6cd62ccf |
1 | /* |
2 | |
3 | parser.c: Generate helper declarations and functions to trace events |
4 | from an event description file. |
5 | |
6 | Copyright (C) 2002, Xianxiu Yang |
45e14832 |
7 | Copyright (C) 2002, Michel Dagenais |
8 | Copyright (C) 2005, Mathieu Desnoyers |
9 | |
6cd62ccf |
10 | This program is free software; you can redistribute it and/or modify |
11 | it under the terms of the GNU General Public License as published by |
12 | the Free Software Foundation; version 2 of the License. |
13 | |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
17 | GNU General Public License for more details. |
18 | |
19 | You should have received a copy of the GNU General Public License |
20 | along with this program; if not, write to the Free Software |
21 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
22 | */ |
23 | |
963b5f2d |
24 | /* This program reads the ".xml" event definitions input files |
25 | and constructs structure for each event. |
6cd62ccf |
26 | |
27 | The program uses a very simple tokenizer, called from a hand written |
28 | recursive descent parser to fill a data structure describing the events. |
29 | The result is a sequence of events definitions which refer to type |
30 | definitions. |
31 | |
32 | A table of named types is maintained to allow refering to types by name |
33 | when the same type is used at several places. Finally a sequence of |
34 | all types is maintained to facilitate the freeing of all type |
963b5f2d |
35 | information when the processing of an ".xml" file is finished. */ |
6cd62ccf |
36 | |
4e4d11b3 |
37 | #ifdef HAVE_CONFIG_H |
38 | #include <config.h> |
39 | #endif |
40 | |
6cd62ccf |
41 | #include <stdlib.h> |
42 | #include <string.h> |
43 | #include <stdio.h> |
44 | #include <stdarg.h> |
8d1e6362 |
45 | #include <ctype.h> |
0f7f40c1 |
46 | #include <linux/errno.h> |
47 | #include <glib.h> |
6cd62ccf |
48 | |
49 | |
50 | #include "parser.h" |
51 | |
6cd62ccf |
52 | /***************************************************************************** |
53 | *Function name |
54 | * getSize : translate from string to integer |
55 | *Input params |
56 | * in : input file handle |
57 | *Return values |
58 | * size |
59 | *****************************************************************************/ |
60 | |
61 | int getSize(parse_file *in) |
62 | { |
45e14832 |
63 | gchar *token; |
6cd62ccf |
64 | |
65 | token = getToken(in); |
66 | if(in->type == NUMBER) { |
45e14832 |
67 | if(g_ascii_strcasecmp(token,"1") == 0) return 0; |
68 | else if(g_ascii_strcasecmp(token,"2") == 0) return 1; |
69 | else if(g_ascii_strcasecmp(token,"4") == 0) return 2; |
70 | else if(g_ascii_strcasecmp(token,"8") == 0) return 3; |
6cd62ccf |
71 | } |
72 | else if(in->type == NAME) { |
45e14832 |
73 | if(g_ascii_strcasecmp(token,"short") == 0) return 4; |
74 | else if(g_ascii_strcasecmp(token,"medium") == 0) return 5; |
75 | else if(g_ascii_strcasecmp(token,"long") == 0) return 6; |
6cd62ccf |
76 | } |
77 | in->error(in,"incorrect size specification"); |
78 | return -1; |
79 | } |
80 | |
81 | /***************************************************************************** |
82 | *Function name |
83 | * error_callback : print out error info |
84 | *Input params |
85 | * in : input file handle |
86 | * msg : message to be printed |
87 | ****************************************************************************/ |
88 | |
89 | void error_callback(parse_file *in, char *msg) |
90 | { |
91 | if(in) |
45e14832 |
92 | g_printf("Error in file %s, line %d: %s\n", in->name, in->lineno, msg); |
6cd62ccf |
93 | else |
94 | printf("%s\n",msg); |
6cd62ccf |
95 | } |
96 | |
963b5f2d |
97 | /************************************************************************** |
98 | * Function : |
99 | * getNameAttribute,getFormatAttribute,getSizeAttribute,getValueAttribute |
100 | * getValueStrAttribute |
101 | * Description : |
102 | * Read the attribute from the input file. |
103 | * |
104 | * Parameters : |
105 | * in , input file handle. |
106 | * |
107 | * Return values : |
108 | * address of the attribute. |
109 | * |
110 | **************************************************************************/ |
111 | |
45e14832 |
112 | gchar * getNameAttribute(parse_file *in) |
963b5f2d |
113 | { |
45e14832 |
114 | gchar * token; |
115 | gunichar car; |
116 | GIOStatus status; |
117 | |
963b5f2d |
118 | token = getName(in); |
45e14832 |
119 | if(g_ascii_strcasecmp("name",token))in->error(in,"name was expected"); |
963b5f2d |
120 | getEqual(in); |
121 | |
45e14832 |
122 | status = seekNextChar(in, &car); |
123 | if(status == G_IO_STATUS_EOF || status == G_IO_STATUS_ERROR) |
124 | in->error(in,"name was expected"); |
125 | else if(car == '\"') token = getQuotedString(in); |
963b5f2d |
126 | else token = getName(in); |
127 | return token; |
128 | } |
129 | |
130 | char * getFormatAttribute(parse_file *in) |
131 | { |
132 | char * token; |
133 | |
134 | //format is an option |
135 | token = getToken(in); |
45e14832 |
136 | if(g_ascii_strcasecmp("/",token) == 0 || g_ascii_strcasecmp(">",token) == 0){ |
963b5f2d |
137 | ungetToken(in); |
138 | return NULL; |
139 | } |
140 | |
45e14832 |
141 | if(g_ascii_strcasecmp("format",token))in->error(in,"format was expected"); |
963b5f2d |
142 | getEqual(in); |
143 | token = getQuotedString(in); |
144 | return token; |
145 | } |
146 | |
147 | int getSizeAttribute(parse_file *in) |
148 | { |
8d1e6362 |
149 | /* skip name and equal */ |
963b5f2d |
150 | getName(in); |
151 | getEqual(in); |
152 | |
153 | return getSize(in); |
154 | } |
155 | |
156 | int getValueAttribute(parse_file *in) |
157 | { |
8d1e6362 |
158 | /* skip name and equal */ |
963b5f2d |
159 | getName(in); |
160 | getEqual(in); |
161 | |
162 | return getNumber(in); |
163 | } |
164 | |
165 | //for <label name=label_name value=n/>, value is an option |
166 | char * getValueStrAttribute(parse_file *in) |
167 | { |
168 | char * token; |
169 | |
170 | token = getToken(in); |
45e14832 |
171 | if(g_ascii_strcasecmp("/",token) == 0){ |
963b5f2d |
172 | ungetToken(in); |
173 | return NULL; |
174 | } |
175 | |
45e14832 |
176 | if(g_ascii_strcasecmp("value",token))in->error(in,"value was expected"); |
963b5f2d |
177 | getEqual(in); |
178 | token = getToken(in); |
179 | if(in->type != NUMBER) in->error(in,"number was expected"); |
180 | return token; |
181 | } |
182 | |
183 | char * getDescription(parse_file *in) |
184 | { |
45e14832 |
185 | gint64 pos; |
186 | gchar * token, *str; |
187 | gunichar car; |
188 | GError * error = NULL; |
963b5f2d |
189 | |
45e14832 |
190 | pos = in->pos; |
963b5f2d |
191 | |
192 | getLAnglebracket(in); |
193 | token = getName(in); |
45e14832 |
194 | if(g_ascii_strcasecmp("description",token)){ |
195 | g_io_channel_seek_position(in->channel, pos-(in->pos), G_SEEK_CUR, &error); |
196 | if(error != NULL) { |
197 | g_warning("Can not seek file: \n%s\n", error->message); |
198 | g_error_free(error); |
199 | } else in->pos = pos; |
200 | |
963b5f2d |
201 | return NULL; |
202 | } |
203 | |
204 | getRAnglebracket(in); |
205 | |
206 | pos = 0; |
45e14832 |
207 | while((g_io_channel_read_unichar(in->channel, &car, &error)) |
208 | != G_IO_STATUS_EOF) { |
209 | if(error != NULL) { |
210 | g_warning("Can not seek file: \n%s\n", error->message); |
211 | g_error_free(error); |
212 | } else in->pos++; |
213 | |
963b5f2d |
214 | if(car == '<') break; |
215 | if(car == '\0') continue; |
216 | in->buffer[pos] = car; |
217 | pos++; |
218 | } |
219 | if(car == EOF)in->error(in,"not a valid description"); |
220 | in->buffer[pos] = '\0'; |
221 | |
45e14832 |
222 | str = g_strdup(in->buffer); |
963b5f2d |
223 | |
224 | getForwardslash(in); |
225 | token = getName(in); |
45e14832 |
226 | if(g_ascii_strcasecmp("description", token))in->error(in,"not a valid description"); |
963b5f2d |
227 | getRAnglebracket(in); |
228 | |
229 | return str; |
230 | } |
231 | |
232 | /***************************************************************************** |
233 | *Function name |
234 | * parseFacility : generate event list |
235 | *Input params |
236 | * in : input file handle |
237 | * fac : empty facility |
238 | *Output params |
239 | * fac : facility filled with event list |
240 | ****************************************************************************/ |
241 | |
8d1e6362 |
242 | void parseFacility(parse_file *in, facility_t * fac) |
963b5f2d |
243 | { |
244 | char * token; |
8d1e6362 |
245 | event_t *ev; |
963b5f2d |
246 | |
45e14832 |
247 | fac->name = g_strdup(getNameAttribute(in)); |
963b5f2d |
248 | getRAnglebracket(in); |
249 | |
ed9d56bd |
250 | fac->description = getDescription(in); |
963b5f2d |
251 | |
252 | while(1){ |
253 | getLAnglebracket(in); |
254 | |
255 | token = getToken(in); |
256 | if(in->type == ENDFILE) |
257 | in->error(in,"the definition of the facility is not finished"); |
258 | |
45e14832 |
259 | if(g_ascii_strcasecmp("event",token) == 0){ |
260 | ev = (event_t*) g_new(event_t,1); |
963b5f2d |
261 | sequence_push(&(fac->events),ev); |
262 | parseEvent(in,ev, &(fac->unnamed_types), &(fac->named_types)); |
45e14832 |
263 | }else if(g_ascii_strcasecmp("type",token) == 0){ |
963b5f2d |
264 | parseTypeDefinition(in, &(fac->unnamed_types), &(fac->named_types)); |
265 | }else if(in->type == FORWARDSLASH){ |
266 | break; |
267 | }else in->error(in,"event or type token expected\n"); |
268 | } |
269 | |
270 | token = getName(in); |
45e14832 |
271 | if(g_ascii_strcasecmp("facility",token)) in->error(in,"not the end of the facility"); |
963b5f2d |
272 | getRAnglebracket(in); //</facility> |
273 | } |
6cd62ccf |
274 | |
275 | /***************************************************************************** |
276 | *Function name |
277 | * parseEvent : generate event from event definition |
278 | *Input params |
279 | * in : input file handle |
280 | * ev : new event |
963b5f2d |
281 | * unnamed_types : array of unamed types |
282 | * named_types : array of named types |
6cd62ccf |
283 | *Output params |
284 | * ev : new event (parameters are passed to it) |
285 | ****************************************************************************/ |
286 | |
8d1e6362 |
287 | void parseEvent(parse_file *in, event_t * ev, sequence * unnamed_types, |
6cd62ccf |
288 | table * named_types) |
289 | { |
290 | char *token; |
6cd62ccf |
291 | |
963b5f2d |
292 | //<event name=eventtype_name> |
45e14832 |
293 | ev->name = g_strdup(getNameAttribute(in)); |
963b5f2d |
294 | getRAnglebracket(in); |
6cd62ccf |
295 | |
963b5f2d |
296 | //<description>...</descriptio> |
ed9d56bd |
297 | ev->description = getDescription(in); |
6cd62ccf |
298 | |
963b5f2d |
299 | //event can have STRUCT, TYPEREF or NOTHING |
300 | getLAnglebracket(in); |
6cd62ccf |
301 | |
963b5f2d |
302 | token = getToken(in); |
303 | if(in->type == FORWARDSLASH){ //</event> NOTHING |
304 | ev->type = NULL; |
305 | }else if(in->type == NAME){ |
45e14832 |
306 | if(g_ascii_strcasecmp("struct",token)==0 || g_ascii_strcasecmp("typeref",token)==0){ |
963b5f2d |
307 | ungetToken(in); |
308 | ev->type = parseType(in,NULL, unnamed_types, named_types); |
309 | if(ev->type->type != STRUCT && ev->type->type != NONE) |
310 | in->error(in,"type must be a struct"); |
311 | }else in->error(in, "not a valid type"); |
312 | |
313 | getLAnglebracket(in); |
314 | getForwardslash(in); |
6cd62ccf |
315 | }else in->error(in,"not a struct type"); |
316 | |
963b5f2d |
317 | token = getName(in); |
45e14832 |
318 | if(g_ascii_strcasecmp("event",token))in->error(in,"not an event definition"); |
963b5f2d |
319 | getRAnglebracket(in); //</event> |
6cd62ccf |
320 | } |
321 | |
322 | /***************************************************************************** |
323 | *Function name |
963b5f2d |
324 | * parseField : get field infomation from buffer |
6cd62ccf |
325 | *Input params |
963b5f2d |
326 | * in : input file handle |
327 | * t : type descriptor |
328 | * unnamed_types : array of unamed types |
329 | * named_types : array of named types |
6cd62ccf |
330 | ****************************************************************************/ |
331 | |
332 | void parseFields(parse_file *in, type_descriptor *t, sequence * unnamed_types, |
333 | table * named_types) |
334 | { |
335 | char * token; |
8d1e6362 |
336 | type_fields *f; |
6cd62ccf |
337 | |
45e14832 |
338 | f = g_new(type_fields,1); |
963b5f2d |
339 | sequence_push(&(t->fields),f); |
6cd62ccf |
340 | |
963b5f2d |
341 | //<field name=field_name> <description> <type> </field> |
45e14832 |
342 | f->name = g_strdup(getNameAttribute(in)); |
963b5f2d |
343 | getRAnglebracket(in); |
344 | |
ed9d56bd |
345 | f->description = getDescription(in); |
963b5f2d |
346 | |
347 | //<int size=...> |
348 | getLAnglebracket(in); |
349 | f->type = parseType(in,NULL, unnamed_types, named_types); |
6cd62ccf |
350 | |
963b5f2d |
351 | getLAnglebracket(in); |
352 | getForwardslash(in); |
353 | token = getName(in); |
45e14832 |
354 | if(g_ascii_strcasecmp("field",token))in->error(in,"not a valid field definition"); |
963b5f2d |
355 | getRAnglebracket(in); //</field> |
6cd62ccf |
356 | } |
357 | |
358 | |
359 | /***************************************************************************** |
360 | *Function name |
361 | * parseType : get type information, type can be : |
362 | * Primitive: |
363 | * int(size,fmt); uint(size,fmt); float(size,fmt); |
364 | * string(fmt); enum(size,fmt,(label1,label2...)) |
365 | * Compound: |
366 | * array(arraySize, type); sequence(lengthSize,type) |
367 | * struct(field(name,type,description)...) |
368 | * type name: |
369 | * type(name,type) |
370 | *Input params |
371 | * in : input file handle |
372 | * inType : a type descriptor |
963b5f2d |
373 | * unnamed_types : array of unamed types |
374 | * named_types : array of named types |
6cd62ccf |
375 | *Return values |
376 | * type_descriptor* : a type descriptor |
377 | ****************************************************************************/ |
378 | |
379 | type_descriptor *parseType(parse_file *in, type_descriptor *inType, |
380 | sequence * unnamed_types, table * named_types) |
381 | { |
963b5f2d |
382 | char *token; |
6cd62ccf |
383 | type_descriptor *t; |
384 | |
385 | if(inType == NULL) { |
45e14832 |
386 | t = g_new(type_descriptor,1); |
6cd62ccf |
387 | t->type_name = NULL; |
388 | t->type = NONE; |
389 | t->fmt = NULL; |
390 | sequence_push(unnamed_types,t); |
391 | } |
392 | else t = inType; |
393 | |
394 | token = getName(in); |
395 | |
45e14832 |
396 | if(g_ascii_strcasecmp(token,"struct") == 0) { |
6cd62ccf |
397 | t->type = STRUCT; |
963b5f2d |
398 | getRAnglebracket(in); //<struct> |
399 | getLAnglebracket(in); //<field name=..> |
400 | token = getToken(in); |
401 | sequence_init(&(t->fields)); |
45e14832 |
402 | while(g_ascii_strcasecmp("field",token) == 0){ |
963b5f2d |
403 | parseFields(in,t, unnamed_types, named_types); |
404 | |
405 | //next field |
406 | getLAnglebracket(in); |
407 | token = getToken(in); |
408 | } |
45e14832 |
409 | if(g_ascii_strcasecmp("/",token))in->error(in,"not a valid structure definition"); |
963b5f2d |
410 | token = getName(in); |
45e14832 |
411 | if(g_ascii_strcasecmp("struct",token)!=0) |
963b5f2d |
412 | in->error(in,"not a valid structure definition"); |
413 | getRAnglebracket(in); //</struct> |
414 | } |
45e14832 |
415 | else if(g_ascii_strcasecmp(token,"union") == 0) { |
963b5f2d |
416 | t->type = UNION; |
417 | t->size = getSizeAttribute(in); |
418 | getRAnglebracket(in); //<union typecodesize=isize> |
419 | |
420 | getLAnglebracket(in); //<field name=..> |
421 | token = getToken(in); |
422 | sequence_init(&(t->fields)); |
45e14832 |
423 | while(g_ascii_strcasecmp("field",token) == 0){ |
963b5f2d |
424 | parseFields(in,t, unnamed_types, named_types); |
425 | |
426 | //next field |
427 | getLAnglebracket(in); |
428 | token = getToken(in); |
429 | } |
45e14832 |
430 | if(g_ascii_strcasecmp("/",token))in->error(in,"not a valid union definition"); |
963b5f2d |
431 | token = getName(in); |
45e14832 |
432 | if(g_ascii_strcasecmp("union",token)!=0) |
963b5f2d |
433 | in->error(in,"not a valid union definition"); |
434 | getRAnglebracket(in); //</union> |
6cd62ccf |
435 | } |
45e14832 |
436 | else if(g_ascii_strcasecmp(token,"array") == 0) { |
6cd62ccf |
437 | t->type = ARRAY; |
963b5f2d |
438 | t->size = getValueAttribute(in); |
439 | getRAnglebracket(in); //<array size=n> |
440 | |
441 | getLAnglebracket(in); //<type struct> |
6cd62ccf |
442 | t->nested_type = parseType(in,NULL, unnamed_types, named_types); |
963b5f2d |
443 | |
444 | getLAnglebracket(in); //</array> |
445 | getForwardslash(in); |
446 | token = getName(in); |
45e14832 |
447 | if(g_ascii_strcasecmp("array",token))in->error(in,"not a valid array definition"); |
963b5f2d |
448 | getRAnglebracket(in); //</array> |
6cd62ccf |
449 | } |
45e14832 |
450 | else if(g_ascii_strcasecmp(token,"sequence") == 0) { |
6cd62ccf |
451 | t->type = SEQUENCE; |
963b5f2d |
452 | t->size = getSizeAttribute(in); |
453 | getRAnglebracket(in); //<array lengthsize=isize> |
454 | |
455 | getLAnglebracket(in); //<type struct> |
6cd62ccf |
456 | t->nested_type = parseType(in,NULL, unnamed_types, named_types); |
963b5f2d |
457 | |
458 | getLAnglebracket(in); //</sequence> |
459 | getForwardslash(in); |
460 | token = getName(in); |
45e14832 |
461 | if(g_ascii_strcasecmp("sequence",token))in->error(in,"not a valid sequence definition"); |
963b5f2d |
462 | getRAnglebracket(in); //</sequence> |
6cd62ccf |
463 | } |
45e14832 |
464 | else if(g_ascii_strcasecmp(token,"enum") == 0) { |
963b5f2d |
465 | char * str, *str1; |
6cd62ccf |
466 | t->type = ENUM; |
467 | sequence_init(&(t->labels)); |
963b5f2d |
468 | t->size = getSizeAttribute(in); |
45e14832 |
469 | t->fmt = g_strdup(getFormatAttribute(in)); |
963b5f2d |
470 | getRAnglebracket(in); |
471 | |
472 | //<label name=label1 value=n/> |
473 | getLAnglebracket(in); |
474 | token = getToken(in); //"label" or "/" |
45e14832 |
475 | while(g_ascii_strcasecmp("label",token) == 0){ |
476 | str1 = g_strdup(getNameAttribute(in)); |
963b5f2d |
477 | token = getValueStrAttribute(in); |
478 | if(token){ |
45e14832 |
479 | str = g_strconcat(str1,"=",token,NULL); |
480 | g_free(str1); |
481 | sequence_push(&(t->labels),str); |
963b5f2d |
482 | }else |
45e14832 |
483 | sequence_push(&(t->labels),str1); |
963b5f2d |
484 | |
485 | getForwardslash(in); |
486 | getRAnglebracket(in); |
487 | |
488 | //next label definition |
489 | getLAnglebracket(in); |
490 | token = getToken(in); //"label" or "/" |
491 | } |
45e14832 |
492 | if(g_ascii_strcasecmp("/",token))in->error(in, "not a valid enum definition"); |
963b5f2d |
493 | token = getName(in); |
45e14832 |
494 | if(g_ascii_strcasecmp("enum",token))in->error(in, "not a valid enum definition"); |
963b5f2d |
495 | getRAnglebracket(in); //</label> |
6cd62ccf |
496 | } |
45e14832 |
497 | else if(g_ascii_strcasecmp(token,"int") == 0) { |
6cd62ccf |
498 | t->type = INT; |
963b5f2d |
499 | t->size = getSizeAttribute(in); |
45e14832 |
500 | t->fmt = g_strdup(getFormatAttribute(in)); |
963b5f2d |
501 | getForwardslash(in); |
502 | getRAnglebracket(in); |
6cd62ccf |
503 | } |
45e14832 |
504 | else if(g_ascii_strcasecmp(token,"uint") == 0) { |
6cd62ccf |
505 | t->type = UINT; |
963b5f2d |
506 | t->size = getSizeAttribute(in); |
45e14832 |
507 | t->fmt = g_strdup(getFormatAttribute(in)); |
963b5f2d |
508 | getForwardslash(in); |
509 | getRAnglebracket(in); |
6cd62ccf |
510 | } |
45e14832 |
511 | else if(g_ascii_strcasecmp(token,"float") == 0) { |
6cd62ccf |
512 | t->type = FLOAT; |
963b5f2d |
513 | t->size = getSizeAttribute(in); |
45e14832 |
514 | t->fmt = g_strdup(getFormatAttribute(in)); |
963b5f2d |
515 | getForwardslash(in); |
516 | getRAnglebracket(in); |
6cd62ccf |
517 | } |
45e14832 |
518 | else if(g_ascii_strcasecmp(token,"string") == 0) { |
6cd62ccf |
519 | t->type = STRING; |
45e14832 |
520 | t->fmt = g_strdup(getFormatAttribute(in)); |
963b5f2d |
521 | getForwardslash(in); |
522 | getRAnglebracket(in); |
6cd62ccf |
523 | } |
45e14832 |
524 | else if(g_ascii_strcasecmp(token,"typeref") == 0){ |
963b5f2d |
525 | // Must be a named type |
6cd62ccf |
526 | if(inType != NULL) |
527 | in->error(in,"Named type cannot refer to a named type"); |
528 | else { |
45e14832 |
529 | g_free(t); |
6cd62ccf |
530 | sequence_pop(unnamed_types); |
963b5f2d |
531 | token = getNameAttribute(in); |
532 | t = find_named_type(token, named_types); |
533 | getForwardslash(in); //<typeref name=type_name/> |
534 | getRAnglebracket(in); |
535 | return t; |
6cd62ccf |
536 | } |
963b5f2d |
537 | }else in->error(in,"not a valid type"); |
6cd62ccf |
538 | |
539 | return t; |
540 | } |
541 | |
542 | /***************************************************************************** |
543 | *Function name |
544 | * find_named_type : find a named type from hash table |
545 | *Input params |
546 | * name : type name |
963b5f2d |
547 | * named_types : array of named types |
6cd62ccf |
548 | *Return values |
549 | * type_descriptor * : a type descriptor |
550 | *****************************************************************************/ |
551 | |
45e14832 |
552 | type_descriptor * find_named_type(gchar *name, table * named_types) |
6cd62ccf |
553 | { |
554 | type_descriptor *t; |
555 | |
556 | t = table_find(named_types,name); |
557 | if(t == NULL) { |
45e14832 |
558 | t = g_new(type_descriptor,1); |
559 | t->type_name = g_strdup(name); |
6cd62ccf |
560 | t->type = NONE; |
561 | t->fmt = NULL; |
908f42fa |
562 | table_insert(named_types,t->type_name,t); |
45e14832 |
563 | // table_insert(named_types,g_strdup(name),t); |
6cd62ccf |
564 | } |
565 | return t; |
566 | } |
567 | |
568 | /***************************************************************************** |
569 | *Function name |
570 | * parseTypeDefinition : get type information from type definition |
571 | *Input params |
572 | * in : input file handle |
963b5f2d |
573 | * unnamed_types : array of unamed types |
574 | * named_types : array of named types |
6cd62ccf |
575 | *****************************************************************************/ |
576 | |
577 | void parseTypeDefinition(parse_file * in, sequence * unnamed_types, |
578 | table * named_types) |
579 | { |
580 | char *token; |
581 | type_descriptor *t; |
582 | |
963b5f2d |
583 | token = getNameAttribute(in); |
6cd62ccf |
584 | t = find_named_type(token, named_types); |
6cd62ccf |
585 | |
586 | if(t->type != NONE) in->error(in,"redefinition of named type"); |
963b5f2d |
587 | getRAnglebracket(in); //<type name=type_name> |
588 | getLAnglebracket(in); //<struct> |
589 | token = getName(in); |
45e14832 |
590 | if(g_ascii_strcasecmp("struct",token))in->error(in,"not a valid type definition"); |
963b5f2d |
591 | ungetToken(in); |
6cd62ccf |
592 | parseType(in,t, unnamed_types, named_types); |
963b5f2d |
593 | |
594 | //</type> |
595 | getLAnglebracket(in); |
596 | getForwardslash(in); |
597 | token = getName(in); |
45e14832 |
598 | if(g_ascii_strcasecmp("type",token))in->error(in,"not a valid type definition"); |
963b5f2d |
599 | getRAnglebracket(in); //</type> |
6cd62ccf |
600 | } |
601 | |
602 | /************************************************************************** |
603 | * Function : |
963b5f2d |
604 | * getComa, getName, getNumber, getEqual |
6cd62ccf |
605 | * Description : |
606 | * Read a token from the input file, check its type, return it scontent. |
607 | * |
608 | * Parameters : |
609 | * in , input file handle. |
610 | * |
611 | * Return values : |
612 | * address of token content. |
613 | * |
614 | **************************************************************************/ |
615 | |
616 | char *getName(parse_file * in) |
617 | { |
618 | char *token; |
619 | |
620 | token = getToken(in); |
621 | if(in->type != NAME) in->error(in,"Name token was expected"); |
622 | return token; |
623 | } |
624 | |
625 | int getNumber(parse_file * in) |
626 | { |
627 | char *token; |
628 | |
629 | token = getToken(in); |
630 | if(in->type != NUMBER) in->error(in, "Number token was expected"); |
631 | return atoi(token); |
632 | } |
633 | |
963b5f2d |
634 | char *getForwardslash(parse_file * in) |
6cd62ccf |
635 | { |
636 | char *token; |
637 | |
638 | token = getToken(in); |
963b5f2d |
639 | if(in->type != FORWARDSLASH) in->error(in, "forward slash token was expected"); |
6cd62ccf |
640 | return token; |
641 | } |
642 | |
963b5f2d |
643 | char *getLAnglebracket(parse_file * in) |
6cd62ccf |
644 | { |
645 | char *token; |
646 | |
647 | token = getToken(in); |
963b5f2d |
648 | if(in->type != LANGLEBRACKET) in->error(in, "Left angle bracket was expected"); |
6cd62ccf |
649 | return token; |
650 | } |
651 | |
963b5f2d |
652 | char *getRAnglebracket(parse_file * in) |
6cd62ccf |
653 | { |
654 | char *token; |
655 | |
656 | token = getToken(in); |
963b5f2d |
657 | if(in->type != RANGLEBRACKET) in->error(in, "Right angle bracket was expected"); |
6cd62ccf |
658 | return token; |
659 | } |
660 | |
661 | char *getQuotedString(parse_file * in) |
662 | { |
663 | char *token; |
664 | |
665 | token = getToken(in); |
666 | if(in->type != QUOTEDSTRING) in->error(in, "quoted string was expected"); |
667 | return token; |
668 | } |
669 | |
963b5f2d |
670 | char * getEqual(parse_file *in) |
6cd62ccf |
671 | { |
672 | char *token; |
673 | |
674 | token = getToken(in); |
963b5f2d |
675 | if(in->type != EQUAL) in->error(in, "equal was expected"); |
6cd62ccf |
676 | return token; |
677 | } |
678 | |
45e14832 |
679 | gunichar seekNextChar(parse_file *in, gunichar *car) |
6cd62ccf |
680 | { |
45e14832 |
681 | GError * error = NULL; |
682 | GIOStatus status; |
683 | |
684 | do { |
685 | |
686 | status = g_io_channel_read_unichar(in->channel, car, &error); |
687 | |
688 | if(error != NULL) { |
689 | g_warning("Can not read file: \n%s\n", error->message); |
690 | g_error_free(error); |
691 | break; |
692 | } |
693 | in->pos++; |
694 | |
695 | if(!g_unichar_isspace(*car)) { |
696 | g_io_channel_seek_position(in->channel, -1, G_SEEK_CUR, &error); |
697 | if(error != NULL) { |
698 | g_warning("Can not seek file: \n%s\n", error->message); |
699 | g_error_free(error); |
700 | } |
701 | in->pos--; |
702 | break; |
963b5f2d |
703 | } |
45e14832 |
704 | |
705 | } while(status != G_IO_STATUS_EOF && status != G_IO_STATUS_ERROR); |
706 | |
707 | return status; |
6cd62ccf |
708 | } |
709 | |
45e14832 |
710 | |
6cd62ccf |
711 | /****************************************************************** |
712 | * Function : |
713 | * getToken, ungetToken |
714 | * Description : |
715 | * Read a token from the input file and return its type and content. |
716 | * Line numbers are accounted for and whitespace/comments are skipped. |
717 | * |
718 | * Parameters : |
719 | * in, input file handle. |
720 | * |
721 | * Return values : |
722 | * address of token content. |
723 | * |
724 | ******************************************************************/ |
725 | |
726 | void ungetToken(parse_file * in) |
727 | { |
728 | in->unget = 1; |
729 | } |
730 | |
45e14832 |
731 | gchar *getToken(parse_file * in) |
6cd62ccf |
732 | { |
45e14832 |
733 | gunichar car, car1; |
6cd62ccf |
734 | int pos = 0, escaped; |
45e14832 |
735 | GError * error = NULL; |
6cd62ccf |
736 | |
737 | if(in->unget == 1) { |
738 | in->unget = 0; |
739 | return in->buffer; |
740 | } |
741 | |
742 | /* skip whitespace and comments */ |
743 | |
45e14832 |
744 | while((g_io_channel_read_unichar(in->channel, &car, &error)) |
745 | != G_IO_STATUS_EOF) { |
746 | |
747 | if(error != NULL) { |
748 | g_warning("Can not read file: \n%s\n", error->message); |
749 | g_error_free(error); |
750 | } else in->pos++; |
751 | |
6cd62ccf |
752 | if(car == '/') { |
45e14832 |
753 | g_io_channel_read_unichar(in->channel, &car1, &error); |
754 | if(error != NULL) { |
755 | g_warning("Can not read file: \n%s\n", error->message); |
756 | g_error_free(error); |
757 | } else in->pos++; |
758 | |
6cd62ccf |
759 | if(car1 == '*') skipComment(in); |
760 | else if(car1 == '/') skipEOL(in); |
45e14832 |
761 | else { |
762 | g_io_channel_seek_position(in->channel, -1, G_SEEK_CUR, &error); |
763 | if(error != NULL) { |
764 | g_warning("Can not seek file: \n%s\n", error->message); |
765 | g_error_free(error); |
766 | } else in->pos--; |
6cd62ccf |
767 | break; |
768 | } |
769 | } |
770 | else if(car == '\n') in->lineno++; |
45e14832 |
771 | else if(!g_unichar_isspace(car)) break; |
6cd62ccf |
772 | } |
6cd62ccf |
773 | switch(car) { |
774 | case EOF: |
775 | in->type = ENDFILE; |
776 | break; |
963b5f2d |
777 | case '/': |
778 | in->type = FORWARDSLASH; |
6cd62ccf |
779 | in->buffer[pos] = car; |
780 | pos++; |
781 | break; |
963b5f2d |
782 | case '<': |
783 | in->type = LANGLEBRACKET; |
6cd62ccf |
784 | in->buffer[pos] = car; |
785 | pos++; |
786 | break; |
963b5f2d |
787 | case '>': |
788 | in->type = RANGLEBRACKET; |
6cd62ccf |
789 | in->buffer[pos] = car; |
790 | pos++; |
791 | break; |
792 | case '=': |
793 | in->type = EQUAL; |
794 | in->buffer[pos] = car; |
795 | pos++; |
796 | break; |
797 | case '"': |
798 | escaped = 0; |
45e14832 |
799 | while(g_io_channel_read_unichar(in->channel, &car, &error) |
800 | != G_IO_STATUS_EOF && pos < BUFFER_SIZE) { |
801 | |
802 | if(error != NULL) { |
803 | g_warning("Can not read file: \n%s\n", error->message); |
804 | g_error_free(error); |
805 | } else in->pos++; |
806 | |
6cd62ccf |
807 | if(car == '\\' && escaped == 0) { |
45e14832 |
808 | in->buffer[pos] = car; |
809 | pos++; |
6cd62ccf |
810 | escaped = 1; |
811 | continue; |
812 | } |
813 | if(car == '"' && escaped == 0) break; |
814 | if(car == '\n' && escaped == 0) { |
815 | in->error(in, "non escaped newline inside quoted string"); |
816 | } |
817 | if(car == '\n') in->lineno++; |
818 | in->buffer[pos] = car; |
819 | pos++; |
820 | escaped = 0; |
821 | } |
822 | if(car == EOF) in->error(in,"no ending quotemark"); |
823 | if(pos == BUFFER_SIZE) in->error(in, "quoted string token too large"); |
824 | in->type = QUOTEDSTRING; |
825 | break; |
826 | default: |
45e14832 |
827 | if(g_unichar_isdigit(car)) { |
6cd62ccf |
828 | in->buffer[pos] = car; |
829 | pos++; |
45e14832 |
830 | while(g_io_channel_read_unichar(in->channel, &car, &error) |
831 | != G_IO_STATUS_EOF && pos < BUFFER_SIZE) { |
832 | |
833 | if(error != NULL) { |
834 | g_warning("Can not read file: \n%s\n", error->message); |
835 | g_error_free(error); |
836 | } else in->pos++; |
837 | |
6cd62ccf |
838 | if(!isdigit(car)) { |
45e14832 |
839 | g_io_channel_seek_position(in->channel, -1, G_SEEK_CUR, &error); |
840 | if(error != NULL) { |
841 | g_warning("Can not seek file: \n%s\n", error->message); |
842 | g_error_free(error); |
843 | } else in->pos--; |
6cd62ccf |
844 | break; |
845 | } |
846 | in->buffer[pos] = car; |
847 | pos++; |
848 | } |
45e14832 |
849 | if(car == EOF) { |
850 | g_io_channel_seek_position(in->channel, -1, G_SEEK_CUR, &error); |
851 | if(error != NULL) { |
852 | g_warning("Can not seek file: \n%s\n", error->message); |
853 | g_error_free(error); |
854 | } else in->pos--; |
855 | } |
6cd62ccf |
856 | if(pos == BUFFER_SIZE) in->error(in, "number token too large"); |
857 | in->type = NUMBER; |
858 | } |
45e14832 |
859 | else if(g_unichar_isalpha(car)) { |
6cd62ccf |
860 | in->buffer[0] = car; |
861 | pos = 1; |
45e14832 |
862 | while(g_io_channel_read_unichar(in->channel, &car, &error) |
863 | != G_IO_STATUS_EOF && pos < BUFFER_SIZE) { |
864 | |
865 | if(error != NULL) { |
866 | g_warning("Can not read file: \n%s\n", error->message); |
867 | g_error_free(error); |
868 | } else in->pos++; |
869 | |
870 | if(!(g_unichar_isalnum(car) || car == '_')) { |
871 | g_io_channel_seek_position(in->channel, -1, G_SEEK_CUR, &error); |
872 | if(error != NULL) { |
873 | g_warning("Can not seek file: \n%s\n", error->message); |
874 | g_error_free(error); |
875 | } else in->pos--; |
6cd62ccf |
876 | break; |
877 | } |
878 | in->buffer[pos] = car; |
879 | pos++; |
880 | } |
45e14832 |
881 | if(car == EOF) { |
882 | g_io_channel_seek_position(in->channel, -1, G_SEEK_CUR, &error); |
883 | if(error != NULL) { |
884 | g_warning("Can not seek file: \n%s\n", error->message); |
885 | g_error_free(error); |
886 | } else in->pos--; |
887 | } |
6cd62ccf |
888 | if(pos == BUFFER_SIZE) in->error(in, "name token too large"); |
889 | in->type = NAME; |
890 | } |
891 | else in->error(in, "invalid character, unrecognized token"); |
892 | } |
893 | in->buffer[pos] = 0; |
894 | return in->buffer; |
895 | } |
896 | |
897 | void skipComment(parse_file * in) |
898 | { |
45e14832 |
899 | gunichar car; |
900 | GError * error = NULL; |
901 | |
902 | while(g_io_channel_read_unichar(in->channel, &car, &error) |
903 | != G_IO_STATUS_EOF) { |
904 | |
905 | if(error != NULL) { |
906 | g_warning("Can not read file: \n%s\n", error->message); |
907 | g_error_free(error); |
908 | } else in->pos++; |
909 | |
6cd62ccf |
910 | if(car == '\n') in->lineno++; |
911 | else if(car == '*') { |
45e14832 |
912 | |
913 | g_io_channel_read_unichar(in->channel, &car, &error); |
914 | if(error != NULL) { |
915 | g_warning("Can not read file: \n%s\n", error->message); |
916 | g_error_free(error); |
917 | } else in->pos++; |
918 | |
6cd62ccf |
919 | if(car ==EOF) break; |
920 | if(car == '/') return; |
45e14832 |
921 | |
922 | g_io_channel_seek_position(in->channel, -1, G_SEEK_CUR, &error); |
923 | if(error != NULL) { |
924 | g_warning("Can not seek file: \n%s\n", error->message); |
925 | g_error_free(error); |
926 | } else in->pos--; |
927 | |
6cd62ccf |
928 | } |
929 | } |
930 | if(car == EOF) in->error(in,"comment begining with '/*' has no ending '*/'"); |
931 | } |
932 | |
933 | void skipEOL(parse_file * in) |
934 | { |
45e14832 |
935 | gunichar car; |
936 | GError * error = NULL; |
937 | |
938 | while(g_io_channel_read_unichar(in->channel, &car, &error) |
939 | != G_IO_STATUS_EOF) { |
6cd62ccf |
940 | if(car == '\n') { |
45e14832 |
941 | g_io_channel_seek_position(in->channel, -1, G_SEEK_CUR, &error); |
942 | if(error != NULL) { |
943 | g_warning("Can not seek file: \n%s\n", error->message); |
944 | g_error_free(error); |
945 | } else in->pos--; |
6cd62ccf |
946 | break; |
947 | } |
948 | } |
45e14832 |
949 | if(car == EOF) { |
950 | g_io_channel_seek_position(in->channel, -1, G_SEEK_CUR, &error); |
951 | if(error != NULL) { |
952 | g_warning("Can not seek file: \n%s\n", error->message); |
953 | g_error_free(error); |
954 | } else in->pos--; |
955 | } |
6cd62ccf |
956 | } |
957 | |
6cd62ccf |
958 | /***************************************************************************** |
959 | *Function name |
960 | * checkNamedTypesImplemented : check if all named types have definition |
fc063e40 |
961 | * returns -1 on error, 0 if ok |
6cd62ccf |
962 | ****************************************************************************/ |
963 | |
fc063e40 |
964 | int checkNamedTypesImplemented(table * named_types) |
6cd62ccf |
965 | { |
966 | type_descriptor *t; |
967 | int pos; |
968 | char str[256]; |
969 | |
970 | for(pos = 0 ; pos < named_types->values.position; pos++) { |
971 | t = (type_descriptor *) named_types->values.array[pos]; |
972 | if(t->type == NONE){ |
fc063e40 |
973 | sprintf(str,"named type '%s' has no definition", |
974 | (char*)named_types->keys.array[pos]); |
975 | error_callback(NULL,str); |
976 | return -1; |
6cd62ccf |
977 | } |
978 | } |
fc063e40 |
979 | return 0; |
6cd62ccf |
980 | } |
981 | |
982 | |
983 | /***************************************************************************** |
984 | *Function name |
985 | * generateChecksum : generate checksum for the facility |
986 | *Input Params |
987 | * facName : name of facility |
988 | *Output Params |
989 | * checksum : checksum for the facility |
990 | ****************************************************************************/ |
991 | |
0f7f40c1 |
992 | int generateChecksum(char* facName, guint32 * checksum, sequence * events) |
6cd62ccf |
993 | { |
994 | unsigned long crc ; |
963b5f2d |
995 | int pos; |
8d1e6362 |
996 | event_t * ev; |
6cd62ccf |
997 | char str[256]; |
998 | |
999 | crc = crc32(facName); |
1000 | for(pos = 0; pos < events->position; pos++){ |
8d1e6362 |
1001 | ev = (event_t *)(events->array[pos]); |
6cd62ccf |
1002 | crc = partial_crc32(ev->name,crc); |
963b5f2d |
1003 | if(!ev->type) continue; //event without type |
6cd62ccf |
1004 | if(ev->type->type != STRUCT){ |
1005 | sprintf(str,"event '%s' has a type other than STRUCT",ev->name); |
1006 | error_callback(NULL, str); |
fc063e40 |
1007 | return -1; |
6cd62ccf |
1008 | } |
963b5f2d |
1009 | crc = getTypeChecksum(crc, ev->type); |
6cd62ccf |
1010 | } |
1011 | *checksum = crc; |
fc063e40 |
1012 | return 0; |
6cd62ccf |
1013 | } |
1014 | |
1015 | /***************************************************************************** |
1016 | *Function name |
1017 | * getTypeChecksum : generate checksum by type info |
1018 | *Input Params |
1019 | * crc : checksum generated so far |
1020 | * type : type descriptor containing type info |
1021 | *Return value |
1022 | * unsigned long : checksum |
1023 | *****************************************************************************/ |
1024 | |
963b5f2d |
1025 | unsigned long getTypeChecksum(unsigned long aCrc, type_descriptor * type) |
6cd62ccf |
1026 | { |
1027 | unsigned long crc = aCrc; |
1028 | char * str = NULL, buf[16]; |
963b5f2d |
1029 | int flag = 0, pos; |
8d1e6362 |
1030 | type_fields * fld; |
6cd62ccf |
1031 | |
1032 | switch(type->type){ |
1033 | case INT: |
1034 | str = intOutputTypes[type->size]; |
1035 | break; |
1036 | case UINT: |
1037 | str = uintOutputTypes[type->size]; |
1038 | break; |
1039 | case FLOAT: |
1040 | str = floatOutputTypes[type->size]; |
1041 | break; |
1042 | case STRING: |
45e14832 |
1043 | str = g_strdup("string"); |
6cd62ccf |
1044 | flag = 1; |
1045 | break; |
1046 | case ENUM: |
45e14832 |
1047 | str = g_strconcat("enum ", uintOutputTypes[type->size], NULL); |
6cd62ccf |
1048 | flag = 1; |
1049 | break; |
1050 | case ARRAY: |
8d1e6362 |
1051 | sprintf(buf,"%d",type->size); |
45e14832 |
1052 | str = g_strconcat("array ",buf, NULL); |
6cd62ccf |
1053 | flag = 1; |
1054 | break; |
1055 | case SEQUENCE: |
8d1e6362 |
1056 | sprintf(buf,"%d",type->size); |
45e14832 |
1057 | str = g_strconcat("sequence ",buf, NULL); |
6cd62ccf |
1058 | flag = 1; |
1059 | break; |
1060 | case STRUCT: |
45e14832 |
1061 | str = g_strdup("struct"); |
6cd62ccf |
1062 | flag = 1; |
1063 | break; |
963b5f2d |
1064 | case UNION: |
45e14832 |
1065 | str = g_strdup("union"); |
963b5f2d |
1066 | flag = 1; |
1067 | break; |
6cd62ccf |
1068 | default: |
1069 | error_callback(NULL, "named type has no definition"); |
1070 | break; |
1071 | } |
1072 | |
1073 | crc = partial_crc32(str,crc); |
45e14832 |
1074 | if(flag) g_free(str); |
6cd62ccf |
1075 | |
1076 | if(type->fmt) crc = partial_crc32(type->fmt,crc); |
1077 | |
1078 | if(type->type == ARRAY || type->type == SEQUENCE){ |
963b5f2d |
1079 | crc = getTypeChecksum(crc,type->nested_type); |
1080 | }else if(type->type == STRUCT || type->type == UNION){ |
1081 | for(pos =0; pos < type->fields.position; pos++){ |
8d1e6362 |
1082 | fld = (type_fields *) type->fields.array[pos]; |
963b5f2d |
1083 | crc = partial_crc32(fld->name,crc); |
1084 | crc = getTypeChecksum(crc, fld->type); |
1085 | } |
6cd62ccf |
1086 | }else if(type->type == ENUM){ |
1087 | for(pos = 0; pos < type->labels.position; pos++) |
963b5f2d |
1088 | crc = partial_crc32((char*)type->labels.array[pos],crc); |
6cd62ccf |
1089 | } |
1090 | |
1091 | return crc; |
1092 | } |
1093 | |
1094 | |
1095 | /* Event type descriptors */ |
1096 | void freeType(type_descriptor * tp) |
1097 | { |
1098 | int pos2; |
8d1e6362 |
1099 | type_fields *f; |
6cd62ccf |
1100 | |
45e14832 |
1101 | if(tp->fmt != NULL) g_free(tp->fmt); |
6cd62ccf |
1102 | if(tp->type == ENUM) { |
1103 | for(pos2 = 0; pos2 < tp->labels.position; pos2++) { |
45e14832 |
1104 | g_free(tp->labels.array[pos2]); |
6cd62ccf |
1105 | } |
1106 | sequence_dispose(&(tp->labels)); |
1107 | } |
1108 | if(tp->type == STRUCT) { |
1109 | for(pos2 = 0; pos2 < tp->fields.position; pos2++) { |
8d1e6362 |
1110 | f = (type_fields *) tp->fields.array[pos2]; |
45e14832 |
1111 | g_free(f->name); |
1112 | g_free(f->description); |
1113 | g_free(f); |
6cd62ccf |
1114 | } |
1115 | sequence_dispose(&(tp->fields)); |
1116 | } |
1117 | } |
1118 | |
1119 | void freeNamedType(table * t) |
1120 | { |
1121 | int pos; |
1122 | type_descriptor * td; |
1123 | |
1124 | for(pos = 0 ; pos < t->keys.position; pos++) { |
45e14832 |
1125 | g_free((char *)t->keys.array[pos]); |
6cd62ccf |
1126 | td = (type_descriptor*)t->values.array[pos]; |
1127 | freeType(td); |
45e14832 |
1128 | g_free(td); |
6cd62ccf |
1129 | } |
1130 | } |
1131 | |
1132 | void freeTypes(sequence *t) |
1133 | { |
8d1e6362 |
1134 | int pos; |
6cd62ccf |
1135 | type_descriptor *tp; |
6cd62ccf |
1136 | |
1137 | for(pos = 0 ; pos < t->position; pos++) { |
1138 | tp = (type_descriptor *)t->array[pos]; |
1139 | freeType(tp); |
45e14832 |
1140 | g_free(tp); |
6cd62ccf |
1141 | } |
1142 | } |
1143 | |
1144 | void freeEvents(sequence *t) |
1145 | { |
1146 | int pos; |
8d1e6362 |
1147 | event_t *ev; |
6cd62ccf |
1148 | |
1149 | for(pos = 0 ; pos < t->position; pos++) { |
8d1e6362 |
1150 | ev = (event_t *) t->array[pos]; |
45e14832 |
1151 | g_free(ev->name); |
1152 | g_free(ev->description); |
1153 | g_free(ev); |
6cd62ccf |
1154 | } |
1155 | |
1156 | } |
1157 | |
1158 | |
1159 | /* Extensible array */ |
1160 | |
1161 | void sequence_init(sequence *t) |
1162 | { |
1163 | t->size = 10; |
1164 | t->position = 0; |
45e14832 |
1165 | t->array = g_new(void*, t->size); |
6cd62ccf |
1166 | } |
1167 | |
1168 | void sequence_dispose(sequence *t) |
1169 | { |
1170 | t->size = 0; |
45e14832 |
1171 | g_free(t->array); |
6cd62ccf |
1172 | t->array = NULL; |
1173 | } |
1174 | |
1175 | void sequence_push(sequence *t, void *elem) |
1176 | { |
1177 | void **tmp; |
1178 | |
1179 | if(t->position >= t->size) { |
1180 | tmp = t->array; |
45e14832 |
1181 | t->array = g_new(void*, 2*t->size); |
6cd62ccf |
1182 | memcpy(t->array, tmp, t->size * sizeof(void *)); |
1183 | t->size = t->size * 2; |
45e14832 |
1184 | g_free(tmp); |
6cd62ccf |
1185 | } |
1186 | t->array[t->position] = elem; |
1187 | t->position++; |
1188 | } |
1189 | |
1190 | void *sequence_pop(sequence *t) |
1191 | { |
1192 | return t->array[t->position--]; |
1193 | } |
1194 | |
1195 | |
1196 | /* Hash table API, implementation is just linear search for now */ |
1197 | |
1198 | void table_init(table *t) |
1199 | { |
1200 | sequence_init(&(t->keys)); |
1201 | sequence_init(&(t->values)); |
1202 | } |
1203 | |
1204 | void table_dispose(table *t) |
1205 | { |
1206 | sequence_dispose(&(t->keys)); |
1207 | sequence_dispose(&(t->values)); |
1208 | } |
1209 | |
1210 | void table_insert(table *t, char *key, void *value) |
1211 | { |
1212 | sequence_push(&(t->keys),key); |
1213 | sequence_push(&(t->values),value); |
1214 | } |
1215 | |
1216 | void *table_find(table *t, char *key) |
1217 | { |
1218 | int pos; |
1219 | for(pos = 0 ; pos < t->keys.position; pos++) { |
45e14832 |
1220 | if(g_ascii_strcasecmp((char *)key,(char *)t->keys.array[pos]) == 0) |
6cd62ccf |
1221 | return(t->values.array[pos]); |
1222 | } |
1223 | return NULL; |
1224 | } |
1225 | |
1226 | void table_insert_int(table *t, int *key, void *value) |
1227 | { |
1228 | sequence_push(&(t->keys),key); |
1229 | sequence_push(&(t->values),value); |
1230 | } |
1231 | |
1232 | void *table_find_int(table *t, int *key) |
1233 | { |
1234 | int pos; |
1235 | for(pos = 0 ; pos < t->keys.position; pos++) { |
1236 | if(*key == *(int *)t->keys.array[pos]) |
1237 | return(t->values.array[pos]); |
1238 | } |
1239 | return NULL; |
1240 | } |
1241 | |
1242 | |