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qapi: Implement deprecated-output=hide for QMP event data

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This policy suppresses deprecated bits in output, and thus permits
"testing the future".  Implement it for QMP event data: suppress
deprecated members.

No QMP event data is deprecated right now.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210318155519.1224118-6-armbru@redhat.com>
This commit is contained in:
Markus Armbruster 2021-03-18 16:55:13 +01:00
parent 278fc2f7d3
commit a291a38fa1
4 changed files with 32 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

7
scripts/qapi/events.py
View file

@ -126,7 +126,7 @@ def gen_event_send(name: str,
if have_args: if have_args:
assert arg_type is not None assert arg_type is not None
ret += mcgen(''' ret += mcgen('''
v = qobject_output_visitor_new(&obj); v = qobject_output_visitor_new_qmp(&obj);
''') ''')
if not arg_type.is_implicit(): if not arg_type.is_implicit():
ret += mcgen(''' ret += mcgen('''
@ -145,7 +145,11 @@ def gen_event_send(name: str,
ret += mcgen(''' ret += mcgen('''
visit_complete(v, &obj); visit_complete(v, &obj);
if (qdict_size(qobject_to(QDict, obj))) {
qdict_put_obj(qmp, "data", obj); qdict_put_obj(qmp, "data", obj);
} else {
qobject_unref(obj);
}
''') ''')
ret += mcgen(''' ret += mcgen('''
@ -188,7 +192,6 @@ class QAPISchemaGenEventVisitor(QAPISchemaModularCVisitor):
#include "qapi/compat-policy.h" #include "qapi/compat-policy.h"
#include "qapi/error.h" #include "qapi/error.h"
#include "qapi/qmp/qdict.h" #include "qapi/qmp/qdict.h"
#include "qapi/qobject-output-visitor.h"
#include "qapi/qmp-event.h" #include "qapi/qmp-event.h"
''', ''',

3
tests/qapi-schema/qapi-schema-test.json
View file

@ -324,5 +324,8 @@
'features': [ { 'name': 'feature1', 'if': [ 'defined(TEST_IF_COND_1)', 'features': [ { 'name': 'feature1', 'if': [ 'defined(TEST_IF_COND_1)',
'defined(TEST_IF_COND_2)'] } ] } 'defined(TEST_IF_COND_2)'] } ] }
{ 'event': 'TEST-EVENT-FEATURES0',
'data': 'FeatureStruct1' }
{ 'event': 'TEST-EVENT-FEATURES1', { 'event': 'TEST-EVENT-FEATURES1',
'features': [ 'deprecated' ] } 'features': [ 'deprecated' ] }

2
tests/qapi-schema/qapi-schema-test.out
View file

@ -440,6 +440,8 @@ command test-command-cond-features3 None -> None
gen=True success_response=True boxed=False oob=False preconfig=False gen=True success_response=True boxed=False oob=False preconfig=False
feature feature1 feature feature1
if ['defined(TEST_IF_COND_1)', 'defined(TEST_IF_COND_2)'] if ['defined(TEST_IF_COND_1)', 'defined(TEST_IF_COND_2)']
event TEST-EVENT-FEATURES0 FeatureStruct1
boxed=False
event TEST-EVENT-FEATURES1 None event TEST-EVENT-FEATURES1 None
boxed=False boxed=False
feature deprecated feature deprecated

21
tests/unit/test-qmp-event.c
View file

@ -159,6 +159,26 @@ static void test_event_deprecated(TestEventData *data, const void *unused)
qobject_unref(data->expect); qobject_unref(data->expect);
} }
static void test_event_deprecated_data(TestEventData *data, const void *unused)
{
memset(&compat_policy, 0, sizeof(compat_policy));
data->expect = qdict_from_jsonf_nofail("{ 'event': 'TEST-EVENT-FEATURES0',"
" 'data': { 'foo': 42 } }");
qapi_event_send_test_event_features0(42);
g_assert(data->emitted);
qobject_unref(data->expect);
compat_policy.has_deprecated_output = true;
compat_policy.deprecated_output = COMPAT_POLICY_OUTPUT_HIDE;
data->expect = qdict_from_jsonf_nofail("{ 'event': 'TEST-EVENT-FEATURES0' }");
qapi_event_send_test_event_features0(42);
g_assert(data->emitted);
qobject_unref(data->expect);
}
int main(int argc, char **argv) int main(int argc, char **argv)
{ {
g_test_init(&argc, &argv, NULL); g_test_init(&argc, &argv, NULL);
@ -168,6 +188,7 @@ int main(int argc, char **argv)
event_test_add("/event/event_c", test_event_c); event_test_add("/event/event_c", test_event_c);
event_test_add("/event/event_d", test_event_d); event_test_add("/event/event_d", test_event_d);
event_test_add("/event/deprecated", test_event_deprecated); event_test_add("/event/deprecated", test_event_deprecated);
event_test_add("/event/deprecated_data", test_event_deprecated_data);
g_test_run(); g_test_run();
return 0; return 0;