diff options
Diffstat (limited to 'scripts/qapi-event.py')
| -rw-r--r-- | scripts/qapi-event.py | 122 |
1 files changed, 58 insertions, 64 deletions
diff --git a/scripts/qapi-event.py b/scripts/qapi-event.py index d19acda7d3..5873a05888 100644 --- a/scripts/qapi-event.py +++ b/scripts/qapi-event.py @@ -13,12 +13,13 @@ from qapi import * -def _generate_event_api_name(event_name, params): - api_name = "void qapi_event_send_%s(" % c_name(event_name).lower(); + +def gen_event_send_proto(name, arg_type): + api_name = "void qapi_event_send_%s(" % c_name(name).lower() l = len(api_name) - if params: - for m in params.members: + if arg_type: + for m in arg_type.members: if m.optional: api_name += "bool has_%s,\n" % c_name(m.name) api_name += "".ljust(l) @@ -28,53 +29,49 @@ def _generate_event_api_name(event_name, params): api_name += "".ljust(l) api_name += "Error **errp)" - return api_name; - + return api_name -# Following are the core functions that generate C APIs to emit event. -def generate_event_declaration(api_name): +def gen_event_send_decl(name, arg_type): return mcgen(''' -%(api_name)s; +%(proto)s; ''', - api_name = api_name) + proto=gen_event_send_proto(name, arg_type)) + -def generate_event_implement(api_name, event_name, params): - # step 1: declare any variables - ret = mcgen(""" +def gen_event_send(name, arg_type): + ret = mcgen(''' -%(api_name)s +%(proto)s { QDict *qmp; Error *local_err = NULL; QMPEventFuncEmit emit; -""", - api_name = api_name) +''', + proto=gen_event_send_proto(name, arg_type)) - if params and params.members: - ret += mcgen(""" + if arg_type and arg_type.members: + ret += mcgen(''' QmpOutputVisitor *qov; Visitor *v; QObject *obj; -""") +''') - # step 2: check emit function, create a dict - ret += mcgen(""" + ret += mcgen(''' emit = qmp_event_get_func_emit(); if (!emit) { return; } - qmp = qmp_event_build_dict("%(event_name)s"); + qmp = qmp_event_build_dict("%(name)s"); -""", - event_name = event_name) +''', + name=name) - # step 3: visit the params if params != None - if params and params.members: - ret += mcgen(""" + if arg_type and arg_type.members: + ret += mcgen(''' qov = qmp_output_visitor_new(); g_assert(qov); @@ -82,45 +79,46 @@ def generate_event_implement(api_name, event_name, params): g_assert(v); /* Fake visit, as if all members are under a structure */ - visit_start_struct(v, NULL, "", "%(event_name)s", 0, &local_err); + visit_start_struct(v, NULL, "", "%(name)s", 0, &local_err); if (local_err) { goto clean; } -""", - event_name = event_name) +''', + name=name) - for memb in params.members: + for memb in arg_type.members: if memb.optional: - ret += mcgen(""" - if (has_%(var)s) { -""", - var=c_name(memb.name)) + ret += mcgen(''' + if (has_%(c_name)s) { +''', + c_name=c_name(memb.name)) push_indent() + # Ugly: need to cast away the const if memb.type.name == "str": - var_type = "(char **)" + cast = '(char **)' else: - var_type = "" + cast = '' - ret += mcgen(""" - visit_type_%(type)s(v, %(var_type)s&%(var)s, "%(name)s", &local_err); + ret += mcgen(''' + visit_type_%(c_type)s(v, %(cast)s&%(c_name)s, "%(name)s", &local_err); if (local_err) { goto clean; } -""", - var_type = var_type, - var=c_name(memb.name), - type=memb.type.c_name(), +''', + cast=cast, + c_name=c_name(memb.name), + c_type=memb.type.c_name(), name=memb.name) if memb.optional: pop_indent() - ret += mcgen(""" + ret += mcgen(''' } -""") +''') - ret += mcgen(""" + ret += mcgen(''' visit_end_struct(v, &local_err); if (local_err) { @@ -131,27 +129,24 @@ def generate_event_implement(api_name, event_name, params): g_assert(obj != NULL); qdict_put_obj(qmp, "data", obj); -""") +''') - # step 4: call qmp event api - ret += mcgen(""" - emit(%(event_enum_value)s, qmp, &local_err); + ret += mcgen(''' + emit(%(c_enum)s, qmp, &local_err); -""", - event_enum_value = c_enum_const(event_enum_name, event_name)) +''', + c_enum=c_enum_const(event_enum_name, name)) - # step 5: clean up - if params and params.members: - ret += mcgen(""" + if arg_type and arg_type.members: + ret += mcgen(''' clean: qmp_output_visitor_cleanup(qov); -""") - ret += mcgen(""" +''') + ret += mcgen(''' error_propagate(errp, local_err); QDECREF(qmp); } -""") - +''') return ret @@ -167,14 +162,13 @@ class QAPISchemaGenEventVisitor(QAPISchemaVisitor): self._event_names = [] def visit_end(self): - self.decl += generate_enum(event_enum_name, self._event_names) - self.defn += generate_enum_lookup(event_enum_name, self._event_names) + self.decl += gen_enum(event_enum_name, self._event_names) + self.defn += gen_enum_lookup(event_enum_name, self._event_names) self._event_names = None def visit_event(self, name, info, arg_type): - api_name = _generate_event_api_name(name, arg_type) - self.decl += generate_event_declaration(api_name) - self.defn += generate_event_implement(api_name, name, arg_type) + self.decl += gen_event_send_decl(name, arg_type) + self.defn += gen_event_send(name, arg_type) self._event_names.append(name) |