Function lsl_sys::lsl_pull_chunk_str

pub unsafe extern "C" fn lsl_pull_chunk_str(
    in_: lsl_inlet, 
    data_buffer: *mut *mut c_char, 
    timestamp_buffer: *mut f64, 
    data_buffer_elements: c_ulong, 
    timestamp_buffer_elements: c_ulong, 
    timeout: f64, 
    ec: *mut i32
) -> c_ulong