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
|
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* Programmer: Quincey Koziol <koziol@hdfgroup.org>
* Tuesday, January 8, 2008
*
* Purpose: This file contains declarations which are visible only within
* the H5MF package. Source files outside the H5MF package should
* include H5MFprivate.h instead.
*/
#ifndef H5MF_PACKAGE
#error "Do not include this file outside the H5MF package!"
#endif
#ifndef _H5MFpkg_H
#define _H5MFpkg_H
/* Get package's private header */
#include "H5MFprivate.h"
/* Other private headers needed by this file */
#include "H5FSprivate.h" /* File free space */
/**************************/
/* Package Private Macros */
/**************************/
/* Define this to display information about file allocations */
/* #define H5MF_ALLOC_DEBUG */
/* Define this to display more information about file allocations */
/* #define H5MF_ALLOC_DEBUG_MORE */
/* Define this to display more information about block aggregator actions */
/* #define H5MF_AGGR_DEBUG */
/* Define this to dump free space tracker contents after they've been modified */
/* #define H5MF_ALLOC_DEBUG_DUMP */
/* Free space section types for file */
/* (values stored in free space data structures in file) */
#define H5MF_FSPACE_SECT_SIMPLE 0 /* Section is a range of actual bytes in file */
/****************************/
/* Package Private Typedefs */
/****************************/
/* File free space section info */
typedef struct H5MF_free_section_t {
H5FS_section_info_t sect_info; /* Free space section information (must be first in struct) */
#ifdef NOT_YET
union {
struct {
H5HF_indirect_t *parent; /* Indirect block parent for free section's direct block */
unsigned par_entry; /* Entry of free section's direct block in parent indirect block */
} single;
struct {
struct H5HF_free_section_t *under; /* Pointer to indirect block underlying row section */
unsigned row; /* Row for range of blocks */
unsigned col; /* Column for range of blocks */
unsigned num_entries; /* Number of entries covered */
/* Fields that aren't stored */
hbool_t checked_out; /* Flag to indicate that a row section is temporarily out of the free space manager */
} row;
struct {
/* Holds either a pointer to an indirect block (if its "live") or
* the block offset of it's indirect block (if its "serialized")
* (This allows the indirect block that the section is within to
* be compared with other sections, whether it's serialized
* or not)
*/
union {
H5HF_indirect_t *iblock; /* Indirect block for free section */
hsize_t iblock_off; /* Indirect block offset in "heap space" */
} u;
unsigned row; /* Row for range of blocks */
unsigned col; /* Column for range of blocks */
unsigned num_entries; /* Number of entries covered */
/* Fields that aren't stored */
struct H5HF_free_section_t *parent; /* Pointer to "parent" indirect section */
unsigned par_entry; /* Entry within parent indirect section */
hsize_t span_size; /* Size of space tracked, in "heap space" */
unsigned iblock_entries; /* Number of entries in indirect block where section is located */
unsigned rc; /* Reference count of outstanding row & child indirect sections */
unsigned dir_nrows; /* Number of direct rows in section */
struct H5HF_free_section_t **dir_rows; /* Array of pointers to outstanding row sections */
unsigned indir_nents; /* Number of indirect entries in section */
struct H5HF_free_section_t **indir_ents; /* Array of pointers to outstanding child indirect sections */
} indirect;
} u;
#endif /* NOT_YET */
} H5MF_free_section_t;
/* Type of "container shrink" operation to perform */
typedef enum {
H5MF_SHRINK_EOA, /* Section should shrink the EOA value */
H5MF_SHRINK_AGGR_ABSORB_SECT, /* Section should merge into the aggregator block */
H5MF_SHRINK_SECT_ABSORB_AGGR /* Aggregator block should merge into the section */
} H5MF_shrink_type_t;
/* User data for free space manager section callbacks */
typedef struct H5MF_sect_ud_t {
/* Down */
H5F_t *f; /* Pointer to file to operate on */
hid_t dxpl_id; /* DXPL for VFD operations */
H5FD_mem_t alloc_type; /* Type of memory being allocated */
hbool_t allow_sect_absorb; /* Whether sections are allowed to absorb a block aggregator */
/* Up */
H5MF_shrink_type_t shrink; /* Type of shrink operation to perform */
H5F_blk_aggr_t *aggr; /* Aggregator block to operate on */
} H5MF_sect_ud_t;
/*****************************/
/* Package Private Variables */
/*****************************/
/* H5MF single section inherits serializable properties from H5FS_section_class_t */
H5_DLLVAR H5FS_section_class_t H5MF_FSPACE_SECT_CLS_SIMPLE[1];
/******************************/
/* Package Private Prototypes */
/******************************/
/* Allocator routines */
H5_DLL herr_t H5MF_alloc_start(H5F_t *f, hid_t dxpl_id, H5FD_mem_t type,
hbool_t may_create);
H5_DLL herr_t H5MF_sects_dump(H5F_t *f, hid_t dxpl_id, FILE *stream);
/* 'simple' section routines */
H5_DLL H5MF_free_section_t *H5MF_sect_simple_new(haddr_t sect_off,
hsize_t sect_size);
H5_DLL htri_t H5MF_sect_simple_can_shrink(const H5FS_section_info_t *_sect,
void *udata);
H5_DLL herr_t H5MF_sect_simple_shrink(H5FS_section_info_t **_sect,
void *udata);
H5_DLL herr_t H5MF_sect_simple_free(H5FS_section_info_t *sect);
/* Block aggregator routines */
H5_DLL haddr_t H5MF_aggr_alloc(H5F_t *f, hid_t dxpl_id, H5F_blk_aggr_t *aggr,
H5F_blk_aggr_t *other_aggr, H5FD_mem_t type, hsize_t size);
H5_DLL htri_t H5MF_aggr_try_extend(const H5F_t *f, H5F_blk_aggr_t *aggr,
H5FD_mem_t type, haddr_t abs_blk_end, hsize_t extra_requested);
H5_DLL htri_t H5MF_aggr_can_absorb(const H5F_t *f, const H5F_blk_aggr_t *aggr,
const H5MF_free_section_t *sect, H5MF_shrink_type_t *shrink);
H5_DLL herr_t H5MF_aggr_absorb(const H5F_t *f, H5F_blk_aggr_t *aggr,
H5MF_free_section_t *sect, hbool_t allow_sect_absorb);
H5_DLL herr_t H5MF_aggr_query(const H5F_t *f, const H5F_blk_aggr_t *aggr,
haddr_t *addr, hsize_t *size);
/* Testing routines */
#ifdef H5MF_TESTING
#endif /* H5MF_TESTING */
#endif /* _H5MFpkg_H */
|
