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05b0d8e3b8
Outside blockjob.c, block_job_unref is only used when a block job fails to start, and block_job_ref is not used at all. The reference counting thus is pretty well hidden. Introduce a separate function to be used by block jobs; because block_job_ref and block_job_unref now become static, move them earlier in blockjob.c. Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: John Snow <jsnow@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Jeff Cody <jcody@redhat.com> Message-id: 20170508141310.8674-4-pbonzini@redhat.com Signed-off-by: Jeff Cody <jcody@redhat.com>
154 lines
3.9 KiB
C
154 lines
3.9 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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.instance_size = sizeof(BlockJob),
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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 *do_test_id(BlockBackend *blk, const char *id,
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bool should_succeed)
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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, &test_block_job_driver, blk_bs(blk),
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0, BLK_PERM_ALL, 0, BLOCK_JOB_DEFAULT, 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->id, ==, id);
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} else {
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g_assert_cmpstr(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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/* 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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block_job_early_fail(job[0]);
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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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block_job_early_fail(job[1]);
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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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block_job_early_fail(job[0]);
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block_job_early_fail(job[1]);
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block_job_early_fail(job[2]);
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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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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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return g_test_run();
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}
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