summaryrefslogtreecommitdiffstats
path: root/src/H5Fprivate.h
blob: 50d67076119f8a4f410965401283cfb4556621c9 (plain)
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
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
/****************************************************************************
 * NCSA HDF                                                                 *
 * Software Development Group                                               *
 * National Center for Supercomputing Applications                          *
 * University of Illinois at Urbana-Champaign                               *
 * 605 E. Springfield, Champaign IL 61820                                   *
 *                                                                          *
 * For conditions of distribution and use, see the accompanying             *
 * hdf/COPYING file.                                                        *
 *                                                                          *
 ****************************************************************************/

/* $Id$ */

/*
 * This file contains macros & information for file access
 */

#ifndef _H5Fprivate_H
#define _H5Fprivate_H
#include <H5Fpublic.h>

/* This is a near top-level header! Try not to include much! */
#include <H5private.h>
#include <H5FDpublic.h>		/*file drivers				     */
#include <H5MMpublic.h>		/*for H5MM_allocate_t and H5MM_free_t types  */

/*
 * 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

/* size of size_t and off_t as they exist on disk */
#define H5F_SIZEOF_ADDR(F)	((F)->shared->fcpl->sizeof_addr)
#define H5F_SIZEOF_SIZE(F)	((F)->shared->fcpl->sizeof_size)

/*
 * Private file open flags.
 */
#define H5F_ACC_PUBLIC_FLAGS 	0x00ffu

/*
 * Encode and decode macros for file meta-data.
 * Currently, all file meta-data is little-endian.
 */

/* For non-little-endian platforms, encode each byte by itself */
#ifdef WORDS_BIGENDIAN
#  define INT16ENCODE(p, i) {						      \
   *(p) = (uint8_t)( (uintn)(i)	    & 0xff); (p)++;			      \
   *(p) = (uint8_t)(((uintn)(i) >> 8) & 0xff); (p)++;			      \
}

#  define UINT16ENCODE(p, i) {						      \
   *(p) = (uint8_t)(	    (i)	    & 0xff); (p)++;			      \
   *(p) = (uint8_t)(((uintn)(i) >> 8) & 0xff); (p)++;			      \
}

#  define INT32ENCODE(p, i) {						      \
   *(p) = (uint8_t)( (uint32_t)(i)	  & 0xff); (p)++;		      \
   *(p) = (uint8_t)(((uint32_t)(i) >>  8) & 0xff); (p)++;		      \
   *(p) = (uint8_t)(((uint32_t)(i) >> 16) & 0xff); (p)++;		      \
   *(p) = (uint8_t)(((uint32_t)(i) >> 24) & 0xff); (p)++;		      \
}

#  define UINT32ENCODE(p, i) {						      \
   *(p) = (uint8_t)( (i)        & 0xff); (p)++;				      \
   *(p) = (uint8_t)(((i) >>  8) & 0xff); (p)++;				      \
   *(p) = (uint8_t)(((i) >> 16) & 0xff); (p)++;				      \
   *(p) = (uint8_t)(((i) >> 24) & 0xff); (p)++;				      \
}

#  define INT64ENCODE(p, n) {						      \
   int64_t _n = (n);							      \
   size_t _i;								      \
   uint8_t *_p = (uint8_t*)(p);						      \
   for (_i=0; _i<sizeof(int64_t); _i++, _n>>=8) {			      \
      *_p++ = (uint8_t)(_n & 0xff);					      \
   }									      \
   for (/*void*/; _i<8; _i++) {						      \
      *_p++ = (n)<0 ? 0xff : 0;						      \
   }									      \
   (p) = (uint8_t*)(p)+8;						      \
}

#  define UINT64ENCODE(p, n) {						      \
   uint64_t _n = (n);							      \
   size_t _i;								      \
   uint8_t *_p = (uint8_t*)(p);						      \
   for (_i=0; _i<sizeof(uint64_t); _i++, _n>>=8) {			      \
      *_p++ = (uint8_t)(_n & 0xff);					      \
   }									      \
   for (/*void*/; _i<8; _i++) {						      \
      *_p++ = 0;							      \
   }									      \
   (p) = (uint8_t*)(p)+8;						      \
}

/* DECODE converts little endian bytes pointed by p to integer values and store
 * it in i.  For signed values, need to do sign-extension when converting
 * the last byte which carries the sign bit.
 * The macros does not require i be of a certain byte sizes.  It just requires
 * i be big enough to hold the intended value range.  E.g. INT16DECODE works
 * correctly even if i is actually a 64bit int like in a Cray.
 */

#  define INT16DECODE(p, i) {						      \
   (i)	= (int16_t)((*(p) & 0xff));      (p)++;				      \
   (i) |= (int16_t)(((*(p) & 0xff) << 8) |                                    \
                   ((*(p) & 0x80) ? ~0xffff : 0x0)); (p)++;		      \
}

#  define UINT16DECODE(p, i) {						      \
   (i)	= (uint16_t) (*(p) & 0xff);	  (p)++;			      \
   (i) |= (uint16_t)((*(p) & 0xff) << 8); (p)++;			      \
}

#  define INT32DECODE(p, i) {						      \
   (i)	= (	     *(p) & 0xff);	  (p)++;			      \
   (i) |= ((int32_t)(*(p) & 0xff) <<  8); (p)++;			      \
   (i) |= ((int32_t)(*(p) & 0xff) << 16); (p)++;			      \
   (i) |= ((int32_t)(((*(p) & 0xff) << 24) |                                  \
                   ((*(p) & 0x80) ? ~0xffffffff : 0x0))); (p)++;	      \
}

#  define UINT32DECODE(p, i) {						      \
   (i)	=  (uint32_t)(*(p) & 0xff);	   (p)++;			      \
   (i) |= ((uint32_t)(*(p) & 0xff) <<  8); (p)++;			      \
   (i) |= ((uint32_t)(*(p) & 0xff) << 16); (p)++;			      \
   (i) |= ((uint32_t)(*(p) & 0xff) << 24); (p)++;			      \
}

#  define INT64DECODE(p, n) {						      \
   /* WE DON'T CHECK FOR OVERFLOW! */					      \
   size_t _i;								      \
   n = 0;								      \
   (p) += 8;								      \
   for (_i=0; _i<sizeof(int64_t); _i++) {				      \
      n = (n<<8) | *(--p);						      \
   }									      \
   (p) += 8;								      \
}

#  define UINT64DECODE(p, n) {						      \
   /* WE DON'T CHECK FOR OVERFLOW! */					      \
   size_t _i;								      \
   n = 0;								      \
   (p) += 8;								      \
   for (_i=0; _i<sizeof(uint64_t); _i++) {				      \
      n = (n<<8) | *(--p);						      \
   }									      \
   (p) += 8;								      \
}

#else
   /* For little-endian platforms, make the compiler do the work */
#  define INT16ENCODE(p, i) {*((int16_t*)(p))=(int16_t)(i);(p)+=2;}
#  define UINT16ENCODE(p, i) {*((uint16_t*)(p))=(uint16_t)(i);(p)+=2;}
#  define INT32ENCODE(p, i)  {*((int32_t*)(p))=(int32_t)(i);(p)+=4;}
#  define UINT32ENCODE(p, i) {*((uint32_t*)(p))=(uint32_t)(i);(p)+=4;}

#  define INT64ENCODE(p, i)  {						      \
   *((int64_t *)(p)) = (int64_t)(i);					      \
   (p) += sizeof(int64_t);						      \
   if (4==sizeof(int64_t)) {						      \
      *(p)++ = (i)<0?0xff:0x00;						      \
      *(p)++ = (i)<0?0xff:0x00;						      \
      *(p)++ = (i)<0?0xff:0x00;						      \
      *(p)++ = (i)<0?0xff:0x00;						      \
   }									      \
}

#  define UINT64ENCODE(p, i) {						      \
   *((uint64_t *)(p)) = (uint64_t)(i);					      \
   (p) += sizeof(uint64_t);						      \
   if (4==sizeof(uint64_t)) {						      \
      *(p)++ = 0x00;							      \
      *(p)++ = 0x00;							      \
      *(p)++ = 0x00;							      \
      *(p)++ = 0x00;							      \
   }									      \
}

#  define INT16DECODE(p, i)  {(i)=(int16_t)(*(const int16_t*)(p));(p)+=2;}
#  define UINT16DECODE(p, i) {(i)=(uint16_t)(*(const uint16_t*)(p));(p)+=2;}
#  define INT32DECODE(p, i)  {(i)=(int32_t)(*(const int32_t*)(p));(p)+=4;}
#  define UINT32DECODE(p, i) {(i)=(uint32_t)(*(const uint32_t*)(p));(p)+=4;}
#  define INT64DECODE(p, i)  {(i)=(int64_t)(*(const int64_t*)(p));(p)+=8;}
#  define UINT64DECODE(p, i) {(i)=(uint64_t)(*(const uint64_t*)(p));(p)+=8;}

#endif

#define NBYTEENCODE(d, s, n) {	 HDmemcpy(d,s,n); p+=n }

/*
 * Note:  the NBYTEDECODE macro is backwards from the memcpy() routine, in
 *	  the spirit of the other DECODE macros.
 */
#define NBYTEDECODE(s, d, n) {	 HDmemcpy(d,s,n); p+=n }

/*
 * Macros that check for overflows.  These are somewhat dangerous to fiddle
 * with.
 */
#if (SIZEOF_SIZE_T >= 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

/*
 * File-creation property list.
 */
typedef struct H5F_create_t {
    hsize_t	userblock_size;	/* Size of the file user block in bytes */
    intn	sym_leaf_k;	/* 1/2 rank for symbol table leaf nodes */
    intn	btree_k[8];	/* 1/2 rank for btree internal nodes	*/
    size_t	sizeof_addr;	/* Number of bytes in an address	*/
    size_t	sizeof_size;	/* Number of bytes for obj sizes	*/
    intn	bootblock_ver;	/* Version # of the bootblock		*/
    intn	freespace_ver;	/* Version # of the free-space information*/
    intn	objectdir_ver;	/* Version # of the object directory format*/
    intn	sharedheader_ver;/* Version # of the shared header format */
} H5F_create_t;

/*
 * File-access property list.
 */
typedef struct H5F_access_t {
    intn	mdc_nelmts;	/* Size of meta data cache (elements)	*/
    intn	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				*/
    size_t	meta_block_size;    /* Minimum metadata allocation block size (when aggregating metadata allocations) */
    hsize_t	sieve_buf_size;     /* Maximum sieve buffer size (when data sieving is allowed by file driver) */
    uintn	gc_ref;		/* Garbage-collect references?		*/
    hid_t	driver_id;	/* File driver ID			*/
    void	*driver_info;	/* File driver specific information	*/
} H5F_access_t;

/* Data transfer property list */
typedef struct H5F_xfer_t {
    size_t		buf_size;	/*max temp buffer size		     */
    void		*tconv_buf;	/*type conversion buffer or null     */
    void		*bkg_buf;	/*background buffer or null	     */
    H5T_bkg_t		need_bkg;	/*type of background buffer needed   */
    double		split_ratios[3];/*B-tree node splitting ratios	     */
    uintn       	cache_hyper;    /*cache hyperslab blocks during I/O? */
    uintn       	block_limit;    /*largest hyperslab block to cache   */
    H5MM_allocate_t 	vlen_alloc; 	/*VL datatype allocation function    */
    void		*alloc_info;    /*VL datatype allocation information */
    H5MM_free_t		vlen_free;      /*VL datatype free function	     */
    void		*free_info;	/*VL datatype free information	     */
    hid_t		driver_id;	/*File driver ID		     */
    void		*driver_info;	/*File driver specific information   */
#ifdef COALESCE_READS
    uintn               gather_reads;   /*coalesce single reads into a read  */
                                        /*transaction                        */
#endif
} H5F_xfer_t;

/* The raw data chunk cache */
typedef struct H5F_rdcc_t {
    uintn		ninits;	/* Number of chunk creations		*/
    uintn		nhits;	/* Number of cache hits			*/
    uintn		nmisses;/* Number of cache misses		*/
    uintn		nflushes;/* Number of cache flushes		*/
    size_t		nbytes;	/* Current cached raw data in bytes	*/
    intn		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		*/
    intn		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 {
    uintn	flags;		/* Access Permissions for file		*/
    H5FD_t	*lf; 		/* Lower level file handle for I/O	*/
    uintn	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			*/
    H5F_create_t *fcpl;		/* File-creation property list		*/
                            /* This actually ends up being a pointer to a */
                            /* H5P_t type, which is returned from H5P_copy */
                            /* But that's ok because we only access it like */
                            /* a H5F_create_t until we pass it back to */
                            /* H5P_close to release it - QAK */
    intn	mdc_nelmts;	/* Size of meta data cache (elements)	*/
    intn	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				*/
    uintn	gc_ref;		/* Garbage-collect references?		*/
    struct H5G_t *root_grp;	/* Open root group			*/
    intn	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 */
    hsize_t sieve_size;     /* Size of the data sieve buffer used (in bytes) */
    hsize_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_file_t;

/* Mount property list */
typedef struct H5F_mprop_t {
    hbool_t		local;	/* Are absolute symlinks local to file?	*/
} H5F_mprop_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				*/
    uintn		nmounts;/* Number of children which are mounted	*/
    uintn		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).
 */
typedef struct H5F_t {
    uintn		nrefs;		/* Reference count		*/
    uintn		intent;		/* The flags passed to H5F_open()*/
    char		*name;		/* Name used to open file	*/
    H5F_file_t		*shared;	/* The shared file info		*/
    uintn		nopen_objs;	/* Number of open object headers*/
    hid_t		closing;	/* H5I_FILE_CLOSING ID or zero	*/
    H5F_mtab_t		mtab;		/* File mount table		*/
} H5F_t;

#ifdef NOT_YET
#define H5F_ENCODE_OFFSET(f,p,o) (H5F_SIZEOF_ADDR(f)==4 ? UINT32ENCODE(p,o) \
    : H5F_SIZEOF_ADDR(f)==8 ? UINT64ENCODE(p,o) \
    : H5F_SIZEOF_ADDR(f)==2 ? UINT16ENCODE(p,o) \
    : H5FPencode_unusual_offset(f,&(p),(uint8_t*)&(o)))
#else /* NOT_YET */
#define H5F_ENCODE_OFFSET(f,p,o) switch(H5F_SIZEOF_ADDR(f)) {		      \
    case 4: UINT32ENCODE(p,o); break;					      \
    case 8: UINT64ENCODE(p,o); break;					      \
    case 2: UINT16ENCODE(p,o); break;					      \
}
#endif /* NOT_YET */

#define H5F_DECODE_OFFSET(f,p,o)					      \
   switch (H5F_SIZEOF_ADDR (f)) {					      \
   case 4:								      \
      UINT32DECODE (p, o);						      \
      break;								      \
   case 8:								      \
      UINT64DECODE (p, o);						      \
      break;								      \
   case 2:								      \
      UINT16DECODE (p, o);						      \
      break;								      \
   }

#define H5F_encode_length(f,p,l)					      \
   switch(H5F_SIZEOF_SIZE(f)) {						      \
   case 4: UINT32ENCODE(p,l); break;					      \
   case 8: UINT64ENCODE(p,l); break;					      \
   case 2: UINT16ENCODE(p,l); break;					      \
}

#define H5F_decode_length(f,p,l)					      \
   switch(H5F_SIZEOF_SIZE(f)) {						      \
   case 4: UINT32DECODE(p,l); break;					      \
   case 8: UINT64DECODE(p,l); break;					      \
   case 2: UINT16DECODE(p,l); break;					      \
}

/* Forward declarations for prototypes arguments */
struct H5O_layout_t;
struct H5O_efl_t;
struct H5O_pline_t;
struct H5O_fill_t;
struct H5G_entry_t;

/* library variables */
__DLLVAR__ const H5F_create_t H5F_create_dflt;
__DLLVAR__ H5F_access_t H5F_access_dflt;
__DLLVAR__ H5F_xfer_t H5F_xfer_dflt;
__DLLVAR__ const H5F_mprop_t H5F_mount_dflt;

#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__ herr_t H5F_init(void);
__DLL__ void H5F_encode_length_unusual(const H5F_t *f, uint8_t **p,
				       uint8_t *l);
__DLL__ H5F_t *H5F_open(const char *name, uintn 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,
			 intn indent, intn fwidth);
__DLL__ herr_t H5F_istore_debug(H5F_t *f, haddr_t addr, FILE * stream,
				intn indent, intn fwidth, int ndims);
__DLL__ herr_t H5F_mountpoint(struct H5G_entry_t *find/*in,out*/);

/* Functions that operate on array storage */
__DLL__ herr_t H5F_arr_create(H5F_t *f,
			      struct H5O_layout_t *layout /*in,out*/);
__DLL__ herr_t H5F_arr_read (H5F_t *f, hid_t dxpl_id,
			     const struct H5O_layout_t *layout,
			     const struct H5O_pline_t *pline,
			     const struct H5O_fill_t *fill,
			     const struct H5O_efl_t *efl,
			     const hsize_t _hslab_size[],
			     const hsize_t mem_size[],
			     const hssize_t mem_offset[],
			     const hssize_t file_offset[], void *_buf/*out*/);
__DLL__ herr_t H5F_arr_write (H5F_t *f, hid_t dxpl_id,
			      const struct H5O_layout_t *layout,
			      const struct H5O_pline_t *pline,
			      const struct H5O_fill_t *fill,
			      const struct H5O_efl_t *efl,
			      const hsize_t _hslab_size[],
			      const hsize_t mem_size[],
			      const hssize_t mem_offset[],
			      const hssize_t file_offset[], const void *_buf);

/* 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__ hsize_t H5F_istore_allocated(H5F_t *f, int ndims, haddr_t addr);
__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,
			       const struct H5O_pline_t *pline,
			       const struct H5O_fill_t *fill,
			       const hssize_t offset[], 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,
				const struct H5O_pline_t *pline,
				const struct H5O_fill_t *fill,
				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,
				    const struct H5O_pline_t *pline,
				    const struct H5O_fill_t *fill);
__DLL__ herr_t H5F_istore_dump_btree(H5F_t *f, FILE *stream, int ndims,
				     haddr_t addr);

/* Functions that operate on contiguous storage wrt boot block */
__DLL__ herr_t H5F_contig_read(H5F_t *f, haddr_t addr, hsize_t size,
                hid_t dxpl_id, void *_buf/*out*/);
__DLL__ herr_t H5F_contig_write(H5F_t *f, H5FD_mem_t type, haddr_t addr,
                  hsize_t size, hid_t dxpl_id, const void *buf);

/* Functions that operate on blocks of bytes wrt boot block */
__DLL__ herr_t H5F_block_read(H5F_t *f, haddr_t addr, hsize_t size,
			      hid_t dxpl_id, void *buf/*out*/);
__DLL__ herr_t H5F_block_write(H5F_t *f, H5FD_mem_t type, haddr_t addr,
                  hsize_t size, hid_t dxpl_id, const void *buf);

/* Address-related macros and functions */
#define H5F_addr_overflow(X,Z)	(HADDR_UNDEF==(X) ||			      \
				 HADDR_UNDEF==(X)+(haddr_t)(Z) ||	      \
				 (X)+(haddr_t)(Z)<(X))
#define H5F_addr_hash(X,M)	((unsigned)((X)%(M)))
#define H5F_addr_defined(X)	(X!=HADDR_UNDEF)
#define H5F_addr_eq(X,Y)	((X)!=HADDR_UNDEF &&			      \
				 (Y)!=HADDR_UNDEF &&			      \
				 (X)==(Y))
#define H5F_addr_ne(X,Y)	(!H5F_addr_eq((X),(Y)))
#define H5F_addr_lt(X,Y) 	((X)!=HADDR_UNDEF &&			      \
				 (Y)!=HADDR_UNDEF &&			      \
				 (X)<(Y))
#define H5F_addr_le(X,Y)	((X)!=HADDR_UNDEF &&			      \
				 (Y)!=HADDR_UNDEF &&			      \
				 (X)<=(Y))
#define H5F_addr_gt(X,Y)	((X)!=HADDR_UNDEF &&			      \
				 (Y)!=HADDR_UNDEF &&			      \
				 (X)>(Y))
#define H5F_addr_ge(X,Y)	((X)!=HADDR_UNDEF &&			      \
				 (Y)!=HADDR_UNDEF &&			      \
				 (X)>=(Y))
#define H5F_addr_cmp(X,Y)	(H5F_addr_eq(X,Y)?0:			      \
				 (H5F_addr_lt(X, Y)?-1:1))
#define H5F_addr_pow2(N)	((haddr_t)1<<(N))

__DLL__ void H5F_addr_encode(H5F_t *, uint8_t**/*in,out*/, haddr_t);
__DLL__ void H5F_addr_decode(H5F_t *, const uint8_t**/*in,out*/,
			     haddr_t*/*out*/);
__DLL__ herr_t H5F_addr_pack(H5F_t UNUSED *f, haddr_t *addr_p/*out*/,
			     const unsigned long objno[2]);

/* Functions for allocation/releasing chunks */
__DLL__ void * H5F_istore_chunk_alloc(size_t chunk_size);
__DLL__ void * H5F_istore_chunk_free(void *chunk);
__DLL__ void * H5F_istore_chunk_realloc(void *chunk, size_t new_size);

#endif