A library that support efficient parsing & writing log-messages encoded as Diagnositic Log and Trace messages.
Add this to your Cargo.toml:
[dependencies]
dlt_core = "0.9"This is an example of how to parse a message and serialize it back to a byte array.
use dlt_core::dlt_parse::{dlt_message, ParsedMessage};
fn main() {
let raw1: Vec<u8> = vec![
// --------------- storage header
/* DLT + 0x01 */ 0x44, 0x4C, 0x54, 0x01,
/* timestamp sec */ 0x2B, 0x2C, 0xC9, 0x4D, /* timestamp us */ 0x7A, 0xE8, 0x01,
0x00, /* ecu id "ECU" */ 0x45, 0x43, 0x55, 0x00,
// --------------- header
/* header-type 0b0010 0001 */ 0x21,
/* extended header | |||^ */
/* MSBF: 0 little endian | ||^ */
/* WEID: 0 no ecu id | |^ */
/* WSID: 0 sess id | ^ */
/* WTMS: 0 no timestamp ^ */
/* version nummber 1 ^^^ */
/* message counter */
0x0A, /* length = 0 */ 0x00, 0x13,
// --------------- extended header
0x41, // MSIN 0b0100 0001 => verbose, MST log, ApplicationTraceType::State
0x01, // arg count
0x4C, 0x4F, 0x47, 0x00, // app id LOG
0x54, 0x45, 0x53, 0x32, // context id TES2
// --------------- payload
/* type info 0b0001 0000 => type bool */ 0x10,
0x00, 0x00, 0x00, 0x6F,
];
match dlt_message(&raw1[..], None, true) {
Ok((_rest, ParsedMessage::Item(msg))) => {
let msg_bytes = msg.as_bytes();
assert_eq!(raw1, msg_bytes);
}
_ => panic!("could not parse message"),
}
}