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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* This file is part of HDF5. The full HDF5 copyright notice, including *
* terms governing use, modification, and redistribution, is contained in *
* the files COPYING and Copyright.html. COPYING can be found at the root *
* of the source code distribution tree; Copyright.html can be found at the *
* root level of an installed copy of the electronic HDF5 document set and *
* is linked from the top-level documents page. It can also be found at *
* http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* This file contains public declarations for the H5R module.
*/
#ifndef _H5Rpublic_H
#define _H5Rpublic_H
/* Public headers needed by this file */
#include "H5public.h"
#include "H5Gpublic.h"
#include "H5Ipublic.h"
/*
* Reference types allowed.
*/
typedef enum {
H5R_BADTYPE = (-1), /*invalid Reference Type */
H5R_OBJECT, /*Object reference */
H5R_DATASET_REGION, /*Dataset Region Reference */
H5R_REGION, /*Revised Dataset Region Reference */
H5R_ATTR, /*Attribute Reference */
H5R_MAXTYPE /*highest type (Invalid as true type) */
} H5R_type_t;
/* Note! Be careful with the sizes of the references because they should really
* depend on the run-time values in the file. Unfortunately, the arrays need
* to be defined at compile-time, so we have to go with the worst case sizes for
* them. -QAK
*/
#define H5R_OBJ_REF_BUF_SIZE sizeof(haddr_t)
/* Object reference structure for user's code */
typedef haddr_t hobj_ref_t; /* Needs to be large enough to store largest haddr_t in a worst case machine (ie. 8 bytes currently) */
#define H5R_DSET_REG_REF_BUF_SIZE (sizeof(haddr_t)+4)
/* 4 is used instead of sizeof(int) to permit portability between
the Crays and other machines (the heap ID is always encoded as an int32 anyway)
*/
/* Dataset Region reference structure for user's code */
typedef unsigned char hdset_reg_ref_t[H5R_DSET_REG_REF_BUF_SIZE];/* Buffer to store heap ID and index */
/* Needs to be large enough to store largest haddr_t in a worst case machine (ie. 8 bytes currently) plus an int */
/* Variable length region reference struct in memory */
typedef struct hreg_ref_t {
size_t buf_size;/* Size of serialized region reference */
void *buf; /* Pointer to serialized region reference */
} hreg_ref_t;
#define H5R_REG_REF_INITIALIZER { 0, NULL }
#define H5R_ATTR_REF_BUF_SIZE (2 * (sizeof(haddr_t) + 4))
/* Attribute reference structure for user's code */
typedef unsigned char hattr_ref_t[H5R_ATTR_REF_BUF_SIZE];/* Buffer to store two heap IDs and indices */
/* Needs to be large enough to store 2x the largest haddr_t in a worst case machine (ie. 8 bytes currently) plus an int */
/* Publicly visible data structures */
#ifdef __cplusplus
extern "C" {
#endif
/* Functions in H5R.c */
H5_DLL herr_t H5Rcreate(void *ref, H5R_type_t ref_type, ...);
H5_DLL hid_t H5Rdereference2(hid_t obj_id, hid_t oapl_id, H5R_type_t ref_type, const void *ref);
H5_DLL hid_t H5Rget_region(hid_t dataset, H5R_type_t ref_type, const void *ref);
H5_DLL herr_t H5Rget_obj_type2(hid_t id, H5R_type_t ref_type, const void *_ref,
H5O_type_t *obj_type);
H5_DLL ssize_t H5Rget_name(hid_t loc_id, H5R_type_t ref_type, const void *ref,
char *name/*out*/, size_t size);
/* Symbols defined for compatibility with previous versions of the HDF5 API.
*
* Use of these symbols is deprecated.
*/
#ifndef H5_NO_DEPRECATED_SYMBOLS
/* Macros */
/* Typedefs */
/* Function prototypes */
H5_DLL H5G_obj_t H5Rget_obj_type1(hid_t id, H5R_type_t ref_type, const void *_ref);
H5_DLL hid_t H5Rdereference1(hid_t obj_id, H5R_type_t ref_type, const void *ref);
#endif /* H5_NO_DEPRECATED_SYMBOLS */
#ifdef __cplusplus
}
#endif
#endif /* _H5Rpublic_H */
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