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
|
/*
* Copyright (C) 2003-2014 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.
*/
#ifndef MPD_UPDATE_QUEUE_HXX
#define MPD_UPDATE_QUEUE_HXX
#include "check.h"
#include "Compiler.h"
#include <string>
#include <list>
class SimpleDatabase;
class Storage;
struct UpdateQueueItem {
SimpleDatabase *db;
Storage *storage;
std::string path_utf8;
unsigned id;
bool discard;
UpdateQueueItem():id(0) {}
UpdateQueueItem(SimpleDatabase &_db,
Storage &_storage,
const char *_path, bool _discard,
unsigned _id)
:db(&_db), storage(&_storage), path_utf8(_path),
id(_id), discard(_discard) {}
bool IsDefined() const {
return id != 0;
}
};
class UpdateQueue {
static constexpr unsigned MAX_UPDATE_QUEUE_SIZE = 32;
std::list<UpdateQueueItem> update_queue;
public:
gcc_nonnull_all
bool Push(SimpleDatabase &db, Storage &storage,
const char *path, bool discard, unsigned id);
UpdateQueueItem Pop();
void Clear() {
update_queue.clear();
}
gcc_nonnull_all
void Erase(SimpleDatabase &db);
gcc_nonnull_all
void Erase(Storage &storage);
};
#endif
|
