1 /* automaton - representation of büchi automaton */
3 /* Copyright (c) 2011-2017. 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 */
12 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(xbt_automaton, xbt, "Automaton");
14 struct xbt_automaton_propositional_symbol{
16 /** Callback used to evaluate the value of the symbol */
17 int (*callback)(void*);
18 /** Additional data for the callback.
19 Alternatively it can be used as a pointer to the data. */
21 /** Optional callback used to free the data field */
22 void (*free_function)(void*);
25 xbt_automaton_t xbt_automaton_new(void){
26 xbt_automaton_t automaton = xbt_new0(struct xbt_automaton, 1);
27 automaton->states = xbt_dynar_new(sizeof(xbt_automaton_state_t), xbt_automaton_state_free_voidp);
28 automaton->transitions = xbt_dynar_new(sizeof(xbt_automaton_transition_t), xbt_automaton_transition_free_voidp);
29 automaton->propositional_symbols = xbt_dynar_new(sizeof(xbt_automaton_propositional_symbol_t), xbt_automaton_propositional_symbol_free_voidp);
33 xbt_automaton_state_t xbt_automaton_state_new(xbt_automaton_t a, int type, char* id){
34 xbt_automaton_state_t 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 = xbt_new0(struct xbt_automaton_transition, 1);
46 xbt_dynar_push(src->out, &transition);
47 transition->src = src;
50 xbt_dynar_push(dst->in, &transition);
51 transition->dst = dst;
53 transition->label = label;
54 xbt_dynar_push(a->transitions, &transition);
58 xbt_automaton_exp_label_t xbt_automaton_exp_label_new(int type, ...){
59 xbt_automaton_exp_label_t label = xbt_new0(struct xbt_automaton_exp_label, 1);
61 xbt_automaton_exp_label_t left;
62 xbt_automaton_exp_label_t right;
63 xbt_automaton_exp_label_t exp_not;
69 left = va_arg(ap, xbt_automaton_exp_label_t);
70 right = va_arg(ap, xbt_automaton_exp_label_t);
71 label->u.or_and.left_exp = left;
72 label->u.or_and.right_exp = right;
75 left = va_arg(ap, xbt_automaton_exp_label_t);
76 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;
81 exp_not = va_arg(ap, xbt_automaton_exp_label_t);
82 label->u.exp_not = exp_not;
85 p = va_arg(ap, char*);
86 label->u.predicat = xbt_strdup(p);
91 XBT_DEBUG("Invalid type: %d", type);
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_automaton_t XBT_ATTRIB_UNUSED 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(void* function)
211 return ((int (*)(void)) function)();
214 xbt_automaton_propositional_symbol_t xbt_automaton_propositional_symbol_new(xbt_automaton_t a, const char* id, int(*fct)(void)){
215 xbt_automaton_propositional_symbol_t prop_symb = xbt_new0(struct xbt_automaton_propositional_symbol, 1);
216 prop_symb->pred = xbt_strdup(id);
217 prop_symb->callback = &call_simple_function;
218 prop_symb->data = fct;
219 prop_symb->free_function = NULL;
220 xbt_dynar_push(a->propositional_symbols, &prop_symb);
224 XBT_PUBLIC(xbt_automaton_propositional_symbol_t) xbt_automaton_propositional_symbol_new_pointer(xbt_automaton_t a, const char* id, int* value)
226 xbt_automaton_propositional_symbol_t prop_symb = xbt_new0(struct xbt_automaton_propositional_symbol, 1);
227 prop_symb->pred = xbt_strdup(id);
228 prop_symb->callback = NULL;
229 prop_symb->data = value;
230 prop_symb->free_function = NULL;
231 xbt_dynar_push(a->propositional_symbols, &prop_symb);
235 XBT_PUBLIC(xbt_automaton_propositional_symbol_t) xbt_automaton_propositional_symbol_new_callback(
236 xbt_automaton_t a, const char* id,
237 xbt_automaton_propositional_symbol_callback_type callback,
238 void* data, xbt_automaton_propositional_symbol_free_function_type free_function)
240 xbt_automaton_propositional_symbol_t prop_symb = xbt_new0(struct xbt_automaton_propositional_symbol, 1);
241 prop_symb->pred = xbt_strdup(id);
242 prop_symb->callback = callback;
243 prop_symb->data = data;
244 prop_symb->free_function = free_function;
245 xbt_dynar_push(a->propositional_symbols, &prop_symb);
249 XBT_PUBLIC(int) xbt_automaton_propositional_symbol_evaluate(xbt_automaton_propositional_symbol_t symbol)
251 if (symbol->callback)
252 return (symbol->callback)(symbol->data);
254 return *(int*) symbol->data;
257 XBT_PUBLIC(xbt_automaton_propositional_symbol_callback_type) xbt_automaton_propositional_symbol_get_callback(xbt_automaton_propositional_symbol_t symbol)
259 return symbol->callback;
262 XBT_PUBLIC(void*) xbt_automaton_propositional_symbol_get_data(xbt_automaton_propositional_symbol_t symbol)
267 XBT_PUBLIC(const char*) xbt_automaton_propositional_symbol_get_name(xbt_automaton_propositional_symbol_t symbol)
272 int xbt_automaton_state_compare(xbt_automaton_state_t s1, xbt_automaton_state_t s2){
274 /* single id for each state, id and type sufficient for comparison*/
276 if(strcmp(s1->id, s2->id))
279 if(s1->type != s2->type)
286 int xbt_automaton_transition_compare(const void *t1, const void *t2){
288 if(xbt_automaton_state_compare(((xbt_automaton_transition_t)t1)->src, ((xbt_automaton_transition_t)t2)->src))
291 if(xbt_automaton_state_compare(((xbt_automaton_transition_t)t1)->dst, ((xbt_automaton_transition_t)t2)->dst))
294 if(xbt_automaton_exp_label_compare(((xbt_automaton_transition_t)t1)->label,((xbt_automaton_transition_t)t2)->label))
301 int xbt_automaton_exp_label_compare(xbt_automaton_exp_label_t l1, xbt_automaton_exp_label_t l2){
303 if(l1->type != l2->type)
309 if(xbt_automaton_exp_label_compare(l1->u.or_and.left_exp, l2->u.or_and.left_exp))
312 return xbt_automaton_exp_label_compare(l1->u.or_and.right_exp, l2->u.or_and.right_exp);
315 return xbt_automaton_exp_label_compare(l1->u.exp_not, l2->u.exp_not);
318 return (strcmp(l1->u.predicat, l2->u.predicat));
329 int xbt_automaton_propositional_symbols_compare_value(xbt_dynar_t s1, xbt_dynar_t s2){
330 unsigned int nb_elem = xbt_dynar_length(s1);
332 for (unsigned int cursor = 0; cursor < nb_elem; cursor++) {
333 int* iptr1 = xbt_dynar_get_ptr(s1, cursor);
334 int* iptr2 = xbt_dynar_get_ptr(s2, cursor);
342 static void xbt_automaton_transition_free(xbt_automaton_transition_t t);
343 static void xbt_automaton_exp_label_free(xbt_automaton_exp_label_t e);
344 static void xbt_automaton_propositional_symbol_free(xbt_automaton_propositional_symbol_t ps);
346 void xbt_automaton_state_free(xbt_automaton_state_t s){
349 xbt_dynar_free(&(s->in));
350 xbt_dynar_free(&(s->out));
355 void xbt_automaton_state_free_voidp(void *s){
356 xbt_automaton_state_free((xbt_automaton_state_t) * (void **) s);
359 static void xbt_automaton_transition_free(xbt_automaton_transition_t t){
361 xbt_automaton_exp_label_free(t->label);
367 void xbt_automaton_transition_free_voidp(void *t){
368 xbt_automaton_transition_free((xbt_automaton_transition_t) * (void **) t);
371 static void xbt_automaton_exp_label_free(xbt_automaton_exp_label_t e){
376 xbt_automaton_exp_label_free(e->u.or_and.left_exp);
377 xbt_automaton_exp_label_free(e->u.or_and.right_exp);
380 xbt_automaton_exp_label_free(e->u.exp_not);
383 xbt_free(e->u.predicat);
393 void xbt_automaton_exp_label_free_voidp(void *e){
394 xbt_automaton_exp_label_free((xbt_automaton_exp_label_t) * (void **) e);
397 static void xbt_automaton_propositional_symbol_free(xbt_automaton_propositional_symbol_t ps){
405 void xbt_automaton_propositional_symbol_free_voidp(void *ps){
406 xbt_automaton_propositional_symbol_t symbol = (xbt_automaton_propositional_symbol_t) * (void **) ps;
407 if (symbol->free_function)
408 symbol->free_function(symbol->data);
409 xbt_automaton_propositional_symbol_free(symbol);
412 void xbt_automaton_free(xbt_automaton_t a){
414 xbt_dynar_free(&(a->propositional_symbols));
415 xbt_dynar_free(&(a->transitions));
416 xbt_dynar_free(&(a->states));
417 xbt_automaton_state_free(a->current_state);