debuggers.hg

view tools/blktap2/drivers/tapdisk-server.h @ 20915:07f33d124053

blktap2: Sort out tapdisk IPC init.

Move I/O and event callbacks setup out of tapdisk-server, into
tapdisk-ipc.

Signed-off-by: Daniel Stodden <daniel.stodden@citrix.com>
author Keir Fraser <keir.fraser@citrix.com>
date Fri Jan 29 08:53:52 2010 +0000 (2010-01-29)
parents 1c627434605e
children f2ef85551a09
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_SERVER_H_
29 #define _TAPDISK_SERVER_H_
31 #include "tapdisk-vbd.h"
32 #include "tapdisk-queue.h"
34 struct tap_disk *tapdisk_server_find_driver_interface(int);
36 td_image_t *tapdisk_server_get_shared_image(td_image_t *);
38 td_vbd_t *tapdisk_server_get_vbd(td_uuid_t);
39 void tapdisk_server_add_vbd(td_vbd_t *);
40 void tapdisk_server_remove_vbd(td_vbd_t *);
42 void tapdisk_server_queue_tiocb(struct tiocb *);
44 void tapdisk_server_check_state(void);
46 event_id_t tapdisk_server_register_event(char, int, int, event_cb_t, void *);
47 void tapdisk_server_unregister_event(event_id_t);
48 void tapdisk_server_set_max_timeout(int);
50 int tapdisk_server_initialize(const char *, const char *);
51 int tapdisk_server_run(void);
53 #define TAPDISK_TIOCBS (TAPDISK_DATA_REQUESTS + 50)
55 typedef struct tapdisk_server {
56 int run;
57 td_ipc_t ipc;
58 struct list_head vbds;
59 scheduler_t scheduler;
60 struct tqueue aio_queue;
61 event_id_t aio_queue_event_id;
62 } tapdisk_server_t;
64 #endif