debuggers.hg

view tools/blktap2/drivers/tapdisk-driver.h @ 22848:6341fe0f4e5a

Added tag 4.1.0-rc2 for changeset 9dca60d88c63
author Keir Fraser <keir@xen.org>
date Tue Jan 25 14:06:55 2011 +0000 (2011-01-25)
parents 9009f9f76441
children
line source
1 /*
2 * Copyright (c) 2008, XenSource Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of XenSource Inc. nor the names of its contributors
13 * may be used to endorse or promote products derived from this software
14 * without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
20 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
21 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
23 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
24 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
25 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
26 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28 #ifndef _TAPDISK_DRIVER_H_
29 #define _TAPDISK_DRIVER_H_
31 #include "tapdisk.h"
32 #include "scheduler.h"
33 #include "tapdisk-queue.h"
35 #define TD_DRIVER_OPEN 0x0001
36 #define TD_DRIVER_RDONLY 0x0002
38 struct td_driver_handle {
39 int type;
40 char *name;
42 int storage;
44 int refcnt;
45 td_flag_t state;
47 td_disk_info_t info;
49 void *data;
50 const struct tap_disk *ops;
52 struct list_head next;
53 };
55 td_driver_t *tapdisk_driver_allocate(int, char *, td_flag_t, int);
56 void tapdisk_driver_free(td_driver_t *);
58 void tapdisk_driver_queue_tiocb(td_driver_t *, struct tiocb *);
60 void tapdisk_driver_debug(td_driver_t *);
62 #endif