+ /* create the array that will be returned */
+ changed_tasks = xbt_new0(SD_task_t, changed_task_capacity); /* changed_task_capacity will be increased if necessary */
+ changed_tasks[0] = NULL;
+
+ surf_solve(); /* Takes traces into account. Returns 0.0 */
+
+ sd_global->watch_point_reached = 0;
+
+ /* main loop */
+ while (elapsed_time >= 0.0 && total_time < how_long && !sd_global->watch_point_reached) {
+
+ /* explore the scheduled tasks */
+ xbt_swag_foreach(task, sd_global->scheduled_task_set) {
+ INFO1("Examining task '%s'...", SD_task_get_name(task));
+ task->state_changed = 0;
+ if (xbt_dynar_length(task->tasks_before) == 0) {
+ INFO1("The dependencies are satisfied. Executing task '%s'", SD_task_get_name(task));
+ action = __SD_task_run(task);
+ surf_workstation_resource->common_public->action_set_data(action, task);
+ task->state_changed = 1;
+
+ changed_tasks[changed_task_number++] = task; /* replace NULL by the task */
+ if (changed_task_number == changed_task_capacity) {
+ changed_task_capacity *= 2;
+ changed_tasks = xbt_realloc(changed_tasks, sizeof(SD_task_t) * changed_task_capacity);
+ }
+ changed_tasks[changed_task_number] = NULL;
+ }
+ else {
+ INFO1("Cannot execute task '%s' now because some depencies are not satisfied.", SD_task_get_name(task));
+ }
+ }
+
+ elapsed_time = surf_solve();
+ if (elapsed_time > 0.0)
+ total_time += elapsed_time;
+ /* INFO1("Total time: %f", total_time);*/
+
+ while ((action = xbt_swag_extract(surf_workstation_resource->common_public->states.done_action_set))) {
+ task = action->data;
+ INFO1("Task '%s' done", SD_task_get_name(task));
+ __SD_task_set_state(task, SD_DONE);
+ __SD_task_remove_dependencies(task);
+ if (!task->state_changed) {
+ task->state_changed = 1;
+ changed_tasks[changed_task_number++] = task;
+ }
+ }
+
+ while ((action = xbt_swag_extract(surf_workstation_resource->common_public->states.failed_action_set))) {
+ task = action->data;
+ INFO1("Task '%s' failed", SD_task_get_name(task));
+ __SD_task_set_state(task, SD_FAILED);
+ if (!task->state_changed) {
+ task->state_changed = 1;
+ changed_tasks[changed_task_number++] = task;
+ }
+ }