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qapi: Factor open_output(), close_output() out of generators

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Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Markus Armbruster 2015-04-02 14:46:39 +02:00
parent 16d80f6181
commit 12f8e1b9ff
5 changed files with 160 additions and 234 deletions
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101
scripts/qapi-visit.py
View file

@ -15,8 +15,6 @@
from ordereddict import OrderedDict
from qapi import *
import re
import os
import errno
implicit_structs = []
@ -374,8 +372,6 @@ void visit_type_%(name)s(Visitor *m, %(name)s *obj, const char *name, Error **er
''',
name=c_name(name))
c_file = 'qapi-visit.c'
h_file = 'qapi-visit.h'
do_builtins = False
(input_file, output_dir, do_c, do_h, prefix, opts) = \
@ -385,70 +381,51 @@ for o, a in opts:
if o in ("-b", "--builtins"):
do_builtins = True
c_file = output_dir + prefix + c_file
h_file = output_dir + prefix + h_file
c_comment = '''
/*
* schema-defined QAPI visitor functions
*
* 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.
*
*/
'''
h_comment = '''
/*
* schema-defined QAPI visitor functions
*
* 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.
*
*/
'''
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, fdecl) = open_output(output_dir, do_c, do_h, prefix,
'qapi-visit.c', 'qapi-visit.h',
c_comment, h_comment)
fdef.write(mcgen('''
/* THIS FILE IS AUTOMATICALLY GENERATED, DO NOT MODIFY */
/*
* schema-defined QAPI visitor functions
*
* 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.
*
*/
#include "qemu-common.h"
#include "%(header)s"
#include "%(prefix)sqapi-visit.h"
''',
header=basename(h_file)))
prefix = prefix))
fdecl.write(mcgen('''
/* THIS FILE IS AUTOMATICALLY GENERATED, DO NOT MODIFY */
/*
* schema-defined QAPI visitor functions
*
* 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 "qapi/visitor.h"
#include "%(prefix)sqapi-types.h"
''',
prefix=prefix, guard=guardname(h_file)))
prefix=prefix))
exprs = parse_schema(input_file)
@ -504,12 +481,4 @@ for expr in exprs:
ret += generate_enum_declaration(expr['enum'], expr['data'])
fdecl.write(ret)
fdecl.write('''
#endif
''')
fdecl.flush()
fdecl.close()
fdef.flush()
fdef.close()
close_output(fdef, fdecl)