1 /* automaton - representation of büchi automaton */
3 /* Copyright (c) 2011-2018. The SimGrid Team. All rights reserved. */
5 /* This program is free software; you can redistribute it and/or modify it
6 * under the terms of the license (GNU LGPL) which comes with this package. */
8 #include "xbt/automaton.h"
9 #include <stdio.h> /* printf */
11 #include <xbt/sysdep.h>
13 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(xbt_automaton, xbt, "Automaton");
15 struct xbt_automaton_propositional_symbol{
17 /** Callback used to evaluate the value of the symbol */
18 int (*callback)(void*);
19 /** Additional data for the callback.
20 Alternatively it can be used as a pointer to the data. */
22 /** Optional callback used to free the data field */
23 void (*free_function)(void*);
26 xbt_automaton_t xbt_automaton_new(void){
27 xbt_automaton_t automaton = xbt_new0(struct xbt_automaton, 1);
28 automaton->states = xbt_dynar_new(sizeof(xbt_automaton_state_t), xbt_automaton_state_free_voidp);
29 automaton->transitions = xbt_dynar_new(sizeof(xbt_automaton_transition_t), xbt_automaton_transition_free_voidp);
30 automaton->propositional_symbols = xbt_dynar_new(sizeof(xbt_automaton_propositional_symbol_t), xbt_automaton_propositional_symbol_free_voidp);
34 xbt_automaton_state_t xbt_automaton_state_new(xbt_automaton_t a, int type, char* id){
35 xbt_automaton_state_t state = xbt_new0(struct xbt_automaton_state, 1);
37 state->id = xbt_strdup(id);
38 state->in = xbt_dynar_new(sizeof(xbt_automaton_transition_t), xbt_automaton_transition_free_voidp);
39 state->out = xbt_dynar_new(sizeof(xbt_automaton_transition_t), xbt_automaton_transition_free_voidp);
40 xbt_dynar_push(a->states, &state);
44 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){
45 xbt_automaton_transition_t 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 = xbt_new0(struct xbt_automaton_exp_label, 1);
62 xbt_automaton_exp_label_t left;
63 xbt_automaton_exp_label_t right;
64 xbt_automaton_exp_label_t exp_not;
70 left = va_arg(ap, xbt_automaton_exp_label_t);
71 right = va_arg(ap, xbt_automaton_exp_label_t);
72 label->u.or_and.left_exp = left;
73 label->u.or_and.right_exp = right;
76 left = va_arg(ap, xbt_automaton_exp_label_t);
77 right = va_arg(ap, xbt_automaton_exp_label_t);
78 label->u.or_and.left_exp = left;
79 label->u.or_and.right_exp = right;
82 exp_not = va_arg(ap, xbt_automaton_exp_label_t);
83 label->u.exp_not = exp_not;
86 p = va_arg(ap, char*);
87 label->u.predicat = xbt_strdup(p);
92 XBT_DEBUG("Invalid type: %d", type);
101 xbt_dynar_t xbt_automaton_get_states(xbt_automaton_t a){
105 xbt_dynar_t xbt_automaton_get_transitions(xbt_automaton_t a){
106 return a->transitions;
109 xbt_automaton_transition_t xbt_automaton_get_transition(XBT_ATTRIB_UNUSED xbt_automaton_t a, xbt_automaton_state_t src,
110 xbt_automaton_state_t dst)
112 xbt_automaton_transition_t transition;
114 xbt_dynar_foreach(src->out, cursor, transition){
115 if((transition->src == src) && (transition->dst == dst))
121 xbt_automaton_state_t xbt_automaton_transition_get_source(xbt_automaton_transition_t t){
125 xbt_automaton_state_t xbt_automaton_transition_get_destination(xbt_automaton_transition_t t){
129 void xbt_automaton_transition_set_source(xbt_automaton_transition_t t, xbt_automaton_state_t src){
131 xbt_dynar_push(src->out,&t);
134 void xbt_automaton_transition_set_destination(xbt_automaton_transition_t t, xbt_automaton_state_t dst){
136 xbt_dynar_push(dst->in,&t);
139 xbt_dynar_t xbt_automaton_state_get_out_transitions(xbt_automaton_state_t s){
143 xbt_dynar_t xbt_automaton_state_get_in_transitions(xbt_automaton_state_t s){
147 xbt_automaton_state_t xbt_automaton_state_exists(xbt_automaton_t a, char *id){
148 xbt_automaton_state_t state = NULL;
149 unsigned int cursor = 0;
150 xbt_dynar_foreach(a->states, cursor, state){
151 if(strcmp(state->id, id)==0)
157 void xbt_automaton_display(xbt_automaton_t a){
159 xbt_automaton_state_t state = NULL;
161 printf("\n\nCurrent state: %s\n", a->current_state->id);
163 printf("\nStates' List: %lu\n\n", xbt_dynar_length(a->states));
165 xbt_dynar_foreach(a->states, cursor, state)
166 printf("ID: %s, type: %d\n", state->id, state->type);
168 xbt_automaton_transition_t transition;
169 printf("\nTransitions: %lu\n\n", xbt_dynar_length(a->transitions));
171 xbt_dynar_foreach(a->transitions, cursor, transition){
173 xbt_automaton_exp_label_display(transition->label);
174 printf(", %s -> %s\n", transition->src->id, transition->dst->id);
178 void xbt_automaton_exp_label_display(xbt_automaton_exp_label_t label){
182 xbt_automaton_exp_label_display(label->u.or_and.left_exp);
184 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);
193 xbt_automaton_exp_label_display(label->u.exp_not);
196 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,
219 xbt_automaton_propositional_symbol_t prop_symb = xbt_new0(struct xbt_automaton_propositional_symbol, 1);
220 prop_symb->pred = xbt_strdup(id);
221 prop_symb->callback = &call_simple_function;
222 prop_symb->data = fct;
223 prop_symb->free_function = NULL;
224 xbt_dynar_push(a->propositional_symbols, &prop_symb);
228 XBT_PUBLIC xbt_automaton_propositional_symbol_t xbt_automaton_propositional_symbol_new_pointer(xbt_automaton_t a,
232 xbt_automaton_propositional_symbol_t prop_symb = xbt_new0(struct xbt_automaton_propositional_symbol, 1);
233 prop_symb->pred = xbt_strdup(id);
234 prop_symb->callback = NULL;
235 prop_symb->data = value;
236 prop_symb->free_function = NULL;
237 xbt_dynar_push(a->propositional_symbols, &prop_symb);
241 XBT_PUBLIC xbt_automaton_propositional_symbol_t xbt_automaton_propositional_symbol_new_callback(
242 xbt_automaton_t a, const char* id, xbt_automaton_propositional_symbol_callback_type callback, void* data,
243 xbt_automaton_propositional_symbol_free_function_type free_function)
245 xbt_automaton_propositional_symbol_t prop_symb = xbt_new0(struct xbt_automaton_propositional_symbol, 1);
246 prop_symb->pred = xbt_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
263 xbt_automaton_propositional_symbol_get_callback(xbt_automaton_propositional_symbol_t symbol)
265 return symbol->callback;
268 XBT_PUBLIC void* xbt_automaton_propositional_symbol_get_data(xbt_automaton_propositional_symbol_t symbol)
273 XBT_PUBLIC const char* xbt_automaton_propositional_symbol_get_name(xbt_automaton_propositional_symbol_t symbol)
278 int xbt_automaton_state_compare(xbt_automaton_state_t s1, xbt_automaton_state_t s2){
280 /* single id for each state, id and type sufficient for comparison*/
282 if(strcmp(s1->id, s2->id))
285 if(s1->type != s2->type)
292 int xbt_automaton_transition_compare(const void *t1, const void *t2){
294 if(xbt_automaton_state_compare(((xbt_automaton_transition_t)t1)->src, ((xbt_automaton_transition_t)t2)->src))
297 if(xbt_automaton_state_compare(((xbt_automaton_transition_t)t1)->dst, ((xbt_automaton_transition_t)t2)->dst))
300 if(xbt_automaton_exp_label_compare(((xbt_automaton_transition_t)t1)->label,((xbt_automaton_transition_t)t2)->label))
307 int xbt_automaton_exp_label_compare(xbt_automaton_exp_label_t l1, xbt_automaton_exp_label_t l2){
309 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);
321 return xbt_automaton_exp_label_compare(l1->u.exp_not, l2->u.exp_not);
324 return (strcmp(l1->u.predicat, l2->u.predicat));
335 int xbt_automaton_propositional_symbols_compare_value(xbt_dynar_t s1, xbt_dynar_t s2){
336 unsigned int nb_elem = xbt_dynar_length(s1);
338 for (unsigned int cursor = 0; cursor < nb_elem; cursor++) {
339 int* iptr1 = xbt_dynar_get_ptr(s1, cursor);
340 int* iptr2 = xbt_dynar_get_ptr(s2, cursor);
348 static void xbt_automaton_transition_free(xbt_automaton_transition_t t);
349 static void xbt_automaton_exp_label_free(xbt_automaton_exp_label_t e);
350 static void xbt_automaton_propositional_symbol_free(xbt_automaton_propositional_symbol_t ps);
352 void xbt_automaton_state_free(xbt_automaton_state_t s){
355 xbt_dynar_free(&(s->in));
356 xbt_dynar_free(&(s->out));
361 void xbt_automaton_state_free_voidp(void *s){
362 xbt_automaton_state_free((xbt_automaton_state_t) * (void **) s);
365 static void xbt_automaton_transition_free(xbt_automaton_transition_t t){
367 xbt_automaton_exp_label_free(t->label);
373 void xbt_automaton_transition_free_voidp(void *t){
374 xbt_automaton_transition_free((xbt_automaton_transition_t) * (void **) t);
377 static void xbt_automaton_exp_label_free(xbt_automaton_exp_label_t e){
382 xbt_automaton_exp_label_free(e->u.or_and.left_exp);
383 xbt_automaton_exp_label_free(e->u.or_and.right_exp);
386 xbt_automaton_exp_label_free(e->u.exp_not);
389 xbt_free(e->u.predicat);
399 void xbt_automaton_exp_label_free_voidp(void *e){
400 xbt_automaton_exp_label_free((xbt_automaton_exp_label_t) * (void **) e);
403 static void xbt_automaton_propositional_symbol_free(xbt_automaton_propositional_symbol_t ps){
411 void xbt_automaton_propositional_symbol_free_voidp(void *ps){
412 xbt_automaton_propositional_symbol_t symbol = (xbt_automaton_propositional_symbol_t) * (void **) ps;
413 if (symbol->free_function)
414 symbol->free_function(symbol->data);
415 xbt_automaton_propositional_symbol_free(symbol);
418 void xbt_automaton_free(xbt_automaton_t a){
420 xbt_dynar_free(&(a->propositional_symbols));
421 xbt_dynar_free(&(a->transitions));
422 xbt_dynar_free(&(a->states));
423 xbt_automaton_state_free(a->current_state);