[mirror_qemu.git] / tests / test-blockjob.c

/*
 * Blockjob tests
 *
 * Copyright Igalia, S.L. 2016
 *
 * Authors:
 *  Alberto Garcia   <berto@igalia.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"

static const BlockJobDriver test_block_job_driver = {
    .job_driver = {
        .instance_size = sizeof(BlockJob),
        .free          = block_job_free,
    },
};

static void block_job_cb(void *opaque, int ret)
{
}

static BlockJob *mk_job(BlockBackend *blk, const char *id,
                        const BlockJobDriver *drv, bool should_succeed,
                        int flags)
{
    BlockJob *job;
    Error *errp = NULL;

    job = block_job_create(id, drv, NULL, blk_bs(blk),
                           0, BLK_PERM_ALL, 0, flags, block_job_cb,
                           NULL, &errp);
    if (should_succeed) {
        g_assert_null(errp);
        g_assert_nonnull(job);
        if (id) {
            g_assert_cmpstr(job->job.id, ==, id);
        } else {
            g_assert_cmpstr(job->job.id, ==, blk_name(blk));
        }
    } else {
        g_assert_nonnull(errp);
        g_assert_null(job);
        error_free(errp);
    }

    return job;
}

static BlockJob *do_test_id(BlockBackend *blk, const char *id,
                            bool should_succeed)
{
    return mk_job(blk, id, &test_block_job_driver,
                  should_succeed, BLOCK_JOB_DEFAULT);
}

/* This creates a BlockBackend (optionally with a name) with a
 * BlockDriverState inserted. */
static BlockBackend *create_blk(const char *name)
{
    /* No I/O is performed on this device */
    BlockBackend *blk = blk_new(0, BLK_PERM_ALL);
    BlockDriverState *bs;

    bs = bdrv_open("null-co://", NULL, NULL, 0, &error_abort);
    g_assert_nonnull(bs);

    blk_insert_bs(blk, bs, &error_abort);
    bdrv_unref(bs);

    if (name) {
        Error *errp = NULL;
        monitor_add_blk(blk, name, &errp);
        g_assert_null(errp);
    }

    return blk;
}

/* This destroys the backend */
static void destroy_blk(BlockBackend *blk)
{
    if (blk_name(blk)[0] != '\0') {
        monitor_remove_blk(blk);
    }

    blk_remove_bs(blk);
    blk_unref(blk);
}

static void test_job_ids(void)
{
    BlockBackend *blk[3];
    BlockJob *job[3];

    blk[0] = create_blk(NULL);
    blk[1] = create_blk("drive1");
    blk[2] = create_blk("drive2");

    /* No job ID provided and the block backend has no name */
    job[0] = do_test_id(blk[0], NULL, false);

    /* These are all invalid job IDs */
    job[0] = do_test_id(blk[0], "0id", false);
    job[0] = do_test_id(blk[0], "",    false);
    job[0] = do_test_id(blk[0], "   ", false);
    job[0] = do_test_id(blk[0], "123", false);
    job[0] = do_test_id(blk[0], "_id", false);
    job[0] = do_test_id(blk[0], "-id", false);
    job[0] = do_test_id(blk[0], ".id", false);
    job[0] = do_test_id(blk[0], "#id", false);

    /* This one is valid */
    job[0] = do_test_id(blk[0], "id0", true);

    /* We cannot have two jobs in the same BDS */
    do_test_id(blk[0], "id1", false);

    /* Duplicate job IDs are not allowed */
    job[1] = do_test_id(blk[1], "id0", false);

    /* But once job[0] finishes we can reuse its ID */
    block_job_early_fail(job[0]);
    job[1] = do_test_id(blk[1], "id0", true);

    /* No job ID specified, defaults to the backend name ('drive1') */
    block_job_early_fail(job[1]);
    job[1] = do_test_id(blk[1], NULL, true);

    /* Duplicate job ID */
    job[2] = do_test_id(blk[2], "drive1", false);

    /* The ID of job[2] would default to 'drive2' but it is already in use */
    job[0] = do_test_id(blk[0], "drive2", true);
    job[2] = do_test_id(blk[2], NULL, false);

    /* This one is valid */
    job[2] = do_test_id(blk[2], "id_2", true);

    block_job_early_fail(job[0]);
    block_job_early_fail(job[1]);
    block_job_early_fail(job[2]);

    destroy_blk(blk[0]);
    destroy_blk(blk[1]);
    destroy_blk(blk[2]);
}

typedef struct CancelJob {
    BlockJob common;
    BlockBackend *blk;
    bool should_converge;
    bool should_complete;
    bool completed;
} CancelJob;

static void cancel_job_completed(BlockJob *job, void *opaque)
{
    CancelJob *s = opaque;
    s->completed = true;
    block_job_completed(job, 0);
}

static void cancel_job_complete(BlockJob *job, Error **errp)
{
    CancelJob *s = container_of(job, CancelJob, common);
    s->should_complete = true;
}

static void coroutine_fn cancel_job_start(void *opaque)
{
    CancelJob *s = opaque;

    while (!s->should_complete) {
        if (block_job_is_cancelled(&s->common)) {
            goto defer;
        }

        if (!s->common.ready && s->should_converge) {
            block_job_event_ready(&s->common);
        }

        block_job_sleep_ns(&s->common, 100000);
    }

 defer:
    block_job_defer_to_main_loop(&s->common, cancel_job_completed, s);
}

static const BlockJobDriver test_cancel_driver = {
    .job_driver = {
        .instance_size = sizeof(CancelJob),
        .free          = block_job_free,
    },
    .start         = cancel_job_start,
    .complete      = cancel_job_complete,
};

static CancelJob *create_common(BlockJob **pjob)
{
    BlockBackend *blk;
    BlockJob *job;
    CancelJob *s;

    blk = create_blk(NULL);
    job = mk_job(blk, "Steve", &test_cancel_driver, true,
                 BLOCK_JOB_MANUAL_FINALIZE | BLOCK_JOB_MANUAL_DISMISS);
    job_ref(&job->job);
    assert(job->job.status == JOB_STATUS_CREATED);
    s = container_of(job, CancelJob, common);
    s->blk = blk;

    *pjob = job;
    return s;
}

static void cancel_common(CancelJob *s)
{
    BlockJob *job = &s->common;
    BlockBackend *blk = s->blk;
    JobStatus sts = job->job.status;

    block_job_cancel_sync(job);
    if (sts != JOB_STATUS_CREATED && sts != JOB_STATUS_CONCLUDED) {
        BlockJob *dummy = job;
        block_job_dismiss(&dummy, &error_abort);
    }
    assert(job->job.status == JOB_STATUS_NULL);
    job_unref(&job->job);
    destroy_blk(blk);
}

static void test_cancel_created(void)
{
    BlockJob *job;
    CancelJob *s;

    s = create_common(&job);
    cancel_common(s);
}

static void test_cancel_running(void)
{
    BlockJob *job;
    CancelJob *s;

    s = create_common(&job);

    block_job_start(job);
    assert(job->job.status == JOB_STATUS_RUNNING);

    cancel_common(s);
}

static void test_cancel_paused(void)
{
    BlockJob *job;
    CancelJob *s;

    s = create_common(&job);

    block_job_start(job);
    assert(job->job.status == JOB_STATUS_RUNNING);

    block_job_user_pause(job, &error_abort);
    block_job_enter(job);
    assert(job->job.status == JOB_STATUS_PAUSED);

    cancel_common(s);
}

static void test_cancel_ready(void)
{
    BlockJob *job;
    CancelJob *s;

    s = create_common(&job);

    block_job_start(job);
    assert(job->job.status == JOB_STATUS_RUNNING);

    s->should_converge = true;
    block_job_enter(job);
    assert(job->job.status == JOB_STATUS_READY);

    cancel_common(s);
}

static void test_cancel_standby(void)
{
    BlockJob *job;
    CancelJob *s;

    s = create_common(&job);

    block_job_start(job);
    assert(job->job.status == JOB_STATUS_RUNNING);

    s->should_converge = true;
    block_job_enter(job);
    assert(job->job.status == JOB_STATUS_READY);

    block_job_user_pause(job, &error_abort);
    block_job_enter(job);
    assert(job->job.status == JOB_STATUS_STANDBY);

    cancel_common(s);
}

static void test_cancel_pending(void)
{
    BlockJob *job;
    CancelJob *s;

    s = create_common(&job);

    block_job_start(job);
    assert(job->job.status == JOB_STATUS_RUNNING);

    s->should_converge = true;
    block_job_enter(job);
    assert(job->job.status == JOB_STATUS_READY);

    block_job_complete(job, &error_abort);
    block_job_enter(job);
    while (!s->completed) {
        aio_poll(qemu_get_aio_context(), true);
    }
    assert(job->job.status == JOB_STATUS_PENDING);

    cancel_common(s);
}

static void test_cancel_concluded(void)
{
    BlockJob *job;
    CancelJob *s;

    s = create_common(&job);

    block_job_start(job);
    assert(job->job.status == JOB_STATUS_RUNNING);

    s->should_converge = true;
    block_job_enter(job);
    assert(job->job.status == JOB_STATUS_READY);

    block_job_complete(job, &error_abort);
    block_job_enter(job);
    while (!s->completed) {
        aio_poll(qemu_get_aio_context(), true);
    }
    assert(job->job.status == JOB_STATUS_PENDING);

    block_job_finalize(job, &error_abort);
    assert(job->job.status == JOB_STATUS_CONCLUDED);

    cancel_common(s);
}

int main(int argc, char **argv)
{
    qemu_init_main_loop(&error_abort);
    bdrv_init();

    g_test_init(&argc, &argv, NULL);
    g_test_add_func("/blockjob/ids", test_job_ids);
    g_test_add_func("/blockjob/cancel/created", test_cancel_created);
    g_test_add_func("/blockjob/cancel/running", test_cancel_running);
    g_test_add_func("/blockjob/cancel/paused", test_cancel_paused);
    g_test_add_func("/blockjob/cancel/ready", test_cancel_ready);
    g_test_add_func("/blockjob/cancel/standby", test_cancel_standby);
    g_test_add_func("/blockjob/cancel/pending", test_cancel_pending);
    g_test_add_func("/blockjob/cancel/concluded", test_cancel_concluded);
    return g_test_run();
}
Commit	Line	Data
9ef8112a AG	1	/*
	2	* Blockjob tests
	3	*
	4	* Copyright Igalia, S.L. 2016
	5	*
	6	* Authors:
	7	* Alberto Garcia <berto@igalia.com>
	8	*
	9	* This work is licensed under the terms of the GNU LGPL, version 2 or later.
	10	* See the COPYING.LIB file in the top-level directory.
	11	*/
	12
	13	#include "qemu/osdep.h"
	14	#include "qapi/error.h"
	15	#include "qemu/main-loop.h"
c87621ea	16	#include "block/blockjob_int.h"
9ef8112a AG	17	#include "sysemu/block-backend.h"
	18
	19	static const BlockJobDriver test_block_job_driver = {
33e9e9bd KW	20	.job_driver = {
33e9e9bd KW	21	.instance_size = sizeof(BlockJob),
80fa2c75	22	.free = block_job_free,
33e9e9bd	23	},
9ef8112a AG	24	};
	25
	26	static void block_job_cb(void *opaque, int ret)
	27	{
	28	}
	29
fb367e03 JS	30	static BlockJob mk_job(BlockBackend blk, const char *id,
	31	const BlockJobDriver *drv, bool should_succeed,
	32	int flags)
9ef8112a AG	33	{
	34	BlockJob *job;
	35	Error *errp = NULL;
	36
fb367e03 JS	37	job = block_job_create(id, drv, NULL, blk_bs(blk),
fb367e03 JS	38	0, BLK_PERM_ALL, 0, flags, block_job_cb,
c6cc12bf	39	NULL, &errp);
9ef8112a AG	40	if (should_succeed) {
	41	g_assert_null(errp);
	42	g_assert_nonnull(job);
	43	if (id) {
33e9e9bd	44	g_assert_cmpstr(job->job.id, ==, id);
9ef8112a	45	} else {
33e9e9bd	46	g_assert_cmpstr(job->job.id, ==, blk_name(blk));
9ef8112a AG	47	}
	48	} else {
	49	g_assert_nonnull(errp);
	50	g_assert_null(job);
	51	error_free(errp);
	52	}
	53
	54	return job;
	55	}
	56
fb367e03 JS	57	static BlockJob do_test_id(BlockBackend blk, const char *id,
	58	bool should_succeed)
	59	{
	60	return mk_job(blk, id, &test_block_job_driver,
	61	should_succeed, BLOCK_JOB_DEFAULT);
	62	}
	63
9ef8112a AG	64	/* This creates a BlockBackend (optionally with a name) with a
	65	* BlockDriverState inserted. */
	66	static BlockBackend create_blk(const char name)
	67	{
2807c0cd	68	/* No I/O is performed on this device */
6d0eb64d	69	BlockBackend *blk = blk_new(0, BLK_PERM_ALL);
d185cf0e KW	70	BlockDriverState *bs;
	71
	72	bs = bdrv_open("null-co://", NULL, NULL, 0, &error_abort);
	73	g_assert_nonnull(bs);
9ef8112a	74
d7086422	75	blk_insert_bs(blk, bs, &error_abort);
9ef8112a AG	76	bdrv_unref(bs);
	77
	78	if (name) {
	79	Error *errp = NULL;
	80	monitor_add_blk(blk, name, &errp);
	81	g_assert_null(errp);
	82	}
	83
	84	return blk;
	85	}
	86
	87	/* This destroys the backend */
	88	static void destroy_blk(BlockBackend *blk)
	89	{
	90	if (blk_name(blk)[0] != '\0') {
	91	monitor_remove_blk(blk);
	92	}
	93
	94	blk_remove_bs(blk);
	95	blk_unref(blk);
	96	}
	97
	98	static void test_job_ids(void)
	99	{
	100	BlockBackend *blk[3];
	101	BlockJob *job[3];
	102
	103	blk[0] = create_blk(NULL);
	104	blk[1] = create_blk("drive1");
	105	blk[2] = create_blk("drive2");
	106
	107	/* No job ID provided and the block backend has no name */
	108	job[0] = do_test_id(blk[0], NULL, false);
	109
	110	/* These are all invalid job IDs */
	111	job[0] = do_test_id(blk[0], "0id", false);
	112	job[0] = do_test_id(blk[0], "", false);
	113	job[0] = do_test_id(blk[0], " ", false);
	114	job[0] = do_test_id(blk[0], "123", false);
	115	job[0] = do_test_id(blk[0], "_id", false);
	116	job[0] = do_test_id(blk[0], "-id", false);
	117	job[0] = do_test_id(blk[0], ".id", false);
	118	job[0] = do_test_id(blk[0], "#id", false);
	119
	120	/* This one is valid */
	121	job[0] = do_test_id(blk[0], "id0", true);
	122
	123	/* We cannot have two jobs in the same BDS */
	124	do_test_id(blk[0], "id1", false);
	125
	126	/* Duplicate job IDs are not allowed */
	127	job[1] = do_test_id(blk[1], "id0", false);
	128
	129	/* But once job[0] finishes we can reuse its ID */
05b0d8e3	130	block_job_early_fail(job[0]);
9ef8112a AG	131	job[1] = do_test_id(blk[1], "id0", true);
	132
	133	/* No job ID specified, defaults to the backend name ('drive1') */
05b0d8e3	134	block_job_early_fail(job[1]);
9ef8112a AG	135	job[1] = do_test_id(blk[1], NULL, true);
	136
	137	/* Duplicate job ID */
	138	job[2] = do_test_id(blk[2], "drive1", false);
	139
	140	/* The ID of job[2] would default to 'drive2' but it is already in use */
	141	job[0] = do_test_id(blk[0], "drive2", true);
	142	job[2] = do_test_id(blk[2], NULL, false);
	143
	144	/* This one is valid */
	145	job[2] = do_test_id(blk[2], "id_2", true);
	146
05b0d8e3 PB	147	block_job_early_fail(job[0]);
	148	block_job_early_fail(job[1]);
	149	block_job_early_fail(job[2]);
9ef8112a AG	150
	151	destroy_blk(blk[0]);
	152	destroy_blk(blk[1]);
	153	destroy_blk(blk[2]);
	154	}
	155
fb367e03 JS	156	typedef struct CancelJob {
	157	BlockJob common;
	158	BlockBackend *blk;
	159	bool should_converge;
	160	bool should_complete;
	161	bool completed;
	162	} CancelJob;
	163
	164	static void cancel_job_completed(BlockJob job, void opaque)
	165	{
	166	CancelJob *s = opaque;
	167	s->completed = true;
	168	block_job_completed(job, 0);
	169	}
	170
	171	static void cancel_job_complete(BlockJob job, Error *errp)
	172	{
	173	CancelJob *s = container_of(job, CancelJob, common);
	174	s->should_complete = true;
	175	}
	176
	177	static void coroutine_fn cancel_job_start(void *opaque)
	178	{
	179	CancelJob *s = opaque;
	180
	181	while (!s->should_complete) {
	182	if (block_job_is_cancelled(&s->common)) {
	183	goto defer;
	184	}
	185
	186	if (!s->common.ready && s->should_converge) {
	187	block_job_event_ready(&s->common);
	188	}
	189
	190	block_job_sleep_ns(&s->common, 100000);
	191	}
	192
	193	defer:
	194	block_job_defer_to_main_loop(&s->common, cancel_job_completed, s);
	195	}
	196
	197	static const BlockJobDriver test_cancel_driver = {
33e9e9bd KW	198	.job_driver = {
33e9e9bd KW	199	.instance_size = sizeof(CancelJob),
80fa2c75	200	.free = block_job_free,
33e9e9bd	201	},
fb367e03 JS	202	.start = cancel_job_start,
	203	.complete = cancel_job_complete,
	204	};
	205
	206	static CancelJob create_common(BlockJob *pjob)
	207	{
	208	BlockBackend *blk;
	209	BlockJob *job;
	210	CancelJob *s;
	211
	212	blk = create_blk(NULL);
	213	job = mk_job(blk, "Steve", &test_cancel_driver, true,
	214	BLOCK_JOB_MANUAL_FINALIZE \| BLOCK_JOB_MANUAL_DISMISS);
80fa2c75	215	job_ref(&job->job);
a50c2ab8	216	assert(job->job.status == JOB_STATUS_CREATED);
fb367e03 JS	217	s = container_of(job, CancelJob, common);
	218	s->blk = blk;
	219
	220	*pjob = job;
	221	return s;
	222	}
	223
	224	static void cancel_common(CancelJob *s)
	225	{
	226	BlockJob *job = &s->common;
	227	BlockBackend *blk = s->blk;
a50c2ab8	228	JobStatus sts = job->job.status;
fb367e03 JS	229
fb367e03 JS	230	block_job_cancel_sync(job);
a50c2ab8	231	if (sts != JOB_STATUS_CREATED && sts != JOB_STATUS_CONCLUDED) {
fb367e03 JS	232	BlockJob *dummy = job;
	233	block_job_dismiss(&dummy, &error_abort);
	234	}
a50c2ab8	235	assert(job->job.status == JOB_STATUS_NULL);
80fa2c75	236	job_unref(&job->job);
fb367e03 JS	237	destroy_blk(blk);
	238	}
	239
	240	static void test_cancel_created(void)
	241	{
	242	BlockJob *job;
	243	CancelJob *s;
	244
	245	s = create_common(&job);
	246	cancel_common(s);
	247	}
	248
	249	static void test_cancel_running(void)
	250	{
	251	BlockJob *job;
	252	CancelJob *s;
	253
	254	s = create_common(&job);
	255
	256	block_job_start(job);
a50c2ab8	257	assert(job->job.status == JOB_STATUS_RUNNING);
fb367e03 JS	258
	259	cancel_common(s);
	260	}
	261
	262	static void test_cancel_paused(void)
	263	{
	264	BlockJob *job;
	265	CancelJob *s;
	266
	267	s = create_common(&job);
	268
	269	block_job_start(job);
a50c2ab8	270	assert(job->job.status == JOB_STATUS_RUNNING);
fb367e03 JS	271
	272	block_job_user_pause(job, &error_abort);
	273	block_job_enter(job);
a50c2ab8	274	assert(job->job.status == JOB_STATUS_PAUSED);
fb367e03 JS	275
	276	cancel_common(s);
	277	}
	278
	279	static void test_cancel_ready(void)
	280	{
	281	BlockJob *job;
	282	CancelJob *s;
	283
	284	s = create_common(&job);
	285
	286	block_job_start(job);
a50c2ab8	287	assert(job->job.status == JOB_STATUS_RUNNING);
fb367e03 JS	288
	289	s->should_converge = true;
	290	block_job_enter(job);
a50c2ab8	291	assert(job->job.status == JOB_STATUS_READY);
fb367e03 JS	292
	293	cancel_common(s);
	294	}
	295
	296	static void test_cancel_standby(void)
	297	{
	298	BlockJob *job;
	299	CancelJob *s;
	300
	301	s = create_common(&job);
	302
	303	block_job_start(job);
a50c2ab8	304	assert(job->job.status == JOB_STATUS_RUNNING);
fb367e03 JS	305
	306	s->should_converge = true;
	307	block_job_enter(job);
a50c2ab8	308	assert(job->job.status == JOB_STATUS_READY);
fb367e03 JS	309
	310	block_job_user_pause(job, &error_abort);
	311	block_job_enter(job);
a50c2ab8	312	assert(job->job.status == JOB_STATUS_STANDBY);
fb367e03 JS	313
	314	cancel_common(s);
	315	}
	316
	317	static void test_cancel_pending(void)
	318	{
	319	BlockJob *job;
	320	CancelJob *s;
	321
	322	s = create_common(&job);
	323
	324	block_job_start(job);
a50c2ab8	325	assert(job->job.status == JOB_STATUS_RUNNING);
fb367e03 JS	326
	327	s->should_converge = true;
	328	block_job_enter(job);
a50c2ab8	329	assert(job->job.status == JOB_STATUS_READY);
fb367e03 JS	330
	331	block_job_complete(job, &error_abort);
	332	block_job_enter(job);
	333	while (!s->completed) {
	334	aio_poll(qemu_get_aio_context(), true);
	335	}
a50c2ab8	336	assert(job->job.status == JOB_STATUS_PENDING);
fb367e03 JS	337
	338	cancel_common(s);
	339	}
	340
	341	static void test_cancel_concluded(void)
	342	{
	343	BlockJob *job;
	344	CancelJob *s;
	345
	346	s = create_common(&job);
	347
	348	block_job_start(job);
a50c2ab8	349	assert(job->job.status == JOB_STATUS_RUNNING);
fb367e03 JS	350
	351	s->should_converge = true;
	352	block_job_enter(job);
a50c2ab8	353	assert(job->job.status == JOB_STATUS_READY);
fb367e03 JS	354
	355	block_job_complete(job, &error_abort);
	356	block_job_enter(job);
	357	while (!s->completed) {
	358	aio_poll(qemu_get_aio_context(), true);
	359	}
a50c2ab8	360	assert(job->job.status == JOB_STATUS_PENDING);
fb367e03 JS	361
fb367e03 JS	362	block_job_finalize(job, &error_abort);
a50c2ab8	363	assert(job->job.status == JOB_STATUS_CONCLUDED);
fb367e03 JS	364
	365	cancel_common(s);
	366	}
	367
9ef8112a AG	368	int main(int argc, char **argv)
	369	{
	370	qemu_init_main_loop(&error_abort);
d185cf0e	371	bdrv_init();
9ef8112a AG	372
	373	g_test_init(&argc, &argv, NULL);
	374	g_test_add_func("/blockjob/ids", test_job_ids);
fb367e03 JS	375	g_test_add_func("/blockjob/cancel/created", test_cancel_created);
	376	g_test_add_func("/blockjob/cancel/running", test_cancel_running);
	377	g_test_add_func("/blockjob/cancel/paused", test_cancel_paused);
	378	g_test_add_func("/blockjob/cancel/ready", test_cancel_ready);
	379	g_test_add_func("/blockjob/cancel/standby", test_cancel_standby);
	380	g_test_add_func("/blockjob/cancel/pending", test_cancel_pending);
	381	g_test_add_func("/blockjob/cancel/concluded", test_cancel_concluded);
9ef8112a AG	382	return g_test_run();
9ef8112a AG	383	}