aboutsummaryrefslogtreecommitdiffstats
path: root/src/output/httpd_internal.h
blob: d9c764bfdc070edfba870cb6f05a504f89e49cf5 (plain) (blame)
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
/*
 * 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.
 */

/** \file
 *
 * Internal declarations for the "httpd" audio output plugin.
 */

#ifndef MPD_OUTPUT_HTTPD_INTERNAL_H
#define MPD_OUTPUT_HTTPD_INTERNAL_H

#include "timer.h"

#include <glib.h>

#include <stdbool.h>

struct httpd_client;

struct httpd_output {
	/**
	 * True if the audio output is open and accepts client
	 * connections.
	 */
	bool open;

	/**
	 * The configured encoder plugin.
	 */
	struct encoder *encoder;

	/**
	 * Number of bytes which were fed into the encoder, without
	 * ever receiving new output.  This is used to estimate
	 * whether MPD should manually flush the encoder, to avoid
	 * buffer underruns in the client.
	 */
	size_t unflushed_input;

	/**
	 * The MIME type produced by the #encoder.
	 */
	const char *content_type;

	/**
	 * This mutex protects the listener socket and the client
	 * list.
	 */
	GMutex *mutex;

	/**
	 * A #Timer object to synchronize this output with the
	 * wallclock.
	 */
	Timer *timer;

	/**
	 * The listener socket.
	 */
	struct server_socket *server_socket;

	/**
	 * The header page, which is sent to every client on connect.
	 */
	struct page *header;

	/**
	 * The metadata, which is sent to every client.
	 */
	struct page *metadata;

	/**
	 * The configured name.
	 */
	char const *name;
	/**
	 * The configured genre.
	 */
	char const *genre;
	/**
	 * The configured website address.
	 */
	char const *website;

	/**
	 * A linked list containing all clients which are currently
	 * connected.
	 */
	GList *clients;

	/**
	 * A temporary buffer for the httpd_output_read_page()
	 * function.
	 */
	char buffer[32768];

	/**
	 * The maximum and current number of clients connected 
	 * at the same time.
	 */
	guint clients_max, clients_cnt;
};

/**
 * Removes a client from the httpd_output.clients linked list.
 */
void
httpd_output_remove_client(struct httpd_output *httpd,
			   struct httpd_client *client);

/**
 * Sends the encoder header to the client.  This is called right after
 * the response headers have been sent.
 */
void
httpd_output_send_header(struct httpd_output *httpd,
			 struct httpd_client *client);

#endif