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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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 COPYING file, which can be found at the root of the source code *
* distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. *
* If you do not have access to either file, you may request a copy from *
* help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* This file contains public declarations for the H5S module.
*/
#ifndef _H5Spublic_H
#define _H5Spublic_H
/* Public headers needed by this file */
#include "H5public.h"
#include "H5Ipublic.h"
/* Define atomic datatypes */
#define H5S_ALL (hid_t)0
#define H5S_UNLIMITED HSIZE_UNDEF
/* Define user-level maximum number of dimensions */
#define H5S_MAX_RANK 32
/* Flags for selection iterators */
#define H5S_SEL_ITER_GET_SEQ_LIST_SORTED 0x0001 /* Retrieve elements from iterator
* in increasing offset order, for
* each call to retrieve sequences.
* Currently, this only applies to
* point selections, as hyperslab
* selections are always returned
* in increasing offset order.
*
* Note that the order is only
* increasing for each call to
* get_seq_list, the next set of
* sequences could start with an
* earlier offset than the previous
* one.
*/
#define H5S_SEL_ITER_SHARE_WITH_DATASPACE 0x0002 /* Don't copy the dataspace
* selection when creating the
* selection iterator.
*
* This can improve performance
* of creating the iterator, but
* the dataspace _MUST_NOT_ be
* modified or closed until the
* selection iterator is closed
* or the iterator's behavior
* will be undefined.
*/
/* Different types of dataspaces */
typedef enum H5S_class_t {
H5S_NO_CLASS = -1, /*error */
H5S_SCALAR = 0, /*scalar variable */
H5S_SIMPLE = 1, /*simple dataspace */
H5S_NULL = 2 /*null dataspace */
} H5S_class_t;
/* Different ways of combining selections */
typedef enum H5S_seloper_t {
H5S_SELECT_NOOP = -1, /* error */
H5S_SELECT_SET = 0, /* Select "set" operation */
H5S_SELECT_OR, /* Binary "or" operation for hyperslabs
* (add new selection to existing selection)
* Original region: AAAAAAAAAA
* New region: BBBBBBBBBB
* A or B: CCCCCCCCCCCCCCCC
*/
H5S_SELECT_AND, /* Binary "and" operation for hyperslabs
* (only leave overlapped regions in selection)
* Original region: AAAAAAAAAA
* New region: BBBBBBBBBB
* A and B: CCCC
*/
H5S_SELECT_XOR, /* Binary "xor" operation for hyperslabs
* (only leave non-overlapped regions in selection)
* Original region: AAAAAAAAAA
* New region: BBBBBBBBBB
* A xor B: CCCCCC CCCCCC
*/
H5S_SELECT_NOTB, /* Binary "not" operation for hyperslabs
* (only leave non-overlapped regions in original selection)
* Original region: AAAAAAAAAA
* New region: BBBBBBBBBB
* A not B: CCCCCC
*/
H5S_SELECT_NOTA, /* Binary "not" operation for hyperslabs
* (only leave non-overlapped regions in new selection)
* Original region: AAAAAAAAAA
* New region: BBBBBBBBBB
* B not A: CCCCCC
*/
H5S_SELECT_APPEND, /* Append elements to end of point selection */
H5S_SELECT_PREPEND, /* Prepend elements to beginning of point selection */
H5S_SELECT_INVALID /* Invalid upper bound on selection operations */
} H5S_seloper_t;
/* Enumerated type for the type of selection */
typedef enum {
H5S_SEL_ERROR = -1, /* Error */
H5S_SEL_NONE = 0, /* Nothing selected */
H5S_SEL_POINTS = 1, /* Points / elements selected */
H5S_SEL_HYPERSLABS = 2, /* Hyperslab selected */
H5S_SEL_ALL = 3, /* Entire extent selected */
H5S_SEL_N /*THIS MUST BE LAST */
} H5S_sel_type;
#ifdef __cplusplus
extern "C" {
#endif
/* Operations on dataspaces */
H5_DLL hid_t H5Screate(H5S_class_t type);
H5_DLL hid_t H5Screate_simple(int rank, const hsize_t dims[],
const hsize_t maxdims[]);
H5_DLL herr_t H5Sset_extent_simple(hid_t space_id, int rank,
const hsize_t dims[], const hsize_t max[]);
H5_DLL hid_t H5Scopy(hid_t space_id);
H5_DLL herr_t H5Sclose(hid_t space_id);
H5_DLL herr_t H5Sencode2(hid_t obj_id, void *buf, size_t *nalloc, hid_t fapl);
H5_DLL hid_t H5Sdecode(const void *buf);
H5_DLL hssize_t H5Sget_simple_extent_npoints(hid_t space_id);
H5_DLL int H5Sget_simple_extent_ndims(hid_t space_id);
H5_DLL int H5Sget_simple_extent_dims(hid_t space_id, hsize_t dims[],
hsize_t maxdims[]);
H5_DLL htri_t H5Sis_simple(hid_t space_id);
H5_DLL H5S_class_t H5Sget_simple_extent_type(hid_t space_id);
H5_DLL herr_t H5Sset_extent_none(hid_t space_id);
H5_DLL herr_t H5Sextent_copy(hid_t dst_id,hid_t src_id);
H5_DLL htri_t H5Sextent_equal(hid_t sid1, hid_t sid2);
/* Operations on dataspace selections */
H5_DLL H5S_sel_type H5Sget_select_type(hid_t spaceid);
H5_DLL hssize_t H5Sget_select_npoints(hid_t spaceid);
H5_DLL herr_t H5Sselect_copy(hid_t dst_id, hid_t src_id);
H5_DLL htri_t H5Sselect_valid(hid_t spaceid);
H5_DLL herr_t H5Sget_select_bounds(hid_t spaceid, hsize_t start[],
hsize_t end[]);
H5_DLL herr_t H5Soffset_simple(hid_t space_id, const hssize_t *offset);
H5_DLL herr_t H5Sselect_all(hid_t spaceid);
H5_DLL herr_t H5Sselect_none(hid_t spaceid);
H5_DLL herr_t H5Sselect_elements(hid_t space_id, H5S_seloper_t op,
size_t num_elem, const hsize_t *coord);
H5_DLL hssize_t H5Sget_select_elem_npoints(hid_t spaceid);
H5_DLL herr_t H5Sget_select_elem_pointlist(hid_t spaceid, hsize_t startpoint,
hsize_t numpoints, hsize_t buf[/*numpoints*/]);
H5_DLL herr_t H5Sselect_hyperslab(hid_t space_id, H5S_seloper_t op,
const hsize_t start[], const hsize_t _stride[], const hsize_t count[],
const hsize_t _block[]);
H5_DLL hid_t H5Scombine_hyperslab(hid_t space_id, H5S_seloper_t op,
const hsize_t start[], const hsize_t _stride[], const hsize_t count[],
const hsize_t _block[]);
H5_DLL herr_t H5Smodify_select(hid_t space1_id, H5S_seloper_t op, hid_t space2_id);
H5_DLL hid_t H5Scombine_select(hid_t space1_id, H5S_seloper_t op, hid_t space2_id);
H5_DLL htri_t H5Sis_regular_hyperslab(hid_t spaceid);
H5_DLL htri_t H5Sget_regular_hyperslab(hid_t spaceid, hsize_t start[],
hsize_t stride[], hsize_t count[], hsize_t block[]);
H5_DLL hssize_t H5Sget_select_hyper_nblocks(hid_t spaceid);
H5_DLL herr_t H5Sget_select_hyper_blocklist(hid_t spaceid, hsize_t startblock,
hsize_t numblocks, hsize_t buf[/*numblocks*/]);
/* Operations on dataspace selection iterators */
H5_DLL hid_t H5Ssel_iter_create(hid_t spaceid, size_t elmt_size, unsigned flags);
H5_DLL herr_t H5Ssel_iter_get_seq_list(hid_t sel_iter_id, size_t maxseq,
size_t maxbytes, size_t *nseq, size_t *nbytes, hsize_t *off, size_t *len);
H5_DLL herr_t H5Ssel_iter_close(hid_t sel_iter_id);
/* Symbols defined for compatibility with previous versions of the HDF5 API.
*
* Use of these symbols is deprecated.
*/
#ifndef H5_NO_DEPRECATED_SYMBOLS
/* Function prototypes */
H5_DLL herr_t H5Sencode1(hid_t obj_id, void *buf, size_t *nalloc);
#endif /* H5_NO_DEPRECATED_SYMBOLS */
#ifdef __cplusplus
}
#endif
#endif /* _H5Spublic_H */
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