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 */
10 #include <xbt/sysdep.h>
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(void){
24 xbt_automaton_t automaton = xbt_new0(struct xbt_automaton, 1);
25 automaton->states = xbt_dynar_new(sizeof(xbt_automaton_state_t), xbt_automaton_state_free_voidp);
26 automaton->transitions = xbt_dynar_new(sizeof(xbt_automaton_transition_t), xbt_automaton_transition_free_voidp);
27 automaton->propositional_symbols = xbt_dynar_new(sizeof(xbt_automaton_propositional_symbol_t), xbt_automaton_propositional_symbol_free_voidp);
31 xbt_automaton_state_t xbt_automaton_state_new(xbt_automaton_t a, int type, char* id){
32 xbt_automaton_state_t state = xbt_new0(struct xbt_automaton_state, 1);
34 state->id = xbt_strdup(id);
35 state->in = xbt_dynar_new(sizeof(xbt_automaton_transition_t), xbt_automaton_transition_free_voidp);
36 state->out = xbt_dynar_new(sizeof(xbt_automaton_transition_t), xbt_automaton_transition_free_voidp);
37 xbt_dynar_push(a->states, &state);
41 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){
42 xbt_automaton_transition_t transition = xbt_new0(struct xbt_automaton_transition, 1);
44 xbt_dynar_push(src->out, &transition);
45 transition->src = src;
48 xbt_dynar_push(dst->in, &transition);
49 transition->dst = dst;
51 transition->label = label;
52 xbt_dynar_push(a->transitions, &transition);
56 xbt_automaton_exp_label_t xbt_automaton_exp_label_new_or(xbt_automaton_exp_label_t left,
57 xbt_automaton_exp_label_t right)
59 xbt_automaton_exp_label_t label = xbt_new0(struct xbt_automaton_exp_label, 1);
61 label->u.or_and.left_exp = left;
62 label->u.or_and.right_exp = right;
66 xbt_automaton_exp_label_t xbt_automaton_exp_label_new_and(xbt_automaton_exp_label_t left,
67 xbt_automaton_exp_label_t right)
69 xbt_automaton_exp_label_t label = xbt_new0(struct xbt_automaton_exp_label, 1);
70 label->type = AUT_AND;
71 label->u.or_and.left_exp = left;
72 label->u.or_and.right_exp = right;
76 xbt_automaton_exp_label_t xbt_automaton_exp_label_new_not(xbt_automaton_exp_label_t exp_not)
78 xbt_automaton_exp_label_t label = xbt_new0(struct xbt_automaton_exp_label, 1);
79 label->type = AUT_NOT;
80 label->u.exp_not = exp_not;
84 xbt_automaton_exp_label_t xbt_automaton_exp_label_new_predicat(char* p)
86 xbt_automaton_exp_label_t label = xbt_new0(struct xbt_automaton_exp_label, 1);
87 label->type = AUT_PREDICAT;
88 label->u.predicat = xbt_strdup(p);
92 xbt_automaton_exp_label_t xbt_automaton_exp_label_new_one(void)
94 xbt_automaton_exp_label_t label = xbt_new0(struct xbt_automaton_exp_label, 1);
95 label->type = AUT_ONE;
99 xbt_dynar_t xbt_automaton_get_states(xbt_automaton_t a){
103 xbt_dynar_t xbt_automaton_get_transitions(xbt_automaton_t a){
104 return a->transitions;
107 xbt_automaton_transition_t xbt_automaton_get_transition(XBT_ATTRIB_UNUSED xbt_automaton_t a, xbt_automaton_state_t src,
108 xbt_automaton_state_t dst)
110 xbt_automaton_transition_t transition;
112 xbt_dynar_foreach(src->out, cursor, transition){
113 if((transition->src == src) && (transition->dst == dst))
119 xbt_automaton_state_t xbt_automaton_transition_get_source(xbt_automaton_transition_t t){
123 xbt_automaton_state_t xbt_automaton_transition_get_destination(xbt_automaton_transition_t t){
127 void xbt_automaton_transition_set_source(xbt_automaton_transition_t t, xbt_automaton_state_t src){
129 xbt_dynar_push(src->out,&t);
132 void xbt_automaton_transition_set_destination(xbt_automaton_transition_t t, xbt_automaton_state_t dst){
134 xbt_dynar_push(dst->in,&t);
137 xbt_dynar_t xbt_automaton_state_get_out_transitions(xbt_automaton_state_t s){
141 xbt_dynar_t xbt_automaton_state_get_in_transitions(xbt_automaton_state_t s){
145 xbt_automaton_state_t xbt_automaton_state_exists(xbt_automaton_t a, char *id){
146 xbt_automaton_state_t state = NULL;
147 unsigned int cursor = 0;
148 xbt_dynar_foreach(a->states, cursor, state){
149 if(strcmp(state->id, id)==0)
155 void xbt_automaton_display(xbt_automaton_t a){
157 xbt_automaton_state_t state = NULL;
159 printf("\n\nCurrent state: %s\n", a->current_state->id);
161 printf("\nStates' List: %lu\n\n", xbt_dynar_length(a->states));
163 xbt_dynar_foreach(a->states, cursor, state)
164 printf("ID: %s, type: %d\n", state->id, state->type);
166 xbt_automaton_transition_t transition;
167 printf("\nTransitions: %lu\n\n", xbt_dynar_length(a->transitions));
169 xbt_dynar_foreach(a->transitions, cursor, transition){
171 xbt_automaton_exp_label_display(transition->label);
172 printf(", %s -> %s\n", transition->src->id, transition->dst->id);
176 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);
185 xbt_automaton_exp_label_display(label->u.or_and.left_exp);
187 xbt_automaton_exp_label_display(label->u.or_and.right_exp);
191 xbt_automaton_exp_label_display(label->u.exp_not);
194 printf("%s", label->u.predicat);
205 xbt_automaton_state_t xbt_automaton_get_current_state(xbt_automaton_t a){
206 return a->current_state;
209 static int call_simple_function(int function(void) )
214 xbt_automaton_propositional_symbol_t xbt_automaton_propositional_symbol_new(xbt_automaton_t a, const char* id,
217 xbt_automaton_propositional_symbol_t prop_symb = xbt_new0(struct xbt_automaton_propositional_symbol, 1);
218 prop_symb->pred = xbt_strdup(id);
219 prop_symb->callback = ((int (*)(void *))&call_simple_function);
220 prop_symb->data = (void*)&fct;
221 prop_symb->free_function = NULL;
222 xbt_dynar_push(a->propositional_symbols, &prop_symb);
226 XBT_PUBLIC xbt_automaton_propositional_symbol_t xbt_automaton_propositional_symbol_new_pointer(xbt_automaton_t a,
230 xbt_automaton_propositional_symbol_t prop_symb = xbt_new0(struct xbt_automaton_propositional_symbol, 1);
231 prop_symb->pred = xbt_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, xbt_automaton_propositional_symbol_callback_type callback, void* data,
241 xbt_automaton_propositional_symbol_free_function_type free_function)
243 xbt_automaton_propositional_symbol_t prop_symb = xbt_new0(struct xbt_automaton_propositional_symbol, 1);
244 prop_symb->pred = xbt_strdup(id);
245 prop_symb->callback = callback;
246 prop_symb->data = data;
247 prop_symb->free_function = free_function;
248 xbt_dynar_push(a->propositional_symbols, &prop_symb);
252 XBT_PUBLIC int xbt_automaton_propositional_symbol_evaluate(xbt_automaton_propositional_symbol_t symbol)
254 if (symbol->callback)
255 return (symbol->callback)(symbol->data);
257 return *(int*) symbol->data;
260 XBT_PUBLIC xbt_automaton_propositional_symbol_callback_type
261 xbt_automaton_propositional_symbol_get_callback(xbt_automaton_propositional_symbol_t symbol)
263 return symbol->callback;
266 XBT_PUBLIC void* xbt_automaton_propositional_symbol_get_data(xbt_automaton_propositional_symbol_t symbol)
271 XBT_PUBLIC const char* xbt_automaton_propositional_symbol_get_name(xbt_automaton_propositional_symbol_t symbol)
276 int xbt_automaton_state_compare(xbt_automaton_state_t s1, xbt_automaton_state_t s2){
277 /* single id for each state, id and type sufficient for comparison*/
278 return (strcmp(s1->id, s2->id) != 0) || (s1->type != s2->type);
281 int xbt_automaton_transition_compare(xbt_automaton_transition_t t1, xbt_automaton_transition_t t2)
283 return xbt_automaton_state_compare(t1->src, t2->src) || xbt_automaton_state_compare(t1->dst, t2->dst) ||
284 xbt_automaton_exp_label_compare(t1->label, t2->label);
287 int xbt_automaton_exp_label_compare(xbt_automaton_exp_label_t l1, xbt_automaton_exp_label_t l2){
289 if(l1->type != l2->type)
296 res = xbt_automaton_exp_label_compare(l1->u.or_and.left_exp, l2->u.or_and.left_exp) ||
297 xbt_automaton_exp_label_compare(l1->u.or_and.right_exp, l2->u.or_and.right_exp);
300 res = xbt_automaton_exp_label_compare(l1->u.exp_not, l2->u.exp_not);
303 res = strcmp(l1->u.predicat, l2->u.predicat) != 0;
315 int xbt_automaton_propositional_symbols_compare_value(xbt_dynar_t s1, xbt_dynar_t s2){
316 unsigned int nb_elem = xbt_dynar_length(s1);
318 for (unsigned int cursor = 0; cursor < nb_elem; cursor++) {
319 const int* iptr1 = xbt_dynar_get_ptr(s1, cursor);
320 const int* iptr2 = xbt_dynar_get_ptr(s2, cursor);
328 static void xbt_automaton_transition_free(xbt_automaton_transition_t t);
329 static void xbt_automaton_exp_label_free(xbt_automaton_exp_label_t e);
330 static void xbt_automaton_propositional_symbol_free(xbt_automaton_propositional_symbol_t ps);
332 void xbt_automaton_state_free(xbt_automaton_state_t s){
335 xbt_dynar_free(&(s->in));
336 xbt_dynar_free(&(s->out));
341 void xbt_automaton_state_free_voidp(void *s){
342 xbt_automaton_state_free((xbt_automaton_state_t) * (void **) s);
345 static void xbt_automaton_transition_free(xbt_automaton_transition_t t){
347 xbt_automaton_exp_label_free(t->label);
353 void xbt_automaton_transition_free_voidp(void *t){
354 xbt_automaton_transition_free((xbt_automaton_transition_t) * (void **) t);
357 static void xbt_automaton_exp_label_free(xbt_automaton_exp_label_t e){
362 xbt_automaton_exp_label_free(e->u.or_and.left_exp);
363 xbt_automaton_exp_label_free(e->u.or_and.right_exp);
366 xbt_automaton_exp_label_free(e->u.exp_not);
369 xbt_free(e->u.predicat);
379 void xbt_automaton_exp_label_free_voidp(void *e){
380 xbt_automaton_exp_label_free((xbt_automaton_exp_label_t) * (void **) e);
383 static void xbt_automaton_propositional_symbol_free(xbt_automaton_propositional_symbol_t ps){
391 void xbt_automaton_propositional_symbol_free_voidp(void *ps){
392 xbt_automaton_propositional_symbol_t symbol = (xbt_automaton_propositional_symbol_t) * (void **) ps;
393 if (symbol->free_function)
394 symbol->free_function(symbol->data);
395 xbt_automaton_propositional_symbol_free(symbol);
398 void xbt_automaton_free(xbt_automaton_t a){
400 xbt_dynar_free(&(a->propositional_symbols));
401 xbt_dynar_free(&(a->transitions));
402 xbt_dynar_free(&(a->states));
403 xbt_automaton_state_free(a->current_state);