Function write_str

nodedb/src/data/executor/msgpack_utils.rs:4–19

Write a msgpack string header + bytes into `buf`.

(buf: &mut Vec<u8>, s: &str)

/// Write a msgpack string header + bytes into `buf`.
pub(super) fn write_str(buf: &mut Vec<u8>, s: &str) {
    let len = s.len();
    if len < 32 {
        buf.push(0xA0 | len as u8);
    } else if len <= u8::MAX as usize {
        buf.push(0xD9);
        buf.push(len as u8);
    } else if len <= u16::MAX as usize {
        buf.push(0xDA);
        buf.extend_from_slice(&(len as u16).to_be_bytes());
    } else {
        buf.push(0xDB);
        buf.extend_from_slice(&(len as u32).to_be_bytes());
    }
    buf.extend_from_slice(s.as_bytes());
}