66 lines
2.5 KiB
C
66 lines
2.5 KiB
C
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Copyright by The HDF Group. *
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* Copyright by the Board of Trustees of the University of Illinois. *
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* All rights reserved. *
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* *
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* This file is part of HDF. The full HDF copyright notice, including *
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* terms governing use, modification, and redistribution, is contained in *
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* the COPYING file, which can be found at the root of the source code *
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* distribution tree, or in https://support.hdfgroup.org/ftp/HDF/releases/. *
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* If you do not have access to either file, you may request a copy from *
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* help@hdfgroup.org. *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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/* $Id$ */
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/*------------------------------------------------------------------------------
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* File: dfan.h
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* Purpose: header file for the Annotations set
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* Invokes: df.h
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* Contents:
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* Structure definitions: DFANdirentry, DFANdirhead
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* Constant definitions: DFAN_LABEL, DFAN_DESC
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* Remarks: none
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*----------------------------------------------------------------------------*/
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#ifndef DFAN_H /* avoid re-inclusion */
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#define DFAN_H
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#include "hdf.h"
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#define DFAN_LABEL 0
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#define DFAN_DESC 1
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#define DFAN_LAB_BLKSIZE 64 /* default blksize to use for labels */
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#define DFAN_DESC_BLKSIZE 512 /* default blksize to use for descriptions */
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#define DFAN_DEFENTRIES 16 /* no of dir entries to add at a time */
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/*
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* This structure stores an entry in the label/desc directory
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* for a label/desc in the file, it gives the ref of the label/desc,
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* and the tag/ref of the data item to which the label/desc relates
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*/
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typedef struct
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{
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uint16 annref; /* ref of annotation */
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uint16 datatag; /* tag of data */
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uint16 dataref; /* ref of data */
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}
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DFANdirentry;
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/*
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* This structure is a head node for the directory, which is organized as
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* as a linked list of arrays. DFANdirentry is the structure of an
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* array element, while DFANdirhead is the list element
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*/
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typedef struct DFANdirhead
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{
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struct DFANdirhead *next; /* list element */
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int32 nentries; /* Numer of entries */
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DFANdirentry *entries; /* actually an arbitrary size array */
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}
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DFANdirhead;
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#endif /* DFAN_H */
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