2 * Copyright (c) 2007, 2008, 2009, 2010 Zmanda, Inc. All Rights Reserved.
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License version 2 as published
6 * by the Free Software Foundation.
8 * This program is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
10 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * You should have received a copy of the GNU General Public License along
14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 * Contact information: Zmanda Inc., 465 S. Mathilda Ave., Suite 300
18 * Sunnyvale, CA 94085, USA, or: http://www.zmanda.com
24 #include "tape-device.h"
27 #ifdef HAVE_SYS_TAPE_H
28 # include <sys/tape.h>
30 #ifdef HAVE_SYS_MTIO_H
31 # include <sys/mtio.h>
34 /* This file declares functions which are implemented in each of tape-*.c. The
35 * appropriate C file is selected at configure time. */
37 /* Real Operations (always return FALSE if not implemented) */
38 gboolean tape_rewind(int fd);
39 gboolean tape_fsf(int fd, guint count);
40 gboolean tape_bsf(int fd, guint count);
41 gboolean tape_fsr(int fd, guint count);
42 gboolean tape_bsr(int fd, guint count);
43 gint tape_fileno(int fd);
45 /* tape_fileno returns tape position file number, or one of these: */
46 #define TAPE_OP_ERROR -1
47 #define TAPE_POSITION_UNKNOWN -2
49 /* Sets attributes of the device to indicate which of the above operations
50 * are available in this device. */
51 void tape_device_detect_capabilities(TapeDevice * self);
53 /* returns a fileno like tape_fileno */
54 gint tape_eod(int fd);
56 gboolean tape_weof(int fd, guint8 count);
57 gboolean tape_setcompression(int fd, gboolean on);
59 gboolean tape_offl(int fd);
61 DeviceStatusFlags tape_is_tape_device(int fd);
62 DeviceStatusFlags tape_is_ready(int fd, TapeDevice *t_self);