# QAPI command marshaller generator
#
# Copyright IBM, Corp. 2011
+# Copyright (C) 2014 Red Hat, Inc.
#
# Authors:
#
# 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 *
+import re
import sys
import os
import getopt
def generate_command_decl(name, args, ret_type):
arglist=""
for argname, argtype, optional, structured in parse_args(args):
- argtype = c_type(argtype)
- if argtype == "char *":
- argtype = "const char *"
+ argtype = c_type(argtype, is_param=True)
if optional:
arglist += "bool has_%s, " % c_var(argname)
arglist += "%s %s, " % (argtype, c_var(argname))
''',
ret_type=c_type(ret_type), name=c_fun(name), args=arglist).strip()
+def gen_err_check(errvar):
+ if errvar:
+ return mcgen('''
+if (local_err) {
+ goto out;
+}
+''')
+ return ''
+
def gen_sync_call(name, args, ret_type, indent=0):
ret = ""
arglist=""
arglist += "%s, " % (c_var(argname))
push_indent(indent)
ret = mcgen('''
-%(retval)sqmp_%(name)s(%(args)serrp);
+%(retval)sqmp_%(name)s(%(args)s&local_err);
''',
name=c_fun(name), args=arglist, retval=retval).rstrip()
if ret_type:
+ ret += "\n" + gen_err_check('local_err')
ret += "\n" + mcgen(''''
-if (!error_is_set(errp)) {
- %(marshal_output_call)s
-}
+%(marshal_output_call)s
''',
marshal_output_call=gen_marshal_output_call(name, ret_type)).rstrip()
pop_indent(indent)
def gen_marshal_output_call(name, ret_type):
if not ret_type:
return ""
- return "qmp_marshal_output_%s(retval, ret, errp);" % c_fun(name)
+ return "qmp_marshal_output_%s(retval, ret, &local_err);" % c_fun(name)
def gen_visitor_input_containers_decl(args, obj):
ret = ""
bool has_%(argname)s = false;
''',
argname=c_var(argname))
- if c_type(argtype).endswith("*"):
+ if is_c_ptr(argtype):
ret += mcgen('''
%(argtype)s %(argname)s = NULL;
''',
argname=c_var(argname), argtype=c_type(argtype))
else:
ret += mcgen('''
-%(argtype)s %(argname)s;
+%(argtype)s %(argname)s = {0};
''',
argname=c_var(argname), argtype=c_type(argtype))
def gen_visitor_input_block(args, dealloc=False):
ret = ""
- errparg = 'errp'
+ errparg = '&local_err'
+ errarg = 'local_err'
if len(args) == 0:
return ret
if dealloc:
errparg = 'NULL'
+ errarg = None;
ret += mcgen('''
qmp_input_visitor_cleanup(mi);
md = qapi_dealloc_visitor_new();
for argname, argtype, optional, structured in parse_args(args):
if optional:
ret += mcgen('''
-visit_start_optional(v, &has_%(c_name)s, "%(name)s", %(errp)s);
-if (has_%(c_name)s) {
+visit_optional(v, &has_%(c_name)s, "%(name)s", %(errp)s);
''',
c_name=c_var(argname), name=argname, errp=errparg)
+ ret += gen_err_check(errarg)
+ ret += mcgen('''
+if (has_%(c_name)s) {
+''',
+ c_name=c_var(argname))
push_indent()
ret += mcgen('''
%(visitor)s(v, &%(c_name)s, "%(name)s", %(errp)s);
''',
c_name=c_var(argname), name=argname, argtype=argtype,
visitor=type_visitor(argtype), errp=errparg)
+ ret += gen_err_check(errarg)
if optional:
pop_indent()
ret += mcgen('''
}
-visit_end_optional(v, %(errp)s);
-''', errp=errparg)
+''')
if dealloc:
ret += mcgen('''
ret = mcgen('''
static void qmp_marshal_output_%(c_name)s(%(c_ret_type)s ret_in, QObject **ret_out, Error **errp)
{
+ Error *local_err = NULL;
QmpOutputVisitor *mo = qmp_output_visitor_new();
QapiDeallocVisitor *md;
Visitor *v;
v = qmp_output_get_visitor(mo);
- %(visitor)s(v, &ret_in, "unused", errp);
- if (!error_is_set(errp)) {
- *ret_out = qmp_output_get_qobject(mo);
+ %(visitor)s(v, &ret_in, "unused", &local_err);
+ if (local_err) {
+ goto out;
}
+ *ret_out = qmp_output_get_qobject(mo);
+
+out:
+ error_propagate(errp, local_err);
qmp_output_visitor_cleanup(mo);
md = qapi_dealloc_visitor_new();
v = qapi_dealloc_get_visitor(md);
ret = mcgen('''
%(header)s
{
+ Error *local_err = NULL;
''',
header=hdr)
if middle_mode:
ret += mcgen('''
- Error *local_err = NULL;
- Error **errp = &local_err;
QDict *args = (QDict *)qdict;
''')
if ret_type:
- if c_type(ret_type).endswith("*"):
+ if is_c_ptr(ret_type):
retval = " %s retval = NULL;" % c_type(ret_type)
else:
retval = " %s retval;" % c_type(ret_type)
visitor_input_block=gen_visitor_input_block(args))
else:
ret += mcgen('''
+
(void)args;
''')
ret += mcgen('''
- if (error_is_set(errp)) {
- goto out;
- }
%(sync_call)s
''',
sync_call=gen_sync_call(name, args, ret_type, indent=4))
- ret += mcgen('''
+ if re.search('^ *goto out\\;', ret, re.MULTILINE):
+ ret += mcgen('''
out:
+''')
+ if not middle_mode:
+ ret += mcgen('''
+ error_propagate(errp, local_err);
''')
ret += mcgen('''
%(visitor_input_block_cleanup)s