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15#include "qemu/osdep.h"
16#include "qapi/error.h"
17#include "qemu-common.h"
18#include "qapi/qmp/qobject.h"
19#include "qapi/qmp/qerror.h"
20#include "qapi/visitor.h"
21#include "qapi/visitor-impl.h"
22#include "trace.h"
23
24void visit_complete(Visitor *v, void *opaque)
25{
26 assert(v->type != VISITOR_OUTPUT || v->complete);
27 trace_visit_complete(v, opaque);
28 if (v->complete) {
29 v->complete(v, opaque);
30 }
31}
32
33void visit_free(Visitor *v)
34{
35 trace_visit_free(v);
36 if (v) {
37 v->free(v);
38 }
39}
40
41void visit_start_struct(Visitor *v, const char *name, void **obj,
42 size_t size, Error **errp)
43{
44 Error *err = NULL;
45
46 trace_visit_start_struct(v, name, obj, size);
47 if (obj) {
48 assert(size);
49 assert(!(v->type & VISITOR_OUTPUT) || *obj);
50 }
51 v->start_struct(v, name, obj, size, &err);
52 if (obj && (v->type & VISITOR_INPUT)) {
53 assert(!err != !*obj);
54 }
55 error_propagate(errp, err);
56}
57
58void visit_check_struct(Visitor *v, Error **errp)
59{
60 trace_visit_check_struct(v);
61 if (v->check_struct) {
62 v->check_struct(v, errp);
63 }
64}
65
66void visit_end_struct(Visitor *v, void **obj)
67{
68 trace_visit_end_struct(v, obj);
69 v->end_struct(v, obj);
70}
71
72void visit_start_list(Visitor *v, const char *name, GenericList **list,
73 size_t size, Error **errp)
74{
75 Error *err = NULL;
76
77 assert(!list || size >= sizeof(GenericList));
78 trace_visit_start_list(v, name, list, size);
79 v->start_list(v, name, list, size, &err);
80 if (list && (v->type & VISITOR_INPUT)) {
81 assert(!(err && *list));
82 }
83 error_propagate(errp, err);
84}
85
86GenericList *visit_next_list(Visitor *v, GenericList *tail, size_t size)
87{
88 assert(tail && size >= sizeof(GenericList));
89 trace_visit_next_list(v, tail, size);
90 return v->next_list(v, tail, size);
91}
92
93void visit_check_list(Visitor *v, Error **errp)
94{
95 trace_visit_check_list(v);
96 if (v->check_list) {
97 v->check_list(v, errp);
98 }
99}
100
101void visit_end_list(Visitor *v, void **obj)
102{
103 trace_visit_end_list(v, obj);
104 v->end_list(v, obj);
105}
106
107void visit_start_alternate(Visitor *v, const char *name,
108 GenericAlternate **obj, size_t size,
109 Error **errp)
110{
111 Error *err = NULL;
112
113 assert(obj && size >= sizeof(GenericAlternate));
114 assert(!(v->type & VISITOR_OUTPUT) || *obj);
115 trace_visit_start_alternate(v, name, obj, size);
116 if (v->start_alternate) {
117 v->start_alternate(v, name, obj, size, &err);
118 }
119 if (v->type & VISITOR_INPUT) {
120 assert(v->start_alternate && !err != !*obj);
121 }
122 error_propagate(errp, err);
123}
124
125void visit_end_alternate(Visitor *v, void **obj)
126{
127 trace_visit_end_alternate(v, obj);
128 if (v->end_alternate) {
129 v->end_alternate(v, obj);
130 }
131}
132
133bool visit_optional(Visitor *v, const char *name, bool *present)
134{
135 trace_visit_optional(v, name, present);
136 if (v->optional) {
137 v->optional(v, name, present);
138 }
139 return *present;
140}
141
142bool visit_is_input(Visitor *v)
143{
144 return v->type == VISITOR_INPUT;
145}
146
147void visit_type_int(Visitor *v, const char *name, int64_t *obj, Error **errp)
148{
149 assert(obj);
150 trace_visit_type_int(v, name, obj);
151 v->type_int64(v, name, obj, errp);
152}
153
154static void visit_type_uintN(Visitor *v, uint64_t *obj, const char *name,
155 uint64_t max, const char *type, Error **errp)
156{
157 Error *err = NULL;
158 uint64_t value = *obj;
159
160 v->type_uint64(v, name, &value, &err);
161 if (err) {
162 error_propagate(errp, err);
163 } else if (value > max) {
164 error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
165 name ? name : "null", type);
166 } else {
167 *obj = value;
168 }
169}
170
171void visit_type_uint8(Visitor *v, const char *name, uint8_t *obj,
172 Error **errp)
173{
174 uint64_t value;
175
176 trace_visit_type_uint8(v, name, obj);
177 value = *obj;
178 visit_type_uintN(v, &value, name, UINT8_MAX, "uint8_t", errp);
179 *obj = value;
180}
181
182void visit_type_uint16(Visitor *v, const char *name, uint16_t *obj,
183 Error **errp)
184{
185 uint64_t value;
186
187 trace_visit_type_uint16(v, name, obj);
188 value = *obj;
189 visit_type_uintN(v, &value, name, UINT16_MAX, "uint16_t", errp);
190 *obj = value;
191}
192
193void visit_type_uint32(Visitor *v, const char *name, uint32_t *obj,
194 Error **errp)
195{
196 uint64_t value;
197
198 trace_visit_type_uint32(v, name, obj);
199 value = *obj;
200 visit_type_uintN(v, &value, name, UINT32_MAX, "uint32_t", errp);
201 *obj = value;
202}
203
204void visit_type_uint64(Visitor *v, const char *name, uint64_t *obj,
205 Error **errp)
206{
207 assert(obj);
208 trace_visit_type_uint64(v, name, obj);
209 v->type_uint64(v, name, obj, errp);
210}
211
212static void visit_type_intN(Visitor *v, int64_t *obj, const char *name,
213 int64_t min, int64_t max, const char *type,
214 Error **errp)
215{
216 Error *err = NULL;
217 int64_t value = *obj;
218
219 v->type_int64(v, name, &value, &err);
220 if (err) {
221 error_propagate(errp, err);
222 } else if (value < min || value > max) {
223 error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
224 name ? name : "null", type);
225 } else {
226 *obj = value;
227 }
228}
229
230void visit_type_int8(Visitor *v, const char *name, int8_t *obj, Error **errp)
231{
232 int64_t value;
233
234 trace_visit_type_int8(v, name, obj);
235 value = *obj;
236 visit_type_intN(v, &value, name, INT8_MIN, INT8_MAX, "int8_t", errp);
237 *obj = value;
238}
239
240void visit_type_int16(Visitor *v, const char *name, int16_t *obj,
241 Error **errp)
242{
243 int64_t value;
244
245 trace_visit_type_int16(v, name, obj);
246 value = *obj;
247 visit_type_intN(v, &value, name, INT16_MIN, INT16_MAX, "int16_t", errp);
248 *obj = value;
249}
250
251void visit_type_int32(Visitor *v, const char *name, int32_t *obj,
252 Error **errp)
253{
254 int64_t value;
255
256 trace_visit_type_int32(v, name, obj);
257 value = *obj;
258 visit_type_intN(v, &value, name, INT32_MIN, INT32_MAX, "int32_t", errp);
259 *obj = value;
260}
261
262void visit_type_int64(Visitor *v, const char *name, int64_t *obj,
263 Error **errp)
264{
265 assert(obj);
266 trace_visit_type_int64(v, name, obj);
267 v->type_int64(v, name, obj, errp);
268}
269
270void visit_type_size(Visitor *v, const char *name, uint64_t *obj,
271 Error **errp)
272{
273 assert(obj);
274 trace_visit_type_size(v, name, obj);
275 if (v->type_size) {
276 v->type_size(v, name, obj, errp);
277 } else {
278 v->type_uint64(v, name, obj, errp);
279 }
280}
281
282void visit_type_bool(Visitor *v, const char *name, bool *obj, Error **errp)
283{
284 assert(obj);
285 trace_visit_type_bool(v, name, obj);
286 v->type_bool(v, name, obj, errp);
287}
288
289void visit_type_str(Visitor *v, const char *name, char **obj, Error **errp)
290{
291 Error *err = NULL;
292
293 assert(obj);
294
295
296
297
298 trace_visit_type_str(v, name, obj);
299 v->type_str(v, name, obj, &err);
300 if (v->type & VISITOR_INPUT) {
301 assert(!err != !*obj);
302 }
303 error_propagate(errp, err);
304}
305
306void visit_type_number(Visitor *v, const char *name, double *obj,
307 Error **errp)
308{
309 assert(obj);
310 trace_visit_type_number(v, name, obj);
311 v->type_number(v, name, obj, errp);
312}
313
314void visit_type_any(Visitor *v, const char *name, QObject **obj, Error **errp)
315{
316 Error *err = NULL;
317
318 assert(obj);
319 assert(v->type != VISITOR_OUTPUT || *obj);
320 trace_visit_type_any(v, name, obj);
321 v->type_any(v, name, obj, &err);
322 if (v->type == VISITOR_INPUT) {
323 assert(!err != !*obj);
324 }
325 error_propagate(errp, err);
326}
327
328void visit_type_null(Visitor *v, const char *name, QNull **obj,
329 Error **errp)
330{
331 trace_visit_type_null(v, name, obj);
332 v->type_null(v, name, obj, errp);
333}
334
335static void output_type_enum(Visitor *v, const char *name, int *obj,
336 const char *const strings[], Error **errp)
337{
338 int i = 0;
339 int value = *obj;
340 char *enum_str;
341
342 while (strings[i++] != NULL);
343 if (value < 0 || value >= i - 1) {
344 error_setg(errp, QERR_INVALID_PARAMETER, name ? name : "null");
345 return;
346 }
347
348 enum_str = (char *)strings[value];
349 visit_type_str(v, name, &enum_str, errp);
350}
351
352static void input_type_enum(Visitor *v, const char *name, int *obj,
353 const char *const strings[], Error **errp)
354{
355 Error *local_err = NULL;
356 int64_t value = 0;
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 while (strings[value] != NULL) {
366 if (strcmp(strings[value], enum_str) == 0) {
367 break;
368 }
369 value++;
370 }
371
372 if (strings[value] == NULL) {
373 error_setg(errp, QERR_INVALID_PARAMETER, enum_str);
374 g_free(enum_str);
375 return;
376 }
377
378 g_free(enum_str);
379 *obj = value;
380}
381
382void visit_type_enum(Visitor *v, const char *name, int *obj,
383 const char *const strings[], Error **errp)
384{
385 assert(obj && strings);
386 trace_visit_type_enum(v, name, obj);
387 switch (v->type) {
388 case VISITOR_INPUT:
389 input_type_enum(v, name, obj, strings, errp);
390 break;
391 case VISITOR_OUTPUT:
392 output_type_enum(v, name, obj, strings, errp);
393 break;
394 case VISITOR_CLONE:
395
396
397 break;
398 case VISITOR_DEALLOC:
399
400 break;
401 }
402}
403
