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
|
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* Programmer: Quincey Koziol <koziol@ncsa.uiuc.edu>
* Monday, January 31, 2005
*
* Purpose: This file contains declarations which are visible only within
* the H5B2 package. Source files outside the H5B2 package should
* include H5B2private.h instead.
*/
#ifndef H5B2_PACKAGE
#error "Do not include this file outside the H5B2 package!"
#endif
#ifndef _H5B2pkg_H
#define _H5B2pkg_H
/* Get package's private header */
#include "H5B2private.h"
/* Other private headers needed by this file */
#include "H5ACprivate.h" /* Metadata cache */
#include "H5FLprivate.h" /* Free Lists */
#include "H5RCprivate.h" /* Reference counted object functions */
/**************************/
/* Package Private Macros */
/**************************/
/* Size of signature information (on disk) */
#define H5B2_SIZEOF_MAGIC 4
/* B-tree signatures */
#define H5B2_HDR_MAGIC "BTHD" /* Header */
#define H5B2_INT_MAGIC "BTND" /* Internal node */
#define H5B2_LEAF_MAGIC "BTLF" /* Leaf node */
/* Size of storage for number of records per node (on disk) */
#define H5B2_SIZEOF_RECORDS_PER_NODE 2
/* Size of a "node pointer" (on disk) */
#define H5B2_NODE_POINTER_SIZE(f) (H5F_SIZEOF_ADDR(f)+H5B2_SIZEOF_RECORDS_PER_NODE+H5F_SIZEOF_SIZE(f))
/* Size of the B-tree header on disk */
#define H5B2_HEADER_SIZE(f) ( \
4 /* Signature */ \
+ 1 /* Version */ \
+ 1 /* Tree type */ \
+ 4 /* Node size, in bytes */ \
+ 2 /* Key size, in bytes */ \
+ 2 /* Depth of tree */ \
+ 2 /* Split % of full (as integer, ie. "98" means 98%) */ \
+ 2 /* Merge % of full (as integer, ie. "98" means 98%) */ \
+ H5B2_NODE_POINTER_SIZE(f)) /* Node pointer to root node in tree */
/* Macro to retrieve pointer to i'th native record for native record buffer */
#define H5B2_NAT_NREC(b,shared,idx) (b+(shared)->nat_off[(idx)])
/* Macro to retrieve pointer to i'th native record for internal node */
#define H5B2_INT_NREC(i,shared,idx) ((i)->int_native+(shared)->nat_off[(idx)])
/* Macro to retrieve pointer to i'th native record for leaf node */
#define H5B2_LEAF_NREC(l,shared,idx) ((l)->leaf_native+(shared)->nat_off[(idx)])
/****************************/
/* Package Private Typedefs */
/****************************/
/* A "node pointer" to another B-tree node */
typedef struct {
haddr_t addr; /* Address of other node */
unsigned node_nrec; /* Number of records used in node pointed to */
hsize_t all_nrec; /* Number of records in node pointed to and all it's children */
} H5B2_node_ptr_t;
/* Each B-tree has certain information that can be shared across all
* the instances of nodes in that B-tree.
*/
typedef struct H5B2_shared_t {
/* Shared internal data structures */
const H5B2_class_t *type; /* Type of tree */
uint8_t *page; /* Disk page */
H5FL_fac_head_t *int_fac; /* Factory for internal node native record blocks */
H5FL_fac_head_t *leaf_fac; /* Factory for leaf node native record blocks */
H5FL_fac_head_t *node_ptr_fac; /* Factory for internal node node pointer blocks */
size_t *nat_off; /* Array of offsets of native records */
/* Information set by user */
unsigned split_percent; /* Percent full at which to split the node, when inserting */
unsigned merge_percent; /* Percent full at which to merge the node, when deleting */
size_t node_size; /* Size of all nodes, in bytes */
size_t rrec_size; /* Size of "raw" (on disk) record, in bytes */
/* Derived information from user's information */
size_t internal_nrec; /* Number of records which fit into an internal node */
size_t split_int_nrec; /* Number of records to split an internal node at */
size_t merge_int_nrec; /* Number of records to merge an internal node at */
size_t leaf_nrec; /* Number of records which fit into a leaf node */
size_t split_leaf_nrec; /* Number of records to split a leaf node at */
size_t merge_leaf_nrec; /* Number of records to merge a leaf node at */
} H5B2_shared_t;
/* The B-tree information */
typedef struct H5B2_t {
/* Information for H5AC cache functions, _must_ be first field in structure */
H5AC_info_t cache_info;
/* Internal B-tree information */
unsigned depth; /* B-tree's overall depth */
H5B2_node_ptr_t root; /* Node pointer to root node in B-tree */
H5RC_t *shared; /* Ref-counted shared info */
} H5B2_t;
/* B-tree leaf node information */
typedef struct H5B2_leaf_t {
/* Information for H5AC cache functions, _must_ be first field in structure */
H5AC_info_t cache_info;
/* Internal B-tree information */
H5RC_t *shared; /* Ref-counted shared info */
uint8_t *leaf_native; /* Pointer to native records */
unsigned nrec; /* Number of records in node */
} H5B2_leaf_t;
/* B-tree internal node information */
typedef struct H5B2_internal_t {
/* Information for H5AC cache functions, _must_ be first field in structure */
H5AC_info_t cache_info;
/* Internal B-tree information */
H5RC_t *shared; /* Ref-counted shared info */
uint8_t *int_native; /* Pointer to native records */
H5B2_node_ptr_t *node_ptrs; /* Pointer to node pointers */
unsigned nrec; /* Number of records in node */
} H5B2_internal_t;
/*****************************/
/* Package Private Variables */
/*****************************/
/* H5B2 header inherits cache-like properties from H5AC */
H5_DLLVAR const H5AC_class_t H5AC_BT2_HDR[1];
/* H5B2 internal node inherits cache-like properties from H5AC */
H5_DLLVAR const H5AC_class_t H5AC_BT2_INT[1];
/* H5B2 leaf node inherits cache-like properties from H5AC */
H5_DLLVAR const H5AC_class_t H5AC_BT2_LEAF[1];
/* Declare a free list to manage the H5B2_t struct */
H5FL_EXTERN(H5B2_t);
/* Declare a free list to manage the H5B2_internal_t struct */
H5FL_EXTERN(H5B2_internal_t);
/* Declare a free list to manage the H5B2_leaf_t struct */
H5FL_EXTERN(H5B2_leaf_t);
/* Internal v2 B-tree testing class */
#ifdef H5B2_TESTING
H5_DLLVAR const H5B2_class_t H5B2_TEST[1];
#endif /* H5B2_TESTING */
/******************************/
/* Package Private Prototypes */
/******************************/
/* Routines for managing shared B-tree info */
H5_DLL herr_t H5B2_shared_init(H5F_t *f, H5B2_t *bt2, const H5B2_class_t *type,
size_t node_size, size_t rrec_size, unsigned split_percent, unsigned merge_percent);
/* Routines for allocating nodes */
H5_DLL herr_t H5B2_split_root(H5F_t *f, hid_t dxpl_id, H5B2_t *bt2,
unsigned *bt2_flags_ptr, H5RC_t *bt2_shared);
H5_DLL herr_t H5B2_create_leaf(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared,
H5B2_node_ptr_t *node_ptr);
/* Routines for inserting records */
H5_DLL herr_t H5B2_insert_internal(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared,
unsigned depth, unsigned *parent_cache_info_flags_ptr,
H5B2_node_ptr_t *curr_node_ptr, void *udata);
H5_DLL herr_t H5B2_insert_leaf(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared,
H5B2_node_ptr_t *curr_node_ptr, void *udata);
/* Routines for iterating over nodes/records */
H5_DLL herr_t H5B2_iterate_node(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared,
unsigned depth, const H5B2_node_ptr_t *curr_node, H5B2_operator_t op,
void *op_data);
/* Routines for locating records */
H5_DLL int H5B2_locate_record(const H5B2_class_t *type, unsigned nrec,
size_t *rec_off, const uint8_t *native, const void *udata, unsigned *idx);
H5_DLL herr_t H5B2_neighbor_internal(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared,
unsigned depth, H5B2_node_ptr_t *curr_node_ptr, void *neighbor_loc,
H5B2_compare_t comp, void *udata, H5B2_found_t op, void *op_data);
H5_DLL herr_t H5B2_neighbor_leaf(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared,
H5B2_node_ptr_t *curr_node_ptr, void *neighbor_loc,
H5B2_compare_t comp, void *udata, H5B2_found_t op, void *op_data);
/* Routines for removing records */
H5_DLL herr_t H5B2_remove_internal(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared,
hbool_t *depth_decreased, void *swap_loc, unsigned depth, H5AC_info_t *parent_cache_info,
hbool_t * parent_cache_info_dirtied_ptr, H5B2_node_ptr_t *curr_node_ptr, void *udata);
H5_DLL herr_t H5B2_remove_leaf(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared,
H5B2_node_ptr_t *curr_node_ptr, void *udata);
/* Routines for deleting nodes */
H5_DLL herr_t H5B2_delete_node(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared,
unsigned depth, const H5B2_node_ptr_t *curr_node);
/* Metadata cache callbacks */
H5_DLL herr_t H5B2_cache_hdr_dest(H5F_t *f, H5B2_t *b);
H5_DLL herr_t H5B2_cache_leaf_dest(H5F_t *f, H5B2_leaf_t *l);
H5_DLL herr_t H5B2_cache_internal_dest(H5F_t *f, H5B2_internal_t *i);
/* Debugging routines for dumping file structures */
H5_DLL herr_t H5B2_hdr_debug(H5F_t *f, hid_t dxpl_id, haddr_t addr,
FILE *stream, int indent, int fwidth, const H5B2_class_t *type);
H5_DLL herr_t H5B2_int_debug(H5F_t *f, hid_t dxpl_id, haddr_t addr,
FILE *stream, int indent, int fwidth, const H5B2_class_t *type,
haddr_t hdr_addr, unsigned nrec);
H5_DLL herr_t H5B2_leaf_debug(H5F_t *f, hid_t dxpl_id, haddr_t addr,
FILE *stream, int indent, int fwidth, const H5B2_class_t *type,
haddr_t hdr_addr, unsigned nrec);
/* Testing routines */
#ifdef H5B2_TESTING
H5_DLL herr_t H5B2_get_root_addr_test(H5F_t *f, hid_t dxpl_id,
const H5B2_class_t *type, haddr_t addr, haddr_t *root_addr);
#endif /* H5B2_TESTING */
#endif /* _H5B2pkg_H */
|
