1 /* automaton - representation of büchi automaton */
3 /* Copyright (c) 2011-2014. The SimGrid Team.
4 * All rights reserved. */
6 /* This program is free software; you can redistribute it and/or modify it
7 * under the terms of the license (GNU LGPL) which comes with this package. */
9 #include "xbt/automaton.h"
10 #include <stdio.h> /* printf */
12 struct xbt_automaton_propositional_symbol{
14 /** Callback used to evaluate the value of the symbol */
15 int (*callback)(void*);
16 /** Additional data for the callback.
17 Alternatively it can be used as a pointer to the data. */
19 //** Optional callback used to free the data field */
20 void (*free_function)(void*);
23 xbt_automaton_t xbt_automaton_new(){
24 xbt_automaton_t automaton = NULL;
25 automaton = xbt_new0(struct xbt_automaton, 1);
26 automaton->states = xbt_dynar_new(sizeof(xbt_automaton_state_t), xbt_automaton_state_free_voidp);
27 automaton->transitions = xbt_dynar_new(sizeof(xbt_automaton_transition_t), xbt_automaton_transition_free_voidp);
28 automaton->propositional_symbols = xbt_dynar_new(sizeof(xbt_automaton_propositional_symbol_t), xbt_automaton_propositional_symbol_free_voidp);
32 xbt_automaton_state_t xbt_automaton_state_new(xbt_automaton_t a, int type, char* id){
33 xbt_automaton_state_t state = NULL;
34 state = xbt_new0(struct xbt_automaton_state, 1);
36 state->id = strdup(id);
37 state->in = xbt_dynar_new(sizeof(xbt_automaton_transition_t), xbt_automaton_transition_free_voidp);
38 state->out = xbt_dynar_new(sizeof(xbt_automaton_transition_t), xbt_automaton_transition_free_voidp);
39 xbt_dynar_push(a->states, &state);
43 xbt_automaton_transition_t xbt_automaton_transition_new(xbt_automaton_t a, xbt_automaton_state_t src, xbt_automaton_state_t dst, xbt_automaton_exp_label_t label){
44 xbt_automaton_transition_t transition = NULL;
45 transition = xbt_new0(struct xbt_automaton_transition, 1);
47 xbt_dynar_push(src->out, &transition);
48 transition->src = src;
51 xbt_dynar_push(dst->in, &transition);
52 transition->dst = dst;
54 transition->label = label;
55 xbt_dynar_push(a->transitions, &transition);
59 xbt_automaton_exp_label_t xbt_automaton_exp_label_new(int type, ...){
60 xbt_automaton_exp_label_t label = NULL;
61 label = xbt_new0(struct xbt_automaton_exp_label, 1);
68 xbt_automaton_exp_label_t left = va_arg(ap, xbt_automaton_exp_label_t);
69 xbt_automaton_exp_label_t right = va_arg(ap, xbt_automaton_exp_label_t);
70 label->u.or_and.left_exp = left;
71 label->u.or_and.right_exp = right;
75 xbt_automaton_exp_label_t left = va_arg(ap, xbt_automaton_exp_label_t);
76 xbt_automaton_exp_label_t right = va_arg(ap, xbt_automaton_exp_label_t);
77 label->u.or_and.left_exp = left;
78 label->u.or_and.right_exp = right;
82 xbt_automaton_exp_label_t exp_not = va_arg(ap, xbt_automaton_exp_label_t);
83 label->u.exp_not = exp_not;
87 char* p = va_arg(ap, char*);
88 label->u.predicat = strdup(p);
97 xbt_dynar_t xbt_automaton_get_states(xbt_automaton_t a){
101 xbt_dynar_t xbt_automaton_get_transitions(xbt_automaton_t a){
102 return a->transitions;
105 xbt_automaton_transition_t xbt_automaton_get_transition(xbt_automaton_t a, xbt_automaton_state_t src, xbt_automaton_state_t dst){
106 xbt_automaton_transition_t transition;
108 xbt_dynar_foreach(src->out, cursor, transition){
109 if((transition->src == src) && (transition->dst == dst))
115 xbt_automaton_state_t xbt_automaton_transition_get_source(xbt_automaton_transition_t t){
119 xbt_automaton_state_t xbt_automaton_transition_get_destination(xbt_automaton_transition_t t){
123 void xbt_automaton_transition_set_source(xbt_automaton_transition_t t, xbt_automaton_state_t src){
125 xbt_dynar_push(src->out,&t);
128 void xbt_automaton_transition_set_destination(xbt_automaton_transition_t t, xbt_automaton_state_t dst){
130 xbt_dynar_push(dst->in,&t);
133 xbt_dynar_t xbt_automaton_state_get_out_transitions(xbt_automaton_state_t s){
137 xbt_dynar_t xbt_automaton_state_get_in_transitions(xbt_automaton_state_t s){
141 xbt_automaton_state_t xbt_automaton_state_exists(xbt_automaton_t a, char *id){
142 xbt_automaton_state_t state = NULL;
143 unsigned int cursor = 0;
144 xbt_dynar_foreach(a->states, cursor, state){
145 if(strcmp(state->id, id)==0)
151 void xbt_automaton_display(xbt_automaton_t a){
152 unsigned int cursor = 0;
153 xbt_automaton_state_t state = NULL;
155 printf("\n\nEtat courant : %s\n", a->current_state->id);
157 printf("\nListe des états : %lu\n\n", xbt_dynar_length(a->states));
160 xbt_dynar_foreach(a->states, cursor, state){
161 printf("ID : %s, type : %d\n", state->id, state->type);
165 xbt_automaton_transition_t transition = NULL;
166 printf("\nListe des transitions : %lu\n\n", xbt_dynar_length(a->transitions));
168 xbt_dynar_foreach(a->transitions, cursor, transition){
170 xbt_automaton_exp_label_display(transition->label);
171 printf(", %s -> %s\n", transition->src->id, transition->dst->id);
175 void xbt_automaton_exp_label_display(xbt_automaton_exp_label_t label){
180 xbt_automaton_exp_label_display(label->u.or_and.left_exp);
182 xbt_automaton_exp_label_display(label->u.or_and.right_exp);
187 xbt_automaton_exp_label_display(label->u.or_and.left_exp);
189 xbt_automaton_exp_label_display(label->u.or_and.right_exp);
194 xbt_automaton_exp_label_display(label->u.exp_not);
198 printf("(%s)",label->u.predicat);
207 xbt_automaton_state_t xbt_automaton_get_current_state(xbt_automaton_t a){
208 return a->current_state;
211 static int call_simple_function(void* function)
213 return ((int (*)(void)) function)();
216 xbt_automaton_propositional_symbol_t xbt_automaton_propositional_symbol_new(xbt_automaton_t a, const char* id, int(*fct)(void)){
217 xbt_automaton_propositional_symbol_t prop_symb = NULL;
218 prop_symb = xbt_new0(struct xbt_automaton_propositional_symbol, 1);
219 prop_symb->pred = strdup(id);
220 prop_symb->callback = call_simple_function;
221 prop_symb->data = fct;
222 prop_symb->free_function = NULL;
223 xbt_dynar_push(a->propositional_symbols, &prop_symb);
227 XBT_PUBLIC(xbt_automaton_propositional_symbol_t) xbt_automaton_propositional_symbol_new_pointer(xbt_automaton_t a, const char* id, int* value)
229 xbt_automaton_propositional_symbol_t prop_symb = NULL;
230 prop_symb = xbt_new0(struct xbt_automaton_propositional_symbol, 1);
231 prop_symb->pred = strdup(id);
232 prop_symb->callback = NULL;
233 prop_symb->data = value;
234 prop_symb->free_function = NULL;
235 xbt_dynar_push(a->propositional_symbols, &prop_symb);
239 XBT_PUBLIC(xbt_automaton_propositional_symbol_t) xbt_automaton_propositional_symbol_new_callback(
240 xbt_automaton_t a, const char* id,
241 xbt_automaton_propositional_symbol_callback_type callback,
242 void* data, xbt_automaton_propositional_symbol_free_function_type free_function)
244 xbt_automaton_propositional_symbol_t prop_symb = NULL;
245 prop_symb = xbt_new0(struct xbt_automaton_propositional_symbol, 1);
246 prop_symb->pred = strdup(id);
247 prop_symb->callback = callback;
248 prop_symb->data = data;
249 prop_symb->free_function = free_function;
250 xbt_dynar_push(a->propositional_symbols, &prop_symb);
254 XBT_PUBLIC(int) xbt_automaton_propositional_symbol_evaluate(xbt_automaton_propositional_symbol_t symbol)
256 if (symbol->callback)
257 return (symbol->callback)(symbol->data);
259 return *(int*) symbol->data;
262 XBT_PUBLIC(xbt_automaton_propositional_symbol_callback_type) xbt_automaton_propositional_symbol_get_callback(xbt_automaton_propositional_symbol_t symbol)
264 return symbol->callback;
267 XBT_PUBLIC(void*) xbt_automaton_propositional_symbol_get_data(xbt_automaton_propositional_symbol_t symbol)
272 XBT_PUBLIC(const char*) xbt_automaton_propositional_symbol_get_name(xbt_automaton_propositional_symbol_t symbol)
277 int xbt_automaton_state_compare(xbt_automaton_state_t s1, xbt_automaton_state_t s2){
279 /* single id for each state, id and type sufficient for comparison*/
281 if(strcmp(s1->id, s2->id))
284 if(s1->type != s2->type)
291 int xbt_automaton_transition_compare(const void *t1, const void *t2){
293 if(xbt_automaton_state_compare(((xbt_automaton_transition_t)t1)->src, ((xbt_automaton_transition_t)t2)->src))
296 if(xbt_automaton_state_compare(((xbt_automaton_transition_t)t1)->dst, ((xbt_automaton_transition_t)t2)->dst))
299 if(xbt_automaton_exp_label_compare(((xbt_automaton_transition_t)t1)->label,((xbt_automaton_transition_t)t2)->label))
306 int xbt_automaton_exp_label_compare(xbt_automaton_exp_label_t l1, xbt_automaton_exp_label_t l2){
308 if(l1->type != l2->type)
315 if(xbt_automaton_exp_label_compare(l1->u.or_and.left_exp, l2->u.or_and.left_exp))
318 return xbt_automaton_exp_label_compare(l1->u.or_and.right_exp, l2->u.or_and.right_exp);
322 return xbt_automaton_exp_label_compare(l1->u.exp_not, l2->u.exp_not);
326 return (strcmp(l1->u.predicat, l2->u.predicat));
342 int xbt_automaton_propositional_symbols_compare_value(xbt_dynar_t s1, xbt_dynar_t s2){
346 unsigned int nb_elem = xbt_dynar_length(s1);
348 for(cursor=0;cursor<nb_elem;cursor++){
349 iptr1 = xbt_dynar_get_ptr(s1, cursor);
350 iptr2 = xbt_dynar_get_ptr(s2, cursor);
358 /************ Free functions ****************/
360 static void xbt_automaton_transition_free(xbt_automaton_transition_t t);
361 static void xbt_automaton_exp_label_free(xbt_automaton_exp_label_t e);
362 static void xbt_automaton_propositional_symbol_free(xbt_automaton_propositional_symbol_t ps);
364 void xbt_automaton_state_free(xbt_automaton_state_t s){
367 xbt_dynar_free(&(s->in));
368 xbt_dynar_free(&(s->out));
374 void xbt_automaton_state_free_voidp(void *s){
375 xbt_automaton_state_free((xbt_automaton_state_t) * (void **) s);
378 static void xbt_automaton_transition_free(xbt_automaton_transition_t t){
380 xbt_automaton_exp_label_free(t->label);
386 void xbt_automaton_transition_free_voidp(void *t){
387 xbt_automaton_transition_free((xbt_automaton_transition_t) * (void **) t);
390 static void xbt_automaton_exp_label_free(xbt_automaton_exp_label_t e){
395 xbt_automaton_exp_label_free(e->u.or_and.left_exp);
396 xbt_automaton_exp_label_free(e->u.or_and.right_exp);
399 xbt_automaton_exp_label_free(e->u.exp_not);
402 xbt_free(e->u.predicat);
412 void xbt_automaton_exp_label_free_voidp(void *e){
413 xbt_automaton_exp_label_free((xbt_automaton_exp_label_t) * (void **) e);
416 static void xbt_automaton_propositional_symbol_free(xbt_automaton_propositional_symbol_t ps){
424 void xbt_automaton_propositional_symbol_free_voidp(void *ps){
425 xbt_automaton_propositional_symbol_t symbol = (xbt_automaton_propositional_symbol_t) * (void **) ps;
426 if (symbol->free_function)
427 symbol->free_function(symbol->data);
428 xbt_free(symbol->pred);
429 xbt_automaton_propositional_symbol_free(symbol);
432 void xbt_automaton_free(xbt_automaton_t a){
434 xbt_dynar_free(&(a->propositional_symbols));
435 xbt_dynar_free(&(a->transitions));
436 xbt_dynar_free(&(a->states));
437 xbt_automaton_state_free(a->current_state);