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
|
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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: H5Ocont.c
*
* Purpose: The object header continuation message. This
* message is only generated and read from within
* the H5O package. Therefore, do not change
* any definitions in this file!
*
*-------------------------------------------------------------------------
*/
#include "H5Omodule.h" /* This source code file is part of the H5O module */
#include "H5private.h" /* Generic Functions */
#include "H5Eprivate.h" /* Error handling */
#include "H5FLprivate.h" /* Free Lists */
#include "H5MFprivate.h" /* File memory management */
#include "H5Opkg.h" /* Object headers */
/* PRIVATE PROTOTYPES */
static void *H5O__cont_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__cont_encode(H5F_t *f, hbool_t disable_shared, uint8_t *p, const void *_mesg);
static size_t H5O__cont_size(const H5F_t *f, hbool_t disable_shared, const void *_mesg);
static herr_t H5O__cont_free(void *mesg);
static herr_t H5O__cont_delete(H5F_t *f, H5O_t *open_oh, void *_mesg);
static herr_t H5O__cont_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_CONT[1] = {{
H5O_CONT_ID, /*message id number */
"hdr continuation", /*message name for debugging */
sizeof(H5O_cont_t), /*native message size */
0, /* messages are shareable? */
H5O__cont_decode, /*decode message */
H5O__cont_encode, /*encode message */
NULL, /*no copy method */
H5O__cont_size, /*size of header continuation */
NULL, /*reset method */
H5O__cont_free, /* free method */
H5O__cont_delete, /* 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__cont_debug /*debugging */
}};
/* Declare the free list for H5O_cont_t's */
H5FL_DEFINE(H5O_cont_t);
/*-------------------------------------------------------------------------
* Function: H5O__cont_decode
*
* Purpose: Decode the raw header continuation message.
*
* Return: Success: Ptr to the new native message
* Failure: NULL
*-------------------------------------------------------------------------
*/
static void *
H5O__cont_decode(H5F_t *f, H5O_t H5_ATTR_UNUSED *open_oh, unsigned H5_ATTR_UNUSED mesg_flags,
unsigned H5_ATTR_UNUSED *ioflags, size_t p_size, const uint8_t *p)
{
H5O_cont_t *cont = NULL;
const uint8_t *p_end = p + p_size - 1;
void *ret_value = NULL;
FUNC_ENTER_PACKAGE
assert(f);
assert(p);
/* Allocate space for the message */
if (NULL == (cont = H5FL_MALLOC(H5O_cont_t)))
HGOTO_ERROR(H5E_OHDR, H5E_NOSPACE, NULL, "memory allocation failed");
/* Decode */
if (H5_IS_BUFFER_OVERFLOW(p, H5F_sizeof_addr(f), p_end))
HGOTO_ERROR(H5E_OHDR, H5E_OVERFLOW, NULL, "ran off end of input buffer while decoding");
H5F_addr_decode(f, &p, &(cont->addr));
if (H5_IS_BUFFER_OVERFLOW(p, H5F_sizeof_size(f), p_end))
HGOTO_ERROR(H5E_OHDR, H5E_OVERFLOW, NULL, "ran off end of input buffer while decoding");
H5F_DECODE_LENGTH(f, p, cont->size);
cont->chunkno = 0;
/* Set return value */
ret_value = cont;
done:
if (NULL == ret_value && NULL != cont)
H5FL_FREE(H5O_cont_t, cont);
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O__cont_decode() */
/*-------------------------------------------------------------------------
* Function: H5O__cont_encode
*
* Purpose: Encodes a continuation message.
*
* Return: Non-negative on success/Negative on failure
*
*-------------------------------------------------------------------------
*/
static herr_t
H5O__cont_encode(H5F_t *f, hbool_t H5_ATTR_UNUSED disable_shared, uint8_t *p, const void *_mesg)
{
const H5O_cont_t *cont = (const H5O_cont_t *)_mesg;
FUNC_ENTER_PACKAGE_NOERR
/* check args */
assert(f);
assert(p);
assert(cont);
assert(H5F_addr_defined(cont->addr));
assert(cont->size > 0);
/* encode */
H5F_addr_encode(f, &p, cont->addr);
H5F_ENCODE_LENGTH(f, p, cont->size);
FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5O__cont_encode() */
/*-------------------------------------------------------------------------
* Function: H5O__cont_size
*
* Purpose: Returns the size of the raw message in bytes not counting
* the message type or size fields, but only the data fields.
* This function doesn't take into account alignment.
*
* Return: Success: Message data size in bytes without alignment.
*
* Failure: zero
*
*-------------------------------------------------------------------------
*/
static size_t
H5O__cont_size(const H5F_t *f, hbool_t H5_ATTR_UNUSED disable_shared, const void H5_ATTR_UNUSED *_mesg)
{
size_t ret_value = 0; /* Return value */
FUNC_ENTER_PACKAGE_NOERR
/* Set return value */
ret_value = (size_t)(H5F_SIZEOF_ADDR(f) + /* Continuation header address */
H5F_SIZEOF_SIZE(f)); /* Continuation header length */
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O__cont_size() */
/*-------------------------------------------------------------------------
* Function: H5O__cont_free
*
* Purpose: Frees the message
*
* Return: Non-negative on success/Negative on failure
*
*-------------------------------------------------------------------------
*/
static herr_t
H5O__cont_free(void *mesg)
{
FUNC_ENTER_PACKAGE_NOERR
assert(mesg);
mesg = H5FL_FREE(H5O_cont_t, mesg);
FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5O__cont_free() */
/*-------------------------------------------------------------------------
* Function: H5O__cont_delete
*
* Purpose: Free file space referenced by message
*
* Return: Non-negative on success/Negative on failure
*
*-------------------------------------------------------------------------
*/
static herr_t
H5O__cont_delete(H5F_t *f, H5O_t *open_oh, void *_mesg)
{
H5O_cont_t *mesg = (H5O_cont_t *)_mesg;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
/* check args */
assert(f);
assert(mesg);
/* Notify the cache that the chunk has been deleted */
/* (releases the space for the chunk) */
if (H5O__chunk_delete(f, open_oh, mesg->chunkno) < 0)
HGOTO_ERROR(H5E_OHDR, H5E_CANTDELETE, FAIL, "unable to remove chunk from cache")
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O__cont_delete() */
/*-------------------------------------------------------------------------
* Function: H5O__cont_debug
*
* Purpose: Prints debugging info.
*
* Return: Non-negative on success/Negative on failure
*
*-------------------------------------------------------------------------
*/
static herr_t
H5O__cont_debug(H5F_t H5_ATTR_UNUSED *f, const void *_mesg, FILE *stream, int indent, int fwidth)
{
const H5O_cont_t *cont = (const H5O_cont_t *)_mesg;
FUNC_ENTER_PACKAGE_NOERR
/* check args */
assert(f);
assert(cont);
assert(stream);
assert(indent >= 0);
assert(fwidth >= 0);
fprintf(stream, "%*s%-*s %" PRIuHADDR "\n", indent, "", fwidth, "Continuation address:", cont->addr);
fprintf(stream, "%*s%-*s %lu\n", indent, "", fwidth,
"Continuation size in bytes:", (unsigned long)(cont->size));
fprintf(stream, "%*s%-*s %d\n", indent, "", fwidth, "Points to chunk number:", (int)(cont->chunkno));
FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5O__cont_debug() */
|
