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[PULL 04/11] qapi: Implement deprecated-output=hide for QMP events
From: |
Markus Armbruster |
Subject: |
[PULL 04/11] qapi: Implement deprecated-output=hide for QMP events |
Date: |
Tue, 16 Mar 2021 18:05:44 +0100 |
This policy suppresses deprecated bits in output, and thus permits
"testing the future". Implement it for QMP events: suppress
deprecated ones.
No QMP event is deprecated right now.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210312153210.2810514-4-armbru@redhat.com>
---
tests/unit/test-qmp-event.c | 20 ++++++++++++++++++++
scripts/qapi/events.py | 12 +++++++++++-
2 files changed, 31 insertions(+), 1 deletion(-)
diff --git a/tests/unit/test-qmp-event.c b/tests/unit/test-qmp-event.c
index 7dd0053190..ab059fb5c2 100644
--- a/tests/unit/test-qmp-event.c
+++ b/tests/unit/test-qmp-event.c
@@ -14,6 +14,7 @@
#include "qemu/osdep.h"
#include "qemu-common.h"
+#include "qapi/compat-policy.h"
#include "qapi/error.h"
#include "qapi/qmp/qbool.h"
#include "qapi/qmp/qdict.h"
@@ -140,6 +141,24 @@ static void test_event_d(TestEventData *data,
qobject_unref(data->expect);
}
+static void test_event_deprecated(TestEventData *data, const void *unused)
+{
+ data->expect = qdict_from_jsonf_nofail("{ 'event': 'TEST-EVENT-FEATURES1'
}");
+
+ memset(&compat_policy, 0, sizeof(compat_policy));
+
+ qapi_event_send_test_event_features1();
+ g_assert(data->emitted);
+
+ compat_policy.has_deprecated_output = true;
+ compat_policy.deprecated_output = COMPAT_POLICY_OUTPUT_HIDE;
+ data->emitted = false;
+ qapi_event_send_test_event_features1();
+ g_assert(!data->emitted);
+
+ qobject_unref(data->expect);
+}
+
int main(int argc, char **argv)
{
g_test_init(&argc, &argv, NULL);
@@ -148,6 +167,7 @@ int main(int argc, char **argv)
event_test_add("/event/event_b", test_event_b);
event_test_add("/event/event_c", test_event_c);
event_test_add("/event/event_d", test_event_d);
+ event_test_add("/event/deprecated", test_event_deprecated);
g_test_run();
return 0;
diff --git a/scripts/qapi/events.py b/scripts/qapi/events.py
index 90d2f6156d..f6e1e76f64 100644
--- a/scripts/qapi/events.py
+++ b/scripts/qapi/events.py
@@ -79,6 +79,7 @@ def gen_param_var(typ: QAPISchemaObjectType) -> str:
def gen_event_send(name: str,
arg_type: Optional[QAPISchemaObjectType],
+ features: List[QAPISchemaFeature],
boxed: bool,
event_enum_name: str,
event_emit: str) -> str:
@@ -107,6 +108,14 @@ def gen_event_send(name: str,
if not boxed:
ret += gen_param_var(arg_type)
+ if 'deprecated' in [f.name for f in features]:
+ ret += mcgen('''
+
+ if (compat_policy.deprecated_output == COMPAT_POLICY_OUTPUT_HIDE) {
+ return;
+ }
+''')
+
ret += mcgen('''
qmp = qmp_event_build_dict("%(name)s");
@@ -176,6 +185,7 @@ def _begin_user_module(self, name: str) -> None:
#include "%(prefix)sqapi-emit-events.h"
#include "%(events)s.h"
#include "%(visit)s.h"
+#include "qapi/compat-policy.h"
#include "qapi/error.h"
#include "qapi/qmp/qdict.h"
#include "qapi/qobject-output-visitor.h"
@@ -220,7 +230,7 @@ def visit_event(self,
boxed: bool) -> None:
with ifcontext(ifcond, self._genh, self._genc):
self._genh.add(gen_event_send_decl(name, arg_type, boxed))
- self._genc.add(gen_event_send(name, arg_type, boxed,
+ self._genc.add(gen_event_send(name, arg_type, features, boxed,
self._event_enum_name,
self._event_emit_name))
# Note: we generate the enum member regardless of @ifcond, to
--
2.26.2
- [PULL 07/11] qapi: Implement deprecated-output=hide for QMP introspection, (continued)
- [PULL 07/11] qapi: Implement deprecated-output=hide for QMP introspection, Markus Armbruster, 2021/03/16
- [PULL 02/11] qemu-options: New -compat to set policy for deprecated interfaces, Markus Armbruster, 2021/03/16
- [PULL 10/11] qapi: Implement deprecated-input=reject for QMP command arguments, Markus Armbruster, 2021/03/16
- [PULL 09/11] qapi: Implement deprecated-input=reject for QMP commands, Markus Armbruster, 2021/03/16
- Re: [PULL 00/11] QOM and fdc patches patches for 2021-03-16, Eric Blake, 2021/03/16
- [PULL 00/11] QOM and fdc patches patches for 2021-03-16, Markus Armbruster, 2021/03/16
- [PULL 01/11] qemuutil: remove qemu_set_fd_handler duplicate symbol, Markus Armbruster, 2021/03/16
- [PULL 08/11] test-util-sockets: Add stub for monitor_set_cur(), Markus Armbruster, 2021/03/16
- [PULL 02/11] qemu-options: New -compat to set policy for deprecated interfaces, Markus Armbruster, 2021/03/16
- [PULL 05/11] qapi: Implement deprecated-output=hide for QMP event data, Markus Armbruster, 2021/03/16
- [PULL 04/11] qapi: Implement deprecated-output=hide for QMP events,
Markus Armbruster <=
- [PULL 07/11] qapi: Implement deprecated-output=hide for QMP introspection, Markus Armbruster, 2021/03/16
- [PULL 09/11] qapi: Implement deprecated-input=reject for QMP commands, Markus Armbruster, 2021/03/16
- [PULL 11/11] qapi: New -compat deprecated-input=crash, Markus Armbruster, 2021/03/16
- [PULL 03/11] qapi: Implement deprecated-output=hide for QMP command results, Markus Armbruster, 2021/03/16
- [PULL 06/11] monitor: Drop query-qmp-schema 'gen': false hack, Markus Armbruster, 2021/03/16
- [PULL 10/11] qapi: Implement deprecated-input=reject for QMP command arguments, Markus Armbruster, 2021/03/16
- Re: [PULL 00/11] QOM and fdc patches patches for 2021-03-16, Markus Armbruster, 2021/03/16