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
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
/*
* Copyright (C) 2003-2013 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_CLIENT_INTERNAL_HXX
#define MPD_CLIENT_INTERNAL_HXX
#include "check.h"
#include "Client.hxx"
#include "ClientMessage.hxx"
#include "CommandListBuilder.hxx"
#include "command.h"
#include "util/PeakBuffer.hxx"
#include <set>
#include <string>
#include <list>
#include <glib.h>
#undef G_LOG_DOMAIN
#define G_LOG_DOMAIN "client"
enum {
CLIENT_MAX_SUBSCRIPTIONS = 16,
CLIENT_MAX_MESSAGES = 64,
};
struct Partition;
class PeakBuffer;
class Client {
public:
Partition &partition;
struct playlist &playlist;
struct player_control *player_control;
GIOChannel *channel;
guint source_id;
/** the buffer for reading lines from the #channel */
struct fifo_buffer *input;
unsigned permission;
/** the uid of the client process, or -1 if unknown */
int uid;
/**
* How long since the last activity from this client?
*/
GTimer *last_activity;
CommandListBuilder cmd_list;
unsigned int num; /* client number */
PeakBuffer output_buffer;
/** is this client waiting for an "idle" response? */
bool idle_waiting;
/** idle flags pending on this client, to be sent as soon as
the client enters "idle" */
unsigned idle_flags;
/** idle flags that the client wants to receive */
unsigned idle_subscriptions;
/**
* A list of channel names this client is subscribed to.
*/
std::set<std::string> subscriptions;
/**
* The number of subscriptions in #subscriptions. Used to
* limit the number of subscriptions.
*/
unsigned num_subscriptions;
/**
* A list of messages this client has received.
*/
std::list<ClientMessage> messages;
Client(Partition &partition,
int fd, int uid, int num);
~Client();
gcc_pure
bool IsSubscribed(const char *channel_name) const {
return subscriptions.find(channel_name) != subscriptions.end();
}
gcc_pure
bool IsExpired() const {
return channel == nullptr;
}
void Close();
void SetExpired();
};
extern unsigned int client_max_connections;
extern int client_timeout;
extern size_t client_max_command_list_size;
extern size_t client_max_output_buffer_size;
/**
* Schedule an "expired" check for all clients: permanently delete
* clients which have been set "expired" with client_set_expired().
*/
void
client_schedule_expire(void);
/**
* Removes a scheduled "expired" check.
*/
void
client_deinit_expire(void);
enum command_return
client_read(Client *client);
enum command_return
client_process_line(Client *client, char *line);
void
client_write_deferred(Client *client);
void
client_write_output(Client *client);
gboolean
client_in_event(GIOChannel *source, GIOCondition condition,
gpointer data);
#endif
|
