maygvl_copy_stream_read 7560 io.c                       ss = maygvl_copy_stream_read(stp, buf, len, src_offset);
maygvl_copy_stream_read 7565 io.c                       ss = maygvl_copy_stream_read(stp, buf, len, (off_t)-1);
maygvl_copy_stream_read 7639 io.c                       ss = maygvl_copy_stream_read(stp, RSTRING_PTR(buf), l, off);