2 * This file is part of DisOrder.
3 * Copyright (C) 2004-2008 Richard Kettlewell
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.
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.
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/>.
18 #include "disorder-server.h"
20 /* the head of the queue is played next, so normally we add to the tail */
21 struct queue_entry qhead = {
26 /* the head of the recent list is the oldest thing, the tail the most recently
28 struct queue_entry phead = {
35 void queue_fix_sofar(struct queue_entry *q) {
38 /* Fake up SOFAR field for currently-playing tracks that don't have it filled
39 * in by the speaker process. XXX this horrible bodge should go away when we
40 * have a more general implementation of pausing as that field will always
41 * have to be right for the playing track. */
42 if((q->state == playing_started
43 || q->state == playing_paused)
44 && q->type & DISORDER_PLAYER_PAUSES
45 && (q->type & DISORDER_PLAYER_TYPEMASK) != DISORDER_PLAYER_RAW) {
47 if(q->uptopause == -1) /* Don't know how far thru. */
49 else if(q->lastresumed) /* Has been paused and resumed. */
50 sofar = q->uptopause + time(0) - q->lastresumed;
51 else /* Currently paused. */
53 } else /* Never been paused. */
54 sofar = time(0) - q->played;
59 static void queue_read_error(const char *msg,
61 fatal(0, "error parsing queue %s: %s", (const char *)u, msg);
64 static void queue_do_read(struct queue_entry *head, const char *path) {
67 struct queue_entry *q;
70 if(!(fp = fopen(path, "r"))) {
72 return; /* no queue */
73 fatal(errno, "error opening %s", path);
75 head->next = head->prev = head;
76 while(!inputline(path, fp, &buffer, '\n')) {
77 if(buffer[0] == '#') {
78 /* Version indicator */
79 version = atoi(buffer + 1);
82 q = xmalloc(sizeof *q);
83 queue_unmarshall(q, buffer, queue_read_error, (void *)path);
85 /* Fix up origin field as best we can; will be wrong in some cases but
86 * hopefully not too horribly so. */
87 q->origin = q->submitter ? origin_picked : origin_random;
89 case playing_isscratch:
90 q->origin = origin_scratch;
93 q->state = playing_unplayed;
102 fatal(0, "incomplete queue entry in %s", path);
103 queue_insert_entry(head->prev, q);
105 if(ferror(fp)) fatal(errno, "error reading %s", path);
109 void queue_read(void) {
110 queue_do_read(&qhead, config_get_file("queue"));
113 void recent_read(void) {
114 struct queue_entry *q;
116 queue_do_read(&phead, config_get_file("recent"));
117 /* reset pcount after loading */
126 static void queue_do_write(const struct queue_entry *head, const char *path) {
129 struct queue_entry *q;
131 byte_xasprintf(&tmp, "%s.new", path);
132 if(!(fp = fopen(tmp, "w"))) fatal(errno, "error opening %s", tmp);
133 /* Save version indicator */
134 if(fprintf(fp, "#1\n") < 0)
135 fatal(errno, "error writing %s", tmp);
136 for(q = head->next; q != head; q = q->next)
137 if(fprintf(fp, "%s\n", queue_marshall(q)) < 0)
138 fatal(errno, "error writing %s", tmp);
139 if(fclose(fp) < 0) fatal(errno, "error closing %s", tmp);
140 if(rename(tmp, path) < 0) fatal(errno, "error replacing %s", path);
143 void queue_write(void) {
144 queue_do_write(&qhead, config_get_file("queue"));
147 void recent_write(void) {
148 queue_do_write(&phead, config_get_file("recent"));
151 struct queue_entry *queue_find(const char *key) {
152 struct queue_entry *q;
155 q != &qhead && strcmp(q->track, key) && strcmp(q->id, key);
158 return q != &qhead ? q : 0;