1 /* $Id: rootblk.c,v 1.4.2.1 2006-08-14 10:39:03 adam Exp $
2 Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002
5 This file is part of the Zebra server.
7 Zebra is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
12 Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
26 * Read and write the blocktype header.
33 int is_rb_write(isam_blocktype *ib, is_type_header *hd)
35 int pt = 0, ct = 0, towrite;
37 while ((towrite = sizeof(*hd) - pt) > 0)
39 if (towrite > bf_blocksize(ib->bf))
40 towrite = bf_blocksize(ib->bf);
41 if (bf_write(ib->bf, ct, 0, towrite, (char *)hd + pt) < 0)
43 pt += bf_blocksize(ib->bf);
49 int is_rb_read(isam_blocktype *ib, is_type_header *hd)
51 int pt = 0, ct = 0, rs, toread;
53 while ((toread = sizeof(*hd) - pt) > 0)
55 if (toread > bf_blocksize(ib->bf))
56 toread = bf_blocksize(ib->bf);
57 if ((rs = bf_read(ib->bf, ct, 0, toread, (char*)hd + pt)) <= 0)
59 pt += bf_blocksize(ib->bf);