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
|
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/* Programmer: James Laird <jlaird@hdfgroup.org>
* Monday, January 29, 2007
*
* Purpose: A message holding "implicitly shared object header message"
* information in the superblock extension.
*/
#define H5O_PACKAGE /*suppress error about including H5Opkg */
#include "H5private.h" /* Generic Functions */
#include "H5Eprivate.h" /* Error handling */
#include "H5Opkg.h" /* Object headers */
#include "H5MMprivate.h" /* Memory management */
static void *H5O_shmesg_decode(H5F_t *f, hid_t dxpl_id, H5O_t *open_oh,
unsigned mesg_flags, unsigned *ioflags, const uint8_t *p);
static herr_t H5O_shmesg_encode(H5F_t *f, hbool_t disable_shared, uint8_t *p, const void *_mesg);
static void *H5O_shmesg_copy(const void *_mesg, void *_dest);
static size_t H5O_shmesg_size(const H5F_t *f, hbool_t disable_shared, const void *_mesg);
static herr_t H5O_shmesg_debug(H5F_t *f, hid_t dxpl_id, const void *_mesg, FILE *stream,
int indent, int fwidth);
/* This message derives from H5O message class */
const H5O_msg_class_t H5O_MSG_SHMESG[1] = {{
H5O_SHMESG_ID, /*message id number */
"shared message table", /*message name for debugging */
sizeof(H5O_shmesg_table_t), /*native message size */
0, /* messages are sharable? */
H5O_shmesg_decode, /*decode message */
H5O_shmesg_encode, /*encode message */
H5O_shmesg_copy, /*copy the native value */
H5O_shmesg_size, /*raw message size */
NULL, /*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_shmesg_debug /*debug the message */
}};
/*-------------------------------------------------------------------------
* Function: H5O_shmesg_decode
*
* Purpose: Decode a shared message table message and return a pointer
* to a newly allocated H5O_shmesg_table_t struct.
*
* Return: Success: Ptr to new message in native struct.
* Failure: NULL
*
* Programmer: James Laird
* Jan 29, 2007
*
*-------------------------------------------------------------------------
*/
static void *
H5O_shmesg_decode(H5F_t *f, hid_t H5_ATTR_UNUSED dxpl_id, H5O_t H5_ATTR_UNUSED *open_oh,
unsigned H5_ATTR_UNUSED mesg_flags, unsigned H5_ATTR_UNUSED *ioflags, const uint8_t *p)
{
H5O_shmesg_table_t *mesg; /* Native message */
void *ret_value; /* Return value */
FUNC_ENTER_NOAPI_NOINIT
/* Sanity check */
HDassert(f);
HDassert(p);
if(NULL == (mesg = (H5O_shmesg_table_t *)H5MM_calloc(sizeof(H5O_shmesg_table_t))))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed for shared message table message")
/* Retrieve version, table address, and number of indexes */
mesg->version = *p++;
H5F_addr_decode(f, &p, &(mesg->addr));
mesg->nindexes = *p++;
/* Set return value */
ret_value = (void *)mesg;
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_shmesg_decode() */
/*-------------------------------------------------------------------------
* Function: H5O_shmesg_encode
*
* Purpose: Encode a shared message table message.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: James Laird
* Jan 29, 2007
*
*-------------------------------------------------------------------------
*/
static herr_t
H5O_shmesg_encode(H5F_t *f, hbool_t H5_ATTR_UNUSED disable_shared, uint8_t *p, const void *_mesg)
{
const H5O_shmesg_table_t *mesg = (const H5O_shmesg_table_t *)_mesg;
FUNC_ENTER_NOAPI_NOINIT_NOERR
/* Sanity check */
HDassert(f);
HDassert(p);
HDassert(mesg);
/* Store version, table address, and number of indexes */
*p++ = (uint8_t)mesg->version;
H5F_addr_encode(f, &p, mesg->addr);
*p++ = (uint8_t)mesg->nindexes;
FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5O_shmesg_encode() */
/*-------------------------------------------------------------------------
* Function: H5O_shmesg_copy
*
* Purpose: Copies a message from _MESG to _DEST, allocating _DEST if
* necessary.
*
* Return: Success: Ptr to _DEST
* Failure: NULL
*
* Programmer: James Laird
* Jan 29, 2007
*
*-------------------------------------------------------------------------
*/
static void *
H5O_shmesg_copy(const void *_mesg, void *_dest)
{
const H5O_shmesg_table_t *mesg = (const H5O_shmesg_table_t *)_mesg;
H5O_shmesg_table_t *dest = (H5O_shmesg_table_t *)_dest;
void *ret_value;
FUNC_ENTER_NOAPI_NOINIT
/* Sanity check */
HDassert(mesg);
if(!dest && NULL == (dest = (H5O_shmesg_table_t *)H5MM_malloc(sizeof(H5O_shmesg_table_t))))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed for shared message table message")
/* All this message requires is a shallow copy */
*dest = *mesg;
/* Set return value */
ret_value = dest;
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_shmesg_copy() */
/*-------------------------------------------------------------------------
* Function: H5O_shmesg_size
*
* Purpose: Returns the size of the raw message in bytes not counting the
* message type or size fields, but only the data fields.
*
* Return: Success: Message data size in bytes w/o alignment.
* Failure: 0
*
* Programmer: James Laird
* Jan 29, 2007
*
*-------------------------------------------------------------------------
*/
static size_t
H5O_shmesg_size(const H5F_t *f, hbool_t H5_ATTR_UNUSED disable_shared, const void H5_ATTR_UNUSED *_mesg)
{
size_t ret_value;
FUNC_ENTER_NOAPI_NOINIT_NOERR
/* Sanity check */
HDassert(f);
ret_value = (size_t)(1 + /* Version number */
H5F_SIZEOF_ADDR(f) + /* Table address */
1); /* Number of indexes */
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_shmesg_size() */
/*-------------------------------------------------------------------------
* Function: H5O_shmesg_debug
*
* Purpose: Prints debugging info for the message.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: James Laird
* Jan 29, 2007
*
*-------------------------------------------------------------------------
*/
static herr_t
H5O_shmesg_debug(H5F_t H5_ATTR_UNUSED *f, hid_t H5_ATTR_UNUSED dxpl_id, const void *_mesg, FILE *stream,
int indent, int fwidth)
{
const H5O_shmesg_table_t *mesg = (const H5O_shmesg_table_t *)_mesg;
FUNC_ENTER_NOAPI_NOINIT_NOERR
/* Sanity check */
HDassert(f);
HDassert(mesg);
HDassert(stream);
HDassert(indent >= 0);
HDassert(fwidth >= 0);
HDfprintf(stream, "%*s%-*s %u\n", indent, "", fwidth,
"Version:", mesg->version);
HDfprintf(stream, "%*s%-*s %a (rel)\n", indent, "", fwidth,
"Shared message table address:", mesg->addr);
HDfprintf(stream, "%*s%-*s %u\n", indent, "", fwidth,
"Number of indexes:", mesg->nindexes);
FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5O_shmesg_debug() */
|
