mdw@git.distorted.org.uk Git - disorder/blob - lib/queue.h

   1 /*
   2  * This file is part of DisOrder.
   3  * Copyright (C) 2004-2008 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 3 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,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU 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, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #ifndef QUEUE_H
  20 #define QUEUE_H
  21
  22 #include <time.h>
  23
  24
  25 enum playing_state {
  26   playing_failed,                       /* failed to play */
  27   playing_isscratch,                    /* this is a scratch track */
  28   playing_no_player,                    /* couldn't find a player */
  29   playing_ok,                           /* played OK */
  30   playing_paused,                       /* started but paused */
  31   playing_quitting,                     /* interrupt because server quit */
  32   playing_random,                       /* unplayed randomly chosen track */
  33   playing_scratched,                    /* was scratched */
  34   playing_started,                      /* started to play */
  35   playing_unplayed                      /* haven't played this track yet */
  36 };
  37
  38 extern const char *playing_states[];
  39
  40 /* queue entries form a circular doubly-linked list */
  41 struct queue_entry {
  42   struct queue_entry *next;             /* next entry */
  43   struct queue_entry *prev;             /* previous entry */
  44   const char *track;                    /* path to track */
  45   const char *submitter;                /* name of submitter */
  46   time_t when;                          /* time submitted */
  47   time_t played;                        /* when played */
  48   enum playing_state state;             /* state */
  49   long wstat;                           /* wait status */
  50   const char *scratched;                /* scratched by */
  51   const char *id;                       /* queue entry ID */
  52   time_t expected;                      /* expected started time */
  53   /* for playing or soon-to-be-played tracks only: */
  54   unsigned long type;                   /* type word from plugin */
  55   const struct plugin *pl;              /* plugin that's playing this track */
  56   void *data;                           /* player data */
  57   long sofar;                           /* how much played so far */
  58   int prepared;                         /* true when connected to speaker */
  59   /* For DISORDER_PLAYER_PAUSES only: */
  60   time_t lastpaused, lastresumed;       /* when last paused/resumed, or 0 */
  61   long uptopause;                       /* how much played up to last pause */
  62   /* For Disobedience */
  63   struct queuelike *ql;                 /* owning queue */
  64 };
  65
  66 void queue_insert_entry(struct queue_entry *b, struct queue_entry *n);
  67 void queue_delete_entry(struct queue_entry *node);
  68
  69 int queue_unmarshall(struct queue_entry *q, const char *s,
  70                      void (*error_handler)(const char *, void *),
  71                      void *u);
  72 /* unmarshall UTF-8 string @s@ into @q@ */
  73
  74 int queue_unmarshall_vec(struct queue_entry *q, int nvec, char **vec,
  75                      void (*error_handler)(const char *, void *),
  76                      void *u);
  77 /* unmarshall pre-split string @vec@ into @q@ */
  78
  79 char *queue_marshall(const struct queue_entry *q);
  80 /* marshall @q@ into a UTF-8 string */
  81
  82 #endif /* QUEUE_H */
  83
  84 /*
  85 Local Variables:
  86 c-basic-offset:2
  87 comment-column:40
  88 fill-column:79
  89 End:
  90 */