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9f9daf9a | 1 | /* |
41836a9f | 2 | * QError Module |
9f9daf9a LC |
3 | * |
4 | * Copyright (C) 2009 Red Hat Inc. | |
5 | * | |
6 | * Authors: | |
7 | * Luiz Capitulino <lcapitulino@redhat.com> | |
8 | * | |
9 | * This work is licensed under the terms of the GNU LGPL, version 2.1 or later. | |
10 | * See the COPYING.LIB file in the top-level directory. | |
11 | */ | |
0167f772 MA |
12 | |
13 | #include "monitor.h" | |
9f9daf9a LC |
14 | #include "qjson.h" |
15 | #include "qerror.h" | |
9f9daf9a LC |
16 | #include "qemu-common.h" |
17 | ||
18 | static void qerror_destroy_obj(QObject *obj); | |
19 | ||
20 | static const QType qerror_type = { | |
21 | .code = QTYPE_QERROR, | |
22 | .destroy = qerror_destroy_obj, | |
23 | }; | |
24 | ||
25 | /** | |
26 | * The 'desc' parameter is a printf-like string, the format of the format | |
27 | * string is: | |
28 | * | |
29 | * %(KEY) | |
30 | * | |
31 | * Where KEY is a QDict key, which has to be passed to qerror_from_info(). | |
32 | * | |
33 | * Example: | |
34 | * | |
35 | * "foo error on device: %(device) slot: %(slot_nr)" | |
36 | * | |
37 | * A single percent sign can be printed if followed by a second one, | |
38 | * for example: | |
39 | * | |
40 | * "running out of foo: %(foo)%%" | |
9d494c4b MA |
41 | * |
42 | * Please keep the entries in alphabetical order. | |
43 | * Use "sed -n '/^static.*qerror_table\[\]/,/^};/s/QERR_/&/gp' qerror.c | sort -c" | |
44 | * to check. | |
9f9daf9a | 45 | */ |
d05ac8fa | 46 | static const QErrorStringTable qerror_table[] = { |
56e9f563 MA |
47 | { |
48 | .error_fmt = QERR_BAD_BUS_FOR_DEVICE, | |
49 | .desc = "Device '%(device)' can't go on a %(bad_bus_type) bus", | |
50 | }, | |
1ed520c6 AL |
51 | { |
52 | .error_fmt = QERR_BLOCK_FORMAT_FEATURE_NOT_SUPPORTED, | |
53 | .desc = "Block format '%(format)' used by device '%(name)' does not support feature '%(feature)'", | |
54 | }, | |
7bbd8237 MA |
55 | { |
56 | .error_fmt = QERR_BUS_NOT_FOUND, | |
57 | .desc = "Bus '%(bus)' not found", | |
58 | }, | |
8eae73b5 MA |
59 | { |
60 | .error_fmt = QERR_BUS_NO_HOTPLUG, | |
61 | .desc = "Bus '%(bus)' does not support hotplugging", | |
62 | }, | |
4b9d4683 | 63 | { |
e16a1812 MA |
64 | .error_fmt = QERR_COMMAND_NOT_FOUND, |
65 | .desc = "The command %(name) has not been found", | |
4b9d4683 | 66 | }, |
0df37c41 LC |
67 | { |
68 | .error_fmt = QERR_DEVICE_ENCRYPTED, | |
fc5469d8 | 69 | .desc = "Device '%(device)' is encrypted", |
0df37c41 | 70 | }, |
4d9a1a15 MA |
71 | { |
72 | .error_fmt = QERR_DEVICE_INIT_FAILED, | |
73 | .desc = "Device '%(device)' could not be initialized", | |
74 | }, | |
5124eb59 MA |
75 | { |
76 | .error_fmt = QERR_DEVICE_IN_USE, | |
77 | .desc = "Device '%(device)' is in use", | |
78 | }, | |
38e0735e AL |
79 | { |
80 | .error_fmt = QERR_DEVICE_FEATURE_BLOCKS_MIGRATION, | |
81 | .desc = "Migration is disabled when using feature '%(feature)' in device '%(device)'", | |
82 | }, | |
b0868380 MA |
83 | { |
84 | .error_fmt = QERR_DEVICE_LOCKED, | |
fc5469d8 | 85 | .desc = "Device '%(device)' is locked", |
b0868380 | 86 | }, |
1ae78718 MA |
87 | { |
88 | .error_fmt = QERR_DEVICE_MULTIPLE_BUSSES, | |
89 | .desc = "Device '%(device)' has multiple child busses", | |
90 | }, | |
e16a1812 MA |
91 | { |
92 | .error_fmt = QERR_DEVICE_NOT_ACTIVE, | |
8754c81e | 93 | .desc = "Device '%(device)' has not been activated", |
e16a1812 | 94 | }, |
9d494c4b MA |
95 | { |
96 | .error_fmt = QERR_DEVICE_NOT_ENCRYPTED, | |
97 | .desc = "Device '%(device)' is not encrypted", | |
98 | }, | |
357b6156 LC |
99 | { |
100 | .error_fmt = QERR_DEVICE_NOT_FOUND, | |
fc5469d8 | 101 | .desc = "Device '%(device)' not found", |
357b6156 | 102 | }, |
5cfe0264 MA |
103 | { |
104 | .error_fmt = QERR_DEVICE_NOT_REMOVABLE, | |
fc5469d8 | 105 | .desc = "Device '%(device)' is not removable", |
5cfe0264 | 106 | }, |
07574baf MA |
107 | { |
108 | .error_fmt = QERR_DEVICE_NO_BUS, | |
109 | .desc = "Device '%(device)' has no child bus", | |
110 | }, | |
180c22e1 GH |
111 | { |
112 | .error_fmt = QERR_DEVICE_NO_HOTPLUG, | |
113 | .desc = "Device '%(device)' does not support hotplugging", | |
114 | }, | |
7bc84017 MA |
115 | { |
116 | .error_fmt = QERR_DUPLICATE_ID, | |
117 | .desc = "Duplicate ID '%(id)' for %(object)", | |
118 | }, | |
c7c338c4 MA |
119 | { |
120 | .error_fmt = QERR_FD_NOT_FOUND, | |
fc5469d8 | 121 | .desc = "File descriptor named '%(name)' not found", |
c7c338c4 | 122 | }, |
41471a23 MA |
123 | { |
124 | .error_fmt = QERR_FD_NOT_SUPPLIED, | |
125 | .desc = "No file descriptor supplied via SCM_RIGHTS", | |
126 | }, | |
bf826328 LC |
127 | { |
128 | .error_fmt = QERR_FEATURE_DISABLED, | |
129 | .desc = "The feature '%(name)' is not enabled", | |
130 | }, | |
17901e75 MA |
131 | { |
132 | .error_fmt = QERR_INVALID_BLOCK_FORMAT, | |
fc5469d8 | 133 | .desc = "Invalid block format '%(name)'", |
17901e75 | 134 | }, |
7a046f5f MA |
135 | { |
136 | .error_fmt = QERR_INVALID_PARAMETER, | |
fc5469d8 | 137 | .desc = "Invalid parameter '%(name)'", |
7a046f5f | 138 | }, |
055f6122 | 139 | { |
e16a1812 MA |
140 | .error_fmt = QERR_INVALID_PARAMETER_TYPE, |
141 | .desc = "Invalid parameter type, expected: %(expected)", | |
055f6122 | 142 | }, |
985a3e52 MA |
143 | { |
144 | .error_fmt = QERR_INVALID_PARAMETER_VALUE, | |
145 | .desc = "Parameter '%(name)' expects %(expected)", | |
146 | }, | |
4b9d4683 | 147 | { |
e16a1812 | 148 | .error_fmt = QERR_INVALID_PASSWORD, |
fc5469d8 | 149 | .desc = "Password incorrect", |
4b9d4683 | 150 | }, |
58898873 LC |
151 | { |
152 | .error_fmt = QERR_IO_ERROR, | |
153 | .desc = "An IO error has occurred", | |
154 | }, | |
f6d855c5 | 155 | { |
e16a1812 MA |
156 | .error_fmt = QERR_JSON_PARSING, |
157 | .desc = "Invalid JSON syntax", | |
f6d855c5 | 158 | }, |
ac32c780 MR |
159 | { |
160 | .error_fmt = QERR_JSON_PARSE_ERROR, | |
161 | .desc = "JSON parse error, %(message)", | |
162 | ||
163 | }, | |
82a60711 LC |
164 | { |
165 | .error_fmt = QERR_KVM_MISSING_CAP, | |
166 | .desc = "Using KVM without %(capability), %(feature) unavailable", | |
167 | }, | |
8e84865e AS |
168 | { |
169 | .error_fmt = QERR_MIGRATION_EXPECTED, | |
170 | .desc = "An incoming migration is expected before this command can be executed", | |
171 | }, | |
4b9d4683 LC |
172 | { |
173 | .error_fmt = QERR_MISSING_PARAMETER, | |
fc5469d8 MA |
174 | .desc = "Parameter '%(name)' is missing", |
175 | }, | |
fab5767f MA |
176 | { |
177 | .error_fmt = QERR_NO_BUS_FOR_DEVICE, | |
178 | .desc = "No '%(bus)' bus found for device '%(device)'", | |
179 | }, | |
fc5469d8 MA |
180 | { |
181 | .error_fmt = QERR_OPEN_FILE_FAILED, | |
182 | .desc = "Could not open '%(filename)'", | |
4b9d4683 | 183 | }, |
c58a35f8 MA |
184 | { |
185 | .error_fmt = QERR_PROPERTY_NOT_FOUND, | |
186 | .desc = "Property '%(device).%(property)' not found", | |
187 | }, | |
06b4a703 MA |
188 | { |
189 | .error_fmt = QERR_PROPERTY_VALUE_BAD, | |
190 | .desc = "Property '%(device).%(property)' doesn't take value '%(value)'", | |
191 | }, | |
9c5eff95 MA |
192 | { |
193 | .error_fmt = QERR_PROPERTY_VALUE_IN_USE, | |
194 | .desc = "Property '%(device).%(property)' can't take value '%(value)', it's in use", | |
195 | }, | |
84745d68 MA |
196 | { |
197 | .error_fmt = QERR_PROPERTY_VALUE_NOT_FOUND, | |
198 | .desc = "Property '%(device).%(property)' can't find value '%(value)'", | |
199 | }, | |
4b9d4683 LC |
200 | { |
201 | .error_fmt = QERR_QMP_BAD_INPUT_OBJECT, | |
abaf2f52 | 202 | .desc = "Expected '%(expected)' in QMP input", |
4b9d4683 | 203 | }, |
7dfb6123 LC |
204 | { |
205 | .error_fmt = QERR_QMP_BAD_INPUT_OBJECT_MEMBER, | |
206 | .desc = "QMP input object member '%(member)' expects '%(expected)'", | |
207 | }, | |
60d76d7b LC |
208 | { |
209 | .error_fmt = QERR_QMP_EXTRA_MEMBER, | |
210 | .desc = "QMP input object member '%(member)' is unexpected", | |
211 | }, | |
6667b23f LC |
212 | { |
213 | .error_fmt = QERR_RESET_REQUIRED, | |
214 | .desc = "Resetting the Virtual Machine is required", | |
215 | }, | |
7a84cb23 MA |
216 | { |
217 | .error_fmt = QERR_SET_PASSWD_FAILED, | |
218 | .desc = "Could not set password", | |
219 | }, | |
13661089 DB |
220 | { |
221 | .error_fmt = QERR_ADD_CLIENT_FAILED, | |
222 | .desc = "Could not add client", | |
223 | }, | |
a488be27 MA |
224 | { |
225 | .error_fmt = QERR_TOO_MANY_FILES, | |
226 | .desc = "Too many open files", | |
227 | }, | |
4b9d4683 | 228 | { |
e16a1812 | 229 | .error_fmt = QERR_UNDEFINED_ERROR, |
07f35073 | 230 | .desc = "An undefined error has occurred", |
4b9d4683 | 231 | }, |
4c5a1e4d LJ |
232 | { |
233 | .error_fmt = QERR_UNSUPPORTED, | |
234 | .desc = "this feature or command is not currently supported", | |
235 | }, | |
f54e3641 KW |
236 | { |
237 | .error_fmt = QERR_UNKNOWN_BLOCK_FORMAT_FEATURE, | |
238 | .desc = "'%(device)' uses a %(format) feature which is not " | |
239 | "supported by this qemu version: %(feature)", | |
240 | }, | |
e9a0152b AK |
241 | { |
242 | .error_fmt = QERR_VIRTFS_FEATURE_BLOCKS_MIGRATION, | |
243 | .desc = "Migration is disabled when VirtFS export path '%(path)' " | |
244 | "is mounted in the guest using mount_tag '%(tag)'", | |
245 | }, | |
a6906e31 MA |
246 | { |
247 | .error_fmt = QERR_VNC_SERVER_FAILED, | |
248 | .desc = "Could not start VNC server on %(target)", | |
249 | }, | |
e3d4d252 MR |
250 | { |
251 | .error_fmt = QERR_QGA_LOGGING_FAILED, | |
252 | .desc = "Guest agent failed to log non-optional log statement", | |
253 | }, | |
254 | { | |
255 | .error_fmt = QERR_QGA_COMMAND_FAILED, | |
256 | .desc = "Guest agent command failed, error was '%(message)'", | |
257 | }, | |
727f005e ZYW |
258 | { |
259 | .error_fmt = QERR_INVALID_PARAMETER_COMBINATION, | |
260 | .desc = "Invalid paramter combination", | |
261 | }, | |
9f9daf9a LC |
262 | {} |
263 | }; | |
264 | ||
265 | /** | |
266 | * qerror_new(): Create a new QError | |
267 | * | |
268 | * Return strong reference. | |
269 | */ | |
270 | QError *qerror_new(void) | |
271 | { | |
272 | QError *qerr; | |
273 | ||
7267c094 | 274 | qerr = g_malloc0(sizeof(*qerr)); |
9f9daf9a LC |
275 | QOBJECT_INIT(qerr, &qerror_type); |
276 | ||
277 | return qerr; | |
278 | } | |
279 | ||
8b7968f7 SW |
280 | static void GCC_FMT_ATTR(2, 3) qerror_abort(const QError *qerr, |
281 | const char *fmt, ...) | |
9f9daf9a LC |
282 | { |
283 | va_list ap; | |
284 | ||
285 | fprintf(stderr, "qerror: bad call in function '%s':\n", qerr->func); | |
286 | fprintf(stderr, "qerror: -> "); | |
287 | ||
288 | va_start(ap, fmt); | |
289 | vfprintf(stderr, fmt, ap); | |
290 | va_end(ap); | |
291 | ||
292 | fprintf(stderr, "\nqerror: call at %s:%d\n", qerr->file, qerr->linenr); | |
293 | abort(); | |
294 | } | |
295 | ||
8b7968f7 SW |
296 | static void GCC_FMT_ATTR(2, 0) qerror_set_data(QError *qerr, |
297 | const char *fmt, va_list *va) | |
9f9daf9a LC |
298 | { |
299 | QObject *obj; | |
300 | ||
301 | obj = qobject_from_jsonv(fmt, va); | |
302 | if (!obj) { | |
303 | qerror_abort(qerr, "invalid format '%s'", fmt); | |
304 | } | |
305 | if (qobject_type(obj) != QTYPE_QDICT) { | |
306 | qerror_abort(qerr, "error format is not a QDict '%s'", fmt); | |
307 | } | |
308 | ||
309 | qerr->error = qobject_to_qdict(obj); | |
310 | ||
311 | obj = qdict_get(qerr->error, "class"); | |
312 | if (!obj) { | |
313 | qerror_abort(qerr, "missing 'class' key in '%s'", fmt); | |
314 | } | |
315 | if (qobject_type(obj) != QTYPE_QSTRING) { | |
316 | qerror_abort(qerr, "'class' key value should be a QString"); | |
317 | } | |
318 | ||
319 | obj = qdict_get(qerr->error, "data"); | |
320 | if (!obj) { | |
321 | qerror_abort(qerr, "missing 'data' key in '%s'", fmt); | |
322 | } | |
323 | if (qobject_type(obj) != QTYPE_QDICT) { | |
324 | qerror_abort(qerr, "'data' key value should be a QDICT"); | |
325 | } | |
326 | } | |
327 | ||
328 | static void qerror_set_desc(QError *qerr, const char *fmt) | |
329 | { | |
330 | int i; | |
331 | ||
332 | // FIXME: inefficient loop | |
333 | ||
334 | for (i = 0; qerror_table[i].error_fmt; i++) { | |
335 | if (strcmp(qerror_table[i].error_fmt, fmt) == 0) { | |
336 | qerr->entry = &qerror_table[i]; | |
337 | return; | |
338 | } | |
339 | } | |
340 | ||
341 | qerror_abort(qerr, "error format '%s' not found", fmt); | |
342 | } | |
343 | ||
344 | /** | |
345 | * qerror_from_info(): Create a new QError from error information | |
346 | * | |
347 | * The information consists of: | |
348 | * | |
349 | * - file the file name of where the error occurred | |
350 | * - linenr the line number of where the error occurred | |
351 | * - func the function name of where the error occurred | |
352 | * - fmt JSON printf-like dictionary, there must exist keys 'class' and | |
353 | * 'data' | |
354 | * - va va_list of all arguments specified by fmt | |
355 | * | |
356 | * Return strong reference. | |
357 | */ | |
358 | QError *qerror_from_info(const char *file, int linenr, const char *func, | |
359 | const char *fmt, va_list *va) | |
360 | { | |
361 | QError *qerr; | |
362 | ||
363 | qerr = qerror_new(); | |
827b0813 | 364 | loc_save(&qerr->loc); |
9f9daf9a LC |
365 | qerr->linenr = linenr; |
366 | qerr->file = file; | |
367 | qerr->func = func; | |
368 | ||
369 | if (!fmt) { | |
370 | qerror_abort(qerr, "QDict not specified"); | |
371 | } | |
372 | ||
373 | qerror_set_data(qerr, fmt, va); | |
374 | qerror_set_desc(qerr, fmt); | |
375 | ||
376 | return qerr; | |
377 | } | |
378 | ||
a12eeaaa | 379 | static void parse_error(const QErrorStringTable *entry, int c) |
9f9daf9a | 380 | { |
a12eeaaa LC |
381 | fprintf(stderr, "expected '%c' in '%s'", c, entry->desc); |
382 | abort(); | |
9f9daf9a LC |
383 | } |
384 | ||
a12eeaaa LC |
385 | static const char *append_field(QDict *error, QString *outstr, |
386 | const QErrorStringTable *entry, | |
9f9daf9a LC |
387 | const char *start) |
388 | { | |
389 | QObject *obj; | |
390 | QDict *qdict; | |
391 | QString *key_qs; | |
392 | const char *end, *key; | |
393 | ||
394 | if (*start != '%') | |
a12eeaaa | 395 | parse_error(entry, '%'); |
9f9daf9a LC |
396 | start++; |
397 | if (*start != '(') | |
a12eeaaa | 398 | parse_error(entry, '('); |
9f9daf9a LC |
399 | start++; |
400 | ||
401 | end = strchr(start, ')'); | |
402 | if (!end) | |
a12eeaaa | 403 | parse_error(entry, ')'); |
9f9daf9a LC |
404 | |
405 | key_qs = qstring_from_substr(start, 0, end - start - 1); | |
406 | key = qstring_get_str(key_qs); | |
407 | ||
a12eeaaa | 408 | qdict = qobject_to_qdict(qdict_get(error, "data")); |
9f9daf9a LC |
409 | obj = qdict_get(qdict, key); |
410 | if (!obj) { | |
a12eeaaa | 411 | abort(); |
9f9daf9a LC |
412 | } |
413 | ||
414 | switch (qobject_type(obj)) { | |
415 | case QTYPE_QSTRING: | |
416 | qstring_append(outstr, qdict_get_str(qdict, key)); | |
417 | break; | |
418 | case QTYPE_QINT: | |
419 | qstring_append_int(outstr, qdict_get_int(qdict, key)); | |
420 | break; | |
421 | default: | |
a12eeaaa | 422 | abort(); |
9f9daf9a LC |
423 | } |
424 | ||
425 | QDECREF(key_qs); | |
426 | return ++end; | |
427 | } | |
428 | ||
a12eeaaa LC |
429 | static QString *qerror_format_desc(QDict *error, |
430 | const QErrorStringTable *entry) | |
9f9daf9a | 431 | { |
9f9daf9a | 432 | QString *qstring; |
a12eeaaa | 433 | const char *p; |
9f9daf9a | 434 | |
a12eeaaa | 435 | assert(entry != NULL); |
9f9daf9a LC |
436 | |
437 | qstring = qstring_new(); | |
438 | ||
a12eeaaa | 439 | for (p = entry->desc; *p != '\0';) { |
9f9daf9a LC |
440 | if (*p != '%') { |
441 | qstring_append_chr(qstring, *p++); | |
442 | } else if (*(p + 1) == '%') { | |
443 | qstring_append_chr(qstring, '%'); | |
444 | p += 2; | |
445 | } else { | |
a12eeaaa | 446 | p = append_field(error, qstring, entry, p); |
9f9daf9a LC |
447 | } |
448 | } | |
449 | ||
77e595e7 MA |
450 | return qstring; |
451 | } | |
452 | ||
87c2f591 LC |
453 | QString *qerror_format(const char *fmt, QDict *error) |
454 | { | |
455 | const QErrorStringTable *entry = NULL; | |
456 | int i; | |
457 | ||
458 | for (i = 0; qerror_table[i].error_fmt; i++) { | |
459 | if (strcmp(qerror_table[i].error_fmt, fmt) == 0) { | |
460 | entry = &qerror_table[i]; | |
461 | break; | |
462 | } | |
463 | } | |
464 | ||
465 | return qerror_format_desc(error, entry); | |
466 | } | |
467 | ||
a12eeaaa LC |
468 | /** |
469 | * qerror_human(): Format QError data into human-readable string. | |
470 | */ | |
471 | QString *qerror_human(const QError *qerror) | |
472 | { | |
473 | return qerror_format_desc(qerror->error, qerror->entry); | |
474 | } | |
475 | ||
77e595e7 MA |
476 | /** |
477 | * qerror_print(): Print QError data | |
478 | * | |
479 | * This function will print the member 'desc' of the specified QError object, | |
1ecda02b | 480 | * it uses error_report() for this, so that the output is routed to the right |
77e595e7 MA |
481 | * place (ie. stderr or Monitor's device). |
482 | */ | |
827b0813 | 483 | void qerror_print(QError *qerror) |
77e595e7 MA |
484 | { |
485 | QString *qstring = qerror_human(qerror); | |
827b0813 | 486 | loc_push_restore(&qerror->loc); |
1ecda02b | 487 | error_report("%s", qstring_get_str(qstring)); |
827b0813 | 488 | loc_pop(&qerror->loc); |
9f9daf9a LC |
489 | QDECREF(qstring); |
490 | } | |
491 | ||
0167f772 MA |
492 | void qerror_report_internal(const char *file, int linenr, const char *func, |
493 | const char *fmt, ...) | |
494 | { | |
495 | va_list va; | |
496 | QError *qerror; | |
497 | ||
498 | va_start(va, fmt); | |
499 | qerror = qerror_from_info(file, linenr, func, fmt, &va); | |
500 | va_end(va); | |
501 | ||
502 | if (monitor_cur_is_qmp()) { | |
503 | monitor_set_error(cur_mon, qerror); | |
504 | } else { | |
505 | qerror_print(qerror); | |
506 | QDECREF(qerror); | |
507 | } | |
508 | } | |
509 | ||
2a82d936 AL |
510 | /* Evil... */ |
511 | struct Error | |
512 | { | |
513 | QDict *obj; | |
514 | const char *fmt; | |
515 | char *msg; | |
516 | }; | |
517 | ||
518 | void qerror_report_err(Error *err) | |
519 | { | |
520 | QError *qerr; | |
521 | int i; | |
522 | ||
523 | qerr = qerror_new(); | |
524 | loc_save(&qerr->loc); | |
525 | QINCREF(err->obj); | |
526 | qerr->error = err->obj; | |
527 | ||
528 | for (i = 0; qerror_table[i].error_fmt; i++) { | |
529 | if (strcmp(qerror_table[i].error_fmt, err->fmt) == 0) { | |
530 | qerr->entry = &qerror_table[i]; | |
531 | break; | |
532 | } | |
533 | } | |
534 | ||
535 | if (monitor_cur_is_qmp()) { | |
536 | monitor_set_error(cur_mon, qerr); | |
537 | } else { | |
538 | qerror_print(qerr); | |
539 | QDECREF(qerr); | |
540 | } | |
541 | } | |
542 | ||
9f9daf9a LC |
543 | /** |
544 | * qobject_to_qerror(): Convert a QObject into a QError | |
545 | */ | |
546 | QError *qobject_to_qerror(const QObject *obj) | |
547 | { | |
548 | if (qobject_type(obj) != QTYPE_QERROR) { | |
549 | return NULL; | |
550 | } | |
551 | ||
552 | return container_of(obj, QError, base); | |
553 | } | |
554 | ||
555 | /** | |
556 | * qerror_destroy_obj(): Free all memory allocated by a QError | |
557 | */ | |
558 | static void qerror_destroy_obj(QObject *obj) | |
559 | { | |
560 | QError *qerr; | |
561 | ||
562 | assert(obj != NULL); | |
563 | qerr = qobject_to_qerror(obj); | |
564 | ||
565 | QDECREF(qerr->error); | |
7267c094 | 566 | g_free(qerr); |
9f9daf9a | 567 | } |