XBT_PUBLIC(double) SIMIX_req_host_execution_get_remains(smx_action_t execution);
XBT_PUBLIC(e_smx_state_t) SIMIX_req_host_execution_get_state(smx_action_t execution);
XBT_PUBLIC(void) SIMIX_req_host_execution_set_priority(smx_action_t execution, double priority);
+#ifdef HAVE_TRACING
+XBT_PUBLIC(void) SIMIX_req_host_execution_set_category(smx_action_t execution, const char *category);
+#endif
XBT_PUBLIC(void) SIMIX_req_host_execution_wait(smx_action_t execution);