target/rx: CPU definitions
[qemu.git] / qapi / qapi-visit-core.c
1 /*
2 * Core Definitions for QAPI Visitor Classes
3 *
4 * Copyright (C) 2012-2016 Red Hat, Inc.
5 * Copyright IBM, Corp. 2011
6 *
7 * Authors:
8 * Anthony Liguori <aliguori@us.ibm.com>
9 *
10 * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
11 * See the COPYING.LIB file in the top-level directory.
12 *
13 */
14
15 #include "qemu/osdep.h"
16 #include "qapi/error.h"
17 #include "qapi/qmp/qerror.h"
18 #include "qapi/visitor.h"
19 #include "qapi/visitor-impl.h"
20 #include "trace.h"
21
22 void visit_complete(Visitor *v, void *opaque)
23 {
24 assert(v->type != VISITOR_OUTPUT || v->complete);
25 trace_visit_complete(v, opaque);
26 if (v->complete) {
27 v->complete(v, opaque);
28 }
29 }
30
31 void visit_free(Visitor *v)
32 {
33 trace_visit_free(v);
34 if (v) {
35 v->free(v);
36 }
37 }
38
39 void visit_start_struct(Visitor *v, const char *name, void **obj,
40 size_t size, Error **errp)
41 {
42 Error *err = NULL;
43
44 trace_visit_start_struct(v, name, obj, size);
45 if (obj) {
46 assert(size);
47 assert(!(v->type & VISITOR_OUTPUT) || *obj);
48 }
49 v->start_struct(v, name, obj, size, &err);
50 if (obj && (v->type & VISITOR_INPUT)) {
51 assert(!err != !*obj);
52 }
53 error_propagate(errp, err);
54 }
55
56 void visit_check_struct(Visitor *v, Error **errp)
57 {
58 trace_visit_check_struct(v);
59 if (v->check_struct) {
60 v->check_struct(v, errp);
61 }
62 }
63
64 void visit_end_struct(Visitor *v, void **obj)
65 {
66 trace_visit_end_struct(v, obj);
67 v->end_struct(v, obj);
68 }
69
70 void visit_start_list(Visitor *v, const char *name, GenericList **list,
71 size_t size, Error **errp)
72 {
73 Error *err = NULL;
74
75 assert(!list || size >= sizeof(GenericList));
76 trace_visit_start_list(v, name, list, size);
77 v->start_list(v, name, list, size, &err);
78 if (list && (v->type & VISITOR_INPUT)) {
79 assert(!(err && *list));
80 }
81 error_propagate(errp, err);
82 }
83
84 GenericList *visit_next_list(Visitor *v, GenericList *tail, size_t size)
85 {
86 assert(tail && size >= sizeof(GenericList));
87 trace_visit_next_list(v, tail, size);
88 return v->next_list(v, tail, size);
89 }
90
91 void visit_check_list(Visitor *v, Error **errp)
92 {
93 trace_visit_check_list(v);
94 if (v->check_list) {
95 v->check_list(v, errp);
96 }
97 }
98
99 void visit_end_list(Visitor *v, void **obj)
100 {
101 trace_visit_end_list(v, obj);
102 v->end_list(v, obj);
103 }
104
105 void visit_start_alternate(Visitor *v, const char *name,
106 GenericAlternate **obj, size_t size,
107 Error **errp)
108 {
109 Error *err = NULL;
110
111 assert(obj && size >= sizeof(GenericAlternate));
112 assert(!(v->type & VISITOR_OUTPUT) || *obj);
113 trace_visit_start_alternate(v, name, obj, size);
114 if (v->start_alternate) {
115 v->start_alternate(v, name, obj, size, &err);
116 }
117 if (v->type & VISITOR_INPUT) {
118 assert(v->start_alternate && !err != !*obj);
119 }
120 error_propagate(errp, err);
121 }
122
123 void visit_end_alternate(Visitor *v, void **obj)
124 {
125 trace_visit_end_alternate(v, obj);
126 if (v->end_alternate) {
127 v->end_alternate(v, obj);
128 }
129 }
130
131 bool visit_optional(Visitor *v, const char *name, bool *present)
132 {
133 trace_visit_optional(v, name, present);
134 if (v->optional) {
135 v->optional(v, name, present);
136 }
137 return *present;
138 }
139
140 bool visit_is_input(Visitor *v)
141 {
142 return v->type == VISITOR_INPUT;
143 }
144
145 void visit_type_int(Visitor *v, const char *name, int64_t *obj, Error **errp)
146 {
147 assert(obj);
148 trace_visit_type_int(v, name, obj);
149 v->type_int64(v, name, obj, errp);
150 }
151
152 static void visit_type_uintN(Visitor *v, uint64_t *obj, const char *name,
153 uint64_t max, const char *type, Error **errp)
154 {
155 Error *err = NULL;
156 uint64_t value = *obj;
157
158 v->type_uint64(v, name, &value, &err);
159 if (err) {
160 error_propagate(errp, err);
161 } else if (value > max) {
162 error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
163 name ? name : "null", type);
164 } else {
165 *obj = value;
166 }
167 }
168
169 void visit_type_uint8(Visitor *v, const char *name, uint8_t *obj,
170 Error **errp)
171 {
172 uint64_t value;
173
174 trace_visit_type_uint8(v, name, obj);
175 value = *obj;
176 visit_type_uintN(v, &value, name, UINT8_MAX, "uint8_t", errp);
177 *obj = value;
178 }
179
180 void visit_type_uint16(Visitor *v, const char *name, uint16_t *obj,
181 Error **errp)
182 {
183 uint64_t value;
184
185 trace_visit_type_uint16(v, name, obj);
186 value = *obj;
187 visit_type_uintN(v, &value, name, UINT16_MAX, "uint16_t", errp);
188 *obj = value;
189 }
190
191 void visit_type_uint32(Visitor *v, const char *name, uint32_t *obj,
192 Error **errp)
193 {
194 uint64_t value;
195
196 trace_visit_type_uint32(v, name, obj);
197 value = *obj;
198 visit_type_uintN(v, &value, name, UINT32_MAX, "uint32_t", errp);
199 *obj = value;
200 }
201
202 void visit_type_uint64(Visitor *v, const char *name, uint64_t *obj,
203 Error **errp)
204 {
205 assert(obj);
206 trace_visit_type_uint64(v, name, obj);
207 v->type_uint64(v, name, obj, errp);
208 }
209
210 static void visit_type_intN(Visitor *v, int64_t *obj, const char *name,
211 int64_t min, int64_t max, const char *type,
212 Error **errp)
213 {
214 Error *err = NULL;
215 int64_t value = *obj;
216
217 v->type_int64(v, name, &value, &err);
218 if (err) {
219 error_propagate(errp, err);
220 } else if (value < min || value > max) {
221 error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
222 name ? name : "null", type);
223 } else {
224 *obj = value;
225 }
226 }
227
228 void visit_type_int8(Visitor *v, const char *name, int8_t *obj, Error **errp)
229 {
230 int64_t value;
231
232 trace_visit_type_int8(v, name, obj);
233 value = *obj;
234 visit_type_intN(v, &value, name, INT8_MIN, INT8_MAX, "int8_t", errp);
235 *obj = value;
236 }
237
238 void visit_type_int16(Visitor *v, const char *name, int16_t *obj,
239 Error **errp)
240 {
241 int64_t value;
242
243 trace_visit_type_int16(v, name, obj);
244 value = *obj;
245 visit_type_intN(v, &value, name, INT16_MIN, INT16_MAX, "int16_t", errp);
246 *obj = value;
247 }
248
249 void visit_type_int32(Visitor *v, const char *name, int32_t *obj,
250 Error **errp)
251 {
252 int64_t value;
253
254 trace_visit_type_int32(v, name, obj);
255 value = *obj;
256 visit_type_intN(v, &value, name, INT32_MIN, INT32_MAX, "int32_t", errp);
257 *obj = value;
258 }
259
260 void visit_type_int64(Visitor *v, const char *name, int64_t *obj,
261 Error **errp)
262 {
263 assert(obj);
264 trace_visit_type_int64(v, name, obj);
265 v->type_int64(v, name, obj, errp);
266 }
267
268 void visit_type_size(Visitor *v, const char *name, uint64_t *obj,
269 Error **errp)
270 {
271 assert(obj);
272 trace_visit_type_size(v, name, obj);
273 if (v->type_size) {
274 v->type_size(v, name, obj, errp);
275 } else {
276 v->type_uint64(v, name, obj, errp);
277 }
278 }
279
280 void visit_type_bool(Visitor *v, const char *name, bool *obj, Error **errp)
281 {
282 assert(obj);
283 trace_visit_type_bool(v, name, obj);
284 v->type_bool(v, name, obj, errp);
285 }
286
287 void visit_type_str(Visitor *v, const char *name, char **obj, Error **errp)
288 {
289 Error *err = NULL;
290
291 assert(obj);
292 /* TODO: Fix callers to not pass NULL when they mean "", so that we
293 * can enable:
294 assert(!(v->type & VISITOR_OUTPUT) || *obj);
295 */
296 trace_visit_type_str(v, name, obj);
297 v->type_str(v, name, obj, &err);
298 if (v->type & VISITOR_INPUT) {
299 assert(!err != !*obj);
300 }
301 error_propagate(errp, err);
302 }
303
304 void visit_type_number(Visitor *v, const char *name, double *obj,
305 Error **errp)
306 {
307 assert(obj);
308 trace_visit_type_number(v, name, obj);
309 v->type_number(v, name, obj, errp);
310 }
311
312 void visit_type_any(Visitor *v, const char *name, QObject **obj, Error **errp)
313 {
314 Error *err = NULL;
315
316 assert(obj);
317 assert(v->type != VISITOR_OUTPUT || *obj);
318 trace_visit_type_any(v, name, obj);
319 v->type_any(v, name, obj, &err);
320 if (v->type == VISITOR_INPUT) {
321 assert(!err != !*obj);
322 }
323 error_propagate(errp, err);
324 }
325
326 void visit_type_null(Visitor *v, const char *name, QNull **obj,
327 Error **errp)
328 {
329 trace_visit_type_null(v, name, obj);
330 v->type_null(v, name, obj, errp);
331 }
332
333 static void output_type_enum(Visitor *v, const char *name, int *obj,
334 const QEnumLookup *lookup, Error **errp)
335 {
336 int value = *obj;
337 char *enum_str;
338
339 /*
340 * TODO why is this an error, not an assertion? If assertion:
341 * delete, and rely on qapi_enum_lookup()
342 */
343 if (value < 0 || value >= lookup->size) {
344 error_setg(errp, QERR_INVALID_PARAMETER, name ? name : "null");
345 return;
346 }
347
348 enum_str = (char *)qapi_enum_lookup(lookup, value);
349 visit_type_str(v, name, &enum_str, errp);
350 }
351
352 static void input_type_enum(Visitor *v, const char *name, int *obj,
353 const QEnumLookup *lookup, Error **errp)
354 {
355 Error *local_err = NULL;
356 int64_t value;
357 char *enum_str;
358
359 visit_type_str(v, name, &enum_str, &local_err);
360 if (local_err) {
361 error_propagate(errp, local_err);
362 return;
363 }
364
365 value = qapi_enum_parse(lookup, enum_str, -1, NULL);
366 if (value < 0) {
367 error_setg(errp, QERR_INVALID_PARAMETER, enum_str);
368 g_free(enum_str);
369 return;
370 }
371
372 g_free(enum_str);
373 *obj = value;
374 }
375
376 void visit_type_enum(Visitor *v, const char *name, int *obj,
377 const QEnumLookup *lookup, Error **errp)
378 {
379 assert(obj && lookup);
380 trace_visit_type_enum(v, name, obj);
381 switch (v->type) {
382 case VISITOR_INPUT:
383 input_type_enum(v, name, obj, lookup, errp);
384 break;
385 case VISITOR_OUTPUT:
386 output_type_enum(v, name, obj, lookup, errp);
387 break;
388 case VISITOR_CLONE:
389 /* nothing further to do, scalar value was already copied by
390 * g_memdup() during visit_start_*() */
391 break;
392 case VISITOR_DEALLOC:
393 /* nothing to deallocate for a scalar */
394 break;
395 }
396 }