+static void ws_update_resource_state(void *id,
+ tmgr_trace_event_t event_type,
+ double value, double date)
+{
+ THROW_IMPOSSIBLE; /* This model does not implement parallel tasks */
+}
+
+static surf_action_t ws_execute(void *workstation, double size)
+{
+ surf_resource_t cpu = ((surf_resource_t) surf_cpu_resource_priv(workstation));
+ return cpu->model->extension.cpu.execute(workstation, size);
+}
+
+static surf_action_t ws_action_sleep(void *workstation, double duration)
+{
+ return surf_cpu_model->extension.cpu.
+ sleep(workstation, duration);
+}
+
+static void ws_action_suspend(surf_action_t action)
+{
+ if (action->model_type == surf_network_model)
+ surf_network_model->suspend(action);
+ else if (action->model_type == surf_cpu_model)
+ surf_cpu_model->suspend(action);
+ else
+ DIE_IMPOSSIBLE;
+}
+
+static void ws_action_resume(surf_action_t action)
+{
+ if (action->model_type == surf_network_model)
+ surf_network_model->resume(action);
+ else if (action->model_type == surf_cpu_model)
+ surf_cpu_model->resume(action);
+ else
+ DIE_IMPOSSIBLE;
+}
+
+static int ws_action_is_suspended(surf_action_t action)
+{
+ if (action->model_type == surf_network_model)
+ return surf_network_model->is_suspended(action);
+ if (action->model_type == surf_cpu_model)
+ return surf_cpu_model->is_suspended(action);
+ DIE_IMPOSSIBLE;
+ return -1;
+}
+
+static void ws_action_set_max_duration(surf_action_t action,
+ double duration)
+{
+ if (action->model_type == surf_network_model)
+ surf_network_model->set_max_duration(action, duration);
+ else if (action->model_type == surf_cpu_model)
+ surf_cpu_model->set_max_duration(action, duration);
+ else
+ DIE_IMPOSSIBLE;
+}
+
+static void ws_action_set_priority(surf_action_t action, double priority)
+{
+ if (action->model_type == surf_network_model)
+ surf_network_model->set_priority(action, priority);
+ else if (action->model_type == surf_cpu_model)
+ surf_cpu_model->set_priority(action, priority);
+ else
+ DIE_IMPOSSIBLE;
+}
+
+#ifdef HAVE_TRACING
+static void ws_action_set_category(surf_action_t action, const char *category)
+{
+ if (action->model_type == surf_network_model)
+ surf_network_model->set_category(action, category);
+ else if (action->model_type == surf_cpu_model)
+ surf_cpu_model->set_category(action, category);
+ else
+ DIE_IMPOSSIBLE;
+}
+#endif
+
+#ifdef HAVE_LATENCY_BOUND_TRACKING
+static int ws_get_latency_limited(surf_action_t action)
+{
+ if (action->model_type == surf_network_model)
+ return surf_network_model->get_latency_limited(action);
+ else
+ return 0;
+}
+#endif
+
+static double ws_action_get_remains(surf_action_t action)