ef1e849654db431ec8bb57fd5e64bf2e073a076c
[disorder] / lib / speaker.h
1 /*
2 * This file is part of DisOrder
3 * Copyright (C) 2005 Richard Kettlewell
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
18 * USA
19 */
20
21 #ifndef SPEAKER_H
22 #define SPEAKER_H
23
24 struct speaker_message {
25 int type; /* message type */
26 long data; /* whatever */
27 char id[24]; /* ID including terminator */
28 };
29
30 /* messages from the main DisOrder server */
31 #define SM_PREPARE 0 /* prepare ID */
32 #define SM_PLAY 1 /* play ID */
33 #define SM_PAUSE 2 /* pause current track */
34 #define SM_RESUME 3 /* resume current track */
35 #define SM_CANCEL 4 /* cancel ID */
36 #define SM_RELOAD 5 /* reload configuration */
37
38 /* messages from the speaker */
39 #define SM_PAUSED 128 /* paused ID, DATA seconds in */
40 #define SM_FINISHED 129 /* finished ID */
41 #define SM_PLAYING 131 /* playing ID, DATA seconds in */
42
43 void speaker_send(int fd, const struct speaker_message *sm, int datafd);
44 /* Send a message. DATAFD is passed too if not -1. Does not close DATAFD. */
45
46 int speaker_recv(int fd, struct speaker_message *sm, int *datafd);
47 /* Receive a message. If DATAFD is not null then can receive an FD. Return 0
48 * on EOF, +ve if a message is read, -1 on EAGAIN, terminates on any other
49 * error. */
50
51 #endif /* SPEAKER_H */
52
53 /*
54 Local Variables:
55 c-basic-offset:2
56 comment-column:40
57 fill-column:79
58 indent-tabs-mode:nil
59 End:
60 */
61 /* arch-tag:QpuCTaKRDXEwz+Df/Jt+Wg */