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/*
* Copyright (C) 1997 NCSA
* All rights reserved.
*
* Programmer: Robb Matzke <matzke@llnl.gov>
* Monday, December 8, 1997
*
* Purpose: This file contains declarations which are visible only within
* the H5T package. Source files outside the H5T package should
* include H5Tprivate.h instead.
*/
#ifndef H5T_PACKAGE
#error "Do not include this file outside the H5T package!"
#endif
#ifndef _H5Tpkg_H
#define _H5Tpkg_H
/*
* Define this to enable debugging.
*/
#ifdef NDEBUG
# undef H5T_DEBUG
#endif
#include <H5HGprivate.h>
#include <H5Tprivate.h>
#define H5T_NAMELEN 10 /*length of debugging name buffer */
typedef struct H5T_atomic_t {
H5T_order_t order; /*byte order */
size_t prec; /*precision in bits */
size_t offset; /*bit position of lsb of value */
H5T_pad_t lsb_pad;/*type of lsb padding */
H5T_pad_t msb_pad;/*type of msb padding */
union {
struct {
H5T_sign_t sign; /*type of integer sign */
} i; /*integer; integer types */
struct {
size_t sign; /*bit position of sign bit */
size_t epos; /*position of lsb of exponent */
size_t esize; /*size of exponent in bits */
uint64 ebias; /*exponent bias */
size_t mpos; /*position of lsb of mantissa */
size_t msize; /*size of mantissa */
H5T_norm_t norm; /*normalization */
H5T_pad_t pad; /*type of padding for internal bits */
} f; /*floating-point types */
struct {
H5T_cset_t cset; /*character set */
H5T_str_t pad; /*space or null padding of extra bytes */
} s;
} u;
} H5T_atomic_t;
typedef struct H5T_compnd_t {
intn nalloc; /*num entries allocated in MEMB array*/
intn nmembs; /*number of members defined in struct*/
struct H5T_member_t *memb; /*array of struct members */
} H5T_compnd_t;
typedef enum H5T_state_t {
H5T_STATE_TRANSIENT, /*type is a modifiable transient */
H5T_STATE_RDONLY, /*transient, not modifiable, closable*/
H5T_STATE_IMMUTABLE, /*constant, not closable */
H5T_STATE_NAMED, /*named constant, not open */
H5T_STATE_OPEN /*named constant, open object header */
} H5T_state_t;
struct H5T_t {
H5T_state_t state; /*current state of the type */
H5G_entry_t ent; /*the type is a named type */
H5F_t *sh_file;/*file pointer if this is a shared type */
H5T_class_t type; /*which class of type is this? */
size_t size; /*total size of an instance of this type */
union {
H5T_atomic_t atomic; /*an atomic data type */
H5T_compnd_t compnd; /*a compound data type (struct) */
} u;
};
typedef struct H5T_member_t {
char *name; /*name of this member */
size_t offset; /*offset from beginning of struct */
intn ndims; /*member dimensionality */
size_t dim[4]; /*size in each dimension */
intn perm[4]; /*index permutation */
struct H5T_t *type; /*type of this member */
} H5T_member_t;
/* The data type conversion database */
typedef struct H5T_path_t {
char name[H5T_NAMELEN]; /*name for debugging only */
H5T_t *src; /*source data type ID */
H5T_t *dst; /*destination data type ID */
H5T_conv_t func; /*data conversion function */
hbool_t is_hard; /*is it a hard function? */
H5T_cdata_t cdata; /*data for this function */
} H5T_path_t;
/* The master list of soft conversion functions */
typedef struct H5T_soft_t {
char name[H5T_NAMELEN]; /*name for debugging only */
H5T_class_t src; /*source data type class */
H5T_class_t dst; /*destination data type class */
H5T_conv_t func; /*the conversion function */
} H5T_soft_t;
/* Bit search direction */
typedef enum H5T_sdir_t {
H5T_BIT_LSB, /*search lsb toward msb */
H5T_BIT_MSB /*search msb toward lsb */
} H5T_sdir_t;
/* Function prototypes for H5T package scope */
H5T_path_t *H5T_path_find (const char *name, const H5T_t *src,
const H5T_t *dst, hbool_t create, H5T_conv_t func);
/* Conversion functions */
herr_t H5T_conv_order (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, void *_buf, void *bkg);
herr_t H5T_conv_struct (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, void *_buf, void *bkg);
herr_t H5T_conv_i_i (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, void *_buf, void __unused__ *bkg);
herr_t H5T_conv_i32le_f64le (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, void *_buf, void __unused__ *bkg);
/* Bit twiddling functions */
void H5T_bit_copy (uint8 *dst, size_t dst_offset, const uint8 *src,
size_t src_offset, size_t size);
void H5T_bit_set (uint8 *buf, size_t offset, size_t size, hbool_t value);
ssize_t H5T_bit_find (uint8 *buf, size_t offset, size_t size,
H5T_sdir_t direction, hbool_t value);
#endif
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