| 1 | /* |
| 2 | |
| 3 | parser.c: Generate helper declarations and functions to trace events |
| 4 | from an event description file. |
| 5 | |
| 6 | Copyright (C) 2002, Xianxiu Yang |
| 7 | Copyright (C) 2002, Michel Dagenais |
| 8 | This program is free software; you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation; version 2 of the License. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 20 | */ |
| 21 | |
| 22 | /* This program reads the ".xml" event definitions input files |
| 23 | and constructs structure for each event. |
| 24 | |
| 25 | The program uses a very simple tokenizer, called from a hand written |
| 26 | recursive descent parser to fill a data structure describing the events. |
| 27 | The result is a sequence of events definitions which refer to type |
| 28 | definitions. |
| 29 | |
| 30 | A table of named types is maintained to allow refering to types by name |
| 31 | when the same type is used at several places. Finally a sequence of |
| 32 | all types is maintained to facilitate the freeing of all type |
| 33 | information when the processing of an ".xml" file is finished. */ |
| 34 | |
| 35 | #include <stdlib.h> |
| 36 | #include <string.h> |
| 37 | #include <stdio.h> |
| 38 | #include <stdarg.h> |
| 39 | #include <linux/errno.h> |
| 40 | #include <assert.h> |
| 41 | |
| 42 | |
| 43 | #include "parser.h" |
| 44 | |
| 45 | |
| 46 | /* helper function */ |
| 47 | void strupper(char *string) |
| 48 | { |
| 49 | char *ptr = string; |
| 50 | |
| 51 | while(*ptr != '\0') { |
| 52 | *ptr = toupper(*ptr); |
| 53 | ptr++; |
| 54 | } |
| 55 | } |
| 56 | |
| 57 | |
| 58 | int getSizeindex(int value) |
| 59 | { |
| 60 | switch(value) { |
| 61 | case 1: |
| 62 | return 0; |
| 63 | case 2: |
| 64 | return 1; |
| 65 | case 4: |
| 66 | return 2; |
| 67 | case 8: |
| 68 | return 3; |
| 69 | default: |
| 70 | printf("Error : unknown value size %d\n", value); |
| 71 | exit(-1); |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | /***************************************************************************** |
| 76 | *Function name |
| 77 | * getSize : translate from string to integer |
| 78 | *Input params |
| 79 | * in : input file handle |
| 80 | *Return values |
| 81 | * size |
| 82 | *****************************************************************************/ |
| 83 | |
| 84 | int getSize(parse_file *in) |
| 85 | { |
| 86 | char *token; |
| 87 | |
| 88 | token = getToken(in); |
| 89 | if(in->type == NUMBER) { |
| 90 | if(strcmp(token,"1") == 0) return 0; |
| 91 | else if(strcmp(token,"2") == 0) return 1; |
| 92 | else if(strcmp(token,"4") == 0) return 2; |
| 93 | else if(strcmp(token,"8") == 0) return 3; |
| 94 | } |
| 95 | else if(in->type == NAME) { |
| 96 | if(strcmp(token,"short") == 0) return 4; |
| 97 | else if(strcmp(token,"medium") == 0) return 5; |
| 98 | else if(strcmp(token,"long") == 0) return 6; |
| 99 | } |
| 100 | in->error(in,"incorrect size specification"); |
| 101 | return -1; |
| 102 | } |
| 103 | |
| 104 | /***************************************************************************** |
| 105 | *Function name |
| 106 | * error_callback : print out error info |
| 107 | *Input params |
| 108 | * in : input file handle |
| 109 | * msg : message to be printed |
| 110 | ****************************************************************************/ |
| 111 | |
| 112 | void error_callback(parse_file *in, char *msg) |
| 113 | { |
| 114 | if(in) |
| 115 | printf("Error in file %s, line %d: %s\n", in->name, in->lineno, msg); |
| 116 | else |
| 117 | printf("%s\n",msg); |
| 118 | assert(0); |
| 119 | exit(1); |
| 120 | } |
| 121 | |
| 122 | /***************************************************************************** |
| 123 | *Function name |
| 124 | * memAlloc : allocate memory |
| 125 | *Input params |
| 126 | * size : required memory size |
| 127 | *return value |
| 128 | * void * : pointer to allocate memory or NULL |
| 129 | ****************************************************************************/ |
| 130 | |
| 131 | void * memAlloc(int size) |
| 132 | { |
| 133 | void * addr; |
| 134 | if(size == 0) return NULL; |
| 135 | addr = malloc(size); |
| 136 | if(!addr){ |
| 137 | printf("Failed to allocate memory"); |
| 138 | exit(1); |
| 139 | } |
| 140 | return addr; |
| 141 | } |
| 142 | |
| 143 | /***************************************************************************** |
| 144 | *Function name |
| 145 | * allocAndCopy : allocate memory and initialize it |
| 146 | *Input params |
| 147 | * str : string to be put in memory |
| 148 | *return value |
| 149 | * char * : pointer to allocate memory or NULL |
| 150 | ****************************************************************************/ |
| 151 | |
| 152 | char *allocAndCopy(char *str) |
| 153 | { |
| 154 | char * addr; |
| 155 | if(str == NULL) return NULL; |
| 156 | addr = (char *)memAlloc(strlen(str)+1); |
| 157 | strcpy(addr,str); |
| 158 | return addr; |
| 159 | } |
| 160 | |
| 161 | /************************************************************************** |
| 162 | * Function : |
| 163 | * getTypeAttributes |
| 164 | * Description : |
| 165 | * Read the attribute from the input file. |
| 166 | * |
| 167 | * Parameters : |
| 168 | * in , input file handle. |
| 169 | * t , the type descriptor to fill. |
| 170 | * |
| 171 | **************************************************************************/ |
| 172 | |
| 173 | void getTypeAttributes(parse_file *in, type_descriptor *t) |
| 174 | { |
| 175 | char * token; |
| 176 | char car; |
| 177 | |
| 178 | t->fmt = NULL; |
| 179 | t->size = -1; |
| 180 | t->alignment = 0; |
| 181 | |
| 182 | while(1) { |
| 183 | token = getToken(in); |
| 184 | if(strcmp("/",token) == 0 || strcmp(">",token) == 0){ |
| 185 | ungetToken(in); |
| 186 | break; |
| 187 | } |
| 188 | |
| 189 | if(!strcmp("format",token)) { |
| 190 | getEqual(in); |
| 191 | t->fmt = allocAndCopy(getQuotedString(in)); |
| 192 | //} else if(!strcmp("name",token)) { |
| 193 | // getEqual(in); |
| 194 | // car = seekNextChar(in); |
| 195 | // if(car == EOF) in->error(in,"name was expected"); |
| 196 | // else if(car == '\"') t->type_name = allocAndCopy(getQuotedString(in)); |
| 197 | // else t->type_name = allocAndCopy(getName(in)); |
| 198 | } else if(!strcmp("size",token)) { |
| 199 | getEqual(in); |
| 200 | t->size = getSize(in); |
| 201 | } else if(!strcmp("align",token)) { |
| 202 | getEqual(in); |
| 203 | t->alignment = getNumber(in); |
| 204 | } |
| 205 | } |
| 206 | } |
| 207 | |
| 208 | /************************************************************************** |
| 209 | * Function : |
| 210 | * getEventAttributes |
| 211 | * Description : |
| 212 | * Read the attribute from the input file. |
| 213 | * |
| 214 | * Parameters : |
| 215 | * in , input file handle. |
| 216 | * ev , the event to fill. |
| 217 | * |
| 218 | **************************************************************************/ |
| 219 | |
| 220 | void getEventAttributes(parse_file *in, event *ev) |
| 221 | { |
| 222 | char * token; |
| 223 | char car; |
| 224 | |
| 225 | ev->name = NULL; |
| 226 | |
| 227 | while(1) { |
| 228 | token = getToken(in); |
| 229 | if(strcmp("/",token) == 0 || strcmp(">",token) == 0){ |
| 230 | ungetToken(in); |
| 231 | break; |
| 232 | } |
| 233 | |
| 234 | if(!strcmp("name",token)) { |
| 235 | getEqual(in); |
| 236 | car = seekNextChar(in); |
| 237 | if(car == EOF) in->error(in,"name was expected"); |
| 238 | else if(car == '\"') ev->name = allocAndCopy(getQuotedString(in)); |
| 239 | else ev->name = allocAndCopy(getName(in)); |
| 240 | } |
| 241 | } |
| 242 | } |
| 243 | |
| 244 | /************************************************************************** |
| 245 | * Function : |
| 246 | * getFacilityAttributes |
| 247 | * Description : |
| 248 | * Read the attribute from the input file. |
| 249 | * |
| 250 | * Parameters : |
| 251 | * in , input file handle. |
| 252 | * fac , the facility to fill. |
| 253 | * |
| 254 | **************************************************************************/ |
| 255 | |
| 256 | void getFacilityAttributes(parse_file *in, facility *fac) |
| 257 | { |
| 258 | char * token; |
| 259 | char car; |
| 260 | |
| 261 | fac->name = NULL; |
| 262 | |
| 263 | while(1) { |
| 264 | token = getToken(in); |
| 265 | if(strcmp("/",token) == 0 || strcmp(">",token) == 0){ |
| 266 | ungetToken(in); |
| 267 | break; |
| 268 | } |
| 269 | |
| 270 | if(!strcmp("name",token)) { |
| 271 | getEqual(in); |
| 272 | car = seekNextChar(in); |
| 273 | if(car == EOF) in->error(in,"name was expected"); |
| 274 | else if(car == '\"') fac->name = allocAndCopy(getQuotedString(in)); |
| 275 | else fac->name = allocAndCopy(getName(in)); |
| 276 | } |
| 277 | } |
| 278 | } |
| 279 | |
| 280 | /************************************************************************** |
| 281 | * Function : |
| 282 | * getFieldAttributes |
| 283 | * Description : |
| 284 | * Read the attribute from the input file. |
| 285 | * |
| 286 | * Parameters : |
| 287 | * in , input file handle. |
| 288 | * f , the field to fill. |
| 289 | * |
| 290 | **************************************************************************/ |
| 291 | |
| 292 | void getFieldAttributes(parse_file *in, field *f) |
| 293 | { |
| 294 | char * token; |
| 295 | char car; |
| 296 | |
| 297 | f->name = NULL; |
| 298 | |
| 299 | while(1) { |
| 300 | token = getToken(in); |
| 301 | if(strcmp("/",token) == 0 || strcmp(">",token) == 0){ |
| 302 | ungetToken(in); |
| 303 | break; |
| 304 | } |
| 305 | |
| 306 | if(!strcmp("name",token)) { |
| 307 | getEqual(in); |
| 308 | car = seekNextChar(in); |
| 309 | if(car == EOF) in->error(in,"name was expected"); |
| 310 | else if(car == '\"') f->name = allocAndCopy(getQuotedString(in)); |
| 311 | else f->name = allocAndCopy(getName(in)); |
| 312 | } |
| 313 | } |
| 314 | } |
| 315 | |
| 316 | char *getNameAttribute(parse_file *in) |
| 317 | { |
| 318 | char * token; |
| 319 | char *name = NULL; |
| 320 | char car; |
| 321 | |
| 322 | while(1) { |
| 323 | token = getToken(in); |
| 324 | if(strcmp("/",token) == 0 || strcmp(">",token) == 0){ |
| 325 | ungetToken(in); |
| 326 | break; |
| 327 | } |
| 328 | |
| 329 | if(!strcmp("name",token)) { |
| 330 | getEqual(in); |
| 331 | car = seekNextChar(in); |
| 332 | if(car == EOF) in->error(in,"name was expected"); |
| 333 | else if(car == '\"') name = allocAndCopy(getQuotedString(in)); |
| 334 | else name = allocAndCopy(getName(in)); |
| 335 | } |
| 336 | } |
| 337 | if(name == NULL) in->error(in, "Name was expected"); |
| 338 | return name; |
| 339 | |
| 340 | } |
| 341 | |
| 342 | |
| 343 | |
| 344 | //for <label name=label_name value=n format="..."/>, value is an option |
| 345 | char * getValueStrAttribute(parse_file *in) |
| 346 | { |
| 347 | char * token; |
| 348 | |
| 349 | token = getToken(in); |
| 350 | if(strcmp("/",token) == 0){ |
| 351 | ungetToken(in); |
| 352 | return NULL; |
| 353 | } |
| 354 | |
| 355 | if(strcmp("value",token))in->error(in,"value was expected"); |
| 356 | getEqual(in); |
| 357 | token = getToken(in); |
| 358 | if(in->type != NUMBER) in->error(in,"number was expected"); |
| 359 | return token; |
| 360 | } |
| 361 | |
| 362 | char * getDescription(parse_file *in) |
| 363 | { |
| 364 | long int pos; |
| 365 | char * token, car, *str; |
| 366 | |
| 367 | pos = ftell(in->fp); |
| 368 | |
| 369 | getLAnglebracket(in); |
| 370 | token = getName(in); |
| 371 | if(strcmp("description",token)){ |
| 372 | fseek(in->fp, pos, SEEK_SET); |
| 373 | return NULL; |
| 374 | } |
| 375 | |
| 376 | getRAnglebracket(in); |
| 377 | |
| 378 | pos = 0; |
| 379 | while((car = getc(in->fp)) != EOF) { |
| 380 | if(car == '<') break; |
| 381 | if(car == '\0') continue; |
| 382 | in->buffer[pos] = car; |
| 383 | pos++; |
| 384 | } |
| 385 | if(car == EOF)in->error(in,"not a valid description"); |
| 386 | in->buffer[pos] = '\0'; |
| 387 | |
| 388 | str = allocAndCopy(in->buffer); |
| 389 | |
| 390 | getForwardslash(in); |
| 391 | token = getName(in); |
| 392 | if(strcmp("description", token))in->error(in,"not a valid description"); |
| 393 | getRAnglebracket(in); |
| 394 | |
| 395 | return str; |
| 396 | } |
| 397 | |
| 398 | /***************************************************************************** |
| 399 | *Function name |
| 400 | * parseFacility : generate event list |
| 401 | *Input params |
| 402 | * in : input file handle |
| 403 | * fac : empty facility |
| 404 | *Output params |
| 405 | * fac : facility filled with event list |
| 406 | ****************************************************************************/ |
| 407 | |
| 408 | void parseFacility(parse_file *in, facility * fac) |
| 409 | { |
| 410 | char * token; |
| 411 | event *ev; |
| 412 | |
| 413 | getFacilityAttributes(in, fac); |
| 414 | if(fac->name == NULL) in->error(in, "Attribute not named"); |
| 415 | |
| 416 | fac->capname = allocAndCopy(fac->name); |
| 417 | strupper(fac->capname); |
| 418 | getRAnglebracket(in); |
| 419 | |
| 420 | fac->description = getDescription(in); |
| 421 | |
| 422 | while(1){ |
| 423 | getLAnglebracket(in); |
| 424 | |
| 425 | token = getToken(in); |
| 426 | if(in->type == ENDFILE) |
| 427 | in->error(in,"the definition of the facility is not finished"); |
| 428 | |
| 429 | if(strcmp("event",token) == 0){ |
| 430 | ev = (event*) memAlloc(sizeof(event)); |
| 431 | sequence_push(&(fac->events),ev); |
| 432 | parseEvent(in,ev, &(fac->unnamed_types), &(fac->named_types)); |
| 433 | }else if(strcmp("type",token) == 0){ |
| 434 | parseTypeDefinition(in, &(fac->unnamed_types), &(fac->named_types)); |
| 435 | }else if(in->type == FORWARDSLASH){ |
| 436 | break; |
| 437 | }else in->error(in,"event or type token expected\n"); |
| 438 | } |
| 439 | |
| 440 | token = getName(in); |
| 441 | if(strcmp("facility",token)) in->error(in,"not the end of the facility"); |
| 442 | getRAnglebracket(in); //</facility> |
| 443 | } |
| 444 | |
| 445 | /***************************************************************************** |
| 446 | *Function name |
| 447 | * parseEvent : generate event from event definition |
| 448 | *Input params |
| 449 | * in : input file handle |
| 450 | * ev : new event |
| 451 | * unnamed_types : array of unamed types |
| 452 | * named_types : array of named types |
| 453 | *Output params |
| 454 | * ev : new event (parameters are passed to it) |
| 455 | ****************************************************************************/ |
| 456 | |
| 457 | void parseEvent(parse_file *in, event * ev, sequence * unnamed_types, |
| 458 | table * named_types) |
| 459 | { |
| 460 | char *token; |
| 461 | type_descriptor *t; |
| 462 | |
| 463 | //<event name=eventtype_name> |
| 464 | getEventAttributes(in, ev); |
| 465 | if(ev->name == NULL) in->error(in, "Event not named"); |
| 466 | getRAnglebracket(in); |
| 467 | |
| 468 | //<description>...</descriptio> |
| 469 | ev->description = getDescription(in); |
| 470 | |
| 471 | //event can have STRUCT, TYPEREF or NOTHING |
| 472 | getLAnglebracket(in); |
| 473 | |
| 474 | token = getToken(in); |
| 475 | if(in->type == FORWARDSLASH){ //</event> NOTHING |
| 476 | ev->type = NULL; |
| 477 | }else if(in->type == NAME){ |
| 478 | if(strcmp("struct",token)==0 || strcmp("typeref",token)==0){ |
| 479 | ungetToken(in); |
| 480 | ev->type = parseType(in,NULL, unnamed_types, named_types); |
| 481 | if(ev->type->type != STRUCT && ev->type->type != NONE) |
| 482 | in->error(in,"type must be a struct"); |
| 483 | }else in->error(in, "not a valid type"); |
| 484 | |
| 485 | getLAnglebracket(in); |
| 486 | getForwardslash(in); |
| 487 | }else in->error(in,"not a struct type"); |
| 488 | |
| 489 | token = getName(in); |
| 490 | if(strcmp("event",token))in->error(in,"not an event definition"); |
| 491 | getRAnglebracket(in); //</event> |
| 492 | } |
| 493 | |
| 494 | /***************************************************************************** |
| 495 | *Function name |
| 496 | * parseField : get field infomation from buffer |
| 497 | *Input params |
| 498 | * in : input file handle |
| 499 | * t : type descriptor |
| 500 | * unnamed_types : array of unamed types |
| 501 | * named_types : array of named types |
| 502 | ****************************************************************************/ |
| 503 | |
| 504 | void parseFields(parse_file *in, type_descriptor *t, sequence * unnamed_types, |
| 505 | table * named_types) |
| 506 | { |
| 507 | char * token; |
| 508 | field *f; |
| 509 | |
| 510 | f = (field *)memAlloc(sizeof(field)); |
| 511 | sequence_push(&(t->fields),f); |
| 512 | |
| 513 | //<field name=field_name> <description> <type> </field> |
| 514 | getFieldAttributes(in, f); |
| 515 | if(f->name == NULL) in->error(in, "Field not named"); |
| 516 | getRAnglebracket(in); |
| 517 | |
| 518 | f->description = getDescription(in); |
| 519 | |
| 520 | //<int size=...> |
| 521 | getLAnglebracket(in); |
| 522 | f->type = parseType(in,NULL, unnamed_types, named_types); |
| 523 | |
| 524 | getLAnglebracket(in); |
| 525 | getForwardslash(in); |
| 526 | token = getName(in); |
| 527 | if(strcmp("field",token))in->error(in,"not a valid field definition"); |
| 528 | getRAnglebracket(in); //</field> |
| 529 | } |
| 530 | |
| 531 | |
| 532 | /***************************************************************************** |
| 533 | *Function name |
| 534 | * parseType : get type information, type can be : |
| 535 | * Primitive: |
| 536 | * int(size,fmt); uint(size,fmt); float(size,fmt); |
| 537 | * string(fmt); enum(size,fmt,(label1,label2...)) |
| 538 | * Compound: |
| 539 | * array(arraySize, type); sequence(lengthSize,type) |
| 540 | * struct(field(name,type,description)...) |
| 541 | * type name: |
| 542 | * type(name,type) |
| 543 | *Input params |
| 544 | * in : input file handle |
| 545 | * inType : a type descriptor |
| 546 | * unnamed_types : array of unamed types |
| 547 | * named_types : array of named types |
| 548 | *Return values |
| 549 | * type_descriptor* : a type descriptor |
| 550 | ****************************************************************************/ |
| 551 | |
| 552 | type_descriptor *parseType(parse_file *in, type_descriptor *inType, |
| 553 | sequence * unnamed_types, table * named_types) |
| 554 | { |
| 555 | char *token; |
| 556 | type_descriptor *t; |
| 557 | |
| 558 | if(inType == NULL) { |
| 559 | t = (type_descriptor *) memAlloc(sizeof(type_descriptor)); |
| 560 | t->type_name = NULL; |
| 561 | t->type = NONE; |
| 562 | t->fmt = NULL; |
| 563 | sequence_push(unnamed_types,t); |
| 564 | } |
| 565 | else t = inType; |
| 566 | |
| 567 | token = getName(in); |
| 568 | |
| 569 | if(strcmp(token,"struct") == 0) { |
| 570 | t->type = STRUCT; |
| 571 | getTypeAttributes(in, t); |
| 572 | getRAnglebracket(in); //<struct> |
| 573 | getLAnglebracket(in); //<field name=..> |
| 574 | token = getToken(in); |
| 575 | sequence_init(&(t->fields)); |
| 576 | while(strcmp("field",token) == 0){ |
| 577 | parseFields(in,t, unnamed_types, named_types); |
| 578 | |
| 579 | //next field |
| 580 | getLAnglebracket(in); |
| 581 | token = getToken(in); |
| 582 | } |
| 583 | if(strcmp("/",token))in->error(in,"not a valid structure definition"); |
| 584 | token = getName(in); |
| 585 | if(strcmp("struct",token)!=0) |
| 586 | in->error(in,"not a valid structure definition"); |
| 587 | getRAnglebracket(in); //</struct> |
| 588 | } |
| 589 | else if(strcmp(token,"union") == 0) { |
| 590 | t->type = UNION; |
| 591 | getTypeAttributes(in, t); |
| 592 | if(t->size == -1) in->error(in, "Union has empty size"); |
| 593 | getRAnglebracket(in); //<union typecodesize=isize> |
| 594 | |
| 595 | getLAnglebracket(in); //<field name=..> |
| 596 | token = getToken(in); |
| 597 | sequence_init(&(t->fields)); |
| 598 | while(strcmp("field",token) == 0){ |
| 599 | parseFields(in,t, unnamed_types, named_types); |
| 600 | |
| 601 | //next field |
| 602 | getLAnglebracket(in); |
| 603 | token = getToken(in); |
| 604 | } |
| 605 | if(strcmp("/",token))in->error(in,"not a valid union definition"); |
| 606 | token = getName(in); |
| 607 | if(strcmp("union",token)!=0) |
| 608 | in->error(in,"not a valid union definition"); |
| 609 | getRAnglebracket(in); //</union> |
| 610 | } |
| 611 | else if(strcmp(token,"array") == 0) { |
| 612 | t->type = ARRAY; |
| 613 | getTypeAttributes(in, t); |
| 614 | if(t->size == -1) in->error(in, "Array has empty size"); |
| 615 | getRAnglebracket(in); //<array size=n> |
| 616 | |
| 617 | getLAnglebracket(in); //<type struct> |
| 618 | t->nested_type = parseType(in, NULL, unnamed_types, named_types); |
| 619 | |
| 620 | getLAnglebracket(in); //</array> |
| 621 | getForwardslash(in); |
| 622 | token = getName(in); |
| 623 | if(strcmp("array",token))in->error(in,"not a valid array definition"); |
| 624 | getRAnglebracket(in); //</array> |
| 625 | } |
| 626 | else if(strcmp(token,"sequence") == 0) { |
| 627 | t->type = SEQUENCE; |
| 628 | getTypeAttributes(in, t); |
| 629 | if(t->size == -1) in->error(in, "Sequence has empty size"); |
| 630 | getRAnglebracket(in); //<array lengthsize=isize> |
| 631 | |
| 632 | getLAnglebracket(in); //<type struct> |
| 633 | t->nested_type = parseType(in,NULL, unnamed_types, named_types); |
| 634 | |
| 635 | getLAnglebracket(in); //</sequence> |
| 636 | getForwardslash(in); |
| 637 | token = getName(in); |
| 638 | if(strcmp("sequence",token))in->error(in,"not a valid sequence definition"); |
| 639 | getRAnglebracket(in); //</sequence> |
| 640 | } |
| 641 | else if(strcmp(token,"enum") == 0) { |
| 642 | char * str, *str1; |
| 643 | t->type = ENUM; |
| 644 | sequence_init(&(t->labels)); |
| 645 | sequence_init(&(t->labels_description)); |
| 646 | t->already_printed = 0; |
| 647 | getTypeAttributes(in, t); |
| 648 | if(t->size == -1) in->error(in, "Sequence has empty size"); |
| 649 | getRAnglebracket(in); |
| 650 | |
| 651 | //<label name=label1 value=n/> |
| 652 | getLAnglebracket(in); |
| 653 | token = getToken(in); //"label" or "/" |
| 654 | while(strcmp("label",token) == 0){ |
| 655 | str = allocAndCopy(getNameAttribute(in)); |
| 656 | token = getValueStrAttribute(in); |
| 657 | if(token){ |
| 658 | str1 = appendString(str,"="); |
| 659 | free(str); |
| 660 | str = appendString(str1,token); |
| 661 | free(str1); |
| 662 | sequence_push(&(t->labels),str); |
| 663 | } |
| 664 | else |
| 665 | sequence_push(&(t->labels),str); |
| 666 | |
| 667 | getForwardslash(in); |
| 668 | getRAnglebracket(in); |
| 669 | |
| 670 | //read description if any. May be NULL. |
| 671 | str = allocAndCopy(getDescription(in)); |
| 672 | sequence_push(&(t->labels_description),str); |
| 673 | |
| 674 | //next label definition |
| 675 | getLAnglebracket(in); |
| 676 | token = getToken(in); //"label" or "/" |
| 677 | } |
| 678 | if(strcmp("/",token))in->error(in, "not a valid enum definition"); |
| 679 | token = getName(in); |
| 680 | if(strcmp("enum",token))in->error(in, "not a valid enum definition"); |
| 681 | getRAnglebracket(in); //</label> |
| 682 | } |
| 683 | else if(strcmp(token,"int") == 0) { |
| 684 | t->type = INT; |
| 685 | getTypeAttributes(in, t); |
| 686 | if(t->size == -1) in->error(in, "int has empty size"); |
| 687 | getForwardslash(in); |
| 688 | getRAnglebracket(in); |
| 689 | } |
| 690 | else if(strcmp(token,"uint") == 0) { |
| 691 | t->type = UINT; |
| 692 | getTypeAttributes(in, t); |
| 693 | if(t->size == -1) in->error(in, "uint has empty size"); |
| 694 | getForwardslash(in); |
| 695 | getRAnglebracket(in); |
| 696 | } |
| 697 | else if(strcmp(token,"pointer") == 0) { |
| 698 | t->type = POINTER; |
| 699 | getTypeAttributes(in, t); |
| 700 | getForwardslash(in); |
| 701 | getRAnglebracket(in); |
| 702 | } |
| 703 | else if(strcmp(token,"long") == 0) { |
| 704 | t->type = LONG; |
| 705 | getTypeAttributes(in, t); |
| 706 | getForwardslash(in); |
| 707 | getRAnglebracket(in); |
| 708 | } |
| 709 | else if(strcmp(token,"ulong") == 0) { |
| 710 | t->type = ULONG; |
| 711 | getTypeAttributes(in, t); |
| 712 | getForwardslash(in); |
| 713 | getRAnglebracket(in); |
| 714 | } |
| 715 | else if(strcmp(token,"size_t") == 0) { |
| 716 | t->type = SIZE_T; |
| 717 | getTypeAttributes(in, t); |
| 718 | getForwardslash(in); |
| 719 | getRAnglebracket(in); |
| 720 | } |
| 721 | else if(strcmp(token,"ssize_t") == 0) { |
| 722 | t->type = SSIZE_T; |
| 723 | getTypeAttributes(in, t); |
| 724 | getForwardslash(in); |
| 725 | getRAnglebracket(in); |
| 726 | } |
| 727 | else if(strcmp(token,"off_t") == 0) { |
| 728 | t->type = OFF_T; |
| 729 | getTypeAttributes(in, t); |
| 730 | getForwardslash(in); |
| 731 | getRAnglebracket(in); |
| 732 | } |
| 733 | else if(strcmp(token,"float") == 0) { |
| 734 | t->type = FLOAT; |
| 735 | getTypeAttributes(in, t); |
| 736 | getForwardslash(in); |
| 737 | getRAnglebracket(in); |
| 738 | } |
| 739 | else if(strcmp(token,"string") == 0) { |
| 740 | t->type = STRING; |
| 741 | getTypeAttributes(in, t); |
| 742 | getForwardslash(in); |
| 743 | getRAnglebracket(in); |
| 744 | } |
| 745 | else if(strcmp(token,"typeref") == 0){ |
| 746 | // Must be a named type |
| 747 | if(inType != NULL) |
| 748 | in->error(in,"Named type cannot refer to a named type"); |
| 749 | else { |
| 750 | free(t); |
| 751 | sequence_pop(unnamed_types); |
| 752 | token = getNameAttribute(in); |
| 753 | t = find_named_type(token, named_types); |
| 754 | getForwardslash(in); //<typeref name=type_name/> |
| 755 | getRAnglebracket(in); |
| 756 | return t; |
| 757 | } |
| 758 | }else in->error(in,"not a valid type"); |
| 759 | |
| 760 | return t; |
| 761 | } |
| 762 | |
| 763 | /***************************************************************************** |
| 764 | *Function name |
| 765 | * find_named_type : find a named type from hash table |
| 766 | *Input params |
| 767 | * name : type name |
| 768 | * named_types : array of named types |
| 769 | *Return values |
| 770 | * type_descriptor * : a type descriptor |
| 771 | *****************************************************************************/ |
| 772 | |
| 773 | type_descriptor * find_named_type(char *name, table * named_types) |
| 774 | { |
| 775 | type_descriptor *t; |
| 776 | |
| 777 | t = table_find(named_types,name); |
| 778 | if(t == NULL) { |
| 779 | t = (type_descriptor *)memAlloc(sizeof(type_descriptor)); |
| 780 | t->type_name = allocAndCopy(name); |
| 781 | t->type = NONE; |
| 782 | t->fmt = NULL; |
| 783 | table_insert(named_types,t->type_name,t); |
| 784 | // table_insert(named_types,allocAndCopy(name),t); |
| 785 | } |
| 786 | return t; |
| 787 | } |
| 788 | |
| 789 | /***************************************************************************** |
| 790 | *Function name |
| 791 | * parseTypeDefinition : get type information from type definition |
| 792 | *Input params |
| 793 | * in : input file handle |
| 794 | * unnamed_types : array of unamed types |
| 795 | * named_types : array of named types |
| 796 | *****************************************************************************/ |
| 797 | |
| 798 | void parseTypeDefinition(parse_file * in, sequence * unnamed_types, |
| 799 | table * named_types) |
| 800 | { |
| 801 | char *token; |
| 802 | type_descriptor *t; |
| 803 | |
| 804 | token = getNameAttribute(in); |
| 805 | if(token == NULL) in->error(in, "Type has empty name"); |
| 806 | t = find_named_type(token, named_types); |
| 807 | |
| 808 | if(t->type != NONE) in->error(in,"redefinition of named type"); |
| 809 | getRAnglebracket(in); //<type name=type_name> |
| 810 | getLAnglebracket(in); //< |
| 811 | token = getName(in); |
| 812 | //MD ??if(strcmp("struct",token))in->error(in,"not a valid type definition"); |
| 813 | ungetToken(in); |
| 814 | parseType(in,t, unnamed_types, named_types); |
| 815 | |
| 816 | //</type> |
| 817 | getLAnglebracket(in); |
| 818 | getForwardslash(in); |
| 819 | token = getName(in); |
| 820 | if(strcmp("type",token))in->error(in,"not a valid type definition"); |
| 821 | getRAnglebracket(in); //</type> |
| 822 | } |
| 823 | |
| 824 | /************************************************************************** |
| 825 | * Function : |
| 826 | * getComa, getName, getNumber, getEqual |
| 827 | * Description : |
| 828 | * Read a token from the input file, check its type, return it scontent. |
| 829 | * |
| 830 | * Parameters : |
| 831 | * in , input file handle. |
| 832 | * |
| 833 | * Return values : |
| 834 | * address of token content. |
| 835 | * |
| 836 | **************************************************************************/ |
| 837 | |
| 838 | char *getName(parse_file * in) |
| 839 | { |
| 840 | char *token; |
| 841 | |
| 842 | token = getToken(in); |
| 843 | if(in->type != NAME) in->error(in,"Name token was expected"); |
| 844 | return token; |
| 845 | } |
| 846 | |
| 847 | int getNumber(parse_file * in) |
| 848 | { |
| 849 | char *token; |
| 850 | |
| 851 | token = getToken(in); |
| 852 | if(in->type != NUMBER) in->error(in, "Number token was expected"); |
| 853 | return atoi(token); |
| 854 | } |
| 855 | |
| 856 | char *getForwardslash(parse_file * in) |
| 857 | { |
| 858 | char *token; |
| 859 | |
| 860 | token = getToken(in); |
| 861 | if(in->type != FORWARDSLASH) in->error(in, "forward slash token was expected"); |
| 862 | return token; |
| 863 | } |
| 864 | |
| 865 | char *getLAnglebracket(parse_file * in) |
| 866 | { |
| 867 | char *token; |
| 868 | |
| 869 | token = getToken(in); |
| 870 | if(in->type != LANGLEBRACKET) in->error(in, "Left angle bracket was expected"); |
| 871 | return token; |
| 872 | } |
| 873 | |
| 874 | char *getRAnglebracket(parse_file * in) |
| 875 | { |
| 876 | char *token; |
| 877 | |
| 878 | token = getToken(in); |
| 879 | if(in->type != RANGLEBRACKET) in->error(in, "Right angle bracket was expected"); |
| 880 | return token; |
| 881 | } |
| 882 | |
| 883 | char *getQuotedString(parse_file * in) |
| 884 | { |
| 885 | char *token; |
| 886 | |
| 887 | token = getToken(in); |
| 888 | if(in->type != QUOTEDSTRING) in->error(in, "quoted string was expected"); |
| 889 | return token; |
| 890 | } |
| 891 | |
| 892 | char * getEqual(parse_file *in) |
| 893 | { |
| 894 | char *token; |
| 895 | |
| 896 | token = getToken(in); |
| 897 | if(in->type != EQUAL) in->error(in, "equal was expected"); |
| 898 | return token; |
| 899 | } |
| 900 | |
| 901 | char seekNextChar(parse_file *in) |
| 902 | { |
| 903 | char car; |
| 904 | while((car = getc(in->fp)) != EOF) { |
| 905 | if(!isspace(car)){ |
| 906 | ungetc(car,in->fp); |
| 907 | return car; |
| 908 | } |
| 909 | } |
| 910 | return EOF; |
| 911 | } |
| 912 | |
| 913 | /****************************************************************** |
| 914 | * Function : |
| 915 | * getToken, ungetToken |
| 916 | * Description : |
| 917 | * Read a token from the input file and return its type and content. |
| 918 | * Line numbers are accounted for and whitespace/comments are skipped. |
| 919 | * |
| 920 | * Parameters : |
| 921 | * in, input file handle. |
| 922 | * |
| 923 | * Return values : |
| 924 | * address of token content. |
| 925 | * |
| 926 | ******************************************************************/ |
| 927 | |
| 928 | void ungetToken(parse_file * in) |
| 929 | { |
| 930 | in->unget = 1; |
| 931 | } |
| 932 | |
| 933 | char *getToken(parse_file * in) |
| 934 | { |
| 935 | FILE *fp = in->fp; |
| 936 | char car, car1; |
| 937 | int pos = 0, escaped; |
| 938 | |
| 939 | if(in->unget == 1) { |
| 940 | in->unget = 0; |
| 941 | return in->buffer; |
| 942 | } |
| 943 | |
| 944 | /* skip whitespace and comments */ |
| 945 | |
| 946 | while((car = getc(fp)) != EOF) { |
| 947 | if(car == '/') { |
| 948 | car1 = getc(fp); |
| 949 | if(car1 == '*') skipComment(in); |
| 950 | else if(car1 == '/') skipEOL(in); |
| 951 | else { |
| 952 | car1 = ungetc(car1,fp); |
| 953 | break; |
| 954 | } |
| 955 | } |
| 956 | else if(car == '\n') in->lineno++; |
| 957 | else if(!isspace(car)) break; |
| 958 | } |
| 959 | |
| 960 | switch(car) { |
| 961 | case EOF: |
| 962 | in->type = ENDFILE; |
| 963 | break; |
| 964 | case '/': |
| 965 | in->type = FORWARDSLASH; |
| 966 | in->buffer[pos] = car; |
| 967 | pos++; |
| 968 | break; |
| 969 | case '<': |
| 970 | in->type = LANGLEBRACKET; |
| 971 | in->buffer[pos] = car; |
| 972 | pos++; |
| 973 | break; |
| 974 | case '>': |
| 975 | in->type = RANGLEBRACKET; |
| 976 | in->buffer[pos] = car; |
| 977 | pos++; |
| 978 | break; |
| 979 | case '=': |
| 980 | in->type = EQUAL; |
| 981 | in->buffer[pos] = car; |
| 982 | pos++; |
| 983 | break; |
| 984 | case '"': |
| 985 | escaped = 0; |
| 986 | while((car = getc(fp)) != EOF && pos < BUFFER_SIZE) { |
| 987 | if(car == '\\' && escaped == 0) { |
| 988 | in->buffer[pos] = car; |
| 989 | pos++; |
| 990 | escaped = 1; |
| 991 | continue; |
| 992 | } |
| 993 | if(car == '"' && escaped == 0) break; |
| 994 | if(car == '\n' && escaped == 0) { |
| 995 | in->error(in, "non escaped newline inside quoted string"); |
| 996 | } |
| 997 | if(car == '\n') in->lineno++; |
| 998 | in->buffer[pos] = car; |
| 999 | pos++; |
| 1000 | escaped = 0; |
| 1001 | } |
| 1002 | if(car == EOF) in->error(in,"no ending quotemark"); |
| 1003 | if(pos == BUFFER_SIZE) in->error(in, "quoted string token too large"); |
| 1004 | in->type = QUOTEDSTRING; |
| 1005 | break; |
| 1006 | default: |
| 1007 | if(isdigit(car)) { |
| 1008 | in->buffer[pos] = car; |
| 1009 | pos++; |
| 1010 | while((car = getc(fp)) != EOF && pos < BUFFER_SIZE) { |
| 1011 | if(!isdigit(car)) { |
| 1012 | ungetc(car,fp); |
| 1013 | break; |
| 1014 | } |
| 1015 | in->buffer[pos] = car; |
| 1016 | pos++; |
| 1017 | } |
| 1018 | if(car == EOF) ungetc(car,fp); |
| 1019 | if(pos == BUFFER_SIZE) in->error(in, "number token too large"); |
| 1020 | in->type = NUMBER; |
| 1021 | } |
| 1022 | else if(isalpha(car)) { |
| 1023 | in->buffer[0] = car; |
| 1024 | pos = 1; |
| 1025 | while((car = getc(fp)) != EOF && pos < BUFFER_SIZE) { |
| 1026 | if(!(isalnum(car) || car == '_')) { |
| 1027 | ungetc(car,fp); |
| 1028 | break; |
| 1029 | } |
| 1030 | in->buffer[pos] = car; |
| 1031 | pos++; |
| 1032 | } |
| 1033 | if(car == EOF) ungetc(car,fp); |
| 1034 | if(pos == BUFFER_SIZE) in->error(in, "name token too large"); |
| 1035 | in->type = NAME; |
| 1036 | } |
| 1037 | else in->error(in, "invalid character, unrecognized token"); |
| 1038 | } |
| 1039 | in->buffer[pos] = 0; |
| 1040 | return in->buffer; |
| 1041 | } |
| 1042 | |
| 1043 | void skipComment(parse_file * in) |
| 1044 | { |
| 1045 | char car; |
| 1046 | while((car = getc(in->fp)) != EOF) { |
| 1047 | if(car == '\n') in->lineno++; |
| 1048 | else if(car == '*') { |
| 1049 | car = getc(in->fp); |
| 1050 | if(car ==EOF) break; |
| 1051 | if(car == '/') return; |
| 1052 | ungetc(car,in->fp); |
| 1053 | } |
| 1054 | } |
| 1055 | if(car == EOF) in->error(in,"comment begining with '/*' has no ending '*/'"); |
| 1056 | } |
| 1057 | |
| 1058 | void skipEOL(parse_file * in) |
| 1059 | { |
| 1060 | char car; |
| 1061 | while((car = getc(in->fp)) != EOF) { |
| 1062 | if(car == '\n') { |
| 1063 | ungetc(car,in->fp); |
| 1064 | break; |
| 1065 | } |
| 1066 | } |
| 1067 | if(car == EOF)ungetc(car, in->fp); |
| 1068 | } |
| 1069 | |
| 1070 | /***************************************************************************** |
| 1071 | *Function name |
| 1072 | * checkNamedTypesImplemented : check if all named types have definition |
| 1073 | ****************************************************************************/ |
| 1074 | |
| 1075 | void checkNamedTypesImplemented(table * named_types) |
| 1076 | { |
| 1077 | type_descriptor *t; |
| 1078 | int pos; |
| 1079 | char str[256]; |
| 1080 | |
| 1081 | for(pos = 0 ; pos < named_types->values.position; pos++) { |
| 1082 | t = (type_descriptor *) named_types->values.array[pos]; |
| 1083 | if(t->type == NONE){ |
| 1084 | sprintf(str,"named type '%s' has no definition",(char*)named_types->keys.array[pos]); |
| 1085 | error_callback(NULL,str); |
| 1086 | } |
| 1087 | } |
| 1088 | } |
| 1089 | |
| 1090 | |
| 1091 | /***************************************************************************** |
| 1092 | *Function name |
| 1093 | * generateChecksum : generate checksum for the facility |
| 1094 | *Input Params |
| 1095 | * facName : name of facility |
| 1096 | *Output Params |
| 1097 | * checksum : checksum for the facility |
| 1098 | ****************************************************************************/ |
| 1099 | |
| 1100 | void generateChecksum( char* facName, unsigned long * checksum, sequence * events) |
| 1101 | { |
| 1102 | unsigned long crc ; |
| 1103 | int pos; |
| 1104 | event * ev; |
| 1105 | char str[256]; |
| 1106 | |
| 1107 | crc = crc32(facName); |
| 1108 | for(pos = 0; pos < events->position; pos++){ |
| 1109 | ev = (event *)(events->array[pos]); |
| 1110 | crc = partial_crc32(ev->name,crc); |
| 1111 | if(!ev->type) continue; //event without type |
| 1112 | if(ev->type->type != STRUCT){ |
| 1113 | sprintf(str,"event '%s' has a type other than STRUCT",ev->name); |
| 1114 | error_callback(NULL, str); |
| 1115 | } |
| 1116 | crc = getTypeChecksum(crc, ev->type); |
| 1117 | } |
| 1118 | *checksum = crc; |
| 1119 | } |
| 1120 | |
| 1121 | /***************************************************************************** |
| 1122 | *Function name |
| 1123 | * getTypeChecksum : generate checksum by type info |
| 1124 | *Input Params |
| 1125 | * crc : checksum generated so far |
| 1126 | * type : type descriptor containing type info |
| 1127 | *Return value |
| 1128 | * unsigned long : checksum |
| 1129 | *****************************************************************************/ |
| 1130 | |
| 1131 | unsigned long getTypeChecksum(unsigned long aCrc, type_descriptor * type) |
| 1132 | { |
| 1133 | unsigned long crc = aCrc; |
| 1134 | char * str = NULL, buf[16]; |
| 1135 | int flag = 0, pos; |
| 1136 | field * fld; |
| 1137 | |
| 1138 | switch(type->type){ |
| 1139 | case INT: |
| 1140 | str = intOutputTypes[type->size]; |
| 1141 | break; |
| 1142 | case UINT: |
| 1143 | str = uintOutputTypes[type->size]; |
| 1144 | break; |
| 1145 | case POINTER: |
| 1146 | str = allocAndCopy("void *"); |
| 1147 | flag = 1; |
| 1148 | break; |
| 1149 | case LONG: |
| 1150 | str = allocAndCopy("long"); |
| 1151 | flag = 1; |
| 1152 | break; |
| 1153 | case ULONG: |
| 1154 | str = allocAndCopy("unsigned long"); |
| 1155 | flag = 1; |
| 1156 | break; |
| 1157 | case SIZE_T: |
| 1158 | str = allocAndCopy("size_t"); |
| 1159 | flag = 1; |
| 1160 | break; |
| 1161 | case SSIZE_T: |
| 1162 | str = allocAndCopy("ssize_t"); |
| 1163 | flag = 1; |
| 1164 | break; |
| 1165 | case OFF_T: |
| 1166 | str = allocAndCopy("off_t"); |
| 1167 | flag = 1; |
| 1168 | break; |
| 1169 | case FLOAT: |
| 1170 | str = floatOutputTypes[type->size]; |
| 1171 | break; |
| 1172 | case STRING: |
| 1173 | str = allocAndCopy("string"); |
| 1174 | flag = 1; |
| 1175 | break; |
| 1176 | case ENUM: |
| 1177 | str = appendString("enum ", uintOutputTypes[type->size]); |
| 1178 | flag = 1; |
| 1179 | break; |
| 1180 | case ARRAY: |
| 1181 | sprintf(buf,"%d\0",type->size); |
| 1182 | str = appendString("array ",buf); |
| 1183 | flag = 1; |
| 1184 | break; |
| 1185 | case SEQUENCE: |
| 1186 | sprintf(buf,"%d\0",type->size); |
| 1187 | str = appendString("sequence ",buf); |
| 1188 | flag = 1; |
| 1189 | break; |
| 1190 | case STRUCT: |
| 1191 | str = allocAndCopy("struct"); |
| 1192 | flag = 1; |
| 1193 | break; |
| 1194 | case UNION: |
| 1195 | str = allocAndCopy("union"); |
| 1196 | flag = 1; |
| 1197 | break; |
| 1198 | default: |
| 1199 | error_callback(NULL, "named type has no definition"); |
| 1200 | break; |
| 1201 | } |
| 1202 | |
| 1203 | crc = partial_crc32(str,crc); |
| 1204 | if(flag) free(str); |
| 1205 | |
| 1206 | if(type->fmt) crc = partial_crc32(type->fmt,crc); |
| 1207 | |
| 1208 | if(type->type == ARRAY || type->type == SEQUENCE){ |
| 1209 | crc = getTypeChecksum(crc,type->nested_type); |
| 1210 | }else if(type->type == STRUCT || type->type == UNION){ |
| 1211 | for(pos =0; pos < type->fields.position; pos++){ |
| 1212 | fld = (field *) type->fields.array[pos]; |
| 1213 | crc = partial_crc32(fld->name,crc); |
| 1214 | crc = getTypeChecksum(crc, fld->type); |
| 1215 | } |
| 1216 | }else if(type->type == ENUM){ |
| 1217 | for(pos = 0; pos < type->labels.position; pos++) |
| 1218 | crc = partial_crc32((char*)type->labels.array[pos],crc); |
| 1219 | } |
| 1220 | |
| 1221 | return crc; |
| 1222 | } |
| 1223 | |
| 1224 | |
| 1225 | /* Event type descriptors */ |
| 1226 | void freeType(type_descriptor * tp) |
| 1227 | { |
| 1228 | int pos2; |
| 1229 | field *f; |
| 1230 | |
| 1231 | if(tp->fmt != NULL) free(tp->fmt); |
| 1232 | if(tp->type == ENUM) { |
| 1233 | for(pos2 = 0; pos2 < tp->labels.position; pos2++) { |
| 1234 | free(tp->labels.array[pos2]); |
| 1235 | } |
| 1236 | sequence_dispose(&(tp->labels)); |
| 1237 | } |
| 1238 | if(tp->type == STRUCT) { |
| 1239 | for(pos2 = 0; pos2 < tp->fields.position; pos2++) { |
| 1240 | f = (field *) tp->fields.array[pos2]; |
| 1241 | free(f->name); |
| 1242 | free(f->description); |
| 1243 | free(f); |
| 1244 | } |
| 1245 | sequence_dispose(&(tp->fields)); |
| 1246 | } |
| 1247 | } |
| 1248 | |
| 1249 | void freeNamedType(table * t) |
| 1250 | { |
| 1251 | int pos; |
| 1252 | type_descriptor * td; |
| 1253 | |
| 1254 | for(pos = 0 ; pos < t->keys.position; pos++) { |
| 1255 | free((char *)t->keys.array[pos]); |
| 1256 | td = (type_descriptor*)t->values.array[pos]; |
| 1257 | freeType(td); |
| 1258 | free(td); |
| 1259 | } |
| 1260 | } |
| 1261 | |
| 1262 | void freeTypes(sequence *t) |
| 1263 | { |
| 1264 | int pos, pos2; |
| 1265 | type_descriptor *tp; |
| 1266 | field *f; |
| 1267 | |
| 1268 | for(pos = 0 ; pos < t->position; pos++) { |
| 1269 | tp = (type_descriptor *)t->array[pos]; |
| 1270 | freeType(tp); |
| 1271 | free(tp); |
| 1272 | } |
| 1273 | } |
| 1274 | |
| 1275 | void freeEvents(sequence *t) |
| 1276 | { |
| 1277 | int pos; |
| 1278 | event *ev; |
| 1279 | |
| 1280 | for(pos = 0 ; pos < t->position; pos++) { |
| 1281 | ev = (event *) t->array[pos]; |
| 1282 | free(ev->name); |
| 1283 | free(ev->description); |
| 1284 | free(ev); |
| 1285 | } |
| 1286 | |
| 1287 | } |
| 1288 | |
| 1289 | |
| 1290 | /* Extensible array */ |
| 1291 | |
| 1292 | void sequence_init(sequence *t) |
| 1293 | { |
| 1294 | t->size = 10; |
| 1295 | t->position = 0; |
| 1296 | t->array = (void **)memAlloc(t->size * sizeof(void *)); |
| 1297 | } |
| 1298 | |
| 1299 | void sequence_dispose(sequence *t) |
| 1300 | { |
| 1301 | t->size = 0; |
| 1302 | free(t->array); |
| 1303 | t->array = NULL; |
| 1304 | } |
| 1305 | |
| 1306 | void sequence_push(sequence *t, void *elem) |
| 1307 | { |
| 1308 | void **tmp; |
| 1309 | |
| 1310 | if(t->position >= t->size) { |
| 1311 | tmp = t->array; |
| 1312 | t->array = (void **)memAlloc(t->size * 2 * sizeof(void *)); |
| 1313 | memcpy(t->array, tmp, t->size * sizeof(void *)); |
| 1314 | t->size = t->size * 2; |
| 1315 | free(tmp); |
| 1316 | } |
| 1317 | t->array[t->position] = elem; |
| 1318 | t->position++; |
| 1319 | } |
| 1320 | |
| 1321 | void *sequence_pop(sequence *t) |
| 1322 | { |
| 1323 | return t->array[t->position--]; |
| 1324 | } |
| 1325 | |
| 1326 | |
| 1327 | /* Hash table API, implementation is just linear search for now */ |
| 1328 | |
| 1329 | void table_init(table *t) |
| 1330 | { |
| 1331 | sequence_init(&(t->keys)); |
| 1332 | sequence_init(&(t->values)); |
| 1333 | } |
| 1334 | |
| 1335 | void table_dispose(table *t) |
| 1336 | { |
| 1337 | sequence_dispose(&(t->keys)); |
| 1338 | sequence_dispose(&(t->values)); |
| 1339 | } |
| 1340 | |
| 1341 | void table_insert(table *t, char *key, void *value) |
| 1342 | { |
| 1343 | sequence_push(&(t->keys),key); |
| 1344 | sequence_push(&(t->values),value); |
| 1345 | } |
| 1346 | |
| 1347 | void *table_find(table *t, char *key) |
| 1348 | { |
| 1349 | int pos; |
| 1350 | for(pos = 0 ; pos < t->keys.position; pos++) { |
| 1351 | if(strcmp((char *)key,(char *)t->keys.array[pos]) == 0) |
| 1352 | return(t->values.array[pos]); |
| 1353 | } |
| 1354 | return NULL; |
| 1355 | } |
| 1356 | |
| 1357 | void table_insert_int(table *t, int *key, void *value) |
| 1358 | { |
| 1359 | sequence_push(&(t->keys),key); |
| 1360 | sequence_push(&(t->values),value); |
| 1361 | } |
| 1362 | |
| 1363 | void *table_find_int(table *t, int *key) |
| 1364 | { |
| 1365 | int pos; |
| 1366 | for(pos = 0 ; pos < t->keys.position; pos++) { |
| 1367 | if(*key == *(int *)t->keys.array[pos]) |
| 1368 | return(t->values.array[pos]); |
| 1369 | } |
| 1370 | return NULL; |
| 1371 | } |
| 1372 | |
| 1373 | |
| 1374 | /* Concatenate strings */ |
| 1375 | |
| 1376 | char *appendString(char *s, char *suffix) |
| 1377 | { |
| 1378 | char *tmp; |
| 1379 | if(suffix == NULL) return s; |
| 1380 | |
| 1381 | tmp = (char *)memAlloc(strlen(s) + strlen(suffix) + 1); |
| 1382 | strcpy(tmp,s); |
| 1383 | strcat(tmp,suffix); |
| 1384 | return tmp; |
| 1385 | } |
| 1386 | |
| 1387 | |