int (*match_fun)(void *, void *, smx_action_t),
void *data, double rate);
-XBT_PUBLIC(void) simcall_comm_destroy(smx_action_t comm);
XBT_PUBLIC(smx_action_t) simcall_comm_iprobe(smx_rdv_t rdv, int src, int tag,
int (*match_fun)(void *, void *, smx_action_t), void *data);
XBT_PUBLIC(void) simcall_comm_cancel(smx_action_t comm);