14f00c6c49
C types and JSON objects don't have fields, but members. We shouldn't gratuitously invent terminology. This patch is a strict renaming of generator code internals (including testsuite comments), before later patches rename C interfaces. No change to generated code with this patch. Suggested-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <1457021813-10704-2-git-send-email-eblake@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
189 lines
4.1 KiB
Python
189 lines
4.1 KiB
Python
#
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# QAPI event generator
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#
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# Copyright (c) 2014 Wenchao Xia
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# Copyright (c) 2015-2016 Red Hat Inc.
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#
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# Authors:
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# Wenchao Xia <wenchaoqemu@gmail.com>
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# Markus Armbruster <armbru@redhat.com>
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#
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# This work is licensed under the terms of the GNU GPL, version 2.
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# See the COPYING file in the top-level directory.
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from qapi import *
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def gen_event_send_proto(name, arg_type):
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return 'void qapi_event_send_%(c_name)s(%(param)s)' % {
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'c_name': c_name(name.lower()),
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'param': gen_params(arg_type, 'Error **errp')}
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def gen_event_send_decl(name, arg_type):
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return mcgen('''
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%(proto)s;
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''',
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proto=gen_event_send_proto(name, arg_type))
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def gen_event_send(name, arg_type):
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ret = mcgen('''
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%(proto)s
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{
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QDict *qmp;
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Error *err = NULL;
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QMPEventFuncEmit emit;
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''',
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proto=gen_event_send_proto(name, arg_type))
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if arg_type and arg_type.members:
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ret += mcgen('''
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QmpOutputVisitor *qov;
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Visitor *v;
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QObject *obj;
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''')
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ret += mcgen('''
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emit = qmp_event_get_func_emit();
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if (!emit) {
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return;
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}
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qmp = qmp_event_build_dict("%(name)s");
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''',
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name=name)
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if arg_type and arg_type.members:
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ret += mcgen('''
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qov = qmp_output_visitor_new();
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v = qmp_output_get_visitor(qov);
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visit_start_struct(v, "%(name)s", NULL, 0, &err);
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''',
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name=name)
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ret += gen_err_check()
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ret += gen_visit_members(arg_type.members, need_cast=True,
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label='out_obj')
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ret += mcgen('''
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out_obj:
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visit_end_struct(v, err ? NULL : &err);
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if (err) {
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goto out;
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}
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obj = qmp_output_get_qobject(qov);
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g_assert(obj);
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qdict_put_obj(qmp, "data", obj);
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''')
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ret += mcgen('''
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emit(%(c_enum)s, qmp, &err);
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''',
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c_enum=c_enum_const(event_enum_name, name))
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if arg_type and arg_type.members:
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ret += mcgen('''
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out:
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qmp_output_visitor_cleanup(qov);
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''')
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ret += mcgen('''
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error_propagate(errp, err);
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QDECREF(qmp);
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}
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''')
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return ret
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class QAPISchemaGenEventVisitor(QAPISchemaVisitor):
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def __init__(self):
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self.decl = None
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self.defn = None
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self._event_names = None
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def visit_begin(self, schema):
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self.decl = ''
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self.defn = ''
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self._event_names = []
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def visit_end(self):
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self.decl += gen_enum(event_enum_name, self._event_names)
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self.defn += gen_enum_lookup(event_enum_name, self._event_names)
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self._event_names = None
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def visit_event(self, name, info, arg_type):
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self.decl += gen_event_send_decl(name, arg_type)
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self.defn += gen_event_send(name, arg_type)
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self._event_names.append(name)
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(input_file, output_dir, do_c, do_h, prefix, dummy) = parse_command_line()
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c_comment = '''
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/*
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* schema-defined QAPI event functions
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*
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* Copyright (c) 2014 Wenchao Xia
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*
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* Authors:
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* Wenchao Xia <wenchaoqemu@gmail.com>
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*
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* This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
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* See the COPYING.LIB file in the top-level directory.
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*
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*/
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'''
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h_comment = '''
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/*
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* schema-defined QAPI event functions
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*
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* Copyright (c) 2014 Wenchao Xia
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*
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* Authors:
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* Wenchao Xia <wenchaoqemu@gmail.com>
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*
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* This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
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* See the COPYING.LIB file in the top-level directory.
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*
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*/
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'''
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(fdef, fdecl) = open_output(output_dir, do_c, do_h, prefix,
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'qapi-event.c', 'qapi-event.h',
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c_comment, h_comment)
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fdef.write(mcgen('''
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#include "qemu/osdep.h"
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#include "qemu-common.h"
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#include "%(prefix)sqapi-event.h"
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#include "%(prefix)sqapi-visit.h"
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#include "qapi/qmp-output-visitor.h"
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#include "qapi/qmp-event.h"
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''',
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prefix=prefix))
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fdecl.write(mcgen('''
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#include "qapi/error.h"
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#include "qapi/qmp/qdict.h"
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#include "%(prefix)sqapi-types.h"
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''',
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prefix=prefix))
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event_enum_name = c_name(prefix + "QAPIEvent", protect=False)
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schema = QAPISchema(input_file)
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gen = QAPISchemaGenEventVisitor()
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schema.visit(gen)
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fdef.write(gen.defn)
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fdecl.write(gen.decl)
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close_output(fdef, fdecl)
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