| accept_queue | A doubly linked list of backlogged connections waiting to be accepted |
| ccack_pack | Congestion control ack packet type |
| ccontrol | Congestion control structure maintained for each socket |
| client_msg | Structure used as a client message from the client rcp program |
| close_pack | Close packet type |
| context_t | Context structure used by the reliability functino to evaluate reliability for a frame |
| data_pack | Data packet type |
| frame | Frame structure holding fragments, their indicators, and other info |
| frame_link | Frame link in a frames linked list |
| frame_list | Frames linked list such as recvd frames, or send frames |
| frame_stats | Frame stats structure used by the context_t structure for functional reliability |
| interval | Interval structure to track which intervals have not received any data yet (missing data intervals) |
| intervals | Interval structure to track which intervals have not received any data yet (missing data intervals) |
| node | A node in a btree maintaining min delay history |
| packet | Generic vfer packet type |
| path_mtu | Structure holding values related to path MTU discovery |
| phead_t | VSL packet header |
| queued_conn | A queued connection link in the accept_queue doubly linked list |
| rcp_info | Structure used for parsing the command line arguments and options of test_rcp |
| rcpd_info | Info structure used for parsing the command line arguments and options of test_rcpd |
| request_pack | Request packet type |
| response_pack | Response packet type |
| server_msg | Structure used as a server message reply from the server rcpd program to the client msg |
| ssh_msg_port | Message containing the port |
| ssh_msg_secret | Message containing the secret |
| tree | A btree maitaining min delay history in an AVL balancing algorithmic fashion |
| vfer_sock | Vfer socket structure holding everything associated with a single vfer connection |
| vfer_socks | Sockets array with a protecting mutex, underlying fd sets, and more |
| vfer_stats | VFER stats structure maintained for each socket |
| vsl_client_msg | Structure used as a client message from the client rcp program |
| vsl_rcp_info | Structure used for parsing the command line arguments and options of test_rcp |
| vsl_rcpd_info | Info structure used for parsing the command line arguments and options of test_rcpd |
| vsl_server_msg | Structure used as a server message reply from the server rcpd program to the client msg |
| vsl_sock | VSL socket structure |
