-
-
-void MC_dfs(xbt_automaton_t a, int search_cycle){
-
- smx_process_t process = NULL;
- int value;
- mc_state_t next_graph_state = NULL;
- smx_req_t req = NULL;
- char *req_str;
-
- xbt_transition_t transition_succ = NULL;
- xbt_state_t successor = NULL;
- unsigned int cursor = 0;
- xbt_dynar_t elses = xbt_dynar_new(sizeof(xbt_transition_t), NULL);
- int res;
- int enabled_transition = 0;
-
- mc_pairs_t next_pair = NULL;
- mc_snapshot_t next_snapshot = NULL;
-
-
- /* Get current state */
- mc_pairs_t current_pair = (mc_pairs_t)xbt_fifo_get_item_content(xbt_fifo_get_first_item(mc_snapshot_stack));
-
- XBT_DEBUG("**************************************************");
- XBT_DEBUG("State=%p, %u interleave",current_pair->graph_state,MC_state_interleave_size(current_pair->graph_state));
-
- /* Update statistics */
- mc_stats->visited_states++;
-
- MC_restore_snapshot(current_pair->system_state);
- MC_UNSET_RAW_MEM;
-
- //FIXME : vérifier condition permettant d'avoir tous les successeurs possibles dans le graph
-
- while((req = MC_state_get_request(current_pair->graph_state, &value)) != NULL){
-
- /* Debug information */
- if(XBT_LOG_ISENABLED(mc_dfs, xbt_log_priority_debug)){
- req_str = MC_request_to_string(req, value);
- XBT_DEBUG("Execute: %s", req_str);
- xbt_free(req_str);
- }
-
- MC_state_set_executed_request(current_pair->graph_state, req, value);
- mc_stats->executed_transitions++;
-
- /* Answer the request */
- SIMIX_request_pre(req, value);
-
- /* Wait for requests (schedules processes) */
- MC_wait_for_requests();
-
-
- /* Create the new expanded graph_state */
- MC_SET_RAW_MEM;
-
- next_graph_state = MC_state_new();
-
- /* Get an enabled process and insert it in the interleave set of the next graph_state */
- xbt_swag_foreach(process, simix_global->process_list){
- if(MC_process_is_enabled(process)){
- MC_state_interleave_process(next_graph_state, process);
- }
- }
-
- next_snapshot = xbt_new0(s_mc_snapshot_t, 1);
- MC_take_snapshot(next_snapshot);
-
- MC_UNSET_RAW_MEM;
-
- xbt_dynar_foreach(current_pair->automaton_state->out, cursor, transition_succ){
- successor = transition_succ->dst;
- res = MC_automaton_evaluate_label(a, transition_succ->label);
- if(res == 1){ // enabled transition
-
- MC_SET_RAW_MEM;
- next_pair = new_pair(next_snapshot, next_graph_state, successor);
-
- if((search_cycle == 1) && (pair_reached(list_pairs_reached, next_pair->num) == 1)){
- printf("\n-*-*-*-*-*-*- ACCEPTANCE CYCLE -*-*-*-*-*-*-\n");
- // afficher chemin menant au cycle d'acceptation
- exit(1);
- }
- if(next_pair->visited == 0){ // FIXME : tester avec search_cycle ?
- xbt_fifo_unshift(mc_snapshot_stack, next_pair);
- set_pair_visited(next_pair);
- MC_dfs(a, search_cycle);
- if((search_cycle == 0) && (next_pair->automaton_state->type == 1)){
- xbt_dynar_push(list_pairs_reached, &next_pair->num);
- MC_dfs(a, 1);
- }
- }
-
- MC_UNSET_RAW_MEM;
- enabled_transition = 1;
- }else{
- if(res == 2){
- xbt_dynar_push(elses,&transition_succ);
- }
- }
- }
-
- if(enabled_transition == 0){
- cursor = 0;
- xbt_dynar_foreach(elses, cursor, transition_succ){
- successor = transition_succ->dst;
- MC_SET_RAW_MEM;
- next_pair = new_pair(next_snapshot, next_graph_state, successor);
-
- if((search_cycle == 1) && (pair_reached(list_pairs_reached, next_pair->num) == 1)){
- printf("\n-*-*-*-*-*-*- ACCEPTANCE CYCLE -*-*-*-*-*-*-\n");
- // afficher chemin menant au cycle d'acceptation
- exit(1);
- }
- if(next_pair->visited == 0){ // FIXME : tester avec search_cycle ?
- xbt_fifo_unshift(mc_snapshot_stack, next_pair);
- set_pair_visited(next_pair);
- MC_dfs(a, search_cycle);
- if((search_cycle == 0) && (next_pair->automaton_state->type == 1)){
- xbt_dynar_push(list_pairs_reached, &next_pair->num);
- MC_dfs(a, 1);
- }
- }
-
- MC_UNSET_RAW_MEM;
- }
- }
-
- }
-
- xbt_fifo_shift(mc_snapshot_stack);
-
-}