->job.status == JOB_STATUS_READY);
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job_complete(&job->job, &error_abort);
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job_enter(&job->job);
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while (!s->completed) {
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aio_poll(qemu_get_aio_context(), true);
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}
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assert(job->job.status == JOB_STATUS_PENDING);
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job_finalize(&job->job, &error_abort);
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assert(job->job.status == JOB_STATUS_CONCLUDED);
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cancel_common(s);
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}
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int main(int argc, char **argv)
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{
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qemu_init_main_loop(&error_abort);
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bdrv_init();
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g_test_init(&argc, &argv, NULL);
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g_test_add_func("/blockjob/ids", test_job_ids);
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g_test_add_func("/blockjob/cancel/created", test_cancel_created);
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g_test_add_func("/blockjob/cancel/running", test_cancel_running);
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g_test_add_func("/blockjob/cancel/paused", test_cancel_paused);
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g_test_add_func("/blockjob/cancel/ready", test_cancel_ready);
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g_test_add_func("/blockjob/cancel/standby", test_cancel_standby);
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g_test_add_func("/blockjob/cancel/pending", test_cancel_pending);
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g_test_add_func("/blockjob/cancel/concluded", test_cancel_concluded);
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return g_test_run();
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}
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