Function parse_frame_len

src/pgwire-common/src/codec.rs:214–228

(src: &[u8])

}

pub fn parse_frame_len(src: &[u8]) -> Result<usize, io::Error> {
    let n = usize::cast_from(NetworkEndian::read_u32(src));
    if n > netio::MAX_FRAME_SIZE {
        return Err(io::Error::new(
            io::ErrorKind::InvalidData,
            netio::FrameTooBig,
        ));
    } else if n < 4 {
        return Err(io::Error::new(
            io::ErrorKind::InvalidInput,
            "invalid frame length",
        ));
    }
    Ok(n - 4)
}

/// Decodes data within pgwire messages.
///