1 /* automaton - representation of büchi automaton */
3 /* Copyright (c) 2011-2015. 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 = xbt_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 = xbt_strdup(p);
96 xbt_dynar_t xbt_automaton_get_states(xbt_automaton_t a){
100 xbt_dynar_t xbt_automaton_get_transitions(xbt_automaton_t a){
101 return a->transitions;
104 xbt_automaton_transition_t xbt_automaton_get_transition(xbt_automaton_t a, xbt_automaton_state_t src, xbt_automaton_state_t dst){
105 xbt_automaton_transition_t transition;
107 xbt_dynar_foreach(src->out, cursor, transition){
108 if((transition->src == src) && (transition->dst == dst))
114 xbt_automaton_state_t xbt_automaton_transition_get_source(xbt_automaton_transition_t t){
118 xbt_automaton_state_t xbt_automaton_transition_get_destination(xbt_automaton_transition_t t){
122 void xbt_automaton_transition_set_source(xbt_automaton_transition_t t, xbt_automaton_state_t src){
124 xbt_dynar_push(src->out,&t);
127 void xbt_automaton_transition_set_destination(xbt_automaton_transition_t t, xbt_automaton_state_t dst){
129 xbt_dynar_push(dst->in,&t);
132 xbt_dynar_t xbt_automaton_state_get_out_transitions(xbt_automaton_state_t s){
136 xbt_dynar_t xbt_automaton_state_get_in_transitions(xbt_automaton_state_t s){
140 xbt_automaton_state_t xbt_automaton_state_exists(xbt_automaton_t a, char *id){
141 xbt_automaton_state_t state = NULL;
142 unsigned int cursor = 0;
143 xbt_dynar_foreach(a->states, cursor, state){
144 if(strcmp(state->id, id)==0)
150 void xbt_automaton_display(xbt_automaton_t a){
152 xbt_automaton_state_t state = NULL;
154 printf("\n\nCurrent state: %s\n", a->current_state->id);
156 printf("\nStates' List: %lu\n\n", xbt_dynar_length(a->states));
158 xbt_dynar_foreach(a->states, cursor, state)
159 printf("ID: %s, type: %d\n", state->id, state->type);
161 xbt_automaton_transition_t transition;
162 printf("\nTransitions: %lu\n\n", xbt_dynar_length(a->transitions));
164 xbt_dynar_foreach(a->transitions, cursor, transition){
166 xbt_automaton_exp_label_display(transition->label);
167 printf(", %s -> %s\n", transition->src->id, transition->dst->id);
171 void xbt_automaton_exp_label_display(xbt_automaton_exp_label_t label){
175 xbt_automaton_exp_label_display(label->u.or_and.left_exp);
177 xbt_automaton_exp_label_display(label->u.or_and.right_exp);
182 xbt_automaton_exp_label_display(label->u.or_and.left_exp);
184 xbt_automaton_exp_label_display(label->u.or_and.right_exp);
189 xbt_automaton_exp_label_display(label->u.exp_not);
193 printf("(%s)",label->u.predicat);
201 xbt_automaton_state_t xbt_automaton_get_current_state(xbt_automaton_t a){
202 return a->current_state;
205 static int call_simple_function(void* function)
207 return ((int (*)(void)) function)();
210 xbt_automaton_propositional_symbol_t xbt_automaton_propositional_symbol_new(xbt_automaton_t a, const char* id, int(*fct)(void)){
211 xbt_automaton_propositional_symbol_t prop_symb = NULL;
212 prop_symb = xbt_new0(struct xbt_automaton_propositional_symbol, 1);
213 prop_symb->pred = xbt_strdup(id);
214 prop_symb->callback = call_simple_function;
215 prop_symb->data = fct;
216 prop_symb->free_function = NULL;
217 xbt_dynar_push(a->propositional_symbols, &prop_symb);
221 XBT_PUBLIC(xbt_automaton_propositional_symbol_t) xbt_automaton_propositional_symbol_new_pointer(xbt_automaton_t a, const char* id, int* value)
223 xbt_automaton_propositional_symbol_t prop_symb = NULL;
224 prop_symb = xbt_new0(struct xbt_automaton_propositional_symbol, 1);
225 prop_symb->pred = xbt_strdup(id);
226 prop_symb->callback = NULL;
227 prop_symb->data = value;
228 prop_symb->free_function = NULL;
229 xbt_dynar_push(a->propositional_symbols, &prop_symb);
233 XBT_PUBLIC(xbt_automaton_propositional_symbol_t) xbt_automaton_propositional_symbol_new_callback(
234 xbt_automaton_t a, const char* id,
235 xbt_automaton_propositional_symbol_callback_type callback,
236 void* data, xbt_automaton_propositional_symbol_free_function_type free_function)
238 xbt_automaton_propositional_symbol_t prop_symb = NULL;
239 prop_symb = xbt_new0(struct xbt_automaton_propositional_symbol, 1);
240 prop_symb->pred = xbt_strdup(id);
241 prop_symb->callback = callback;
242 prop_symb->data = data;
243 prop_symb->free_function = free_function;
244 xbt_dynar_push(a->propositional_symbols, &prop_symb);
248 XBT_PUBLIC(int) xbt_automaton_propositional_symbol_evaluate(xbt_automaton_propositional_symbol_t symbol)
250 if (symbol->callback)
251 return (symbol->callback)(symbol->data);
253 return *(int*) symbol->data;
256 XBT_PUBLIC(xbt_automaton_propositional_symbol_callback_type) xbt_automaton_propositional_symbol_get_callback(xbt_automaton_propositional_symbol_t symbol)
258 return symbol->callback;
261 XBT_PUBLIC(void*) xbt_automaton_propositional_symbol_get_data(xbt_automaton_propositional_symbol_t symbol)
266 XBT_PUBLIC(const char*) xbt_automaton_propositional_symbol_get_name(xbt_automaton_propositional_symbol_t symbol)
271 int xbt_automaton_state_compare(xbt_automaton_state_t s1, xbt_automaton_state_t s2){
273 /* single id for each state, id and type sufficient for comparison*/
275 if(strcmp(s1->id, s2->id))
278 if(s1->type != s2->type)
285 int xbt_automaton_transition_compare(const void *t1, const void *t2){
287 if(xbt_automaton_state_compare(((xbt_automaton_transition_t)t1)->src, ((xbt_automaton_transition_t)t2)->src))
290 if(xbt_automaton_state_compare(((xbt_automaton_transition_t)t1)->dst, ((xbt_automaton_transition_t)t2)->dst))
293 if(xbt_automaton_exp_label_compare(((xbt_automaton_transition_t)t1)->label,((xbt_automaton_transition_t)t2)->label))
300 int xbt_automaton_exp_label_compare(xbt_automaton_exp_label_t l1, xbt_automaton_exp_label_t l2){
302 if(l1->type != l2->type)
308 if(xbt_automaton_exp_label_compare(l1->u.or_and.left_exp, l2->u.or_and.left_exp))
311 return xbt_automaton_exp_label_compare(l1->u.or_and.right_exp, l2->u.or_and.right_exp);
314 return xbt_automaton_exp_label_compare(l1->u.exp_not, l2->u.exp_not);
317 return (strcmp(l1->u.predicat, l2->u.predicat));
328 int xbt_automaton_propositional_symbols_compare_value(xbt_dynar_t s1, xbt_dynar_t s2){
331 unsigned int nb_elem = xbt_dynar_length(s1);
333 for(cursor=0;cursor<nb_elem;cursor++){
334 iptr1 = xbt_dynar_get_ptr(s1, cursor);
335 iptr2 = xbt_dynar_get_ptr(s2, cursor);
343 static void xbt_automaton_transition_free(xbt_automaton_transition_t t);
344 static void xbt_automaton_exp_label_free(xbt_automaton_exp_label_t e);
345 static void xbt_automaton_propositional_symbol_free(xbt_automaton_propositional_symbol_t ps);
347 void xbt_automaton_state_free(xbt_automaton_state_t s){
350 xbt_dynar_free(&(s->in));
351 xbt_dynar_free(&(s->out));
357 void xbt_automaton_state_free_voidp(void *s){
358 xbt_automaton_state_free((xbt_automaton_state_t) * (void **) s);
361 static void xbt_automaton_transition_free(xbt_automaton_transition_t t){
363 xbt_automaton_exp_label_free(t->label);
369 void xbt_automaton_transition_free_voidp(void *t){
370 xbt_automaton_transition_free((xbt_automaton_transition_t) * (void **) t);
373 static void xbt_automaton_exp_label_free(xbt_automaton_exp_label_t e){
378 xbt_automaton_exp_label_free(e->u.or_and.left_exp);
379 xbt_automaton_exp_label_free(e->u.or_and.right_exp);
382 xbt_automaton_exp_label_free(e->u.exp_not);
385 xbt_free(e->u.predicat);
395 void xbt_automaton_exp_label_free_voidp(void *e){
396 xbt_automaton_exp_label_free((xbt_automaton_exp_label_t) * (void **) e);
399 static void xbt_automaton_propositional_symbol_free(xbt_automaton_propositional_symbol_t ps){
407 void xbt_automaton_propositional_symbol_free_voidp(void *ps){
408 xbt_automaton_propositional_symbol_t symbol = (xbt_automaton_propositional_symbol_t) * (void **) ps;
409 if (symbol->free_function)
410 symbol->free_function(symbol->data);
411 xbt_free(symbol->pred);
412 xbt_automaton_propositional_symbol_free(symbol);
415 void xbt_automaton_free(xbt_automaton_t a){
417 xbt_dynar_free(&(a->propositional_symbols));
418 xbt_dynar_free(&(a->transitions));
419 xbt_dynar_free(&(a->states));
420 xbt_automaton_state_free(a->current_state);