# 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
import errno
-def generate_decl_enum(name, members, genlist=True):
- return mcgen('''
-
-void visit_type_%(name)s(Visitor *m, %(name)s * obj, const char *name, Error **errp);
-''',
- name=name)
+def type_visitor(name):
+ if type(name) == list:
+ return 'visit_type_%sList' % name[0]
+ else:
+ return 'visit_type_%s' % 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(''''
%(marshal_output_call)s
''',
def gen_marshal_output_call(name, ret_type):
if not ret_type:
return ""
- return "qmp_marshal_output_%s(retval, ret, errp);" % c_var(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
+ return "qmp_marshal_output_%s(retval, ret, &local_err);" % c_fun(name)
-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('''
-visit_type_%(argtype)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)
+ 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);
''')
if dealloc:
ret += mcgen('''
qapi_dealloc_visitor_cleanup(md);
-''')
- else:
- ret += mcgen('''
-qmp_input_visitor_cleanup(mi);
''')
pop_indent()
return ret.rstrip()
-def gen_marshal_output(name, args, ret_type):
+def gen_marshal_output(name, args, ret_type, middle_mode):
if not ret_type:
return ""
+
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);
- visit_type_%(ret_type)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);
- visit_type_%(ret_type)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), ret_type=ret_type)
+ c_ret_type=c_type(ret_type), c_name=c_fun(name),
+ visitor=type_visitor(ret_type))
return ret
-def gen_marshal_input(name, args, ret_type):
+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_fun(name)
+ else:
+ return 'static void qmp_marshal_input_%s(QDict *args, QObject **ret, Error **errp)' % c_fun(name)
+
+
+
+def gen_marshal_input(name, args, ret_type, middle_mode):
+ hdr = gen_marshal_input_decl(name, args, ret_type, middle_mode)
+
ret = mcgen('''
-static void qmp_marshal_input_%(c_name)s(QDict *args, QObject **ret, Error **errp)
+%(header)s
{
+ Error *local_err = NULL;
''',
- c_name=c_var(name))
+ header=hdr)
+
+ if middle_mode:
+ ret += mcgen('''
+ 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,
+ dealloc=True))
+
+ if middle_mode:
+ ret += mcgen('''
+
+ if (local_err) {
+ qerror_report_err(local_err);
+ error_free(local_err);
+ return -1;
+ }
+ return 0;
+''')
+ else:
+ ret += mcgen('''
return;
+''')
+
+ ret += mcgen('''
}
-''',
- visitor_input_block_cleanup=gen_visitor_input_block(args, None, dealloc=True))
+''')
+
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(h_file), guard=guardname(h_file), prefix=prefix)
+ header=basename(header), guard=guardname(header), prefix=prefix)
return ret
def gen_command_def_prologue(prefix="", proxy=False):
*
*/
-#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"
prefix=prefix)
if not proxy:
ret += '#include "%sqmp-commands.h"' % prefix
- return ret + "\n"
+ return ret + "\n\n"
try:
- opts, args = getopt.gnu_getopt(sys.argv[1:], "p:o:", ["prefix=", "output-dir=", "type="])
+ opts, args = getopt.gnu_getopt(sys.argv[1:], "chp:i:o:m",
+ ["source", "header", "prefix=",
+ "input-file=", "output-dir=",
+ "type=", "middle"])
except getopt.GetoptError, err:
print str(err)
sys.exit(1)
dispatch_type = "sync"
c_file = 'qmp-marshal.c'
h_file = 'qmp-commands.h'
+middle_mode = False
+
+do_c = False
+do_h = False
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"):
dispatch_type = a
+ elif o in ("-m", "--middle"):
+ middle_mode = True
+ elif o in ("-c", "--source"):
+ do_c = True
+ elif o in ("-h", "--header"):
+ do_h = True
+
+if not do_c and not do_h:
+ do_c = True
+ do_h = True
c_file = output_dir + prefix + c_file
h_file = output_dir + prefix + h_file
+def maybe_open(really, name, opt):
+ if really:
+ return open(name, opt)
+ else:
+ import StringIO
+ return StringIO.StringIO()
+
try:
os.makedirs(output_dir)
except os.error, e:
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)
if dispatch_type == "sync":
- fdecl = open(h_file, 'w')
- fdef = open(c_file, 'w')
+ fdecl = maybe_open(do_h, h_file, 'w')
+ fdef = maybe_open(do_c, c_file, 'w')
ret = gen_command_decl_prologue(header=basename(h_file), guard=guardname(h_file), prefix=prefix)
fdecl.write(ret)
ret = gen_command_def_prologue(prefix=prefix)
ret = generate_command_decl(cmd['command'], arglist, ret_type) + "\n"
fdecl.write(ret)
if ret_type:
- ret = gen_marshal_output(cmd['command'], arglist, ret_type) + "\n"
+ ret = gen_marshal_output(cmd['command'], arglist, ret_type, middle_mode) + "\n"
fdef.write(ret)
- ret = gen_marshal_input(cmd['command'], arglist, ret_type) + "\n"
+
+ if middle_mode:
+ fdecl.write('%s;\n' % gen_marshal_input_decl(cmd['command'], arglist, ret_type, middle_mode))
+
+ ret = gen_marshal_input(cmd['command'], arglist, ret_type, middle_mode) + "\n"
fdef.write(ret)
- fdecl.write("\n#endif");
- ret = gen_registry(commands)
- fdef.write(ret)
+ fdecl.write("\n#endif\n");
+
+ if not middle_mode:
+ ret = gen_registry(commands)
+ fdef.write(ret)
fdef.flush()
fdef.close()
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