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-rw-r--r--ns/ext/dynmanifest/dynmanifest.h144
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diff --git a/ns/ext/dynmanifest/dynmanifest.h b/ns/ext/dynmanifest/dynmanifest.h
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-/*
- Dynamic manifest specification for LV2
- Copyright 2008-2011 Stefano D'Angelo <zanga.mail@gmail.com>
-
- 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.
-*/
-
-/**
- @file dynmanifest.h
- C header for the LV2 Dynamic Manifest extension
- <http://lv2plug.in/ns/ext/dynmanifest>.
- Revision: 1.1
-*/
-
-#ifndef LV2_DYN_MANIFEST_H_INCLUDED
-#define LV2_DYN_MANIFEST_H_INCLUDED
-
-#include <stdio.h>
-
-#include "lv2/lv2plug.in/ns/lv2core/lv2.h"
-
-#define LV2_DYN_MANIFEST_URI "http://lv2plug.in/ns/ext/dynmanifest"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- Dynamic manifest generator handle.
-
- This handle indicates a particular status of a dynamic manifest generator.
- The host MUST NOT attempt to interpret it and, unlikely LV2_Handle, it is
- NOT even valid to compare this to NULL. The dynamic manifest generator MAY
- use it to reference internal data.
-*/
-typedef void * LV2_Dyn_Manifest_Handle;
-
-/**
- Generate the dynamic manifest.
-
- @param handle Pointer to an uninitialized dynamic manifest generator handle.
-
- @param features NULL terminated array of LV2_Feature structs which represent
- the features the host supports. The dynamic manifest generator may refuse to
- (re)generate the dynamic manifest if required features are not found here
- (however hosts SHOULD NOT use this as a discovery mechanism, instead of
- reading the static manifest file). This array must always exist; if a host
- has no features, it MUST pass a single element array containing NULL.
-
- @return 0 on success, otherwise a non-zero error code. The host SHOULD
- evaluate the result of the operation by examining the returned value and
- MUST NOT try to interpret the value of handle.
-*/
-int lv2_dyn_manifest_open(LV2_Dyn_Manifest_Handle * handle,
- const LV2_Feature *const * features);
-
-/**
- Fetch a "list" of subject URIs described in the dynamic manifest.
-
- The dynamic manifest generator has to fill the resource only with the needed
- triples to make the host aware of the "objects" it wants to expose. For
- example, if the plugin library exposes a regular LV2 plugin, it should
- output only a triple like the following:
-
- <http://www.example.com/plugin/uri> a lv2:Plugin .
-
- The objects that are elegible for exposure are those that would need to be
- represented by a subject node in a static manifest.
-
- @param handle Dynamic manifest generator handle.
-
- @param fp FILE * identifying the resource the host has to set up for the
- dynamic manifest generator. The host MUST pass a writable, empty resource to
- this function, and the dynamic manifest generator MUST ONLY perform write
- operations on it at the end of the stream (e.g., using only fprintf(),
- fwrite() and similar).
-
- @return 0 on success, otherwise a non-zero error code.
-*/
-int lv2_dyn_manifest_get_subjects(LV2_Dyn_Manifest_Handle handle,
- FILE * fp);
-
-/**
- Function that fetches data related to a specific URI.
-
- The dynamic manifest generator has to fill the resource with data related to
- object represented by the given URI. For example, if the library exposes a
- regular LV2 plugin whose URI, as retrieved by the host using
- lv2_dyn_manifest_get_subjects() is http://www.example.com/plugin/uri, it
- should output something like:
-
- <pre>
- <http://www.example.com/plugin/uri>
- a lv2:Plugin ;
- doap:name "My Plugin" ;
- lv2:binary <mylib.so> ;
- etc:etc "..." .
- </pre>
-
- @param handle Dynamic manifest generator handle.
-
- @param fp FILE * identifying the resource the host has to set up for the
- dynamic manifest generator. The host MUST pass a writable resource to this
- function, and the dynamic manifest generator MUST ONLY perform write
- operations on it at the current position of the stream (e.g. using only
- fprintf(), fwrite() and similar).
-
- @param uri URI to get data about (in the "plain" form, i.e., absolute URI
- without Turtle prefixes).
-
- @return 0 on success, otherwise a non-zero error code.
-*/
-int lv2_dyn_manifest_get_data(LV2_Dyn_Manifest_Handle handle,
- FILE * fp,
- const char * uri);
-
-/**
- Function that ends the operations on the dynamic manifest generator.
-
- This function SHOULD be used by the dynamic manifest generator to perform
- cleanup operations, etc.
-
- Once this function is called, referring to handle will cause undefined
- behavior.
-
- @param handle Dynamic manifest generator handle.
-*/
-void lv2_dyn_manifest_close(LV2_Dyn_Manifest_Handle handle);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* LV2_DYN_MANIFEST_H_INCLUDED */