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authorMarkus Armbruster <armbru@redhat.com>2015-09-16 13:06:14 +0200
committerMarkus Armbruster <armbru@redhat.com>2015-09-21 09:56:48 +0200
commit05f43a960877cf941635324b2d0a74c0d0f7128e (patch)
tree977f1a3b0408a1c223a8b897d1120812d50ff795 /scripts/qapi-event.py
parent7b24626cd019ed5084c8e3370999176a1ebd44be (diff)
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qapi-event: Convert to QAPISchemaVisitor, fixing data with base
Fixes events whose data is struct with base to include the struct's base members. Test case is qapi-schema-test.json's event __org.qemu_x-command: { 'event': '__ORG.QEMU_X-EVENT', 'data': '__org.qemu_x-Struct' } { 'struct': '__org.qemu_x-Struct', 'base': '__org.qemu_x-Base', 'data': { '__org.qemu_x-member2': 'str' } } { 'struct': '__org.qemu_x-Base', 'data': { '__org.qemu_x-member1': '__org.qemu_x-Enum' } } Patch's effect on generated qapi_event_send___org_qemu_x_event(): -void qapi_event_send___org_qemu_x_event(const char *__org_qemu_x_member2, +void qapi_event_send___org_qemu_x_event(__org_qemu_x_Enum __org_qemu_x_member1, + const char *__org_qemu_x_member2, Error **errp) { QDict *qmp; @@ -224,6 +225,10 @@ void qapi_event_send___org_qemu_x_event( goto clean; } + visit_type___org_qemu_x_Enum(v, &__org_qemu_x_member1, "__org.qemu_x-member1", &local_err); + if (local_err) { + goto clean; + } visit_type_str(v, (char **)&__org_qemu_x_member2, "__org.qemu_x-member2", &local_err); if (local_err) { goto clean; Code is generated in a different order now, but that doesn't matter. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Diffstat (limited to 'scripts/qapi-event.py')
-rw-r--r--scripts/qapi-event.py91
1 files changed, 48 insertions, 43 deletions
diff --git a/scripts/qapi-event.py b/scripts/qapi-event.py
index 537da17..d19acda 100644
--- a/scripts/qapi-event.py
+++ b/scripts/qapi-event.py
@@ -2,14 +2,15 @@
# QAPI event generator
#
# Copyright (c) 2014 Wenchao Xia
+# Copyright (c) 2015 Red Hat Inc.
#
# Authors:
# Wenchao Xia <wenchaoqemu@gmail.com>
+# Markus Armbruster <armbru@redhat.com>
#
# This work is licensed under the terms of the GNU GPL, version 2.
# See the COPYING file in the top-level directory.
-from ordereddict import OrderedDict
from qapi import *
def _generate_event_api_name(event_name, params):
@@ -17,13 +18,13 @@ def _generate_event_api_name(event_name, params):
l = len(api_name)
if params:
- for argname, argentry, optional in parse_args(params):
- if optional:
- api_name += "bool has_%s,\n" % c_name(argname)
+ for m in params.members:
+ if m.optional:
+ api_name += "bool has_%s,\n" % c_name(m.name)
api_name += "".ljust(l)
- api_name += "%s %s,\n" % (c_type(argentry, is_param=True),
- c_name(argname))
+ api_name += "%s %s,\n" % (m.type.c_type(is_param=True),
+ c_name(m.name))
api_name += "".ljust(l)
api_name += "Error **errp)"
@@ -51,7 +52,7 @@ def generate_event_implement(api_name, event_name, params):
""",
api_name = api_name)
- if params:
+ if params and params.members:
ret += mcgen("""
QmpOutputVisitor *qov;
Visitor *v;
@@ -72,7 +73,7 @@ def generate_event_implement(api_name, event_name, params):
event_name = event_name)
# step 3: visit the params if params != None
- if params:
+ if params and params.members:
ret += mcgen("""
qov = qmp_output_visitor_new();
g_assert(qov);
@@ -89,15 +90,15 @@ def generate_event_implement(api_name, event_name, params):
""",
event_name = event_name)
- for argname, argentry, optional in parse_args(params):
- if optional:
+ for memb in params.members:
+ if memb.optional:
ret += mcgen("""
if (has_%(var)s) {
""",
- var = c_name(argname))
+ var=c_name(memb.name))
push_indent()
- if argentry == "str":
+ if memb.type.name == "str":
var_type = "(char **)"
else:
var_type = ""
@@ -109,11 +110,11 @@ def generate_event_implement(api_name, event_name, params):
}
""",
var_type = var_type,
- var = c_name(argname),
- type = type_name(argentry),
- name = argname)
+ var=c_name(memb.name),
+ type=memb.type.c_name(),
+ name=memb.name)
- if optional:
+ if memb.optional:
pop_indent()
ret += mcgen("""
}
@@ -140,7 +141,7 @@ def generate_event_implement(api_name, event_name, params):
event_enum_value = c_enum_const(event_enum_name, event_name))
# step 5: clean up
- if params:
+ if params and params.members:
ret += mcgen("""
clean:
qmp_output_visitor_cleanup(qov);
@@ -153,6 +154,30 @@ def generate_event_implement(api_name, event_name, params):
return ret
+
+class QAPISchemaGenEventVisitor(QAPISchemaVisitor):
+ def __init__(self):
+ self.decl = None
+ self.defn = None
+ self._event_names = None
+
+ def visit_begin(self, schema):
+ self.decl = ''
+ self.defn = ''
+ 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._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._event_names.append(name)
+
+
(input_file, output_dir, do_c, do_h, prefix, dummy) = parse_command_line()
c_comment = '''
@@ -206,32 +231,12 @@ fdecl.write(mcgen('''
''',
prefix=prefix))
-exprs = QAPISchema(input_file).get_exprs()
-
event_enum_name = c_name(prefix + "QAPIEvent", protect=False)
-event_names = []
-
-for expr in exprs:
- if expr.has_key('event'):
- event_name = expr['event']
- params = expr.get('data')
- if params and len(params) == 0:
- params = None
-
- api_name = _generate_event_api_name(event_name, params)
- ret = generate_event_declaration(api_name)
- fdecl.write(ret)
-
- # We need an enum value per event
- ret = generate_event_implement(api_name, event_name, params)
- fdef.write(ret)
-
- # Record it, and generate enum later
- event_names.append(event_name)
-
-ret = generate_enum(event_enum_name, event_names)
-fdecl.write(ret)
-ret = generate_enum_lookup(event_enum_name, event_names)
-fdef.write(ret)
+
+schema = QAPISchema(input_file)
+gen = QAPISchemaGenEventVisitor()
+schema.visit(gen)
+fdef.write(gen.defn)
+fdecl.write(gen.decl)
close_output(fdef, fdecl)