90395b4b |
1 | /* |
0dee0e75 |
2 | |
3 | parser.c: Generate helper declarations and functions to trace events |
4 | from an event description file. |
5 | |
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 |
10 | it under the terms of the GNU General Public License as published by |
11 | the Free Software Foundation; version 2 of the License. |
12 | |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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 | */ |
90395b4b |
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> |
a0c1f622 |
42 | #include <ctype.h> |
90395b4b |
43 | |
44 | #include "parser.h" |
45 | |
46 | |
f104d082 |
47 | char *intOutputTypes[] = { |
48 | "int8_t", "int16_t", "int32_t", "int64_t" }; |
a0c1f622 |
49 | |
f104d082 |
50 | char *uintOutputTypes[] = { |
51 | "uint8_t", "uint16_t", "uint32_t", "uint64_t" }; |
a0c1f622 |
52 | |
f104d082 |
53 | char *floatOutputTypes[] = { |
54 | "undef", "undef", "float", "double" }; |
a0c1f622 |
55 | |
56 | |
57 | |
58 | |
90395b4b |
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 | |
f104d082 |
71 | int getSizeindex(unsigned int value) |
90395b4b |
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 | |
f104d082 |
97 | unsigned long long int getSize(parse_file_t *in) |
90395b4b |
98 | { |
01e5c8ac |
99 | char *token, *token2; |
83e160f2 |
100 | unsigned long long int ret; |
90395b4b |
101 | |
102 | token = getToken(in); |
01e5c8ac |
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 | |
90395b4b |
116 | if(in->type == NUMBER) { |
9f2d599d |
117 | ret = strtoull(token, NULL, 0); |
118 | } else { |
119 | goto error; |
120 | } |
9f2d599d |
121 | |
122 | return ret; |
123 | error: |
90395b4b |
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 | |
90699b2b |
136 | void error_callback(parse_file_t *in, char *msg) |
90395b4b |
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 | |
f104d082 |
197 | void getTypeAttributes(parse_file_t *in, type_descriptor_t *t, |
198 | sequence_t * unnamed_types, table_t * named_types) |
90395b4b |
199 | { |
200 | char * token; |
83e160f2 |
201 | int car; |
90395b4b |
202 | |
203 | t->fmt = NULL; |
f104d082 |
204 | t->size = 0; |
7df766d3 |
205 | t->custom_write = 0; |
f0b795e0 |
206 | t->network = 0; |
90395b4b |
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)); |
224 | } else if(!strcmp("size",token)) { |
225 | getEqual(in); |
226 | t->size = getSize(in); |
7df766d3 |
227 | } else if(!strcmp("custom_write", token)) { |
228 | t->custom_write = 1; |
01e5c8ac |
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; |
237 | } |
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); |
244 | if(!strcmp("custom", token)) { |
245 | t->custom_write = 1; |
246 | } |
247 | } |
248 | } |
90395b4b |
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 | |
90699b2b |
263 | void getEventAttributes(parse_file_t *in, event_t *ev) |
90395b4b |
264 | { |
265 | char * token; |
83e160f2 |
266 | int car; |
90395b4b |
267 | |
268 | ev->name = NULL; |
269 | ev->per_trace = 0; |
270 | ev->per_tracefile = 0; |
f5c61f8d |
271 | ev->param_buffer = 0; |
f0aad545 |
272 | ev->no_instrument_function = 0; |
273 | ev->high_priority = 0; |
90395b4b |
274 | |
275 | while(1) { |
276 | token = getToken(in); |
277 | if(strcmp("/",token) == 0 || strcmp(">",token) == 0){ |
278 | ungetToken(in); |
279 | break; |
280 | } |
281 | |
282 | if(!strcmp("name",token)) { |
283 | getEqual(in); |
284 | car = seekNextChar(in); |
285 | if(car == EOF) in->error(in,"name was expected"); |
286 | else if(car == '\"') ev->name = allocAndCopy(getQuotedString(in)); |
287 | else ev->name = allocAndCopy(getName(in)); |
01e5c8ac |
288 | } else if(!strcmp("scope", token)) { |
f0aad545 |
289 | getEqual(in); |
290 | car = seekNextChar(in); |
291 | if(car == EOF) in->error(in,"scope was expected"); |
01e5c8ac |
292 | else if(car == '\"') token = getQuotedString(in); |
293 | else token = getName(in); |
f0aad545 |
294 | if(!strcmp(token, "trace")) ev->per_trace = 1; |
295 | else if(!strcmp(token, "tracefile")) ev->per_tracefile = 1; |
296 | } else if(!strcmp("param", token)) { |
297 | getEqual(in); |
298 | car = seekNextChar(in); |
299 | if(car == EOF) in->error(in,"parameter type was expected"); |
01e5c8ac |
300 | else if(car == '\"') token = getQuotedString(in); |
301 | else token = getName(in); |
f0aad545 |
302 | if(!strcmp(token, "buffer")) ev->param_buffer = 1; |
303 | } else if(!strcmp("attribute", token)) { |
304 | getEqual(in); |
305 | car = seekNextChar(in); |
306 | if(car == EOF) in->error(in,"attribute was expected"); |
01e5c8ac |
307 | else if(car == '\"') token = getQuotedString(in); |
308 | else token = getName(in); |
f0aad545 |
309 | if(!strcmp(token, "no_instrument_function")) |
310 | ev->no_instrument_function = 1; |
311 | else if(!strcmp(token, "high_priority")) |
312 | ev->high_priority = 1; |
01e5c8ac |
313 | } |
90395b4b |
314 | } |
315 | } |
316 | |
317 | /************************************************************************** |
318 | * Function : |
319 | * getFacilityAttributes |
320 | * Description : |
321 | * Read the attribute from the input file. |
322 | * |
323 | * Parameters : |
324 | * in , input file handle. |
325 | * fac , the facility to fill. |
326 | * |
327 | **************************************************************************/ |
328 | |
90699b2b |
329 | void getFacilityAttributes(parse_file_t *in, facility_t *fac) |
90395b4b |
330 | { |
331 | char * token; |
83e160f2 |
332 | int car; |
90395b4b |
333 | |
334 | fac->name = NULL; |
f5d7967f |
335 | fac->arch = NULL; |
383d64da |
336 | fac->user = 0; |
90395b4b |
337 | |
338 | while(1) { |
339 | token = getToken(in); |
340 | if(strcmp("/",token) == 0 || strcmp(">",token) == 0){ |
341 | ungetToken(in); |
342 | break; |
343 | } |
344 | |
345 | if(!strcmp("name",token)) { |
346 | getEqual(in); |
347 | car = seekNextChar(in); |
348 | if(car == EOF) in->error(in,"name was expected"); |
349 | else if(car == '\"') fac->name = allocAndCopy(getQuotedString(in)); |
350 | else fac->name = allocAndCopy(getName(in)); |
01e5c8ac |
351 | if(!strncmp(fac->name, "user_", sizeof("user_")-1)) |
383d64da |
352 | fac->user = 1; |
f5d7967f |
353 | } else if(!strcmp("arch", token)) { |
354 | getEqual(in); |
355 | car = seekNextChar(in); |
01e5c8ac |
356 | if(car == '\"') fac->arch = allocAndCopy(getQuotedString(in)); |
f5d7967f |
357 | else fac->arch = allocAndCopy(getName(in)); |
358 | } |
90395b4b |
359 | } |
360 | } |
361 | |
362 | /************************************************************************** |
363 | * Function : |
364 | * getFieldAttributes |
365 | * Description : |
366 | * Read the attribute from the input file. |
367 | * |
368 | * Parameters : |
369 | * in , input file handle. |
370 | * f , the field to fill. |
371 | * |
372 | **************************************************************************/ |
373 | |
90699b2b |
374 | void getFieldAttributes(parse_file_t *in, field_t *f) |
90395b4b |
375 | { |
376 | char * token; |
83e160f2 |
377 | int car; |
90395b4b |
378 | |
379 | f->name = NULL; |
380 | |
381 | while(1) { |
382 | token = getToken(in); |
383 | if(strcmp("/",token) == 0 || strcmp(">",token) == 0){ |
384 | ungetToken(in); |
385 | break; |
386 | } |
387 | |
388 | if(!strcmp("name",token)) { |
389 | getEqual(in); |
390 | car = seekNextChar(in); |
391 | if(car == EOF) in->error(in,"name was expected"); |
392 | else if(car == '\"') f->name = allocAndCopy(getQuotedString(in)); |
393 | else f->name = allocAndCopy(getName(in)); |
394 | } |
f0b795e0 |
395 | } |
90395b4b |
396 | } |
397 | |
90699b2b |
398 | char *getNameAttribute(parse_file_t *in) |
90395b4b |
399 | { |
400 | char * token; |
401 | char *name = NULL; |
83e160f2 |
402 | int car; |
90395b4b |
403 | |
404 | while(1) { |
405 | token = getToken(in); |
90395b4b |
406 | if(!strcmp("name",token)) { |
407 | getEqual(in); |
408 | car = seekNextChar(in); |
409 | if(car == EOF) in->error(in,"name was expected"); |
410 | else if(car == '\"') name = allocAndCopy(getQuotedString(in)); |
411 | else name = allocAndCopy(getName(in)); |
0dee0e75 |
412 | } else { |
413 | ungetToken(in); |
414 | break; |
90395b4b |
415 | } |
0dee0e75 |
416 | |
90395b4b |
417 | } |
418 | if(name == NULL) in->error(in, "Name was expected"); |
419 | return name; |
90395b4b |
420 | } |
421 | |
422 | |
423 | |
01e5c8ac |
424 | //for <label name=label_name value=n format="...">, value is an option |
9f2d599d |
425 | //Return value : 0 : no value, 1 : has a value |
426 | int getValueAttribute(parse_file_t *in, long long *value) |
90395b4b |
427 | { |
01e5c8ac |
428 | char * token, *token2; |
90395b4b |
429 | |
01e5c8ac |
430 | token = getToken(in); |
431 | |
432 | if(strcmp("/",token) == 0 || strcmp(">", token) == 0){ |
90395b4b |
433 | ungetToken(in); |
9f2d599d |
434 | return 0; |
90395b4b |
435 | } |
90395b4b |
436 | if(strcmp("value",token))in->error(in,"value was expected"); |
01e5c8ac |
437 | |
90395b4b |
438 | getEqual(in); |
439 | token = getToken(in); |
9f2d599d |
440 | |
01e5c8ac |
441 | if(in->type == QUOTEDSTRING) { |
442 | in->type = NUMBER; |
443 | token2 = token; |
444 | do { |
445 | if (!isdigit(*token2)) { |
446 | in->type = QUOTEDSTRING; |
447 | break; |
448 | } |
449 | } while (*(++token2) != '\0'); |
450 | } |
451 | |
452 | if(in->type == NUMBER) |
9f2d599d |
453 | *value = strtoll(token, NULL, 0); |
01e5c8ac |
454 | else |
9f2d599d |
455 | goto error; |
9f2d599d |
456 | return 1; |
9f2d599d |
457 | error: |
458 | in->error(in,"incorrect size specification"); |
459 | return 0; |
90395b4b |
460 | } |
461 | |
90699b2b |
462 | char * getDescription(parse_file_t *in) |
90395b4b |
463 | { |
464 | long int pos; |
83e160f2 |
465 | char * token, *str; |
466 | int car; |
90395b4b |
467 | |
468 | pos = ftell(in->fp); |
469 | |
470 | getLAnglebracket(in); |
471 | token = getName(in); |
472 | if(strcmp("description",token)){ |
473 | fseek(in->fp, pos, SEEK_SET); |
474 | return NULL; |
475 | } |
476 | |
477 | getRAnglebracket(in); |
478 | |
479 | pos = 0; |
480 | while((car = getc(in->fp)) != EOF) { |
481 | if(car == '<') break; |
482 | if(car == '\0') continue; |
483 | in->buffer[pos] = car; |
484 | pos++; |
485 | } |
486 | if(car == EOF)in->error(in,"not a valid description"); |
487 | in->buffer[pos] = '\0'; |
488 | |
489 | str = allocAndCopy(in->buffer); |
490 | |
491 | getForwardslash(in); |
492 | token = getName(in); |
493 | if(strcmp("description", token))in->error(in,"not a valid description"); |
494 | getRAnglebracket(in); |
495 | |
496 | return str; |
497 | } |
498 | |
499 | /***************************************************************************** |
500 | *Function name |
501 | * parseFacility : generate event list |
502 | *Input params |
503 | * in : input file handle |
504 | * fac : empty facility |
505 | *Output params |
506 | * fac : facility filled with event list |
507 | ****************************************************************************/ |
508 | |
90699b2b |
509 | void parseFacility(parse_file_t *in, facility_t * fac) |
90395b4b |
510 | { |
511 | char * token; |
90699b2b |
512 | event_t *ev; |
90395b4b |
513 | |
514 | getFacilityAttributes(in, fac); |
515 | if(fac->name == NULL) in->error(in, "Attribute not named"); |
f5d7967f |
516 | |
90395b4b |
517 | fac->capname = allocAndCopy(fac->name); |
518 | strupper(fac->capname); |
519 | getRAnglebracket(in); |
520 | |
521 | fac->description = getDescription(in); |
522 | |
523 | while(1){ |
524 | getLAnglebracket(in); |
525 | |
526 | token = getToken(in); |
527 | if(in->type == ENDFILE) |
528 | in->error(in,"the definition of the facility is not finished"); |
529 | |
530 | if(strcmp("event",token) == 0){ |
90699b2b |
531 | ev = (event_t*) memAlloc(sizeof(event_t)); |
90395b4b |
532 | sequence_push(&(fac->events),ev); |
533 | parseEvent(in,ev, &(fac->unnamed_types), &(fac->named_types)); |
534 | }else if(strcmp("type",token) == 0){ |
535 | parseTypeDefinition(in, &(fac->unnamed_types), &(fac->named_types)); |
536 | }else if(in->type == FORWARDSLASH){ |
537 | break; |
538 | }else in->error(in,"event or type token expected\n"); |
539 | } |
540 | |
541 | token = getName(in); |
542 | if(strcmp("facility",token)) in->error(in,"not the end of the facility"); |
543 | getRAnglebracket(in); //</facility> |
544 | } |
545 | |
546 | /***************************************************************************** |
547 | *Function name |
548 | * parseEvent : generate event from event definition |
549 | *Input params |
550 | * in : input file handle |
551 | * ev : new event |
552 | * unnamed_types : array of unamed types |
553 | * named_types : array of named types |
554 | *Output params |
555 | * ev : new event (parameters are passed to it) |
556 | ****************************************************************************/ |
557 | |
90699b2b |
558 | void parseEvent(parse_file_t *in, event_t * ev, sequence_t * unnamed_types, |
559 | table_t * named_types) |
90395b4b |
560 | { |
561 | char *token; |
f104d082 |
562 | field_t *f; |
90395b4b |
563 | |
f104d082 |
564 | sequence_init(&(ev->fields)); |
90395b4b |
565 | //<event name=eventtype_name> |
566 | getEventAttributes(in, ev); |
567 | if(ev->name == NULL) in->error(in, "Event not named"); |
568 | getRAnglebracket(in); |
569 | |
f104d082 |
570 | //<description>...</description> |
90395b4b |
571 | ev->description = getDescription(in); |
572 | |
f104d082 |
573 | int got_end = 0; |
574 | /* Events can have multiple fields. each field form at least a function |
575 | * parameter of the logging function. */ |
576 | while(!got_end) { |
577 | getLAnglebracket(in); |
578 | token = getToken(in); |
579 | |
580 | switch(in->type) { |
581 | case FORWARDSLASH: /* </event> */ |
582 | token = getName(in); |
583 | if(strcmp("event",token))in->error(in,"not an event definition"); |
584 | getRAnglebracket(in); //</event> |
585 | got_end = 1; |
586 | break; |
587 | case NAME: /* a field */ |
588 | if(strcmp("field",token))in->error(in,"expecting a field"); |
589 | f = (field_t *)memAlloc(sizeof(field_t)); |
590 | sequence_push(&(ev->fields),f); |
591 | parseFields(in, f, unnamed_types, named_types, 1); |
592 | break; |
593 | default: |
594 | in->error(in, "expecting </event> or <field >"); |
595 | break; |
596 | } |
597 | } |
598 | #if 0 |
599 | if(in->type == FORWARDSLASH){ //</event> NOTHING |
600 | ev->type = NULL; |
601 | }else if(in->type == NAME){ |
602 | if(strcmp("struct",token)==0 || strcmp("typeref",token)==0){ |
603 | ungetToken(in); |
604 | ev->type = parseType(in,NULL, unnamed_types, named_types); |
605 | if(ev->type->type != STRUCT && ev->type->type != NONE) |
606 | in->error(in,"type must be a struct"); |
607 | }else in->error(in, "not a valid type"); |
608 | |
609 | getLAnglebracket(in); |
610 | getForwardslash(in); |
611 | }else in->error(in,"not a struct type"); |
612 | getLAnglebracket(in); |
613 | getForwardslash(in); |
614 | token = getName(in); |
615 | if(strcmp("event",token))in->error(in,"not an event definition"); |
616 | getRAnglebracket(in); //</event> |
617 | #endif //0 |
90395b4b |
618 | } |
619 | |
620 | /***************************************************************************** |
621 | *Function name |
622 | * parseField : get field infomation from buffer |
623 | *Input params |
624 | * in : input file handle |
f104d082 |
625 | * f : field |
90395b4b |
626 | * unnamed_types : array of unamed types |
627 | * named_types : array of named types |
f104d082 |
628 | * tag : is field surrounded by a <field> </field> tag ? |
90395b4b |
629 | ****************************************************************************/ |
630 | |
f104d082 |
631 | void parseFields(parse_file_t *in, field_t *f, |
90699b2b |
632 | sequence_t * unnamed_types, |
f104d082 |
633 | table_t * named_types, |
634 | int tag) |
90395b4b |
635 | { |
636 | char * token; |
f104d082 |
637 | if(tag) { |
638 | //<field name=field_name> <description> <type> </field> |
639 | getFieldAttributes(in, f); |
640 | if(f->name == NULL) in->error(in, "Field not named"); |
641 | getRAnglebracket(in); |
90395b4b |
642 | |
f104d082 |
643 | f->description = getDescription(in); |
15244807 |
644 | } else { |
645 | f->description = NULL; |
f104d082 |
646 | } |
90395b4b |
647 | |
648 | //<int size=...> |
649 | getLAnglebracket(in); |
650 | f->type = parseType(in,NULL, unnamed_types, named_types); |
651 | |
f104d082 |
652 | if(tag) { |
653 | getLAnglebracket(in); |
654 | getForwardslash(in); |
655 | token = getName(in); |
656 | if(strcmp("field",token))in->error(in,"not a valid field definition"); |
657 | getRAnglebracket(in); //</field> |
658 | } |
90395b4b |
659 | } |
660 | |
661 | |
662 | /***************************************************************************** |
663 | *Function name |
664 | * parseType : get type information, type can be : |
665 | * Primitive: |
666 | * int(size,fmt); uint(size,fmt); float(size,fmt); |
667 | * string(fmt); enum(size,fmt,(label1,label2...)) |
668 | * Compound: |
669 | * array(arraySize, type); sequence(lengthSize,type) |
670 | * struct(field(name,type,description)...) |
671 | * type name: |
672 | * type(name,type) |
673 | *Input params |
674 | * in : input file handle |
675 | * inType : a type descriptor |
676 | * unnamed_types : array of unamed types |
677 | * named_types : array of named types |
678 | *Return values |
679 | * type_descriptor* : a type descriptor |
680 | ****************************************************************************/ |
681 | |
90699b2b |
682 | type_descriptor_t *parseType(parse_file_t *in, type_descriptor_t *inType, |
683 | sequence_t * unnamed_types, table_t * named_types) |
90395b4b |
684 | { |
685 | char *token; |
90699b2b |
686 | type_descriptor_t *t; |
f104d082 |
687 | field_t *f; |
90395b4b |
688 | |
689 | if(inType == NULL) { |
90699b2b |
690 | t = (type_descriptor_t *) memAlloc(sizeof(type_descriptor_t)); |
90395b4b |
691 | t->type_name = NULL; |
692 | t->type = NONE; |
693 | t->fmt = NULL; |
694 | sequence_push(unnamed_types,t); |
695 | } |
696 | else t = inType; |
697 | |
698 | token = getName(in); |
699 | |
700 | if(strcmp(token,"struct") == 0) { |
701 | t->type = STRUCT; |
f104d082 |
702 | getTypeAttributes(in, t, unnamed_types, named_types); |
90395b4b |
703 | getRAnglebracket(in); //<struct> |
704 | getLAnglebracket(in); //<field name=..> |
705 | token = getToken(in); |
706 | sequence_init(&(t->fields)); |
707 | while(strcmp("field",token) == 0){ |
f104d082 |
708 | f = (field_t *)memAlloc(sizeof(field_t)); |
709 | sequence_push(&(t->fields),f); |
710 | |
711 | parseFields(in, f, unnamed_types, named_types, 1); |
90395b4b |
712 | |
713 | //next field |
714 | getLAnglebracket(in); |
715 | token = getToken(in); |
716 | } |
717 | if(strcmp("/",token))in->error(in,"not a valid structure definition"); |
718 | token = getName(in); |
719 | if(strcmp("struct",token)!=0) |
720 | in->error(in,"not a valid structure definition"); |
721 | getRAnglebracket(in); //</struct> |
722 | } |
723 | else if(strcmp(token,"union") == 0) { |
724 | t->type = UNION; |
f104d082 |
725 | getTypeAttributes(in, t, unnamed_types, named_types); |
726 | getRAnglebracket(in); //<union> |
90395b4b |
727 | |
728 | getLAnglebracket(in); //<field name=..> |
729 | token = getToken(in); |
730 | sequence_init(&(t->fields)); |
731 | while(strcmp("field",token) == 0){ |
f104d082 |
732 | f = (field_t *)memAlloc(sizeof(field_t)); |
733 | sequence_push(&(t->fields),f); |
734 | parseFields(in, f, unnamed_types, named_types, 1); |
90395b4b |
735 | |
736 | //next field |
737 | getLAnglebracket(in); |
738 | token = getToken(in); |
739 | } |
740 | if(strcmp("/",token))in->error(in,"not a valid union definition"); |
741 | token = getName(in); |
742 | if(strcmp("union",token)!=0) |
743 | in->error(in,"not a valid union definition"); |
744 | getRAnglebracket(in); //</union> |
745 | } |
746 | else if(strcmp(token,"array") == 0) { |
747 | t->type = ARRAY; |
f104d082 |
748 | sequence_init(&(t->fields)); |
749 | getTypeAttributes(in, t, unnamed_types, named_types); |
750 | if(t->size == 0) in->error(in, "Array has empty size"); |
751 | getForwardslash(in); |
90395b4b |
752 | getRAnglebracket(in); //<array size=n> |
753 | |
f104d082 |
754 | //getLAnglebracket(in); //<subtype> |
755 | /* subfield */ |
73e6c609 |
756 | f = (field_t *)memAlloc(sizeof(field_t)); |
757 | |
758 | f->name = NULL; |
759 | sequence_push(&(t->fields),f); |
f104d082 |
760 | parseFields(in, f, unnamed_types, named_types, 0); |
761 | |
762 | //getLAnglebracket(in); //<type struct> |
763 | //t->nested_type = parseType(in, NULL, unnamed_types, named_types); |
90395b4b |
764 | |
765 | getLAnglebracket(in); //</array> |
766 | getForwardslash(in); |
767 | token = getName(in); |
768 | if(strcmp("array",token))in->error(in,"not a valid array definition"); |
769 | getRAnglebracket(in); //</array> |
770 | } |
771 | else if(strcmp(token,"sequence") == 0) { |
772 | t->type = SEQUENCE; |
f104d082 |
773 | sequence_init(&(t->fields)); |
7df766d3 |
774 | getTypeAttributes(in, t, unnamed_types, named_types); |
775 | getForwardslash(in); |
f104d082 |
776 | getRAnglebracket(in); //<sequence> |
777 | |
778 | //getLAnglebracket(in); //<sequence size type> |
779 | /* subfield */ |
73e6c609 |
780 | f = (field_t *)memAlloc(sizeof(field_t)); |
781 | f->name = NULL; |
782 | sequence_push(&(t->fields),f); |
f104d082 |
783 | parseFields(in, f, unnamed_types, named_types, 0); |
784 | |
785 | //getLAnglebracket(in); //<subtype> |
786 | /* subfield */ |
73e6c609 |
787 | f = (field_t *)memAlloc(sizeof(field_t)); |
788 | f->name = NULL; |
789 | sequence_push(&(t->fields),f); |
f104d082 |
790 | parseFields(in, f, unnamed_types, named_types, 0); |
791 | |
792 | //getLAnglebracket(in); //<type sequence> |
793 | //t->length_type = parseType(in, NULL, unnamed_types, named_types); |
794 | |
795 | //getLAnglebracket(in); //<type sequence> |
796 | |
797 | //t->nested_type = parseType(in, NULL, unnamed_types, named_types); |
798 | |
799 | if(t->fields.position < 1) in->error(in, "Sequence has no length type"); |
800 | if(t->fields.position < 2) in->error(in, "Sequence has no subtype"); |
801 | switch(((field_t*)t->fields.array[0])->type->type) { |
802 | case UINT_FIXED : |
803 | case UCHAR : |
804 | case USHORT : |
805 | case UINT : |
806 | case ULONG : |
807 | case SIZE_T : |
808 | case OFF_T : |
809 | break; |
810 | default: |
811 | in->error(in, "Wrong length type for sequence"); |
812 | } |
90395b4b |
813 | |
814 | getLAnglebracket(in); //</sequence> |
815 | getForwardslash(in); |
816 | token = getName(in); |
817 | if(strcmp("sequence",token))in->error(in,"not a valid sequence definition"); |
818 | getRAnglebracket(in); //</sequence> |
819 | } |
820 | else if(strcmp(token,"enum") == 0) { |
f104d082 |
821 | char * str; |
9f2d599d |
822 | long long value = -1; |
f104d082 |
823 | |
90395b4b |
824 | t->type = ENUM; |
825 | sequence_init(&(t->labels)); |
f104d082 |
826 | sequence_init(&(t->labels_values)); |
90395b4b |
827 | sequence_init(&(t->labels_description)); |
828 | t->already_printed = 0; |
f104d082 |
829 | getTypeAttributes(in, t, unnamed_types, named_types); |
830 | //if(t->size == 0) in->error(in, "Sequence has empty size"); |
831 | //Mathieu : we fix enum size to target int size. GCC is always like this. |
832 | //fox copy optimisation. |
833 | if(t->size != 0) in->error(in, "Enum has fixed size of target int."); |
834 | t->size = 0; |
90395b4b |
835 | getRAnglebracket(in); |
836 | |
837 | //<label name=label1 value=n/> |
838 | getLAnglebracket(in); |
839 | token = getToken(in); //"label" or "/" |
840 | while(strcmp("label",token) == 0){ |
f104d082 |
841 | int *label_value = malloc(sizeof(int)); |
9f2d599d |
842 | int has_value = 0; |
843 | long long loc_value; |
f104d082 |
844 | |
7b143580 |
845 | str = allocAndCopy(getNameAttribute(in)); |
9f2d599d |
846 | has_value = getValueAttribute(in, &loc_value); |
f104d082 |
847 | |
73e6c609 |
848 | sequence_push(&(t->labels),str); |
f104d082 |
849 | |
9f2d599d |
850 | if(has_value) value = loc_value; |
f104d082 |
851 | else value++; |
852 | |
853 | *label_value = value; |
854 | sequence_push(&(t->labels_values), label_value); |
90395b4b |
855 | |
856 | getForwardslash(in); |
857 | getRAnglebracket(in); |
858 | |
859 | //read description if any. May be NULL. |
860 | str = allocAndCopy(getDescription(in)); |
861 | sequence_push(&(t->labels_description),str); |
862 | |
863 | //next label definition |
864 | getLAnglebracket(in); |
865 | token = getToken(in); //"label" or "/" |
866 | } |
867 | if(strcmp("/",token))in->error(in, "not a valid enum definition"); |
868 | token = getName(in); |
869 | if(strcmp("enum",token))in->error(in, "not a valid enum definition"); |
870 | getRAnglebracket(in); //</label> |
871 | } |
f104d082 |
872 | else if(strcmp(token,"int_fixed") == 0) { |
873 | t->type = INT_FIXED; |
874 | getTypeAttributes(in, t, unnamed_types, named_types); |
875 | if(t->size == 0) in->error(in, "int has empty size"); |
876 | getForwardslash(in); |
877 | getRAnglebracket(in); |
878 | } |
879 | else if(strcmp(token,"uint_fixed") == 0) { |
880 | t->type = UINT_FIXED; |
881 | getTypeAttributes(in, t, unnamed_types, named_types); |
882 | if(t->size == 0) in->error(in, "uint has empty size"); |
883 | getForwardslash(in); |
884 | getRAnglebracket(in); |
885 | } |
886 | else if(strcmp(token,"char") == 0) { |
887 | t->type = CHAR; |
f104d082 |
888 | getTypeAttributes(in, t, unnamed_types, named_types); |
743e50fd |
889 | t->size = 1; |
f104d082 |
890 | getForwardslash(in); |
891 | getRAnglebracket(in); |
892 | } |
893 | else if(strcmp(token,"uchar") == 0) { |
894 | t->type = UCHAR; |
f104d082 |
895 | getTypeAttributes(in, t, unnamed_types, named_types); |
743e50fd |
896 | t->size = 1; |
f104d082 |
897 | getForwardslash(in); |
898 | getRAnglebracket(in); |
899 | } |
900 | else if(strcmp(token,"short") == 0) { |
901 | t->type = SHORT; |
f104d082 |
902 | getTypeAttributes(in, t, unnamed_types, named_types); |
743e50fd |
903 | t->size = 2; |
f104d082 |
904 | getForwardslash(in); |
905 | getRAnglebracket(in); |
906 | } |
907 | else if(strcmp(token,"ushort") == 0) { |
908 | t->type = USHORT; |
f104d082 |
909 | getTypeAttributes(in, t, unnamed_types, named_types); |
743e50fd |
910 | t->size = 2; |
f104d082 |
911 | getForwardslash(in); |
912 | getRAnglebracket(in); |
913 | } |
90395b4b |
914 | else if(strcmp(token,"int") == 0) { |
915 | t->type = INT; |
f104d082 |
916 | getTypeAttributes(in, t, unnamed_types, named_types); |
90395b4b |
917 | getForwardslash(in); |
918 | getRAnglebracket(in); |
919 | } |
920 | else if(strcmp(token,"uint") == 0) { |
921 | t->type = UINT; |
f104d082 |
922 | getTypeAttributes(in, t, unnamed_types, named_types); |
90395b4b |
923 | getForwardslash(in); |
924 | getRAnglebracket(in); |
925 | } |
f104d082 |
926 | |
90395b4b |
927 | else if(strcmp(token,"pointer") == 0) { |
928 | t->type = POINTER; |
f104d082 |
929 | getTypeAttributes(in, t, unnamed_types, named_types); |
90395b4b |
930 | getForwardslash(in); |
931 | getRAnglebracket(in); |
932 | } |
933 | else if(strcmp(token,"long") == 0) { |
934 | t->type = LONG; |
f104d082 |
935 | getTypeAttributes(in, t, unnamed_types, named_types); |
90395b4b |
936 | getForwardslash(in); |
937 | getRAnglebracket(in); |
938 | } |
939 | else if(strcmp(token,"ulong") == 0) { |
940 | t->type = ULONG; |
f104d082 |
941 | getTypeAttributes(in, t, unnamed_types, named_types); |
90395b4b |
942 | getForwardslash(in); |
943 | getRAnglebracket(in); |
944 | } |
945 | else if(strcmp(token,"size_t") == 0) { |
946 | t->type = SIZE_T; |
f104d082 |
947 | getTypeAttributes(in, t, unnamed_types, named_types); |
90395b4b |
948 | getForwardslash(in); |
949 | getRAnglebracket(in); |
950 | } |
951 | else if(strcmp(token,"ssize_t") == 0) { |
952 | t->type = SSIZE_T; |
f104d082 |
953 | getTypeAttributes(in, t, unnamed_types, named_types); |
90395b4b |
954 | getForwardslash(in); |
955 | getRAnglebracket(in); |
956 | } |
957 | else if(strcmp(token,"off_t") == 0) { |
958 | t->type = OFF_T; |
f104d082 |
959 | getTypeAttributes(in, t, unnamed_types, named_types); |
90395b4b |
960 | getForwardslash(in); |
961 | getRAnglebracket(in); |
962 | } |
963 | else if(strcmp(token,"float") == 0) { |
964 | t->type = FLOAT; |
f104d082 |
965 | getTypeAttributes(in, t, unnamed_types, named_types); |
90395b4b |
966 | getForwardslash(in); |
967 | getRAnglebracket(in); |
968 | } |
969 | else if(strcmp(token,"string") == 0) { |
970 | t->type = STRING; |
f104d082 |
971 | getTypeAttributes(in, t, unnamed_types, named_types); |
90395b4b |
972 | getForwardslash(in); |
973 | getRAnglebracket(in); |
974 | } |
975 | else if(strcmp(token,"typeref") == 0){ |
976 | // Must be a named type |
f104d082 |
977 | free(t); |
978 | sequence_pop(unnamed_types); |
979 | token = getNameAttribute(in); |
980 | t = find_named_type(token, named_types); |
981 | if(t == NULL) in->error(in,"Named referred to must be pre-declared."); |
982 | getForwardslash(in); //<typeref name=type_name/> |
983 | getRAnglebracket(in); |
984 | return t; |
90395b4b |
985 | }else in->error(in,"not a valid type"); |
986 | |
987 | return t; |
988 | } |
989 | |
990 | /***************************************************************************** |
991 | *Function name |
992 | * find_named_type : find a named type from hash table |
993 | *Input params |
994 | * name : type name |
995 | * named_types : array of named types |
996 | *Return values |
997 | * type_descriptor * : a type descriptor |
998 | *****************************************************************************/ |
999 | |
90699b2b |
1000 | type_descriptor_t * find_named_type(char *name, table_t * named_types) |
90395b4b |
1001 | { |
90699b2b |
1002 | type_descriptor_t *t; |
90395b4b |
1003 | |
500d6465 |
1004 | t = (type_descriptor_t*)table_find(named_types,name); |
f104d082 |
1005 | |
90395b4b |
1006 | return t; |
f104d082 |
1007 | } |
1008 | |
1009 | type_descriptor_t * create_named_type(char *name, table_t * named_types) |
1010 | { |
1011 | type_descriptor_t *t; |
1012 | |
1013 | t = (type_descriptor_t *)memAlloc(sizeof(type_descriptor_t)); |
1014 | t->type_name = allocAndCopy(name); |
1015 | t->type = NONE; |
1016 | t->fmt = NULL; |
1017 | table_insert(named_types,t->type_name,t); |
1018 | // table_insert(named_types,allocAndCopy(name),t); |
1019 | return t; |
1020 | } |
90395b4b |
1021 | |
1022 | /***************************************************************************** |
1023 | *Function name |
1024 | * parseTypeDefinition : get type information from type definition |
1025 | *Input params |
1026 | * in : input file handle |
1027 | * unnamed_types : array of unamed types |
1028 | * named_types : array of named types |
1029 | *****************************************************************************/ |
1030 | |
90699b2b |
1031 | void parseTypeDefinition(parse_file_t * in, sequence_t * unnamed_types, |
1032 | table_t * named_types) |
90395b4b |
1033 | { |
1034 | char *token; |
90699b2b |
1035 | type_descriptor_t *t; |
90395b4b |
1036 | |
1037 | token = getNameAttribute(in); |
1038 | if(token == NULL) in->error(in, "Type has empty name"); |
f104d082 |
1039 | t = create_named_type(token, named_types); |
90395b4b |
1040 | |
1041 | if(t->type != NONE) in->error(in,"redefinition of named type"); |
1042 | getRAnglebracket(in); //<type name=type_name> |
1043 | getLAnglebracket(in); //< |
1044 | token = getName(in); |
1045 | //MD ??if(strcmp("struct",token))in->error(in,"not a valid type definition"); |
1046 | ungetToken(in); |
1047 | parseType(in,t, unnamed_types, named_types); |
1048 | |
1049 | //</type> |
1050 | getLAnglebracket(in); |
1051 | getForwardslash(in); |
1052 | token = getName(in); |
1053 | if(strcmp("type",token))in->error(in,"not a valid type definition"); |
1054 | getRAnglebracket(in); //</type> |
1055 | } |
1056 | |
1057 | /************************************************************************** |
1058 | * Function : |
1059 | * getComa, getName, getNumber, getEqual |
1060 | * Description : |
1061 | * Read a token from the input file, check its type, return it scontent. |
1062 | * |
1063 | * Parameters : |
1064 | * in , input file handle. |
1065 | * |
1066 | * Return values : |
1067 | * address of token content. |
1068 | * |
1069 | **************************************************************************/ |
1070 | |
90699b2b |
1071 | char *getName(parse_file_t * in) |
90395b4b |
1072 | { |
1073 | char *token; |
1074 | |
1075 | token = getToken(in); |
7b143580 |
1076 | // Optional descriptions |
1077 | // if(in->type != NAME) in->error(in,"Name token was expected"); |
90395b4b |
1078 | return token; |
1079 | } |
1080 | |
90699b2b |
1081 | int getNumber(parse_file_t * in) |
90395b4b |
1082 | { |
1083 | char *token; |
1084 | |
1085 | token = getToken(in); |
1086 | if(in->type != NUMBER) in->error(in, "Number token was expected"); |
1087 | return atoi(token); |
1088 | } |
1089 | |
90699b2b |
1090 | char *getForwardslash(parse_file_t * in) |
90395b4b |
1091 | { |
1092 | char *token; |
1093 | |
1094 | token = getToken(in); |
f104d082 |
1095 | //if(in->type != FORWARDSLASH) in->error(in, "forward slash token was expected"); |
1096 | /* Mathieu : final / is optional now. */ |
1097 | if(in->type != FORWARDSLASH) ungetToken(in); |
1098 | |
90395b4b |
1099 | return token; |
1100 | } |
1101 | |
90699b2b |
1102 | char *getLAnglebracket(parse_file_t * in) |
90395b4b |
1103 | { |
1104 | char *token; |
1105 | |
1106 | token = getToken(in); |
1107 | if(in->type != LANGLEBRACKET) in->error(in, "Left angle bracket was expected"); |
1108 | return token; |
1109 | } |
1110 | |
90699b2b |
1111 | char *getRAnglebracket(parse_file_t * in) |
90395b4b |
1112 | { |
1113 | char *token; |
1114 | |
1115 | token = getToken(in); |
1116 | if(in->type != RANGLEBRACKET) in->error(in, "Right angle bracket was expected"); |
1117 | return token; |
1118 | } |
1119 | |
90699b2b |
1120 | char *getQuotedString(parse_file_t * in) |
90395b4b |
1121 | { |
1122 | char *token; |
1123 | |
1124 | token = getToken(in); |
1125 | if(in->type != QUOTEDSTRING) in->error(in, "quoted string was expected"); |
1126 | return token; |
1127 | } |
1128 | |
90699b2b |
1129 | char * getEqual(parse_file_t *in) |
90395b4b |
1130 | { |
1131 | char *token; |
1132 | |
1133 | token = getToken(in); |
1134 | if(in->type != EQUAL) in->error(in, "equal was expected"); |
1135 | return token; |
1136 | } |
1137 | |
83e160f2 |
1138 | int seekNextChar(parse_file_t *in) |
90395b4b |
1139 | { |
83e160f2 |
1140 | int car; |
90395b4b |
1141 | while((car = getc(in->fp)) != EOF) { |
1142 | if(!isspace(car)){ |
1143 | ungetc(car,in->fp); |
1144 | return car; |
1145 | } |
1146 | } |
1147 | return EOF; |
1148 | } |
1149 | |
1150 | /****************************************************************** |
1151 | * Function : |
1152 | * getToken, ungetToken |
1153 | * Description : |
1154 | * Read a token from the input file and return its type and content. |
1155 | * Line numbers are accounted for and whitespace/comments are skipped. |
1156 | * |
1157 | * Parameters : |
1158 | * in, input file handle. |
1159 | * |
1160 | * Return values : |
1161 | * address of token content. |
1162 | * |
1163 | ******************************************************************/ |
1164 | |
90699b2b |
1165 | void ungetToken(parse_file_t * in) |
90395b4b |
1166 | { |
1167 | in->unget = 1; |
1168 | } |
1169 | |
90699b2b |
1170 | char *getToken(parse_file_t * in) |
90395b4b |
1171 | { |
1172 | FILE *fp = in->fp; |
83e160f2 |
1173 | int car, car1; |
90395b4b |
1174 | int pos = 0, escaped; |
1175 | |
1176 | if(in->unget == 1) { |
1177 | in->unget = 0; |
1178 | return in->buffer; |
1179 | } |
1180 | |
1181 | /* skip whitespace and comments */ |
1182 | |
1183 | while((car = getc(fp)) != EOF) { |
1184 | if(car == '/') { |
1185 | car1 = getc(fp); |
1186 | if(car1 == '*') skipComment(in); |
1187 | else if(car1 == '/') skipEOL(in); |
1188 | else { |
1189 | car1 = ungetc(car1,fp); |
1190 | break; |
1191 | } |
1192 | } |
1193 | else if(car == '\n') in->lineno++; |
1194 | else if(!isspace(car)) break; |
1195 | } |
1196 | |
1197 | switch(car) { |
1198 | case EOF: |
1199 | in->type = ENDFILE; |
1200 | break; |
1201 | case '/': |
1202 | in->type = FORWARDSLASH; |
1203 | in->buffer[pos] = car; |
1204 | pos++; |
1205 | break; |
1206 | case '<': |
1207 | in->type = LANGLEBRACKET; |
1208 | in->buffer[pos] = car; |
1209 | pos++; |
1210 | break; |
1211 | case '>': |
1212 | in->type = RANGLEBRACKET; |
1213 | in->buffer[pos] = car; |
1214 | pos++; |
1215 | break; |
1216 | case '=': |
1217 | in->type = EQUAL; |
1218 | in->buffer[pos] = car; |
1219 | pos++; |
1220 | break; |
1221 | case '"': |
1222 | escaped = 0; |
1223 | while((car = getc(fp)) != EOF && pos < BUFFER_SIZE) { |
1224 | if(car == '\\' && escaped == 0) { |
01e5c8ac |
1225 | in->buffer[pos] = car; |
1226 | pos++; |
90395b4b |
1227 | escaped = 1; |
1228 | continue; |
1229 | } |
1230 | if(car == '"' && escaped == 0) break; |
1231 | if(car == '\n' && escaped == 0) { |
1232 | in->error(in, "non escaped newline inside quoted string"); |
1233 | } |
1234 | if(car == '\n') in->lineno++; |
1235 | in->buffer[pos] = car; |
1236 | pos++; |
1237 | escaped = 0; |
1238 | } |
1239 | if(car == EOF) in->error(in,"no ending quotemark"); |
1240 | if(pos == BUFFER_SIZE) in->error(in, "quoted string token too large"); |
1241 | in->type = QUOTEDSTRING; |
1242 | break; |
1243 | default: |
1244 | if(isdigit(car)) { |
1245 | in->buffer[pos] = car; |
1246 | pos++; |
1247 | while((car = getc(fp)) != EOF && pos < BUFFER_SIZE) { |
1248 | if(!isdigit(car)) { |
1249 | ungetc(car,fp); |
1250 | break; |
1251 | } |
1252 | in->buffer[pos] = car; |
1253 | pos++; |
1254 | } |
01e5c8ac |
1255 | if(car == EOF) ungetc(car,fp); |
90395b4b |
1256 | if(pos == BUFFER_SIZE) in->error(in, "number token too large"); |
1257 | in->type = NUMBER; |
01e5c8ac |
1258 | } |
7b143580 |
1259 | else if(isalnum(car) || car == '_' || car == '-') { |
90395b4b |
1260 | in->buffer[0] = car; |
1261 | pos = 1; |
1262 | while((car = getc(fp)) != EOF && pos < BUFFER_SIZE) { |
7b143580 |
1263 | if(!(isalnum(car) || car == '_' || car == '-')) { |
90395b4b |
1264 | ungetc(car,fp); |
1265 | break; |
1266 | } |
1267 | in->buffer[pos] = car; |
1268 | pos++; |
1269 | } |
01e5c8ac |
1270 | if(car == EOF) ungetc(car,fp); |
90395b4b |
1271 | if(pos == BUFFER_SIZE) in->error(in, "name token too large"); |
1272 | in->type = NAME; |
01e5c8ac |
1273 | } else if(car == '?') { |
1274 | in->buffer[0] = car; |
1275 | pos++; |
1276 | } |
90395b4b |
1277 | else in->error(in, "invalid character, unrecognized token"); |
1278 | } |
1279 | in->buffer[pos] = 0; |
1280 | return in->buffer; |
1281 | } |
1282 | |
90699b2b |
1283 | void skipComment(parse_file_t * in) |
90395b4b |
1284 | { |
83e160f2 |
1285 | int car; |
90395b4b |
1286 | while((car = getc(in->fp)) != EOF) { |
1287 | if(car == '\n') in->lineno++; |
1288 | else if(car == '*') { |
1289 | car = getc(in->fp); |
1290 | if(car ==EOF) break; |
1291 | if(car == '/') return; |
1292 | ungetc(car,in->fp); |
1293 | } |
1294 | } |
1295 | if(car == EOF) in->error(in,"comment begining with '/*' has no ending '*/'"); |
1296 | } |
1297 | |
90699b2b |
1298 | void skipEOL(parse_file_t * in) |
90395b4b |
1299 | { |
83e160f2 |
1300 | int car; |
90395b4b |
1301 | while((car = getc(in->fp)) != EOF) { |
1302 | if(car == '\n') { |
1303 | ungetc(car,in->fp); |
1304 | break; |
1305 | } |
1306 | } |
1307 | if(car == EOF)ungetc(car, in->fp); |
1308 | } |
1309 | |
1310 | /***************************************************************************** |
1311 | *Function name |
1312 | * checkNamedTypesImplemented : check if all named types have definition |
1313 | ****************************************************************************/ |
1314 | |
90699b2b |
1315 | void checkNamedTypesImplemented(table_t * named_types) |
90395b4b |
1316 | { |
90699b2b |
1317 | type_descriptor_t *t; |
90395b4b |
1318 | int pos; |
1319 | char str[256]; |
1320 | |
1321 | for(pos = 0 ; pos < named_types->values.position; pos++) { |
90699b2b |
1322 | t = (type_descriptor_t *) named_types->values.array[pos]; |
90395b4b |
1323 | if(t->type == NONE){ |
90699b2b |
1324 | sprintf(str,"named type '%s' has no definition", |
1325 | (char*)named_types->keys.array[pos]); |
90395b4b |
1326 | error_callback(NULL,str); |
1327 | } |
1328 | } |
1329 | } |
1330 | |
1331 | |
1332 | /***************************************************************************** |
1333 | *Function name |
1334 | * generateChecksum : generate checksum for the facility |
1335 | *Input Params |
1336 | * facName : name of facility |
1337 | *Output Params |
1338 | * checksum : checksum for the facility |
1339 | ****************************************************************************/ |
1340 | |
90699b2b |
1341 | void generateChecksum(char* facName, |
f104d082 |
1342 | unsigned int * checksum, sequence_t * events) |
90395b4b |
1343 | { |
1344 | unsigned long crc ; |
1345 | int pos; |
90699b2b |
1346 | event_t * ev; |
2312de30 |
1347 | unsigned int i; |
90395b4b |
1348 | |
1349 | crc = crc32(facName); |
1350 | for(pos = 0; pos < events->position; pos++){ |
90699b2b |
1351 | ev = (event_t *)(events->array[pos]); |
f104d082 |
1352 | crc = partial_crc32(ev->name, crc); |
2312de30 |
1353 | for(i = 0; i < ev->fields.position; i++) { |
f104d082 |
1354 | field_t *f = (field_t*)ev->fields.array[i]; |
1355 | crc = partial_crc32(f->name, crc); |
1356 | crc = getTypeChecksum(crc, f->type); |
1357 | } |
90395b4b |
1358 | } |
1359 | *checksum = crc; |
1360 | } |
1361 | |
1362 | /***************************************************************************** |
1363 | *Function name |
1364 | * getTypeChecksum : generate checksum by type info |
1365 | *Input Params |
1366 | * crc : checksum generated so far |
1367 | * type : type descriptor containing type info |
1368 | *Return value |
1369 | * unsigned long : checksum |
1370 | *****************************************************************************/ |
1371 | |
90699b2b |
1372 | unsigned long getTypeChecksum(unsigned long aCrc, type_descriptor_t * type) |
90395b4b |
1373 | { |
1374 | unsigned long crc = aCrc; |
1375 | char * str = NULL, buf[16]; |
1376 | int flag = 0, pos; |
90699b2b |
1377 | field_t * fld; |
90395b4b |
1378 | |
1379 | switch(type->type){ |
f104d082 |
1380 | case INT_FIXED: |
1381 | str = intOutputTypes[getSizeindex(type->size)]; |
90395b4b |
1382 | break; |
f104d082 |
1383 | case UINT_FIXED: |
1384 | str = uintOutputTypes[getSizeindex(type->size)]; |
90395b4b |
1385 | break; |
1386 | case POINTER: |
1387 | str = allocAndCopy("void *"); |
1388 | flag = 1; |
1389 | break; |
f104d082 |
1390 | case CHAR: |
1391 | str = allocAndCopy("signed char"); |
1392 | flag = 1; |
1393 | break; |
1394 | case UCHAR: |
1395 | str = allocAndCopy("unsigned char"); |
1396 | flag = 1; |
1397 | break; |
1398 | case SHORT: |
1399 | str = allocAndCopy("short"); |
1400 | flag = 1; |
1401 | break; |
1402 | case USHORT: |
1403 | str = allocAndCopy("unsigned short"); |
1404 | flag = 1; |
1405 | break; |
1406 | case INT: |
1407 | str = allocAndCopy("int"); |
1408 | flag = 1; |
1409 | break; |
1410 | case UINT: |
1411 | str = allocAndCopy("uint"); |
1412 | flag = 1; |
1413 | break; |
90395b4b |
1414 | case LONG: |
1415 | str = allocAndCopy("long"); |
1416 | flag = 1; |
1417 | break; |
1418 | case ULONG: |
1419 | str = allocAndCopy("unsigned long"); |
1420 | flag = 1; |
1421 | break; |
1422 | case SIZE_T: |
1423 | str = allocAndCopy("size_t"); |
1424 | flag = 1; |
1425 | break; |
1426 | case SSIZE_T: |
1427 | str = allocAndCopy("ssize_t"); |
1428 | flag = 1; |
1429 | break; |
1430 | case OFF_T: |
1431 | str = allocAndCopy("off_t"); |
1432 | flag = 1; |
1433 | break; |
1434 | case FLOAT: |
f104d082 |
1435 | str = floatOutputTypes[getSizeindex(type->size)]; |
90395b4b |
1436 | break; |
1437 | case STRING: |
1438 | str = allocAndCopy("string"); |
1439 | flag = 1; |
1440 | break; |
1441 | case ENUM: |
f104d082 |
1442 | //str = appendString("enum ", uintOutputTypes[getSizeindex(type->size)]); |
1443 | str = allocAndCopy("enum"); |
90395b4b |
1444 | flag = 1; |
1445 | break; |
1446 | case ARRAY: |
f104d082 |
1447 | sprintf(buf,"%zu", type->size); |
90395b4b |
1448 | str = appendString("array ",buf); |
1449 | flag = 1; |
1450 | break; |
1451 | case SEQUENCE: |
743e50fd |
1452 | str = allocAndCopy("sequence "); |
90395b4b |
1453 | flag = 1; |
1454 | break; |
1455 | case STRUCT: |
1456 | str = allocAndCopy("struct"); |
1457 | flag = 1; |
1458 | break; |
1459 | case UNION: |
1460 | str = allocAndCopy("union"); |
1461 | flag = 1; |
1462 | break; |
1463 | default: |
1464 | error_callback(NULL, "named type has no definition"); |
1465 | break; |
1466 | } |
1467 | |
1468 | crc = partial_crc32(str,crc); |
1469 | if(flag) free(str); |
1470 | |
1471 | if(type->fmt) crc = partial_crc32(type->fmt,crc); |
1472 | |
f104d082 |
1473 | if(type->type == ARRAY){ |
1474 | crc = getTypeChecksum(crc,((field_t*)type->fields.array[0])->type); |
1475 | } else if(type->type ==SEQUENCE) { |
1476 | crc = getTypeChecksum(crc,((field_t*)type->fields.array[0])->type); |
1477 | crc = getTypeChecksum(crc,((field_t*)type->fields.array[1])->type); |
1478 | } else if(type->type == STRUCT || type->type == UNION){ |
90395b4b |
1479 | for(pos =0; pos < type->fields.position; pos++){ |
90699b2b |
1480 | fld = (field_t *) type->fields.array[pos]; |
90395b4b |
1481 | crc = partial_crc32(fld->name,crc); |
1482 | crc = getTypeChecksum(crc, fld->type); |
1483 | } |
1484 | }else if(type->type == ENUM){ |
1485 | for(pos = 0; pos < type->labels.position; pos++) |
1486 | crc = partial_crc32((char*)type->labels.array[pos],crc); |
1487 | } |
1488 | |
1489 | return crc; |
1490 | } |
1491 | |
1492 | |
1493 | /* Event type descriptors */ |
90699b2b |
1494 | void freeType(type_descriptor_t * tp) |
90395b4b |
1495 | { |
1496 | int pos2; |
90699b2b |
1497 | field_t *f; |
90395b4b |
1498 | |
1499 | if(tp->fmt != NULL) free(tp->fmt); |
1500 | if(tp->type == ENUM) { |
1501 | for(pos2 = 0; pos2 < tp->labels.position; pos2++) { |
1502 | free(tp->labels.array[pos2]); |
1503 | } |
1504 | sequence_dispose(&(tp->labels)); |
f104d082 |
1505 | for(pos2 = 0; pos2 < tp->labels_values.position; pos2++) { |
1506 | free(tp->labels_values.array[pos2]); |
1507 | } |
1508 | sequence_dispose(&(tp->labels_values)); |
90395b4b |
1509 | } |
1510 | if(tp->type == STRUCT) { |
1511 | for(pos2 = 0; pos2 < tp->fields.position; pos2++) { |
90699b2b |
1512 | f = (field_t *) tp->fields.array[pos2]; |
90395b4b |
1513 | free(f->name); |
1514 | free(f->description); |
1515 | free(f); |
1516 | } |
1517 | sequence_dispose(&(tp->fields)); |
1518 | } |
1519 | } |
1520 | |
90699b2b |
1521 | void freeNamedType(table_t * t) |
90395b4b |
1522 | { |
1523 | int pos; |
90699b2b |
1524 | type_descriptor_t * td; |
90395b4b |
1525 | |
1526 | for(pos = 0 ; pos < t->keys.position; pos++) { |
1527 | free((char *)t->keys.array[pos]); |
90699b2b |
1528 | td = (type_descriptor_t*)t->values.array[pos]; |
90395b4b |
1529 | freeType(td); |
1530 | free(td); |
1531 | } |
1532 | } |
1533 | |
90699b2b |
1534 | void freeTypes(sequence_t *t) |
90395b4b |
1535 | { |
a0c1f622 |
1536 | int pos; |
90699b2b |
1537 | type_descriptor_t *tp; |
90395b4b |
1538 | |
1539 | for(pos = 0 ; pos < t->position; pos++) { |
90699b2b |
1540 | tp = (type_descriptor_t *)t->array[pos]; |
90395b4b |
1541 | freeType(tp); |
1542 | free(tp); |
1543 | } |
1544 | } |
1545 | |
90699b2b |
1546 | void freeEvents(sequence_t *t) |
90395b4b |
1547 | { |
1548 | int pos; |
90699b2b |
1549 | event_t *ev; |
90395b4b |
1550 | |
1551 | for(pos = 0 ; pos < t->position; pos++) { |
90699b2b |
1552 | ev = (event_t *) t->array[pos]; |
90395b4b |
1553 | free(ev->name); |
1554 | free(ev->description); |
f104d082 |
1555 | sequence_dispose(&ev->fields); |
90395b4b |
1556 | free(ev); |
1557 | } |
1558 | |
1559 | } |
1560 | |
1561 | |
1562 | /* Extensible array */ |
1563 | |
90699b2b |
1564 | void sequence_init(sequence_t *t) |
90395b4b |
1565 | { |
1566 | t->size = 10; |
1567 | t->position = 0; |
1568 | t->array = (void **)memAlloc(t->size * sizeof(void *)); |
1569 | } |
1570 | |
90699b2b |
1571 | void sequence_dispose(sequence_t *t) |
90395b4b |
1572 | { |
1573 | t->size = 0; |
1574 | free(t->array); |
1575 | t->array = NULL; |
1576 | } |
1577 | |
90699b2b |
1578 | void sequence_push(sequence_t *t, void *elem) |
90395b4b |
1579 | { |
1580 | void **tmp; |
1581 | |
1582 | if(t->position >= t->size) { |
1583 | tmp = t->array; |
1584 | t->array = (void **)memAlloc(t->size * 2 * sizeof(void *)); |
1585 | memcpy(t->array, tmp, t->size * sizeof(void *)); |
1586 | t->size = t->size * 2; |
1587 | free(tmp); |
1588 | } |
1589 | t->array[t->position] = elem; |
1590 | t->position++; |
1591 | } |
1592 | |
90699b2b |
1593 | void *sequence_pop(sequence_t *t) |
90395b4b |
1594 | { |
845a3be5 |
1595 | if(t->position == 0) printf("Error : trying to pop an empty sequence"); |
1596 | return t->array[--t->position]; |
90395b4b |
1597 | } |
1598 | |
1599 | |
1600 | /* Hash table API, implementation is just linear search for now */ |
1601 | |
90699b2b |
1602 | void table_init(table_t *t) |
90395b4b |
1603 | { |
1604 | sequence_init(&(t->keys)); |
1605 | sequence_init(&(t->values)); |
1606 | } |
1607 | |
90699b2b |
1608 | void table_dispose(table_t *t) |
90395b4b |
1609 | { |
1610 | sequence_dispose(&(t->keys)); |
1611 | sequence_dispose(&(t->values)); |
1612 | } |
1613 | |
90699b2b |
1614 | void table_insert(table_t *t, char *key, void *value) |
90395b4b |
1615 | { |
1616 | sequence_push(&(t->keys),key); |
1617 | sequence_push(&(t->values),value); |
1618 | } |
1619 | |
90699b2b |
1620 | void *table_find(table_t *t, char *key) |
90395b4b |
1621 | { |
1622 | int pos; |
1623 | for(pos = 0 ; pos < t->keys.position; pos++) { |
1624 | if(strcmp((char *)key,(char *)t->keys.array[pos]) == 0) |
1625 | return(t->values.array[pos]); |
1626 | } |
1627 | return NULL; |
1628 | } |
1629 | |
90699b2b |
1630 | void table_insert_int(table_t *t, int *key, void *value) |
90395b4b |
1631 | { |
1632 | sequence_push(&(t->keys),key); |
1633 | sequence_push(&(t->values),value); |
1634 | } |
1635 | |
90699b2b |
1636 | void *table_find_int(table_t *t, int *key) |
90395b4b |
1637 | { |
1638 | int pos; |
1639 | for(pos = 0 ; pos < t->keys.position; pos++) { |
1640 | if(*key == *(int *)t->keys.array[pos]) |
1641 | return(t->values.array[pos]); |
1642 | } |
1643 | return NULL; |
1644 | } |
1645 | |
1646 | |
1647 | /* Concatenate strings */ |
1648 | |
1649 | char *appendString(char *s, char *suffix) |
1650 | { |
1651 | char *tmp; |
1652 | if(suffix == NULL) return s; |
1653 | |
1654 | tmp = (char *)memAlloc(strlen(s) + strlen(suffix) + 1); |
1655 | strcpy(tmp,s); |
1656 | strcat(tmp,suffix); |
1657 | return tmp; |
1658 | } |