Function libc::unix::linux_like::linux::copy_file_range

source ยท 
pub unsafe extern "C" fn copy_file_range(
    fd_in: c_int,
    off_in: *mut off64_t,
    fd_out: c_int,
    off_out: *mut off64_t,
    len: size_t,
    flags: c_uint,
) -> ssize_t