mdw@git.distorted.org.uk Git - disorder/blob - 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 */