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);
97 xbt_dynar_t xbt_automaton_get_states(xbt_automaton_t a){
101 xbt_dynar_t xbt_automaton_get_transitions(xbt_automaton_t a){
102 return a->transitions;
105 xbt_automaton_transition_t xbt_automaton_get_transition(xbt_automaton_t a, xbt_automaton_state_t src, xbt_automaton_state_t dst){
106 xbt_automaton_transition_t transition;
108 xbt_dynar_foreach(src->out, cursor, transition){
109 if((transition->src == src) && (transition->dst == dst))
115 xbt_automaton_state_t xbt_automaton_transition_get_source(xbt_automaton_transition_t t){
119 xbt_automaton_state_t xbt_automaton_transition_get_destination(xbt_automaton_transition_t t){
123 void xbt_automaton_transition_set_source(xbt_automaton_transition_t t, xbt_automaton_state_t src){
125 xbt_dynar_push(src->out,&t);
128 void xbt_automaton_transition_set_destination(xbt_automaton_transition_t t, xbt_automaton_state_t dst){
130 xbt_dynar_push(dst->in,&t);
133 xbt_dynar_t xbt_automaton_state_get_out_transitions(xbt_automaton_state_t s){
137 xbt_dynar_t xbt_automaton_state_get_in_transitions(xbt_automaton_state_t s){
141 xbt_automaton_state_t xbt_automaton_state_exists(xbt_automaton_t a, char *id){
142 xbt_automaton_state_t state = NULL;
143 unsigned int cursor = 0;
144 xbt_dynar_foreach(a->states, cursor, state){
145 if(strcmp(state->id, id)==0)
151 void xbt_automaton_display(xbt_automaton_t a){
153 xbt_automaton_state_t state = NULL;
155 printf("\n\nCurrent state: %s\n", a->current_state->id);
157 printf("\nStates' List: %lu\n\n", xbt_dynar_length(a->states));
160 xbt_dynar_foreach(a->states, cursor, state)
161 printf("ID: %s, type: %d\n", state->id, state->type);
163 xbt_automaton_transition_t transition;
164 printf("\nTransitions: %lu\n\n", xbt_dynar_length(a->transitions));
166 xbt_dynar_foreach(a->transitions, cursor, transition){
168 xbt_automaton_exp_label_display(transition->label);
169 printf(", %s -> %s\n", transition->src->id, transition->dst->id);
173 void xbt_automaton_exp_label_display(xbt_automaton_exp_label_t label){
178 xbt_automaton_exp_label_display(label->u.or_and.left_exp);
180 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);
192 xbt_automaton_exp_label_display(label->u.exp_not);
196 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 = NULL;
216 prop_symb = xbt_new0(struct xbt_automaton_propositional_symbol, 1);
217 prop_symb->pred = xbt_strdup(id);
218 prop_symb->callback = call_simple_function;
219 prop_symb->data = fct;
220 prop_symb->free_function = NULL;
221 xbt_dynar_push(a->propositional_symbols, &prop_symb);
225 XBT_PUBLIC(xbt_automaton_propositional_symbol_t) xbt_automaton_propositional_symbol_new_pointer(xbt_automaton_t a, const char* id, int* value)
227 xbt_automaton_propositional_symbol_t prop_symb = NULL;
228 prop_symb = xbt_new0(struct xbt_automaton_propositional_symbol, 1);
229 prop_symb->pred = xbt_strdup(id);
230 prop_symb->callback = NULL;
231 prop_symb->data = value;
232 prop_symb->free_function = NULL;
233 xbt_dynar_push(a->propositional_symbols, &prop_symb);
237 XBT_PUBLIC(xbt_automaton_propositional_symbol_t) xbt_automaton_propositional_symbol_new_callback(
238 xbt_automaton_t a, const char* id,
239 xbt_automaton_propositional_symbol_callback_type callback,
240 void* data, xbt_automaton_propositional_symbol_free_function_type free_function)
242 xbt_automaton_propositional_symbol_t prop_symb = NULL;
243 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) xbt_automaton_propositional_symbol_get_callback(xbt_automaton_propositional_symbol_t symbol)
262 return symbol->callback;
265 XBT_PUBLIC(void*) xbt_automaton_propositional_symbol_get_data(xbt_automaton_propositional_symbol_t symbol)
270 XBT_PUBLIC(const char*) xbt_automaton_propositional_symbol_get_name(xbt_automaton_propositional_symbol_t symbol)
275 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*/
279 if(strcmp(s1->id, s2->id))
282 if(s1->type != s2->type)
289 int xbt_automaton_transition_compare(const void *t1, const void *t2){
291 if(xbt_automaton_state_compare(((xbt_automaton_transition_t)t1)->src, ((xbt_automaton_transition_t)t2)->src))
294 if(xbt_automaton_state_compare(((xbt_automaton_transition_t)t1)->dst, ((xbt_automaton_transition_t)t2)->dst))
297 if(xbt_automaton_exp_label_compare(((xbt_automaton_transition_t)t1)->label,((xbt_automaton_transition_t)t2)->label))
304 int xbt_automaton_exp_label_compare(xbt_automaton_exp_label_t l1, xbt_automaton_exp_label_t l2){
306 if(l1->type != l2->type)
313 if(xbt_automaton_exp_label_compare(l1->u.or_and.left_exp, l2->u.or_and.left_exp))
316 return xbt_automaton_exp_label_compare(l1->u.or_and.right_exp, l2->u.or_and.right_exp);
320 return xbt_automaton_exp_label_compare(l1->u.exp_not, l2->u.exp_not);
324 return (strcmp(l1->u.predicat, l2->u.predicat));
340 int xbt_automaton_propositional_symbols_compare_value(xbt_dynar_t s1, xbt_dynar_t s2){
344 unsigned int nb_elem = xbt_dynar_length(s1);
346 for(cursor=0;cursor<nb_elem;cursor++){
347 iptr1 = xbt_dynar_get_ptr(s1, cursor);
348 iptr2 = xbt_dynar_get_ptr(s2, cursor);
356 /************ Free functions ****************/
358 static void xbt_automaton_transition_free(xbt_automaton_transition_t t);
359 static void xbt_automaton_exp_label_free(xbt_automaton_exp_label_t e);
360 static void xbt_automaton_propositional_symbol_free(xbt_automaton_propositional_symbol_t ps);
362 void xbt_automaton_state_free(xbt_automaton_state_t s){
365 xbt_dynar_free(&(s->in));
366 xbt_dynar_free(&(s->out));
372 void xbt_automaton_state_free_voidp(void *s){
373 xbt_automaton_state_free((xbt_automaton_state_t) * (void **) s);
376 static void xbt_automaton_transition_free(xbt_automaton_transition_t t){
378 xbt_automaton_exp_label_free(t->label);
384 void xbt_automaton_transition_free_voidp(void *t){
385 xbt_automaton_transition_free((xbt_automaton_transition_t) * (void **) t);
388 static void xbt_automaton_exp_label_free(xbt_automaton_exp_label_t e){
393 xbt_automaton_exp_label_free(e->u.or_and.left_exp);
394 xbt_automaton_exp_label_free(e->u.or_and.right_exp);
397 xbt_automaton_exp_label_free(e->u.exp_not);
400 xbt_free(e->u.predicat);
410 void xbt_automaton_exp_label_free_voidp(void *e){
411 xbt_automaton_exp_label_free((xbt_automaton_exp_label_t) * (void **) e);
414 static void xbt_automaton_propositional_symbol_free(xbt_automaton_propositional_symbol_t ps){
422 void xbt_automaton_propositional_symbol_free_voidp(void *ps){
423 xbt_automaton_propositional_symbol_t symbol = (xbt_automaton_propositional_symbol_t) * (void **) ps;
424 if (symbol->free_function)
425 symbol->free_function(symbol->data);
426 xbt_free(symbol->pred);
427 xbt_automaton_propositional_symbol_free(symbol);
430 void xbt_automaton_free(xbt_automaton_t a){
432 xbt_dynar_free(&(a->propositional_symbols));
433 xbt_dynar_free(&(a->transitions));
434 xbt_dynar_free(&(a->states));
435 xbt_automaton_state_free(a->current_state);