src/output/httpd_internal.h

   1 /*
   2  * Copyright (C) 2003-2010 The Music Player Daemon Project
   3  * http://www.musicpd.org
   4  *
   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 2 of the License, or
   8  * (at your option) any later version.
   9  *
  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.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18  */
  19
  20 /** \file
  21  *
  22  * Internal declarations for the "httpd" audio output plugin.
  23  */
  24
  25 #ifndef MPD_OUTPUT_HTTPD_INTERNAL_H
  26 #define MPD_OUTPUT_HTTPD_INTERNAL_H
  27
  28 #include "timer.h"
  29
  30 #include <glib.h>
  31
  32 #ifdef WIN32
  33 #include <winsock2.h>
  34 #include <ws2tcpip.h>
  35 #else
  36 #include <sys/socket.h>
  37 #endif
  38 #include <stdbool.h>
  39
  40 struct httpd_client;
  41
  42 struct httpd_output {
  43         /**
  44          * True if the audio output is open and accepts client
  45          * connections.
  46          */
  47         bool open;
  48
  49         /**
  50          * The configured encoder plugin.
  51          */
  52         struct encoder *encoder;
  53
  54         /**
  55          * The MIME type produced by the #encoder.
  56          */
  57         const char *content_type;
  58
  59         /**
  60          * The configured address of the listener socket.
  61          */
  62         struct sockaddr_storage address;
  63
  64         /**
  65          * The size of #address.
  66          */
  67         socklen_t address_size;
  68
  69         /**
  70          * This mutex protects the listener socket and the client
  71          * list.
  72          */
  73         GMutex *mutex;
  74
  75         /**
  76          * A #Timer object to synchronize this output with the
  77          * wallclock.
  78          */
  79         Timer *timer;
  80
  81         /**
  82          * The listener socket.
  83          */
  84         int fd;
  85
  86         /**
  87          * A GLib main loop source id for the listener socket.
  88          */
  89         guint source_id;
  90
  91         /**
  92          * The header page, which is sent to every client on connect.
  93          */
  94         struct page *header;
  95
  96         /**
  97          * The metadata, which is sent to every client.
  98          */
  99         struct page *metadata;
 100
 101         /**
 102          * A linked list containing all clients which are currently
 103          * connected.
 104          */
 105         GList *clients;
 106
 107         /**
 108          * A temporary buffer for the httpd_output_read_page()
 109          * function.
 110          */
 111         char buffer[32768];
 112
 113         /**
 114          * The maximum and current number of clients connected
 115          * at the same time.
 116          */
 117         guint clients_max, clients_cnt;
 118 };
 119
 120 /**
 121  * Removes a client from the httpd_output.clients linked list.
 122  */
 123 void
 124 httpd_output_remove_client(struct httpd_output *httpd,
 125                            struct httpd_client *client);
 126
 127 /**
 128  * Sends the encoder header to the client.  This is called right after
 129  * the response headers have been sent.
 130  */
 131 void
 132 httpd_output_send_header(struct httpd_output *httpd,
 133                          struct httpd_client *client);
 134
 135 #endif