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migration-test: Add a test for fd protocol

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Signed-off-by: Yury Kotov <yury-kotov@yandex-team.ru>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Yury Kotov 2019-05-28 12:16:33 +03:00 • committed by Juan Quintela
parent 61053d4826
commit 24d5588c86
3 changed files with 227 additions and 5 deletions
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101
tests/migration-test.c
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@ -174,6 +174,21 @@ static void stop_cb(void *opaque, const char *name, QDict *data)
}
}
/*
* Events can get in the way of responses we are actually waiting for.
*/
GCC_FMT_ATTR(3, 4)
static QDict *wait_command_fd(QTestState *who, int fd, const char *command, ...)
{
va_list ap;
va_start(ap, command);
qtest_qmp_vsend_fds(who, &fd, 1, command, ap);
va_end(ap);
return qtest_qmp_receive_success(who, stop_cb, NULL);
}
/*
* Events can get in the way of responses we are actually waiting for.
*/
@ -480,6 +495,7 @@ static void migrate(QTestState *who, const char *uri, const char *fmt, ...)
qdict_put_str(args, "uri", uri);
rsp = qmp("{ 'execute': 'migrate', 'arguments': %p}", args);
g_assert(qdict_haskey(rsp, "return"));
qobject_unref(rsp);
}
@ -1027,6 +1043,90 @@ static void test_precopy_tcp(void)
g_free(uri);
}
static void test_migrate_fd_proto(void)
{
QTestState *from, *to;
int ret;
int pair[2];
QDict *rsp;
const char *error_desc;
if (test_migrate_start(&from, &to, "defer", false, false)) {
return;
}
/*
* We want to pick a speed slow enough that the test completes
* quickly, but that it doesn't complete precopy even on a slow
* machine, so also set the downtime.
*/
/* 1 ms should make it not converge */
migrate_set_parameter(from, "downtime-limit", 1);
/* 1GB/s */
migrate_set_parameter(from, "max-bandwidth", 1000000000);
/* Wait for the first serial output from the source */
wait_for_serial("src_serial");
/* Create two connected sockets for migration */
ret = socketpair(PF_LOCAL, SOCK_STREAM, 0, pair);
g_assert_cmpint(ret, ==, 0);
/* Send the 1st socket to the target */
rsp = wait_command_fd(to, pair[0],
"{ 'execute': 'getfd',"
" 'arguments': { 'fdname': 'fd-mig' }}");
qobject_unref(rsp);
close(pair[0]);
/* Start incoming migration from the 1st socket */
rsp = wait_command(to, "{ 'execute': 'migrate-incoming',"
" 'arguments': { 'uri': 'fd:fd-mig' }}");
qobject_unref(rsp);
/* Send the 2nd socket to the target */
rsp = wait_command_fd(from, pair[1],
"{ 'execute': 'getfd',"
" 'arguments': { 'fdname': 'fd-mig' }}");
qobject_unref(rsp);
close(pair[1]);
/* Start migration to the 2nd socket*/
migrate(from, "fd:fd-mig", "{}");
wait_for_migration_pass(from);
/* 300ms should converge */
migrate_set_parameter(from, "downtime-limit", 300);
if (!got_stop) {
qtest_qmp_eventwait(from, "STOP");
}
qtest_qmp_eventwait(to, "RESUME");
/* Test closing fds */
/* We assume, that QEMU removes named fd from its list,
* so this should fail */
rsp = qtest_qmp(from, "{ 'execute': 'closefd',"
" 'arguments': { 'fdname': 'fd-mig' }}");
g_assert_true(qdict_haskey(rsp, "error"));
error_desc = qdict_get_str(qdict_get_qdict(rsp, "error"), "desc");
g_assert_cmpstr(error_desc, ==, "File descriptor named 'fd-mig' not found");
qobject_unref(rsp);
rsp = qtest_qmp(to, "{ 'execute': 'closefd',"
" 'arguments': { 'fdname': 'fd-mig' }}");
g_assert_true(qdict_haskey(rsp, "error"));
error_desc = qdict_get_str(qdict_get_qdict(rsp, "error"), "desc");
g_assert_cmpstr(error_desc, ==, "File descriptor named 'fd-mig' not found");
qobject_unref(rsp);
/* Complete migration */
wait_for_serial("dest_serial");
wait_for_migration_complete(from);
test_migrate_end(from, to, true);
}
int main(int argc, char **argv)
{
char template[] = "/tmp/migration-test-XXXXXX";
@ -1081,6 +1181,7 @@ int main(int argc, char **argv)
qtest_add_func("/migration/precopy/tcp", test_precopy_tcp);
/* qtest_add_func("/migration/ignore_shared", test_ignore_shared); */
qtest_add_func("/migration/xbzrle/unix", test_xbzrle_unix);
qtest_add_func("/migration/fd_proto", test_migrate_fd_proto);
ret = g_test_run();