451ab91e |
1 | /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * |
2 | * Mupen64plus-core - api/config.c * |
3 | * Mupen64Plus homepage: http://code.google.com/p/mupen64plus/ * |
4 | * Copyright (C) 2009 Richard Goedeken * |
5 | * * |
6 | * This program is free software; you can redistribute it and/or modify * |
7 | * it under the terms of the GNU General Public License as published by * |
8 | * the Free Software Foundation; either version 2 of the License, or * |
9 | * (at your option) any later version. * |
10 | * * |
11 | * This program is distributed in the hope that it will be useful, * |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
14 | * GNU General Public License for more details. * |
15 | * * |
16 | * You should have received a copy of the GNU General Public License * |
17 | * along with this program; if not, write to the * |
18 | * Free Software Foundation, Inc., * |
19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * |
20 | * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ |
21 | |
22 | /* This file contains the Core config functions which will be exported |
23 | * outside of the core library. |
24 | */ |
25 | |
26 | #include <stdio.h> |
27 | #include <stdlib.h> |
28 | #include <string.h> |
29 | |
30 | #define M64P_CORE_PROTOTYPES 1 |
31 | #include "m64p_types.h" |
32 | #include "m64p_config.h" |
33 | #include "config.h" |
34 | #include "callbacks.h" |
35 | |
36 | #include "main/util.h" |
37 | |
38 | #include "osal/files.h" |
39 | #include "osal/preproc.h" |
40 | |
41 | /* local types */ |
42 | #define MUPEN64PLUS_CFG_NAME "mupen64plus.cfg" |
43 | |
44 | #define SECTION_MAGIC 0xDBDC0580 |
45 | |
46 | typedef struct _config_var { |
47 | char *name; |
48 | m64p_type type; |
49 | union { |
50 | int integer; |
51 | float number; |
52 | char *string; |
53 | } val; |
54 | char *comment; |
55 | struct _config_var *next; |
56 | } config_var; |
57 | |
58 | typedef struct _config_section { |
59 | int magic; |
60 | char *name; |
61 | struct _config_var *first_var; |
62 | struct _config_section *next; |
63 | } config_section; |
64 | |
65 | typedef config_section *config_list; |
66 | |
67 | /* local variables */ |
68 | static int l_ConfigInit = 0; |
69 | static int l_SaveConfigOnExit = 0; |
70 | static char *l_DataDirOverride = NULL; |
71 | static char *l_ConfigDirOverride = NULL; |
72 | static config_list l_ConfigListActive = NULL; |
73 | static config_list l_ConfigListSaved = NULL; |
74 | |
75 | /* --------------- */ |
76 | /* local functions */ |
77 | /* --------------- */ |
78 | |
79 | static int is_numeric(const char *string) |
80 | { |
81 | char chTemp[16]; |
82 | float fTemp; |
83 | int rval = sscanf(string, "%f%8s", &fTemp, chTemp); |
84 | |
85 | /* I want to find exactly one matched input item: a number with no garbage on the end */ |
86 | /* I use sscanf() instead of a custom loop because this routine must handle locales in which the decimal separator is not '.' */ |
87 | return (rval == 1); |
88 | } |
89 | |
90 | /* This function returns a pointer to the pointer of the requested section |
91 | * (i.e. a pointer the next field of the previous element, or to the first node). |
92 | * |
93 | * If there's no section named 'ParamName', returns the pointer to the next |
94 | * field of the last element in the list (such that derefencing it is NULL). |
95 | * |
96 | * Useful for operations that need to modify the links, e.g. deleting a section. |
97 | */ |
98 | static config_section **find_section_link(config_list *list, const char *ParamName) |
99 | { |
100 | config_section **curr_sec_link; |
101 | for (curr_sec_link = list; *curr_sec_link != NULL; curr_sec_link = &(*curr_sec_link)->next) |
102 | { |
103 | if (osal_insensitive_strcmp(ParamName, (*curr_sec_link)->name) == 0) |
104 | break; |
105 | } |
106 | |
107 | return curr_sec_link; |
108 | } |
109 | |
110 | /* This function is similar to the previous function, but instead it returns a |
111 | * pointer to the pointer to the next section whose name is alphabetically |
112 | * greater than or equal to 'ParamName'. |
113 | * |
114 | * Useful for inserting a section in its alphabetical position. |
115 | */ |
116 | static config_section **find_alpha_section_link(config_list *list, const char *ParamName) |
117 | { |
118 | config_section **curr_sec_link; |
119 | for (curr_sec_link = list; *curr_sec_link != NULL; curr_sec_link = &(*curr_sec_link)->next) |
120 | { |
121 | if (osal_insensitive_strcmp((*curr_sec_link)->name, ParamName) >= 0) |
122 | break; |
123 | } |
124 | |
125 | return curr_sec_link; |
126 | } |
127 | |
128 | static config_section *find_section(config_list list, const char *ParamName) |
129 | { |
130 | return *find_section_link(&list, ParamName); |
131 | } |
132 | |
133 | static config_var *config_var_create(const char *ParamName, const char *ParamHelp) |
134 | { |
135 | config_var *var = (config_var *) malloc(sizeof(config_var)); |
136 | |
137 | if (var == NULL || ParamName == NULL) |
138 | return NULL; |
139 | |
140 | memset(var, 0, sizeof(config_var)); |
141 | |
142 | var->name = strdup(ParamName); |
143 | if (var->name == NULL) |
144 | { |
145 | free(var); |
146 | return NULL; |
147 | } |
148 | |
149 | var->type = M64TYPE_INT; |
150 | var->val.integer = 0; |
151 | |
152 | if (ParamHelp != NULL) |
153 | { |
154 | var->comment = strdup(ParamHelp); |
155 | if (var->comment == NULL) |
156 | { |
157 | free(var->name); |
158 | free(var); |
159 | return NULL; |
160 | } |
161 | } |
162 | else |
163 | var->comment = NULL; |
164 | |
165 | var->next = NULL; |
166 | return var; |
167 | } |
168 | |
169 | static config_var *find_section_var(config_section *section, const char *ParamName) |
170 | { |
171 | /* walk through the linked list of variables in the section */ |
172 | config_var *curr_var; |
173 | for (curr_var = section->first_var; curr_var != NULL; curr_var = curr_var->next) |
174 | { |
175 | if (osal_insensitive_strcmp(ParamName, curr_var->name) == 0) |
176 | return curr_var; |
177 | } |
178 | |
179 | /* couldn't find this configuration parameter */ |
180 | return NULL; |
181 | } |
182 | |
183 | static void append_var_to_section(config_section *section, config_var *var) |
184 | { |
185 | config_var *last_var; |
186 | |
187 | if (section == NULL || var == NULL || section->magic != SECTION_MAGIC) |
188 | return; |
189 | |
190 | if (section->first_var == NULL) |
191 | { |
192 | section->first_var = var; |
193 | return; |
194 | } |
195 | |
196 | last_var = section->first_var; |
197 | while (last_var->next != NULL) |
198 | last_var = last_var->next; |
199 | |
200 | last_var->next = var; |
201 | } |
202 | |
203 | static void delete_var(config_var *var) |
204 | { |
205 | if (var->type == M64TYPE_STRING) |
206 | free(var->val.string); |
207 | free(var->name); |
208 | free(var->comment); |
209 | free(var); |
210 | } |
211 | |
212 | static void delete_section(config_section *pSection) |
213 | { |
214 | config_var *curr_var; |
215 | |
216 | if (pSection == NULL) |
217 | return; |
218 | |
219 | curr_var = pSection->first_var; |
220 | while (curr_var != NULL) |
221 | { |
222 | config_var *next_var = curr_var->next; |
223 | delete_var(curr_var); |
224 | curr_var = next_var; |
225 | } |
226 | |
227 | free(pSection->name); |
228 | free(pSection); |
229 | } |
230 | |
231 | static void delete_list(config_list *pConfigList) |
232 | { |
233 | config_section *curr_section = *pConfigList; |
234 | while (curr_section != NULL) |
235 | { |
236 | config_section *next_section = curr_section->next; |
237 | /* delete the section itself */ |
238 | delete_section(curr_section); |
239 | |
240 | curr_section = next_section; |
241 | } |
242 | |
243 | *pConfigList = NULL; |
244 | } |
245 | |
246 | static config_section *config_section_create(const char *ParamName) |
247 | { |
248 | config_section *sec; |
249 | |
250 | if (ParamName == NULL) |
251 | return NULL; |
252 | |
253 | sec = (config_section *) malloc(sizeof(config_section)); |
254 | if (sec == NULL) |
255 | return NULL; |
256 | |
257 | sec->magic = SECTION_MAGIC; |
258 | sec->name = strdup(ParamName); |
259 | if (sec->name == NULL) |
260 | { |
261 | free(sec); |
262 | return NULL; |
263 | } |
264 | sec->first_var = NULL; |
265 | sec->next = NULL; |
266 | return sec; |
267 | } |
268 | |
269 | static config_section * section_deepcopy(config_section *orig_section) |
270 | { |
271 | config_section *new_section; |
272 | config_var *orig_var, *last_new_var; |
273 | |
274 | /* Input validation */ |
275 | if (orig_section == NULL) |
276 | return NULL; |
277 | |
278 | /* create and copy section struct */ |
279 | new_section = config_section_create(orig_section->name); |
280 | if (new_section == NULL) |
281 | return NULL; |
282 | |
283 | /* create and copy all section variables */ |
284 | orig_var = orig_section->first_var; |
285 | last_new_var = NULL; |
286 | while (orig_var != NULL) |
287 | { |
288 | config_var *new_var = config_var_create(orig_var->name, orig_var->comment); |
289 | if (new_var == NULL) |
290 | { |
291 | delete_section(new_section); |
292 | return NULL; |
293 | } |
294 | |
295 | new_var->type = orig_var->type; |
296 | switch (orig_var->type) |
297 | { |
298 | case M64TYPE_INT: |
299 | case M64TYPE_BOOL: |
300 | new_var->val.integer = orig_var->val.integer; |
301 | break; |
302 | |
303 | case M64TYPE_FLOAT: |
304 | new_var->val.number = orig_var->val.number; |
305 | break; |
306 | |
307 | case M64TYPE_STRING: |
308 | if (orig_var->val.string != NULL) |
309 | { |
310 | new_var->val.string = strdup(orig_var->val.string); |
311 | if (new_var->val.string == NULL) |
312 | { |
313 | delete_section(new_section); |
314 | return NULL; |
315 | } |
316 | } |
317 | else |
318 | new_var->val.string = NULL; |
319 | |
320 | break; |
321 | } |
322 | |
323 | /* add the new variable to the new section */ |
324 | if (last_new_var == NULL) |
325 | new_section->first_var = new_var; |
326 | else |
327 | last_new_var->next = new_var; |
328 | last_new_var = new_var; |
329 | /* advance variable pointer in original section variable list */ |
330 | orig_var = orig_var->next; |
331 | } |
332 | |
333 | return new_section; |
334 | } |
335 | |
336 | static void copy_configlist_active_to_saved(void) |
337 | { |
338 | config_section *curr_section = l_ConfigListActive; |
339 | config_section *last_section = NULL; |
340 | |
341 | /* delete any pre-existing Saved config list */ |
342 | delete_list(&l_ConfigListSaved); |
343 | |
344 | /* duplicate all of the config sections in the Active list, adding them to the Saved list */ |
345 | while (curr_section != NULL) |
346 | { |
347 | config_section *new_section = section_deepcopy(curr_section); |
348 | if (new_section == NULL) break; |
349 | if (last_section == NULL) |
350 | l_ConfigListSaved = new_section; |
351 | else |
352 | last_section->next = new_section; |
353 | last_section = new_section; |
354 | curr_section = curr_section->next; |
355 | } |
356 | } |
357 | |
358 | static m64p_error write_configlist_file(void) |
359 | { |
360 | config_section *curr_section; |
361 | const char *configpath; |
362 | char *filepath; |
363 | FILE *fPtr; |
364 | |
365 | /* get the full pathname to the config file and try to open it */ |
366 | configpath = ConfigGetUserConfigPath(); |
367 | if (configpath == NULL) |
368 | return M64ERR_FILES; |
369 | |
370 | filepath = combinepath(configpath, MUPEN64PLUS_CFG_NAME); |
371 | if (filepath == NULL) |
372 | return M64ERR_NO_MEMORY; |
373 | |
374 | fPtr = fopen(filepath, "wb"); |
375 | if (fPtr == NULL) |
376 | { |
377 | DebugMessage(M64MSG_ERROR, "Couldn't open configuration file '%s' for writing.", filepath); |
378 | free(filepath); |
379 | return M64ERR_FILES; |
380 | } |
381 | free(filepath); |
382 | |
383 | /* write out header */ |
384 | fprintf(fPtr, "# Mupen64Plus Configuration File\n"); |
385 | fprintf(fPtr, "# This file is automatically read and written by the Mupen64Plus Core library\n"); |
386 | |
387 | /* write out all of the config parameters from the Saved list */ |
388 | curr_section = l_ConfigListSaved; |
389 | while (curr_section != NULL) |
390 | { |
391 | config_var *curr_var = curr_section->first_var; |
392 | fprintf(fPtr, "\n[%s]\n\n", curr_section->name); |
393 | while (curr_var != NULL) |
394 | { |
395 | if (curr_var->comment != NULL && strlen(curr_var->comment) > 0) |
396 | fprintf(fPtr, "# %s\n", curr_var->comment); |
397 | if (curr_var->type == M64TYPE_INT) |
398 | fprintf(fPtr, "%s = %i\n", curr_var->name, curr_var->val.integer); |
399 | else if (curr_var->type == M64TYPE_FLOAT) |
400 | fprintf(fPtr, "%s = %f\n", curr_var->name, curr_var->val.number); |
401 | else if (curr_var->type == M64TYPE_BOOL && curr_var->val.integer) |
402 | fprintf(fPtr, "%s = True\n", curr_var->name); |
403 | else if (curr_var->type == M64TYPE_BOOL && !curr_var->val.integer) |
404 | fprintf(fPtr, "%s = False\n", curr_var->name); |
405 | else if (curr_var->type == M64TYPE_STRING && curr_var->val.string != NULL) |
406 | fprintf(fPtr, "%s = \"%s\"\n", curr_var->name, curr_var->val.string); |
407 | curr_var = curr_var->next; |
408 | } |
409 | fprintf(fPtr, "\n"); |
410 | curr_section = curr_section->next; |
411 | } |
412 | |
413 | fclose(fPtr); |
414 | return M64ERR_SUCCESS; |
415 | } |
416 | |
417 | /* ----------------------------------------------------------- */ |
418 | /* these functions are only to be used within the Core library */ |
419 | /* ----------------------------------------------------------- */ |
420 | |
421 | m64p_error ConfigInit(const char *ConfigDirOverride, const char *DataDirOverride) |
422 | { |
423 | m64p_error rval; |
424 | const char *configpath = NULL; |
425 | char *filepath; |
426 | long filelen; |
427 | FILE *fPtr; |
428 | char *configtext; |
429 | |
430 | config_section *current_section = NULL; |
431 | char *line, *end, *lastcomment; |
432 | |
433 | if (l_ConfigInit) |
434 | return M64ERR_ALREADY_INIT; |
435 | l_ConfigInit = 1; |
436 | |
437 | /* if a data directory was specified, make a copy of it */ |
438 | if (DataDirOverride != NULL) |
439 | { |
440 | l_DataDirOverride = strdup(DataDirOverride); |
441 | if (l_DataDirOverride == NULL) |
442 | return M64ERR_NO_MEMORY; |
443 | } |
444 | |
445 | /* if a config directory was specified, make a copy of it */ |
446 | if (ConfigDirOverride != NULL) |
447 | { |
448 | l_ConfigDirOverride = strdup(ConfigDirOverride); |
449 | if (l_ConfigDirOverride == NULL) |
450 | return M64ERR_NO_MEMORY; |
451 | } |
452 | |
453 | /* get the full pathname to the config file and try to open it */ |
454 | configpath = ConfigGetUserConfigPath(); |
455 | if (configpath == NULL) |
456 | return M64ERR_FILES; |
457 | |
458 | filepath = combinepath(configpath, MUPEN64PLUS_CFG_NAME); |
459 | if (filepath == NULL) |
460 | return M64ERR_NO_MEMORY; |
461 | |
462 | fPtr = fopen(filepath, "rb"); |
463 | if (fPtr == NULL) |
464 | { |
465 | DebugMessage(M64MSG_INFO, "Couldn't open configuration file '%s'. Using defaults.", filepath); |
466 | free(filepath); |
467 | l_SaveConfigOnExit = 1; /* auto-save the config file so that the defaults will be saved to disk */ |
468 | return M64ERR_SUCCESS; |
469 | } |
470 | free(filepath); |
471 | |
472 | /* read the entire config file */ |
473 | fseek(fPtr, 0L, SEEK_END); |
474 | filelen = ftell(fPtr); |
475 | fseek(fPtr, 0L, SEEK_SET); |
476 | |
477 | configtext = (char *) malloc(filelen + 1); |
478 | if (configtext == NULL) |
479 | { |
480 | fclose(fPtr); |
481 | return M64ERR_NO_MEMORY; |
482 | } |
483 | if (fread(configtext, 1, filelen, fPtr) != filelen) |
484 | { |
485 | free(configtext); |
486 | fclose(fPtr); |
487 | return M64ERR_FILES; |
488 | } |
489 | fclose(fPtr); |
490 | |
491 | /* parse the file data */ |
492 | current_section = NULL; |
493 | line = configtext; |
494 | end = configtext + filelen; |
495 | lastcomment = NULL; |
496 | *end = 0; |
497 | while (line < end) |
498 | { |
499 | ini_line l = ini_parse_line(&line); |
500 | switch (l.type) |
501 | { |
502 | case INI_COMMENT: |
503 | lastcomment = l.value; |
504 | break; |
505 | |
506 | case INI_SECTION: |
507 | rval = ConfigOpenSection(l.name, (m64p_handle *) ¤t_section); |
508 | if (rval != M64ERR_SUCCESS) |
509 | { |
510 | free(configtext); |
511 | return rval; |
512 | } |
513 | lastcomment = NULL; |
514 | break; |
515 | |
516 | case INI_PROPERTY: |
517 | if (l.value[0] == '"' && l.value[strlen(l.value)-1] == '"') |
518 | { |
519 | l.value++; |
520 | l.value[strlen(l.value)-1] = 0; |
521 | ConfigSetDefaultString((m64p_handle) current_section, l.name, l.value, lastcomment); |
522 | } |
523 | else if (osal_insensitive_strcmp(l.value, "false") == 0) |
524 | { |
525 | ConfigSetDefaultBool((m64p_handle) current_section, l.name, 0, lastcomment); |
526 | } |
527 | else if (osal_insensitive_strcmp(l.value, "true") == 0) |
528 | { |
529 | ConfigSetDefaultBool((m64p_handle) current_section, l.name, 1, lastcomment); |
530 | } |
531 | else if (is_numeric(l.value)) |
532 | { |
533 | int val_int = (int) strtol(l.value, NULL, 10); |
534 | float val_float = (float) strtod(l.value, NULL); |
535 | if ((val_float - val_int) != 0.0) |
536 | ConfigSetDefaultFloat((m64p_handle) current_section, l.name, val_float, lastcomment); |
537 | else |
538 | ConfigSetDefaultInt((m64p_handle) current_section, l.name, val_int, lastcomment); |
539 | } |
540 | else |
541 | { |
542 | /* assume that it's a string */ |
543 | ConfigSetDefaultString((m64p_handle) current_section, l.name, l.value, lastcomment); |
544 | } |
545 | lastcomment = NULL; |
546 | break; |
547 | |
548 | default: |
549 | break; |
550 | } |
551 | } |
552 | |
553 | /* release memory used for config file text */ |
554 | free(configtext); |
555 | |
556 | /* duplicate the entire config data list, to store a copy of the list which represents the state of the file on disk */ |
557 | copy_configlist_active_to_saved(); |
558 | |
559 | return M64ERR_SUCCESS; |
560 | } |
561 | |
562 | m64p_error ConfigShutdown(void) |
563 | { |
564 | /* first, save the file if necessary */ |
565 | if (l_SaveConfigOnExit) |
566 | ConfigSaveFile(); |
567 | |
568 | /* reset the initialized flag */ |
569 | if (!l_ConfigInit) |
570 | return M64ERR_NOT_INIT; |
571 | l_ConfigInit = 0; |
572 | |
573 | /* free any malloc'd local variables */ |
574 | if (l_DataDirOverride != NULL) |
575 | { |
576 | free(l_DataDirOverride); |
577 | l_DataDirOverride = NULL; |
578 | } |
579 | if (l_ConfigDirOverride != NULL) |
580 | { |
581 | free(l_ConfigDirOverride); |
582 | l_ConfigDirOverride = NULL; |
583 | } |
584 | |
585 | /* free all of the memory in the 2 lists */ |
586 | delete_list(&l_ConfigListActive); |
587 | delete_list(&l_ConfigListSaved); |
588 | |
589 | return M64ERR_SUCCESS; |
590 | } |
591 | |
592 | /* ------------------------------------------------ */ |
593 | /* Selector functions, exported outside of the Core */ |
594 | /* ------------------------------------------------ */ |
595 | |
596 | EXPORT m64p_error CALL ConfigListSections(void *context, void (*SectionListCallback)(void * context, const char * SectionName)) |
597 | { |
598 | config_section *curr_section; |
599 | |
600 | if (!l_ConfigInit) |
601 | return M64ERR_NOT_INIT; |
602 | if (SectionListCallback == NULL) |
603 | return M64ERR_INPUT_ASSERT; |
604 | |
605 | /* just walk through the section list, making a callback for each section name */ |
606 | curr_section = l_ConfigListActive; |
607 | while (curr_section != NULL) |
608 | { |
609 | (*SectionListCallback)(context, curr_section->name); |
610 | curr_section = curr_section->next; |
611 | } |
612 | |
613 | return M64ERR_SUCCESS; |
614 | } |
615 | |
616 | EXPORT m64p_error CALL ConfigOpenSection(const char *SectionName, m64p_handle *ConfigSectionHandle) |
617 | { |
618 | config_section **curr_section; |
619 | config_section *new_section; |
620 | |
621 | if (!l_ConfigInit) |
622 | return M64ERR_NOT_INIT; |
623 | if (SectionName == NULL || ConfigSectionHandle == NULL) |
624 | return M64ERR_INPUT_ASSERT; |
625 | |
626 | /* walk through the section list, looking for a case-insensitive name match */ |
627 | curr_section = find_alpha_section_link(&l_ConfigListActive, SectionName); |
628 | if (*curr_section != NULL && osal_insensitive_strcmp(SectionName, (*curr_section)->name) == 0) |
629 | { |
630 | *ConfigSectionHandle = *curr_section; |
631 | return M64ERR_SUCCESS; |
632 | } |
633 | |
634 | /* didn't find the section, so create new one */ |
635 | new_section = config_section_create(SectionName); |
636 | if (new_section == NULL) |
637 | return M64ERR_NO_MEMORY; |
638 | |
639 | /* add section to list in alphabetical order */ |
640 | new_section->next = *curr_section; |
641 | *curr_section = new_section; |
642 | |
643 | *ConfigSectionHandle = new_section; |
644 | return M64ERR_SUCCESS; |
645 | } |
646 | |
647 | EXPORT m64p_error CALL ConfigListParameters(m64p_handle ConfigSectionHandle, void *context, void (*ParameterListCallback)(void * context, const char *ParamName, m64p_type ParamType)) |
648 | { |
649 | config_section *section; |
650 | config_var *curr_var; |
651 | |
652 | if (!l_ConfigInit) |
653 | return M64ERR_NOT_INIT; |
654 | if (ConfigSectionHandle == NULL || ParameterListCallback == NULL) |
655 | return M64ERR_INPUT_ASSERT; |
656 | |
657 | section = (config_section *) ConfigSectionHandle; |
658 | if (section->magic != SECTION_MAGIC) |
659 | return M64ERR_INPUT_INVALID; |
660 | |
661 | /* walk through this section's parameter list, making a callback for each parameter */ |
662 | curr_var = section->first_var; |
663 | while (curr_var != NULL) |
664 | { |
665 | (*ParameterListCallback)(context, curr_var->name, curr_var->type); |
666 | curr_var = curr_var->next; |
667 | } |
668 | |
669 | return M64ERR_SUCCESS; |
670 | } |
671 | |
672 | EXPORT int CALL ConfigHasUnsavedChanges(const char *SectionName) |
673 | { |
674 | config_section *input_section, *curr_section; |
675 | config_var *active_var, *saved_var; |
676 | |
677 | /* check input conditions */ |
678 | if (!l_ConfigInit) |
679 | { |
680 | DebugMessage(M64MSG_ERROR, "ConfigHasUnsavedChanges(): Core config not initialized!"); |
681 | return 0; |
682 | } |
683 | |
684 | /* if SectionName is NULL or blank, then check all sections */ |
685 | if (SectionName == NULL || strlen(SectionName) < 1) |
686 | { |
687 | int iNumActiveSections = 0, iNumSavedSections = 0; |
688 | /* first, search through all sections in Active list. Recursively call ourself and return 1 if changed */ |
689 | curr_section = l_ConfigListActive; |
690 | while (curr_section != NULL) |
691 | { |
692 | if (ConfigHasUnsavedChanges(curr_section->name)) |
693 | return 1; |
694 | curr_section = curr_section->next; |
695 | iNumActiveSections++; |
696 | } |
697 | /* Next, count the number of Saved sections and see if the count matches */ |
698 | curr_section = l_ConfigListSaved; |
699 | while (curr_section != NULL) |
700 | { |
701 | curr_section = curr_section->next; |
702 | iNumSavedSections++; |
703 | } |
704 | if (iNumActiveSections == iNumSavedSections) |
705 | return 0; /* no changes */ |
706 | else |
707 | return 1; |
708 | } |
709 | |
710 | /* walk through the Active section list, looking for a case-insensitive name match with input string */ |
711 | input_section = find_section(l_ConfigListActive, SectionName); |
712 | if (input_section == NULL) |
713 | { |
714 | DebugMessage(M64MSG_ERROR, "ConfigHasUnsavedChanges(): section name '%s' not found!", SectionName); |
715 | return 0; |
716 | } |
717 | |
718 | /* walk through the Saved section list, looking for a case-insensitive name match */ |
719 | curr_section = find_section(l_ConfigListSaved, SectionName); |
720 | if (curr_section == NULL) |
721 | { |
722 | /* if this section isn't present in saved list, then it has been newly created */ |
723 | return 1; |
724 | } |
725 | |
726 | /* compare all of the variables in the two sections. They are expected to be in the same order */ |
727 | active_var = input_section->first_var; |
728 | saved_var = curr_section->first_var; |
729 | while (active_var != NULL && saved_var != NULL) |
730 | { |
731 | if (strcmp(active_var->name, saved_var->name) != 0) |
732 | return 1; |
733 | if (active_var->type != saved_var->type) |
734 | return 1; |
735 | switch(active_var->type) |
736 | { |
737 | case M64TYPE_INT: |
738 | if (active_var->val.integer != saved_var->val.integer) |
739 | return 1; |
740 | break; |
741 | case M64TYPE_FLOAT: |
742 | if (active_var->val.number != saved_var->val.number) |
743 | return 1; |
744 | break; |
745 | case M64TYPE_BOOL: |
746 | if ((active_var->val.integer != 0) != (saved_var->val.integer != 0)) |
747 | return 1; |
748 | break; |
749 | case M64TYPE_STRING: |
750 | if (active_var->val.string == NULL) |
751 | { |
752 | DebugMessage(M64MSG_ERROR, "ConfigHasUnsavedChanges(): Variable '%s' NULL Active string pointer!", active_var->name); |
753 | return 1; |
754 | } |
755 | if (saved_var->val.string == NULL) |
756 | { |
757 | DebugMessage(M64MSG_ERROR, "ConfigHasUnsavedChanges(): Variable '%s' NULL Saved string pointer!", active_var->name); |
758 | return 1; |
759 | } |
760 | if (strcmp(active_var->val.string, saved_var->val.string) != 0) |
761 | return 1; |
762 | break; |
763 | default: |
764 | DebugMessage(M64MSG_ERROR, "ConfigHasUnsavedChanges(): Invalid variable '%s' type %i!", active_var->name, active_var->type); |
765 | return 1; |
766 | } |
767 | if (active_var->comment != NULL && saved_var->comment != NULL && strcmp(active_var->comment, saved_var->comment) != 0) |
768 | return 1; |
769 | active_var = active_var->next; |
770 | saved_var = saved_var->next; |
771 | } |
772 | |
773 | /* any extra new variables on the end, or deleted variables? */ |
774 | if (active_var != NULL || saved_var != NULL) |
775 | return 1; |
776 | |
777 | /* exactly the same */ |
778 | return 0; |
779 | } |
780 | |
781 | /* ------------------------------------------------------- */ |
782 | /* Modifier functions, exported outside of the Core */ |
783 | /* ------------------------------------------------------- */ |
784 | |
785 | EXPORT m64p_error CALL ConfigDeleteSection(const char *SectionName) |
786 | { |
787 | config_section **curr_section_link; |
788 | config_section *next_section; |
789 | |
790 | if (!l_ConfigInit) |
791 | return M64ERR_NOT_INIT; |
792 | if (l_ConfigListActive == NULL) |
793 | return M64ERR_INPUT_NOT_FOUND; |
794 | |
795 | /* find the named section and pull it out of the list */ |
796 | curr_section_link = find_section_link(&l_ConfigListActive, SectionName); |
797 | if (*curr_section_link == NULL) |
798 | return M64ERR_INPUT_NOT_FOUND; |
799 | |
800 | next_section = (*curr_section_link)->next; |
801 | |
802 | /* delete the named section */ |
803 | delete_section(*curr_section_link); |
804 | |
805 | /* fix the pointer to point to the next section after the deleted one */ |
806 | *curr_section_link = next_section; |
807 | |
808 | return M64ERR_SUCCESS; |
809 | } |
810 | |
811 | EXPORT m64p_error CALL ConfigSaveFile(void) |
812 | { |
813 | if (!l_ConfigInit) |
814 | return M64ERR_NOT_INIT; |
815 | |
816 | /* copy the active config list to the saved config list */ |
817 | copy_configlist_active_to_saved(); |
818 | |
819 | /* write the saved config list out to a file */ |
820 | return (write_configlist_file()); |
821 | } |
822 | |
823 | EXPORT m64p_error CALL ConfigSaveSection(const char *SectionName) |
824 | { |
825 | config_section *curr_section, *new_section; |
826 | config_section **insertion_point; |
827 | |
828 | if (!l_ConfigInit) |
829 | return M64ERR_NOT_INIT; |
830 | if (SectionName == NULL || strlen(SectionName) < 1) |
831 | return M64ERR_INPUT_ASSERT; |
832 | |
833 | /* walk through the Active section list, looking for a case-insensitive name match */ |
834 | curr_section = find_section(l_ConfigListActive, SectionName); |
835 | if (curr_section == NULL) |
836 | return M64ERR_INPUT_NOT_FOUND; |
837 | |
838 | /* duplicate this section */ |
839 | new_section = section_deepcopy(curr_section); |
840 | if (new_section == NULL) |
841 | return M64ERR_NO_MEMORY; |
842 | |
843 | /* update config section that's in the Saved list with the new one */ |
844 | insertion_point = find_alpha_section_link(&l_ConfigListSaved, SectionName); |
845 | if (*insertion_point != NULL && osal_insensitive_strcmp((*insertion_point)->name, SectionName) == 0) |
846 | { |
847 | /* the section exists in the saved list and will be replaced */ |
848 | new_section->next = (*insertion_point)->next; |
849 | delete_section(*insertion_point); |
850 | *insertion_point = new_section; |
851 | } |
852 | else |
853 | { |
854 | /* the section didn't exist in the saved list and has to be inserted */ |
855 | new_section->next = *insertion_point; |
856 | *insertion_point = new_section; |
857 | } |
858 | |
859 | /* write the saved config list out to a file */ |
860 | return (write_configlist_file()); |
861 | } |
862 | |
863 | EXPORT m64p_error CALL ConfigRevertChanges(const char *SectionName) |
864 | { |
865 | config_section **active_section_link, *active_section, *saved_section, *new_section; |
866 | |
867 | /* check input conditions */ |
868 | if (!l_ConfigInit) |
869 | return M64ERR_NOT_INIT; |
870 | if (SectionName == NULL) |
871 | return M64ERR_INPUT_ASSERT; |
872 | |
873 | /* walk through the Active section list, looking for a case-insensitive name match with input string */ |
874 | active_section_link = find_section_link(&l_ConfigListActive, SectionName); |
875 | active_section = *active_section_link; |
876 | if (active_section == NULL) |
877 | return M64ERR_INPUT_NOT_FOUND; |
878 | |
879 | /* walk through the Saved section list, looking for a case-insensitive name match */ |
880 | saved_section = find_section(l_ConfigListSaved, SectionName); |
881 | if (saved_section == NULL) |
882 | { |
883 | /* if this section isn't present in saved list, then it has been newly created */ |
884 | return M64ERR_INPUT_NOT_FOUND; |
885 | } |
886 | |
887 | /* copy the section as it is on the disk */ |
888 | new_section = section_deepcopy(saved_section); |
889 | if (new_section == NULL) |
890 | return M64ERR_NO_MEMORY; |
891 | |
892 | /* replace active_section with saved_section in the linked list */ |
893 | *active_section_link = new_section; |
894 | new_section->next = active_section->next; |
895 | |
896 | /* release memory associated with active_section */ |
897 | delete_section(active_section); |
898 | |
899 | return M64ERR_SUCCESS; |
900 | } |
901 | |
902 | |
903 | /* ------------------------------------------------------- */ |
904 | /* Generic Get/Set functions, exported outside of the Core */ |
905 | /* ------------------------------------------------------- */ |
906 | |
907 | EXPORT m64p_error CALL ConfigSetParameter(m64p_handle ConfigSectionHandle, const char *ParamName, m64p_type ParamType, const void *ParamValue) |
908 | { |
909 | config_section *section; |
910 | config_var *var; |
911 | |
912 | /* check input conditions */ |
913 | if (!l_ConfigInit) |
914 | return M64ERR_NOT_INIT; |
915 | if (ConfigSectionHandle == NULL || ParamName == NULL || ParamValue == NULL || (int) ParamType < 1 || (int) ParamType > 4) |
916 | return M64ERR_INPUT_ASSERT; |
917 | |
918 | section = (config_section *) ConfigSectionHandle; |
919 | if (section->magic != SECTION_MAGIC) |
920 | return M64ERR_INPUT_INVALID; |
921 | |
922 | /* if this parameter doesn't already exist, then create it and add it to the section */ |
923 | var = find_section_var(section, ParamName); |
924 | if (var == NULL) |
925 | { |
926 | var = config_var_create(ParamName, NULL); |
927 | if (var == NULL) |
928 | return M64ERR_NO_MEMORY; |
929 | append_var_to_section(section, var); |
930 | } |
931 | |
932 | /* cleanup old values */ |
933 | switch (var->type) |
934 | { |
935 | case M64TYPE_STRING: |
936 | free(var->val.string); |
937 | break; |
938 | default: |
939 | break; |
940 | } |
941 | |
942 | /* set this parameter's value */ |
943 | var->type = ParamType; |
944 | switch(ParamType) |
945 | { |
946 | case M64TYPE_INT: |
947 | var->val.integer = *((int *) ParamValue); |
948 | break; |
949 | case M64TYPE_FLOAT: |
950 | var->val.number = *((float *) ParamValue); |
951 | break; |
952 | case M64TYPE_BOOL: |
953 | var->val.integer = (*((int *) ParamValue) != 0); |
954 | break; |
955 | case M64TYPE_STRING: |
956 | var->val.string = strdup((char *)ParamValue); |
957 | if (var->val.string == NULL) |
958 | return M64ERR_NO_MEMORY; |
959 | break; |
960 | default: |
961 | /* this is logically impossible because of the ParamType check at the top of this function */ |
962 | break; |
963 | } |
964 | |
965 | return M64ERR_SUCCESS; |
966 | } |
967 | |
968 | EXPORT m64p_error CALL ConfigGetParameter(m64p_handle ConfigSectionHandle, const char *ParamName, m64p_type ParamType, void *ParamValue, int MaxSize) |
969 | { |
970 | config_section *section; |
971 | config_var *var; |
972 | |
973 | /* check input conditions */ |
974 | if (!l_ConfigInit) |
975 | return M64ERR_NOT_INIT; |
976 | if (ConfigSectionHandle == NULL || ParamName == NULL || ParamValue == NULL || (int) ParamType < 1 || (int) ParamType > 4) |
977 | return M64ERR_INPUT_ASSERT; |
978 | |
979 | section = (config_section *) ConfigSectionHandle; |
980 | if (section->magic != SECTION_MAGIC) |
981 | return M64ERR_INPUT_INVALID; |
982 | |
983 | /* if this parameter doesn't already exist, return an error */ |
984 | var = find_section_var(section, ParamName); |
985 | if (var == NULL) |
986 | return M64ERR_INPUT_NOT_FOUND; |
987 | |
988 | /* call the specific Get function to translate the parameter to the desired type */ |
989 | switch(ParamType) |
990 | { |
991 | case M64TYPE_INT: |
992 | if (MaxSize < sizeof(int)) return M64ERR_INPUT_INVALID; |
993 | if (var->type != M64TYPE_INT && var->type != M64TYPE_FLOAT) return M64ERR_WRONG_TYPE; |
994 | *((int *) ParamValue) = ConfigGetParamInt(ConfigSectionHandle, ParamName); |
995 | break; |
996 | case M64TYPE_FLOAT: |
997 | if (MaxSize < sizeof(float)) return M64ERR_INPUT_INVALID; |
998 | if (var->type != M64TYPE_INT && var->type != M64TYPE_FLOAT) return M64ERR_WRONG_TYPE; |
999 | *((float *) ParamValue) = ConfigGetParamFloat(ConfigSectionHandle, ParamName); |
1000 | break; |
1001 | case M64TYPE_BOOL: |
1002 | if (MaxSize < sizeof(int)) return M64ERR_INPUT_INVALID; |
1003 | if (var->type != M64TYPE_BOOL && var->type != M64TYPE_INT) return M64ERR_WRONG_TYPE; |
1004 | *((int *) ParamValue) = ConfigGetParamBool(ConfigSectionHandle, ParamName); |
1005 | break; |
1006 | case M64TYPE_STRING: |
1007 | { |
1008 | const char *string; |
1009 | if (MaxSize < 1) return M64ERR_INPUT_INVALID; |
1010 | if (var->type != M64TYPE_STRING && var->type != M64TYPE_BOOL) return M64ERR_WRONG_TYPE; |
1011 | string = ConfigGetParamString(ConfigSectionHandle, ParamName); |
1012 | strncpy((char *) ParamValue, string, MaxSize); |
1013 | *((char *) ParamValue + MaxSize - 1) = 0; |
1014 | break; |
1015 | } |
1016 | default: |
1017 | /* this is logically impossible because of the ParamType check at the top of this function */ |
1018 | break; |
1019 | } |
1020 | |
1021 | return M64ERR_SUCCESS; |
1022 | } |
1023 | |
1024 | EXPORT m64p_error CALL ConfigGetParameterType(m64p_handle ConfigSectionHandle, const char *ParamName, m64p_type *ParamType) |
1025 | { |
1026 | config_section *section; |
1027 | config_var *var; |
1028 | |
1029 | /* check input conditions */ |
1030 | if (!l_ConfigInit) |
1031 | return M64ERR_NOT_INIT; |
1032 | if (ConfigSectionHandle == NULL || ParamName == NULL || ParamType == NULL) |
1033 | return M64ERR_INPUT_ASSERT; |
1034 | |
1035 | section = (config_section *) ConfigSectionHandle; |
1036 | if (section->magic != SECTION_MAGIC) |
1037 | return M64ERR_INPUT_INVALID; |
1038 | |
1039 | /* if this parameter doesn't already exist, return an error */ |
1040 | var = find_section_var(section, ParamName); |
1041 | if (var == NULL) |
1042 | return M64ERR_INPUT_NOT_FOUND; |
1043 | |
1044 | *ParamType = var->type; |
1045 | return M64ERR_SUCCESS; |
1046 | } |
1047 | |
1048 | |
1049 | EXPORT const char * CALL ConfigGetParameterHelp(m64p_handle ConfigSectionHandle, const char *ParamName) |
1050 | { |
1051 | config_section *section; |
1052 | config_var *var; |
1053 | |
1054 | /* check input conditions */ |
1055 | if (!l_ConfigInit || ConfigSectionHandle == NULL || ParamName == NULL) |
1056 | return NULL; |
1057 | |
1058 | section = (config_section *) ConfigSectionHandle; |
1059 | if (section->magic != SECTION_MAGIC) |
1060 | return NULL; |
1061 | |
1062 | /* if this parameter doesn't exist, return an error */ |
1063 | var = find_section_var(section, ParamName); |
1064 | if (var == NULL) |
1065 | return NULL; |
1066 | |
1067 | return var->comment; |
1068 | } |
1069 | |
1070 | /* ------------------------------------------------------- */ |
1071 | /* Special Get/Set functions, exported outside of the Core */ |
1072 | /* ------------------------------------------------------- */ |
1073 | |
1074 | EXPORT m64p_error CALL ConfigSetDefaultInt(m64p_handle ConfigSectionHandle, const char *ParamName, int ParamValue, const char *ParamHelp) |
1075 | { |
1076 | config_section *section; |
1077 | config_var *var; |
1078 | |
1079 | /* check input conditions */ |
1080 | if (!l_ConfigInit) |
1081 | return M64ERR_NOT_INIT; |
1082 | if (ConfigSectionHandle == NULL || ParamName == NULL) |
1083 | return M64ERR_INPUT_ASSERT; |
1084 | |
1085 | section = (config_section *) ConfigSectionHandle; |
1086 | if (section->magic != SECTION_MAGIC) |
1087 | return M64ERR_INPUT_INVALID; |
1088 | |
1089 | /* if this parameter already exists, then just return successfully */ |
1090 | var = find_section_var(section, ParamName); |
1091 | if (var != NULL) |
1092 | return M64ERR_SUCCESS; |
1093 | |
1094 | /* otherwise create a new config_var object and add it to this section */ |
1095 | var = config_var_create(ParamName, ParamHelp); |
1096 | if (var == NULL) |
1097 | return M64ERR_NO_MEMORY; |
1098 | var->type = M64TYPE_INT; |
1099 | var->val.integer = ParamValue; |
1100 | append_var_to_section(section, var); |
1101 | |
1102 | return M64ERR_SUCCESS; |
1103 | } |
1104 | |
1105 | EXPORT m64p_error CALL ConfigSetDefaultFloat(m64p_handle ConfigSectionHandle, const char *ParamName, float ParamValue, const char *ParamHelp) |
1106 | { |
1107 | config_section *section; |
1108 | config_var *var; |
1109 | |
1110 | /* check input conditions */ |
1111 | if (!l_ConfigInit) |
1112 | return M64ERR_NOT_INIT; |
1113 | if (ConfigSectionHandle == NULL || ParamName == NULL) |
1114 | return M64ERR_INPUT_ASSERT; |
1115 | |
1116 | section = (config_section *) ConfigSectionHandle; |
1117 | if (section->magic != SECTION_MAGIC) |
1118 | return M64ERR_INPUT_INVALID; |
1119 | |
1120 | /* if this parameter already exists, then just return successfully */ |
1121 | var = find_section_var(section, ParamName); |
1122 | if (var != NULL) |
1123 | return M64ERR_SUCCESS; |
1124 | |
1125 | /* otherwise create a new config_var object and add it to this section */ |
1126 | var = config_var_create(ParamName, ParamHelp); |
1127 | if (var == NULL) |
1128 | return M64ERR_NO_MEMORY; |
1129 | var->type = M64TYPE_FLOAT; |
1130 | var->val.number = ParamValue; |
1131 | append_var_to_section(section, var); |
1132 | |
1133 | return M64ERR_SUCCESS; |
1134 | } |
1135 | |
1136 | EXPORT m64p_error CALL ConfigSetDefaultBool(m64p_handle ConfigSectionHandle, const char *ParamName, int ParamValue, const char *ParamHelp) |
1137 | { |
1138 | config_section *section; |
1139 | config_var *var; |
1140 | |
1141 | /* check input conditions */ |
1142 | if (!l_ConfigInit) |
1143 | return M64ERR_NOT_INIT; |
1144 | if (ConfigSectionHandle == NULL || ParamName == NULL) |
1145 | return M64ERR_INPUT_ASSERT; |
1146 | |
1147 | section = (config_section *) ConfigSectionHandle; |
1148 | if (section->magic != SECTION_MAGIC) |
1149 | return M64ERR_INPUT_INVALID; |
1150 | |
1151 | /* if this parameter already exists, then just return successfully */ |
1152 | var = find_section_var(section, ParamName); |
1153 | if (var != NULL) |
1154 | return M64ERR_SUCCESS; |
1155 | |
1156 | /* otherwise create a new config_var object and add it to this section */ |
1157 | var = config_var_create(ParamName, ParamHelp); |
1158 | if (var == NULL) |
1159 | return M64ERR_NO_MEMORY; |
1160 | var->type = M64TYPE_BOOL; |
1161 | var->val.integer = ParamValue ? 1 : 0; |
1162 | append_var_to_section(section, var); |
1163 | |
1164 | return M64ERR_SUCCESS; |
1165 | } |
1166 | |
1167 | EXPORT m64p_error CALL ConfigSetDefaultString(m64p_handle ConfigSectionHandle, const char *ParamName, const char * ParamValue, const char *ParamHelp) |
1168 | { |
1169 | config_section *section; |
1170 | config_var *var; |
1171 | |
1172 | /* check input conditions */ |
1173 | if (!l_ConfigInit) |
1174 | return M64ERR_NOT_INIT; |
1175 | if (ConfigSectionHandle == NULL || ParamName == NULL || ParamValue == NULL) |
1176 | return M64ERR_INPUT_ASSERT; |
1177 | |
1178 | section = (config_section *) ConfigSectionHandle; |
1179 | if (section->magic != SECTION_MAGIC) |
1180 | return M64ERR_INPUT_INVALID; |
1181 | |
1182 | /* if this parameter already exists, then just return successfully */ |
1183 | var = find_section_var(section, ParamName); |
1184 | if (var != NULL) |
1185 | return M64ERR_SUCCESS; |
1186 | |
1187 | /* otherwise create a new config_var object and add it to this section */ |
1188 | var = config_var_create(ParamName, ParamHelp); |
1189 | if (var == NULL) |
1190 | return M64ERR_NO_MEMORY; |
1191 | var->type = M64TYPE_STRING; |
1192 | var->val.string = strdup(ParamValue); |
1193 | if (var->val.string == NULL) |
1194 | { |
1195 | delete_var(var); |
1196 | return M64ERR_NO_MEMORY; |
1197 | } |
1198 | append_var_to_section(section, var); |
1199 | |
1200 | return M64ERR_SUCCESS; |
1201 | } |
1202 | |
1203 | EXPORT int CALL ConfigGetParamInt(m64p_handle ConfigSectionHandle, const char *ParamName) |
1204 | { |
1205 | config_section *section; |
1206 | config_var *var; |
1207 | |
1208 | /* check input conditions */ |
1209 | if (!l_ConfigInit || ConfigSectionHandle == NULL || ParamName == NULL) |
1210 | { |
1211 | DebugMessage(M64MSG_ERROR, "ConfigGetParamInt(): Input assertion!"); |
1212 | return 0; |
1213 | } |
1214 | |
1215 | section = (config_section *) ConfigSectionHandle; |
1216 | if (section->magic != SECTION_MAGIC) |
1217 | { |
1218 | DebugMessage(M64MSG_ERROR, "ConfigGetParamInt(): ConfigSectionHandle invalid!"); |
1219 | return 0; |
1220 | } |
1221 | |
1222 | /* if this parameter doesn't already exist, return an error */ |
1223 | var = find_section_var(section, ParamName); |
1224 | if (var == NULL) |
1225 | { |
1226 | DebugMessage(M64MSG_ERROR, "ConfigGetParamInt(): Parameter '%s' not found!", ParamName); |
1227 | return 0; |
1228 | } |
1229 | |
1230 | /* translate the actual variable type to an int */ |
1231 | switch(var->type) |
1232 | { |
1233 | case M64TYPE_INT: |
1234 | return var->val.integer; |
1235 | case M64TYPE_FLOAT: |
1236 | return (int) var->val.number; |
1237 | case M64TYPE_BOOL: |
1238 | return (var->val.integer != 0); |
1239 | case M64TYPE_STRING: |
1240 | return atoi(var->val.string); |
1241 | default: |
1242 | DebugMessage(M64MSG_ERROR, "ConfigGetParamInt(): invalid internal parameter type for '%s'", ParamName); |
1243 | return 0; |
1244 | } |
1245 | |
1246 | return 0; |
1247 | } |
1248 | |
1249 | EXPORT float CALL ConfigGetParamFloat(m64p_handle ConfigSectionHandle, const char *ParamName) |
1250 | { |
1251 | config_section *section; |
1252 | config_var *var; |
1253 | |
1254 | /* check input conditions */ |
1255 | if (!l_ConfigInit || ConfigSectionHandle == NULL || ParamName == NULL) |
1256 | { |
1257 | DebugMessage(M64MSG_ERROR, "ConfigGetParamFloat(): Input assertion!"); |
1258 | return 0.0; |
1259 | } |
1260 | |
1261 | section = (config_section *) ConfigSectionHandle; |
1262 | if (section->magic != SECTION_MAGIC) |
1263 | { |
1264 | DebugMessage(M64MSG_ERROR, "ConfigGetParamFloat(): ConfigSectionHandle invalid!"); |
1265 | return 0.0; |
1266 | } |
1267 | |
1268 | /* if this parameter doesn't already exist, return an error */ |
1269 | var = find_section_var(section, ParamName); |
1270 | if (var == NULL) |
1271 | { |
1272 | DebugMessage(M64MSG_ERROR, "ConfigGetParamFloat(): Parameter '%s' not found!", ParamName); |
1273 | return 0.0; |
1274 | } |
1275 | |
1276 | /* translate the actual variable type to an int */ |
1277 | switch(var->type) |
1278 | { |
1279 | case M64TYPE_INT: |
1280 | return (float) var->val.integer; |
1281 | case M64TYPE_FLOAT: |
1282 | return var->val.number; |
1283 | case M64TYPE_BOOL: |
1284 | return (var->val.integer != 0) ? 1.0f : 0.0f; |
1285 | case M64TYPE_STRING: |
1286 | return (float) atof(var->val.string); |
1287 | default: |
1288 | DebugMessage(M64MSG_ERROR, "ConfigGetParamFloat(): invalid internal parameter type for '%s'", ParamName); |
1289 | return 0.0; |
1290 | } |
1291 | |
1292 | return 0.0; |
1293 | } |
1294 | |
1295 | EXPORT int CALL ConfigGetParamBool(m64p_handle ConfigSectionHandle, const char *ParamName) |
1296 | { |
1297 | config_section *section; |
1298 | config_var *var; |
1299 | |
1300 | /* check input conditions */ |
1301 | if (!l_ConfigInit || ConfigSectionHandle == NULL || ParamName == NULL) |
1302 | { |
1303 | DebugMessage(M64MSG_ERROR, "ConfigGetParamBool(): Input assertion!"); |
1304 | return 0; |
1305 | } |
1306 | |
1307 | section = (config_section *) ConfigSectionHandle; |
1308 | if (section->magic != SECTION_MAGIC) |
1309 | { |
1310 | DebugMessage(M64MSG_ERROR, "ConfigGetParamBool(): ConfigSectionHandle invalid!"); |
1311 | return 0; |
1312 | } |
1313 | |
1314 | /* if this parameter doesn't already exist, return an error */ |
1315 | var = find_section_var(section, ParamName); |
1316 | if (var == NULL) |
1317 | { |
1318 | DebugMessage(M64MSG_ERROR, "ConfigGetParamBool(): Parameter '%s' not found!", ParamName); |
1319 | return 0; |
1320 | } |
1321 | |
1322 | /* translate the actual variable type to an int */ |
1323 | switch(var->type) |
1324 | { |
1325 | case M64TYPE_INT: |
1326 | return (var->val.integer != 0); |
1327 | case M64TYPE_FLOAT: |
1328 | return (var->val.number != 0.0); |
1329 | case M64TYPE_BOOL: |
1330 | return var->val.integer; |
1331 | case M64TYPE_STRING: |
1332 | return (osal_insensitive_strcmp(var->val.string, "true") == 0); |
1333 | default: |
1334 | DebugMessage(M64MSG_ERROR, "ConfigGetParamBool(): invalid internal parameter type for '%s'", ParamName); |
1335 | return 0; |
1336 | } |
1337 | |
1338 | return 0; |
1339 | } |
1340 | |
1341 | EXPORT const char * CALL ConfigGetParamString(m64p_handle ConfigSectionHandle, const char *ParamName) |
1342 | { |
1343 | static char outstr[64]; /* warning: not thread safe */ |
1344 | config_section *section; |
1345 | config_var *var; |
1346 | |
1347 | /* check input conditions */ |
1348 | if (!l_ConfigInit || ConfigSectionHandle == NULL || ParamName == NULL) |
1349 | { |
1350 | DebugMessage(M64MSG_ERROR, "ConfigGetParamString(): Input assertion!"); |
1351 | return ""; |
1352 | } |
1353 | |
1354 | section = (config_section *) ConfigSectionHandle; |
1355 | if (section->magic != SECTION_MAGIC) |
1356 | { |
1357 | DebugMessage(M64MSG_ERROR, "ConfigGetParamString(): ConfigSectionHandle invalid!"); |
1358 | return ""; |
1359 | } |
1360 | |
1361 | /* if this parameter doesn't already exist, return an error */ |
1362 | var = find_section_var(section, ParamName); |
1363 | if (var == NULL) |
1364 | { |
1365 | DebugMessage(M64MSG_ERROR, "ConfigGetParamString(): Parameter '%s' not found!", ParamName); |
1366 | return ""; |
1367 | } |
1368 | |
1369 | /* translate the actual variable type to an int */ |
1370 | switch(var->type) |
1371 | { |
1372 | case M64TYPE_INT: |
1373 | snprintf(outstr, 63, "%i", var->val.integer); |
1374 | outstr[63] = 0; |
1375 | return outstr; |
1376 | case M64TYPE_FLOAT: |
1377 | snprintf(outstr, 63, "%f", var->val.number); |
1378 | outstr[63] = 0; |
1379 | return outstr; |
1380 | case M64TYPE_BOOL: |
1381 | return (var->val.integer ? "True" : "False"); |
1382 | case M64TYPE_STRING: |
1383 | return var->val.string; |
1384 | default: |
1385 | DebugMessage(M64MSG_ERROR, "ConfigGetParamString(): invalid internal parameter type for '%s'", ParamName); |
1386 | return ""; |
1387 | } |
1388 | |
1389 | return ""; |
1390 | } |
1391 | |
1392 | /* ------------------------------------------------------ */ |
1393 | /* OS Abstraction functions, exported outside of the Core */ |
1394 | /* ------------------------------------------------------ */ |
1395 | |
1396 | EXPORT const char * CALL ConfigGetSharedDataFilepath(const char *filename) |
1397 | { |
1398 | const char *configsharepath = NULL; |
1399 | m64p_handle CoreHandle = NULL; |
1400 | |
1401 | /* check input parameter */ |
1402 | if (filename == NULL) return NULL; |
1403 | |
1404 | /* try to get the SharedDataPath string variable in the Core configuration section */ |
1405 | if (ConfigOpenSection("Core", &CoreHandle) == M64ERR_SUCCESS) |
1406 | { |
1407 | configsharepath = ConfigGetParamString(CoreHandle, "SharedDataPath"); |
1408 | } |
1409 | |
1410 | return osal_get_shared_filepath(filename, l_DataDirOverride, configsharepath); |
1411 | } |
1412 | |
1413 | EXPORT const char * CALL ConfigGetUserConfigPath(void) |
1414 | { |
1415 | if (l_ConfigDirOverride != NULL) |
1416 | { |
1417 | osal_mkdirp(l_ConfigDirOverride, 0700); |
1418 | return l_ConfigDirOverride; |
1419 | } |
1420 | else |
1421 | return osal_get_user_configpath(); |
1422 | } |
1423 | |
1424 | EXPORT const char * CALL ConfigGetUserDataPath(void) |
1425 | { |
1426 | return osal_get_user_datapath(); |
1427 | } |
1428 | |
1429 | EXPORT const char * CALL ConfigGetUserCachePath(void) |
1430 | { |
1431 | return osal_get_user_cachepath(); |
1432 | } |
1433 | |