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+++ b/Symbian3/PDK/Source/GUID-DEA883D0-7C53-407A-AC5D-0A3208E667C7.dita	Fri Jan 22 18:26:19 2010 +0000
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+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->
+<!-- This component and the accompanying materials are made available under the terms of the License 
+"Eclipse Public License v1.0" which accompanies this distribution, 
+and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->
+<!-- Initial Contributors:
+    Nokia Corporation - initial contribution.
+Contributors: 
+-->
+<!DOCTYPE concept
+  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<concept id="GUID-DEA883D0-7C53-407A-AC5D-0A3208E667C7" xml:lang="en"><title>EGL
+Reusable Sync Extension</title><shortdesc>This topic describes the EGL reusable sync extension, which introduces
+sync objects into EGL. Sync objects provide a synchronization mechanism and
+represent events, whose completion can be tested or waited on. </shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>
+<p>The following table provides a link to the specification.</p>
+<table id="GUID-3E2BB969-C9C3-473B-B448-5BEAA279619B">
+<tgroup cols="2"><colspec colname="col1" colwidth="0.20*"/><colspec colname="col2" colwidth="1.80*"/>
+<thead>
+<row>
+<entry valign="top">Version </entry>
+<entry valign="top">Specification</entry>
+</row>
+</thead>
+<tbody>
+<row>
+<entry>Version 20</entry>
+<entry><xref href="http://www.khronos.org/registry/egl/extensions/KHR/EGL_KHR_reusable_sync.txt" scope="external">http://www.khronos.org/registry/egl/extensions/KHR/EGL_KHR_reusable_sync.txt</xref></entry>
+</row>
+</tbody>
+</tgroup>
+</table>
+<p>The OpenWF-C Engine and Support components use EGL sync objects for synchronization.
+Therefore the EGL implementation must support the extension if OpenWF composition
+is in use. The EGL Reference Implementation component implements the extension. </p>
+<p>The following table lists the reusable sync extension APIs.
+Clients obtain an extension function by calling <codeph>eglGetProcAddress()</codeph> and
+pass in the function name.</p>
+<table id="GUID-CE850680-15FF-4861-8B03-5D56125282D7">
+<tgroup cols="2"><colspec colname="col1"/><colspec colname="col2"/>
+<thead>
+<row>
+<entry valign="top">Function</entry>
+<entry valign="top">Description</entry>
+</row>
+</thead>
+<tbody>
+<row>
+<entry><codeph>eglCreateSyncKHR()</codeph></entry>
+<entry>Creates a sync object which is associated with the initialized EGL
+display and whose status is unsignaled.</entry>
+</row>
+<row>
+<entry><codeph>eglDestroySyncKHR()</codeph></entry>
+<entry>Destroys an existing sync object.</entry>
+</row>
+<row>
+<entry><codeph>eglClientWaitSyncKHR()</codeph></entry>
+<entry>Blocks the calling thread until the sync object is signaled or after
+the specified timeout period.</entry>
+</row>
+<row>
+<entry><codeph>eglSignalSyncKHR()</codeph></entry>
+<entry>Signals or unsignals the sync object. </entry>
+</row>
+<row>
+<entry><codeph>eglGetSyncAttribKHR()</codeph></entry>
+<entry>Queries attributes of the sync object.</entry>
+</row>
+</tbody>
+</tgroup>
+</table>
+<codeblock xml:space="preserve"/>
+</conbody><related-links>
+<link href="GUID-A5914CFF-6F86-53E8-9928-36D3379835B1.dita"><linktext>EGL Interface
+Overview</linktext></link>
+<link href="GUID-894AB487-C127-532D-852B-37CB0DEA1440.dita"><linktext>Symbian-Specific
+Behavior</linktext></link>
+<link href="GUID-46813F51-370B-5853-917C-6916925A347D.dita"><linktext>EGL Tutorial</linktext>
+</link>
+<link href="GUID-DC8BFEF5-DA50-52DA-8CE2-5729A4A005F6.dita"><linktext>EGL Collection
+Overview</linktext></link>
+<link href="GUID-83510B5B-9725-5272-BF51-23A089178DAC.dita">
+<linktext>OpenWF Support Component Overview</linktext></link>
+</related-links></concept>
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