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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 COPYING file, which can be found at the root of the source code *
* distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. *
* If you do not have access to either file, you may request a copy from *
* help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*-------------------------------------------------------------------------
*
* Created: H5Gpublic.h
* Jul 11 1997
* Robb Matzke <matzke@llnl.gov>
*
* Purpose: Public declarations for the H5G package
*
*-------------------------------------------------------------------------
*/
#ifndef _H5Gpublic_H
#define _H5Gpublic_H
/* System headers needed by this file */
#include <sys/types.h>
/* Public headers needed by this file */
#include "H5public.h" /* Generic Functions */
#include "H5Lpublic.h" /* Links */
#include "H5Opublic.h" /* Object headers */
#include "H5Tpublic.h" /* Datatypes */
/*****************/
/* Public Macros */
/*****************/
#ifdef __cplusplus
extern "C" {
#endif
/*******************/
/* Public Typedefs */
/*******************/
/* Types of link storage for groups */
typedef enum H5G_storage_type_t {
H5G_STORAGE_TYPE_UNKNOWN = -1, /* Unknown link storage type */
H5G_STORAGE_TYPE_SYMBOL_TABLE, /* Links in group are stored with a "symbol table" */
/* (this is sometimes called "old-style" groups) */
H5G_STORAGE_TYPE_COMPACT, /* Links are stored in object header */
H5G_STORAGE_TYPE_DENSE /* Links are stored in fractal heap & indexed with v2 B-tree */
} H5G_storage_type_t;
/* Information struct for group (for H5Gget_info/H5Gget_info_by_name/H5Gget_info_by_idx) */
typedef struct H5G_info_t {
H5G_storage_type_t storage_type; /* Type of storage for links in group */
hsize_t nlinks; /* Number of links in group */
int64_t max_corder; /* Current max. creation order value for group */
hbool_t mounted; /* Whether group has a file mounted on it */
} H5G_info_t;
/********************/
/* Public Variables */
/********************/
/*********************/
/* Public Prototypes */
/*********************/
H5_DLL hid_t H5Gcreate2(hid_t loc_id, const char *name, hid_t lcpl_id,
hid_t gcpl_id, hid_t gapl_id);
H5_DLL hid_t H5Gcreate_anon(hid_t loc_id, hid_t gcpl_id, hid_t gapl_id);
H5_DLL hid_t H5Gopen2(hid_t loc_id, const char *name, hid_t gapl_id);
H5_DLL hid_t H5Gget_create_plist(hid_t group_id);
H5_DLL herr_t H5Gget_info(hid_t loc_id, H5G_info_t *ginfo);
H5_DLL herr_t H5Gget_info_by_name(hid_t loc_id, const char *name, H5G_info_t *ginfo,
hid_t lapl_id);
H5_DLL herr_t H5Gget_info_by_idx(hid_t loc_id, const char *group_name,
H5_index_t idx_type, H5_iter_order_t order, hsize_t n, H5G_info_t *ginfo,
hid_t lapl_id);
H5_DLL herr_t H5Gclose(hid_t group_id);
H5_DLL herr_t H5Gflush(hid_t group_id);
H5_DLL herr_t H5Grefresh(hid_t group_id);
/* Symbols defined for compatibility with previous versions of the HDF5 API.
*
* Use of these symbols is deprecated.
*/
#ifndef H5_NO_DEPRECATED_SYMBOLS
/* Macros */
/* Link definitions */
#define H5G_SAME_LOC H5L_SAME_LOC
#define H5G_LINK_ERROR H5L_TYPE_ERROR
#define H5G_LINK_HARD H5L_TYPE_HARD
#define H5G_LINK_SOFT H5L_TYPE_SOFT
#define H5G_link_t H5L_type_t
/* Macros for types of objects in a group (see H5G_obj_t definition) */
#define H5G_NTYPES 256 /* Max possible number of types */
#define H5G_NLIBTYPES 8 /* Number of internal types */
#define H5G_NUSERTYPES (H5G_NTYPES - H5G_NLIBTYPES)
#define H5G_USERTYPE(X) (8 + (X)) /* User defined types */
/* Typedefs */
/*
* An object has a certain type. The first few numbers are reserved for use
* internally by HDF5. Users may add their own types with higher values. The
* values are never stored in the file -- they only exist while an
* application is running. An object may satisfy the `isa' function for more
* than one type.
*/
typedef enum H5G_obj_t {
H5G_UNKNOWN = -1, /* Unknown object type */
H5G_GROUP, /* Object is a group */
H5G_DATASET, /* Object is a dataset */
H5G_TYPE, /* Object is a named data type */
H5G_LINK, /* Object is a symbolic link */
H5G_UDLINK, /* Object is a user-defined link */
H5G_RESERVED_5, /* Reserved for future use */
H5G_RESERVED_6, /* Reserved for future use */
H5G_RESERVED_7 /* Reserved for future use */
} H5G_obj_t;
/* Prototype for H5Giterate() operator */
typedef herr_t (*H5G_iterate_t)(hid_t group, const char *name, void *op_data);
/* Information about an object */
typedef struct H5G_stat_t {
unsigned long fileno[2]; /*file number */
unsigned long objno[2]; /*object number */
unsigned nlink; /*number of hard links to object*/
H5G_obj_t type; /*basic object type */
time_t mtime; /*modification time */
size_t linklen; /*symbolic link value length */
H5O_stat_t ohdr; /* Object header information */
} H5G_stat_t;
/* Function prototypes */
H5_DLL hid_t H5Gcreate1(hid_t loc_id, const char *name, size_t size_hint);
H5_DLL hid_t H5Gopen1(hid_t loc_id, const char *name);
H5_DLL herr_t H5Glink(hid_t cur_loc_id, H5G_link_t type, const char *cur_name,
const char *new_name);
H5_DLL herr_t H5Glink2(hid_t cur_loc_id, const char *cur_name, H5G_link_t type,
hid_t new_loc_id, const char *new_name);
H5_DLL herr_t H5Gmove(hid_t src_loc_id, const char *src_name,
const char *dst_name);
H5_DLL herr_t H5Gmove2(hid_t src_loc_id, const char *src_name, hid_t dst_loc_id,
const char *dst_name);
H5_DLL herr_t H5Gunlink(hid_t loc_id, const char *name);
H5_DLL herr_t H5Gget_linkval(hid_t loc_id, const char *name, size_t size,
char *buf/*out*/);
H5_DLL herr_t H5Gset_comment(hid_t loc_id, const char *name, const char *comment);
H5_DLL int H5Gget_comment(hid_t loc_id, const char *name, size_t bufsize,
char *buf);
H5_DLL herr_t H5Giterate(hid_t loc_id, const char *name, int *idx,
H5G_iterate_t op, void *op_data);
H5_DLL herr_t H5Gget_num_objs(hid_t loc_id, hsize_t *num_objs);
H5_DLL herr_t H5Gget_objinfo(hid_t loc_id, const char *name,
hbool_t follow_link, H5G_stat_t *statbuf/*out*/);
H5_DLL ssize_t H5Gget_objname_by_idx(hid_t loc_id, hsize_t idx, char* name,
size_t size);
H5_DLL H5G_obj_t H5Gget_objtype_by_idx(hid_t loc_id, hsize_t idx);
#endif /* H5_NO_DEPRECATED_SYMBOLS */
#ifdef __cplusplus
}
#endif
#endif /* _H5Gpublic_H */
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