XBT_PUBLIC(e_smx_state_t) SIMIX_req_comm_get_state(smx_action_t comm);
XBT_PUBLIC(void *) SIMIX_req_comm_get_src_data(smx_action_t comm);
XBT_PUBLIC(void *) SIMIX_req_comm_get_dst_data(smx_action_t comm);
-XBT_PUBLIC(void *) SIMIX_req_comm_get_src_buff(smx_action_t comm);
-XBT_PUBLIC(void *) SIMIX_req_comm_get_dst_buff(smx_action_t comm);
-XBT_PUBLIC(size_t) SIMIX_req_comm_get_src_buff_size(smx_action_t comm);
-XBT_PUBLIC(size_t) SIMIX_req_comm_get_dst_buff_size(smx_action_t comm);
XBT_PUBLIC(smx_process_t) SIMIX_req_comm_get_src_proc(smx_action_t comm);
XBT_PUBLIC(smx_process_t) SIMIX_req_comm_get_dst_proc(smx_action_t comm);
XBT_PUBLIC(void) SIMIX_req_comm_set_copy_data_callback(void (*callback)(smx_action_t,size_t));