[OpenSPARC-T2-SAM] / sam-t2 / devtools / v8plus / html / python / lib / module-xdrlib.html

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<link rel="STYLESHEET" href="lib.css" type='text/css' />
<link rel="SHORTCUT ICON" href="../icons/pyfav.png" type="image/png" />
<link rel='start' href='../index.html' title='Python Documentation Index' />
<link rel="first" href="lib.html" title='Python Library Reference' />
<link rel='contents' href='contents.html' title="Contents" />
<link rel='index' href='genindex.html' title='Index' />
<link rel='last' href='about.html' title='About this document...' />
<link rel='help' href='about.html' title='About this document...' />
<link rel="next" href="module-netrc.html" />
<link rel="prev" href="module-uu.html" />
<link rel="parent" href="netdata.html" />
<link rel="next" href="xdr-packer-objects.html" />
<meta name='aesop' content='information' />
<title>12.17 xdrlib -- Encode and decode XDR data</title>
</head>
<body>
<DIV CLASS="navigation">
<div id='top-navigation-panel' xml:id='top-navigation-panel'>
<table align="center" width="100%" cellpadding="0" cellspacing="2">
<tr>
<td class='online-navigation'><a rel="prev" title="12.16 uu  "
  href="module-uu.html"><img src='../icons/previous.png'
  border='0' height='32'  alt='Previous Page' width='32' /></A></td>
<td class='online-navigation'><a rel="parent" title="12. Internet Data Handling"
  href="netdata.html"><img src='../icons/up.png'
  border='0' height='32'  alt='Up One Level' width='32' /></A></td>
<td class='online-navigation'><a rel="next" title="12.17.1 Packer Objects"
  href="xdr-packer-objects.html"><img src='../icons/next.png'
  border='0' height='32'  alt='Next Page' width='32' /></A></td>
<td align="center" width="100%">Python Library Reference</td>
<td class='online-navigation'><a rel="contents" title="Table of Contents"
  href="contents.html"><img src='../icons/contents.png'
  border='0' height='32'  alt='Contents' width='32' /></A></td>
<td class='online-navigation'><a href="modindex.html" title="Module Index"><img src='../icons/modules.png'
  border='0' height='32'  alt='Module Index' width='32' /></a></td>
<td class='online-navigation'><a rel="index" title="Index"
  href="genindex.html"><img src='../icons/index.png'
  border='0' height='32'  alt='Index' width='32' /></A></td>
</tr></table>
<div class='online-navigation'>
<b class="navlabel">Previous:</b>
<a class="sectref" rel="prev" href="module-uu.html">12.16 uu  </A>
<b class="navlabel">Up:</b>
<a class="sectref" rel="parent" href="netdata.html">12. Internet Data Handling</A>
<b class="navlabel">Next:</b>
<a class="sectref" rel="next" href="xdr-packer-objects.html">12.17.1 Packer Objects</A>
</div>
<hr /></div>
</DIV>
<!--End of Navigation Panel-->

<H1><A NAME="SECTION00141700000000000000000">
12.17 <tt class="module">xdrlib</tt> --
         Encode and decode XDR data</A>
</H1>

<P>
<A NAME="module-xdrlib"></A>

<P>
<a id='l2h-4164' xml:id='l2h-4164'></a>

<P>
The <tt class="module">xdrlib</tt> module supports the External Data Representation
Standard as described in <a class="rfc" id='rfcref-91292' xml:id='rfcref-91292'
href="http://www.faqs.org/rfcs/rfc1014.html">RFC 1014</a>, written by Sun Microsystems,
Inc. June 1987.  It supports most of the data types described in the
RFC.

<P>
The <tt class="module">xdrlib</tt> module defines two classes, one for packing
variables into XDR representation, and another for unpacking from XDR
representation.  There are also two exception classes.

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><span class="typelabel">class</span>&nbsp;<tt id='l2h-4162' xml:id='l2h-4162' class="class">Packer</tt></b>(</nobr></td>
  <td><var></var>)</td></tr></table></dt>
<dd>
<tt class="class">Packer</tt> is the class for packing data into XDR representation.
The <tt class="class">Packer</tt> class is instantiated with no arguments.
</dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><span class="typelabel">class</span>&nbsp;<tt id='l2h-4163' xml:id='l2h-4163' class="class">Unpacker</tt></b>(</nobr></td>
  <td><var>data</var>)</td></tr></table></dt>
<dd>
<code>Unpacker</code> is the complementary class which unpacks XDR data
values from a string buffer.  The input buffer is given as
<var>data</var>.
</dl>

<P>
<div class="seealso">
  <p class="heading">See Also:</p>

  <dl compact="compact" class="seerfc">
    <dt><a href="http://www.faqs.org/rfcs/rfc1014.html"
        title="XDR: External Data Representation Standard"
        >RFC 1014, <em>XDR: External Data Representation Standard</em></a>
    <dd>This RFC
                defined the encoding of data which was XDR at the time
                this module was originally written.  It has
                apparently been obsoleted by <a class="rfc" id='rfcref-91288' xml:id='rfcref-91288'
href="http://www.faqs.org/rfcs/rfc1832.html">RFC 1832</a>.
  </dl>

<P>
<dl compact="compact" class="seerfc">
    <dt><a href="http://www.faqs.org/rfcs/rfc1832.html"
        title="XDR: External Data Representation Standard"
        >RFC 1832, <em>XDR: External Data Representation Standard</em></a>
    <dd>Newer RFC
                that provides a revised definition of XDR.
  </dl>
</div>

<P>

<p><br /></p><hr class='online-navigation' />
<div class='online-navigation'>
<!--Table of Child-Links-->
<A NAME="CHILD_LINKS"><STRONG>Subsections</STRONG></a>

<UL CLASS="ChildLinks">
<LI><A href="xdr-packer-objects.html">12.17.1 Packer Objects</a>
<LI><A href="xdr-unpacker-objects.html">12.17.2 Unpacker Objects</a>
<LI><A href="xdr-exceptions.html">12.17.3 Exceptions</a>
</ul>
<!--End of Table of Child-Links-->
</div>

<DIV CLASS="navigation">
<div class='online-navigation'>
<p></p><hr />
<table align="center" width="100%" cellpadding="0" cellspacing="2">
<tr>
<td class='online-navigation'><a rel="prev" title="12.16 uu  "
  href="module-uu.html"><img src='../icons/previous.png'
  border='0' height='32'  alt='Previous Page' width='32' /></A></td>
<td class='online-navigation'><a rel="parent" title="12. Internet Data Handling"
  href="netdata.html"><img src='../icons/up.png'
  border='0' height='32'  alt='Up One Level' width='32' /></A></td>
<td class='online-navigation'><a rel="next" title="12.17.1 Packer Objects"
  href="xdr-packer-objects.html"><img src='../icons/next.png'
  border='0' height='32'  alt='Next Page' width='32' /></A></td>
<td align="center" width="100%">Python Library Reference</td>
<td class='online-navigation'><a rel="contents" title="Table of Contents"
  href="contents.html"><img src='../icons/contents.png'
  border='0' height='32'  alt='Contents' width='32' /></A></td>
<td class='online-navigation'><a href="modindex.html" title="Module Index"><img src='../icons/modules.png'
  border='0' height='32'  alt='Module Index' width='32' /></a></td>
<td class='online-navigation'><a rel="index" title="Index"
  href="genindex.html"><img src='../icons/index.png'
  border='0' height='32'  alt='Index' width='32' /></A></td>
</tr></table>
<div class='online-navigation'>
<b class="navlabel">Previous:</b>
<a class="sectref" rel="prev" href="module-uu.html">12.16 uu  </A>
<b class="navlabel">Up:</b>
<a class="sectref" rel="parent" href="netdata.html">12. Internet Data Handling</A>
<b class="navlabel">Next:</b>
<a class="sectref" rel="next" href="xdr-packer-objects.html">12.17.1 Packer Objects</A>
</div>
</div>
<hr />
<span class="release-info">Release 2.4.2, documentation updated on 28 September 2005.</span>
</DIV>
<!--End of Navigation Panel-->
<ADDRESS>
See <i><a href="about.html">About this document...</a></i> for information on suggesting changes.
</ADDRESS>
</BODY>
</HTML>
Commit	Line	Data
920dae64 AT	1	<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
	2	<html>
	3	<head>
	4	<link rel="STYLESHEET" href="lib.css" type='text/css' />
	5	<link rel="SHORTCUT ICON" href="../icons/pyfav.png" type="image/png" />
	6	<link rel='start' href='../index.html' title='Python Documentation Index' />
	7	<link rel="first" href="lib.html" title='Python Library Reference' />
	8	<link rel='contents' href='contents.html' title="Contents" />
	9	<link rel='index' href='genindex.html' title='Index' />
	10	<link rel='last' href='about.html' title='About this document...' />
	11	<link rel='help' href='about.html' title='About this document...' />
	12	<link rel="next" href="module-netrc.html" />
	13	<link rel="prev" href="module-uu.html" />
	14	<link rel="parent" href="netdata.html" />
	15	<link rel="next" href="xdr-packer-objects.html" />
	16	<meta name='aesop' content='information' />
	17	<title>12.17 xdrlib -- Encode and decode XDR data</title>
	18	</head>
	19	<body>
	20	<DIV CLASS="navigation">
	21	<div id='top-navigation-panel' xml:id='top-navigation-panel'>
	22	<table align="center" width="100%" cellpadding="0" cellspacing="2">
	23	<tr>
	24	<td class='online-navigation'><a rel="prev" title="12.16 uu "
	25	href="module-uu.html"><img src='../icons/previous.png'
	26	border='0' height='32' alt='Previous Page' width='32' /></A></td>
	27	<td class='online-navigation'><a rel="parent" title="12. Internet Data Handling"
	28	href="netdata.html"><img src='../icons/up.png'
	29	border='0' height='32' alt='Up One Level' width='32' /></A></td>
	30	<td class='online-navigation'><a rel="next" title="12.17.1 Packer Objects"
	31	href="xdr-packer-objects.html"><img src='../icons/next.png'
	32	border='0' height='32' alt='Next Page' width='32' /></A></td>
	33	<td align="center" width="100%">Python Library Reference</td>
	34	<td class='online-navigation'><a rel="contents" title="Table of Contents"
	35	href="contents.html"><img src='../icons/contents.png'
	36	border='0' height='32' alt='Contents' width='32' /></A></td>
	37	<td class='online-navigation'><a href="modindex.html" title="Module Index"><img src='../icons/modules.png'
	38	border='0' height='32' alt='Module Index' width='32' /></a></td>
	39	<td class='online-navigation'><a rel="index" title="Index"
	40	href="genindex.html"><img src='../icons/index.png'
	41	border='0' height='32' alt='Index' width='32' /></A></td>
	42	</tr></table>
	43	<div class='online-navigation'>
	44	<b class="navlabel">Previous:</b>
	45	<a class="sectref" rel="prev" href="module-uu.html">12.16 uu </A>
	46	<b class="navlabel">Up:</b>
	47	<a class="sectref" rel="parent" href="netdata.html">12. Internet Data Handling</A>
	48	<b class="navlabel">Next:</b>
	49	<a class="sectref" rel="next" href="xdr-packer-objects.html">12.17.1 Packer Objects</A>
	50	</div>
	51	<hr /></div>
	52	</DIV>
	53	<!--End of Navigation Panel-->
	54
	55	<H1><A NAME="SECTION00141700000000000000000">
	56	12.17 <tt class="module">xdrlib</tt> --
	57	Encode and decode XDR data</A>
	58	</H1>
	59
	60	<P>
	61	<A NAME="module-xdrlib"></A>
	62
	63	<P>
	64	<a id='l2h-4164' xml:id='l2h-4164'></a>
65
66	<P>
67	The <tt class="module">xdrlib</tt> module supports the External Data Representation
68	Standard as described in <a class="rfc" id='rfcref-91292' xml:id='rfcref-91292'
69	href="http://www.faqs.org/rfcs/rfc1014.html">RFC 1014</a>, written by Sun Microsystems,
70	Inc. June 1987. It supports most of the data types described in the
71	RFC.
72
73	<P>
74	The <tt class="module">xdrlib</tt> module defines two classes, one for packing
75	variables into XDR representation, and another for unpacking from XDR
76	representation. There are also two exception classes.
77
78	<P>
79	<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
80	<td><nobr><b><span class="typelabel">class</span> <tt id='l2h-4162' xml:id='l2h-4162' class="class">Packer</tt></b>(</nobr></td>
81	<td><var></var>)</td></tr></table></dt>
82	<dd>
83	<tt class="class">Packer</tt> is the class for packing data into XDR representation.
84	The <tt class="class">Packer</tt> class is instantiated with no arguments.
85	</dl>
86
87	<P>
88	<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
89	<td><nobr><b><span class="typelabel">class</span> <tt id='l2h-4163' xml:id='l2h-4163' class="class">Unpacker</tt></b>(</nobr></td>
90	<td><var>data</var>)</td></tr></table></dt>
91	<dd>
92	<code>Unpacker</code> is the complementary class which unpacks XDR data
93	values from a string buffer. The input buffer is given as
94	<var>data</var>.
95	</dl>
96
97	<P>
98	<div class="seealso">
99	<p class="heading">See Also:</p>
100
101	<dl compact="compact" class="seerfc">
102	<dt><a href="http://www.faqs.org/rfcs/rfc1014.html"
103	title="XDR: External Data Representation Standard"
104	>RFC 1014, <em>XDR: External Data Representation Standard</em></a>
105	<dd>This RFC
106	defined the encoding of data which was XDR at the time
107	this module was originally written. It has
108	apparently been obsoleted by <a class="rfc" id='rfcref-91288' xml:id='rfcref-91288'
109	href="http://www.faqs.org/rfcs/rfc1832.html">RFC 1832</a>.
110	</dl>
111
112	<P>
113	<dl compact="compact" class="seerfc">
114	<dt><a href="http://www.faqs.org/rfcs/rfc1832.html"
115	title="XDR: External Data Representation Standard"
116	>RFC 1832, <em>XDR: External Data Representation Standard</em></a>
117	<dd>Newer RFC
118	that provides a revised definition of XDR.
119	</dl>
120	</div>
121
122	<P>
123
124	<p><br /></p><hr class='online-navigation' />
125	<div class='online-navigation'>
126	<!--Table of Child-Links-->
127	<A NAME="CHILD_LINKS"><STRONG>Subsections</STRONG></a>
128
129	<UL CLASS="ChildLinks">
130	<LI><A href="xdr-packer-objects.html">12.17.1 Packer Objects</a>
131	<LI><A href="xdr-unpacker-objects.html">12.17.2 Unpacker Objects</a>
132	<LI><A href="xdr-exceptions.html">12.17.3 Exceptions</a>
133	</ul>
134	<!--End of Table of Child-Links-->
135	</div>
136
137	<DIV CLASS="navigation">
138	<div class='online-navigation'>
139	<p></p><hr />
140	<table align="center" width="100%" cellpadding="0" cellspacing="2">
141	<tr>
142	<td class='online-navigation'><a rel="prev" title="12.16 uu "
143	href="module-uu.html"><img src='../icons/previous.png'
144	border='0' height='32' alt='Previous Page' width='32' /></A></td>
145	<td class='online-navigation'><a rel="parent" title="12. Internet Data Handling"
146	href="netdata.html"><img src='../icons/up.png'
147	border='0' height='32' alt='Up One Level' width='32' /></A></td>
148	<td class='online-navigation'><a rel="next" title="12.17.1 Packer Objects"
149	href="xdr-packer-objects.html"><img src='../icons/next.png'
150	border='0' height='32' alt='Next Page' width='32' /></A></td>
151	<td align="center" width="100%">Python Library Reference</td>
152	<td class='online-navigation'><a rel="contents" title="Table of Contents"
153	href="contents.html"><img src='../icons/contents.png'
154	border='0' height='32' alt='Contents' width='32' /></A></td>
155	<td class='online-navigation'><a href="modindex.html" title="Module Index"><img src='../icons/modules.png'
156	border='0' height='32' alt='Module Index' width='32' /></a></td>
157	<td class='online-navigation'><a rel="index" title="Index"
158	href="genindex.html"><img src='../icons/index.png'
159	border='0' height='32' alt='Index' width='32' /></A></td>
160	</tr></table>
161	<div class='online-navigation'>
162	<b class="navlabel">Previous:</b>
163	<a class="sectref" rel="prev" href="module-uu.html">12.16 uu </A>
164	<b class="navlabel">Up:</b>
165	<a class="sectref" rel="parent" href="netdata.html">12. Internet Data Handling</A>
166	<b class="navlabel">Next:</b>
167	<a class="sectref" rel="next" href="xdr-packer-objects.html">12.17.1 Packer Objects</A>
168	</div>
169	</div>
170	<hr />
171	<span class="release-info">Release 2.4.2, documentation updated on 28 September 2005.</span>
172	</DIV>
173	<!--End of Navigation Panel-->
174	<ADDRESS>
175	See <i><a href="about.html">About this document...</a></i> for information on suggesting changes.
176	</ADDRESS>
177	</BODY>
178	</HTML>