Luiz Capitulino | 9f9daf9 | 2009-11-18 23:05:30 -0200 | [diff] [blame] | 1 | /* |
Luiz Capitulino | 41836a9 | 2010-05-12 16:34:42 -0300 | [diff] [blame] | 2 | * QError Module |
Luiz Capitulino | 9f9daf9 | 2009-11-18 23:05:30 -0200 | [diff] [blame] | 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 | */ |
Markus Armbruster | 0167f77 | 2010-03-22 10:29:05 +0100 | [diff] [blame] | 12 | |
| 13 | #include "monitor.h" |
Luiz Capitulino | 9f9daf9 | 2009-11-18 23:05:30 -0200 | [diff] [blame] | 14 | #include "qjson.h" |
| 15 | #include "qerror.h" |
Luiz Capitulino | 9f9daf9 | 2009-11-18 23:05:30 -0200 | [diff] [blame] | 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)%%" |
Markus Armbruster | 9d494c4 | 2010-03-25 17:22:30 +0100 | [diff] [blame] | 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. |
Luiz Capitulino | 9f9daf9 | 2009-11-18 23:05:30 -0200 | [diff] [blame] | 45 | */ |
Blue Swirl | d05ac8f | 2009-12-04 20:44:44 +0000 | [diff] [blame] | 46 | static const QErrorStringTable qerror_table[] = { |
Luiz Capitulino | 357b615 | 2009-11-18 23:05:32 -0200 | [diff] [blame] | 47 | { |
Markus Armbruster | 56e9f56 | 2010-02-19 19:52:45 +0100 | [diff] [blame] | 48 | .error_fmt = QERR_BAD_BUS_FOR_DEVICE, |
| 49 | .desc = "Device '%(device)' can't go on a %(bad_bus_type) bus", |
| 50 | }, |
| 51 | { |
Markus Armbruster | 7bbd823 | 2010-02-19 18:05:39 +0100 | [diff] [blame] | 52 | .error_fmt = QERR_BUS_NOT_FOUND, |
| 53 | .desc = "Bus '%(bus)' not found", |
| 54 | }, |
| 55 | { |
Markus Armbruster | 8eae73b | 2010-02-19 19:53:36 +0100 | [diff] [blame] | 56 | .error_fmt = QERR_BUS_NO_HOTPLUG, |
| 57 | .desc = "Bus '%(bus)' does not support hotplugging", |
| 58 | }, |
| 59 | { |
Markus Armbruster | e16a181 | 2009-12-07 21:37:02 +0100 | [diff] [blame] | 60 | .error_fmt = QERR_COMMAND_NOT_FOUND, |
| 61 | .desc = "The command %(name) has not been found", |
Luiz Capitulino | 4b9d468 | 2009-11-26 22:58:57 -0200 | [diff] [blame] | 62 | }, |
| 63 | { |
Luiz Capitulino | 0df37c4 | 2009-12-07 21:36:59 +0100 | [diff] [blame] | 64 | .error_fmt = QERR_DEVICE_ENCRYPTED, |
Markus Armbruster | fc5469d | 2010-02-19 17:42:46 +0100 | [diff] [blame] | 65 | .desc = "Device '%(device)' is encrypted", |
Luiz Capitulino | 0df37c4 | 2009-12-07 21:36:59 +0100 | [diff] [blame] | 66 | }, |
| 67 | { |
Markus Armbruster | 4d9a1a1 | 2010-02-19 19:53:54 +0100 | [diff] [blame] | 68 | .error_fmt = QERR_DEVICE_INIT_FAILED, |
| 69 | .desc = "Device '%(device)' could not be initialized", |
| 70 | }, |
| 71 | { |
Markus Armbruster | 5124eb5 | 2010-03-25 17:22:39 +0100 | [diff] [blame] | 72 | .error_fmt = QERR_DEVICE_IN_USE, |
| 73 | .desc = "Device '%(device)' is in use", |
| 74 | }, |
| 75 | { |
Markus Armbruster | b086838 | 2009-12-07 21:37:03 +0100 | [diff] [blame] | 76 | .error_fmt = QERR_DEVICE_LOCKED, |
Markus Armbruster | fc5469d | 2010-02-19 17:42:46 +0100 | [diff] [blame] | 77 | .desc = "Device '%(device)' is locked", |
Markus Armbruster | b086838 | 2009-12-07 21:37:03 +0100 | [diff] [blame] | 78 | }, |
| 79 | { |
Markus Armbruster | 1ae7871 | 2010-02-19 18:05:59 +0100 | [diff] [blame] | 80 | .error_fmt = QERR_DEVICE_MULTIPLE_BUSSES, |
| 81 | .desc = "Device '%(device)' has multiple child busses", |
| 82 | }, |
| 83 | { |
Luiz Capitulino | 055f612 | 2009-11-18 23:05:34 -0200 | [diff] [blame] | 84 | .error_fmt = QERR_DEVICE_NOT_ACTIVE, |
Luiz Capitulino | 8754c81 | 2010-06-23 12:37:47 -0300 | [diff] [blame] | 85 | .desc = "Device '%(device)' has not been activated", |
Luiz Capitulino | 055f612 | 2009-11-18 23:05:34 -0200 | [diff] [blame] | 86 | }, |
Luiz Capitulino | 82a6071 | 2009-11-18 23:05:35 -0200 | [diff] [blame] | 87 | { |
Markus Armbruster | 9d494c4 | 2010-03-25 17:22:30 +0100 | [diff] [blame] | 88 | .error_fmt = QERR_DEVICE_NOT_ENCRYPTED, |
| 89 | .desc = "Device '%(device)' is not encrypted", |
| 90 | }, |
| 91 | { |
Markus Armbruster | e16a181 | 2009-12-07 21:37:02 +0100 | [diff] [blame] | 92 | .error_fmt = QERR_DEVICE_NOT_FOUND, |
Markus Armbruster | fc5469d | 2010-02-19 17:42:46 +0100 | [diff] [blame] | 93 | .desc = "Device '%(device)' not found", |
Luiz Capitulino | 4b9d468 | 2009-11-26 22:58:57 -0200 | [diff] [blame] | 94 | }, |
| 95 | { |
Markus Armbruster | 5cfe026 | 2009-12-07 21:37:04 +0100 | [diff] [blame] | 96 | .error_fmt = QERR_DEVICE_NOT_REMOVABLE, |
Markus Armbruster | fc5469d | 2010-02-19 17:42:46 +0100 | [diff] [blame] | 97 | .desc = "Device '%(device)' is not removable", |
Markus Armbruster | 5cfe026 | 2009-12-07 21:37:04 +0100 | [diff] [blame] | 98 | }, |
| 99 | { |
Markus Armbruster | 07574ba | 2010-02-19 18:06:18 +0100 | [diff] [blame] | 100 | .error_fmt = QERR_DEVICE_NO_BUS, |
| 101 | .desc = "Device '%(device)' has no child bus", |
| 102 | }, |
| 103 | { |
Gerd Hoffmann | 180c22e | 2011-01-06 15:14:37 +0100 | [diff] [blame] | 104 | .error_fmt = QERR_DEVICE_NO_HOTPLUG, |
| 105 | .desc = "Device '%(device)' does not support hotplugging", |
| 106 | }, |
| 107 | { |
Markus Armbruster | 7bc8401 | 2010-03-25 17:22:31 +0100 | [diff] [blame] | 108 | .error_fmt = QERR_DUPLICATE_ID, |
| 109 | .desc = "Duplicate ID '%(id)' for %(object)", |
| 110 | }, |
| 111 | { |
Markus Armbruster | c7c338c | 2009-12-07 21:37:10 +0100 | [diff] [blame] | 112 | .error_fmt = QERR_FD_NOT_FOUND, |
Markus Armbruster | fc5469d | 2010-02-19 17:42:46 +0100 | [diff] [blame] | 113 | .desc = "File descriptor named '%(name)' not found", |
Markus Armbruster | c7c338c | 2009-12-07 21:37:10 +0100 | [diff] [blame] | 114 | }, |
| 115 | { |
Markus Armbruster | 41471a2 | 2009-12-07 21:37:12 +0100 | [diff] [blame] | 116 | .error_fmt = QERR_FD_NOT_SUPPLIED, |
| 117 | .desc = "No file descriptor supplied via SCM_RIGHTS", |
| 118 | }, |
| 119 | { |
Markus Armbruster | 17901e7 | 2009-12-07 21:37:06 +0100 | [diff] [blame] | 120 | .error_fmt = QERR_INVALID_BLOCK_FORMAT, |
Markus Armbruster | fc5469d | 2010-02-19 17:42:46 +0100 | [diff] [blame] | 121 | .desc = "Invalid block format '%(name)'", |
Markus Armbruster | 17901e7 | 2009-12-07 21:37:06 +0100 | [diff] [blame] | 122 | }, |
| 123 | { |
Markus Armbruster | 7a046f5 | 2009-12-07 21:37:13 +0100 | [diff] [blame] | 124 | .error_fmt = QERR_INVALID_PARAMETER, |
Markus Armbruster | fc5469d | 2010-02-19 17:42:46 +0100 | [diff] [blame] | 125 | .desc = "Invalid parameter '%(name)'", |
Markus Armbruster | 7a046f5 | 2009-12-07 21:37:13 +0100 | [diff] [blame] | 126 | }, |
| 127 | { |
Markus Armbruster | e16a181 | 2009-12-07 21:37:02 +0100 | [diff] [blame] | 128 | .error_fmt = QERR_INVALID_PARAMETER_TYPE, |
| 129 | .desc = "Invalid parameter type, expected: %(expected)", |
| 130 | }, |
| 131 | { |
Markus Armbruster | 985a3e5 | 2010-03-25 17:22:33 +0100 | [diff] [blame] | 132 | .error_fmt = QERR_INVALID_PARAMETER_VALUE, |
| 133 | .desc = "Parameter '%(name)' expects %(expected)", |
| 134 | }, |
| 135 | { |
Markus Armbruster | e16a181 | 2009-12-07 21:37:02 +0100 | [diff] [blame] | 136 | .error_fmt = QERR_INVALID_PASSWORD, |
Markus Armbruster | fc5469d | 2010-02-19 17:42:46 +0100 | [diff] [blame] | 137 | .desc = "Password incorrect", |
Markus Armbruster | e16a181 | 2009-12-07 21:37:02 +0100 | [diff] [blame] | 138 | }, |
| 139 | { |
| 140 | .error_fmt = QERR_JSON_PARSING, |
| 141 | .desc = "Invalid JSON syntax", |
Luiz Capitulino | f6d855c | 2009-12-04 15:24:08 -0200 | [diff] [blame] | 142 | }, |
| 143 | { |
Luiz Capitulino | 82a6071 | 2009-11-18 23:05:35 -0200 | [diff] [blame] | 144 | .error_fmt = QERR_KVM_MISSING_CAP, |
| 145 | .desc = "Using KVM without %(capability), %(feature) unavailable", |
| 146 | }, |
Luiz Capitulino | 4b9d468 | 2009-11-26 22:58:57 -0200 | [diff] [blame] | 147 | { |
Amit Shah | 8e84865 | 2010-07-27 15:49:19 +0530 | [diff] [blame] | 148 | .error_fmt = QERR_MIGRATION_EXPECTED, |
| 149 | .desc = "An incoming migration is expected before this command can be executed", |
| 150 | }, |
| 151 | { |
Luiz Capitulino | 4b9d468 | 2009-11-26 22:58:57 -0200 | [diff] [blame] | 152 | .error_fmt = QERR_MISSING_PARAMETER, |
Markus Armbruster | fc5469d | 2010-02-19 17:42:46 +0100 | [diff] [blame] | 153 | .desc = "Parameter '%(name)' is missing", |
| 154 | }, |
| 155 | { |
Markus Armbruster | fab5767 | 2010-02-19 19:54:06 +0100 | [diff] [blame] | 156 | .error_fmt = QERR_NO_BUS_FOR_DEVICE, |
| 157 | .desc = "No '%(bus)' bus found for device '%(device)'", |
| 158 | }, |
| 159 | { |
Markus Armbruster | fc5469d | 2010-02-19 17:42:46 +0100 | [diff] [blame] | 160 | .error_fmt = QERR_OPEN_FILE_FAILED, |
| 161 | .desc = "Could not open '%(filename)'", |
Luiz Capitulino | 4b9d468 | 2009-11-26 22:58:57 -0200 | [diff] [blame] | 162 | }, |
| 163 | { |
Markus Armbruster | c58a35f | 2010-02-19 13:11:41 +0100 | [diff] [blame] | 164 | .error_fmt = QERR_PROPERTY_NOT_FOUND, |
| 165 | .desc = "Property '%(device).%(property)' not found", |
| 166 | }, |
| 167 | { |
Markus Armbruster | 06b4a70 | 2010-02-19 13:17:58 +0100 | [diff] [blame] | 168 | .error_fmt = QERR_PROPERTY_VALUE_BAD, |
| 169 | .desc = "Property '%(device).%(property)' doesn't take value '%(value)'", |
| 170 | }, |
| 171 | { |
Markus Armbruster | 9c5eff9 | 2010-03-16 17:40:48 +0100 | [diff] [blame] | 172 | .error_fmt = QERR_PROPERTY_VALUE_IN_USE, |
| 173 | .desc = "Property '%(device).%(property)' can't take value '%(value)', it's in use", |
| 174 | }, |
| 175 | { |
Markus Armbruster | 84745d6 | 2010-03-16 17:44:38 +0100 | [diff] [blame] | 176 | .error_fmt = QERR_PROPERTY_VALUE_NOT_FOUND, |
| 177 | .desc = "Property '%(device).%(property)' can't find value '%(value)'", |
| 178 | }, |
| 179 | { |
Luiz Capitulino | 4b9d468 | 2009-11-26 22:58:57 -0200 | [diff] [blame] | 180 | .error_fmt = QERR_QMP_BAD_INPUT_OBJECT, |
Luiz Capitulino | abaf2f5 | 2010-04-07 14:53:49 -0300 | [diff] [blame] | 181 | .desc = "Expected '%(expected)' in QMP input", |
Luiz Capitulino | 4b9d468 | 2009-11-26 22:58:57 -0200 | [diff] [blame] | 182 | }, |
| 183 | { |
Luiz Capitulino | 7dfb612 | 2010-04-07 14:46:33 -0300 | [diff] [blame] | 184 | .error_fmt = QERR_QMP_BAD_INPUT_OBJECT_MEMBER, |
| 185 | .desc = "QMP input object member '%(member)' expects '%(expected)'", |
| 186 | }, |
| 187 | { |
Luiz Capitulino | 60d76d7 | 2010-06-01 16:15:23 -0300 | [diff] [blame] | 188 | .error_fmt = QERR_QMP_EXTRA_MEMBER, |
| 189 | .desc = "QMP input object member '%(member)' is unexpected", |
| 190 | }, |
| 191 | { |
Markus Armbruster | 7a84cb2 | 2009-12-07 21:37:07 +0100 | [diff] [blame] | 192 | .error_fmt = QERR_SET_PASSWD_FAILED, |
| 193 | .desc = "Could not set password", |
| 194 | }, |
| 195 | { |
Markus Armbruster | a488be2 | 2009-12-07 21:37:14 +0100 | [diff] [blame] | 196 | .error_fmt = QERR_TOO_MANY_FILES, |
| 197 | .desc = "Too many open files", |
| 198 | }, |
| 199 | { |
Markus Armbruster | e16a181 | 2009-12-07 21:37:02 +0100 | [diff] [blame] | 200 | .error_fmt = QERR_UNDEFINED_ERROR, |
| 201 | .desc = "An undefined error has ocurred", |
Luiz Capitulino | 4b9d468 | 2009-11-26 22:58:57 -0200 | [diff] [blame] | 202 | }, |
Markus Armbruster | a6906e3 | 2009-12-07 21:37:08 +0100 | [diff] [blame] | 203 | { |
| 204 | .error_fmt = QERR_VNC_SERVER_FAILED, |
| 205 | .desc = "Could not start VNC server on %(target)", |
| 206 | }, |
Luiz Capitulino | 9f9daf9 | 2009-11-18 23:05:30 -0200 | [diff] [blame] | 207 | {} |
| 208 | }; |
| 209 | |
| 210 | /** |
| 211 | * qerror_new(): Create a new QError |
| 212 | * |
| 213 | * Return strong reference. |
| 214 | */ |
| 215 | QError *qerror_new(void) |
| 216 | { |
| 217 | QError *qerr; |
| 218 | |
| 219 | qerr = qemu_mallocz(sizeof(*qerr)); |
| 220 | QOBJECT_INIT(qerr, &qerror_type); |
| 221 | |
| 222 | return qerr; |
| 223 | } |
| 224 | |
Stefan Weil | 8b7968f | 2010-09-23 21:28:05 +0200 | [diff] [blame] | 225 | static void GCC_FMT_ATTR(2, 3) qerror_abort(const QError *qerr, |
| 226 | const char *fmt, ...) |
Luiz Capitulino | 9f9daf9 | 2009-11-18 23:05:30 -0200 | [diff] [blame] | 227 | { |
| 228 | va_list ap; |
| 229 | |
| 230 | fprintf(stderr, "qerror: bad call in function '%s':\n", qerr->func); |
| 231 | fprintf(stderr, "qerror: -> "); |
| 232 | |
| 233 | va_start(ap, fmt); |
| 234 | vfprintf(stderr, fmt, ap); |
| 235 | va_end(ap); |
| 236 | |
| 237 | fprintf(stderr, "\nqerror: call at %s:%d\n", qerr->file, qerr->linenr); |
| 238 | abort(); |
| 239 | } |
| 240 | |
Stefan Weil | 8b7968f | 2010-09-23 21:28:05 +0200 | [diff] [blame] | 241 | static void GCC_FMT_ATTR(2, 0) qerror_set_data(QError *qerr, |
| 242 | const char *fmt, va_list *va) |
Luiz Capitulino | 9f9daf9 | 2009-11-18 23:05:30 -0200 | [diff] [blame] | 243 | { |
| 244 | QObject *obj; |
| 245 | |
| 246 | obj = qobject_from_jsonv(fmt, va); |
| 247 | if (!obj) { |
| 248 | qerror_abort(qerr, "invalid format '%s'", fmt); |
| 249 | } |
| 250 | if (qobject_type(obj) != QTYPE_QDICT) { |
| 251 | qerror_abort(qerr, "error format is not a QDict '%s'", fmt); |
| 252 | } |
| 253 | |
| 254 | qerr->error = qobject_to_qdict(obj); |
| 255 | |
| 256 | obj = qdict_get(qerr->error, "class"); |
| 257 | if (!obj) { |
| 258 | qerror_abort(qerr, "missing 'class' key in '%s'", fmt); |
| 259 | } |
| 260 | if (qobject_type(obj) != QTYPE_QSTRING) { |
| 261 | qerror_abort(qerr, "'class' key value should be a QString"); |
| 262 | } |
| 263 | |
| 264 | obj = qdict_get(qerr->error, "data"); |
| 265 | if (!obj) { |
| 266 | qerror_abort(qerr, "missing 'data' key in '%s'", fmt); |
| 267 | } |
| 268 | if (qobject_type(obj) != QTYPE_QDICT) { |
| 269 | qerror_abort(qerr, "'data' key value should be a QDICT"); |
| 270 | } |
| 271 | } |
| 272 | |
| 273 | static void qerror_set_desc(QError *qerr, const char *fmt) |
| 274 | { |
| 275 | int i; |
| 276 | |
| 277 | // FIXME: inefficient loop |
| 278 | |
| 279 | for (i = 0; qerror_table[i].error_fmt; i++) { |
| 280 | if (strcmp(qerror_table[i].error_fmt, fmt) == 0) { |
| 281 | qerr->entry = &qerror_table[i]; |
| 282 | return; |
| 283 | } |
| 284 | } |
| 285 | |
| 286 | qerror_abort(qerr, "error format '%s' not found", fmt); |
| 287 | } |
| 288 | |
| 289 | /** |
| 290 | * qerror_from_info(): Create a new QError from error information |
| 291 | * |
| 292 | * The information consists of: |
| 293 | * |
| 294 | * - file the file name of where the error occurred |
| 295 | * - linenr the line number of where the error occurred |
| 296 | * - func the function name of where the error occurred |
| 297 | * - fmt JSON printf-like dictionary, there must exist keys 'class' and |
| 298 | * 'data' |
| 299 | * - va va_list of all arguments specified by fmt |
| 300 | * |
| 301 | * Return strong reference. |
| 302 | */ |
| 303 | QError *qerror_from_info(const char *file, int linenr, const char *func, |
| 304 | const char *fmt, va_list *va) |
| 305 | { |
| 306 | QError *qerr; |
| 307 | |
| 308 | qerr = qerror_new(); |
Markus Armbruster | 827b081 | 2010-02-18 19:46:49 +0100 | [diff] [blame] | 309 | loc_save(&qerr->loc); |
Luiz Capitulino | 9f9daf9 | 2009-11-18 23:05:30 -0200 | [diff] [blame] | 310 | qerr->linenr = linenr; |
| 311 | qerr->file = file; |
| 312 | qerr->func = func; |
| 313 | |
| 314 | if (!fmt) { |
| 315 | qerror_abort(qerr, "QDict not specified"); |
| 316 | } |
| 317 | |
| 318 | qerror_set_data(qerr, fmt, va); |
| 319 | qerror_set_desc(qerr, fmt); |
| 320 | |
| 321 | return qerr; |
| 322 | } |
| 323 | |
| 324 | static void parse_error(const QError *qerror, int c) |
| 325 | { |
| 326 | qerror_abort(qerror, "expected '%c' in '%s'", c, qerror->entry->desc); |
| 327 | } |
| 328 | |
| 329 | static const char *append_field(QString *outstr, const QError *qerror, |
| 330 | const char *start) |
| 331 | { |
| 332 | QObject *obj; |
| 333 | QDict *qdict; |
| 334 | QString *key_qs; |
| 335 | const char *end, *key; |
| 336 | |
| 337 | if (*start != '%') |
| 338 | parse_error(qerror, '%'); |
| 339 | start++; |
| 340 | if (*start != '(') |
| 341 | parse_error(qerror, '('); |
| 342 | start++; |
| 343 | |
| 344 | end = strchr(start, ')'); |
| 345 | if (!end) |
| 346 | parse_error(qerror, ')'); |
| 347 | |
| 348 | key_qs = qstring_from_substr(start, 0, end - start - 1); |
| 349 | key = qstring_get_str(key_qs); |
| 350 | |
| 351 | qdict = qobject_to_qdict(qdict_get(qerror->error, "data")); |
| 352 | obj = qdict_get(qdict, key); |
| 353 | if (!obj) { |
| 354 | qerror_abort(qerror, "key '%s' not found in QDict", key); |
| 355 | } |
| 356 | |
| 357 | switch (qobject_type(obj)) { |
| 358 | case QTYPE_QSTRING: |
| 359 | qstring_append(outstr, qdict_get_str(qdict, key)); |
| 360 | break; |
| 361 | case QTYPE_QINT: |
| 362 | qstring_append_int(outstr, qdict_get_int(qdict, key)); |
| 363 | break; |
| 364 | default: |
| 365 | qerror_abort(qerror, "invalid type '%c'", qobject_type(obj)); |
| 366 | } |
| 367 | |
| 368 | QDECREF(key_qs); |
| 369 | return ++end; |
| 370 | } |
| 371 | |
| 372 | /** |
Markus Armbruster | 77e595e | 2009-12-07 21:37:16 +0100 | [diff] [blame] | 373 | * qerror_human(): Format QError data into human-readable string. |
Luiz Capitulino | 9f9daf9 | 2009-11-18 23:05:30 -0200 | [diff] [blame] | 374 | * |
Markus Armbruster | 77e595e | 2009-12-07 21:37:16 +0100 | [diff] [blame] | 375 | * Formats according to member 'desc' of the specified QError object. |
Luiz Capitulino | 9f9daf9 | 2009-11-18 23:05:30 -0200 | [diff] [blame] | 376 | */ |
Markus Armbruster | 77e595e | 2009-12-07 21:37:16 +0100 | [diff] [blame] | 377 | QString *qerror_human(const QError *qerror) |
Luiz Capitulino | 9f9daf9 | 2009-11-18 23:05:30 -0200 | [diff] [blame] | 378 | { |
| 379 | const char *p; |
| 380 | QString *qstring; |
| 381 | |
| 382 | assert(qerror->entry != NULL); |
| 383 | |
| 384 | qstring = qstring_new(); |
| 385 | |
| 386 | for (p = qerror->entry->desc; *p != '\0';) { |
| 387 | if (*p != '%') { |
| 388 | qstring_append_chr(qstring, *p++); |
| 389 | } else if (*(p + 1) == '%') { |
| 390 | qstring_append_chr(qstring, '%'); |
| 391 | p += 2; |
| 392 | } else { |
| 393 | p = append_field(qstring, qerror, p); |
| 394 | } |
| 395 | } |
| 396 | |
Markus Armbruster | 77e595e | 2009-12-07 21:37:16 +0100 | [diff] [blame] | 397 | return qstring; |
| 398 | } |
| 399 | |
| 400 | /** |
| 401 | * qerror_print(): Print QError data |
| 402 | * |
| 403 | * This function will print the member 'desc' of the specified QError object, |
Markus Armbruster | 1ecda02 | 2010-02-18 17:25:24 +0100 | [diff] [blame] | 404 | * it uses error_report() for this, so that the output is routed to the right |
Markus Armbruster | 77e595e | 2009-12-07 21:37:16 +0100 | [diff] [blame] | 405 | * place (ie. stderr or Monitor's device). |
| 406 | */ |
Markus Armbruster | 827b081 | 2010-02-18 19:46:49 +0100 | [diff] [blame] | 407 | void qerror_print(QError *qerror) |
Markus Armbruster | 77e595e | 2009-12-07 21:37:16 +0100 | [diff] [blame] | 408 | { |
| 409 | QString *qstring = qerror_human(qerror); |
Markus Armbruster | 827b081 | 2010-02-18 19:46:49 +0100 | [diff] [blame] | 410 | loc_push_restore(&qerror->loc); |
Markus Armbruster | 1ecda02 | 2010-02-18 17:25:24 +0100 | [diff] [blame] | 411 | error_report("%s", qstring_get_str(qstring)); |
Markus Armbruster | 827b081 | 2010-02-18 19:46:49 +0100 | [diff] [blame] | 412 | loc_pop(&qerror->loc); |
Luiz Capitulino | 9f9daf9 | 2009-11-18 23:05:30 -0200 | [diff] [blame] | 413 | QDECREF(qstring); |
| 414 | } |
| 415 | |
Markus Armbruster | 0167f77 | 2010-03-22 10:29:05 +0100 | [diff] [blame] | 416 | void qerror_report_internal(const char *file, int linenr, const char *func, |
| 417 | const char *fmt, ...) |
| 418 | { |
| 419 | va_list va; |
| 420 | QError *qerror; |
| 421 | |
| 422 | va_start(va, fmt); |
| 423 | qerror = qerror_from_info(file, linenr, func, fmt, &va); |
| 424 | va_end(va); |
| 425 | |
| 426 | if (monitor_cur_is_qmp()) { |
| 427 | monitor_set_error(cur_mon, qerror); |
| 428 | } else { |
| 429 | qerror_print(qerror); |
| 430 | QDECREF(qerror); |
| 431 | } |
| 432 | } |
| 433 | |
Luiz Capitulino | 9f9daf9 | 2009-11-18 23:05:30 -0200 | [diff] [blame] | 434 | /** |
| 435 | * qobject_to_qerror(): Convert a QObject into a QError |
| 436 | */ |
| 437 | QError *qobject_to_qerror(const QObject *obj) |
| 438 | { |
| 439 | if (qobject_type(obj) != QTYPE_QERROR) { |
| 440 | return NULL; |
| 441 | } |
| 442 | |
| 443 | return container_of(obj, QError, base); |
| 444 | } |
| 445 | |
| 446 | /** |
| 447 | * qerror_destroy_obj(): Free all memory allocated by a QError |
| 448 | */ |
| 449 | static void qerror_destroy_obj(QObject *obj) |
| 450 | { |
| 451 | QError *qerr; |
| 452 | |
| 453 | assert(obj != NULL); |
| 454 | qerr = qobject_to_qerror(obj); |
| 455 | |
| 456 | QDECREF(qerr->error); |
| 457 | qemu_free(qerr); |
| 458 | } |