1 /* 2 * Core Definitions for QAPI Visitor Classes 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 LGPL, version 2.1 or later. 10 * See the COPYING.LIB file in the top-level directory. 11 * 12 */ 13 14 #include "qemu-common.h" 15 #include "qapi/qmp/qerror.h" 16 #include "qapi/visitor.h" 17 #include "qapi/visitor-impl.h" 18 19 void visit_start_handle(Visitor *v, void **obj, const char *kind, 20 const char *name, Error **errp) 21 { 22 if (!error_is_set(errp) && v->start_handle) { 23 v->start_handle(v, obj, kind, name, errp); 24 } 25 } 26 27 void visit_end_handle(Visitor *v, Error **errp) 28 { 29 if (!error_is_set(errp) && v->end_handle) { 30 v->end_handle(v, errp); 31 } 32 } 33 34 void visit_start_struct(Visitor *v, void **obj, const char *kind, 35 const char *name, size_t size, Error **errp) 36 { 37 if (!error_is_set(errp)) { 38 v->start_struct(v, obj, kind, name, size, errp); 39 } 40 } 41 42 void visit_end_struct(Visitor *v, Error **errp) 43 { 44 assert(!error_is_set(errp)); 45 v->end_struct(v, errp); 46 } 47 48 void visit_start_list(Visitor *v, const char *name, Error **errp) 49 { 50 if (!error_is_set(errp)) { 51 v->start_list(v, name, errp); 52 } 53 } 54 55 GenericList *visit_next_list(Visitor *v, GenericList **list, Error **errp) 56 { 57 if (!error_is_set(errp)) { 58 return v->next_list(v, list, errp); 59 } 60 61 return 0; 62 } 63 64 void visit_end_list(Visitor *v, Error **errp) 65 { 66 assert(!error_is_set(errp)); 67 v->end_list(v, errp); 68 } 69 70 void visit_start_optional(Visitor *v, bool *present, const char *name, 71 Error **errp) 72 { 73 if (!error_is_set(errp) && v->start_optional) { 74 v->start_optional(v, present, name, errp); 75 } 76 } 77 78 void visit_end_optional(Visitor *v, Error **errp) 79 { 80 if (!error_is_set(errp) && v->end_optional) { 81 v->end_optional(v, errp); 82 } 83 } 84 85 void visit_type_enum(Visitor *v, int *obj, const char *strings[], 86 const char *kind, const char *name, Error **errp) 87 { 88 if (!error_is_set(errp)) { 89 v->type_enum(v, obj, strings, kind, name, errp); 90 } 91 } 92 93 void visit_type_int(Visitor *v, int64_t *obj, const char *name, Error **errp) 94 { 95 if (!error_is_set(errp)) { 96 v->type_int(v, obj, name, errp); 97 } 98 } 99 100 void visit_type_uint8(Visitor *v, uint8_t *obj, const char *name, Error **errp) 101 { 102 int64_t value; 103 if (!error_is_set(errp)) { 104 if (v->type_uint8) { 105 v->type_uint8(v, obj, name, errp); 106 } else { 107 value = *obj; 108 v->type_int(v, &value, name, errp); 109 if (value < 0 || value > UINT8_MAX) { 110 error_set(errp, QERR_INVALID_PARAMETER_VALUE, name ? name : "null", 111 "uint8_t"); 112 return; 113 } 114 *obj = value; 115 } 116 } 117 } 118 119 void visit_type_uint16(Visitor *v, uint16_t *obj, const char *name, Error **errp) 120 { 121 int64_t value; 122 if (!error_is_set(errp)) { 123 if (v->type_uint16) { 124 v->type_uint16(v, obj, name, errp); 125 } else { 126 value = *obj; 127 v->type_int(v, &value, name, errp); 128 if (value < 0 || value > UINT16_MAX) { 129 error_set(errp, QERR_INVALID_PARAMETER_VALUE, name ? name : "null", 130 "uint16_t"); 131 return; 132 } 133 *obj = value; 134 } 135 } 136 } 137 138 void visit_type_uint32(Visitor *v, uint32_t *obj, const char *name, Error **errp) 139 { 140 int64_t value; 141 if (!error_is_set(errp)) { 142 if (v->type_uint32) { 143 v->type_uint32(v, obj, name, errp); 144 } else { 145 value = *obj; 146 v->type_int(v, &value, name, errp); 147 if (value < 0 || value > UINT32_MAX) { 148 error_set(errp, QERR_INVALID_PARAMETER_VALUE, name ? name : "null", 149 "uint32_t"); 150 return; 151 } 152 *obj = value; 153 } 154 } 155 } 156 157 void visit_type_uint64(Visitor *v, uint64_t *obj, const char *name, Error **errp) 158 { 159 int64_t value; 160 if (!error_is_set(errp)) { 161 if (v->type_uint64) { 162 v->type_uint64(v, obj, name, errp); 163 } else { 164 value = *obj; 165 v->type_int(v, &value, name, errp); 166 *obj = value; 167 } 168 } 169 } 170 171 void visit_type_int8(Visitor *v, int8_t *obj, const char *name, Error **errp) 172 { 173 int64_t value; 174 if (!error_is_set(errp)) { 175 if (v->type_int8) { 176 v->type_int8(v, obj, name, errp); 177 } else { 178 value = *obj; 179 v->type_int(v, &value, name, errp); 180 if (value < INT8_MIN || value > INT8_MAX) { 181 error_set(errp, QERR_INVALID_PARAMETER_VALUE, name ? name : "null", 182 "int8_t"); 183 return; 184 } 185 *obj = value; 186 } 187 } 188 } 189 190 void visit_type_int16(Visitor *v, int16_t *obj, const char *name, Error **errp) 191 { 192 int64_t value; 193 if (!error_is_set(errp)) { 194 if (v->type_int16) { 195 v->type_int16(v, obj, name, errp); 196 } else { 197 value = *obj; 198 v->type_int(v, &value, name, errp); 199 if (value < INT16_MIN || value > INT16_MAX) { 200 error_set(errp, QERR_INVALID_PARAMETER_VALUE, name ? name : "null", 201 "int16_t"); 202 return; 203 } 204 *obj = value; 205 } 206 } 207 } 208 209 void visit_type_int32(Visitor *v, int32_t *obj, const char *name, Error **errp) 210 { 211 int64_t value; 212 if (!error_is_set(errp)) { 213 if (v->type_int32) { 214 v->type_int32(v, obj, name, errp); 215 } else { 216 value = *obj; 217 v->type_int(v, &value, name, errp); 218 if (value < INT32_MIN || value > INT32_MAX) { 219 error_set(errp, QERR_INVALID_PARAMETER_VALUE, name ? name : "null", 220 "int32_t"); 221 return; 222 } 223 *obj = value; 224 } 225 } 226 } 227 228 void visit_type_int64(Visitor *v, int64_t *obj, const char *name, Error **errp) 229 { 230 if (!error_is_set(errp)) { 231 if (v->type_int64) { 232 v->type_int64(v, obj, name, errp); 233 } else { 234 v->type_int(v, obj, name, errp); 235 } 236 } 237 } 238 239 void visit_type_size(Visitor *v, uint64_t *obj, const char *name, Error **errp) 240 { 241 if (!error_is_set(errp)) { 242 (v->type_size ? v->type_size : v->type_uint64)(v, obj, name, errp); 243 } 244 } 245 246 void visit_type_bool(Visitor *v, bool *obj, const char *name, Error **errp) 247 { 248 if (!error_is_set(errp)) { 249 v->type_bool(v, obj, name, errp); 250 } 251 } 252 253 void visit_type_str(Visitor *v, char **obj, const char *name, Error **errp) 254 { 255 if (!error_is_set(errp)) { 256 v->type_str(v, obj, name, errp); 257 } 258 } 259 260 void visit_type_number(Visitor *v, double *obj, const char *name, Error **errp) 261 { 262 if (!error_is_set(errp)) { 263 v->type_number(v, obj, name, errp); 264 } 265 } 266 267 void output_type_enum(Visitor *v, int *obj, const char *strings[], 268 const char *kind, const char *name, 269 Error **errp) 270 { 271 int i = 0; 272 int value = *obj; 273 char *enum_str; 274 275 assert(strings); 276 while (strings[i++] != NULL); 277 if (value < 0 || value >= i - 1) { 278 error_set(errp, QERR_INVALID_PARAMETER, name ? name : "null"); 279 return; 280 } 281 282 enum_str = (char *)strings[value]; 283 visit_type_str(v, &enum_str, name, errp); 284 } 285 286 void input_type_enum(Visitor *v, int *obj, const char *strings[], 287 const char *kind, const char *name, 288 Error **errp) 289 { 290 int64_t value = 0; 291 char *enum_str; 292 293 assert(strings); 294 295 visit_type_str(v, &enum_str, name, errp); 296 if (error_is_set(errp)) { 297 return; 298 } 299 300 while (strings[value] != NULL) { 301 if (strcmp(strings[value], enum_str) == 0) { 302 break; 303 } 304 value++; 305 } 306 307 if (strings[value] == NULL) { 308 error_set(errp, QERR_INVALID_PARAMETER, enum_str); 309 g_free(enum_str); 310 return; 311 } 312 313 g_free(enum_str); 314 *obj = value; 315 } 316