1 /* automaton - representation of büchi automaton */
3 /* Copyright (c) 2011-2019. 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_or(xbt_automaton_exp_label_t left,
60 xbt_automaton_exp_label_t right)
62 xbt_automaton_exp_label_t label = xbt_new0(struct xbt_automaton_exp_label, 1);
64 label->u.or_and.left_exp = left;
65 label->u.or_and.right_exp = right;
69 xbt_automaton_exp_label_t xbt_automaton_exp_label_new_and(xbt_automaton_exp_label_t left,
70 xbt_automaton_exp_label_t right)
72 xbt_automaton_exp_label_t label = xbt_new0(struct xbt_automaton_exp_label, 1);
73 label->type = AUT_AND;
74 label->u.or_and.left_exp = left;
75 label->u.or_and.right_exp = right;
79 xbt_automaton_exp_label_t xbt_automaton_exp_label_new_not(xbt_automaton_exp_label_t exp_not)
81 xbt_automaton_exp_label_t label = xbt_new0(struct xbt_automaton_exp_label, 1);
82 label->type = AUT_NOT;
83 label->u.exp_not = exp_not;
87 xbt_automaton_exp_label_t xbt_automaton_exp_label_new_predicat(char* p)
89 xbt_automaton_exp_label_t label = xbt_new0(struct xbt_automaton_exp_label, 1);
90 label->type = AUT_PREDICAT;
91 label->u.predicat = xbt_strdup(p);
95 xbt_automaton_exp_label_t xbt_automaton_exp_label_new_one(void)
97 xbt_automaton_exp_label_t label = xbt_new0(struct xbt_automaton_exp_label, 1);
98 label->type = AUT_ONE;
102 xbt_dynar_t xbt_automaton_get_states(xbt_automaton_t a){
106 xbt_dynar_t xbt_automaton_get_transitions(xbt_automaton_t a){
107 return a->transitions;
110 xbt_automaton_transition_t xbt_automaton_get_transition(XBT_ATTRIB_UNUSED xbt_automaton_t a, xbt_automaton_state_t src,
111 xbt_automaton_state_t dst)
113 xbt_automaton_transition_t transition;
115 xbt_dynar_foreach(src->out, cursor, transition){
116 if((transition->src == src) && (transition->dst == dst))
122 xbt_automaton_state_t xbt_automaton_transition_get_source(xbt_automaton_transition_t t){
126 xbt_automaton_state_t xbt_automaton_transition_get_destination(xbt_automaton_transition_t t){
130 void xbt_automaton_transition_set_source(xbt_automaton_transition_t t, xbt_automaton_state_t src){
132 xbt_dynar_push(src->out,&t);
135 void xbt_automaton_transition_set_destination(xbt_automaton_transition_t t, xbt_automaton_state_t dst){
137 xbt_dynar_push(dst->in,&t);
140 xbt_dynar_t xbt_automaton_state_get_out_transitions(xbt_automaton_state_t s){
144 xbt_dynar_t xbt_automaton_state_get_in_transitions(xbt_automaton_state_t s){
148 xbt_automaton_state_t xbt_automaton_state_exists(xbt_automaton_t a, char *id){
149 xbt_automaton_state_t state = NULL;
150 unsigned int cursor = 0;
151 xbt_dynar_foreach(a->states, cursor, state){
152 if(strcmp(state->id, id)==0)
158 void xbt_automaton_display(xbt_automaton_t a){
160 xbt_automaton_state_t state = NULL;
162 printf("\n\nCurrent state: %s\n", a->current_state->id);
164 printf("\nStates' List: %lu\n\n", xbt_dynar_length(a->states));
166 xbt_dynar_foreach(a->states, cursor, state)
167 printf("ID: %s, type: %d\n", state->id, state->type);
169 xbt_automaton_transition_t transition;
170 printf("\nTransitions: %lu\n\n", xbt_dynar_length(a->transitions));
172 xbt_dynar_foreach(a->transitions, cursor, transition){
174 xbt_automaton_exp_label_display(transition->label);
175 printf(", %s -> %s\n", transition->src->id, transition->dst->id);
179 void xbt_automaton_exp_label_display(xbt_automaton_exp_label_t label){
183 xbt_automaton_exp_label_display(label->u.or_and.left_exp);
185 xbt_automaton_exp_label_display(label->u.or_and.right_exp);
188 xbt_automaton_exp_label_display(label->u.or_and.left_exp);
190 xbt_automaton_exp_label_display(label->u.or_and.right_exp);
194 xbt_automaton_exp_label_display(label->u.exp_not);
197 printf("%s", label->u.predicat);
208 xbt_automaton_state_t xbt_automaton_get_current_state(xbt_automaton_t a){
209 return a->current_state;
212 static int call_simple_function(void* function)
214 return ((int (*)(void)) function)();
217 xbt_automaton_propositional_symbol_t xbt_automaton_propositional_symbol_new(xbt_automaton_t a, const char* id,
220 xbt_automaton_propositional_symbol_t prop_symb = xbt_new0(struct xbt_automaton_propositional_symbol, 1);
221 prop_symb->pred = xbt_strdup(id);
222 prop_symb->callback = &call_simple_function;
223 prop_symb->data = fct;
224 prop_symb->free_function = NULL;
225 xbt_dynar_push(a->propositional_symbols, &prop_symb);
229 XBT_PUBLIC xbt_automaton_propositional_symbol_t xbt_automaton_propositional_symbol_new_pointer(xbt_automaton_t a,
233 xbt_automaton_propositional_symbol_t prop_symb = xbt_new0(struct xbt_automaton_propositional_symbol, 1);
234 prop_symb->pred = xbt_strdup(id);
235 prop_symb->callback = NULL;
236 prop_symb->data = value;
237 prop_symb->free_function = NULL;
238 xbt_dynar_push(a->propositional_symbols, &prop_symb);
242 XBT_PUBLIC xbt_automaton_propositional_symbol_t xbt_automaton_propositional_symbol_new_callback(
243 xbt_automaton_t a, const char* id, xbt_automaton_propositional_symbol_callback_type callback, void* data,
244 xbt_automaton_propositional_symbol_free_function_type free_function)
246 xbt_automaton_propositional_symbol_t prop_symb = xbt_new0(struct xbt_automaton_propositional_symbol, 1);
247 prop_symb->pred = xbt_strdup(id);
248 prop_symb->callback = callback;
249 prop_symb->data = data;
250 prop_symb->free_function = free_function;
251 xbt_dynar_push(a->propositional_symbols, &prop_symb);
255 XBT_PUBLIC int xbt_automaton_propositional_symbol_evaluate(xbt_automaton_propositional_symbol_t symbol)
257 if (symbol->callback)
258 return (symbol->callback)(symbol->data);
260 return *(int*) symbol->data;
263 XBT_PUBLIC xbt_automaton_propositional_symbol_callback_type
264 xbt_automaton_propositional_symbol_get_callback(xbt_automaton_propositional_symbol_t symbol)
266 return symbol->callback;
269 XBT_PUBLIC void* xbt_automaton_propositional_symbol_get_data(xbt_automaton_propositional_symbol_t symbol)
274 XBT_PUBLIC const char* xbt_automaton_propositional_symbol_get_name(xbt_automaton_propositional_symbol_t symbol)
279 int xbt_automaton_state_compare(xbt_automaton_state_t s1, xbt_automaton_state_t s2){
281 /* single id for each state, id and type sufficient for comparison*/
283 if(strcmp(s1->id, s2->id))
286 if(s1->type != s2->type)
293 int xbt_automaton_transition_compare(const void *t1, const void *t2){
295 if(xbt_automaton_state_compare(((xbt_automaton_transition_t)t1)->src, ((xbt_automaton_transition_t)t2)->src))
298 if(xbt_automaton_state_compare(((xbt_automaton_transition_t)t1)->dst, ((xbt_automaton_transition_t)t2)->dst))
301 if(xbt_automaton_exp_label_compare(((xbt_automaton_transition_t)t1)->label,((xbt_automaton_transition_t)t2)->label))
308 int xbt_automaton_exp_label_compare(xbt_automaton_exp_label_t l1, xbt_automaton_exp_label_t l2){
310 if(l1->type != l2->type)
317 if(xbt_automaton_exp_label_compare(l1->u.or_and.left_exp, l2->u.or_and.left_exp))
320 res = xbt_automaton_exp_label_compare(l1->u.or_and.right_exp, l2->u.or_and.right_exp);
323 res = xbt_automaton_exp_label_compare(l1->u.exp_not, l2->u.exp_not);
326 res = strcmp(l1->u.predicat, l2->u.predicat);
338 int xbt_automaton_propositional_symbols_compare_value(xbt_dynar_t s1, xbt_dynar_t s2){
339 unsigned int nb_elem = xbt_dynar_length(s1);
341 for (unsigned int cursor = 0; cursor < nb_elem; cursor++) {
342 int* iptr1 = xbt_dynar_get_ptr(s1, cursor);
343 int* iptr2 = xbt_dynar_get_ptr(s2, cursor);
351 static void xbt_automaton_transition_free(xbt_automaton_transition_t t);
352 static void xbt_automaton_exp_label_free(xbt_automaton_exp_label_t e);
353 static void xbt_automaton_propositional_symbol_free(xbt_automaton_propositional_symbol_t ps);
355 void xbt_automaton_state_free(xbt_automaton_state_t s){
358 xbt_dynar_free(&(s->in));
359 xbt_dynar_free(&(s->out));
364 void xbt_automaton_state_free_voidp(void *s){
365 xbt_automaton_state_free((xbt_automaton_state_t) * (void **) s);
368 static void xbt_automaton_transition_free(xbt_automaton_transition_t t){
370 xbt_automaton_exp_label_free(t->label);
376 void xbt_automaton_transition_free_voidp(void *t){
377 xbt_automaton_transition_free((xbt_automaton_transition_t) * (void **) t);
380 static void xbt_automaton_exp_label_free(xbt_automaton_exp_label_t e){
385 xbt_automaton_exp_label_free(e->u.or_and.left_exp);
386 xbt_automaton_exp_label_free(e->u.or_and.right_exp);
389 xbt_automaton_exp_label_free(e->u.exp_not);
392 xbt_free(e->u.predicat);
402 void xbt_automaton_exp_label_free_voidp(void *e){
403 xbt_automaton_exp_label_free((xbt_automaton_exp_label_t) * (void **) e);
406 static void xbt_automaton_propositional_symbol_free(xbt_automaton_propositional_symbol_t ps){
414 void xbt_automaton_propositional_symbol_free_voidp(void *ps){
415 xbt_automaton_propositional_symbol_t symbol = (xbt_automaton_propositional_symbol_t) * (void **) ps;
416 if (symbol->free_function)
417 symbol->free_function(symbol->data);
418 xbt_automaton_propositional_symbol_free(symbol);
421 void xbt_automaton_free(xbt_automaton_t a){
423 xbt_dynar_free(&(a->propositional_symbols));
424 xbt_dynar_free(&(a->transitions));
425 xbt_dynar_free(&(a->states));
426 xbt_automaton_state_free(a->current_state);