68 lines
2.1 KiB
Turtle
68 lines
2.1 KiB
Turtle
@prefix log: <http://lv2plug.in/ns/ext/log#> .
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@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
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@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
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@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
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@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
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<http://lv2plug.in/ns/ext/log>
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a lv2:Specification ;
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rdfs:seeAlso <log.h> ,
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<lv2-log.doap.ttl> ;
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lv2:documentation """
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<p>This extension defines a feature, log:log, which allows plugins to print log
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messages with an API much like the standard C printf functions. This allows,
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for example, plugin logs to be nicely presented to the user in a graphical user
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interface.</p>
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<p>Different log levels (e.g. <q>error</q> or <q>information</q>) are defined
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by URI and passed as an LV2_URID. This document defines the typical levels
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which should be sufficient, but implementations may define and use additional
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levels to suit their needs.</p>
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""" .
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log:Entry
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a rdfs:Class ;
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rdfs:label "Log Entry" ;
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lv2:documentation """
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<p>A log entry. Subclasses of this class can be passed to LV2_Log_Log methods
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to describe the nature of the log message.</p>""" .
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log:Error
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a rdfs:Class ;
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rdfs:label "Error" ;
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rdfs:subClassOf log:Entry ;
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rdfs:comment "An error message." .
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log:Note
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a rdfs:Class ;
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rdfs:label "Note" ;
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rdfs:subClassOf log:Entry ;
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rdfs:comment "An informative message." .
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log:Warning
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a rdfs:Class ;
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rdfs:label "Warning" ;
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rdfs:subClassOf log:Entry ;
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rdfs:comment "A warning message." .
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log:Trace
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a rdfs:Class ;
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rdfs:label "Trace" ;
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rdfs:subClassOf log:Entry ;
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lv2:documentation """
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<p>A debugging trace. These entries should not be displayed during normal
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operation, but the host may implement an option to display them for debugging
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purposes.</p>
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<p>This entry type is special in that it may be written to in a real-time
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thread. It is assumed that if debug tracing is enabled, real-time
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considerations are not a concern.</p>
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""" .
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log:log
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a lv2:Feature ;
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lv2:documentation """
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<p>A feature which plugins may use to log messages. To support this feature,
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the host must pass an LV2_Feature to LV2_Descriptor::instantiate() with URI
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LV2_LOG__log and data pointed to an instance of LV2_Log_Log.</p>
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""" .
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