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
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
|
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*-------------------------------------------------------------------------
*
* Created: H5Pdeprec.c
* October 11 2007
* Quincey Koziol <koziol@hdfgroup.org>
*
* Purpose: Deprecated functions from the H5P interface. These
* functions are here for compatibility purposes and may be
* removed in the future. Applications should switch to the
* newer APIs.
*
*-------------------------------------------------------------------------
*/
/****************/
/* Module Setup */
/****************/
#define H5P_PACKAGE /*suppress error about including H5Ppkg */
/* Interface initialization */
#define H5_INTERFACE_INIT_FUNC H5P_init_deprec_interface
/***********/
/* Headers */
/***********/
#include "H5private.h" /* Generic Functions */
#include "H5Eprivate.h" /* Error handling */
#include "H5Iprivate.h" /* IDs */
#include "H5Ppkg.h" /* Property lists */
/****************/
/* Local Macros */
/****************/
/******************/
/* Local Typedefs */
/******************/
/********************/
/* Package Typedefs */
/********************/
/********************/
/* Local Prototypes */
/********************/
/*********************/
/* Package Variables */
/*********************/
/*****************************/
/* Library Private Variables */
/*****************************/
/*******************/
/* Local Variables */
/*******************/
/*--------------------------------------------------------------------------
NAME
H5P_init_deprec_interface -- Initialize interface-specific information
USAGE
herr_t H5P_init_deprec_interface()
RETURNS
Non-negative on success/Negative on failure
DESCRIPTION
Initializes any interface-specific data or routines. (Just calls
H5P_init() currently).
--------------------------------------------------------------------------*/
static herr_t
H5P_init_deprec_interface(void)
{
FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5P_init_deprec_interface)
FUNC_LEAVE_NOAPI(H5P_init())
} /* H5P_init_deprec_interface() */
#ifndef H5_NO_DEPRECATED_SYMBOLS
/*--------------------------------------------------------------------------
NAME
H5Pregister1
PURPOSE
Routine to register a new property in a property list class.
USAGE
herr_t H5Pregister1(class, name, size, default, prp_create, prp_set, prp_get, prp_close)
hid_t class; IN: Property list class to close
const char *name; IN: Name of property to register
size_t size; IN: Size of property in bytes
void *def_value; IN: Pointer to buffer containing default value
for property in newly created property lists
H5P_prp_create_func_t prp_create; IN: Function pointer to property
creation callback
H5P_prp_set_func_t prp_set; IN: Function pointer to property set callback
H5P_prp_get_func_t prp_get; IN: Function pointer to property get callback
H5P_prp_delete_func_t prp_delete; IN: Function pointer to property delete callback
H5P_prp_copy_func_t prp_copy; IN: Function pointer to property copy callback
H5P_prp_close_func_t prp_close; IN: Function pointer to property close
callback
RETURNS
Returns non-negative on success, negative on failure.
DESCRIPTION
Registers a new property with a property list class. The property will
exist in all property list objects of that class after this routine is
finished. The name of the property must not already exist. The default
property value must be provided and all new property lists created with this
property will have the property value set to the default provided. Any of
the callback routines may be set to NULL if they are not needed.
Zero-sized properties are allowed and do not store any data in the
property list. These may be used as flags to indicate the presence or
absence of a particular piece of information. The 'default' pointer for a
zero-sized property may be set to NULL. The property 'create' & 'close'
callbacks are called for zero-sized properties, but the 'set' and 'get'
callbacks are never called.
The 'create' callback is called when a new property list with this
property is being created. H5P_prp_create_func_t is defined as:
typedef herr_t (*H5P_prp_create_func_t)(hid_t prop_id, const char *name,
size_t size, void *initial_value);
where the parameters to the callback function are:
hid_t prop_id; IN: The ID of the property list being created.
const char *name; IN: The name of the property being modified.
size_t size; IN: The size of the property value
void *initial_value; IN/OUT: The initial value for the property being created.
(The 'default' value passed to H5Pregister1)
The 'create' routine may modify the value to be set and those changes will
be stored as the initial value of the property. If the 'create' routine
returns a negative value, the new property value is not copied into the
property and the property list creation routine returns an error value.
The 'set' callback is called before a new value is copied into the
property. H5P_prp_set_func_t is defined as:
typedef herr_t (*H5P_prp_set_func_t)(hid_t prop_id, const char *name,
size_t size, void *value);
where the parameters to the callback function are:
hid_t prop_id; IN: The ID of the property list being modified.
const char *name; IN: The name of the property being modified.
size_t size; IN: The size of the property value
void *new_value; IN/OUT: The value being set for the property.
The 'set' routine may modify the value to be set and those changes will be
stored as the value of the property. If the 'set' routine returns a
negative value, the new property value is not copied into the property and
the property list set routine returns an error value.
The 'get' callback is called before a value is retrieved from the
property. H5P_prp_get_func_t is defined as:
typedef herr_t (*H5P_prp_get_func_t)(hid_t prop_id, const char *name,
size_t size, void *value);
where the parameters to the callback function are:
hid_t prop_id; IN: The ID of the property list being queried.
const char *name; IN: The name of the property being queried.
size_t size; IN: The size of the property value
void *value; IN/OUT: The value being retrieved for the property.
The 'get' routine may modify the value to be retrieved and those changes
will be returned to the calling function. If the 'get' routine returns a
negative value, the property value is returned and the property list get
routine returns an error value.
The 'delete' callback is called when a property is deleted from a
property list. H5P_prp_del_func_t is defined as:
typedef herr_t (*H5P_prp_del_func_t)(hid_t prop_id, const char *name,
size_t size, void *value);
where the parameters to the callback function are:
hid_t prop_id; IN: The ID of the property list the property is deleted from.
const char *name; IN: The name of the property being deleted.
size_t size; IN: The size of the property value
void *value; IN/OUT: The value of the property being deleted.
The 'delete' routine may modify the value passed in, but the value is not
used by the library when the 'delete' routine returns. If the
'delete' routine returns a negative value, the property list deletion
routine returns an error value but the property is still deleted.
The 'copy' callback is called when a property list with this
property is copied. H5P_prp_copy_func_t is defined as:
typedef herr_t (*H5P_prp_copy_func_t)(const char *name, size_t size,
void *value);
where the parameters to the callback function are:
const char *name; IN: The name of the property being copied.
size_t size; IN: The size of the property value
void *value; IN: The value of the property being copied.
The 'copy' routine may modify the value to be copied and those changes will be
stored as the value of the property. If the 'copy' routine returns a
negative value, the new property value is not copied into the property and
the property list copy routine returns an error value.
The 'close' callback is called when a property list with this
property is being destroyed. H5P_prp_close_func_t is defined as:
typedef herr_t (*H5P_prp_close_func_t)(const char *name, size_t size,
void *value);
where the parameters to the callback function are:
const char *name; IN: The name of the property being closed.
size_t size; IN: The size of the property value
void *value; IN: The value of the property being closed.
The 'close' routine may modify the value passed in, but the value is not
used by the library when the 'close' routine returns. If the
'close' routine returns a negative value, the property list close
routine returns an error value but the property list is still closed.
GLOBAL VARIABLES
COMMENTS, BUGS, ASSUMPTIONS
The 'set' callback function may be useful to range check the value being
set for the property or may perform some tranformation/translation of the
value set. The 'get' callback would then [probably] reverse the
transformation, etc. A single 'get' or 'set' callback could handle
multiple properties by performing different actions based on the property
name or other properties in the property list.
I would like to say "the property list is not closed" when a 'close'
routine fails, but I don't think that's possible due to other properties in
the list being successfully closed & removed from the property list. I
suppose that it would be possible to just remove the properties which have
successful 'close' callbacks, but I'm not happy with the ramifications
of a mangled, un-closable property list hanging around... Any comments? -QAK
EXAMPLES
REVISION LOG
--------------------------------------------------------------------------*/
herr_t
H5Pregister1(hid_t cls_id, const char *name, size_t size, void *def_value,
H5P_prp_create_func_t prp_create, H5P_prp_set_func_t prp_set,
H5P_prp_get_func_t prp_get, H5P_prp_delete_func_t prp_delete,
H5P_prp_copy_func_t prp_copy, H5P_prp_close_func_t prp_close)
{
H5P_genclass_t *pclass; /* Property list class to modify */
herr_t ret_value; /* return value */
FUNC_ENTER_API(H5Pregister1, FAIL);
H5TRACE10("e","iszxxxxxxx",cls_id,name,size,def_value,prp_create,prp_set,
prp_get,prp_delete,prp_copy,prp_close);
/* Check arguments. */
if(NULL == (pclass = H5I_object_verify(cls_id, H5I_GENPROP_CLS)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a property list class");
if(!name || !*name)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid class name");
if(size > 0 && def_value == NULL)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "properties >0 size must have default");
/* Create the new property list class */
if((ret_value = H5P_register(pclass, name, size, def_value, prp_create, prp_set, prp_get, prp_delete, prp_copy, NULL, prp_close)) < 0)
HGOTO_ERROR(H5E_PLIST, H5E_CANTREGISTER, FAIL, "unable to register property in class");
done:
FUNC_LEAVE_API(ret_value);
} /* H5Pregister1() */
#endif /* H5_NO_DEPRECATED_SYMBOLS */
|
