summaryrefslogtreecommitdiffstats
path: root/src/H5Pstrcpl.c
blob: 58cfa4c66453355da6eaeeb0fd7c6a2a10095b8d (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
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
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Copyright by The HDF Group.                                               *
 * 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://www.hdfgroup.org/licenses.               *
 * If you do not have access to either file, you may request a copy from     *
 * help@hdfgroup.org.                                                        *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/*-------------------------------------------------------------------------
 *
 * Created:		H5Pstrcpl.c
 *
 * Purpose:		String creation property list class routines
 *
 *-------------------------------------------------------------------------
 */

/****************/
/* Module Setup */
/****************/

#include "H5Pmodule.h" /* This source code file is part of the H5P module */

/***********/
/* Headers */
/***********/
#include "H5private.h"  /* Generic Functions			*/
#include "H5Eprivate.h" /* Error handling		  	*/
#include "H5Fprivate.h" /* Files */
#include "H5Ppkg.h"     /* Property lists		  	*/

/****************/
/* Local Macros */
/****************/

/* ========  String creation properties ======== */
/* Definitions for character set encoding property */
#define H5P_STRCRT_CHAR_ENCODING_SIZE sizeof(H5T_cset_t)
#define H5P_STRCRT_CHAR_ENCODING_DEF  H5F_DEFAULT_CSET
#define H5P_STRCRT_CHAR_ENCODING_ENC  H5P__strcrt_char_encoding_enc
#define H5P_STRCRT_CHAR_ENCODING_DEC  H5P__strcrt_char_encoding_dec

/******************/
/* Local Typedefs */
/******************/

/********************/
/* Package Typedefs */
/********************/

/********************/
/* Local Prototypes */
/********************/

/* Property class callbacks */
static herr_t H5P__strcrt_reg_prop(H5P_genclass_t *pclass);

/* encode & decode callbacks */
static herr_t H5P__strcrt_char_encoding_enc(const void *value, void **_pp, size_t *size);
static herr_t H5P__strcrt_char_encoding_dec(const void **_pp, void *value);

/*********************/
/* Package Variables */
/*********************/

/* String creation property list class library initialization object */
const H5P_libclass_t H5P_CLS_STRCRT[1] = {{
    "string create",        /* Class name for debugging     */
    H5P_TYPE_STRING_CREATE, /* Class type                   */

    &H5P_CLS_ROOT_g,             /* Parent class                 */
    &H5P_CLS_STRING_CREATE_g,    /* Pointer to class             */
    &H5P_CLS_STRING_CREATE_ID_g, /* Pointer to class ID          */
    NULL,                        /* Pointer to default property list ID */
    H5P__strcrt_reg_prop,        /* Default property registration routine */

    NULL, /* Class creation callback      */
    NULL, /* Class creation callback info */
    NULL, /* Class copy callback          */
    NULL, /* Class copy callback info     */
    NULL, /* Class close callback         */
    NULL  /* Class close callback info    */
}};

/*****************************/
/* Library Private Variables */
/*****************************/

/*******************/
/* Local Variables */
/*******************/

/* Property value defaults */
static const H5T_cset_t H5P_def_char_encoding_g =
    H5P_STRCRT_CHAR_ENCODING_DEF; /* Default character set encoding */

/*-------------------------------------------------------------------------
 * Function:    H5P__strcrt_reg_prop
 *
 * Purpose:     Register the string creation property list class's properties
 *
 * Return:      Non-negative on success/Negative on failure
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5P__strcrt_reg_prop(H5P_genclass_t *pclass)
{
    herr_t ret_value = SUCCEED; /* Return value */

    FUNC_ENTER_PACKAGE

    /* Register character encoding */
    if (H5P__register_real(pclass, H5P_STRCRT_CHAR_ENCODING_NAME, H5P_STRCRT_CHAR_ENCODING_SIZE,
                           &H5P_def_char_encoding_g, NULL, NULL, NULL, H5P_STRCRT_CHAR_ENCODING_ENC,
                           H5P_STRCRT_CHAR_ENCODING_DEC, NULL, NULL, NULL, NULL) < 0)
        HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class");

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5P__strcrt_reg_prop() */

/*-------------------------------------------------------------------------
 * Function:    H5Pset_char_encoding
 *
 * Purpose:     Sets the character encoding of the string.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5Pset_char_encoding(hid_t plist_id, H5T_cset_t encoding)
{
    H5P_genplist_t *plist;               /* Property list pointer */
    herr_t          ret_value = SUCCEED; /* return value */

    FUNC_ENTER_API(FAIL)
    H5TRACE2("e", "iTc", plist_id, encoding);

    /* Check arguments */
    if (encoding <= H5T_CSET_ERROR || encoding >= H5T_NCSET)
        HGOTO_ERROR(H5E_ARGS, H5E_BADRANGE, FAIL, "character encoding is not valid");

    /* Get the plist structure */
    if (NULL == (plist = H5P_object_verify(plist_id, H5P_STRING_CREATE)))
        HGOTO_ERROR(H5E_ID, H5E_BADID, FAIL, "can't find object for ID");

    /* Set the character encoding */
    if (H5P_set(plist, H5P_STRCRT_CHAR_ENCODING_NAME, &encoding) < 0)
        HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set character encoding");

done:
    FUNC_LEAVE_API(ret_value)
} /* end H5P_set_char_encoding() */

/*-------------------------------------------------------------------------
 * Function:    H5Pget_char_encoding
 *
 * Purpose:     Gets the character encoding of the string.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5Pget_char_encoding(hid_t plist_id, H5T_cset_t *encoding /*out*/)
{
    H5P_genplist_t *plist;               /* Property list pointer */
    herr_t          ret_value = SUCCEED; /* return value */

    FUNC_ENTER_API(FAIL)
    H5TRACE2("e", "i*Tc", plist_id, encoding);

    /* Get the plist structure */
    if (NULL == (plist = H5P_object_verify(plist_id, H5P_STRING_CREATE)))
        HGOTO_ERROR(H5E_ID, H5E_BADID, FAIL, "can't find object for ID");

    /* Get value */
    if (encoding)
        if (H5P_get(plist, H5P_STRCRT_CHAR_ENCODING_NAME, encoding) < 0)
            HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get character encoding flag");

done:
    FUNC_LEAVE_API(ret_value)
} /* end H5Pget_char_encoding() */

/*-------------------------------------------------------------------------
 * Function:       H5P__strcrt_char_encoding_enc
 *
 * Purpose:        Callback routine which is called whenever the character
 *                 set encoding property in the string create property list
 *                 is encoded.
 *
 * Return:	   Success:	Non-negative
 *		   Failure:	Negative
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5P__strcrt_char_encoding_enc(const void *value, void **_pp, size_t *size)
{
    const H5T_cset_t *encoding = (const H5T_cset_t *)value; /* Create local alias for values */
    uint8_t         **pp       = (uint8_t **)_pp;

    FUNC_ENTER_PACKAGE_NOERR

    /* Sanity check */
    assert(encoding);
    assert(size);

    if (NULL != *pp)
        /* Encode character set encoding */
        *(*pp)++ = (uint8_t)*encoding;

    /* Size of character set encoding */
    (*size)++;

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5P__strcrt_char_encoding_enc() */

/*-------------------------------------------------------------------------
 * Function:       H5P__strcrt_char_encoding_dec
 *
 * Purpose:        Callback routine which is called whenever the character
 *                 set encoding property in the string create property list
 *                 is decoded.
 *
 * Return:	   Success:	Non-negative
 *		   Failure:	Negative
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5P__strcrt_char_encoding_dec(const void **_pp, void *_value)
{
    H5T_cset_t     *encoding = (H5T_cset_t *)_value; /* Character set encoding */
    const uint8_t **pp       = (const uint8_t **)_pp;

    FUNC_ENTER_PACKAGE_NOERR

    /* Sanity checks */
    assert(pp);
    assert(*pp);
    assert(encoding);

    /* Decode character set encoding */
    *encoding = (H5T_cset_t) * (*pp)++;

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5P__strcrt_char_encoding_dec() */