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audacity/lib-src/redland/librdf/rdf_stream_internal.h
2010-01-24 09:19:39 +00:00

68 lines
2.1 KiB
C

/* -*- Mode: c; c-basic-offset: 2 -*-
*
* rdf_stream_internal.h - Internal RDF Stream definitions
*
* Copyright (C) 2000-2008, David Beckett http://www.dajobe.org/
* Copyright (C) 2000-2005, University of Bristol, UK http://www.bristol.ac.uk/
*
* This package is Free Software and part of Redland http://librdf.org/
*
* It is licensed under the following three licenses as alternatives:
* 1. GNU Lesser General Public License (LGPL) V2.1 or any newer version
* 2. GNU General Public License (GPL) V2 or any newer version
* 3. Apache License, V2.0 or any newer version
*
* You may not use this file except in compliance with at least one of
* the above three licenses.
*
* See LICENSE.html or LICENSE.txt at the top of this package for the
* complete terms and further detail along with the license texts for
* the licenses in COPYING.LIB, COPYING and LICENSE-2.0.txt respectively.
*
*
*/
#ifndef LIBRDF_STREAM_INTERNAL_H
#define LIBRDF_STREAM_INTERNAL_H
#ifdef __cplusplus
extern "C" {
#endif
/* used in map_list below */
typedef struct {
void *context; /* context to pass on to map */
librdf_stream_map_handler fn;
librdf_stream_map_free_context_handler free_context;
} librdf_stream_map;
struct librdf_stream_s {
librdf_world *world;
void *context;
int is_finished; /* 1 when have no more statements */
int is_updated; /* 1 when we know there is a current item */
int is_updating; /* 1 when are in the middle of update process */
/* Used when mapping */
librdf_statement *current;
librdf_list *map_list; /* non-empty means there is a list of maps */
int (*is_end_method)(void*);
int (*next_method)(void*);
void* (*get_method)(void*, int); /* flags: type of get */
void (*finished_method)(void*);
};
/* FIXME - should all short lists be enums */
#define LIBRDF_STREAM_GET_METHOD_GET_OBJECT LIBRDF_ITERATOR_GET_METHOD_GET_OBJECT
#define LIBRDF_STREAM_GET_METHOD_GET_CONTEXT LIBRDF_ITERATOR_GET_METHOD_GET_CONTEXT
librdf_statement* librdf_stream_statement_find_map(librdf_stream *stream, void* context, librdf_statement* statement);
#ifdef __cplusplus
}
#endif
#endif