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Re: [Qemu-devel] [PATCH for-3.0 4/9] tests: introduce migrate_postcopy_*
From: |
Dr. David Alan Gilbert |
Subject: |
Re: [Qemu-devel] [PATCH for-3.0 4/9] tests: introduce migrate_postcopy_* helpers |
Date: |
Thu, 5 Jul 2018 10:59:45 +0100 |
User-agent: |
Mutt/1.10.0 (2018-05-17) |
* Peter Xu (address@hidden) wrote:
> Separate the old postcopy UNIX socket test into three steps, provide a
> helper for each step. With these helpers, we can do more compliated
> tests like postcopy recovery, while keep the codes shared.
>
> Signed-off-by: Peter Xu <address@hidden>
> ---
> tests/migration-test.c | 38 +++++++++++++++++++++++++++-----------
> 1 file changed, 27 insertions(+), 11 deletions(-)
>
> diff --git a/tests/migration-test.c b/tests/migration-test.c
> index 3a85446f95..2155869b96 100644
> --- a/tests/migration-test.c
> +++ b/tests/migration-test.c
> @@ -351,13 +351,19 @@ static void migrate(QTestState *who, const char *uri)
> qobject_unref(rsp);
> }
>
> -static void migrate_start_postcopy(QTestState *who)
> +static void migrate_postcopy_start(QTestState *from, QTestState *to)
> {
> QDict *rsp;
>
> - rsp = wait_command(who, "{ 'execute': 'migrate-start-postcopy' }");
> + rsp = wait_command(from, "{ 'execute': 'migrate-start-postcopy' }");
> g_assert(qdict_haskey(rsp, "return"));
> qobject_unref(rsp);
> +
> + if (!got_stop) {
> + qtest_qmp_eventwait(from, "STOP");
> + }
> +
> + qtest_qmp_eventwait(to, "RESUME");
> }
>
> static void test_migrate_start(QTestState **from, QTestState **to,
> @@ -505,7 +511,8 @@ static void test_deprecated(void)
> qtest_quit(from);
> }
>
> -static void test_postcopy(void)
> +static void migrate_postcopy_prepare(QTestState **from_ptr,
> + QTestState **to_ptr)
> {
> char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs);
> QTestState *from, *to;
> @@ -527,28 +534,37 @@ static void test_postcopy(void)
> wait_for_serial("src_serial");
>
> migrate(from, uri);
> + g_free(uri);
>
> wait_for_migration_pass(from);
>
> - migrate_start_postcopy(from);
> -
> - if (!got_stop) {
> - qtest_qmp_eventwait(from, "STOP");
> - }
> + *from_ptr = from;
> + *to_ptr = to;
> +}
>
> - qtest_qmp_eventwait(to, "RESUME");
> +static void migrate_postcopy_complete(QTestState *from, QTestState *to)
> +{
> + wait_for_migration_complete(from);
>
> + /* Make sure we get at least one "B" on destination */
> wait_for_serial("dest_serial");
> - wait_for_migration_complete(from);
That change is OK, but it shouldn't be necessary with postcopy; we
should be seeing B's before the migration completes.
It's OK however, so:
Reviewed-by: Dr. David Alan Gilbert <address@hidden>
> if (uffd_feature_thread_id) {
> read_blocktime(to);
> }
> - g_free(uri);
>
> test_migrate_end(from, to, true);
> }
>
> +static void test_postcopy(void)
> +{
> + QTestState *from, *to;
> +
> + migrate_postcopy_prepare(&from, &to);
> + migrate_postcopy_start(from, to);
> + migrate_postcopy_complete(from, to);
> +}
> +
> static void test_baddest(void)
> {
> QTestState *from, *to;
> --
> 2.17.1
>
--
Dr. David Alan Gilbert / address@hidden / Manchester, UK