summaryrefslogtreecommitdiffstats
path: root/src/H5Gpublic.h
blob: 611ff0851a3650edbe65b3013bc8f35c72daab94 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * 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://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html.  If you do not have     *
 * access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/*-------------------------------------------------------------------------
 *
 * Created:             H5Gproto.h
 *                      Jul 11 1997
 *                      Robb Matzke <matzke@llnl.gov>
 *
 * Purpose:             Public declarations for the H5G package (symbol
 *                      tables).
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
#ifndef _H5Gpublic_H
#define _H5Gpublic_H

/* Public headers needed by this file */
#include <sys/types.h>

#include "H5public.h"
#include "H5Ipublic.h"
#include "H5Opublic.h"

#ifdef __cplusplus
extern "C" {
#endif

/* Types of links */
typedef enum H5G_link_t {
    H5G_LINK_ERROR	= -1,
    H5G_LINK_HARD	= 0,
    H5G_LINK_SOFT	= 1
} H5G_link_t;

/*
 * 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.
 */
#ifdef H5_WANT_H5_V1_4_COMPAT
#define    H5G_UNKNOWN          -1		/* Unknown object type		*/
#define    H5G_LINK             0		/* Object is a symbolic link	*/
#define    H5G_GROUP            1		/* Object is a group		*/
#define    H5G_DATASET          2		/* Object is a dataset		*/
#define    H5G_TYPE             3		/* Object is a named data type	*/
#define    H5G_RESERVED_4       4		/* Reserved for future use	*/
#define    H5G_RESERVED_5       5		/* Reserved for future use	*/
#define    H5G_RESERVED_6       6		/* Reserved for future use	*/
#define    H5G_RESERVED_7       7		/* Reserved for future use	*/
#else /*H5_WANT_H5_V1_4_COMPAT*/
typedef enum H5G_obj_t {
    H5G_UNKNOWN = -1,		/* Unknown object type		*/
    H5G_LINK,		        /* Object is a symbolic link	*/
    H5G_GROUP,		        /* Object is a group		*/
    H5G_DATASET,		/* Object is a dataset		*/
    H5G_TYPE,			/* Object is a named data type	*/
    H5G_RESERVED_4,		/* Reserved for future use	*/
    H5G_RESERVED_5,		/* Reserved for future use	*/
    H5G_RESERVED_6,		/* Reserved for future use	*/
    H5G_RESERVED_7		/* Reserved for future use	*/
} H5G_obj_t;
#endif /*H5_WANT_H5_V1_4_COMPAT*/

#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		*/

/* 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*/
#ifdef H5_WANT_H5_V1_4_COMPAT
    int 		type;		/*basic object type		*/
#else /*H5_WANT_H5_V1_4_COMPAT*/
    H5G_obj_t 		type;		/*basic object type		*/
#endif /*H5_WANT_H5_V1_4_COMPAT*/
    time_t		mtime;		/*modification time		*/
    size_t		linklen;	/*symbolic link value length	*/
    H5O_stat_t          ohdr;           /* Object header information    */
} H5G_stat_t;

#define H5G_SAME_LOC 0
#define H5Glink(cur_loc_id, type, cur_name, new_name) \
    H5Glink2(cur_loc_id, cur_name, type, H5G_SAME_LOC, new_name)
#define H5Gmove(src_loc_id, src_name, dst_name) \
    H5Gmove2(src_loc_id, src_name, H5G_SAME_LOC, dst_name)

typedef herr_t (*H5G_iterate_t)(hid_t group, const char *name,
				void *op_data);

H5_DLL hid_t H5Gcreate(hid_t loc_id, const char *name, size_t size_hint);
H5_DLL hid_t H5Gopen(hid_t loc_id, const char *name);
H5_DLL herr_t H5Gclose(hid_t group_id);
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 ssize_t H5Gget_objname_by_idx(hid_t loc_id, hsize_t idx, char* name, size_t size);
#ifdef H5_WANT_H5_V1_4_COMPAT
H5_DLL int H5Gget_objtype_by_idx(hid_t loc_id, hsize_t idx);
#else /*H5_WANT_H5_V1_4_COMPAT*/
H5_DLL H5G_obj_t H5Gget_objtype_by_idx(hid_t loc_id, hsize_t idx);
#endif /*H5_WANT_H5_V1_4_COMPAT*/
H5_DLL herr_t H5Gmove2(hid_t src_loc, const char *src, hid_t dst_loc,
			const char *dst);
H5_DLL herr_t H5Glink2(hid_t src_loc, const char *cur_name, H5G_link_t type,
		        hid_t dst_loc, const char *new_name);
H5_DLL herr_t H5Gunlink(hid_t loc_id, const char *name);
H5_DLL herr_t H5Gget_objinfo(hid_t loc_id, const char *name,
			      hbool_t follow_link, H5G_stat_t *statbuf/*out*/);
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);

#ifdef __cplusplus
}
#endif
#endif