blob: 9473b84f24b24e397643fafea035af9aad255a13 [file] [log] [blame]
Eric Van Hensbergen426cc912005-09-09 13:04:22 -07001/*
2 * linux/fs/9p/mux.h
3 *
4 * Multiplexer Definitions
5 *
Latchesar Ionkov3cf64292006-01-08 01:04:58 -08006 * Copyright (C) 2005 by Latchesar Ionkov <lucho@ionkov.net>
Eric Van Hensbergen426cc912005-09-09 13:04:22 -07007 * Copyright (C) 2004 by Eric Van Hensbergen <ericvh@gmail.com>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to:
21 * Free Software Foundation
22 * 51 Franklin Street, Fifth Floor
23 * Boston, MA 02111-1301 USA
24 *
25 */
26
Latchesar Ionkov3cf64292006-01-08 01:04:58 -080027struct v9fs_mux_data;
Eric Van Hensbergen426cc912005-09-09 13:04:22 -070028
Latchesar Ionkov3cf64292006-01-08 01:04:58 -080029/**
30 * v9fs_mux_req_callback - callback function that is called when the
31 * response of a request is received. The callback is called from
32 * a workqueue and shouldn't block.
33 *
34 * @a - the pointer that was specified when the request was send to be
35 * passed to the callback
36 * @tc - request call
37 * @rc - response call
38 * @err - error code (non-zero if error occured)
39 */
40typedef void (*v9fs_mux_req_callback)(void *a, struct v9fs_fcall *tc,
41 struct v9fs_fcall *rc, int err);
Eric Van Hensbergen426cc912005-09-09 13:04:22 -070042
Latchesar Ionkov1dac06b2006-01-08 01:05:02 -080043int v9fs_mux_global_init(void);
Latchesar Ionkov3cf64292006-01-08 01:04:58 -080044void v9fs_mux_global_exit(void);
Eric Van Hensbergen426cc912005-09-09 13:04:22 -070045
Latchesar Ionkov3cf64292006-01-08 01:04:58 -080046struct v9fs_mux_data *v9fs_mux_init(struct v9fs_transport *trans, int msize,
47 unsigned char *extended);
48void v9fs_mux_destroy(struct v9fs_mux_data *);
Eric Van Hensbergen426cc912005-09-09 13:04:22 -070049
Latchesar Ionkov3cf64292006-01-08 01:04:58 -080050int v9fs_mux_send(struct v9fs_mux_data *m, struct v9fs_fcall *tc);
51struct v9fs_fcall *v9fs_mux_recv(struct v9fs_mux_data *m);
52int v9fs_mux_rpc(struct v9fs_mux_data *m, struct v9fs_fcall *tc, struct v9fs_fcall **rc);
53int v9fs_mux_rpcnb(struct v9fs_mux_data *m, struct v9fs_fcall *tc,
54 v9fs_mux_req_callback cb, void *a);
55
56void v9fs_mux_flush(struct v9fs_mux_data *m, int sendflush);
57void v9fs_mux_cancel(struct v9fs_mux_data *m, int err);
Latchesar Ionkov1dac06b2006-01-08 01:05:02 -080058int v9fs_errstr2errno(char *errstr, int len);