@example examples/s4u/actor-migration/s4u_actor-migration.cpp
@example examples/s4u/actor-suspend/s4u_actor-suspend.cpp
@example examples/s4u/app-token-ring/s4u_app-token-ring.cpp
@example examples/s4u/actor-migration/s4u_actor-migration.cpp
@example examples/s4u/actor-suspend/s4u_actor-suspend.cpp
@example examples/s4u/app-token-ring/s4u_app-token-ring.cpp