diff options
Diffstat (limited to 'lv2/worker/worker.ttl')
| -rw-r--r-- | lv2/worker/worker.ttl | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/lv2/worker/worker.ttl b/lv2/worker/worker.ttl new file mode 100644 index 0000000..6b32742 --- /dev/null +++ b/lv2/worker/worker.ttl @@ -0,0 +1,53 @@ +@prefix lv2: <http://lv2plug.in/ns/lv2core#> . +@prefix owl: <http://www.w3.org/2002/07/owl#> . +@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> . +@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . +@prefix work: <http://lv2plug.in/ns/ext/worker#> . +@prefix xsd: <http://www.w3.org/2001/XMLSchema#> . + +<http://lv2plug.in/ns/ext/worker> + a owl:Ontology ; + rdfs:seeAlso <worker.h> , + <lv2-worker.doap.ttl> ; + lv2:documentation """ +<p>This extension allows plugins to schedule work that must be performed in +another thread. Plugins can use this interface to safely perform work that is +not real-time safe, and receive the result in the run context. The details of +threading are managed by the host, allowing plugins to be simple and portable +while using resources more efficiently.</p> + +<p>This interface is designed to gracefully support single-threaded synchronous +execution, which allows the same code to work with sample accuracy for offline +rendering. For example, a sampler plugin may schedule a sample to be loaded +from disk in another thread. During live execution, the host will call the +plugin's work method from another thread, and deliver the result to the audio +thread when it is finished. However, during offline export, the +<q>scheduled</q> load would be executed immediately in the same thread. This +enables reproducible offline rendering, where any changes affect the output +immediately regardless of how long the work takes to execute.</p> +""" . + +work:interface + a lv2:ExtensionData ; + lv2:documentation """ +<p>The work interface provided by a plugin, LV2_Worker_Interface.</p> +<pre class="turtle-code"> +@prefix work: <http://lv2plug.in/ns/ext/worker#> . + +<plugin> + a lv2:Plugin ; + lv2:extensionData work:interface . +</pre> +""" . + +work:schedule + a lv2:Feature ; + lv2:documentation """ +<p>The work scheduling feature provided by a host, LV2_Worker_Schedule.</p> + +<p>If the host passes this feature to LV2_Descriptor::instantiate, the plugin +MAY use it to schedule work in the audio thread, and MUST NOT call it in any +other context. Hosts MAY pass this feature to other functions as well, in +which case the plugin MAY use it to schedule work in the calling context. The +plugin MUST NOT assume any relationship between different schedule +features.</p> """ . |