1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
/*
* Copyright (C) 2003-2011 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h" /* must be first for large file support */
#include "UpdateRemove.hxx"
#include "Playlist.hxx"
#include "GlobalEvents.hxx"
#include "thread/Mutex.hxx"
#include "thread/Cond.hxx"
#include "song.h"
#include "Main.hxx"
#include "Instance.hxx"
#ifdef ENABLE_SQLITE
#include "StickerDatabase.hxx"
#include "SongSticker.hxx"
#endif
#include <glib.h>
#include <assert.h>
static const struct song *removed_song;
static Mutex remove_mutex;
static Cond remove_cond;
/**
* Safely remove a song from the database. This must be done in the
* main task, to be sure that there is no pointer left to it.
*/
static void
song_remove_event(void)
{
char *uri;
assert(removed_song != NULL);
uri = song_get_uri(removed_song);
g_message("removing %s", uri);
g_free(uri);
#ifdef ENABLE_SQLITE
/* if the song has a sticker, remove it */
if (sticker_enabled())
sticker_song_delete(removed_song);
#endif
instance->DeleteSong(*removed_song);
/* clear "removed_song" and send signal to update thread */
remove_mutex.lock();
removed_song = NULL;
remove_cond.signal();
remove_mutex.unlock();
}
void
update_remove_global_init(void)
{
GlobalEvents::Register(GlobalEvents::DELETE, song_remove_event);
}
void
update_remove_song(const struct song *song)
{
assert(removed_song == NULL);
removed_song = song;
GlobalEvents::Emit(GlobalEvents::DELETE);
remove_mutex.lock();
while (removed_song != NULL)
remove_cond.wait(remove_mutex);
remove_mutex.unlock();
}
|
