# 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 GPLv2.
-# See the COPYING.LIB file in the top-level directory.
+# 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
else:
return 'visit_type_%s' % name
-def generate_decl_enum(name, members, genlist=True):
- return mcgen('''
-
-void %(visitor)s(Visitor *m, %(name)s * obj, const char *name, Error **errp);
-''',
- visitor=type_visitor(name))
-
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))
return mcgen('''
%(ret_type)s qmp_%(name)s(%(args)sError **errp);
''',
- ret_type=c_type(ret_type), name=c_var(name), args=arglist).strip()
+ 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 += "%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_var(name), args=arglist, retval=retval).rstrip()
+ 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_var(name)
+ return "qmp_marshal_output_%s(retval, ret, &local_err);" % c_fun(name)
-def gen_visitor_output_containers_decl(ret_type):
- ret = ""
- push_indent()
- if ret_type:
- ret += mcgen('''
-QmpOutputVisitor *mo;
-QapiDeallocVisitor *md;
-Visitor *v;
-''')
- pop_indent()
-
- return ret
-
-def gen_visitor_input_containers_decl(args):
+def gen_visitor_input_containers_decl(args, obj):
ret = ""
push_indent()
if len(args) > 0:
ret += mcgen('''
-QmpInputVisitor *mi;
+QmpInputVisitor *mi = qmp_input_visitor_new_strict(%(obj)s);
QapiDeallocVisitor *md;
Visitor *v;
-''')
+''',
+ obj=obj)
pop_indent()
return ret.rstrip()
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))
pop_indent()
return ret.rstrip()
-def gen_visitor_input_block(args, obj, dealloc=False):
+def gen_visitor_input_block(args, dealloc=False):
ret = ""
+ errparg = '&local_err'
+ errarg = 'local_err'
+
if len(args) == 0:
return ret
push_indent()
if dealloc:
+ errparg = 'NULL'
+ errarg = None;
ret += mcgen('''
+qmp_input_visitor_cleanup(mi);
md = qapi_dealloc_visitor_new();
v = qapi_dealloc_get_visitor(md);
''')
else:
ret += mcgen('''
-mi = qmp_input_visitor_new(%(obj)s);
v = qmp_input_get_visitor(mi);
-''',
- obj=obj)
+''')
for argname, argtype, optional, structured in parse_args(args):
if optional:
ret += mcgen('''
-visit_start_optional(v, &has_%(c_name)s, "%(name)s", errp);
+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), name=argname)
+ c_name=c_var(argname))
push_indent()
ret += mcgen('''
-%(visitor)s(v, &%(c_name)s, "%(name)s", errp);
+%(visitor)s(v, &%(c_name)s, "%(name)s", %(errp)s);
''',
c_name=c_var(argname), name=argname, argtype=argtype,
- visitor=type_visitor(argtype))
+ visitor=type_visitor(argtype), errp=errparg)
+ ret += gen_err_check(errarg)
if optional:
pop_indent()
ret += mcgen('''
}
-visit_end_optional(v, errp);
''')
if dealloc:
ret += mcgen('''
qapi_dealloc_visitor_cleanup(md);
-''')
- else:
- ret += mcgen('''
-qmp_input_visitor_cleanup(mi);
''')
pop_indent()
return ret.rstrip()
ret = mcgen('''
static void qmp_marshal_output_%(c_name)s(%(c_ret_type)s ret_in, QObject **ret_out, Error **errp)
{
- QapiDeallocVisitor *md = qapi_dealloc_visitor_new();
+ 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);
- %(visitor)s(v, &ret_in, "unused", errp);
+ %(visitor)s(v, &ret_in, "unused", NULL);
qapi_dealloc_visitor_cleanup(md);
}
''',
- c_ret_type=c_type(ret_type), c_name=c_var(name),
+ c_ret_type=c_type(ret_type), c_name=c_fun(name),
visitor=type_visitor(ret_type))
return ret
def gen_marshal_input_decl(name, args, ret_type, middle_mode):
if middle_mode:
- return 'int qmp_marshal_input_%s(Monitor *mon, const QDict *qdict, QObject **ret)' % c_var(name)
+ return 'int qmp_marshal_input_%s(Monitor *mon, const QDict *qdict, QObject **ret)' % c_fun(name)
else:
- return 'static void qmp_marshal_input_%s(QDict *args, QObject **ret, Error **errp)' % c_var(name)
+ return 'static void qmp_marshal_input_%s(QDict *args, QObject **ret, Error **errp)' % c_fun(name)
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)s
''',
- visitor_input_containers_decl=gen_visitor_input_containers_decl(args),
+ visitor_input_containers_decl=gen_visitor_input_containers_decl(args, "QOBJECT(args)"),
visitor_input_vars_decl=gen_visitor_input_vars_decl(args),
- visitor_input_block=gen_visitor_input_block(args, "QOBJECT(args)"))
+ 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
''',
- visitor_input_block_cleanup=gen_visitor_input_block(args, None,
+ visitor_input_block_cleanup=gen_visitor_input_block(args,
dealloc=True))
if middle_mode:
return ret
+def option_value_matches(opt, val, cmd):
+ if opt in cmd and cmd[opt] == val:
+ return True
+ return False
+
def gen_registry(commands):
registry=""
push_indent()
for cmd in commands:
+ options = 'QCO_NO_OPTIONS'
+ if option_value_matches('success-response', 'no', cmd):
+ options = 'QCO_NO_SUCCESS_RESP'
+
registry += mcgen('''
-qmp_register_command("%(name)s", qmp_marshal_input_%(c_name)s);
+qmp_register_command("%(name)s", qmp_marshal_input_%(c_name)s, %(opts)s);
''',
- name=cmd['command'], c_name=c_var(cmd['command']))
+ name=cmd['command'], c_name=c_fun(cmd['command']),
+ opts=options)
pop_indent()
ret = mcgen('''
static void qmp_init_marshal(void)
#define %(guard)s
#include "%(prefix)sqapi-types.h"
-#include "error.h"
+#include "qapi/qmp/qdict.h"
+#include "qapi/error.h"
''',
header=basename(header), guard=guardname(header), prefix=prefix)
*
*/
-#include "qemu-objects.h"
-#include "qapi/qmp-core.h"
-#include "qapi/qapi-visit-core.h"
+#include "qemu-common.h"
+#include "qemu/module.h"
+#include "qapi/qmp/qerror.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/qapi-dealloc-visitor.h"
+#include "qapi/dealloc-visitor.h"
#include "%(prefix)sqapi-types.h"
#include "%(prefix)sqapi-visit.h"
try:
- opts, args = getopt.gnu_getopt(sys.argv[1:], "chp:o:m",
+ opts, args = getopt.gnu_getopt(sys.argv[1:], "chp:i:o:m",
["source", "header", "prefix=",
- "output-dir=", "type=", "middle"])
+ "input-file=", "output-dir=",
+ "type=", "middle"])
except getopt.GetoptError, err:
print str(err)
sys.exit(1)
for o, a in opts:
if o in ("-p", "--prefix"):
prefix = a
+ elif o in ("-i", "--input-file"):
+ input_file = a
elif o in ("-o", "--output-dir"):
output_dir = a + "/"
elif o in ("-t", "--type"):
elif o in ("-m", "--middle"):
middle_mode = True
elif o in ("-c", "--source"):
- do_h = True
- elif o in ("-h", "--header"):
do_c = True
+ elif o in ("-h", "--header"):
+ do_h = True
if not do_c and not do_h:
do_c = True
h_file = output_dir + prefix + h_file
def maybe_open(really, name, opt):
- class Null(object):
- def write(self, str):
- pass
- def read(self):
- return ''
if really:
return open(name, opt)
else:
- return Null()
+ import StringIO
+ return StringIO.StringIO()
try:
os.makedirs(output_dir)
if e.errno != errno.EEXIST:
raise
-exprs = parse_schema(sys.stdin)
+exprs = parse_schema(input_file)
commands = filter(lambda expr: expr.has_key('command'), exprs)
commands = filter(lambda expr: not expr.has_key('gen'), commands)
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