444 lines
10 KiB
Python
444 lines
10 KiB
Python
#
|
|
# QAPI types generator
|
|
#
|
|
# Copyright IBM, Corp. 2011
|
|
#
|
|
# Authors:
|
|
# Anthony Liguori <aliguori@us.ibm.com>
|
|
#
|
|
# This work is licensed under the terms of the GNU GPLv2.
|
|
# See the COPYING.LIB file in the top-level directory.
|
|
|
|
from ordereddict import OrderedDict
|
|
from qapi import *
|
|
import sys
|
|
import os
|
|
import getopt
|
|
import errno
|
|
|
|
def generate_fwd_struct(name, members, builtin_type=False):
|
|
if builtin_type:
|
|
return mcgen('''
|
|
|
|
typedef struct %(name)sList
|
|
{
|
|
union {
|
|
%(type)s value;
|
|
uint64_t padding;
|
|
};
|
|
struct %(name)sList *next;
|
|
} %(name)sList;
|
|
''',
|
|
type=c_type(name),
|
|
name=name)
|
|
|
|
return mcgen('''
|
|
|
|
typedef struct %(name)s %(name)s;
|
|
|
|
typedef struct %(name)sList
|
|
{
|
|
union {
|
|
%(name)s *value;
|
|
uint64_t padding;
|
|
};
|
|
struct %(name)sList *next;
|
|
} %(name)sList;
|
|
''',
|
|
name=name)
|
|
|
|
def generate_fwd_enum_struct(name, members):
|
|
return mcgen('''
|
|
typedef struct %(name)sList
|
|
{
|
|
%(name)s value;
|
|
struct %(name)sList *next;
|
|
} %(name)sList;
|
|
''',
|
|
name=name)
|
|
|
|
def generate_struct_fields(members):
|
|
ret = ''
|
|
|
|
for argname, argentry, optional, structured in parse_args(members):
|
|
if optional:
|
|
ret += mcgen('''
|
|
bool has_%(c_name)s;
|
|
''',
|
|
c_name=c_var(argname))
|
|
if structured:
|
|
push_indent()
|
|
ret += generate_struct("", argname, argentry)
|
|
pop_indent()
|
|
else:
|
|
ret += mcgen('''
|
|
%(c_type)s %(c_name)s;
|
|
''',
|
|
c_type=c_type(argentry), c_name=c_var(argname))
|
|
|
|
return ret
|
|
|
|
def generate_struct(structname, fieldname, members):
|
|
ret = mcgen('''
|
|
struct %(name)s
|
|
{
|
|
''',
|
|
name=structname)
|
|
|
|
ret += generate_struct_fields(members)
|
|
|
|
if len(fieldname):
|
|
fieldname = " " + fieldname
|
|
ret += mcgen('''
|
|
}%(field)s;
|
|
''',
|
|
field=fieldname)
|
|
|
|
return ret
|
|
|
|
def generate_enum_lookup(name, values):
|
|
ret = mcgen('''
|
|
const char *%(name)s_lookup[] = {
|
|
''',
|
|
name=name)
|
|
i = 0
|
|
for value in values:
|
|
ret += mcgen('''
|
|
"%(value)s",
|
|
''',
|
|
value=value)
|
|
|
|
ret += mcgen('''
|
|
NULL,
|
|
};
|
|
|
|
''')
|
|
return ret
|
|
|
|
def generate_enum_name(name):
|
|
if name.isupper():
|
|
return c_fun(name, False)
|
|
new_name = ''
|
|
for c in c_fun(name, False):
|
|
if c.isupper():
|
|
new_name += '_'
|
|
new_name += c
|
|
return new_name.lstrip('_').upper()
|
|
|
|
def generate_enum(name, values):
|
|
lookup_decl = mcgen('''
|
|
extern const char *%(name)s_lookup[];
|
|
''',
|
|
name=name)
|
|
|
|
enum_decl = mcgen('''
|
|
typedef enum %(name)s
|
|
{
|
|
''',
|
|
name=name)
|
|
|
|
# append automatically generated _MAX value
|
|
enum_values = values + [ 'MAX' ]
|
|
|
|
i = 0
|
|
for value in enum_values:
|
|
enum_decl += mcgen('''
|
|
%(abbrev)s_%(value)s = %(i)d,
|
|
''',
|
|
abbrev=de_camel_case(name).upper(),
|
|
value=generate_enum_name(value),
|
|
i=i)
|
|
i += 1
|
|
|
|
enum_decl += mcgen('''
|
|
} %(name)s;
|
|
''',
|
|
name=name)
|
|
|
|
return lookup_decl + enum_decl
|
|
|
|
def generate_anon_union_qtypes(expr):
|
|
|
|
name = expr['union']
|
|
members = expr['data']
|
|
|
|
ret = mcgen('''
|
|
const int %(name)s_qtypes[QTYPE_MAX] = {
|
|
''',
|
|
name=name)
|
|
|
|
for key in members:
|
|
qapi_type = members[key]
|
|
if builtin_type_qtypes.has_key(qapi_type):
|
|
qtype = builtin_type_qtypes[qapi_type]
|
|
elif find_struct(qapi_type):
|
|
qtype = "QTYPE_QDICT"
|
|
elif find_union(qapi_type):
|
|
qtype = "QTYPE_QDICT"
|
|
else:
|
|
assert False, "Invalid anonymous union member"
|
|
|
|
ret += mcgen('''
|
|
[ %(qtype)s ] = %(abbrev)s_KIND_%(enum)s,
|
|
''',
|
|
qtype = qtype,
|
|
abbrev = de_camel_case(name).upper(),
|
|
enum = c_fun(de_camel_case(key),False).upper())
|
|
|
|
ret += mcgen('''
|
|
};
|
|
''')
|
|
return ret
|
|
|
|
|
|
def generate_union(expr):
|
|
|
|
name = expr['union']
|
|
typeinfo = expr['data']
|
|
|
|
base = expr.get('base')
|
|
discriminator = expr.get('discriminator')
|
|
|
|
ret = mcgen('''
|
|
struct %(name)s
|
|
{
|
|
%(name)sKind kind;
|
|
union {
|
|
void *data;
|
|
''',
|
|
name=name)
|
|
|
|
for key in typeinfo:
|
|
ret += mcgen('''
|
|
%(c_type)s %(c_name)s;
|
|
''',
|
|
c_type=c_type(typeinfo[key]),
|
|
c_name=c_fun(key))
|
|
|
|
ret += mcgen('''
|
|
};
|
|
''')
|
|
|
|
if base:
|
|
base_fields = find_struct(base)['data']
|
|
if discriminator:
|
|
base_fields = base_fields.copy()
|
|
del base_fields[discriminator]
|
|
ret += generate_struct_fields(base_fields)
|
|
else:
|
|
assert not discriminator
|
|
|
|
ret += mcgen('''
|
|
};
|
|
''')
|
|
if discriminator == {}:
|
|
ret += mcgen('''
|
|
extern const int %(name)s_qtypes[];
|
|
''',
|
|
name=name)
|
|
|
|
|
|
return ret
|
|
|
|
def generate_type_cleanup_decl(name):
|
|
ret = mcgen('''
|
|
void qapi_free_%(type)s(%(c_type)s obj);
|
|
''',
|
|
c_type=c_type(name),type=name)
|
|
return ret
|
|
|
|
def generate_type_cleanup(name):
|
|
ret = mcgen('''
|
|
|
|
void qapi_free_%(type)s(%(c_type)s obj)
|
|
{
|
|
QapiDeallocVisitor *md;
|
|
Visitor *v;
|
|
|
|
if (!obj) {
|
|
return;
|
|
}
|
|
|
|
md = qapi_dealloc_visitor_new();
|
|
v = qapi_dealloc_get_visitor(md);
|
|
visit_type_%(type)s(v, &obj, NULL, NULL);
|
|
qapi_dealloc_visitor_cleanup(md);
|
|
}
|
|
''',
|
|
c_type=c_type(name),type=name)
|
|
return ret
|
|
|
|
|
|
try:
|
|
opts, args = getopt.gnu_getopt(sys.argv[1:], "chbp:o:",
|
|
["source", "header", "builtins",
|
|
"prefix=", "output-dir="])
|
|
except getopt.GetoptError, err:
|
|
print str(err)
|
|
sys.exit(1)
|
|
|
|
output_dir = ""
|
|
prefix = ""
|
|
c_file = 'qapi-types.c'
|
|
h_file = 'qapi-types.h'
|
|
|
|
do_c = False
|
|
do_h = False
|
|
do_builtins = False
|
|
|
|
for o, a in opts:
|
|
if o in ("-p", "--prefix"):
|
|
prefix = a
|
|
elif o in ("-o", "--output-dir"):
|
|
output_dir = a + "/"
|
|
elif o in ("-c", "--source"):
|
|
do_c = True
|
|
elif o in ("-h", "--header"):
|
|
do_h = True
|
|
elif o in ("-b", "--builtins"):
|
|
do_builtins = 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
|
|
|
|
try:
|
|
os.makedirs(output_dir)
|
|
except os.error, e:
|
|
if e.errno != errno.EEXIST:
|
|
raise
|
|
|
|
def maybe_open(really, name, opt):
|
|
if really:
|
|
return open(name, opt)
|
|
else:
|
|
import StringIO
|
|
return StringIO.StringIO()
|
|
|
|
fdef = maybe_open(do_c, c_file, 'w')
|
|
fdecl = maybe_open(do_h, h_file, 'w')
|
|
|
|
fdef.write(mcgen('''
|
|
/* AUTOMATICALLY GENERATED, DO NOT MODIFY */
|
|
|
|
/*
|
|
* deallocation functions for schema-defined QAPI types
|
|
*
|
|
* Copyright IBM, Corp. 2011
|
|
*
|
|
* Authors:
|
|
* Anthony Liguori <aliguori@us.ibm.com>
|
|
* Michael Roth <mdroth@linux.vnet.ibm.com>
|
|
*
|
|
* This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
|
|
* See the COPYING.LIB file in the top-level directory.
|
|
*
|
|
*/
|
|
|
|
#include "qapi/dealloc-visitor.h"
|
|
#include "%(prefix)sqapi-types.h"
|
|
#include "%(prefix)sqapi-visit.h"
|
|
|
|
''', prefix=prefix))
|
|
|
|
fdecl.write(mcgen('''
|
|
/* AUTOMATICALLY GENERATED, DO NOT MODIFY */
|
|
|
|
/*
|
|
* schema-defined QAPI types
|
|
*
|
|
* Copyright IBM, Corp. 2011
|
|
*
|
|
* Authors:
|
|
* Anthony Liguori <aliguori@us.ibm.com>
|
|
*
|
|
* This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
|
|
* See the COPYING.LIB file in the top-level directory.
|
|
*
|
|
*/
|
|
|
|
#ifndef %(guard)s
|
|
#define %(guard)s
|
|
|
|
#include <stdbool.h>
|
|
#include <stdint.h>
|
|
|
|
''',
|
|
guard=guardname(h_file)))
|
|
|
|
exprs = parse_schema(sys.stdin)
|
|
exprs = filter(lambda expr: not expr.has_key('gen'), exprs)
|
|
|
|
fdecl.write(guardstart("QAPI_TYPES_BUILTIN_STRUCT_DECL"))
|
|
for typename in builtin_types:
|
|
fdecl.write(generate_fwd_struct(typename, None, builtin_type=True))
|
|
fdecl.write(guardend("QAPI_TYPES_BUILTIN_STRUCT_DECL"))
|
|
|
|
for expr in exprs:
|
|
ret = "\n"
|
|
if expr.has_key('type'):
|
|
ret += generate_fwd_struct(expr['type'], expr['data'])
|
|
elif expr.has_key('enum'):
|
|
ret += generate_enum(expr['enum'], expr['data']) + "\n"
|
|
ret += generate_fwd_enum_struct(expr['enum'], expr['data'])
|
|
fdef.write(generate_enum_lookup(expr['enum'], expr['data']))
|
|
elif expr.has_key('union'):
|
|
ret += generate_fwd_struct(expr['union'], expr['data']) + "\n"
|
|
ret += generate_enum('%sKind' % expr['union'], expr['data'].keys())
|
|
fdef.write(generate_enum_lookup('%sKind' % expr['union'], expr['data'].keys()))
|
|
if expr.get('discriminator') == {}:
|
|
fdef.write(generate_anon_union_qtypes(expr))
|
|
else:
|
|
continue
|
|
fdecl.write(ret)
|
|
|
|
# to avoid header dependency hell, we always generate declarations
|
|
# for built-in types in our header files and simply guard them
|
|
fdecl.write(guardstart("QAPI_TYPES_BUILTIN_CLEANUP_DECL"))
|
|
for typename in builtin_types:
|
|
fdecl.write(generate_type_cleanup_decl(typename + "List"))
|
|
fdecl.write(guardend("QAPI_TYPES_BUILTIN_CLEANUP_DECL"))
|
|
|
|
# ...this doesn't work for cases where we link in multiple objects that
|
|
# have the functions defined, so we use -b option to provide control
|
|
# over these cases
|
|
if do_builtins:
|
|
fdef.write(guardstart("QAPI_TYPES_BUILTIN_CLEANUP_DEF"))
|
|
for typename in builtin_types:
|
|
fdef.write(generate_type_cleanup(typename + "List"))
|
|
fdef.write(guardend("QAPI_TYPES_BUILTIN_CLEANUP_DEF"))
|
|
|
|
for expr in exprs:
|
|
ret = "\n"
|
|
if expr.has_key('type'):
|
|
ret += generate_struct(expr['type'], "", expr['data']) + "\n"
|
|
ret += generate_type_cleanup_decl(expr['type'] + "List")
|
|
fdef.write(generate_type_cleanup(expr['type'] + "List") + "\n")
|
|
ret += generate_type_cleanup_decl(expr['type'])
|
|
fdef.write(generate_type_cleanup(expr['type']) + "\n")
|
|
elif expr.has_key('union'):
|
|
ret += generate_union(expr)
|
|
ret += generate_type_cleanup_decl(expr['union'] + "List")
|
|
fdef.write(generate_type_cleanup(expr['union'] + "List") + "\n")
|
|
ret += generate_type_cleanup_decl(expr['union'])
|
|
fdef.write(generate_type_cleanup(expr['union']) + "\n")
|
|
elif expr.has_key('enum'):
|
|
ret += generate_type_cleanup_decl(expr['enum'] + "List")
|
|
fdef.write(generate_type_cleanup(expr['enum'] + "List") + "\n")
|
|
else:
|
|
continue
|
|
fdecl.write(ret)
|
|
|
|
fdecl.write('''
|
|
#endif
|
|
''')
|
|
|
|
fdecl.flush()
|
|
fdecl.close()
|
|
|
|
fdef.flush()
|
|
fdef.close()
|