summaryrefslogtreecommitdiffstats
path: root/src/H5Sprivate.h
blob: 351467019a75ce23e00beeb22a61443f3205a1e0 (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
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * 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.     *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/*
 * This file contains private information about the H5S module
 */
#ifndef _H5Sprivate_H
#define _H5Sprivate_H

/* Include package's public header */
#include "H5Spublic.h"

/* Public headers needed by this file */
#include "H5Dpublic.h"		/* Datasets				*/

/* Private headers needed by this file */
#include "H5private.h"		/* Generic Functions			*/
#include "H5Fprivate.h"		/* Files				*/
#include "H5Gprivate.h"		/* Groups				*/
#include "H5Oprivate.h"		/* Object headers		  	*/
#include "H5Pprivate.h"		/* Property lists			*/

/* Flags for H5S_find */
#define H5S_CONV_PAR_IO_POSSIBLE        0x0001
/* The storage options are mutually exclusive */
/* (2-bits reserved for storage type currently) */
#define H5S_CONV_STORAGE_COMPACT        0x0000  /* i.e. '0' */
#define H5S_CONV_STORAGE_CONTIGUOUS     0x0002  /* i.e. '1' */
#define H5S_CONV_STORAGE_CHUNKED        0x0004  /* i.e. '2' */
#define H5S_CONV_STORAGE_MASK           0x0006

/* Flags for "get_seq_list" methods */
#define H5S_GET_SEQ_LIST_SORTED         0x0001

/* Forward references of package typedefs */
typedef struct H5S_t H5S_t;
typedef struct H5S_extent_t H5S_extent_t;
typedef struct H5S_pnt_node_t H5S_pnt_node_t;
typedef struct H5S_hyper_span_t H5S_hyper_span_t;
typedef struct H5S_hyper_span_info_t H5S_hyper_span_info_t;

/* Information about one dimension in a hyperslab selection */
typedef struct H5S_hyper_dim_t {
    hsize_t start;
    hsize_t stride;
    hsize_t count;
    hsize_t block;
} H5S_hyper_dim_t;

/* Point selection iteration container */
typedef struct {
    H5S_pnt_node_t *curr;   /* Pointer to next node to output */
} H5S_point_iter_t;

/* Hyperslab selection iteration container */
typedef struct {
    /* Common fields for all hyperslab selections */
    hsize_t off[H5S_MAX_RANK];          /* Offset in span node (used as position for regular hyperslabs) */
    unsigned iter_rank;     /* Rank of iterator information */
                            /* (This should always be the same as the dataspace
                             * rank, except for regular hyperslab selections in
                             * which there are contiguous regions in the lower
                             * dimensions which have been "flattened" out
                             */
    hbool_t diminfo_valid;         /* Whether the dimension information is valid */

    /* "Flattened" regular hyperslab selection fields */
    H5S_hyper_dim_t diminfo[H5S_MAX_RANK];   /* "Flattened" regular selection information */
    hsize_t size[H5S_MAX_RANK];         /* "Flattened" dataspace extent information */
    hssize_t sel_off[H5S_MAX_RANK];     /* "Flattened" selection offset information */
    hbool_t flattened[H5S_MAX_RANK];    /* Whether this dimension has been flattened */

    /* Irregular hyperslab selection fields */
    H5S_hyper_span_info_t *spans;  /* Pointer to copy of the span tree */
    H5S_hyper_span_t *span[H5S_MAX_RANK];/* Array of pointers to span nodes */
} H5S_hyper_iter_t;

/* "All" selection iteration container */
typedef struct {
    hsize_t elmt_offset;         /* Next element to output */
    hsize_t byte_offset;         /* Next byte to output */
} H5S_all_iter_t;

/* Forward declaration of selection iteration class */
struct H5S_sel_iter_class_t;

/* Selection iteration container */
typedef struct H5S_sel_iter_t {
    /* Selection class */
    const struct H5S_sel_iter_class_t *type; /* Selection iteration class info */

    /* Information common to all iterators */
    unsigned rank;              /* Rank of dataspace the selection iterator is operating on */
    hsize_t *dims;              /* Dimensions of dataspace the selection is operating on */
    hsize_t elmt_left;          /* Number of elements left to iterate over */
    size_t elmt_size;           /* Size of elements to iterate over */

    /* Information specific to each type of iterator */
    union {
        H5S_point_iter_t pnt;   /* Point selection iteration information */
        H5S_hyper_iter_t hyp;   /* New Hyperslab selection iteration information */
        H5S_all_iter_t all;     /* "All" selection iteration information */
    } u;
} H5S_sel_iter_t;

/* If the module using this macro is allowed access to the private variables, access them directly */
#ifdef H5S_PACKAGE
#define H5S_GET_EXTENT_TYPE(S)          ((S)->extent.type)
#define H5S_GET_EXTENT_NDIMS(S)         ((S)->extent.rank)
#define H5S_GET_EXTENT_NPOINTS(S)       ((S)->extent.nelem)
#define H5S_GET_SELECT_NPOINTS(S)       ((S)->select.num_elem)
#define H5S_GET_SELECT_TYPE(S)          ((S)->select.type->type)
#define H5S_SELECT_GET_SEQ_LIST(S,FLAGS,ITER,MAXSEQ,MAXBYTES,NSEQ,NBYTES,OFF,LEN)             ((*(S)->select.type->get_seq_list)(S,FLAGS,ITER,MAXSEQ,MAXBYTES,NSEQ,NBYTES,OFF,LEN))
#define H5S_SELECT_VALID(S)             ((*(S)->select.type->is_valid)(S))
#define H5S_SELECT_RELEASE(S)           ((*(S)->select.type->release)(S))
#define H5S_SELECT_SERIAL_SIZE(S)       ((*(S)->select.type->serial_size)(S))
#define H5S_SELECT_SERIALIZE(S,BUF)     ((*(S)->select.type->serialize)(S,BUF))
#define H5S_SELECT_BOUNDS(S,START,END)  ((*(S)->select.type->bounds)(S,START,END))
#define H5S_SELECT_OFFSET(S, OFFSET)    ((*(S)->select.type->offset)(S, OFFSET))
#define H5S_SELECT_IS_CONTIGUOUS(S)     ((*(S)->select.type->is_contiguous)(S))
#define H5S_SELECT_IS_SINGLE(S)         ((*(S)->select.type->is_single)(S))
#define H5S_SELECT_IS_REGULAR(S)        ((*(S)->select.type->is_regular)(S))
#define H5S_SELECT_ADJUST_U(S,O)        ((*(S)->select.type->adjust_u)(S, O))
#define H5S_SELECT_ITER_COORDS(ITER,COORDS)     ((*(ITER)->type->iter_coords)(ITER,COORDS))
#define H5S_SELECT_ITER_BLOCK(ITER,START,END)   ((*(ITER)->type->iter_block)(ITER,START,END))
#define H5S_SELECT_ITER_NELMTS(ITER)    ((*(ITER)->type->iter_nelmts)(ITER))
#define H5S_SELECT_ITER_HAS_NEXT_BLOCK(ITER)    ((*(ITER)->type->iter_has_next_block)(ITER))
#define H5S_SELECT_ITER_NEXT(ITER,NELEM)((*(ITER)->type->iter_next)(ITER,NELEM))
#define H5S_SELECT_ITER_NEXT_BLOCK(ITER)        ((*(ITER)->type->iter_next_block)(ITER))
#define H5S_SELECT_ITER_RELEASE(ITER)   ((*(ITER)->type->iter_release)(ITER))
#else /* H5S_PACKAGE */
#define H5S_GET_EXTENT_TYPE(S)          (H5S_get_simple_extent_type(S))
#define H5S_GET_EXTENT_NDIMS(S)         (H5S_get_simple_extent_ndims(S))
#define H5S_GET_EXTENT_NPOINTS(S)       (H5S_get_simple_extent_npoints(S))
#define H5S_GET_SELECT_NPOINTS(S)       (H5S_get_select_npoints(S))
#define H5S_GET_SELECT_TYPE(S)          (H5S_get_select_type(S))
#define H5S_SELECT_GET_SEQ_LIST(S,FLAGS,ITER,MAXSEQ,MAXBYTES,NSEQ,NBYTES,OFF,LEN)       (H5S_select_get_seq_list(S,FLAGS,ITER,MAXSEQ,MAXBYTES,NSEQ,NBYTES,OFF,LEN))
#define H5S_SELECT_VALID(S)             (H5S_select_valid(S))
#define H5S_SELECT_RELEASE(S)           (H5S_select_release(S))
#define H5S_SELECT_SERIAL_SIZE(S)       (H5S_select_serial_size(S))
#define H5S_SELECT_SERIALIZE(S,BUF)     (H5S_select_serialize(S,BUF))
#define H5S_SELECT_BOUNDS(S,START,END)  (H5S_get_select_bounds(S,START,END))
#define H5S_SELECT_OFFSET(S, OFFSET)    (H5S_get_select_offset(S, OFFSET))
#define H5S_SELECT_IS_CONTIGUOUS(S)     (H5S_select_is_contiguous(S))
#define H5S_SELECT_IS_SINGLE(S)         (H5S_select_is_single(S))
#define H5S_SELECT_IS_REGULAR(S)        (H5S_select_is_regular(S))
#define H5S_SELECT_ADJUST_U(S,O)        (H5S_select_adjust_u(S, O))
#define H5S_SELECT_ITER_COORDS(ITER,COORDS)     (H5S_select_iter_coords(ITER,COORDS))
#define H5S_SELECT_ITER_BLOCK(ITER,START,END)   (H5S_select_iter_block(ITER,START,END))
#define H5S_SELECT_ITER_NELMTS(ITER)    (H5S_select_iter_nelmts(ITER))
#define H5S_SELECT_ITER_HAS_NEXT_BLOCK(ITER)    (H5S_select_iter_has_next_block(ITER))
#define H5S_SELECT_ITER_NEXT(ITER,NELEM)(H5S_select_iter_next(ITER,NELEM))
#define H5S_SELECT_ITER_NEXT_BLOCK(ITER)        (H5S_select_iter_next_block(ITER))
#define H5S_SELECT_ITER_RELEASE(ITER)   (H5S_select_iter_release(ITER))
#endif /* H5S_PACKAGE */
/* Handle these two callbacks in a special way, since they have prologs that need to be executed */
#define H5S_SELECT_COPY(DST,SRC,SHARE)  (H5S_select_copy(DST,SRC,SHARE))
#define H5S_SELECT_DESERIALIZE(S,BUF)   (H5S_select_deserialize(S,BUF))


/* Operations on dataspaces */
H5_DLL H5S_t *H5S_copy(const H5S_t *src, hbool_t share_selection, hbool_t copy_max);
H5_DLL herr_t H5S_close(H5S_t *ds);
H5_DLL H5S_class_t H5S_get_simple_extent_type(const H5S_t *ds);
H5_DLL hssize_t H5S_get_simple_extent_npoints(const H5S_t *ds);
H5_DLL hsize_t H5S_get_npoints_max(const H5S_t *ds);
H5_DLL hbool_t H5S_has_extent(const H5S_t *ds);
H5_DLL int H5S_get_simple_extent_ndims(const H5S_t *ds);
H5_DLL int H5S_get_simple_extent_dims(const H5S_t *ds, hsize_t dims[]/*out*/,
    hsize_t max_dims[]/*out*/);
H5_DLL herr_t H5S_write(H5F_t *f, hid_t dxpl_id, H5O_t *oh, unsigned update_flags,
    H5S_t *ds);
H5_DLL herr_t H5S_append(H5F_t *f, hid_t dxpl_id, struct H5O_t *oh, H5S_t *ds);
H5_DLL H5S_t *H5S_read(const struct H5O_loc_t *loc, hid_t dxpl_id);
H5_DLL htri_t H5S_set_extent(H5S_t *space, const hsize_t *size);
H5_DLL herr_t H5S_set_extent_real(H5S_t *space, const hsize_t *size);
H5_DLL H5S_t *H5S_create(H5S_class_t type);
H5_DLL H5S_t *H5S_create_simple(unsigned rank, const hsize_t dims[/*rank*/],
    const hsize_t maxdims[/*rank*/]);
H5_DLL herr_t H5S_set_latest_version(H5S_t *ds);
H5_DLL herr_t H5S_debug(H5F_t *f, hid_t dxpl_id, const void *_mesg, FILE *stream,
    int indent, int fwidth);
#ifndef H5_NO_DEPRECATED_SYMBOLS
H5_DLL int H5S_extend(H5S_t *space, const hsize_t *size);
#endif /* H5_NO_DEPRECATED_SYMBOLS */

/* Operations on dataspace extents */
H5_DLL hsize_t H5S_extent_nelem(const H5S_extent_t *ext);
H5_DLL htri_t H5S_extent_equal(const H5S_t *ds1, const H5S_t *ds2);

/* Operations on selections */
H5_DLL herr_t H5S_select_deserialize(H5S_t *space, const uint8_t *buf);
H5_DLL H5S_sel_type H5S_get_select_type(const H5S_t *space);
H5_DLL herr_t H5S_select_iterate(void *buf, hid_t type_id, const H5S_t *space,
    H5D_operator_t op, void *operator_data);
H5_DLL herr_t H5S_select_fill(const void *fill, size_t fill_size,
    const H5S_t *space, void *buf);
H5_DLL htri_t H5S_select_valid(const H5S_t *space);
H5_DLL hssize_t H5S_get_select_npoints(const H5S_t *space);
H5_DLL herr_t H5S_get_select_bounds(const H5S_t *space, hsize_t *start, hsize_t *end);
H5_DLL herr_t H5S_get_select_offset(const H5S_t *space, hsize_t *offset);
H5_DLL herr_t H5S_select_offset(H5S_t *space, const hssize_t *offset);
H5_DLL herr_t H5S_select_copy(H5S_t *dst, const H5S_t *src, hbool_t share_selection);
H5_DLL htri_t H5S_select_shape_same(const H5S_t *space1, const H5S_t *space2);
H5_DLL herr_t H5S_select_release(H5S_t *ds);
H5_DLL herr_t H5S_select_get_seq_list(const H5S_t *space, unsigned flags,
    H5S_sel_iter_t *iter, size_t maxseq, size_t maxbytes,
    size_t *nseq, size_t *nbytes, hsize_t *off, size_t *len);
H5_DLL hssize_t H5S_select_serial_size(const H5S_t *space);
H5_DLL herr_t H5S_select_serialize(const H5S_t *space, uint8_t *buf);
H5_DLL htri_t H5S_select_is_contiguous(const H5S_t *space);
H5_DLL htri_t H5S_select_is_single(const H5S_t *space);
H5_DLL htri_t H5S_select_is_regular(const H5S_t *space);
H5_DLL herr_t H5S_select_adjust_u(H5S_t *space, const hsize_t *offset);

/* Operations on all selections */
H5_DLL herr_t H5S_select_all(H5S_t *space, hbool_t rel_prev);

/* Operations on none selections */
H5_DLL herr_t H5S_select_none(H5S_t *space);

/* Operations on point selections */
H5_DLL herr_t H5S_select_elements(H5S_t *space, H5S_seloper_t op,
    size_t num_elem, const hsize_t *coord);

/* Operations on hyperslab selections */
H5_DLL herr_t H5S_select_hyperslab (H5S_t *space, H5S_seloper_t op, const hsize_t start[],
    const hsize_t *stride, const hsize_t count[], const hsize_t *block);
H5_DLL herr_t H5S_hyper_add_span_element(H5S_t *space, unsigned rank,
    hsize_t *coords);
H5_DLL herr_t H5S_hyper_reset_scratch(H5S_t *space);
H5_DLL herr_t H5S_hyper_convert(H5S_t *space);
#ifdef LATER
H5_DLL htri_t H5S_hyper_intersect (H5S_t *space1, H5S_t *space2);
#endif /* LATER */
H5_DLL htri_t H5S_hyper_intersect_block (H5S_t *space, hsize_t *start, hsize_t *end);
H5_DLL herr_t H5S_hyper_adjust_s(H5S_t *space, const hssize_t *offset);
H5_DLL herr_t H5S_hyper_move(H5S_t *space, const hssize_t *offset);
H5_DLL htri_t H5S_hyper_normalize_offset(H5S_t *space, hssize_t *old_offset);
H5_DLL herr_t H5S_hyper_denormalize_offset(H5S_t *space, const hssize_t *old_offset);

/* Operations on selection iterators */
H5_DLL herr_t H5S_select_iter_init(H5S_sel_iter_t *iter, const H5S_t *space, size_t elmt_size);
H5_DLL herr_t H5S_select_iter_coords(const H5S_sel_iter_t *sel_iter, hsize_t *coords);
H5_DLL hsize_t H5S_select_iter_nelmts(const H5S_sel_iter_t *sel_iter);
H5_DLL herr_t H5S_select_iter_next(H5S_sel_iter_t *sel_iter, size_t nelem);
H5_DLL herr_t H5S_select_iter_release(H5S_sel_iter_t *sel_iter);

#ifdef H5_HAVE_PARALLEL
#ifndef _H5S_IN_H5S_C
/* Global vars whose value comes from environment variable */
/* (Defined in H5S.c) */
H5_DLLVAR hbool_t		H5S_mpi_opt_types_g;
#endif /* _H5S_IN_H5S_C */

H5_DLL herr_t
H5S_mpio_space_type( const H5S_t *space, size_t elmt_size,
     /* out: */
     MPI_Datatype *new_type,
     size_t *count,
     hsize_t *extra_offset,
     hbool_t *is_derived_type );

H5_DLL herr_t
H5S_mpio_space_span_type( const H5S_t *space, size_t elmt_size,
     /* out: */
     MPI_Datatype *new_type,
     size_t *count,
     hsize_t *extra_offset,
     hbool_t *is_derived_type );

#endif /* H5_HAVE_PARALLEL */

#endif /* _H5Sprivate_H */