Function zx_channel_read 

pub unsafe extern "C" fn zx_channel_read(
    handle: u32,
    options: u32,
    bytes: *mut u8,
    handles: *mut u32,
    num_bytes: u32,
    num_handles: u32,
    actual_bytes: *mut u32,
    actual_handles: *mut u32,
) -> i32