| 1 | /* This file is part of the Linux Trace Toolkit viewer |
| 2 | * Copyright (C) 2003-2004 Xiangxiu Yang, Mathieu Desnoyers |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License Version 2 as |
| 6 | * published by the Free Software Foundation; |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License |
| 14 | * along with this program; if not, write to the Free Software |
| 15 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
| 16 | * MA 02111-1307, USA. |
| 17 | */ |
| 18 | |
| 19 | #ifdef HAVE_CONFIG_H |
| 20 | #include <config.h> |
| 21 | #endif |
| 22 | |
| 23 | #include <stdio.h> |
| 24 | #include <glib.h> |
| 25 | |
| 26 | #include "parser.h" |
| 27 | #include <ltt/ltt.h> |
| 28 | #include "ltt-private.h" |
| 29 | #include <ltt/type.h> |
| 30 | |
| 31 | static unsigned intSizes[] = { |
| 32 | sizeof(int8_t), sizeof(int16_t), sizeof(int32_t), sizeof(int64_t), |
| 33 | sizeof(short) }; |
| 34 | |
| 35 | typedef enum _intSizesNames { SIZE_INT8, SIZE_INT16, SIZE_INT32, |
| 36 | SIZE_INT64, SIZE_SHORT, INT_SIZES_NUMBER } |
| 37 | intSizesNames; |
| 38 | |
| 39 | |
| 40 | static unsigned floatSizes[] = { |
| 41 | 0, 0, sizeof(float), sizeof(double), 0, sizeof(float), sizeof(double) }; |
| 42 | |
| 43 | #define FLOAT_SIZES_NUMBER 7 |
| 44 | |
| 45 | |
| 46 | /***************************************************************************** |
| 47 | *Function name |
| 48 | * ltt_eventtype_name : get the name of the event type |
| 49 | *Input params |
| 50 | * et : an event type |
| 51 | *Return value |
| 52 | * GQuark : the name of the event type |
| 53 | ****************************************************************************/ |
| 54 | |
| 55 | GQuark ltt_eventtype_name(LttEventType *et) |
| 56 | { |
| 57 | return et->name; |
| 58 | } |
| 59 | |
| 60 | /***************************************************************************** |
| 61 | *Function name |
| 62 | * ltt_eventtype_description : get the description of the event type |
| 63 | *Input params |
| 64 | * et : an event type |
| 65 | *Return value |
| 66 | * char * : the description of the event type |
| 67 | ****************************************************************************/ |
| 68 | |
| 69 | gchar *ltt_eventtype_description(LttEventType *et) |
| 70 | { |
| 71 | return et->description; |
| 72 | } |
| 73 | |
| 74 | /***************************************************************************** |
| 75 | *Function name |
| 76 | * ltt_eventtype_facility : get the facility which contains the event type |
| 77 | *Input params |
| 78 | * et : an event type |
| 79 | *Return value |
| 80 | * LttFacility * : the facility |
| 81 | ****************************************************************************/ |
| 82 | |
| 83 | LttFacility *ltt_eventtype_facility(LttEventType *et) |
| 84 | { |
| 85 | return et->facility; |
| 86 | } |
| 87 | |
| 88 | /***************************************************************************** |
| 89 | *Function name |
| 90 | * ltt_eventtype_id : get the id of the event type |
| 91 | *Input params |
| 92 | * et : an event type |
| 93 | *Return value |
| 94 | * unsigned : the id |
| 95 | ****************************************************************************/ |
| 96 | |
| 97 | guint8 ltt_eventtype_id(LttEventType *et) |
| 98 | { |
| 99 | return et->index; |
| 100 | } |
| 101 | |
| 102 | /***************************************************************************** |
| 103 | *Function name |
| 104 | * ltt_eventtype_type : get the type of the event type |
| 105 | *Input params |
| 106 | * et : an event type |
| 107 | *Return value |
| 108 | * LttType * : the type of the event type |
| 109 | ****************************************************************************/ |
| 110 | |
| 111 | LttType *ltt_eventtype_type(LttEventType *et) |
| 112 | { |
| 113 | if(unlikely(!et->root_field)) return NULL; |
| 114 | else return et->root_field->field_type; |
| 115 | } |
| 116 | |
| 117 | /***************************************************************************** |
| 118 | *Function name |
| 119 | * ltt_eventtype_field : get the root filed of the event type |
| 120 | *Input params |
| 121 | * et : an event type |
| 122 | *Return value |
| 123 | * LttField * : the root filed of the event type |
| 124 | ****************************************************************************/ |
| 125 | |
| 126 | LttField *ltt_eventtype_field(LttEventType *et) |
| 127 | { |
| 128 | return et->root_field; |
| 129 | } |
| 130 | |
| 131 | /***************************************************************************** |
| 132 | *Function name |
| 133 | * ltt_type_name : get the name of the type |
| 134 | *Input params |
| 135 | * t : a type |
| 136 | *Return value |
| 137 | * char * : the name of the type |
| 138 | ****************************************************************************/ |
| 139 | |
| 140 | GQuark ltt_type_name(LttType *t) |
| 141 | { |
| 142 | return t->element_name; |
| 143 | } |
| 144 | |
| 145 | /***************************************************************************** |
| 146 | *Function name |
| 147 | * ltt_type_class : get the type class of the type |
| 148 | *Input params |
| 149 | * t : a type |
| 150 | *Return value |
| 151 | * LttTypeEnum : the type class of the type |
| 152 | ****************************************************************************/ |
| 153 | |
| 154 | LttTypeEnum ltt_type_class(LttType *t) |
| 155 | { |
| 156 | return t->type_class; |
| 157 | } |
| 158 | |
| 159 | /***************************************************************************** |
| 160 | *Function name |
| 161 | * ltt_type_size : obtain the type size. The size is the number of bytes |
| 162 | * for primitive types (INT, UINT, FLOAT, ENUM) |
| 163 | * or the size for the unsigned integer length count for |
| 164 | * sequences |
| 165 | *Input params |
| 166 | * tf : trace file |
| 167 | * t : a type |
| 168 | *Return value |
| 169 | * : the type size |
| 170 | * returns 0 if erroneous, and show a critical warning message. |
| 171 | ****************************************************************************/ |
| 172 | |
| 173 | size_t ltt_type_size(LttTrace * trace, LttType *t) |
| 174 | { |
| 175 | size_t size; |
| 176 | |
| 177 | switch(t->type_class) { |
| 178 | |
| 179 | case LTT_INT: |
| 180 | case LTT_UINT: |
| 181 | case LTT_SEQUENCE: |
| 182 | case LTT_ENUM: |
| 183 | if(likely(t->size < INT_SIZES_NUMBER)) |
| 184 | size = intSizes[t->size]; |
| 185 | else |
| 186 | goto error; |
| 187 | break; |
| 188 | case LTT_FLOAT: |
| 189 | if(likely(t->size < FLOAT_SIZES_NUMBER)) |
| 190 | size = floatSizes[t->size]; |
| 191 | else |
| 192 | goto error; |
| 193 | break; |
| 194 | case LTT_POINTER: |
| 195 | case LTT_LONG: |
| 196 | case LTT_ULONG: |
| 197 | case LTT_SIZE_T: |
| 198 | case LTT_SSIZE_T: |
| 199 | case LTT_OFF_T: |
| 200 | case LTT_STRING: |
| 201 | case LTT_ARRAY: |
| 202 | case LTT_STRUCT: |
| 203 | case LTT_UNION: |
| 204 | goto error; |
| 205 | break; |
| 206 | } |
| 207 | |
| 208 | return size; |
| 209 | |
| 210 | |
| 211 | error: |
| 212 | g_warning("no size known for the type"); |
| 213 | return 0; |
| 214 | } |
| 215 | |
| 216 | /***************************************************************************** |
| 217 | *Function name |
| 218 | * ltt_type_element_type : obtain the type of nested elements for arrays |
| 219 | * and sequences |
| 220 | *Input params |
| 221 | * t : a type |
| 222 | *Return value |
| 223 | * LttType : the type of nested element of array or sequence |
| 224 | ****************************************************************************/ |
| 225 | |
| 226 | LttType *ltt_type_element_type(LttType *t) |
| 227 | { |
| 228 | LttType *element_type; |
| 229 | |
| 230 | if(unlikely(t->type_class != LTT_ARRAY && t->type_class != LTT_SEQUENCE)) |
| 231 | element_type = NULL; |
| 232 | else |
| 233 | element_type = t->element_type[0]; |
| 234 | |
| 235 | return element_type; |
| 236 | } |
| 237 | |
| 238 | /***************************************************************************** |
| 239 | *Function name |
| 240 | * ltt_type_element_number : obtain the number of elements for arrays |
| 241 | *Input params |
| 242 | * t : a type |
| 243 | *Return value |
| 244 | * unsigned : the number of elements for arrays |
| 245 | ****************************************************************************/ |
| 246 | |
| 247 | unsigned ltt_type_element_number(LttType *t) |
| 248 | { |
| 249 | unsigned ret = 0; |
| 250 | |
| 251 | if(likely(t->type_class == LTT_ARRAY)) |
| 252 | ret = t->element_number; |
| 253 | |
| 254 | return ret; |
| 255 | } |
| 256 | |
| 257 | /***************************************************************************** |
| 258 | *Function name |
| 259 | * ltt_type_member_number : obtain the number of data members for structure |
| 260 | *Input params |
| 261 | * t : a type |
| 262 | *Return value |
| 263 | * unsigned : the number of members for structure |
| 264 | ****************************************************************************/ |
| 265 | |
| 266 | unsigned ltt_type_member_number(LttType *t) |
| 267 | { |
| 268 | unsigned ret = 0; |
| 269 | |
| 270 | if(likely(t->type_class == LTT_STRUCT || t->type_class == LTT_UNION)) |
| 271 | ret =t->element_number; |
| 272 | |
| 273 | return ret; |
| 274 | } |
| 275 | |
| 276 | /***************************************************************************** |
| 277 | *Function name |
| 278 | * ltt_type_member_type : obtain the type of a data member in a structure |
| 279 | * or union. |
| 280 | *Input params |
| 281 | * t : a type |
| 282 | * i : index of the member |
| 283 | *Return value |
| 284 | * LttType * : the type of structure member |
| 285 | ****************************************************************************/ |
| 286 | |
| 287 | LttType *ltt_type_member_type(LttType *t, unsigned i, GQuark *name) |
| 288 | { |
| 289 | LttType *member_type = NULL; |
| 290 | |
| 291 | if(unlikely( (t->type_class != LTT_STRUCT |
| 292 | && t->type_class != LTT_UNION) |
| 293 | || |
| 294 | (i >= t->element_number) |
| 295 | )) { |
| 296 | *name = 0; |
| 297 | } else { |
| 298 | *name = t->element_type[i]->element_name; |
| 299 | member_type = t->element_type[i]; |
| 300 | } |
| 301 | |
| 302 | return member_type; |
| 303 | } |
| 304 | |
| 305 | /***************************************************************************** |
| 306 | *Function name |
| 307 | * ltt_enum_string_get : for enumerations, obtain the symbolic string |
| 308 | * associated with a value (0 to n - 1 for an |
| 309 | * enumeration of n elements) |
| 310 | *Input params |
| 311 | * t : a type |
| 312 | * i : index of the member |
| 313 | *Return value |
| 314 | * char * : symbolic string associated with a value |
| 315 | ****************************************************************************/ |
| 316 | |
| 317 | GQuark ltt_enum_string_get(LttType *t, unsigned i) |
| 318 | { |
| 319 | if(likely(t->type_class == LTT_ENUM && i < t->element_number)) |
| 320 | return t->enum_strings[i]; |
| 321 | else |
| 322 | return 0; |
| 323 | } |
| 324 | |
| 325 | /***************************************************************************** |
| 326 | *Function name |
| 327 | * ltt_field_element : obtain the field of nested elements for arrays and |
| 328 | * sequence |
| 329 | *Input params |
| 330 | * f : a field |
| 331 | *Return value |
| 332 | * LttField * : the field of the nested element |
| 333 | ****************************************************************************/ |
| 334 | |
| 335 | LttField *ltt_field_element(LttField *f) |
| 336 | { |
| 337 | LttField *nest = NULL; |
| 338 | |
| 339 | if(likely(f->field_type->type_class == LTT_ARRAY || |
| 340 | f->field_type->type_class == LTT_SEQUENCE)) |
| 341 | nest = f->child[0]; |
| 342 | |
| 343 | return nest; |
| 344 | } |
| 345 | |
| 346 | /***************************************************************************** |
| 347 | *Function name |
| 348 | * ltt_field_member : obtain the field of data members for structure |
| 349 | *Input params |
| 350 | * f : a field |
| 351 | * i : index of member field |
| 352 | *Return value |
| 353 | * LttField * : the field of the nested element |
| 354 | ****************************************************************************/ |
| 355 | |
| 356 | LttField *ltt_field_member(LttField *f, unsigned i) |
| 357 | { |
| 358 | LttField *field_member; |
| 359 | |
| 360 | g_assert(f->field_type->type_class == LTT_STRUCT || |
| 361 | f->field_type->type_class == LTT_UNION); |
| 362 | g_assert(i < f->field_type->element_number); |
| 363 | #if 0 |
| 364 | if(unlikely( f->field_type->type_class != LTT_STRUCT |
| 365 | && f->field_type->type_class != LTT_UNION) |
| 366 | || i >= f->field_type->element_number ) |
| 367 | field_member = NULL; |
| 368 | else |
| 369 | #endif //0 |
| 370 | field_member = f->child[i]; |
| 371 | |
| 372 | return field_member; |
| 373 | } |
| 374 | |
| 375 | /***************************************************************************** |
| 376 | *Function name |
| 377 | * ltt_field_type : obtain the type of the field |
| 378 | *Input params |
| 379 | * f : a field |
| 380 | *Return value |
| 381 | * ltt_tyoe * : the type of field |
| 382 | ****************************************************************************/ |
| 383 | |
| 384 | LttType *ltt_field_type(LttField *f) |
| 385 | { |
| 386 | if(unlikely(!f))return NULL; |
| 387 | return f->field_type; |
| 388 | } |
| 389 | |
| 390 | int ltt_field_size(LttField * f) |
| 391 | { |
| 392 | if(unlikely(!f))return 0; |
| 393 | return f->field_size; |
| 394 | } |