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Diffstat (limited to 'src/H5Sprivate.h')
| -rw-r--r-- | src/H5Sprivate.h | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/src/H5Sprivate.h b/src/H5Sprivate.h new file mode 100644 index 0000000..25e758e --- /dev/null +++ b/src/H5Sprivate.h @@ -0,0 +1,126 @@ +/**************************************************************************** + * 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. * + * * + ****************************************************************************/ + +/* + * This file contains private information about the H5S module + */ +#ifndef _H5Sprivate_H +#define _H5Sprivate_H + +#include <H5Spublic.h> + +/* Private headers needed by this file */ +#include <H5private.h> +#include <H5Gprivate.h> /*for H5G_entry_t */ +#include <H5Oprivate.h> + +#define H5S_RESERVED_ATOMS 2 + +/* Flags to indicate special dataspace features are active */ +#define H5S_VALID_MAX 0x01 +#define H5S_VALID_PERM 0x02 + +typedef struct H5S_hyperslab_t { + intn *start; /* Location of start of hyperslab */ + size_t *count; /* Number of elements in hyperslab */ + size_t *stride; /* Packing of values of hyperslab */ +} H5S_hyperslab_t; + +typedef struct H5S_simple_t { + intn rank; /*number of dimensions */ + size_t *size; /*dimension sizes */ + size_t *max; /*maximum dimension sizes or NULL */ + intn *perm; /*dimension permutations or NULL */ +} H5S_simple_t; + +typedef struct H5S_t { + H5S_class_t type; /*type of dimensionality object */ + union { + H5S_simple_t simple; /*simple dimensionality information */ + } u; + uintn hslab_def; /* Whether the hyperslab is defined */ + H5S_hyperslab_t h; /* Hyperslab information */ +} H5S_t; + +/* + * This structure contains information about how the elements of a data space + * are numbered. + */ +typedef struct H5S_number_t { + int _place_holder; /*remove this field! */ +} H5S_number_t; + +/* + * Callbacks for data space conversion. + */ +typedef struct H5S_tconv_t { + /* Initialize element numbering information */ + size_t (*init)(const struct H5O_layout_t *layout, const H5S_t *mem_space, + const H5S_t *file_space, H5S_number_t *numbering/*out*/); + + /* Gather elements from disk to type conversion buffer */ + size_t (*fgath)(H5F_t *f, const struct H5O_layout_t *layout, + size_t elmt_size, const H5S_t *file_space, + const H5S_number_t *numbering, size_t start, size_t nelmts, + void *tconv_buf/*out*/); + + /* Scatter elements from type conversion buffer to application buffer */ + herr_t (*mscat)(const void *tconv_buf, size_t elmt_size, + const H5S_t *mem_space, const H5S_number_t *numbering, + size_t start, size_t nelmts, void *buf/*out*/); + + /* Gather elements from app buffer to type conversion buffer */ + size_t (*mgath)(const void *buf, size_t elmt_size, + const H5S_t *mem_space, const H5S_number_t *numbering, + size_t start, size_t nelmts, void *tconv_buf/*out*/); + + /* Scatter elements from type conversion buffer to disk */ + herr_t (*fscat)(H5F_t *f, const struct H5O_layout_t *layout, + size_t elmt_size, const H5S_t *file_space, + const H5S_number_t *numbering, size_t start, size_t nelmts, + const void *tconv_buf); +} H5S_conv_t; + +H5S_t *H5S_copy (const H5S_t *src); +herr_t H5S_close (H5S_t *ds); +size_t H5S_get_npoints (const H5S_t *ds); +intn H5S_get_ndims (const H5S_t *ds); +intn H5S_get_dims (const H5S_t *ds, size_t dims[]/*out*/); +herr_t H5S_modify (H5G_entry_t *ent, const H5S_t *space); +H5S_t *H5S_read (H5F_t *f, H5G_entry_t *ent); +intn H5S_cmp (const H5S_t *ds1, const H5S_t *ds2); +hbool_t H5S_is_simple (const H5S_t *sdim); +uintn H5S_nelem (const H5S_t *space); +const H5S_conv_t *H5S_find (const H5S_t *mem_space, const H5S_t *file_space); +intn H5S_get_hyperslab (const H5S_t *ds, int offset[]/*out*/, + size_t size[]/*out*/, size_t stride[]/*out*/); +intn H5S_extend (H5S_t *space, const size_t *size); + +/* Conversion functions for simple data spaces */ +size_t H5S_simp_init (const struct H5O_layout_t *layout, + const H5S_t *mem_space, const H5S_t *file_space, + H5S_number_t *numbering/*out*/); +size_t H5S_simp_fgath (H5F_t *f, const struct H5O_layout_t *layout, + size_t elmt_size, const H5S_t *file_space, + const H5S_number_t *numbering, size_t start, + size_t nelmts, void *tconv_buf/*out*/); +herr_t H5S_simp_mscat (const void *tconv_buf, size_t elmt_size, + const H5S_t *mem_space, const H5S_number_t *numbering, + size_t start, size_t nelmts, void *buf/*out*/); +size_t H5S_simp_mgath (const void *buf, size_t elmt_size, + const H5S_t *mem_space, const H5S_number_t *numbering, + size_t start, size_t nelmts, void *tconv_buf/*out*/); +herr_t H5S_simp_fscat (H5F_t *f, const struct H5O_layout_t *layout, + size_t elmt_size, const H5S_t *file_space, + const H5S_number_t *numbering, size_t start, + size_t nelmts, const void *tconv_buf); +#endif |