maygvl_copy_stream_read 10449 io.c                       ss = maygvl_copy_stream_read(0, stp, buf, len, src_offset);
maygvl_copy_stream_read 10454 io.c                       ss = maygvl_copy_stream_read(0, stp, buf, len, (off_t)-1);
maygvl_copy_stream_read 10527 io.c                       ss = maygvl_copy_stream_read(1, stp, RSTRING_PTR(buf), l, off);