/** Signal to others that an actor wakes up for a sleep **/
static xbt::signal<void(Actor const&)> on_wake_up;
/** Signal to others that an actor is has been migrated to another host **/
- static xbt::signal<void(Actor const&, Host const& previous_location)> on_host_change;
+ static xbt::signal<void(const Actor&, const Host& previous_location)> on_host_change;
#ifndef DOXYGEN
static xbt::signal<void(Actor const&)> on_migration_start; // XBT_ATTRIB_DEPRECATED_v329
static xbt::signal<void(Actor const&)> on_migration_end; // XBT_ATTRIB_DEPRECATED_v329