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
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
|
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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 files COPYING and Copyright.html. COPYING can be found at the root *
* of the source code distribution tree; Copyright.html can be found at the *
* root level of an installed copy of the electronic HDF5 document set and *
* is linked from the top-level documents page. It can also be found at *
* http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*-------------------------------------------------------------------------
*
* Created: H5ACprivate.h
* Jul 9 1997
* Robb Matzke <matzke@llnl.gov>
*
* Purpose: Constants and typedefs available to the rest of the
* library.
*
* Modifications: JRM - 6/4/04
* Complete re-write for a new caching algorithm
* located in H5C.c
*
*-------------------------------------------------------------------------
*/
#ifndef _H5ACprivate_H
#define _H5ACprivate_H
#include "H5ACpublic.h" /*public prototypes */
/* Pivate headers needed by this header */
#include "H5private.h" /* Generic Functions */
#include "H5Fprivate.h" /* File access */
#include "H5Cprivate.h" /* cache */
#ifdef H5_METADATA_TRACE_FILE
#define H5AC__TRACE_FILE_ENABLED 1
#else /* H5_METADATA_TRACE_FILE */
#define H5AC__TRACE_FILE_ENABLED 0
#endif /* H5_METADATA_TRACE_FILE */
/* Types of metadata objects cached */
typedef enum {
H5AC_BT_ID = 0, /*B-tree nodes */
H5AC_SNODE_ID, /*symbol table nodes */
H5AC_LHEAP_PRFX_ID, /*local heap prefix */
H5AC_LHEAP_DBLK_ID, /*local heap data block */
H5AC_GHEAP_ID, /*global heap */
H5AC_OHDR_ID, /*object header */
H5AC_BT2_HDR_ID, /*v2 B-tree header */
H5AC_BT2_INT_ID, /*v2 B-tree internal node */
H5AC_BT2_LEAF_ID, /*v2 B-tree leaf node */
H5AC_FHEAP_HDR_ID, /*fractal heap header */
H5AC_FHEAP_DBLOCK_ID, /*fractal heap direct block */
H5AC_FHEAP_IBLOCK_ID, /*fractal heap indirect block */
H5AC_FSPACE_HDR_ID, /*free space header */
H5AC_FSPACE_SINFO_ID,/*free space sections */
H5AC_SOHM_TABLE_ID, /*shared object header message master table */
H5AC_SOHM_LIST_ID, /*shared message index stored as a list */
H5AC_SUPERBLOCK_ID, /* file superblock */
H5AC_TEST_ID, /*test entry -- not used for actual files */
H5AC_NTYPES /* Number of types, must be last */
} H5AC_type_t;
/* H5AC_DUMP_STATS_ON_CLOSE should always be FALSE when
* H5C_COLLECT_CACHE_STATS is FALSE.
*
* When H5C_COLLECT_CACHE_STATS is TRUE, H5AC_DUMP_STATS_ON_CLOSE must
* be FALSE for "make check" to succeed, but may be set to TRUE at other
* times for debugging purposes.
*
* Hence the following, somewhat odd set of #defines.
*/
#if H5C_COLLECT_CACHE_STATS
#define H5AC_DUMP_STATS_ON_CLOSE 0
#else /* H5C_COLLECT_CACHE_STATS */
#define H5AC_DUMP_STATS_ON_CLOSE 0
#endif /* H5C_COLLECT_CACHE_STATS */
/* Default max metadata cache size and min clean size are give here.
* At present, these are the same as those given in H5Cprivate.h.
*/
#define H5AC__DEFAULT_MAX_CACHE_SIZE H5C__DEFAULT_MAX_CACHE_SIZE
#define H5AC__DEFAULT_MIN_CLEAN_SIZE H5C__DEFAULT_MIN_CLEAN_SIZE
/*
* Class methods pertaining to caching. Each type of cached object will
* have a constant variable with permanent life-span that describes how
* to cache the object. That variable will be of type H5AC_class_t and
* have the following required fields...
*
* LOAD: Loads an object from disk to memory. The function
* should allocate some data structure and return it.
*
* FLUSH: Writes some data structure back to disk. It would be
* wise for the data structure to include dirty flags to
* indicate whether it really needs to be written. This
* function is also responsible for freeing memory allocated
* by the LOAD method if the DEST argument is non-zero (by
* calling the DEST method).
*
* DEST: Just frees memory allocated by the LOAD method.
*
* CLEAR: Just marks object as non-dirty.
*
* SIZE: Report the size (on disk) of the specified cache object.
* Note that the space allocated on disk may not be contiguous.
*/
#define H5AC_CALLBACK__NO_FLAGS_SET H5C_CALLBACK__NO_FLAGS_SET
#define H5AC_CALLBACK__SIZE_CHANGED_FLAG H5C_CALLBACK__SIZE_CHANGED_FLAG
#define H5AC_CALLBACK__RENAMED_FLAG H5C_CALLBACK__RENAMED_FLAG
typedef H5C_load_func_t H5AC_load_func_t;
typedef H5C_flush_func_t H5AC_flush_func_t;
typedef H5C_dest_func_t H5AC_dest_func_t;
typedef H5C_clear_func_t H5AC_clear_func_t;
typedef H5C_size_func_t H5AC_size_func_t;
typedef H5C_class_t H5AC_class_t;
/* The H5AC_NSLOTS #define is now obsolete, as the metadata cache no longer
* uses slots. However I am leaving it in for now to avoid modifying the
* interface between the metadata cache and the rest of HDF. It should
* be removed when we get to dealing with the size_hint parameter in
* H5AC_create().
* JRM - 5/20/04
*
* Old comment on H5AC_NSLOTS follows:
*
* A cache has a certain number of entries. Objects are mapped into a
* cache entry by hashing the object's file address. Each file has its
* own cache, an array of slots.
*/
#define H5AC_NSLOTS 10330 /* The library "likes" this number... */
typedef H5C_cache_entry_t H5AC_info_t;
/*===----------------------------------------------------------------------===
* Protect Types
*===----------------------------------------------------------------------===
*
* These are for the wrapper functions to H5AC_protect. They specify what
* type of operation you're planning on doing to the metadata. The
* Flexible Parallel HDF5 locking can then act accordingly.
*/
typedef enum H5AC_protect_t {
H5AC_WRITE, /* Protect object for writing */
H5AC_READ /* Protect object for reading */
} H5AC_protect_t;
/* Typedef for metadata cache (defined in H5Cpkg.h) */
typedef H5C_t H5AC_t;
/* Metadata specific properties for FAPL */
/* (Only used for parallel I/O) */
#ifdef H5_HAVE_PARALLEL
/* Definitions for "block before metadata write" property */
#define H5AC_BLOCK_BEFORE_META_WRITE_NAME "H5AC_block_before_meta_write"
#define H5AC_BLOCK_BEFORE_META_WRITE_SIZE sizeof(unsigned)
#define H5AC_BLOCK_BEFORE_META_WRITE_DEF 0
/* Definitions for "library internal" property */
#define H5AC_LIBRARY_INTERNAL_NAME "H5AC_library_internal"
#define H5AC_LIBRARY_INTERNAL_SIZE sizeof(unsigned)
#define H5AC_LIBRARY_INTERNAL_DEF 0
#endif /* H5_HAVE_PARALLEL */
/* Dataset transfer property list for flush calls */
/* (Collective set, "block before metadata write" set and "library internal" set) */
/* (Global variable declaration, definition is in H5AC.c) */
extern hid_t H5AC_dxpl_id;
/* Dataset transfer property list for independent metadata I/O calls */
/* (just "library internal" set - i.e. independent transfer mode) */
/* (Global variable declaration, definition is in H5AC.c) */
extern hid_t H5AC_ind_dxpl_id;
/* Default cache configuration. */
#ifdef H5_HAVE_PARALLEL
#define H5AC__DEFAULT_CACHE_CONFIG \
{ \
/* int version = */ H5C__CURR_AUTO_SIZE_CTL_VER, \
/* hbool_t rpt_fcn_enabled = */ FALSE, \
/* hbool_t open_trace_file = */ FALSE, \
/* hbool_t close_trace_file = */ FALSE, \
/* char trace_file_name[] = */ "", \
/* hbool_t evictions_enabled = */ TRUE, \
/* hbool_t set_initial_size = */ TRUE, \
/* size_t initial_size = */ ( 2 * 1024 * 1024), \
/* double min_clean_fraction = */ 0.3, \
/* size_t max_size = */ (32 * 1024 * 1024), \
/* size_t min_size = */ ( 1 * 1024 * 1024), \
/* long int epoch_length = */ 50000, \
/* enum H5C_cache_incr_mode incr_mode = */ H5C_incr__threshold, \
/* double lower_hr_threshold = */ 0.9, \
/* double increment = */ 2.0, \
/* hbool_t apply_max_increment = */ TRUE, \
/* size_t max_increment = */ (4 * 1024 * 1024), \
/* enum H5C_cache_flash_incr_mode */ \
/* flash_incr_mode = */ H5C_flash_incr__add_space, \
/* double flash_multiple = */ 1.0, \
/* double flash_threshold = */ 0.25, \
/* enum H5C_cache_decr_mode decr_mode = */ H5C_decr__age_out_with_threshold,\
/* double upper_hr_threshold = */ 0.999, \
/* double decrement = */ 0.9, \
/* hbool_t apply_max_decrement = */ TRUE, \
/* size_t max_decrement = */ (1 * 1024 * 1024), \
/* int epochs_before_eviction = */ 3, \
/* hbool_t apply_empty_reserve = */ TRUE, \
/* double empty_reserve = */ 0.1, \
/* int dirty_bytes_threshold = */ (256 * 1024) \
}
#else /* H5_HAVE_PARALLEL */
#define H5AC__DEFAULT_CACHE_CONFIG \
{ \
/* int version = */ H5C__CURR_AUTO_SIZE_CTL_VER, \
/* hbool_t rpt_fcn_enabled = */ FALSE, \
/* hbool_t open_trace_file = */ FALSE, \
/* hbool_t close_trace_file = */ FALSE, \
/* char trace_file_name[] = */ "", \
/* hbool_t evictions_enabled = */ TRUE, \
/* hbool_t set_initial_size = */ TRUE, \
/* size_t initial_size = */ ( 2 * 1024 * 1024), \
/* double min_clean_fraction = */ 0.01, \
/* size_t max_size = */ (32 * 1024 * 1024), \
/* size_t min_size = */ ( 1 * 1024 * 1024), \
/* long int epoch_length = */ 50000, \
/* enum H5C_cache_incr_mode incr_mode = */ H5C_incr__threshold, \
/* double lower_hr_threshold = */ 0.9, \
/* double increment = */ 2.0, \
/* hbool_t apply_max_increment = */ TRUE, \
/* size_t max_increment = */ (4 * 1024 * 1024), \
/* enum H5C_cache_flash_incr_mode */ \
/* flash_incr_mode = */ H5C_flash_incr__add_space, \
/* double flash_multiple = */ 1.4, \
/* double flash_threshold = */ 0.25, \
/* enum H5C_cache_decr_mode decr_mode = */ H5C_decr__age_out_with_threshold,\
/* double upper_hr_threshold = */ 0.999, \
/* double decrement = */ 0.9, \
/* hbool_t apply_max_decrement = */ TRUE, \
/* size_t max_decrement = */ (1 * 1024 * 1024), \
/* int epochs_before_eviction = */ 3, \
/* hbool_t apply_empty_reserve = */ TRUE, \
/* double empty_reserve = */ 0.1, \
/* int dirty_bytes_threshold = */ (256 * 1024) \
}
#endif /* H5_HAVE_PARALLEL */
/*
* Library prototypes.
*/
/* #defines of flags used in the flags parameters in some of the
* following function calls. Note that they are just copies of
* the equivalent flags from H5Cprivate.h.
*/
#define H5AC__NO_FLAGS_SET H5C__NO_FLAGS_SET
#define H5AC__SET_FLUSH_MARKER_FLAG H5C__SET_FLUSH_MARKER_FLAG
#define H5AC__DELETED_FLAG H5C__DELETED_FLAG
#define H5AC__DIRTIED_FLAG H5C__DIRTIED_FLAG
#define H5AC__SIZE_CHANGED_FLAG H5C__SIZE_CHANGED_FLAG
#define H5AC__PIN_ENTRY_FLAG H5C__PIN_ENTRY_FLAG
#define H5AC__UNPIN_ENTRY_FLAG H5C__UNPIN_ENTRY_FLAG
#define H5AC__FLUSH_INVALIDATE_FLAG H5C__FLUSH_INVALIDATE_FLAG
#define H5AC__FLUSH_CLEAR_ONLY_FLAG H5C__FLUSH_CLEAR_ONLY_FLAG
#define H5AC__FLUSH_MARKED_ENTRIES_FLAG H5C__FLUSH_MARKED_ENTRIES_FLAG
#define H5AC__FLUSH_IGNORE_PROTECTED_FLAG H5C__FLUSH_IGNORE_PROTECTED_FLAG
#define H5AC__FREE_FILE_SPACE_FLAG H5C__FREE_FILE_SPACE_FLAG
#define H5AC__TAKE_OWNERSHIP_FLAG H5C__TAKE_OWNERSHIP_FLAG
/* #defines of flags used to report entry status in the
* H5AC_get_entry_status() call.
*/
#define H5AC_ES__IN_CACHE 0x0001
#define H5AC_ES__IS_DIRTY 0x0002
#define H5AC_ES__IS_PROTECTED 0x0004
#define H5AC_ES__IS_PINNED 0x0008
/* external function declarations: */
H5_DLL herr_t H5AC_init(void);
H5_DLL herr_t H5AC_create(const H5F_t *f, H5AC_cache_config_t *config_ptr);
H5_DLL herr_t H5AC_get_entry_status(const H5F_t * f, haddr_t addr,
unsigned * status_ptr);
H5_DLL herr_t H5AC_set(H5F_t *f, hid_t dxpl_id, const H5AC_class_t *type,
haddr_t addr, void *thing, unsigned int flags);
H5_DLL herr_t H5AC_pin_protected_entry(void *thing);
H5_DLL void * H5AC_protect(H5F_t *f, hid_t dxpl_id, const H5AC_class_t *type,
haddr_t addr, const void *udata1, void *udata2,
H5AC_protect_t rw);
H5_DLL herr_t H5AC_resize_pinned_entry(void *thing, size_t new_size);
H5_DLL herr_t H5AC_unpin_entry(void *thing);
H5_DLL herr_t H5AC_unprotect(H5F_t *f, hid_t dxpl_id,
const H5AC_class_t *type, haddr_t addr,
void *thing, unsigned flags);
H5_DLL herr_t H5AC_flush(H5F_t *f, hid_t dxpl_id);
H5_DLL herr_t H5AC_mark_pinned_entry_dirty(void *thing, hbool_t size_changed,
size_t new_size);
H5_DLL herr_t H5AC_mark_pinned_or_protected_entry_dirty(void *thing);
H5_DLL herr_t H5AC_rename(H5F_t *f, const H5AC_class_t *type,
haddr_t old_addr, haddr_t new_addr);
H5_DLL herr_t H5AC_dest(H5F_t *f, hid_t dxpl_id);
H5_DLL herr_t H5AC_expunge_entry(H5F_t *f, hid_t dxpl_id,
const H5AC_class_t *type, haddr_t addr,
unsigned flags);
H5_DLL herr_t H5AC_set_write_done_callback(H5C_t * cache_ptr,
void (* write_done)(void));
H5_DLL herr_t H5AC_stats(const H5F_t *f);
H5_DLL herr_t H5AC_get_cache_auto_resize_config(const H5AC_t * cache_ptr,
H5AC_cache_config_t *config_ptr);
H5_DLL herr_t H5AC_get_cache_size(H5AC_t * cache_ptr,
size_t * max_size_ptr,
size_t * min_clean_size_ptr,
size_t * cur_size_ptr,
int32_t * cur_num_entries_ptr);
H5_DLL herr_t H5AC_get_cache_hit_rate(H5AC_t * cache_ptr,
double * hit_rate_ptr);
H5_DLL herr_t H5AC_reset_cache_hit_rate_stats(H5AC_t * cache_ptr);
H5_DLL herr_t H5AC_set_cache_auto_resize_config(H5AC_t *cache_ptr,
H5AC_cache_config_t *config_ptr);
H5_DLL herr_t H5AC_validate_config(H5AC_cache_config_t * config_ptr);
H5_DLL herr_t H5AC_close_trace_file( H5AC_t * cache_ptr);
H5_DLL herr_t H5AC_open_trace_file(H5AC_t * cache_ptr,
const char * trace_file_name);
#endif /* !_H5ACprivate_H */
|
