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<?xml version='1.0'?>
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
"file:///usr/share/xml/docbook/schema/dtd/4.2/docbookx.dtd">
<!--
Copyright Intel 2012
This manual page is licensed under the Creative Commons Attribution-ShareAlike 3.0 United States License (CC BY-SA 3.0
US). To view a copy of this license, visit http://creativecommons.org.license/by-sa/3.0/us.
-->
<refentry
id="waffle_attrib_list"
xmlns:xi="http://www.w3.org/2001/XInclude">
<!-- See http://www.docbook.org/tdg/en/html/refentry.html. -->
<refmeta>
<refentrytitle>waffle_attrib_list</refentrytitle>
<manvolnum>3</manvolnum>
</refmeta>
<refnamediv>
<refname>waffle_attrib_list</refname>
<refname>waffle_attrib_list_length</refname>
<refname>waffle_attrib_list_get</refname>
<refname>waffle_attrib_list_get_with_default</refname>
<refname>waffle_attrib_list_update</refname>
<refpurpose>Utilities for attribute lists</refpurpose>
</refnamediv>
<refentryinfo>
<title>Waffle Manual</title>
<productname>waffle</productname>
<xi:include href="common/author-chad.versace.xml"/>
<xi:include href="common/copyright.xml"/>
<xi:include href="common/legalnotice.xml"/>
</refentryinfo>
<refsynopsisdiv>
<funcsynopsis language="C">
<funcsynopsisinfo>#include <waffle.h></funcsynopsisinfo>
<funcprototype>
<funcdef>DEPRECATED bool <function>waffle_attrib_list_length</function></funcdef>
<paramdef>const int32_t <parameter>attrib_list</parameter>[]</paramdef>
</funcprototype>
<funcprototype>
<funcdef>DEPRECATED bool <function>waffle_attrib_list_get</function></funcdef>
<paramdef>const int32_t <parameter>attrib_list</parameter>[]</paramdef>
<paramdef>int32_t <parameter>key</parameter></paramdef>
<paramdef>int32_t *<parameter>value</parameter></paramdef>
</funcprototype>
<funcprototype>
<funcdef>DEPRECATED bool <function>waffle_attrib_list_get_with_default</function></funcdef>
<paramdef>const int32_t <parameter>attrib_list</parameter>[]</paramdef>
<paramdef>int32_t <parameter>key</parameter></paramdef>
<paramdef>int32_t *<parameter>value</parameter></paramdef>
<paramdef>int32_t <parameter>default_value</parameter></paramdef>
</funcprototype>
<funcprototype>
<funcdef>DEPRECATED bool <function>waffle_attrib_list_update</function></funcdef>
<paramdef>int32_t <parameter>attrib_list</parameter>[]</paramdef>
<paramdef>int32_t <parameter>key</parameter></paramdef>
<paramdef>int32_t *<parameter>value</parameter></paramdef>
</funcprototype>
</funcsynopsis>
<refsect2>
<title>Deprecation</title>
<para>All functions above are deprecated in Waffle 1.6 and later.</para>
</refsect2>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para>
An attribute list is a zero-terminated list of <type>int32_t</type> key/value pairs or a null pointer. A null
pointer is interpreted as an empty list, whose only member is the terminal zero. For concrete examples of
attribute lists, see the "Examples" section in
<citerefentry><refentrytitle><function>waffle_config</function></refentrytitle><manvolnum>3</manvolnum></citerefentry>.
</para>
<para>
All attribute list functions can be called before waffle has been successfully initialized with
<citerefentry><refentrytitle><function>waffle_init</function></refentrytitle><manvolnum>3</manvolnum></citerefentry>.
</para>
<variablelist>
<varlistentry>
<term><function>waffle_attrib_list_length()</function></term>
<listitem>
<para>
Return the number of key/value pairs in the list.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><function>waffle_attrib_list_get()</function></term>
<listitem>
<para>
Get the <parameter>value</parameter> associated with <parameter>key</parameter>. If the list does not
contain the <parameter>key</parameter>, then <parameter>value</parameter> is not dereferenced.
Return true if and only if the list contains the <parameter>key</parameter>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><function>waffle_attrib_list_get_with_default()</function></term>
<listitem>
<para>
Equivalent to <function>waffle_attrib_list_get()</function> except that if the list does not contain the
<parameter>key</parameter> then <parameter>value</parameter> is set to a <parameter>default_value</parameter>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><function>waffle_attrib_list_update()</function></term>
<listitem>
<para>
Update the <parameter>value</parameter> associated with <parameter>key</parameter>.
If the list does not contain the <parameter>key</parameter> then the list is not modified.
Return true if and only if the list contains the <parameter>key</parameter>.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>Errors</title>
<para>
All attribute list functions set the error code to <constant>WAFFLE_NO_ERROR</constant> and can be called before
waffle has been successfully initialized with
<citerefentry><refentrytitle><function>waffle_init</function></refentrytitle><manvolnum>3</manvolnum></citerefentry>.
</para>
<xi:include href="common/error-codes.xml"/>
</refsect1>
<xi:include href="common/issues.xml"/>
<refsect1>
<title>See Also</title>
<para>
<citerefentry><refentrytitle>waffle</refentrytitle><manvolnum>7</manvolnum></citerefentry>
</para>
</refsect1>
</refentry>
<!--
vim:tw=120 et ts=2 sw=2:
-->
|
