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fb3182ce MR |
1 | # |
2 | # QAPI types generator | |
3 | # | |
4 | # Copyright IBM, Corp. 2011 | |
5 | # | |
6 | # Authors: | |
7 | # Anthony Liguori <aliguori@us.ibm.com> | |
8 | # | |
9 | # This work is licensed under the terms of the GNU GPLv2. | |
10 | # See the COPYING.LIB file in the top-level directory. | |
11 | ||
12 | from ordereddict import OrderedDict | |
13 | from qapi import * | |
14 | import sys | |
15 | import os | |
16 | import getopt | |
17 | import errno | |
18 | ||
19 | def generate_fwd_struct(name, members): | |
20 | return mcgen(''' | |
21 | typedef struct %(name)s %(name)s; | |
22 | ||
23 | typedef struct %(name)sList | |
24 | { | |
25 | %(name)s *value; | |
26 | struct %(name)sList *next; | |
27 | } %(name)sList; | |
28 | ''', | |
29 | name=name) | |
30 | ||
31 | def generate_struct(structname, fieldname, members): | |
32 | ret = mcgen(''' | |
33 | struct %(name)s | |
34 | { | |
35 | ''', | |
36 | name=structname) | |
37 | ||
38 | for argname, argentry, optional, structured in parse_args(members): | |
39 | if optional: | |
40 | ret += mcgen(''' | |
41 | bool has_%(c_name)s; | |
42 | ''', | |
43 | c_name=c_var(argname)) | |
44 | if structured: | |
45 | push_indent() | |
46 | ret += generate_struct("", argname, argentry) | |
47 | pop_indent() | |
48 | else: | |
49 | ret += mcgen(''' | |
50 | %(c_type)s %(c_name)s; | |
51 | ''', | |
52 | c_type=c_type(argentry), c_name=c_var(argname)) | |
53 | ||
54 | if len(fieldname): | |
55 | fieldname = " " + fieldname | |
56 | ret += mcgen(''' | |
57 | }%(field)s; | |
58 | ''', | |
59 | field=fieldname) | |
60 | ||
61 | return ret | |
62 | ||
63 | def generate_enum_lookup(name, values): | |
64 | ret = mcgen(''' | |
65 | const char *%(name)s_lookup[] = { | |
66 | ''', | |
67 | name=name) | |
68 | i = 0 | |
69 | for value in values: | |
70 | ret += mcgen(''' | |
71 | "%(value)s", | |
72 | ''', | |
ac4ff701 | 73 | value=value) |
fb3182ce MR |
74 | |
75 | ret += mcgen(''' | |
76 | NULL, | |
77 | }; | |
78 | ||
79 | ''') | |
80 | return ret | |
81 | ||
f01f594b LC |
82 | def generate_enum_name(name): |
83 | if name.isupper(): | |
84 | return c_fun(name) | |
85 | new_name = '' | |
86 | for c in c_fun(name): | |
87 | if c.isupper(): | |
88 | new_name += '_' | |
89 | new_name += c | |
90 | return new_name.lstrip('_').upper() | |
91 | ||
fb3182ce MR |
92 | def generate_enum(name, values): |
93 | lookup_decl = mcgen(''' | |
94 | extern const char *%(name)s_lookup[]; | |
95 | ''', | |
96 | name=name) | |
97 | ||
98 | enum_decl = mcgen(''' | |
99 | typedef enum %(name)s | |
100 | { | |
101 | ''', | |
102 | name=name) | |
103 | ||
303b54b1 LC |
104 | # append automatically generated _MAX value |
105 | enum_values = values + [ 'MAX' ] | |
106 | ||
fb3182ce | 107 | i = 0 |
303b54b1 | 108 | for value in enum_values: |
fb3182ce MR |
109 | enum_decl += mcgen(''' |
110 | %(abbrev)s_%(value)s = %(i)d, | |
111 | ''', | |
112 | abbrev=de_camel_case(name).upper(), | |
f01f594b | 113 | value=generate_enum_name(value), |
fb3182ce MR |
114 | i=i) |
115 | i += 1 | |
116 | ||
117 | enum_decl += mcgen(''' | |
118 | } %(name)s; | |
119 | ''', | |
120 | name=name) | |
121 | ||
122 | return lookup_decl + enum_decl | |
123 | ||
124 | def generate_union(name, typeinfo): | |
125 | ret = mcgen(''' | |
126 | struct %(name)s | |
127 | { | |
128 | %(name)sKind kind; | |
129 | union { | |
dc8fb6df | 130 | void *data; |
fb3182ce MR |
131 | ''', |
132 | name=name) | |
133 | ||
134 | for key in typeinfo: | |
135 | ret += mcgen(''' | |
136 | %(c_type)s %(c_name)s; | |
137 | ''', | |
138 | c_type=c_type(typeinfo[key]), | |
c9da228b | 139 | c_name=c_fun(key)) |
fb3182ce MR |
140 | |
141 | ret += mcgen(''' | |
142 | }; | |
143 | }; | |
144 | ''') | |
145 | ||
146 | return ret | |
147 | ||
148 | def generate_type_cleanup_decl(name): | |
149 | ret = mcgen(''' | |
150 | void qapi_free_%(type)s(%(c_type)s obj); | |
151 | ''', | |
152 | c_type=c_type(name),type=name) | |
153 | return ret | |
154 | ||
155 | def generate_type_cleanup(name): | |
156 | ret = mcgen(''' | |
157 | void qapi_free_%(type)s(%(c_type)s obj) | |
158 | { | |
159 | QapiDeallocVisitor *md; | |
160 | Visitor *v; | |
161 | ||
162 | if (!obj) { | |
163 | return; | |
164 | } | |
165 | ||
166 | md = qapi_dealloc_visitor_new(); | |
167 | v = qapi_dealloc_get_visitor(md); | |
168 | visit_type_%(type)s(v, &obj, NULL, NULL); | |
169 | qapi_dealloc_visitor_cleanup(md); | |
170 | } | |
171 | ''', | |
172 | c_type=c_type(name),type=name) | |
173 | return ret | |
174 | ||
175 | ||
176 | try: | |
8d3bc517 AK |
177 | opts, args = getopt.gnu_getopt(sys.argv[1:], "chp:o:", |
178 | ["source", "header", "prefix=", "output-dir="]) | |
fb3182ce MR |
179 | except getopt.GetoptError, err: |
180 | print str(err) | |
181 | sys.exit(1) | |
182 | ||
183 | output_dir = "" | |
184 | prefix = "" | |
185 | c_file = 'qapi-types.c' | |
186 | h_file = 'qapi-types.h' | |
187 | ||
8d3bc517 AK |
188 | do_c = False |
189 | do_h = False | |
190 | ||
fb3182ce MR |
191 | for o, a in opts: |
192 | if o in ("-p", "--prefix"): | |
193 | prefix = a | |
194 | elif o in ("-o", "--output-dir"): | |
195 | output_dir = a + "/" | |
8d3bc517 | 196 | elif o in ("-c", "--source"): |
8d3bc517 | 197 | do_c = True |
19bf7c87 AK |
198 | elif o in ("-h", "--header"): |
199 | do_h = True | |
8d3bc517 AK |
200 | |
201 | if not do_c and not do_h: | |
202 | do_c = True | |
203 | do_h = True | |
fb3182ce MR |
204 | |
205 | c_file = output_dir + prefix + c_file | |
206 | h_file = output_dir + prefix + h_file | |
207 | ||
208 | try: | |
209 | os.makedirs(output_dir) | |
210 | except os.error, e: | |
211 | if e.errno != errno.EEXIST: | |
212 | raise | |
213 | ||
8d3bc517 | 214 | def maybe_open(really, name, opt): |
8d3bc517 AK |
215 | if really: |
216 | return open(name, opt) | |
19bf7c87 AK |
217 | else: |
218 | import StringIO | |
219 | return StringIO.StringIO() | |
8d3bc517 AK |
220 | |
221 | fdef = maybe_open(do_c, c_file, 'w') | |
222 | fdecl = maybe_open(do_h, h_file, 'w') | |
fb3182ce MR |
223 | |
224 | fdef.write(mcgen(''' | |
225 | /* AUTOMATICALLY GENERATED, DO NOT MODIFY */ | |
226 | ||
227 | /* | |
228 | * deallocation functions for schema-defined QAPI types | |
229 | * | |
230 | * Copyright IBM, Corp. 2011 | |
231 | * | |
232 | * Authors: | |
233 | * Anthony Liguori <aliguori@us.ibm.com> | |
234 | * Michael Roth <mdroth@linux.vnet.ibm.com> | |
235 | * | |
236 | * This work is licensed under the terms of the GNU LGPL, version 2.1 or later. | |
237 | * See the COPYING.LIB file in the top-level directory. | |
238 | * | |
239 | */ | |
240 | ||
241 | #include "qapi/qapi-dealloc-visitor.h" | |
242 | #include "%(prefix)sqapi-types.h" | |
243 | #include "%(prefix)sqapi-visit.h" | |
244 | ||
245 | ''', prefix=prefix)) | |
246 | ||
247 | fdecl.write(mcgen(''' | |
248 | /* AUTOMATICALLY GENERATED, DO NOT MODIFY */ | |
249 | ||
250 | /* | |
251 | * schema-defined QAPI types | |
252 | * | |
253 | * Copyright IBM, Corp. 2011 | |
254 | * | |
255 | * Authors: | |
256 | * Anthony Liguori <aliguori@us.ibm.com> | |
257 | * | |
258 | * This work is licensed under the terms of the GNU LGPL, version 2.1 or later. | |
259 | * See the COPYING.LIB file in the top-level directory. | |
260 | * | |
261 | */ | |
262 | ||
263 | #ifndef %(guard)s | |
264 | #define %(guard)s | |
265 | ||
b68a8472 LC |
266 | #include "qemu-common.h" |
267 | ||
fb3182ce MR |
268 | ''', |
269 | guard=guardname(h_file))) | |
270 | ||
271 | exprs = parse_schema(sys.stdin) | |
5dbee474 | 272 | exprs = filter(lambda expr: not expr.has_key('gen'), exprs) |
fb3182ce MR |
273 | |
274 | for expr in exprs: | |
275 | ret = "\n" | |
276 | if expr.has_key('type'): | |
277 | ret += generate_fwd_struct(expr['type'], expr['data']) | |
278 | elif expr.has_key('enum'): | |
279 | ret += generate_enum(expr['enum'], expr['data']) | |
280 | fdef.write(generate_enum_lookup(expr['enum'], expr['data'])) | |
281 | elif expr.has_key('union'): | |
282 | ret += generate_fwd_struct(expr['union'], expr['data']) + "\n" | |
283 | ret += generate_enum('%sKind' % expr['union'], expr['data'].keys()) | |
dc8fb6df | 284 | fdef.write(generate_enum_lookup('%sKind' % expr['union'], expr['data'].keys())) |
fb3182ce MR |
285 | else: |
286 | continue | |
287 | fdecl.write(ret) | |
288 | ||
289 | for expr in exprs: | |
290 | ret = "\n" | |
291 | if expr.has_key('type'): | |
292 | ret += generate_struct(expr['type'], "", expr['data']) + "\n" | |
75b96aca MR |
293 | ret += generate_type_cleanup_decl(expr['type'] + "List") |
294 | fdef.write(generate_type_cleanup(expr['type'] + "List") + "\n") | |
fb3182ce MR |
295 | ret += generate_type_cleanup_decl(expr['type']) |
296 | fdef.write(generate_type_cleanup(expr['type']) + "\n") | |
297 | elif expr.has_key('union'): | |
298 | ret += generate_union(expr['union'], expr['data']) | |
dc8fb6df PB |
299 | ret += generate_type_cleanup_decl(expr['union'] + "List") |
300 | fdef.write(generate_type_cleanup(expr['union'] + "List") + "\n") | |
301 | ret += generate_type_cleanup_decl(expr['union']) | |
302 | fdef.write(generate_type_cleanup(expr['union']) + "\n") | |
fb3182ce MR |
303 | else: |
304 | continue | |
305 | fdecl.write(ret) | |
306 | ||
307 | fdecl.write(''' | |
308 | #endif | |
309 | ''') | |
310 | ||
311 | fdecl.flush() | |
312 | fdecl.close() | |
776574d6 AL |
313 | |
314 | fdef.flush() | |
315 | fdef.close() |