/usr/share/gtk-doc/html/gupnp/glossary.html is in libgupnp-doc 0.20.12-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 | <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>GUPnP Reference Manual: Glossary</title>
<meta name="generator" content="DocBook XSL Stylesheets V1.78.1">
<link rel="home" href="index.html" title="GUPnP Reference Manual">
<link rel="up" href="index.html" title="GUPnP Reference Manual">
<link rel="prev" href="schemas-service.html" title="Service Description">
<link rel="next" href="annotation-glossary.html" title="Annotation Glossary">
<meta name="generator" content="GTK-Doc V1.20 (XML mode)">
<link rel="stylesheet" href="style.css" type="text/css">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="10"><tr valign="middle">
<td width="100%" align="left" class="shortcuts"></td>
<td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td>
<td><img src="up-insensitive.png" width="16" height="16" border="0"></td>
<td><a accesskey="p" href="schemas-service.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td>
<td><a accesskey="n" href="annotation-glossary.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td>
</tr></table>
<div class="glossary">
<div class="titlepage"><div><div><h1 class="title">
<a name="glossary"></a>Glossary</h1></div></div></div>
<dl>
<dt>
<a name="action"></a><span class="glossterm">Action</span>
</dt>
<dd class="glossdef">
<p>
An <em class="firstterm">Action</em> is a method call on a
<em class="glossterm">Service</em>, which encapsulated a single piece of
functionality. Actions can have multiple input and output arguments, and
can return error codes. UPnP allows one of the output arguments to be
marked as the <em class="firstterm">return value</em>, but GUPnP doesn't treat
return values specially.
</p>
<p>
Every action argument has a related <em class="glossterm">State Variable</em>,
which determines the type of the argument. Note that even if the argument
wouldn't need a state variable it is still required, due to historical
reasons.
</p>
</dd>
<dt>
<a name="controlpoint"></a><span class="glossterm">Control Point</span>
</dt>
<dd class="glossdef"><p>
A <em class="firstterm">Control Point</em> is an entity on the network which
communicates with other <em class="glossterm">Devices</em> and
<em class="glossterm">Services</em>. In the client/server model the control
point is a client and the <em class="glossterm">Service</em> is a server,
although it is common for devices to also be a control point because
whilst a single control point/service connection is client/server, the
UPnP network as whole is peer-to-peer.
</p></dd>
<dt>
<a name="device"></a><span class="glossterm">Device</span>
</dt>
<dd class="glossdef">
<p>
A <em class="firstterm">Device</em> is an entity on the network which
communicates using the UPnP standards. This can be a dedicated physical
device such as a router or printer, or a PC which is running software
implementing the UPnP standards.
</p>
<p>
A Device can contain sub-devices, for example a combination
printer/scanner could appear as a general device with a printer
sub-device and a scanner sub-device.
</p>
<p>
Every device has zero or more <em class="glossterm">Services</em>. UPnP defines many standard
device types, which specify services which are required to be implemented.
Alternatively, a non-standard device type could be used. Examples of
standard device types are <code class="literal">MediaRenderer</code> or
<code class="literal">InternetGatewayDevice</code>.
</p>
<p>See Also <a class="glossseealso" href="glossary.html#service">Service</a>.</p>
</dd>
<dt><span class="glossterm">DIDL-Lite</span></dt>
<dd><p>See <a class="glosssee" href="glossary.html#didllite">Digital Item Declaration Language - Lite</a>.</p></dd>
<dt>
<a name="didllite"></a><span class="glossterm">Digital Item Declaration Language - Lite</span>
</dt>
<dd class="glossdef"><p>
An XML schema used to represent digital content metadata. Defined by
the UPnP Forum.
</p></dd>
<dt><span class="glossterm">SCPD</span></dt>
<dd><p>See <a class="glosssee" href="glossary.html#scpd">Service Control Protocol Document</a>.</p></dd>
<dt>
<a name="service"></a><span class="glossterm">Service</span>
</dt>
<dd class="glossdef">
<p>
A <em class="firstterm">Service</em> is a collection of related methods
(called <em class="glossterm">Actions</em>) and public variables (called
<em class="glossterm">State Variables</em>) which together form a logical
interface.
</p>
<p>
UPnP defines standard services that define actions and variables which
must be present and their semantics. Examples of these are
<code class="literal">AVTransport</code> and <code class="literal">WANIPConnection</code>.
</p>
<p>See Also <a class="glossseealso" href="glossary.html#action">Action</a>, <a class="glossseealso" href="glossary.html#device">Device</a>, <a class="glossseealso" href="glossary.html#state-variable">State Variable</a>.</p>
</dd>
<dt>
<a name="scpd"></a><span class="glossterm">Service Control Protocol Document</span>
</dt>
<dd class="glossdef">
<p>
An XML document which defines the set of <em class="glossterm">Actions</em>
and <em class="glossterm">State Variables</em> that a
<em class="glossterm">Service</em> implements.
</p>
<p>See Also <a class="glossseealso" href="glossary.html#service">Service</a>, <a class="glossseealso" href="glossary.html#action">Action</a>, <a class="glossseealso" href="glossary.html#state-variable">State Variable</a>.</p>
</dd>
<dt>
<a name="ssdp"></a><span class="glossterm">Simple Service Discovery Protocol</span>
</dt>
<dd class="glossdef">
<p>
UPnP device discovery protocol. Specifies how <em class="glossterm">Devices</em>
advertise their <em class="glossterm">Services</em> in the network and also how
<em class="glossterm">Control Points</em> search for
services and devices respond.
</p>
<p>See Also <a class="glossseealso" href="glossary.html#device">Device</a>, <a class="glossseealso" href="glossary.html#controlpoint">Control Point</a>, <a class="glossseealso" href="glossary.html#service">Service</a>.</p>
</dd>
<dt><span class="glossterm">SSDP</span></dt>
<dd><p>See <a class="glosssee" href="glossary.html#ssdp">Simple Service Discovery Protocol</a>.</p></dd>
<dt>
<a name="state-variable"></a><span class="glossterm">State Variable</span>
</dt>
<dd class="glossdef"><p>
A <em class="firstterm">State Variable</em> is a public variable exposing some
aspect of the service's state. State variables are typed and optionally
are <em class="firstterm">evented</em>, which means that any changes will be
notified. Control points are said to <em class="firstterm">subscribe</em> to
a state variable to receive change notifications.
</p></dd>
<dt><span class="glossterm">UDN</span></dt>
<dd><p>See <a class="glosssee" href="glossary.html#udn">Unique Device Name</a>.</p></dd>
<dt>
<a name="udn"></a><span class="glossterm">Unique Device Name</span>
</dt>
<dd class="glossdef">
<p>
A a unique identifier which is <span class="emphasis"><em>unique</em></span> for every
device but <span class="emphasis"><em>never changes</em></span> for each particular
device.
</p>
<p>
A common practise is to generate a unique UDN on first boot from a
random seed, or use some unique and persistent property such as the
device's MAC address to create the UDN.
</p>
<p>See Also <a class="glossseealso" href="glossary.html#device">Device</a>.</p>
</dd>
</dl>
</div>
<div class="footer">
<hr>
Generated by GTK-Doc V1.20</div>
</body>
</html>
|