/* automaton - representation of büchi automaton */
-/* Copyright (c) 2011. The SimGrid Team.
+/* Copyright (c) 2011-2015. The SimGrid Team.
* All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
#include "xbt/automaton.h"
-
-xbt_automaton_t xbt_automaton_new_automaton(){
+#include <stdio.h> /* printf */
+
+struct xbt_automaton_propositional_symbol{
+ char* pred;
+ /** Callback used to evaluate the value of the symbol */
+ int (*callback)(void*);
+ /** Additional data for the callback.
+ Alternatively it can be used as a pointer to the data. */
+ void* data;
+ //** Optional callback used to free the data field */
+ void (*free_function)(void*);
+};
+
+xbt_automaton_t xbt_automaton_new(){
xbt_automaton_t automaton = NULL;
automaton = xbt_new0(struct xbt_automaton, 1);
- automaton->states = xbt_dynar_new(sizeof(xbt_state_t), NULL);
- automaton->transitions = xbt_dynar_new(sizeof(xbt_transition_t), NULL);
- automaton->propositional_symbols = xbt_dynar_new(sizeof(xbt_propositional_symbol_t), NULL);
+ automaton->states = xbt_dynar_new(sizeof(xbt_automaton_state_t), xbt_automaton_state_free_voidp);
+ automaton->transitions = xbt_dynar_new(sizeof(xbt_automaton_transition_t), xbt_automaton_transition_free_voidp);
+ automaton->propositional_symbols = xbt_dynar_new(sizeof(xbt_automaton_propositional_symbol_t), xbt_automaton_propositional_symbol_free_voidp);
return automaton;
}
-xbt_state_t xbt_automaton_new_state(xbt_automaton_t a, int type, char* id){
- xbt_state_t state = NULL;
- state = xbt_new0(struct xbt_state, 1);
+xbt_automaton_state_t xbt_automaton_state_new(xbt_automaton_t a, int type, char* id){
+ xbt_automaton_state_t state = NULL;
+ state = xbt_new0(struct xbt_automaton_state, 1);
state->type = type;
- state->id = strdup(id);
- state->in = xbt_dynar_new(sizeof(xbt_transition_t), NULL);
- state->out = xbt_dynar_new(sizeof(xbt_transition_t), NULL);
+ state->id = xbt_strdup(id);
+ state->in = xbt_dynar_new(sizeof(xbt_automaton_transition_t), xbt_automaton_transition_free_voidp);
+ state->out = xbt_dynar_new(sizeof(xbt_automaton_transition_t), xbt_automaton_transition_free_voidp);
xbt_dynar_push(a->states, &state);
return state;
}
-xbt_transition_t xbt_automaton_new_transition(xbt_automaton_t a, xbt_state_t src, xbt_state_t dst, xbt_exp_label_t label){
- xbt_transition_t transition = NULL;
- transition = xbt_new0(struct xbt_transition, 1);
+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){
+ xbt_automaton_transition_t transition = NULL;
+ transition = xbt_new0(struct xbt_automaton_transition, 1);
if(src != NULL){
xbt_dynar_push(src->out, &transition);
transition->src = src;
return transition;
}
-xbt_exp_label_t xbt_automaton_new_label(int type, ...){
- xbt_exp_label_t label = NULL;
- label = xbt_new0(struct xbt_exp_label, 1);
+xbt_automaton_exp_label_t xbt_automaton_exp_label_new(int type, ...){
+ xbt_automaton_exp_label_t label = NULL;
+ label = xbt_new0(struct xbt_automaton_exp_label, 1);
label->type = type;
va_list ap;
va_start(ap, type);
switch(type){
case 0 : {
- xbt_exp_label_t left = va_arg(ap, xbt_exp_label_t);
- xbt_exp_label_t right = va_arg(ap, xbt_exp_label_t);
+ xbt_automaton_exp_label_t left = va_arg(ap, xbt_automaton_exp_label_t);
+ xbt_automaton_exp_label_t right = va_arg(ap, xbt_automaton_exp_label_t);
label->u.or_and.left_exp = left;
label->u.or_and.right_exp = right;
break;
}
case 1 : {
- xbt_exp_label_t left = va_arg(ap, xbt_exp_label_t);
- xbt_exp_label_t right = va_arg(ap, xbt_exp_label_t);
+ xbt_automaton_exp_label_t left = va_arg(ap, xbt_automaton_exp_label_t);
+ xbt_automaton_exp_label_t right = va_arg(ap, xbt_automaton_exp_label_t);
label->u.or_and.left_exp = left;
label->u.or_and.right_exp = right;
break;
}
case 2 : {
- xbt_exp_label_t exp_not = va_arg(ap, xbt_exp_label_t);
+ xbt_automaton_exp_label_t exp_not = va_arg(ap, xbt_automaton_exp_label_t);
label->u.exp_not = exp_not;
break;
}
case 3 :{
char* p = va_arg(ap, char*);
- label->u.predicat = strdup(p);
+ label->u.predicat = xbt_strdup(p);
break;
}
}
return a->transitions;
}
-xbt_transition_t xbt_automaton_get_transition(xbt_automaton_t a, xbt_state_t src, xbt_state_t dst){
- xbt_transition_t transition;
+xbt_automaton_transition_t xbt_automaton_get_transition(xbt_automaton_t a, xbt_automaton_state_t src, xbt_automaton_state_t dst){
+ xbt_automaton_transition_t transition;
unsigned int cursor;
xbt_dynar_foreach(src->out, cursor, transition){
if((transition->src == src) && (transition->dst == dst))
return NULL;
}
-void xbt_automaton_free_automaton(xbt_automaton_t a, void_f_pvoid_t transition_free_function){
- unsigned int cursor = 0;
- xbt_state_t state = NULL;
- xbt_transition_t transition = NULL;
-
- xbt_dynar_foreach(a->states, cursor, state){
- xbt_dynar_free(&(state->out));
- xbt_dynar_free(&(state->in));
- }
-
- xbt_dynar_foreach(a->transitions, cursor, transition){
- if(transition_free_function)
- (*transition_free_function) (transition->label);
- }
-
- xbt_dynar_foreach(a->states, cursor, state)
- free(state);
- xbt_dynar_free(&(a->states));
-
- xbt_dynar_foreach(a->transitions, cursor, state)
- free(transition);
- xbt_dynar_free(&(a->transitions));
-
- free(a);
-
- return;
-}
-
-void xbt_automaton_free_state(xbt_automaton_t a, xbt_state_t s, void_f_pvoid_t transition_free_function){
- unsigned long nbr;
- unsigned long i;
- unsigned int cursor = 0;
- xbt_state_t state = NULL;
- xbt_transition_t transition = NULL;
-
- nbr = xbt_dynar_length(a->transitions);
- for(i = 0; i <nbr; i++){
- xbt_dynar_get_cpy(a->transitions, cursor, &transition);
- if((transition->src == s) || (transition->dst == s)){
- xbt_automaton_free_transition(a, transition, transition_free_function);
- }else{
- cursor++;
- }
- }
-
- cursor = 0;
- xbt_dynar_foreach(a->states, cursor, state)
- if(state == s)
- xbt_dynar_cursor_rm(a->states, &cursor);
-
- xbt_dynar_free(&(s->in));
- xbt_dynar_free(&(s->out));
-
- free(s);
-
- return;
-}
-
-void xbt_automaton_free_transition(xbt_automaton_t a, xbt_transition_t t, void_f_pvoid_t transition_free_function){
- int index;
- unsigned int cursor = 0;
- xbt_transition_t transition = NULL;
-
- if((transition_free_function) && (t->label))
- (*transition_free_function) (t->label);
-
- xbt_dynar_foreach(a->transitions, cursor, transition) {
- if(transition == t){
- index = __xbt_find_in_dynar(transition->dst->in, transition);
- xbt_dynar_remove_at(transition->dst->in, index, NULL);
- index = __xbt_find_in_dynar(transition->src->out, transition);
- xbt_dynar_remove_at(transition->src->out, index, NULL);
- xbt_dynar_cursor_rm(a->transitions, & cursor);
- free(transition);
- break;
- }
- }
-}
-
-xbt_state_t xbt_automaton_transition_get_source(xbt_transition_t t){
+xbt_automaton_state_t xbt_automaton_transition_get_source(xbt_automaton_transition_t t){
return t->src;
}
-xbt_state_t xbt_automaton_transition_get_destination(xbt_transition_t t){
+xbt_automaton_state_t xbt_automaton_transition_get_destination(xbt_automaton_transition_t t){
return t->dst;
}
-void xbt_automaton_transition_set_source(xbt_transition_t t, xbt_state_t src){
+void xbt_automaton_transition_set_source(xbt_automaton_transition_t t, xbt_automaton_state_t src){
t->src = src;
xbt_dynar_push(src->out,&t);
}
-void xbt_automaton_transition_set_destination(xbt_transition_t t, xbt_state_t dst){
+void xbt_automaton_transition_set_destination(xbt_automaton_transition_t t, xbt_automaton_state_t dst){
t->dst = dst;
xbt_dynar_push(dst->in,&t);
}
-xbt_dynar_t xbt_automaton_state_get_out_transitions(xbt_state_t s){
+xbt_dynar_t xbt_automaton_state_get_out_transitions(xbt_automaton_state_t s){
return s->out;
}
-xbt_dynar_t xbt_automaton_state_get_in_transitions(xbt_state_t s){
+xbt_dynar_t xbt_automaton_state_get_in_transitions(xbt_automaton_state_t s){
return s->in;
}
-xbt_state_t xbt_automaton_state_exists(xbt_automaton_t a, char *id){
- xbt_state_t state = NULL;
+xbt_automaton_state_t xbt_automaton_state_exists(xbt_automaton_t a, char *id){
+ xbt_automaton_state_t state = NULL;
unsigned int cursor = 0;
xbt_dynar_foreach(a->states, cursor, state){
if(strcmp(state->id, id)==0)
return NULL;
}
-void xbt_automaton_display(xbt_automaton_t a){
- unsigned int cursor = 0;
- xbt_state_t state = NULL;
+void xbt_automaton_display(xbt_automaton_t a){
+ unsigned int cursor;
+ xbt_automaton_state_t state = NULL;
- printf("\n\nEtat courant : %s\n", a->current_state->id);
+ printf("\n\nCurrent state: %s\n", a->current_state->id);
- printf("\nListe des états : %lu\n\n", xbt_dynar_length(a->states));
+ printf("\nStates' List: %lu\n\n", xbt_dynar_length(a->states));
- xbt_dynar_foreach(a->states, cursor, state){
- printf("ID : %s, type : %d\n", state->id, state->type);
- }
+ xbt_dynar_foreach(a->states, cursor, state)
+ printf("ID: %s, type: %d\n", state->id, state->type);
- cursor=0;
- xbt_transition_t transition = NULL;
- printf("\nListe des transitions : %lu\n\n", xbt_dynar_length(a->transitions));
+ xbt_automaton_transition_t transition;
+ printf("\nTransitions: %lu\n\n", xbt_dynar_length(a->transitions));
xbt_dynar_foreach(a->transitions, cursor, transition){
- printf("label :");
- xbt_automaton_display_exp(transition->label);
+ printf("label:");
+ xbt_automaton_exp_label_display(transition->label);
printf(", %s -> %s\n", transition->src->id, transition->dst->id);
}
}
-void xbt_automaton_display_exp(xbt_exp_label_t label){
+void xbt_automaton_exp_label_display(xbt_automaton_exp_label_t label){
switch(label->type){
case 0 :
printf("(");
- xbt_automaton_display_exp(label->u.or_and.left_exp);
+ xbt_automaton_exp_label_display(label->u.or_and.left_exp);
printf(" || ");
- xbt_automaton_display_exp(label->u.or_and.right_exp);
+ xbt_automaton_exp_label_display(label->u.or_and.right_exp);
printf(")");
break;
case 1 :
printf("(");
- xbt_automaton_display_exp(label->u.or_and.left_exp);
+ xbt_automaton_exp_label_display(label->u.or_and.left_exp);
printf(" && ");
- xbt_automaton_display_exp(label->u.or_and.right_exp);
+ xbt_automaton_exp_label_display(label->u.or_and.right_exp);
printf(")");
break;
case 2 :
printf("(!");
- xbt_automaton_display_exp(label->u.exp_not);
+ xbt_automaton_exp_label_display(label->u.exp_not);
printf(")");
break;
case 3 :
}
-xbt_state_t xbt_automaton_get_current_state(xbt_automaton_t a){
+xbt_automaton_state_t xbt_automaton_get_current_state(xbt_automaton_t a){
return a->current_state;
}
-xbt_propositional_symbol_t xbt_new_propositional_symbol(xbt_automaton_t a, const char* id, void* fct){
- xbt_propositional_symbol_t prop_symb = NULL;
- prop_symb = xbt_new0(struct xbt_propositional_symbol, 1);
- prop_symb->pred = strdup(id);
- prop_symb->function = fct;
+static int call_simple_function(void* function)
+{
+ return ((int (*)(void)) function)();
+}
+
+xbt_automaton_propositional_symbol_t xbt_automaton_propositional_symbol_new(xbt_automaton_t a, const char* id, int(*fct)(void)){
+ xbt_automaton_propositional_symbol_t prop_symb = NULL;
+ prop_symb = xbt_new0(struct xbt_automaton_propositional_symbol, 1);
+ prop_symb->pred = xbt_strdup(id);
+ prop_symb->callback = call_simple_function;
+ prop_symb->data = fct;
+ prop_symb->free_function = NULL;
+ xbt_dynar_push(a->propositional_symbols, &prop_symb);
+ return prop_symb;
+}
+
+XBT_PUBLIC(xbt_automaton_propositional_symbol_t) xbt_automaton_propositional_symbol_new_pointer(xbt_automaton_t a, const char* id, int* value)
+{
+ xbt_automaton_propositional_symbol_t prop_symb = NULL;
+ prop_symb = xbt_new0(struct xbt_automaton_propositional_symbol, 1);
+ prop_symb->pred = xbt_strdup(id);
+ prop_symb->callback = NULL;
+ prop_symb->data = value;
+ prop_symb->free_function = NULL;
+ xbt_dynar_push(a->propositional_symbols, &prop_symb);
+ return prop_symb;
+}
+
+XBT_PUBLIC(xbt_automaton_propositional_symbol_t) xbt_automaton_propositional_symbol_new_callback(
+ xbt_automaton_t a, const char* id,
+ xbt_automaton_propositional_symbol_callback_type callback,
+ void* data, xbt_automaton_propositional_symbol_free_function_type free_function)
+{
+ xbt_automaton_propositional_symbol_t prop_symb = NULL;
+ prop_symb = xbt_new0(struct xbt_automaton_propositional_symbol, 1);
+ prop_symb->pred = xbt_strdup(id);
+ prop_symb->callback = callback;
+ prop_symb->data = data;
+ prop_symb->free_function = free_function;
xbt_dynar_push(a->propositional_symbols, &prop_symb);
return prop_symb;
}
-int automaton_state_compare(xbt_state_t s1, xbt_state_t s2){
+XBT_PUBLIC(int) xbt_automaton_propositional_symbol_evaluate(xbt_automaton_propositional_symbol_t symbol)
+{
+ if (symbol->callback)
+ return (symbol->callback)(symbol->data);
+ else
+ return *(int*) symbol->data;
+}
+
+XBT_PUBLIC(xbt_automaton_propositional_symbol_callback_type) xbt_automaton_propositional_symbol_get_callback(xbt_automaton_propositional_symbol_t symbol)
+{
+ return symbol->callback;
+}
+
+XBT_PUBLIC(void*) xbt_automaton_propositional_symbol_get_data(xbt_automaton_propositional_symbol_t symbol)
+{
+ return symbol->data;
+}
+
+XBT_PUBLIC(const char*) xbt_automaton_propositional_symbol_get_name(xbt_automaton_propositional_symbol_t symbol)
+{
+ return symbol->pred;
+}
+
+int xbt_automaton_state_compare(xbt_automaton_state_t s1, xbt_automaton_state_t s2){
/* single id for each state, id and type sufficient for comparison*/
}
-int automaton_transition_compare(const void *t1, const void *t2){
+int xbt_automaton_transition_compare(const void *t1, const void *t2){
- if(automaton_state_compare(((xbt_transition_t)t1)->src, ((xbt_transition_t)t2)->src))
+ if(xbt_automaton_state_compare(((xbt_automaton_transition_t)t1)->src, ((xbt_automaton_transition_t)t2)->src))
return 1;
- if(automaton_state_compare(((xbt_transition_t)t1)->dst, ((xbt_transition_t)t2)->dst))
+ if(xbt_automaton_state_compare(((xbt_automaton_transition_t)t1)->dst, ((xbt_automaton_transition_t)t2)->dst))
return 1;
- if(automaton_label_transition_compare(((xbt_transition_t)t1)->label,((xbt_transition_t)t2)->label))
+ if(xbt_automaton_exp_label_compare(((xbt_automaton_transition_t)t1)->label,((xbt_automaton_transition_t)t2)->label))
return 1;
return 0;
}
-int automaton_label_transition_compare(xbt_exp_label_t l1, xbt_exp_label_t l2){
+int xbt_automaton_exp_label_compare(xbt_automaton_exp_label_t l1, xbt_automaton_exp_label_t l2){
if(l1->type != l2->type)
return 1;
case 0 : // OR
case 1 : // AND
- if(automaton_label_transition_compare(l1->u.or_and.left_exp, l2->u.or_and.left_exp))
+ if(xbt_automaton_exp_label_compare(l1->u.or_and.left_exp, l2->u.or_and.left_exp))
return 1;
else
- return automaton_label_transition_compare(l1->u.or_and.right_exp, l2->u.or_and.right_exp);
+ return xbt_automaton_exp_label_compare(l1->u.or_and.right_exp, l2->u.or_and.right_exp);
break;
case 2 : // NOT
- return automaton_label_transition_compare(l1->u.exp_not, l2->u.exp_not);
+ return xbt_automaton_exp_label_compare(l1->u.exp_not, l2->u.exp_not);
break;
case 3 : // predicat
}
-int propositional_symbols_compare_value(xbt_dynar_t s1, xbt_dynar_t s2){
+int xbt_automaton_propositional_symbols_compare_value(xbt_dynar_t s1, xbt_dynar_t s2){
int *iptr1, *iptr2;
unsigned int cursor;
return 0;
}
+
+/************ Free functions ****************/
+
+static void xbt_automaton_transition_free(xbt_automaton_transition_t t);
+static void xbt_automaton_exp_label_free(xbt_automaton_exp_label_t e);
+static void xbt_automaton_propositional_symbol_free(xbt_automaton_propositional_symbol_t ps);
+
+void xbt_automaton_state_free(xbt_automaton_state_t s){
+ if(s){
+ xbt_free(s->id);
+ xbt_dynar_free(&(s->in));
+ xbt_dynar_free(&(s->out));
+ xbt_free(s);
+ s = NULL;
+ }
+}
+
+void xbt_automaton_state_free_voidp(void *s){
+ xbt_automaton_state_free((xbt_automaton_state_t) * (void **) s);
+}
+
+static void xbt_automaton_transition_free(xbt_automaton_transition_t t){
+ if(t){
+ xbt_automaton_exp_label_free(t->label);
+ xbt_free(t);
+ t = NULL;
+ }
+}
+
+void xbt_automaton_transition_free_voidp(void *t){
+ xbt_automaton_transition_free((xbt_automaton_transition_t) * (void **) t);
+}
+
+static void xbt_automaton_exp_label_free(xbt_automaton_exp_label_t e){
+ if(e){
+ switch(e->type){
+ case 0:
+ case 1:
+ xbt_automaton_exp_label_free(e->u.or_and.left_exp);
+ xbt_automaton_exp_label_free(e->u.or_and.right_exp);
+ break;
+ case 2:
+ xbt_automaton_exp_label_free(e->u.exp_not);
+ break;
+ case 3:
+ xbt_free(e->u.predicat);
+ break;
+ default:
+ break;
+ }
+ xbt_free(e);
+ e = NULL;
+ }
+}
+
+void xbt_automaton_exp_label_free_voidp(void *e){
+ xbt_automaton_exp_label_free((xbt_automaton_exp_label_t) * (void **) e);
+}
+
+static void xbt_automaton_propositional_symbol_free(xbt_automaton_propositional_symbol_t ps){
+ if(ps){
+ xbt_free(ps->pred);
+ xbt_free(ps);
+ ps = NULL;
+ }
+}
+
+void xbt_automaton_propositional_symbol_free_voidp(void *ps){
+ xbt_automaton_propositional_symbol_t symbol = (xbt_automaton_propositional_symbol_t) * (void **) ps;
+ if (symbol->free_function)
+ symbol->free_function(symbol->data);
+ xbt_free(symbol->pred);
+ xbt_automaton_propositional_symbol_free(symbol);
+}
+
+void xbt_automaton_free(xbt_automaton_t a){
+ if(a){
+ xbt_dynar_free(&(a->propositional_symbols));
+ xbt_dynar_free(&(a->transitions));
+ xbt_dynar_free(&(a->states));
+ xbt_automaton_state_free(a->current_state);
+ xbt_free(a);
+ a = NULL;
+ }
+}
