To be able to create applications with user friendly feedback, we need be able to provide receive status information. Typical ETP transfer may take seconds or even hours. To give user some clue or show a progress bar, the stack should push status updates. Same as for the TX information, the socket error queue will be used with following new signals: - J1939_EE_INFO_RX_RTS - received and accepted request to send signal. - J1939_EE_INFO_RX_DPO - received data package offset signal - J1939_EE_INFO_RX_ABORT - RX session was aborted Instead of completion signal, user will get data package. To activate this signals, application should set SOF_TIMESTAMPING_RX_SOFTWARE to the SO_TIMESTAMPING socket option. This will avoid unpredictable application behavior for the old software.
Showing the changes to include/uapi (1 of 4 files). Show all
Unified · Split
| @@ -78,11 +78,20 @@ enum { · 77 unmodified lines | ||
| 78 | 78 | enum { |
| 79 | 79 | J1939_NLA_PAD, |
| 80 | 80 | J1939_NLA_BYTES_ACKED, |
| 81 | + J1939_NLA_TOTAL_SIZE, | |
| 82 | + J1939_NLA_PGN, | |
| 83 | + J1939_NLA_SRC_NAME, | |
| 84 | + J1939_NLA_DEST_NAME, | |
| 85 | + J1939_NLA_SRC_ADDR, | |
| 86 | + J1939_NLA_DEST_ADDR, | |
| 81 | 87 | }; |
| 82 | 88 | |
| 83 | 89 | enum { |
| 84 | 90 | J1939_EE_INFO_NONE, |
| 85 | 91 | J1939_EE_INFO_TX_ABORT, |
| 92 | + J1939_EE_INFO_RX_RTS, | |
| 93 | + J1939_EE_INFO_RX_DPO, | |
| 94 | + J1939_EE_INFO_RX_ABORT, | |
| 86 | 95 | }; |
| 87 | 96 | |
| 88 | 97 | struct j1939_filter { |