summaryrefslogtreecommitdiffstats
path: root/src/H5Oname.c
blob: 1f20f1063bdd162beda6dd8c7c3acc9f14a8f494 (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
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * 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:             H5Oname.c
 *                      Aug 12 1997
 *                      Robb Matzke <matzke@llnl.gov>
 *
 * Purpose:             Object name message.
 *
 *-------------------------------------------------------------------------
 */

#include "H5Omodule.h"          /* This source code file is part of the H5O module */


#include "H5private.h"		/* Generic Functions			*/
#include "H5Eprivate.h"		/* Error handling		  	*/
#include "H5MMprivate.h"	/* Memory management			*/
#include "H5Opkg.h"             /* Object headers			*/


/* PRIVATE PROTOTYPES */
static void *H5O__name_decode(H5F_t *f, H5O_t *open_oh, unsigned mesg_flags,
    unsigned *ioflags, size_t p_size, const uint8_t *p);
static herr_t H5O_name_encode(H5F_t *f, hbool_t disable_shared, uint8_t *p, const void *_mesg);
static void *H5O_name_copy(const void *_mesg, void *_dest);
static size_t H5O_name_size(const H5F_t *f, hbool_t disable_shared, const void *_mesg);
static herr_t H5O__name_reset(void *_mesg);
static herr_t H5O__name_debug(H5F_t *f, const void *_mesg, FILE * stream,
    int indent, int fwidth);

/* This message derives from H5O message class */
const H5O_msg_class_t H5O_MSG_NAME[1] = {{
    H5O_NAME_ID,            	/*message id number             */
    "name",                 	/*message name for debugging    */
    sizeof(H5O_name_t),     	/*native message size           */
    0,				/* messages are sharable?       */
    H5O__name_decode,        	/*decode message                */
    H5O_name_encode,        	/*encode message                */
    H5O_name_copy,          	/*copy the native value         */
    H5O_name_size,          	/*raw message size              */
    H5O__name_reset,         	/*free internal memory          */
    NULL,			/* free method			*/
    NULL,		        /* file delete method		*/
    NULL,			/* link method			*/
    NULL,			/*set share method		*/
    NULL,		    	/*can share method		*/
    NULL,			/* pre copy native value to file */
    NULL,			/* copy native value to file    */
    NULL,			/* post copy native value to file    */
    NULL,			/* get creation index		*/
    NULL,			/* set creation index		*/
    H5O__name_debug         	/*debug the message             */
}};


/*-------------------------------------------------------------------------
 * Function:    H5O__name_decode
 *
 * Purpose:     Decode a name message and return a pointer to a new
 *              native message struct.
 *
 * Return:      Success:        Ptr to new message in native struct.
 *
 *              Failure:        NULL
 *
 * Programmer:  Robb Matzke
 *              matzke@llnl.gov
 *              Aug 12 1997
 *
 *-------------------------------------------------------------------------
 */
static void *
H5O__name_decode(H5F_t H5_ATTR_UNUSED *f, H5O_t H5_ATTR_UNUSED *open_oh,
    unsigned H5_ATTR_UNUSED mesg_flags, unsigned H5_ATTR_UNUSED *ioflags,
    size_t H5_ATTR_UNUSED p_size, const uint8_t *p)
{
    H5O_name_t          *mesg;
    void                *ret_value = NULL;     /* Return value */

    FUNC_ENTER_STATIC

    /* check args */
    HDassert(f);
    HDassert(p);

    /* decode */
    if(NULL == (mesg = (H5O_name_t *)H5MM_calloc(sizeof(H5O_name_t))))
	HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed")
    if(NULL == (mesg->s = (char *)H5MM_strdup((const char *)p)))
	HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed")

    /* Set return value */
    ret_value = mesg;

done:
    if(NULL == ret_value)
        if(mesg)
            mesg = (H5O_name_t *)H5MM_xfree(mesg);

    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O__name_decode() */


/*-------------------------------------------------------------------------
 * Function:    H5O_name_encode
 *
 * Purpose:     Encodes a name message.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Robb Matzke
 *              matzke@llnl.gov
 *              Aug 12 1997
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5O_name_encode(H5F_t H5_ATTR_UNUSED *f, hbool_t H5_ATTR_UNUSED disable_shared, uint8_t *p, const void *_mesg)
{
    const H5O_name_t       *mesg = (const H5O_name_t *) _mesg;

    FUNC_ENTER_NOAPI_NOINIT_NOERR

    /* check args */
    HDassert(f);
    HDassert(p);
    HDassert(mesg && mesg->s);

    /* encode */
    HDstrcpy((char*)p, mesg->s);

    FUNC_LEAVE_NOAPI(SUCCEED)
}


/*-------------------------------------------------------------------------
 * Function:    H5O_name_copy
 *
 * Purpose:     Copies a message from _MESG to _DEST, allocating _DEST if
 *              necessary.
 *
 * Return:      Success:        Ptr to _DEST
 *
 *              Failure:        NULL
 *
 * Programmer:  Robb Matzke
 *              matzke@llnl.gov
 *              Aug 12 1997
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static void *
H5O_name_copy(const void *_mesg, void *_dest)
{
    const H5O_name_t    *mesg = (const H5O_name_t *) _mesg;
    H5O_name_t          *dest = (H5O_name_t *) _dest;
    void                *ret_value = NULL;     /* Return value */

    FUNC_ENTER_NOAPI_NOINIT

    /* check args */
    HDassert(mesg);

    if(!dest && NULL == (dest = (H5O_name_t *)H5MM_calloc(sizeof(H5O_name_t))))
	HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed")

    /* copy */
    *dest = *mesg;
    if(NULL == (dest->s = H5MM_xstrdup(mesg->s)))
        HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed")

    /* Set return value */
    ret_value = dest;

done:
    if(NULL == ret_value)
        if(dest && NULL == _dest)
            dest = (H5O_name_t *)H5MM_xfree(dest);

    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_name_copy() */


/*-------------------------------------------------------------------------
 * Function:    H5O_name_size
 *
 * Purpose:     Returns the size of the raw message in bytes not
 *              counting the message typ or size fields, but only the data
 *              fields.  This function doesn't take into account
 *              alignment.
 *
 * Return:      Success:        Message data size in bytes w/o alignment.
 *
 *              Failure:        Negative
 *
 * Programmer:  Robb Matzke
 *              matzke@llnl.gov
 *              Aug 12 1997
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static size_t
H5O_name_size(const H5F_t H5_ATTR_UNUSED *f, hbool_t H5_ATTR_UNUSED disable_shared, const void *_mesg)
{
    const H5O_name_t       *mesg = (const H5O_name_t *) _mesg;
    size_t                  ret_value = 0;      /* Return value */

    FUNC_ENTER_NOAPI_NOINIT_NOERR

    /* check args */
    HDassert(f);
    HDassert(mesg);

    ret_value = mesg->s ? HDstrlen(mesg->s) + 1 : 0;

    FUNC_LEAVE_NOAPI(ret_value)
}


/*-------------------------------------------------------------------------
 * Function:    H5O__name_reset
 *
 * Purpose:     Frees internal pointers and resets the message to an
 *              initial state.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Robb Matzke
 *              matzke@llnl.gov
 *              Aug 12 1997
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5O__name_reset(void *_mesg)
{
    H5O_name_t             *mesg = (H5O_name_t *) _mesg;

    FUNC_ENTER_STATIC_NOERR

    /* check args */
    HDassert(mesg);

    /* reset */
    mesg->s = (char *)H5MM_xfree(mesg->s);

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5O__name_reset() */


/*-------------------------------------------------------------------------
 * Function:    H5O__name_debug
 *
 * Purpose:     Prints debugging info for the message.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Robb Matzke
 *              matzke@llnl.gov
 *              Aug 12 1997
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5O__name_debug(H5F_t H5_ATTR_UNUSED *f, const void *_mesg, FILE *stream,
    int indent, int fwidth)
{
    const H5O_name_t	*mesg = (const H5O_name_t *)_mesg;

    FUNC_ENTER_NOAPI_NOINIT_NOERR

    /* check args */
    HDassert(f);
    HDassert(mesg);
    HDassert(stream);
    HDassert(indent >= 0);
    HDassert(fwidth >= 0);

    HDfprintf(stream, "%*s%-*s `%s'\n", indent, "", fwidth,
            "Name:",
            mesg->s);

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5O__name_debug() */