3583026d |
1 | /* |
2 | |
3 | parser.c: Generate helper declarations and functions to trace events |
4 | from an event description file. |
5 | |
a3e6ce64 |
6 | Copyright (C) 2005, Mathieu Desnoyers |
7 | Copyright (C) 2002, Xianxiu Yang |
8 | Copyright (C) 2002, Michel Dagenais |
9 | This program is free software; you can redistribute it and/or modify |
3583026d |
10 | it under the terms of the GNU General Public License as published by |
a3e6ce64 |
11 | the Free Software Foundation; version 2 of the License. |
3583026d |
12 | |
a3e6ce64 |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
3583026d |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 | GNU General Public License for more details. |
17 | |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software |
20 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
21 | */ |
22 | |
23 | /* This program reads the ".xml" event definitions input files |
24 | and constructs structure for each event. |
25 | |
26 | The program uses a very simple tokenizer, called from a hand written |
27 | recursive descent parser to fill a data structure describing the events. |
28 | The result is a sequence of events definitions which refer to type |
29 | definitions. |
30 | |
31 | A table of named types is maintained to allow refering to types by name |
32 | when the same type is used at several places. Finally a sequence of |
33 | all types is maintained to facilitate the freeing of all type |
34 | information when the processing of an ".xml" file is finished. */ |
35 | |
36 | #include <stdlib.h> |
37 | #include <string.h> |
38 | #include <stdio.h> |
39 | #include <stdarg.h> |
40 | #include <linux/errno.h> |
41 | #include <assert.h> |
42 | #include <ctype.h> |
43 | |
44 | #include "parser.h" |
45 | |
46 | |
2d2d14a7 |
47 | char *intOutputTypes[] = { |
48 | "int8_t", "int16_t", "int32_t", "int64_t" }; |
3583026d |
49 | |
2d2d14a7 |
50 | char *uintOutputTypes[] = { |
51 | "uint8_t", "uint16_t", "uint32_t", "uint64_t" }; |
3583026d |
52 | |
2d2d14a7 |
53 | char *floatOutputTypes[] = { |
54 | "undef", "undef", "float", "double" }; |
3583026d |
55 | |
56 | |
57 | |
58 | |
59 | /* helper function */ |
60 | void strupper(char *string) |
61 | { |
62 | char *ptr = string; |
63 | |
64 | while(*ptr != '\0') { |
65 | *ptr = toupper(*ptr); |
66 | ptr++; |
67 | } |
68 | } |
69 | |
70 | |
2d2d14a7 |
71 | int getSizeindex(unsigned int value) |
3583026d |
72 | { |
73 | switch(value) { |
74 | case 1: |
75 | return 0; |
76 | case 2: |
77 | return 1; |
78 | case 4: |
79 | return 2; |
80 | case 8: |
81 | return 3; |
82 | default: |
83 | printf("Error : unknown value size %d\n", value); |
84 | exit(-1); |
85 | } |
86 | } |
87 | |
88 | /***************************************************************************** |
89 | *Function name |
90 | * getSize : translate from string to integer |
91 | *Input params |
92 | * in : input file handle |
93 | *Return values |
94 | * size |
95 | *****************************************************************************/ |
96 | |
2d2d14a7 |
97 | unsigned long long int getSize(parse_file_t *in) |
3583026d |
98 | { |
f389e596 |
99 | char *token, *token2; |
bb9014e6 |
100 | unsigned long long int ret; |
3583026d |
101 | |
102 | token = getToken(in); |
f389e596 |
103 | |
104 | |
105 | if(in->type == QUOTEDSTRING) { |
106 | in->type = NUMBER; |
107 | token2 = token; |
108 | do { |
109 | if (!isdigit(*token2)) { |
110 | in->type = QUOTEDSTRING; |
111 | break; |
112 | } |
113 | } while (*(++token2) != '\0'); |
114 | } |
115 | |
3583026d |
116 | if(in->type == NUMBER) { |
bb9014e6 |
117 | ret = strtoull(token, NULL, 0); |
118 | } else { |
119 | goto error; |
120 | } |
bb9014e6 |
121 | |
122 | return ret; |
123 | error: |
3583026d |
124 | in->error(in,"incorrect size specification"); |
125 | return -1; |
126 | } |
127 | |
128 | /***************************************************************************** |
129 | *Function name |
130 | * error_callback : print out error info |
131 | *Input params |
132 | * in : input file handle |
133 | * msg : message to be printed |
134 | ****************************************************************************/ |
135 | |
136 | void error_callback(parse_file_t *in, char *msg) |
137 | { |
138 | if(in) |
139 | printf("Error in file %s, line %d: %s\n", in->name, in->lineno, msg); |
140 | else |
141 | printf("%s\n",msg); |
142 | assert(0); |
143 | exit(1); |
144 | } |
145 | |
146 | /***************************************************************************** |
147 | *Function name |
148 | * memAlloc : allocate memory |
149 | *Input params |
150 | * size : required memory size |
151 | *return value |
152 | * void * : pointer to allocate memory or NULL |
153 | ****************************************************************************/ |
154 | |
155 | void * memAlloc(int size) |
156 | { |
157 | void * addr; |
158 | if(size == 0) return NULL; |
159 | addr = malloc(size); |
160 | if(!addr){ |
161 | printf("Failed to allocate memory"); |
162 | exit(1); |
163 | } |
164 | return addr; |
165 | } |
166 | |
167 | /***************************************************************************** |
168 | *Function name |
169 | * allocAndCopy : allocate memory and initialize it |
170 | *Input params |
171 | * str : string to be put in memory |
172 | *return value |
173 | * char * : pointer to allocate memory or NULL |
174 | ****************************************************************************/ |
175 | |
176 | char *allocAndCopy(char *str) |
177 | { |
178 | char * addr; |
179 | if(str == NULL) return NULL; |
180 | addr = (char *)memAlloc(strlen(str)+1); |
181 | strcpy(addr,str); |
182 | return addr; |
183 | } |
184 | |
185 | /************************************************************************** |
186 | * Function : |
187 | * getTypeAttributes |
188 | * Description : |
189 | * Read the attribute from the input file. |
190 | * |
191 | * Parameters : |
192 | * in , input file handle. |
193 | * t , the type descriptor to fill. |
194 | * |
195 | **************************************************************************/ |
196 | |
be97b953 |
197 | void getTypeAttributes(parse_file_t *in, type_descriptor_t *t, |
198 | sequence_t * unnamed_types, table_t * named_types) |
3583026d |
199 | { |
200 | char * token; |
f389e596 |
201 | char car; |
3583026d |
202 | |
203 | t->fmt = NULL; |
2d2d14a7 |
204 | t->size = 0; |
64a6ab10 |
205 | t->custom_write = 0; |
7479dd85 |
206 | t->network = 0; |
3583026d |
207 | |
208 | while(1) { |
209 | token = getToken(in); |
210 | if(strcmp("/",token) == 0 || strcmp(">",token) == 0){ |
211 | ungetToken(in); |
212 | break; |
213 | } |
214 | |
215 | if(!strcmp("format",token)) { |
216 | getEqual(in); |
217 | t->fmt = allocAndCopy(getQuotedString(in)); |
218 | //} else if(!strcmp("name",token)) { |
219 | // getEqual(in); |
220 | // car = seekNextChar(in); |
221 | // if(car == EOF) in->error(in,"name was expected"); |
222 | // else if(car == '\"') t->type_name = allocAndCopy(getQuotedString(in)); |
223 | // else t->type_name = allocAndCopy(getName(in)); |
be97b953 |
224 | } else if(!strcmp("size",token)) { |
3583026d |
225 | getEqual(in); |
226 | t->size = getSize(in); |
64a6ab10 |
227 | } else if(!strcmp("custom_write", token)) { |
228 | t->custom_write = 1; |
f389e596 |
229 | } else if(!strcmp("byte_order",token)) { |
230 | getEqual(in); |
231 | car = seekNextChar(in); |
232 | if(car == EOF) in->error(in,"byte order was expected (network?)"); |
233 | else if(car == '\"') token = getQuotedString(in); |
234 | else token = getName(in); |
235 | if(!strcmp("network", token)) { |
236 | t->network = 1; |
8729b50b |
237 | } |
f389e596 |
238 | } else if(!strcmp("write",token)) { |
239 | getEqual(in); |
240 | car = seekNextChar(in); |
241 | if(car == EOF) in->error(in,"write type was expected (custom?)"); |
242 | else if(car == '\"') token = getQuotedString(in); |
243 | else token = getName(in); |
8729b50b |
244 | if(!strcmp("custom", token)) { |
245 | t->custom_write = 1; |
246 | } |
f389e596 |
247 | } |
248 | } |
3583026d |
249 | } |
250 | |
251 | /************************************************************************** |
252 | * Function : |
253 | * getEventAttributes |
254 | * Description : |
255 | * Read the attribute from the input file. |
256 | * |
257 | * Parameters : |
258 | * in , input file handle. |
259 | * ev , the event to fill. |
260 | * |
261 | **************************************************************************/ |
262 | |
263 | void getEventAttributes(parse_file_t *in, event_t *ev) |
264 | { |
265 | char * token; |
266 | char car; |
267 | |
268 | ev->name = NULL; |
269 | ev->per_trace = 0; |
270 | ev->per_tracefile = 0; |
1e08067e |
271 | ev->param_buffer = 0; |
4a6829e2 |
272 | ev->no_instrument_function = 0; |
3583026d |
273 | |
274 | while(1) { |
275 | token = getToken(in); |
276 | if(strcmp("/",token) == 0 || strcmp(">",token) == 0){ |
277 | ungetToken(in); |
278 | break; |
279 | } |
280 | |
281 | if(!strcmp("name",token)) { |
282 | getEqual(in); |
283 | car = seekNextChar(in); |
284 | if(car == EOF) in->error(in,"name was expected"); |
285 | else if(car == '\"') ev->name = allocAndCopy(getQuotedString(in)); |
286 | else ev->name = allocAndCopy(getName(in)); |
f389e596 |
287 | } else if(!strcmp("scope", token)) { |
288 | getEqual(in); |
289 | car = seekNextChar(in); |
290 | if(car == EOF) in->error(in,"scope was expected"); |
291 | else if(car == '\"') token = getQuotedString(in); |
292 | else token = getName(in); |
293 | if(!strcmp(token, "trace")) ev->per_trace = 1; |
294 | else if(!strcmp(token, "tracefile")) ev->per_tracefile = 1; |
295 | } else if(!strcmp("param", token)) { |
296 | getEqual(in); |
297 | car = seekNextChar(in); |
298 | if(car == EOF) in->error(in,"parameter type was expected"); |
299 | else if(car == '\"') token = getQuotedString(in); |
300 | else token = getName(in); |
301 | if(!strcmp(token, "buffer")) ev->param_buffer = 1; |
302 | } else if(!strcmp("attribute", token)) { |
303 | getEqual(in); |
304 | car = seekNextChar(in); |
305 | if(car == EOF) in->error(in,"attribute was expected"); |
306 | else if(car == '\"') token = getQuotedString(in); |
307 | else token = getName(in); |
308 | if(!strcmp(token, "no_instrument_function")) |
309 | ev->no_instrument_function = 1; |
310 | } |
3583026d |
311 | } |
312 | } |
313 | |
314 | /************************************************************************** |
315 | * Function : |
316 | * getFacilityAttributes |
317 | * Description : |
318 | * Read the attribute from the input file. |
319 | * |
320 | * Parameters : |
321 | * in , input file handle. |
322 | * fac , the facility to fill. |
323 | * |
324 | **************************************************************************/ |
325 | |
326 | void getFacilityAttributes(parse_file_t *in, facility_t *fac) |
327 | { |
328 | char * token; |
329 | char car; |
330 | |
331 | fac->name = NULL; |
ffaf5031 |
332 | fac->arch = NULL; |
bd7b8ca6 |
333 | fac->user = 0; |
3583026d |
334 | |
335 | while(1) { |
336 | token = getToken(in); |
337 | if(strcmp("/",token) == 0 || strcmp(">",token) == 0){ |
338 | ungetToken(in); |
339 | break; |
340 | } |
341 | |
342 | if(!strcmp("name",token)) { |
343 | getEqual(in); |
344 | car = seekNextChar(in); |
345 | if(car == EOF) in->error(in,"name was expected"); |
346 | else if(car == '\"') fac->name = allocAndCopy(getQuotedString(in)); |
347 | else fac->name = allocAndCopy(getName(in)); |
463fc1ef |
348 | if(!strncmp(fac->name, "user_", sizeof("user_")-1)) |
bd7b8ca6 |
349 | fac->user = 1; |
ffaf5031 |
350 | } else if(!strcmp("arch", token)) { |
351 | getEqual(in); |
352 | car = seekNextChar(in); |
8729b50b |
353 | if(car == '\"') fac->arch = allocAndCopy(getQuotedString(in)); |
ffaf5031 |
354 | else fac->arch = allocAndCopy(getName(in)); |
355 | } |
3583026d |
356 | } |
357 | } |
358 | |
359 | /************************************************************************** |
360 | * Function : |
361 | * getFieldAttributes |
362 | * Description : |
363 | * Read the attribute from the input file. |
364 | * |
365 | * Parameters : |
366 | * in , input file handle. |
367 | * f , the field to fill. |
368 | * |
369 | **************************************************************************/ |
370 | |
371 | void getFieldAttributes(parse_file_t *in, field_t *f) |
372 | { |
373 | char * token; |
374 | char car; |
375 | |
376 | f->name = NULL; |
377 | |
378 | while(1) { |
379 | token = getToken(in); |
380 | if(strcmp("/",token) == 0 || strcmp(">",token) == 0){ |
381 | ungetToken(in); |
382 | break; |
383 | } |
384 | |
385 | if(!strcmp("name",token)) { |
386 | getEqual(in); |
387 | car = seekNextChar(in); |
388 | if(car == EOF) in->error(in,"name was expected"); |
389 | else if(car == '\"') f->name = allocAndCopy(getQuotedString(in)); |
390 | else f->name = allocAndCopy(getName(in)); |
391 | } |
7479dd85 |
392 | } |
3583026d |
393 | } |
394 | |
395 | char *getNameAttribute(parse_file_t *in) |
396 | { |
397 | char * token; |
398 | char *name = NULL; |
399 | char car; |
400 | |
401 | while(1) { |
402 | token = getToken(in); |
3583026d |
403 | if(!strcmp("name",token)) { |
404 | getEqual(in); |
405 | car = seekNextChar(in); |
406 | if(car == EOF) in->error(in,"name was expected"); |
407 | else if(car == '\"') name = allocAndCopy(getQuotedString(in)); |
408 | else name = allocAndCopy(getName(in)); |
64a6ab10 |
409 | } else { |
410 | ungetToken(in); |
411 | break; |
3583026d |
412 | } |
64a6ab10 |
413 | |
3583026d |
414 | } |
415 | if(name == NULL) in->error(in, "Name was expected"); |
416 | return name; |
3583026d |
417 | } |
418 | |
419 | |
420 | |
f389e596 |
421 | //for <label name=label_name value=n format="...">, value is an option |
bb9014e6 |
422 | //Return value : 0 : no value, 1 : has a value |
423 | int getValueAttribute(parse_file_t *in, long long *value) |
3583026d |
424 | { |
f389e596 |
425 | char * token, *token2; |
3583026d |
426 | |
f389e596 |
427 | token = getToken(in); |
428 | |
429 | if(strcmp("/",token) == 0 || strcmp(">", token) == 0){ |
3583026d |
430 | ungetToken(in); |
bb9014e6 |
431 | return 0; |
3583026d |
432 | } |
3583026d |
433 | if(strcmp("value",token))in->error(in,"value was expected"); |
f389e596 |
434 | |
3583026d |
435 | getEqual(in); |
436 | token = getToken(in); |
bb9014e6 |
437 | |
f389e596 |
438 | if(in->type == QUOTEDSTRING) { |
439 | in->type = NUMBER; |
440 | token2 = token; |
441 | do { |
442 | if (!isdigit(*token2)) { |
443 | in->type = QUOTEDSTRING; |
444 | break; |
445 | } |
446 | } while (*(++token2) != '\0'); |
447 | } |
448 | |
449 | if(in->type == NUMBER) |
bb9014e6 |
450 | *value = strtoll(token, NULL, 0); |
f389e596 |
451 | else |
bb9014e6 |
452 | goto error; |
bb9014e6 |
453 | return 1; |
bb9014e6 |
454 | error: |
455 | in->error(in,"incorrect size specification"); |
456 | return 0; |
3583026d |
457 | } |
458 | |
459 | char * getDescription(parse_file_t *in) |
460 | { |
461 | long int pos; |
462 | char * token, car, *str; |
463 | |
464 | pos = ftell(in->fp); |
465 | |
466 | getLAnglebracket(in); |
467 | token = getName(in); |
468 | if(strcmp("description",token)){ |
469 | fseek(in->fp, pos, SEEK_SET); |
470 | return NULL; |
471 | } |
472 | |
473 | getRAnglebracket(in); |
474 | |
475 | pos = 0; |
476 | while((car = getc(in->fp)) != EOF) { |
477 | if(car == '<') break; |
478 | if(car == '\0') continue; |
479 | in->buffer[pos] = car; |
480 | pos++; |
481 | } |
482 | if(car == EOF)in->error(in,"not a valid description"); |
483 | in->buffer[pos] = '\0'; |
484 | |
485 | str = allocAndCopy(in->buffer); |
486 | |
487 | getForwardslash(in); |
488 | token = getName(in); |
489 | if(strcmp("description", token))in->error(in,"not a valid description"); |
490 | getRAnglebracket(in); |
491 | |
492 | return str; |
493 | } |
494 | |
495 | /***************************************************************************** |
496 | *Function name |
497 | * parseFacility : generate event list |
498 | *Input params |
499 | * in : input file handle |
500 | * fac : empty facility |
501 | *Output params |
502 | * fac : facility filled with event list |
503 | ****************************************************************************/ |
504 | |
505 | void parseFacility(parse_file_t *in, facility_t * fac) |
506 | { |
507 | char * token; |
508 | event_t *ev; |
509 | |
510 | getFacilityAttributes(in, fac); |
511 | if(fac->name == NULL) in->error(in, "Attribute not named"); |
ffaf5031 |
512 | |
3583026d |
513 | fac->capname = allocAndCopy(fac->name); |
514 | strupper(fac->capname); |
515 | getRAnglebracket(in); |
516 | |
517 | fac->description = getDescription(in); |
518 | |
519 | while(1){ |
520 | getLAnglebracket(in); |
521 | |
522 | token = getToken(in); |
523 | if(in->type == ENDFILE) |
524 | in->error(in,"the definition of the facility is not finished"); |
525 | |
526 | if(strcmp("event",token) == 0){ |
527 | ev = (event_t*) memAlloc(sizeof(event_t)); |
528 | sequence_push(&(fac->events),ev); |
529 | parseEvent(in,ev, &(fac->unnamed_types), &(fac->named_types)); |
530 | }else if(strcmp("type",token) == 0){ |
531 | parseTypeDefinition(in, &(fac->unnamed_types), &(fac->named_types)); |
532 | }else if(in->type == FORWARDSLASH){ |
533 | break; |
534 | }else in->error(in,"event or type token expected\n"); |
535 | } |
536 | |
537 | token = getName(in); |
538 | if(strcmp("facility",token)) in->error(in,"not the end of the facility"); |
539 | getRAnglebracket(in); //</facility> |
540 | } |
541 | |
542 | /***************************************************************************** |
543 | *Function name |
544 | * parseEvent : generate event from event definition |
545 | *Input params |
546 | * in : input file handle |
547 | * ev : new event |
548 | * unnamed_types : array of unamed types |
549 | * named_types : array of named types |
550 | *Output params |
551 | * ev : new event (parameters are passed to it) |
552 | ****************************************************************************/ |
553 | |
554 | void parseEvent(parse_file_t *in, event_t * ev, sequence_t * unnamed_types, |
555 | table_t * named_types) |
556 | { |
557 | char *token; |
47299663 |
558 | field_t *f; |
3583026d |
559 | |
47299663 |
560 | sequence_init(&(ev->fields)); |
3583026d |
561 | //<event name=eventtype_name> |
562 | getEventAttributes(in, ev); |
563 | if(ev->name == NULL) in->error(in, "Event not named"); |
564 | getRAnglebracket(in); |
565 | |
47299663 |
566 | //<description>...</description> |
3583026d |
567 | ev->description = getDescription(in); |
568 | |
47299663 |
569 | int got_end = 0; |
570 | /* Events can have multiple fields. each field form at least a function |
571 | * parameter of the logging function. */ |
572 | while(!got_end) { |
573 | getLAnglebracket(in); |
574 | token = getToken(in); |
575 | |
576 | switch(in->type) { |
577 | case FORWARDSLASH: /* </event> */ |
578 | token = getName(in); |
579 | if(strcmp("event",token))in->error(in,"not an event definition"); |
580 | getRAnglebracket(in); //</event> |
581 | got_end = 1; |
582 | break; |
583 | case NAME: /* a field */ |
584 | if(strcmp("field",token))in->error(in,"expecting a field"); |
585 | f = (field_t *)memAlloc(sizeof(field_t)); |
586 | sequence_push(&(ev->fields),f); |
a67cd958 |
587 | parseFields(in, f, unnamed_types, named_types, 1); |
47299663 |
588 | break; |
589 | default: |
590 | in->error(in, "expecting </event> or <field >"); |
591 | break; |
592 | } |
593 | } |
594 | #if 0 |
595 | if(in->type == FORWARDSLASH){ //</event> NOTHING |
596 | ev->type = NULL; |
597 | }else if(in->type == NAME){ |
598 | if(strcmp("struct",token)==0 || strcmp("typeref",token)==0){ |
599 | ungetToken(in); |
600 | ev->type = parseType(in,NULL, unnamed_types, named_types); |
601 | if(ev->type->type != STRUCT && ev->type->type != NONE) |
602 | in->error(in,"type must be a struct"); |
603 | }else in->error(in, "not a valid type"); |
604 | |
605 | getLAnglebracket(in); |
606 | getForwardslash(in); |
607 | }else in->error(in,"not a struct type"); |
608 | getLAnglebracket(in); |
609 | getForwardslash(in); |
610 | token = getName(in); |
611 | if(strcmp("event",token))in->error(in,"not an event definition"); |
612 | getRAnglebracket(in); //</event> |
613 | #endif //0 |
3583026d |
614 | } |
615 | |
616 | /***************************************************************************** |
617 | *Function name |
618 | * parseField : get field infomation from buffer |
619 | *Input params |
620 | * in : input file handle |
47299663 |
621 | * f : field |
3583026d |
622 | * unnamed_types : array of unamed types |
623 | * named_types : array of named types |
a67cd958 |
624 | * tag : is field surrounded by a <field> </field> tag ? |
3583026d |
625 | ****************************************************************************/ |
626 | |
47299663 |
627 | void parseFields(parse_file_t *in, field_t *f, |
3583026d |
628 | sequence_t * unnamed_types, |
a67cd958 |
629 | table_t * named_types, |
630 | int tag) |
3583026d |
631 | { |
632 | char * token; |
a67cd958 |
633 | if(tag) { |
634 | //<field name=field_name> <description> <type> </field> |
635 | getFieldAttributes(in, f); |
636 | if(f->name == NULL) in->error(in, "Field not named"); |
637 | getRAnglebracket(in); |
3583026d |
638 | |
a67cd958 |
639 | f->description = getDescription(in); |
7479dd85 |
640 | } else { |
641 | f->description = NULL; |
a67cd958 |
642 | } |
3583026d |
643 | |
644 | //<int size=...> |
645 | getLAnglebracket(in); |
646 | f->type = parseType(in,NULL, unnamed_types, named_types); |
647 | |
a67cd958 |
648 | if(tag) { |
649 | getLAnglebracket(in); |
650 | getForwardslash(in); |
651 | token = getName(in); |
652 | if(strcmp("field",token))in->error(in,"not a valid field definition"); |
653 | getRAnglebracket(in); //</field> |
654 | } |
3583026d |
655 | } |
656 | |
657 | |
658 | /***************************************************************************** |
659 | *Function name |
660 | * parseType : get type information, type can be : |
661 | * Primitive: |
662 | * int(size,fmt); uint(size,fmt); float(size,fmt); |
663 | * string(fmt); enum(size,fmt,(label1,label2...)) |
664 | * Compound: |
665 | * array(arraySize, type); sequence(lengthSize,type) |
666 | * struct(field(name,type,description)...) |
667 | * type name: |
668 | * type(name,type) |
669 | *Input params |
670 | * in : input file handle |
671 | * inType : a type descriptor |
672 | * unnamed_types : array of unamed types |
673 | * named_types : array of named types |
674 | *Return values |
675 | * type_descriptor* : a type descriptor |
676 | ****************************************************************************/ |
677 | |
678 | type_descriptor_t *parseType(parse_file_t *in, type_descriptor_t *inType, |
679 | sequence_t * unnamed_types, table_t * named_types) |
680 | { |
681 | char *token; |
682 | type_descriptor_t *t; |
47299663 |
683 | field_t *f; |
3583026d |
684 | |
685 | if(inType == NULL) { |
686 | t = (type_descriptor_t *) memAlloc(sizeof(type_descriptor_t)); |
687 | t->type_name = NULL; |
688 | t->type = NONE; |
689 | t->fmt = NULL; |
690 | sequence_push(unnamed_types,t); |
691 | } |
692 | else t = inType; |
693 | |
694 | token = getName(in); |
695 | |
696 | if(strcmp(token,"struct") == 0) { |
697 | t->type = STRUCT; |
be97b953 |
698 | getTypeAttributes(in, t, unnamed_types, named_types); |
3583026d |
699 | getRAnglebracket(in); //<struct> |
700 | getLAnglebracket(in); //<field name=..> |
701 | token = getToken(in); |
702 | sequence_init(&(t->fields)); |
703 | while(strcmp("field",token) == 0){ |
47299663 |
704 | f = (field_t *)memAlloc(sizeof(field_t)); |
705 | sequence_push(&(t->fields),f); |
706 | |
a67cd958 |
707 | parseFields(in, f, unnamed_types, named_types, 1); |
3583026d |
708 | |
709 | //next field |
710 | getLAnglebracket(in); |
711 | token = getToken(in); |
712 | } |
713 | if(strcmp("/",token))in->error(in,"not a valid structure definition"); |
714 | token = getName(in); |
715 | if(strcmp("struct",token)!=0) |
716 | in->error(in,"not a valid structure definition"); |
717 | getRAnglebracket(in); //</struct> |
718 | } |
719 | else if(strcmp(token,"union") == 0) { |
720 | t->type = UNION; |
be97b953 |
721 | getTypeAttributes(in, t, unnamed_types, named_types); |
2d2d14a7 |
722 | getRAnglebracket(in); //<union> |
3583026d |
723 | |
724 | getLAnglebracket(in); //<field name=..> |
725 | token = getToken(in); |
726 | sequence_init(&(t->fields)); |
727 | while(strcmp("field",token) == 0){ |
47299663 |
728 | f = (field_t *)memAlloc(sizeof(field_t)); |
729 | sequence_push(&(t->fields),f); |
a67cd958 |
730 | parseFields(in, f, unnamed_types, named_types, 1); |
3583026d |
731 | |
732 | //next field |
733 | getLAnglebracket(in); |
734 | token = getToken(in); |
735 | } |
736 | if(strcmp("/",token))in->error(in,"not a valid union definition"); |
737 | token = getName(in); |
738 | if(strcmp("union",token)!=0) |
739 | in->error(in,"not a valid union definition"); |
740 | getRAnglebracket(in); //</union> |
741 | } |
742 | else if(strcmp(token,"array") == 0) { |
743 | t->type = ARRAY; |
a67cd958 |
744 | sequence_init(&(t->fields)); |
be97b953 |
745 | getTypeAttributes(in, t, unnamed_types, named_types); |
2d2d14a7 |
746 | if(t->size == 0) in->error(in, "Array has empty size"); |
747 | getForwardslash(in); |
3583026d |
748 | getRAnglebracket(in); //<array size=n> |
749 | |
2e415130 |
750 | //getLAnglebracket(in); //<subtype> |
a67cd958 |
751 | /* subfield */ |
752 | f = (field_t *)memAlloc(sizeof(field_t)); |
753 | sequence_push(&(t->fields),f); |
754 | parseFields(in, f, unnamed_types, named_types, 0); |
755 | |
756 | //getLAnglebracket(in); //<type struct> |
757 | //t->nested_type = parseType(in, NULL, unnamed_types, named_types); |
3583026d |
758 | |
759 | getLAnglebracket(in); //</array> |
760 | getForwardslash(in); |
761 | token = getName(in); |
762 | if(strcmp("array",token))in->error(in,"not a valid array definition"); |
763 | getRAnglebracket(in); //</array> |
764 | } |
765 | else if(strcmp(token,"sequence") == 0) { |
766 | t->type = SEQUENCE; |
a67cd958 |
767 | sequence_init(&(t->fields)); |
64a6ab10 |
768 | getTypeAttributes(in, t, unnamed_types, named_types); |
769 | getForwardslash(in); |
be97b953 |
770 | getRAnglebracket(in); //<sequence> |
3583026d |
771 | |
2e415130 |
772 | //getLAnglebracket(in); //<sequence size type> |
a67cd958 |
773 | /* subfield */ |
774 | f = (field_t *)memAlloc(sizeof(field_t)); |
775 | sequence_push(&(t->fields),f); |
776 | parseFields(in, f, unnamed_types, named_types, 0); |
777 | |
2e415130 |
778 | //getLAnglebracket(in); //<subtype> |
a67cd958 |
779 | /* subfield */ |
780 | f = (field_t *)memAlloc(sizeof(field_t)); |
781 | sequence_push(&(t->fields),f); |
782 | parseFields(in, f, unnamed_types, named_types, 0); |
3583026d |
783 | |
a67cd958 |
784 | //getLAnglebracket(in); //<type sequence> |
785 | //t->length_type = parseType(in, NULL, unnamed_types, named_types); |
be97b953 |
786 | |
a67cd958 |
787 | //getLAnglebracket(in); //<type sequence> |
be97b953 |
788 | |
a67cd958 |
789 | //t->nested_type = parseType(in, NULL, unnamed_types, named_types); |
790 | |
791 | if(t->fields.position < 1) in->error(in, "Sequence has no length type"); |
792 | if(t->fields.position < 2) in->error(in, "Sequence has no subtype"); |
793 | switch(((field_t*)t->fields.array[0])->type->type) { |
be97b953 |
794 | case UINT_FIXED : |
795 | case UCHAR : |
796 | case USHORT : |
797 | case UINT : |
798 | case ULONG : |
799 | case SIZE_T : |
800 | case OFF_T : |
801 | break; |
802 | default: |
803 | in->error(in, "Wrong length type for sequence"); |
804 | } |
805 | |
3583026d |
806 | getLAnglebracket(in); //</sequence> |
807 | getForwardslash(in); |
808 | token = getName(in); |
809 | if(strcmp("sequence",token))in->error(in,"not a valid sequence definition"); |
810 | getRAnglebracket(in); //</sequence> |
811 | } |
812 | else if(strcmp(token,"enum") == 0) { |
70f46ac3 |
813 | char * str; |
bb9014e6 |
814 | long long value = -1; |
70f46ac3 |
815 | |
3583026d |
816 | t->type = ENUM; |
817 | sequence_init(&(t->labels)); |
70f46ac3 |
818 | sequence_init(&(t->labels_values)); |
3583026d |
819 | sequence_init(&(t->labels_description)); |
820 | t->already_printed = 0; |
be97b953 |
821 | getTypeAttributes(in, t, unnamed_types, named_types); |
2d2d14a7 |
822 | //if(t->size == 0) in->error(in, "Sequence has empty size"); |
bf6349fa |
823 | //Mathieu : we fix enum size to target int size. GCC is always like this. |
2d2d14a7 |
824 | //fox copy optimisation. |
bf6349fa |
825 | if(t->size != 0) in->error(in, "Enum has fixed size of target int."); |
826 | t->size = 0; |
3583026d |
827 | getRAnglebracket(in); |
828 | |
829 | //<label name=label1 value=n/> |
830 | getLAnglebracket(in); |
831 | token = getToken(in); //"label" or "/" |
832 | while(strcmp("label",token) == 0){ |
70f46ac3 |
833 | int *label_value = malloc(sizeof(int)); |
bb9014e6 |
834 | int has_value = 0; |
835 | long long loc_value; |
70f46ac3 |
836 | |
9dae5ec2 |
837 | str = allocAndCopy(getNameAttribute(in)); |
bb9014e6 |
838 | has_value = getValueAttribute(in, &loc_value); |
70f46ac3 |
839 | |
840 | sequence_push(&(t->labels),str); |
841 | |
bb9014e6 |
842 | if(has_value) value = loc_value; |
70f46ac3 |
843 | else value++; |
844 | |
845 | *label_value = value; |
846 | sequence_push(&(t->labels_values), label_value); |
3583026d |
847 | |
848 | getForwardslash(in); |
849 | getRAnglebracket(in); |
850 | |
851 | //read description if any. May be NULL. |
852 | str = allocAndCopy(getDescription(in)); |
853 | sequence_push(&(t->labels_description),str); |
854 | |
855 | //next label definition |
856 | getLAnglebracket(in); |
857 | token = getToken(in); //"label" or "/" |
858 | } |
859 | if(strcmp("/",token))in->error(in, "not a valid enum definition"); |
860 | token = getName(in); |
861 | if(strcmp("enum",token))in->error(in, "not a valid enum definition"); |
862 | getRAnglebracket(in); //</label> |
863 | } |
2d2d14a7 |
864 | else if(strcmp(token,"int_fixed") == 0) { |
865 | t->type = INT_FIXED; |
be97b953 |
866 | getTypeAttributes(in, t, unnamed_types, named_types); |
2d2d14a7 |
867 | if(t->size == 0) in->error(in, "int has empty size"); |
868 | getForwardslash(in); |
869 | getRAnglebracket(in); |
870 | } |
871 | else if(strcmp(token,"uint_fixed") == 0) { |
872 | t->type = UINT_FIXED; |
be97b953 |
873 | getTypeAttributes(in, t, unnamed_types, named_types); |
2d2d14a7 |
874 | if(t->size == 0) in->error(in, "uint has empty size"); |
875 | getForwardslash(in); |
876 | getRAnglebracket(in); |
877 | } |
878 | else if(strcmp(token,"char") == 0) { |
879 | t->type = CHAR; |
be97b953 |
880 | getTypeAttributes(in, t, unnamed_types, named_types); |
294f0059 |
881 | t->size = 1; |
2d2d14a7 |
882 | getForwardslash(in); |
883 | getRAnglebracket(in); |
884 | } |
885 | else if(strcmp(token,"uchar") == 0) { |
886 | t->type = UCHAR; |
be97b953 |
887 | getTypeAttributes(in, t, unnamed_types, named_types); |
294f0059 |
888 | t->size = 1; |
2d2d14a7 |
889 | getForwardslash(in); |
890 | getRAnglebracket(in); |
891 | } |
892 | else if(strcmp(token,"short") == 0) { |
893 | t->type = SHORT; |
be97b953 |
894 | getTypeAttributes(in, t, unnamed_types, named_types); |
294f0059 |
895 | t->size = 2; |
2d2d14a7 |
896 | getForwardslash(in); |
897 | getRAnglebracket(in); |
898 | } |
899 | else if(strcmp(token,"ushort") == 0) { |
900 | t->type = USHORT; |
be97b953 |
901 | getTypeAttributes(in, t, unnamed_types, named_types); |
294f0059 |
902 | t->size = 2; |
2d2d14a7 |
903 | getForwardslash(in); |
904 | getRAnglebracket(in); |
905 | } |
3583026d |
906 | else if(strcmp(token,"int") == 0) { |
907 | t->type = INT; |
be97b953 |
908 | getTypeAttributes(in, t, unnamed_types, named_types); |
3583026d |
909 | getForwardslash(in); |
910 | getRAnglebracket(in); |
911 | } |
912 | else if(strcmp(token,"uint") == 0) { |
913 | t->type = UINT; |
be97b953 |
914 | getTypeAttributes(in, t, unnamed_types, named_types); |
3583026d |
915 | getForwardslash(in); |
916 | getRAnglebracket(in); |
917 | } |
2d2d14a7 |
918 | |
3583026d |
919 | else if(strcmp(token,"pointer") == 0) { |
920 | t->type = POINTER; |
be97b953 |
921 | getTypeAttributes(in, t, unnamed_types, named_types); |
3583026d |
922 | getForwardslash(in); |
923 | getRAnglebracket(in); |
924 | } |
925 | else if(strcmp(token,"long") == 0) { |
926 | t->type = LONG; |
be97b953 |
927 | getTypeAttributes(in, t, unnamed_types, named_types); |
3583026d |
928 | getForwardslash(in); |
929 | getRAnglebracket(in); |
930 | } |
931 | else if(strcmp(token,"ulong") == 0) { |
932 | t->type = ULONG; |
be97b953 |
933 | getTypeAttributes(in, t, unnamed_types, named_types); |
3583026d |
934 | getForwardslash(in); |
935 | getRAnglebracket(in); |
936 | } |
937 | else if(strcmp(token,"size_t") == 0) { |
938 | t->type = SIZE_T; |
be97b953 |
939 | getTypeAttributes(in, t, unnamed_types, named_types); |
3583026d |
940 | getForwardslash(in); |
941 | getRAnglebracket(in); |
942 | } |
943 | else if(strcmp(token,"ssize_t") == 0) { |
944 | t->type = SSIZE_T; |
be97b953 |
945 | getTypeAttributes(in, t, unnamed_types, named_types); |
3583026d |
946 | getForwardslash(in); |
947 | getRAnglebracket(in); |
948 | } |
949 | else if(strcmp(token,"off_t") == 0) { |
950 | t->type = OFF_T; |
be97b953 |
951 | getTypeAttributes(in, t, unnamed_types, named_types); |
3583026d |
952 | getForwardslash(in); |
953 | getRAnglebracket(in); |
954 | } |
955 | else if(strcmp(token,"float") == 0) { |
956 | t->type = FLOAT; |
be97b953 |
957 | getTypeAttributes(in, t, unnamed_types, named_types); |
3583026d |
958 | getForwardslash(in); |
959 | getRAnglebracket(in); |
960 | } |
961 | else if(strcmp(token,"string") == 0) { |
962 | t->type = STRING; |
be97b953 |
963 | getTypeAttributes(in, t, unnamed_types, named_types); |
3583026d |
964 | getForwardslash(in); |
965 | getRAnglebracket(in); |
966 | } |
967 | else if(strcmp(token,"typeref") == 0){ |
968 | // Must be a named type |
a67cd958 |
969 | free(t); |
970 | sequence_pop(unnamed_types); |
971 | token = getNameAttribute(in); |
972 | t = find_named_type(token, named_types); |
973 | if(t == NULL) in->error(in,"Named referred to must be pre-declared."); |
974 | getForwardslash(in); //<typeref name=type_name/> |
975 | getRAnglebracket(in); |
976 | return t; |
3583026d |
977 | }else in->error(in,"not a valid type"); |
978 | |
979 | return t; |
980 | } |
981 | |
982 | /***************************************************************************** |
983 | *Function name |
984 | * find_named_type : find a named type from hash table |
985 | *Input params |
986 | * name : type name |
987 | * named_types : array of named types |
988 | *Return values |
989 | * type_descriptor * : a type descriptor |
990 | *****************************************************************************/ |
991 | |
992 | type_descriptor_t * find_named_type(char *name, table_t * named_types) |
993 | { |
994 | type_descriptor_t *t; |
995 | |
996 | t = table_find(named_types,name); |
34c1d1b5 |
997 | |
3583026d |
998 | return t; |
34c1d1b5 |
999 | } |
1000 | |
1001 | type_descriptor_t * create_named_type(char *name, table_t * named_types) |
1002 | { |
1003 | type_descriptor_t *t; |
1004 | |
1005 | t = (type_descriptor_t *)memAlloc(sizeof(type_descriptor_t)); |
1006 | t->type_name = allocAndCopy(name); |
1007 | t->type = NONE; |
1008 | t->fmt = NULL; |
1009 | table_insert(named_types,t->type_name,t); |
1010 | // table_insert(named_types,allocAndCopy(name),t); |
1011 | return t; |
1012 | } |
3583026d |
1013 | |
1014 | /***************************************************************************** |
1015 | *Function name |
1016 | * parseTypeDefinition : get type information from type definition |
1017 | *Input params |
1018 | * in : input file handle |
1019 | * unnamed_types : array of unamed types |
1020 | * named_types : array of named types |
1021 | *****************************************************************************/ |
1022 | |
1023 | void parseTypeDefinition(parse_file_t * in, sequence_t * unnamed_types, |
1024 | table_t * named_types) |
1025 | { |
1026 | char *token; |
1027 | type_descriptor_t *t; |
1028 | |
1029 | token = getNameAttribute(in); |
1030 | if(token == NULL) in->error(in, "Type has empty name"); |
34c1d1b5 |
1031 | t = create_named_type(token, named_types); |
3583026d |
1032 | |
1033 | if(t->type != NONE) in->error(in,"redefinition of named type"); |
1034 | getRAnglebracket(in); //<type name=type_name> |
1035 | getLAnglebracket(in); //< |
1036 | token = getName(in); |
1037 | //MD ??if(strcmp("struct",token))in->error(in,"not a valid type definition"); |
1038 | ungetToken(in); |
1039 | parseType(in,t, unnamed_types, named_types); |
1040 | |
1041 | //</type> |
1042 | getLAnglebracket(in); |
1043 | getForwardslash(in); |
1044 | token = getName(in); |
1045 | if(strcmp("type",token))in->error(in,"not a valid type definition"); |
1046 | getRAnglebracket(in); //</type> |
1047 | } |
1048 | |
1049 | /************************************************************************** |
1050 | * Function : |
1051 | * getComa, getName, getNumber, getEqual |
1052 | * Description : |
1053 | * Read a token from the input file, check its type, return it scontent. |
1054 | * |
1055 | * Parameters : |
1056 | * in , input file handle. |
1057 | * |
1058 | * Return values : |
1059 | * address of token content. |
1060 | * |
1061 | **************************************************************************/ |
1062 | |
1063 | char *getName(parse_file_t * in) |
1064 | { |
1065 | char *token; |
1066 | |
1067 | token = getToken(in); |
9dae5ec2 |
1068 | // Optional descriptions |
1069 | // if(in->type != NAME) in->error(in,"Name token was expected"); |
3583026d |
1070 | return token; |
1071 | } |
1072 | |
1073 | int getNumber(parse_file_t * in) |
1074 | { |
1075 | char *token; |
1076 | |
1077 | token = getToken(in); |
1078 | if(in->type != NUMBER) in->error(in, "Number token was expected"); |
1079 | return atoi(token); |
1080 | } |
1081 | |
1082 | char *getForwardslash(parse_file_t * in) |
1083 | { |
1084 | char *token; |
1085 | |
1086 | token = getToken(in); |
2d2d14a7 |
1087 | //if(in->type != FORWARDSLASH) in->error(in, "forward slash token was expected"); |
1088 | /* Mathieu : final / is optional now. */ |
1089 | if(in->type != FORWARDSLASH) ungetToken(in); |
1090 | |
3583026d |
1091 | return token; |
1092 | } |
1093 | |
1094 | char *getLAnglebracket(parse_file_t * in) |
1095 | { |
1096 | char *token; |
1097 | |
1098 | token = getToken(in); |
1099 | if(in->type != LANGLEBRACKET) in->error(in, "Left angle bracket was expected"); |
1100 | return token; |
1101 | } |
1102 | |
1103 | char *getRAnglebracket(parse_file_t * in) |
1104 | { |
1105 | char *token; |
1106 | |
1107 | token = getToken(in); |
1108 | if(in->type != RANGLEBRACKET) in->error(in, "Right angle bracket was expected"); |
1109 | return token; |
1110 | } |
1111 | |
1112 | char *getQuotedString(parse_file_t * in) |
1113 | { |
1114 | char *token; |
1115 | |
1116 | token = getToken(in); |
1117 | if(in->type != QUOTEDSTRING) in->error(in, "quoted string was expected"); |
1118 | return token; |
1119 | } |
1120 | |
1121 | char * getEqual(parse_file_t *in) |
1122 | { |
1123 | char *token; |
1124 | |
1125 | token = getToken(in); |
1126 | if(in->type != EQUAL) in->error(in, "equal was expected"); |
1127 | return token; |
1128 | } |
1129 | |
1130 | char seekNextChar(parse_file_t *in) |
1131 | { |
1132 | char car; |
1133 | while((car = getc(in->fp)) != EOF) { |
1134 | if(!isspace(car)){ |
1135 | ungetc(car,in->fp); |
1136 | return car; |
1137 | } |
1138 | } |
1139 | return EOF; |
1140 | } |
1141 | |
1142 | /****************************************************************** |
1143 | * Function : |
1144 | * getToken, ungetToken |
1145 | * Description : |
1146 | * Read a token from the input file and return its type and content. |
1147 | * Line numbers are accounted for and whitespace/comments are skipped. |
1148 | * |
1149 | * Parameters : |
1150 | * in, input file handle. |
1151 | * |
1152 | * Return values : |
1153 | * address of token content. |
1154 | * |
1155 | ******************************************************************/ |
1156 | |
1157 | void ungetToken(parse_file_t * in) |
1158 | { |
1159 | in->unget = 1; |
1160 | } |
1161 | |
1162 | char *getToken(parse_file_t * in) |
1163 | { |
1164 | FILE *fp = in->fp; |
1165 | char car, car1; |
1166 | int pos = 0, escaped; |
1167 | |
1168 | if(in->unget == 1) { |
1169 | in->unget = 0; |
1170 | return in->buffer; |
1171 | } |
1172 | |
1173 | /* skip whitespace and comments */ |
1174 | |
1175 | while((car = getc(fp)) != EOF) { |
1176 | if(car == '/') { |
1177 | car1 = getc(fp); |
1178 | if(car1 == '*') skipComment(in); |
1179 | else if(car1 == '/') skipEOL(in); |
1180 | else { |
1181 | car1 = ungetc(car1,fp); |
1182 | break; |
1183 | } |
1184 | } |
1185 | else if(car == '\n') in->lineno++; |
1186 | else if(!isspace(car)) break; |
1187 | } |
1188 | |
1189 | switch(car) { |
1190 | case EOF: |
1191 | in->type = ENDFILE; |
1192 | break; |
1193 | case '/': |
1194 | in->type = FORWARDSLASH; |
1195 | in->buffer[pos] = car; |
1196 | pos++; |
1197 | break; |
1198 | case '<': |
1199 | in->type = LANGLEBRACKET; |
1200 | in->buffer[pos] = car; |
1201 | pos++; |
1202 | break; |
1203 | case '>': |
1204 | in->type = RANGLEBRACKET; |
1205 | in->buffer[pos] = car; |
1206 | pos++; |
1207 | break; |
1208 | case '=': |
1209 | in->type = EQUAL; |
1210 | in->buffer[pos] = car; |
1211 | pos++; |
1212 | break; |
1213 | case '"': |
1214 | escaped = 0; |
1215 | while((car = getc(fp)) != EOF && pos < BUFFER_SIZE) { |
1216 | if(car == '\\' && escaped == 0) { |
f389e596 |
1217 | in->buffer[pos] = car; |
1218 | pos++; |
3583026d |
1219 | escaped = 1; |
1220 | continue; |
1221 | } |
1222 | if(car == '"' && escaped == 0) break; |
1223 | if(car == '\n' && escaped == 0) { |
1224 | in->error(in, "non escaped newline inside quoted string"); |
1225 | } |
1226 | if(car == '\n') in->lineno++; |
1227 | in->buffer[pos] = car; |
1228 | pos++; |
1229 | escaped = 0; |
1230 | } |
1231 | if(car == EOF) in->error(in,"no ending quotemark"); |
1232 | if(pos == BUFFER_SIZE) in->error(in, "quoted string token too large"); |
1233 | in->type = QUOTEDSTRING; |
1234 | break; |
1235 | default: |
1236 | if(isdigit(car)) { |
1237 | in->buffer[pos] = car; |
1238 | pos++; |
1239 | while((car = getc(fp)) != EOF && pos < BUFFER_SIZE) { |
1240 | if(!isdigit(car)) { |
1241 | ungetc(car,fp); |
1242 | break; |
1243 | } |
1244 | in->buffer[pos] = car; |
1245 | pos++; |
1246 | } |
f389e596 |
1247 | if(car == EOF) ungetc(car,fp); |
3583026d |
1248 | if(pos == BUFFER_SIZE) in->error(in, "number token too large"); |
1249 | in->type = NUMBER; |
f389e596 |
1250 | } |
9dae5ec2 |
1251 | else if(isalnum(car) || car == '_' || car == '-') { |
3583026d |
1252 | in->buffer[0] = car; |
1253 | pos = 1; |
1254 | while((car = getc(fp)) != EOF && pos < BUFFER_SIZE) { |
9dae5ec2 |
1255 | if(!(isalnum(car) || car == '_' || car == '-')) { |
3583026d |
1256 | ungetc(car,fp); |
1257 | break; |
1258 | } |
1259 | in->buffer[pos] = car; |
1260 | pos++; |
1261 | } |
f389e596 |
1262 | if(car == EOF) ungetc(car,fp); |
3583026d |
1263 | if(pos == BUFFER_SIZE) in->error(in, "name token too large"); |
1264 | in->type = NAME; |
f389e596 |
1265 | } else if(car == '?') { |
1266 | in->buffer[0] = car; |
1267 | pos++; |
1268 | } |
3583026d |
1269 | else in->error(in, "invalid character, unrecognized token"); |
1270 | } |
1271 | in->buffer[pos] = 0; |
1272 | return in->buffer; |
1273 | } |
1274 | |
1275 | void skipComment(parse_file_t * in) |
1276 | { |
1277 | char car; |
1278 | while((car = getc(in->fp)) != EOF) { |
1279 | if(car == '\n') in->lineno++; |
1280 | else if(car == '*') { |
1281 | car = getc(in->fp); |
1282 | if(car ==EOF) break; |
1283 | if(car == '/') return; |
1284 | ungetc(car,in->fp); |
1285 | } |
1286 | } |
1287 | if(car == EOF) in->error(in,"comment begining with '/*' has no ending '*/'"); |
1288 | } |
1289 | |
1290 | void skipEOL(parse_file_t * in) |
1291 | { |
1292 | char car; |
1293 | while((car = getc(in->fp)) != EOF) { |
1294 | if(car == '\n') { |
1295 | ungetc(car,in->fp); |
1296 | break; |
1297 | } |
1298 | } |
1299 | if(car == EOF)ungetc(car, in->fp); |
1300 | } |
1301 | |
1302 | /***************************************************************************** |
1303 | *Function name |
1304 | * checkNamedTypesImplemented : check if all named types have definition |
1305 | ****************************************************************************/ |
1306 | |
1307 | void checkNamedTypesImplemented(table_t * named_types) |
1308 | { |
1309 | type_descriptor_t *t; |
1310 | int pos; |
1311 | char str[256]; |
1312 | |
1313 | for(pos = 0 ; pos < named_types->values.position; pos++) { |
1314 | t = (type_descriptor_t *) named_types->values.array[pos]; |
1315 | if(t->type == NONE){ |
1316 | sprintf(str,"named type '%s' has no definition", |
1317 | (char*)named_types->keys.array[pos]); |
1318 | error_callback(NULL,str); |
1319 | } |
1320 | } |
1321 | } |
1322 | |
1323 | |
1324 | /***************************************************************************** |
1325 | *Function name |
1326 | * generateChecksum : generate checksum for the facility |
1327 | *Input Params |
1328 | * facName : name of facility |
1329 | *Output Params |
1330 | * checksum : checksum for the facility |
1331 | ****************************************************************************/ |
1332 | |
1333 | void generateChecksum(char* facName, |
30d72138 |
1334 | unsigned int * checksum, sequence_t * events) |
3583026d |
1335 | { |
1336 | unsigned long crc ; |
1337 | int pos; |
1338 | event_t * ev; |
bf6349fa |
1339 | unsigned int i; |
3583026d |
1340 | |
1341 | crc = crc32(facName); |
1342 | for(pos = 0; pos < events->position; pos++){ |
1343 | ev = (event_t *)(events->array[pos]); |
47299663 |
1344 | crc = partial_crc32(ev->name, crc); |
bf6349fa |
1345 | for(i = 0; i < ev->fields.position; i++) { |
47299663 |
1346 | field_t *f = (field_t*)ev->fields.array[i]; |
1347 | crc = partial_crc32(f->name, crc); |
1348 | crc = getTypeChecksum(crc, f->type); |
1349 | } |
3583026d |
1350 | } |
1351 | *checksum = crc; |
1352 | } |
1353 | |
1354 | /***************************************************************************** |
1355 | *Function name |
1356 | * getTypeChecksum : generate checksum by type info |
1357 | *Input Params |
1358 | * crc : checksum generated so far |
1359 | * type : type descriptor containing type info |
1360 | *Return value |
1361 | * unsigned long : checksum |
1362 | *****************************************************************************/ |
1363 | |
1364 | unsigned long getTypeChecksum(unsigned long aCrc, type_descriptor_t * type) |
1365 | { |
1366 | unsigned long crc = aCrc; |
1367 | char * str = NULL, buf[16]; |
1368 | int flag = 0, pos; |
1369 | field_t * fld; |
1370 | |
1371 | switch(type->type){ |
2d2d14a7 |
1372 | case INT_FIXED: |
1373 | str = intOutputTypes[getSizeindex(type->size)]; |
3583026d |
1374 | break; |
2d2d14a7 |
1375 | case UINT_FIXED: |
1376 | str = uintOutputTypes[getSizeindex(type->size)]; |
3583026d |
1377 | break; |
1378 | case POINTER: |
1379 | str = allocAndCopy("void *"); |
1380 | flag = 1; |
1381 | break; |
2d2d14a7 |
1382 | case CHAR: |
1383 | str = allocAndCopy("signed char"); |
1384 | flag = 1; |
1385 | break; |
1386 | case UCHAR: |
1387 | str = allocAndCopy("unsigned char"); |
1388 | flag = 1; |
1389 | break; |
1390 | case SHORT: |
1391 | str = allocAndCopy("short"); |
1392 | flag = 1; |
1393 | break; |
1394 | case USHORT: |
1395 | str = allocAndCopy("unsigned short"); |
1396 | flag = 1; |
1397 | break; |
1398 | case INT: |
1399 | str = allocAndCopy("int"); |
1400 | flag = 1; |
1401 | break; |
1402 | case UINT: |
1403 | str = allocAndCopy("uint"); |
1404 | flag = 1; |
1405 | break; |
3583026d |
1406 | case LONG: |
1407 | str = allocAndCopy("long"); |
1408 | flag = 1; |
1409 | break; |
1410 | case ULONG: |
1411 | str = allocAndCopy("unsigned long"); |
1412 | flag = 1; |
1413 | break; |
1414 | case SIZE_T: |
1415 | str = allocAndCopy("size_t"); |
1416 | flag = 1; |
1417 | break; |
1418 | case SSIZE_T: |
1419 | str = allocAndCopy("ssize_t"); |
1420 | flag = 1; |
1421 | break; |
1422 | case OFF_T: |
1423 | str = allocAndCopy("off_t"); |
1424 | flag = 1; |
1425 | break; |
1426 | case FLOAT: |
2d2d14a7 |
1427 | str = floatOutputTypes[getSizeindex(type->size)]; |
3583026d |
1428 | break; |
1429 | case STRING: |
1430 | str = allocAndCopy("string"); |
1431 | flag = 1; |
1432 | break; |
1433 | case ENUM: |
2d2d14a7 |
1434 | //str = appendString("enum ", uintOutputTypes[getSizeindex(type->size)]); |
1435 | str = allocAndCopy("enum"); |
3583026d |
1436 | flag = 1; |
1437 | break; |
1438 | case ARRAY: |
2e415130 |
1439 | sprintf(buf,"%zu", type->size); |
3583026d |
1440 | str = appendString("array ",buf); |
1441 | flag = 1; |
1442 | break; |
1443 | case SEQUENCE: |
294f0059 |
1444 | str = allocAndCopy("sequence "); |
3583026d |
1445 | flag = 1; |
1446 | break; |
1447 | case STRUCT: |
1448 | str = allocAndCopy("struct"); |
1449 | flag = 1; |
1450 | break; |
1451 | case UNION: |
1452 | str = allocAndCopy("union"); |
1453 | flag = 1; |
1454 | break; |
1455 | default: |
1456 | error_callback(NULL, "named type has no definition"); |
1457 | break; |
1458 | } |
1459 | |
1460 | crc = partial_crc32(str,crc); |
1461 | if(flag) free(str); |
1462 | |
1463 | if(type->fmt) crc = partial_crc32(type->fmt,crc); |
1464 | |
2e415130 |
1465 | if(type->type == ARRAY){ |
1466 | crc = getTypeChecksum(crc,((field_t*)type->fields.array[0])->type); |
1467 | } else if(type->type ==SEQUENCE) { |
1468 | crc = getTypeChecksum(crc,((field_t*)type->fields.array[0])->type); |
1469 | crc = getTypeChecksum(crc,((field_t*)type->fields.array[1])->type); |
1470 | } else if(type->type == STRUCT || type->type == UNION){ |
3583026d |
1471 | for(pos =0; pos < type->fields.position; pos++){ |
1472 | fld = (field_t *) type->fields.array[pos]; |
1473 | crc = partial_crc32(fld->name,crc); |
1474 | crc = getTypeChecksum(crc, fld->type); |
1475 | } |
1476 | }else if(type->type == ENUM){ |
1477 | for(pos = 0; pos < type->labels.position; pos++) |
1478 | crc = partial_crc32((char*)type->labels.array[pos],crc); |
1479 | } |
1480 | |
1481 | return crc; |
1482 | } |
1483 | |
1484 | |
1485 | /* Event type descriptors */ |
1486 | void freeType(type_descriptor_t * tp) |
1487 | { |
1488 | int pos2; |
1489 | field_t *f; |
1490 | |
1491 | if(tp->fmt != NULL) free(tp->fmt); |
1492 | if(tp->type == ENUM) { |
1493 | for(pos2 = 0; pos2 < tp->labels.position; pos2++) { |
1494 | free(tp->labels.array[pos2]); |
1495 | } |
1496 | sequence_dispose(&(tp->labels)); |
70f46ac3 |
1497 | for(pos2 = 0; pos2 < tp->labels_values.position; pos2++) { |
1498 | free(tp->labels_values.array[pos2]); |
1499 | } |
1500 | sequence_dispose(&(tp->labels_values)); |
3583026d |
1501 | } |
1502 | if(tp->type == STRUCT) { |
1503 | for(pos2 = 0; pos2 < tp->fields.position; pos2++) { |
1504 | f = (field_t *) tp->fields.array[pos2]; |
1505 | free(f->name); |
1506 | free(f->description); |
1507 | free(f); |
1508 | } |
1509 | sequence_dispose(&(tp->fields)); |
1510 | } |
1511 | } |
1512 | |
1513 | void freeNamedType(table_t * t) |
1514 | { |
1515 | int pos; |
1516 | type_descriptor_t * td; |
1517 | |
1518 | for(pos = 0 ; pos < t->keys.position; pos++) { |
1519 | free((char *)t->keys.array[pos]); |
1520 | td = (type_descriptor_t*)t->values.array[pos]; |
1521 | freeType(td); |
1522 | free(td); |
1523 | } |
1524 | } |
1525 | |
1526 | void freeTypes(sequence_t *t) |
1527 | { |
1528 | int pos; |
1529 | type_descriptor_t *tp; |
1530 | |
1531 | for(pos = 0 ; pos < t->position; pos++) { |
1532 | tp = (type_descriptor_t *)t->array[pos]; |
1533 | freeType(tp); |
1534 | free(tp); |
1535 | } |
1536 | } |
1537 | |
1538 | void freeEvents(sequence_t *t) |
1539 | { |
1540 | int pos; |
1541 | event_t *ev; |
1542 | |
1543 | for(pos = 0 ; pos < t->position; pos++) { |
1544 | ev = (event_t *) t->array[pos]; |
1545 | free(ev->name); |
1546 | free(ev->description); |
47299663 |
1547 | sequence_dispose(&ev->fields); |
3583026d |
1548 | free(ev); |
1549 | } |
1550 | |
1551 | } |
1552 | |
1553 | |
1554 | /* Extensible array */ |
1555 | |
1556 | void sequence_init(sequence_t *t) |
1557 | { |
1558 | t->size = 10; |
1559 | t->position = 0; |
1560 | t->array = (void **)memAlloc(t->size * sizeof(void *)); |
1561 | } |
1562 | |
1563 | void sequence_dispose(sequence_t *t) |
1564 | { |
1565 | t->size = 0; |
1566 | free(t->array); |
1567 | t->array = NULL; |
1568 | } |
1569 | |
1570 | void sequence_push(sequence_t *t, void *elem) |
1571 | { |
1572 | void **tmp; |
1573 | |
1574 | if(t->position >= t->size) { |
1575 | tmp = t->array; |
1576 | t->array = (void **)memAlloc(t->size * 2 * sizeof(void *)); |
1577 | memcpy(t->array, tmp, t->size * sizeof(void *)); |
1578 | t->size = t->size * 2; |
1579 | free(tmp); |
1580 | } |
1581 | t->array[t->position] = elem; |
1582 | t->position++; |
1583 | } |
1584 | |
1585 | void *sequence_pop(sequence_t *t) |
1586 | { |
b0f04dc3 |
1587 | if(t->position == 0) printf("Error : trying to pop an empty sequence"); |
1588 | return t->array[--t->position]; |
3583026d |
1589 | } |
1590 | |
1591 | |
1592 | /* Hash table API, implementation is just linear search for now */ |
1593 | |
1594 | void table_init(table_t *t) |
1595 | { |
1596 | sequence_init(&(t->keys)); |
1597 | sequence_init(&(t->values)); |
1598 | } |
1599 | |
1600 | void table_dispose(table_t *t) |
1601 | { |
1602 | sequence_dispose(&(t->keys)); |
1603 | sequence_dispose(&(t->values)); |
1604 | } |
1605 | |
1606 | void table_insert(table_t *t, char *key, void *value) |
1607 | { |
1608 | sequence_push(&(t->keys),key); |
1609 | sequence_push(&(t->values),value); |
1610 | } |
1611 | |
1612 | void *table_find(table_t *t, char *key) |
1613 | { |
1614 | int pos; |
1615 | for(pos = 0 ; pos < t->keys.position; pos++) { |
1616 | if(strcmp((char *)key,(char *)t->keys.array[pos]) == 0) |
1617 | return(t->values.array[pos]); |
1618 | } |
1619 | return NULL; |
1620 | } |
1621 | |
1622 | void table_insert_int(table_t *t, int *key, void *value) |
1623 | { |
1624 | sequence_push(&(t->keys),key); |
1625 | sequence_push(&(t->values),value); |
1626 | } |
1627 | |
1628 | void *table_find_int(table_t *t, int *key) |
1629 | { |
1630 | int pos; |
1631 | for(pos = 0 ; pos < t->keys.position; pos++) { |
1632 | if(*key == *(int *)t->keys.array[pos]) |
1633 | return(t->values.array[pos]); |
1634 | } |
1635 | return NULL; |
1636 | } |
1637 | |
1638 | |
1639 | /* Concatenate strings */ |
1640 | |
1641 | char *appendString(char *s, char *suffix) |
1642 | { |
1643 | char *tmp; |
1644 | if(suffix == NULL) return s; |
1645 | |
1646 | tmp = (char *)memAlloc(strlen(s) + strlen(suffix) + 1); |
1647 | strcpy(tmp,s); |
1648 | strcat(tmp,suffix); |
1649 | return tmp; |
1650 | } |