-XBT_PUBLIC(void *) SIMIX_req_comm_get_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(void *) SIMIX_req_comm_get_src_data(smx_action_t comm);
+XBT_PUBLIC(void *) SIMIX_req_comm_get_dst_data(smx_action_t comm);