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+# LV2 Worker Extension
+# Copyright 2012 David Robillard <d@drobilla.net>
+#
+# Permission to use, copy, modify, and/or distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+@prefix work: <http://lv2plug.in/ns/ext/worker#> .
+@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
+@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
+@prefix doap: <http://usefulinc.com/ns/doap#> .
+@prefix foaf: <http://xmlns.com/foaf/0.1/> .
+
+<http://lv2plug.in/ns/ext/worker>
+ a lv2:Specification ,
+ lv2:Feature ;
+ doap:name "LV2 Worker" ;
+ doap:shortdesc "Support for a non-realtime plugin worker method." ;
+ lv2:documentation """
+""" .
+
+work:Interface
+ a rdfs:Class ;
+ rdfs:subClassOf lv2:ExtensionData ;
+ lv2:documentation """
+<p>A structure (LV2_Worker_Interface) which contains the worker method to be
+called by the host. In order to support this extension, the plugin must return
+a valid LV2_Worker_Interface from LV2_Descriptor::extension_data() when it is
+called with URI LV2_WORKER__Interface.</p>
+
+<p>The plugin data file should describe this like so:</p>
+<pre class="turtle-code">
+@prefix work: &lt;http://lv2plug.in/ns/ext/worker#&gt; .
+
+&lt;plugin&gt;
+ a lv2:Plugin ;
+ lv2:extensionData work:Interface .
+</pre>
+""" .
+
+work:schedule
+ a lv2:Feature ;
+ lv2:documentation """
+<p>A feature which provides functions for use by the plugin to implement a
+worker method. To support this feature, the host must pass an LV2_Feature to
+LV2_Descriptor::instantiate() with URI LV2_WORKER__schedule and data pointed to
+an instance of LV2_Worker_Schedule.</p>
+""" .