[−][src]Function postcard::to_slice_cobs

pub fn to_slice_cobs<'a, 'b, T: ?Sized>(
    value: &'b T, 
    buf: &'a mut [u8]
) -> Result<&'a mut [u8]> where
    T: Serialize, 

Serialize a T to the given slice, with the resulting slice containing data in a serialized then COBS encoded format. The terminating sentinel 0x00 byte is included in the output buffer.

When successful, this function returns the slices containing:

  1. A slice that contains the serialized and encoded message
  2. A slice that contains the unused portion of the given buffer

Example

use postcard::to_slice_cobs;
let mut buf = [0u8; 32];

let used = to_slice_cobs(&false, &mut buf).unwrap();
assert_eq!(used, &[0x01, 0x01, 0x00]);

let used = to_slice_cobs("1", &mut buf).unwrap();
assert_eq!(used, &[0x03, 0x01, b'1', 0x00]);

let used = to_slice_cobs("Hi!", &mut buf).unwrap();
assert_eq!(used, &[0x05, 0x03, b'H', b'i', b'!', 0x00]);

let data: &[u8] = &[0x01u8, 0x00, 0x20, 0x30];
let used = to_slice_cobs(data, &mut buf).unwrap();
assert_eq!(used, &[0x03, 0x04, 0x01, 0x03, 0x20, 0x30, 0x00]);