From e5a338ae64b458115eaa132d4c64cedff3e745eb Mon Sep 17 00:00:00 2001
From: scbj <scbj@zhaw.ch>
Date: Fri, 18 Jul 2025 10:06:09 +0200
Subject: [PATCH] (rust) tested `cobs` crate

---
 rust/Cargo.toml  |  1 +
 rust/src/main.rs | 36 +++++++++++++-----------------------
 2 files changed, 14 insertions(+), 23 deletions(-)

diff --git a/rust/Cargo.toml b/rust/Cargo.toml
index 6c59bd8..9941cf7 100644
--- a/rust/Cargo.toml
+++ b/rust/Cargo.toml
@@ -8,6 +8,7 @@ anyhow = "1.0"
 chrono = { version = "0.4.41", features = ["serde"] }
 ciborium = "0.2.2"
 clap = { version = "4.5.0", features = ["derive"] }
+cobs = { version = "0.4.0" }
 dirs = "5.0.1"
 serde = { version = "1.0.219", features = ["derive"] }
 thiserror = "2.0.12"
diff --git a/rust/src/main.rs b/rust/src/main.rs
index bf2b7ee..4c2c613 100644
--- a/rust/src/main.rs
+++ b/rust/src/main.rs
@@ -1,39 +1,29 @@
 #![allow(dead_code, unused)]
 
 use chrono::{DateTime, Local, Utc};
-use dirs::config_dir;
-use serde::{self, Deserialize, Serialize};
 use ciborium;
+use cobs;
+use dirs::config_dir;
+use serde::{Deserialize, Serialize};
 
 #[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct TestStruct {
-    name: String,
-    id: u128,
-    time: DateTime<Utc>,
-    pos: SubStruct,
-}
-
-#[derive(Clone, Debug, Deserialize, Serialize)]
-pub struct SubStruct {
-    x: i32,
-    y: i32,
+    pub test_int: i32,
+    pub test_string: String,
 }
 
 fn main() -> anyhow::Result<()> {
-    let mut buffer: Vec<u8> = Vec::new();
-    let test = TestStruct {
-        name: "ronald yellowegger".to_owned(),
-        id: 029854u128,
-        time: chrono::Utc::now(),
-        pos: SubStruct { x: 8, y: -3 },
-    };
+    let test_var: TestStruct = TestStruct { test_int: 0, test_string: "hello\0 world".to_owned() };
+    let mut serialised: Vec<u8> = Vec::with_capacity(1024);
+    let mut framed = vec![0u8; 1024];
 
-    _ = ciborium::into_writer(&test, &mut buffer)?;
+    _ = ciborium::into_writer(&test_var, &mut serialised);
 
-    println!("{:02x?}", buffer);
+    println!("cbor: {:02x?}", &serialised[..]);
 
-    let cbor: TestStruct = ciborium::from_reader(std::io::Cursor::new(&mut buffer))?;
-    println!("deserialised cbor struct = {:#?}", cbor);
+     let num = cobs::encode(&serialised[..], &mut framed);
+
+    println!("cobs: {:02x?}", &framed[..num]);
 
     Ok(())
 }