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
|
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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://www.hdfgroup.org/licenses. *
* If you do not have access to either file, you may request a copy from *
* help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*-------------------------------------------------------------------------
*
* Created: H5Cepoch.c
* June 5 2004
* Quincey Koziol
*
* Purpose: Metadata cache epoch callbacks.
*
*-------------------------------------------------------------------------
*/
/***********/
/* Headers */
/***********/
#include "H5private.h" /* Generic Functions */
#include "H5ACprivate.h" /* Metadata cache */
/****************/
/* Local Macros */
/****************/
/******************/
/* Local Typedefs */
/******************/
/********************/
/* Local Prototypes */
/********************/
/****************************************************************************
*
* declarations for epoch marker cache entries.
*
* As a strategy for automatic cache size reduction, the cache may insert
* marker entries in the LRU list at the end of each epoch. These markers
* are then used to identify entries that have not been accessed for n
* epochs so that they can be evicted from the cache.
*
****************************************************************************/
static herr_t H5C__epoch_marker_get_initial_load_size(void *udata_ptr, size_t *image_len_ptr);
static herr_t H5C__epoch_marker_get_final_load_size(const void *image_ptr, size_t image_len_ptr,
void *udata_ptr, size_t *actual_len);
static htri_t H5C__epoch_marker_verify_chksum(const void *image_ptr, size_t len, void *udata_ptr);
static void *H5C__epoch_marker_deserialize(const void *image_ptr, size_t len, void *udata,
hbool_t *dirty_ptr);
static herr_t H5C__epoch_marker_image_len(const void *thing, size_t *image_len_ptr);
static herr_t H5C__epoch_marker_pre_serialize(H5F_t *f, void *thing, haddr_t addr, size_t len,
haddr_t *new_addr_ptr, size_t *new_len_ptr,
unsigned *flags_ptr);
static herr_t H5C__epoch_marker_serialize(const H5F_t *f, void *image_ptr, size_t len, void *thing);
static herr_t H5C__epoch_marker_notify(H5C_notify_action_t action, void *thing);
static herr_t H5C__epoch_marker_free_icr(void *thing);
static herr_t H5C__epoch_marker_fsf_size(const void H5_ATTR_UNUSED *thing,
hsize_t H5_ATTR_UNUSED *fsf_size_ptr);
/*********************/
/* Package Variables */
/*********************/
/*****************************/
/* Library Private Variables */
/*****************************/
/*******************/
/* Local Variables */
/*******************/
const H5AC_class_t H5AC_EPOCH_MARKER[1] = {{
/* id = */ H5AC_EPOCH_MARKER_ID,
/* name = */ "epoch marker",
/* mem_type = */ H5FD_MEM_DEFAULT, /* value doesn't matter */
/* flags = */ H5AC__CLASS_NO_FLAGS_SET,
/* get_initial_load_size = */ H5C__epoch_marker_get_initial_load_size,
/* get_final_load_size = */ H5C__epoch_marker_get_final_load_size,
/* verify_chksum = */ H5C__epoch_marker_verify_chksum,
/* deserialize = */ H5C__epoch_marker_deserialize,
/* image_len = */ H5C__epoch_marker_image_len,
/* pre_serialize = */ H5C__epoch_marker_pre_serialize,
/* serialize = */ H5C__epoch_marker_serialize,
/* notify = */ H5C__epoch_marker_notify,
/* free_icr = */ H5C__epoch_marker_free_icr,
/* fsf_size = */ H5C__epoch_marker_fsf_size,
}};
/***************************************************************************
* Class functions for H5C__EPOCH_MAKER_TYPE:
*
* None of these functions should ever be called, so there is no point in
* documenting them separately.
* JRM - 11/16/04
*
***************************************************************************/
static herr_t
H5C__epoch_marker_get_initial_load_size(void H5_ATTR_UNUSED *udata_ptr, size_t H5_ATTR_UNUSED *image_len_ptr)
{
FUNC_ENTER_STATIC_NOERR /* Yes, even though this pushes an error on the stack */
HERROR(H5E_CACHE, H5E_SYSTEM, "called unreachable fcn.");
FUNC_LEAVE_NOAPI(FAIL)
} /* end H5C__epoch_marker_get_initial_load_size() */
static herr_t
H5C__epoch_marker_get_final_load_size(const void H5_ATTR_UNUSED *image_ptr, size_t H5_ATTR_UNUSED image_len,
void H5_ATTR_UNUSED *udata_ptr, size_t H5_ATTR_UNUSED *actual_len)
{
FUNC_ENTER_STATIC_NOERR /* Yes, even though this pushes an error on the stack */
HERROR(H5E_CACHE, H5E_SYSTEM, "called unreachable fcn.");
FUNC_LEAVE_NOAPI(FAIL)
} /* end H5C__epoch_marker_final_get_load_size() */
static htri_t
H5C__epoch_marker_verify_chksum(const void H5_ATTR_UNUSED *image_ptr, size_t H5_ATTR_UNUSED len,
void H5_ATTR_UNUSED *udata_ptr)
{
FUNC_ENTER_STATIC_NOERR /* Yes, even though this pushes an error on the stack */
HERROR(H5E_CACHE, H5E_SYSTEM, "called unreachable fcn.");
FUNC_LEAVE_NOAPI(FALSE)
} /* end H5C__epoch_marker_verify_chksum() */
static void *
H5C__epoch_marker_deserialize(const void H5_ATTR_UNUSED *image_ptr, size_t H5_ATTR_UNUSED len,
void H5_ATTR_UNUSED *udata, hbool_t H5_ATTR_UNUSED *dirty_ptr)
{
FUNC_ENTER_STATIC_NOERR /* Yes, even though this pushes an error on the stack */
HERROR(H5E_CACHE, H5E_SYSTEM, "called unreachable fcn.");
FUNC_LEAVE_NOAPI(NULL)
} /* end H5C__epoch_marker_deserialize() */
static herr_t
H5C__epoch_marker_image_len(const void H5_ATTR_UNUSED *thing, size_t H5_ATTR_UNUSED *image_len_ptr)
{
FUNC_ENTER_STATIC_NOERR /* Yes, even though this pushes an error on the stack */
HERROR(H5E_CACHE, H5E_SYSTEM, "called unreachable fcn.");
FUNC_LEAVE_NOAPI(FAIL)
} /* end H5C__epoch_marker_image_len() */
static herr_t
H5C__epoch_marker_pre_serialize(H5F_t H5_ATTR_UNUSED *f, void H5_ATTR_UNUSED *thing,
haddr_t H5_ATTR_UNUSED addr, size_t H5_ATTR_UNUSED len,
haddr_t H5_ATTR_UNUSED *new_addr_ptr, size_t H5_ATTR_UNUSED *new_len_ptr,
unsigned H5_ATTR_UNUSED *flags_ptr)
{
FUNC_ENTER_STATIC_NOERR /* Yes, even though this pushes an error on the stack */
HERROR(H5E_CACHE, H5E_SYSTEM, "called unreachable fcn.");
FUNC_LEAVE_NOAPI(FAIL)
} /* end H5C__epoch_marker_pre_serialize() */
static herr_t
H5C__epoch_marker_serialize(const H5F_t H5_ATTR_UNUSED *f, void H5_ATTR_UNUSED *image_ptr,
size_t H5_ATTR_UNUSED len, void H5_ATTR_UNUSED *thing)
{
FUNC_ENTER_STATIC_NOERR /* Yes, even though this pushes an error on the stack */
HERROR(H5E_CACHE, H5E_SYSTEM, "called unreachable fcn.");
FUNC_LEAVE_NOAPI(FAIL)
} /* end H5C__epoch_marker_serialize() */
static herr_t
H5C__epoch_marker_notify(H5C_notify_action_t H5_ATTR_UNUSED action, void H5_ATTR_UNUSED *thing)
{
FUNC_ENTER_STATIC_NOERR /* Yes, even though this pushes an error on the stack */
HERROR(H5E_CACHE, H5E_SYSTEM, "called unreachable fcn.");
FUNC_LEAVE_NOAPI(FAIL)
} /* end H5C__epoch_marker_notify() */
static herr_t
H5C__epoch_marker_free_icr(void H5_ATTR_UNUSED *thing)
{
FUNC_ENTER_STATIC_NOERR /* Yes, even though this pushes an error on the stack */
HERROR(H5E_CACHE, H5E_SYSTEM, "called unreachable fcn.");
FUNC_LEAVE_NOAPI(FAIL)
} /* end H5C__epoch_marker_free_icr() */
static herr_t
H5C__epoch_marker_fsf_size(const void H5_ATTR_UNUSED *thing, hsize_t H5_ATTR_UNUSED *fsf_size_ptr)
{
FUNC_ENTER_STATIC_NOERR /* Yes, even though this pushes an error on the stack */
HERROR(H5E_CACHE, H5E_SYSTEM, "called unreachable fcn.");
FUNC_LEAVE_NOAPI(FAIL)
} /* end H5C__epoch_marker_fsf_size() */
|
