XBT_PUBLIC unsigned int simcall_comm_waitany(simgrid::kernel::activity::CommImpl* comms[], size_t count,
double timeout);
XBT_PUBLIC void simcall_comm_wait(const smx_activity_t& comm, double timeout);
XBT_PUBLIC unsigned int simcall_comm_waitany(simgrid::kernel::activity::CommImpl* comms[], size_t count,
double timeout);
XBT_PUBLIC void simcall_comm_wait(const smx_activity_t& comm, double timeout);