XBT_PUBLIC(msg_as_t) MSG_environment_get_routing_root(void);
XBT_PUBLIC(const char *) MSG_environment_as_get_name(msg_as_t as);
XBT_PUBLIC(xbt_dict_t) MSG_environment_as_get_routing_sons(msg_as_t as);
-XBT_PUBLIC(const char *)MSG_environment_as_get_property_value(msg_as_t as, const char *name);
+XBT_PUBLIC(const char *) MSG_environment_as_get_property_value(msg_as_t as, const char *name);
+XBT_PUBLIC(const char *) MSG_environment_as_get_model(msg_as_t as);
+XBT_PUBLIC(xbt_dynar_t) MSG_environment_as_get_hosts(msg_as_t as);
/************************** File handling ***********************************/
XBT_PUBLIC(double) MSG_file_read(void* ptr, size_t size, size_t nmemb, msg_file_t stream);
XBT_PUBLIC(msg_error_t) MSG_host_set_data(msg_host_t host, void *data);
XBT_PUBLIC(void *) MSG_host_get_data(msg_host_t host);
XBT_PUBLIC(const char *) MSG_host_get_name(msg_host_t host);
+XBT_PUBLIC(void) MSG_host_on(msg_host_t host);
+XBT_PUBLIC(void) MSG_host_off(msg_host_t host);
XBT_PUBLIC(msg_host_t) MSG_host_self(void);
XBT_PUBLIC(int) MSG_get_host_msgload(msg_host_t host);
/* int MSG_get_msgload(void); This function lacks specification; discard it */