Function ws_log_buffer_full 

pub unsafe extern "C" fn ws_log_buffer_full(
    domain: *const c_char,
    level: ws_log_level,
    file: *const c_char,
    line: c_long,
    func: *const c_char,
    buffer: *const u8,
    size: usize,
    max_bytes_len: usize,
    msg: *const c_char,
)