Function uclcli::compress_into_buffer

pub fn compress_into_buffer(
    src: &[u8], 
    dst: &mut [u8]
) -> Result<u32, UclErrorKind>

NRV compress a buffer into another buffer.

If dst is not big enough to hold the compressed buffer, this will return Err(UclErrorKind::DstTooSmall). See also minimum_compression_buffer_size to find out how big dst should be. If compression succeeded, this will return the number of usable bytes in dst.

Panics

If ucl_init was not called prior to calling this function, this function will panic.

let src = [0; 1024];
let mut dst = vec![0xffu8; uclcli::minimum_compression_buffer_size(src.len())];

let result = uclcli::compress_into_buffer(&src, &mut dst);
assert_eq!(result, Ok(12));

let nb = result.unwrap() as usize;

assert_eq!(&dst[..nb], b"\x92\x00\xaa\xa1\x00\x00\x00\x00\x00\x04\x80\xff");
assert_eq!(&dst[nb..], &vec![0xffu8; dst.len() - nb]);