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
|
/*
* Copyright (C) 2000-2002 NCSA
* All rights reserved.
*
* Programmer: Quincey Koziol <koziol@ncsa.uiuc.edu>
* Thursday, September 28, 2000
*
* Purpose: This file contains declarations which are visible only within
* the H5F package. Source files outside the H5F package should
* include H5Fprivate.h instead.
*/
#ifndef H5F_PACKAGE
#error "Do not include this file outside the H5F package!"
#endif
#ifndef _H5Fpkg_H
#define _H5Fpkg_H
#include "H5Fprivate.h"
/* This is a near top-level header! Try not to include much! */
#include "H5private.h"
/*
* Feature: Define this constant to be non-zero if you want to enable code
* that minimizes the number of calls to lseek(). This has a huge
* performance benefit on some systems. Set this constant to zero
* on the compiler command line to disable that optimization.
*/
#ifndef H5F_OPT_SEEK
# define H5F_OPT_SEEK 1
#endif
/*
* Feature: Define this constant on the compiler command-line if you want to
* see some debugging messages on the debug stream.
*/
#ifdef NDEBUG
# undef H5F_DEBUG
#endif
/* Maximum size of boot-block buffer */
#define H5F_BOOTBLOCK_SIZE 1024
/* Define the HDF5 file signature */
#define H5F_SIGNATURE "\211HDF\r\n\032\n"
#define H5F_SIGNATURE_LEN 8
/*
* Private file open flags.
*/
#define H5F_ACC_PUBLIC_FLAGS 0x00ffu
/*
* Macros that check for overflows. These are somewhat dangerous to fiddle
* with.
*/
#if (H5_SIZEOF_SIZE_T >= H5_SIZEOF_OFF_T)
# define H5F_OVERFLOW_SIZET2OFFT(X) \
((size_t)(X)>=(size_t)((size_t)1<<(8*sizeof(off_t)-1)))
#else
# define H5F_OVERFLOW_SIZET2OFFT(X) 0
#endif
#if (H5_SIZEOF_HSIZE_T >= H5_SIZEOF_OFF_T)
# define H5F_OVERFLOW_HSIZET2OFFT(X) \
((hsize_t)(X)>=(hsize_t)((hsize_t)1<<(8*sizeof(off_t)-1)))
#else
# define H5F_OVERFLOW_SIZET2OFFT(X) 0
#endif
/* The raw data chunk cache */
typedef struct H5F_rdcc_t {
unsigned ninits; /* Number of chunk creations */
unsigned nhits; /* Number of cache hits */
unsigned nmisses;/* Number of cache misses */
unsigned nflushes;/* Number of cache flushes */
size_t nbytes; /* Current cached raw data in bytes */
size_t nslots; /* Number of chunk slots allocated */
struct H5F_rdcc_ent_t *head; /* Head of doubly linked list */
struct H5F_rdcc_ent_t *tail; /* Tail of doubly linked list */
int nused; /* Number of chunk slots in use */
struct H5F_rdcc_ent_t **slot; /* Chunk slots, each points to a chunk*/
} H5F_rdcc_t;
/*
* Define the structure to store the file information for HDF5 files. One of
* these structures is allocated per file, not per H5Fopen(). That is, set of
* H5F_t structs can all point to the same H5F_file_t struct. The `nrefs'
* count in this struct indicates the number of H5F_t structs which are
* pointing to this struct.
*/
typedef struct H5F_file_t {
unsigned flags; /* Access Permissions for file */
H5FD_t *lf; /* Lower level file handle for I/O */
unsigned nrefs; /* Ref count for times file is opened */
uint32_t consist_flags; /* File Consistency Flags */
haddr_t boot_addr; /* Absolute address of boot block */
haddr_t base_addr; /* Absolute base address for rel.addrs. */
haddr_t freespace_addr; /* Relative address of free-space info */
haddr_t driver_addr; /* File driver information block address*/
struct H5AC_t *cache; /* The object cache */
hid_t fcpl_id; /* File creation property list ID */
int mdc_nelmts; /* Size of meta data cache (elements) */
size_t rdcc_nelmts; /* Size of raw data chunk cache (elmts) */
size_t rdcc_nbytes; /* Size of raw data chunk cache (bytes) */
double rdcc_w0; /* Preempt read chunks first? [0.0..1.0]*/
hsize_t threshold; /* Threshold for alignment */
hsize_t alignment; /* Alignment */
unsigned gc_ref; /* Garbage-collect references? */
struct H5G_t *root_grp; /* Open root group */
int ncwfs; /* Num entries on cwfs list */
struct H5HG_heap_t **cwfs; /* Global heap cache */
/* Data Sieve Buffering fields */
unsigned char *sieve_buf; /* Buffer to hold data sieve buffer */
haddr_t sieve_loc; /* File location (offset) of the data sieve buffer */
size_t sieve_size; /* Size of the data sieve buffer used (in bytes) */
size_t sieve_buf_size; /* Size of the data sieve buffer allocated (in bytes) */
unsigned sieve_dirty; /* Flag to indicate that the data sieve buffer is dirty */
H5F_rdcc_t rdcc; /* Raw data chunk cache */
H5F_close_degree_t fc_degree; /* File close behavior degree */
} H5F_file_t;
/* A record of the mount table */
typedef struct H5F_mount_t {
struct H5G_t *group; /* Mount point group held open */
struct H5F_t *file; /* File mounted at that point */
} H5F_mount_t;
/*
* The mount table describes what files are attached to (mounted on) the file
* to which this table belongs.
*/
typedef struct H5F_mtab_t {
struct H5F_t *parent;/* Parent file */
unsigned nmounts;/* Number of children which are mounted */
unsigned nalloc; /* Number of mount slots allocated */
H5F_mount_t *child; /* An array of mount records */
} H5F_mtab_t;
/*
* This is the top-level file descriptor. One of these structures is
* allocated every time H5Fopen() is called although they may contain pointers
* to shared H5F_file_t structs. The reference count (nrefs) indicates the
* number of times the file has been opened (the application can only open a
* file once explicitly, but the library can open the file a second time to
* indicate that the file is mounted on some other file).
*/
struct H5F_t {
unsigned nrefs; /* Reference count */
unsigned intent; /* The flags passed to H5F_open()*/
char *name; /* Name used to open file */
H5F_file_t *shared; /* The shared file info */
unsigned nopen_objs; /* Number of open object headers*/
hid_t closing; /* H5I_FILE_CLOSING ID or zero */
H5F_mtab_t mtab; /* File mount table */
};
#ifdef H5_HAVE_PARALLEL
__DLLVAR__ hbool_t H5_mpi_1_metawrite_g;
#endif /* H5_HAVE_PARALLEL */
/* Private functions, not part of the publicly documented API */
__DLL__ void H5F_encode_length_unusual(const H5F_t *f, uint8_t **p,
uint8_t *l);
__DLL__ H5F_t *H5F_open(const char *name, unsigned flags, hid_t fcpl_id,
hid_t fapl_id);
__DLL__ herr_t H5F_close(H5F_t *f);
__DLL__ herr_t H5F_close_all(void);
__DLL__ herr_t H5F_flush_all(hbool_t invalidate);
__DLL__ herr_t H5F_debug(H5F_t *f, haddr_t addr, FILE * stream,
int indent, int fwidth);
__DLL__ herr_t H5F_istore_debug(H5F_t *f, haddr_t addr, FILE * stream,
int indent, int fwidth, int ndims);
__DLL__ herr_t H5F_mountpoint(struct H5G_entry_t *find/*in,out*/);
/* Functions that operate on indexed storage */
__DLL__ herr_t H5F_istore_init (H5F_t *f);
__DLL__ herr_t H5F_istore_flush (H5F_t *f, hbool_t preempt);
__DLL__ herr_t H5F_istore_dest (H5F_t *f);
__DLL__ herr_t H5F_istore_stats (H5F_t *f, hbool_t headers);
__DLL__ herr_t H5F_istore_create(H5F_t *f,
struct H5O_layout_t *layout/*in,out*/);
__DLL__ herr_t H5F_istore_read(H5F_t *f, hid_t dxpl_id,
const struct H5O_layout_t *layout,
struct H5P_genplist_t *dc_plist,
const hsize_t size_m[], const hssize_t offset_m[],
const hssize_t offset_f[], const hsize_t size[],
void *buf/*out*/);
__DLL__ herr_t H5F_istore_write(H5F_t *f, hid_t dxpl_id,
const struct H5O_layout_t *layout,
struct H5P_genplist_t *dc_plist,
const hsize_t size_m[], const hssize_t offset_m[],
const hssize_t offset[], const hsize_t size[],
const void *buf);
__DLL__ herr_t H5F_istore_allocate (H5F_t *f, hid_t dxpl_id,
const struct H5O_layout_t *layout,
const hsize_t *space_dim,
struct H5P_genplist_t *dc_plist);
/* Functions that operate on contiguous storage wrt boot block */
__DLL__ herr_t H5F_contig_read(H5F_t *f, hsize_t max_data, H5FD_mem_t type, haddr_t addr,
size_t size, hid_t dxpl_id, void *_buf/*out*/);
__DLL__ herr_t H5F_contig_write(H5F_t *f, hsize_t max_data, H5FD_mem_t type, haddr_t addr,
size_t size, hid_t dxpl_id, const void *buf);
/* Functions that operate on contiguous storage wrt boot block */
__DLL__ herr_t H5F_contig_readv(H5F_t *f, hsize_t max_data, H5FD_mem_t type, haddr_t addr,
size_t nseq, size_t size[], hsize_t offset[], hid_t dxpl_id, void *_buf/*out*/);
__DLL__ herr_t H5F_contig_writev(H5F_t *f, hsize_t max_data, H5FD_mem_t type, haddr_t addr,
size_t nseq, size_t size[], hsize_t offset[], hid_t dxpl_id, const void *buf);
#endif
|
