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