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

Browse source 
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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75
scripts/qapi-event.py
View file

@ -11,8 +11,6 @@
from ordereddict import OrderedDict
from qapi import *
import os
import errno
def _generate_event_api_name(event_name, params):
api_name = "void qapi_event_send_%s(" % c_name(event_name).lower();
@ -214,36 +212,9 @@ const char *%(event_enum_name)s_lookup[] = {
''')
return ret
# Start the real job
c_file = 'qapi-event.c'
h_file = 'qapi-event.h'
(input_file, output_dir, do_c, do_h, prefix, dummy) = parse_command_line()
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('''
/* THIS FILE IS AUTOMATICALLY GENERATED, DO NOT MODIFY */
c_comment = '''
/*
* schema-defined QAPI event functions
*
@ -256,19 +227,8 @@ fdef.write(mcgen('''
* See the COPYING.LIB file in the top-level directory.
*
*/
#include "qemu-common.h"
#include "%(header)s"
#include "%(prefix)sqapi-visit.h"
#include "qapi/qmp-output-visitor.h"
#include "qapi/qmp-event.h"
''',
prefix=prefix, header=basename(h_file)))
fdecl.write(mcgen('''
/* THIS FILE IS AUTOMATICALLY GENERATED, DO NOT MODIFY */
'''
h_comment = '''
/*
* schema-defined QAPI event functions
*
@ -281,16 +241,29 @@ fdecl.write(mcgen('''
* See the COPYING.LIB file in the top-level directory.
*
*/
'''
#ifndef %(guard)s
#define %(guard)s
(fdef, fdecl) = open_output(output_dir, do_c, do_h, prefix,
'qapi-event.c', 'qapi-event.h',
c_comment, h_comment)
fdef.write(mcgen('''
#include "qemu-common.h"
#include "%(prefix)sqapi-event.h"
#include "%(prefix)sqapi-visit.h"
#include "qapi/qmp-output-visitor.h"
#include "qapi/qmp-event.h"
''',
prefix=prefix))
fdecl.write(mcgen('''
#include "qapi/error.h"
#include "qapi/qmp/qdict.h"
#include "%(prefix)sqapi-types.h"
''',
prefix=prefix, guard=guardname(h_file)))
prefix=prefix))
exprs = parse_schema(input_file)
@ -323,12 +296,4 @@ fdecl.write(ret)
ret = generate_event_enum_lookup(event_enum_name, event_enum_strings)
fdef.write(ret)
fdecl.write('''
#endif
''')
fdecl.flush()
fdecl.close()
fdef.flush()
fdef.close()
close_output(fdef, fdecl)