# QAPI command marshaller generator
#
# Copyright IBM, Corp. 2011
-# Copyright (C) 2014-2015 Red Hat, Inc.
+# Copyright (C) 2014-2016 Red Hat, Inc.
#
# Authors:
# See the COPYING file in the top-level directory.
from qapi import *
-import re
-def gen_command_decl(name, arg_type, ret_type):
+def gen_command_decl(name, arg_type, boxed, ret_type):
return mcgen('''
%(c_type)s qmp_%(c_name)s(%(params)s);
''',
c_type=(ret_type and ret_type.c_type()) or 'void',
c_name=c_name(name),
- params=gen_params(arg_type, 'Error **errp'))
+ params=gen_params(arg_type, boxed, 'Error **errp'))
-def gen_call(name, arg_type, ret_type):
+def gen_call(name, arg_type, boxed, ret_type):
ret = ''
argstr = ''
- if arg_type:
+ if boxed:
+ assert arg_type and not arg_type.is_empty()
+ argstr = '&arg, '
+ elif arg_type:
+ assert not arg_type.variants
for memb in arg_type.members:
if memb.optional:
- argstr += 'has_%s, ' % c_name(memb.name)
- argstr += '%s, ' % c_name(memb.name)
+ argstr += 'arg.has_%s, ' % c_name(memb.name)
+ argstr += 'arg.%s, ' % c_name(memb.name)
lhs = ''
if ret_type:
''',
c_name=c_name(name), args=argstr, lhs=lhs)
if ret_type:
- ret += gen_err_check()
ret += mcgen('''
+ if (err) {
+ goto out;
+ }
qmp_marshal_output_%(c_name)s(retval, ret, &err);
''',
return ret
-def gen_marshal_vars(arg_type, ret_type):
- ret = mcgen('''
- Error *err = NULL;
-''')
-
- if ret_type:
- ret += mcgen('''
- %(c_type)s retval;
-''',
- c_type=ret_type.c_type())
-
- if arg_type:
- ret += mcgen('''
- QmpInputVisitor *qiv = qmp_input_visitor_new_strict(QOBJECT(args));
- QapiDeallocVisitor *qdv;
- Visitor *v;
-''')
-
- for memb in arg_type.members:
- if memb.optional:
- ret += mcgen('''
- bool has_%(c_name)s = false;
-''',
- c_name=c_name(memb.name))
- ret += mcgen('''
- %(c_type)s %(c_name)s = %(c_null)s;
-''',
- c_name=c_name(memb.name),
- c_type=memb.type.c_type(),
- c_null=memb.type.c_null())
- ret += '\n'
- else:
- ret += mcgen('''
-
- (void)args;
-''')
-
- return ret
-
-
-def gen_marshal_input_visit(arg_type, dealloc=False):
- ret = ''
-
- if not arg_type:
- return ret
-
- if dealloc:
- ret += mcgen('''
- qmp_input_visitor_cleanup(qiv);
- qdv = qapi_dealloc_visitor_new();
- v = qapi_dealloc_get_visitor(qdv);
-''')
- else:
- ret += mcgen('''
- v = qmp_input_get_visitor(qiv);
-''')
-
- ret += gen_visit_fields(arg_type.members, skiperr=dealloc)
-
- if dealloc:
- ret += mcgen('''
- qapi_dealloc_visitor_cleanup(qdv);
-''')
- return ret
-
-
def gen_marshal_output(ret_type):
return mcgen('''
static void qmp_marshal_output_%(c_name)s(%(c_type)s ret_in, QObject **ret_out, Error **errp)
{
Error *err = NULL;
- QmpOutputVisitor *qov = qmp_output_visitor_new();
- QapiDeallocVisitor *qdv;
Visitor *v;
- v = qmp_output_get_visitor(qov);
- visit_type_%(c_name)s(v, &ret_in, "unused", &err);
- if (err) {
- goto out;
+ v = qobject_output_visitor_new(ret_out);
+ visit_type_%(c_name)s(v, "unused", &ret_in, &err);
+ if (!err) {
+ visit_complete(v, ret_out);
}
- *ret_out = qmp_output_get_qobject(qov);
-
-out:
error_propagate(errp, err);
- qmp_output_visitor_cleanup(qov);
- qdv = qapi_dealloc_visitor_new();
- v = qapi_dealloc_get_visitor(qdv);
- visit_type_%(c_name)s(v, &ret_in, "unused", NULL);
- qapi_dealloc_visitor_cleanup(qdv);
+ visit_free(v);
+ v = qapi_dealloc_visitor_new();
+ visit_type_%(c_name)s(v, "unused", &ret_in, NULL);
+ visit_free(v);
}
''',
c_type=ret_type.c_type(), c_name=ret_type.c_name())
def gen_marshal_proto(name):
- ret = 'void qmp_marshal_%s(QDict *args, QObject **ret, Error **errp)' % c_name(name)
- if not middle_mode:
- ret = 'static ' + ret
- return ret
+ return ('void qmp_marshal_%s(QDict *args, QObject **ret, Error **errp)'
+ % c_name(name))
def gen_marshal_decl(name):
proto=gen_marshal_proto(name))
-def gen_marshal(name, arg_type, ret_type):
+def gen_marshal(name, arg_type, boxed, ret_type):
+ have_args = arg_type and not arg_type.is_empty()
+
ret = mcgen('''
%(proto)s
{
+ Error *err = NULL;
''',
proto=gen_marshal_proto(name))
- ret += gen_marshal_vars(arg_type, ret_type)
- ret += gen_marshal_input_visit(arg_type)
- ret += gen_call(name, arg_type, ret_type)
+ if ret_type:
+ ret += mcgen('''
+ %(c_type)s retval;
+''',
+ c_type=ret_type.c_type())
- if re.search('^ *goto out;', ret, re.MULTILINE):
+ if have_args:
+ visit_members = ('visit_type_%s_members(v, &arg, &err);'
+ % arg_type.c_name())
ret += mcgen('''
+ Visitor *v;
+ %(c_name)s arg = {0};
-out:
+''',
+ c_name=arg_type.c_name())
+ else:
+ visit_members = ''
+ ret += mcgen('''
+ Visitor *v = NULL;
+
+ if (args) {
+''')
+ push_indent()
+
+ ret += mcgen('''
+ v = qobject_input_visitor_new(QOBJECT(args));
+ visit_start_struct(v, NULL, NULL, 0, &err);
+ if (err) {
+ goto out;
+ }
+ %(visit_members)s
+ if (!err) {
+ visit_check_struct(v, &err);
+ }
+ visit_end_struct(v, NULL);
+ if (err) {
+ goto out;
+ }
+''',
+ visit_members=visit_members)
+
+ if not have_args:
+ pop_indent()
+ ret += mcgen('''
+ }
''')
+
+ ret += gen_call(name, arg_type, boxed, ret_type)
+
ret += mcgen('''
+
+out:
error_propagate(errp, err);
+ visit_free(v);
''')
- ret += gen_marshal_input_visit(arg_type, dealloc=True)
+
+ if have_args:
+ visit_members = ('visit_type_%s_members(v, &arg, NULL);'
+ % arg_type.c_name())
+ else:
+ visit_members = ''
+ ret += mcgen('''
+ if (args) {
+''')
+ push_indent()
+
+ ret += mcgen('''
+ v = qapi_dealloc_visitor_new();
+ visit_start_struct(v, NULL, NULL, 0, NULL);
+ %(visit_members)s
+ visit_end_struct(v, NULL);
+ visit_free(v);
+''',
+ visit_members=visit_members)
+
+ if not have_args:
+ pop_indent()
+ ret += mcgen('''
+ }
+''')
+
ret += mcgen('''
}
''')
options = 'QCO_NO_SUCCESS_RESP'
ret = mcgen('''
- qmp_register_command("%(name)s", qmp_marshal_%(c_name)s, %(opts)s);
+ qmp_register_command(cmds, "%(name)s",
+ qmp_marshal_%(c_name)s, %(opts)s);
''',
name=name, c_name=c_name(name),
opts=options)
def gen_registry(registry):
ret = mcgen('''
-static void qmp_init_marshal(void)
+void %(c_prefix)sqmp_init_marshal(QmpCommandList *cmds)
{
-''')
+ QTAILQ_INIT(cmds);
+
+''',
+ c_prefix=c_name(prefix, protect=False))
ret += registry
ret += mcgen('''
}
-
-qapi_init(qmp_init_marshal);
''')
return ret
self._visited_ret_types = set()
def visit_end(self):
- if not middle_mode:
- self.defn += gen_registry(self._regy)
+ self.defn += gen_registry(self._regy)
self._regy = None
self._visited_ret_types = None
def visit_command(self, name, info, arg_type, ret_type,
- gen, success_response):
+ gen, success_response, boxed):
if not gen:
return
- self.decl += gen_command_decl(name, arg_type, ret_type)
+ self.decl += gen_command_decl(name, arg_type, boxed, ret_type)
if ret_type and ret_type not in self._visited_ret_types:
self._visited_ret_types.add(ret_type)
self.defn += gen_marshal_output(ret_type)
- if middle_mode:
- self.decl += gen_marshal_decl(name)
- self.defn += gen_marshal(name, arg_type, ret_type)
- if not middle_mode:
- self._regy += gen_register_command(name, success_response)
-
+ self.decl += gen_marshal_decl(name)
+ self.defn += gen_marshal(name, arg_type, boxed, ret_type)
+ self._regy += gen_register_command(name, success_response)
-middle_mode = False
-(input_file, output_dir, do_c, do_h, prefix, opts) = \
- parse_command_line("m", ["middle"])
-
-for o, a in opts:
- if o in ("-m", "--middle"):
- middle_mode = True
+(input_file, output_dir, do_c, do_h, prefix, opts) = parse_command_line()
c_comment = '''
/*
c_comment, h_comment)
fdef.write(mcgen('''
+#include "qemu/osdep.h"
#include "qemu-common.h"
#include "qemu/module.h"
#include "qapi/qmp/types.h"
-#include "qapi/qmp/dispatch.h"
#include "qapi/visitor.h"
-#include "qapi/qmp-output-visitor.h"
-#include "qapi/qmp-input-visitor.h"
+#include "qapi/qobject-output-visitor.h"
+#include "qapi/qobject-input-visitor.h"
#include "qapi/dealloc-visitor.h"
#include "%(prefix)sqapi-types.h"
#include "%(prefix)sqapi-visit.h"
fdecl.write(mcgen('''
#include "%(prefix)sqapi-types.h"
#include "qapi/qmp/qdict.h"
+#include "qapi/qmp/dispatch.h"
#include "qapi/error.h"
+void %(c_prefix)sqmp_init_marshal(QmpCommandList *cmds);
''',
- prefix=prefix))
+ prefix=prefix, c_prefix=c_name(prefix, protect=False)))
schema = QAPISchema(input_file)
gen = QAPISchemaGenCommandVisitor()
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