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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 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 H5T module
*/
#ifndef _H5Tprivate_H
#define _H5Tprivate_H
/* Get package's public header */
#include "H5Tpublic.h"
/* Other public headers needed by this file */
#include "H5MMpublic.h" /* Memory management */
#include "H5VLpublic.h" /* VOL */
/* Private headers needed by this file */
#include "H5private.h" /* Generic Functions */
#include "H5Gprivate.h" /* Groups */
#include "H5Rprivate.h" /* References */
/* Macro for size of temporary buffers to contain a single element */
#define H5T_ELEM_BUF_SIZE 256
/* If the module using this macro is allowed access to the private variables, access them directly */
#ifdef H5T_PACKAGE
#define H5T_GET_SIZE(T) ((T)->shared->size)
#define H5T_GET_SHARED(T) ((T)->shared)
#define H5T_GET_MEMBER_OFFSET(T, I) ((T)->u.compnd.memb[I].offset)
#define H5T_GET_MEMBER_SIZE(T, I) ((T)->u.compnd.memb[I].shared->size)
#else /* H5T_PACKAGE */
#define H5T_GET_SIZE(T) (H5T_get_size(T))
#define H5T_GET_SHARED(T) (H5T_get_shared(T))
#define H5T_GET_MEMBER_OFFSET(T, I) (H5T_get_member_offset((T), (I)))
#define H5T_GET_MEMBER_SIZE(T, I) (H5T_get_member_size((T), (I)))
#endif /* H5T_PACKAGE */
/* Forward references of package typedefs (declared in H5Tpkg.h) */
typedef struct H5T_t H5T_t;
typedef struct H5T_stats_t H5T_stats_t;
typedef struct H5T_path_t H5T_path_t;
/* How to copy a datatype */
typedef enum H5T_copy_t {
H5T_COPY_TRANSIENT,
H5T_COPY_ALL,
H5T_COPY_REOPEN
} H5T_copy_t;
/* Location of datatype information */
typedef enum {
H5T_LOC_BADLOC = 0, /* invalid datatype location */
H5T_LOC_MEMORY, /* data stored in memory */
H5T_LOC_DISK, /* data stored on disk */
H5T_LOC_MAXLOC /* highest value (Invalid as true value) */
} H5T_loc_t;
/* VL allocation information */
typedef struct {
H5MM_allocate_t alloc_func; /* Allocation function */
void *alloc_info; /* Allocation information */
H5MM_free_t free_func; /* Free function */
void *free_info; /* Free information */
} H5T_vlen_alloc_info_t;
/* Structure for conversion callback property */
typedef struct H5T_conv_cb_t {
H5T_conv_except_func_t func;
void* user_data;
} H5T_conv_cb_t;
/* Values for the optimization of compound data reading and writing. They indicate
* whether the fields of the source and destination are subset of each other and
* there is no conversion needed.
*/
typedef enum {
H5T_SUBSET_BADVALUE = -1, /* Invalid value */
H5T_SUBSET_FALSE = 0, /* Source and destination aren't subset of each other */
H5T_SUBSET_SRC, /* Source is the subset of dest and no conversion is needed */
H5T_SUBSET_DST, /* Dest is the subset of source and no conversion is needed */
H5T_SUBSET_CAP /* Must be the last value */
} H5T_subset_t;
typedef struct H5T_subset_info_t {
H5T_subset_t subset; /* See above */
size_t copy_size; /* Size in bytes, to copy for each element */
} H5T_subset_info_t;
/* Forward declarations for prototype arguments */
struct H5O_t;
/* The native endianess of the platform */
H5_DLLVAR H5T_order_t H5T_native_order_g;
/* Private functions */
H5_DLL herr_t H5TN_init_interface(void);
H5_DLL herr_t H5T_init(void);
H5_DLL H5T_t *H5T_copy(H5T_t *old_dt, H5T_copy_t method);
H5_DLL herr_t H5T_lock(H5T_t *dt, hbool_t immutable);
H5_DLL herr_t H5T_close(H5T_t *dt);
H5_DLL H5T_t *H5T_get_super(const H5T_t *dt);
H5_DLL H5T_class_t H5T_get_class(const H5T_t *dt, htri_t internal);
H5_DLL htri_t H5T_detect_class(const H5T_t *dt, H5T_class_t cls, hbool_t from_api);
H5_DLL size_t H5T_get_size(const H5T_t *dt);
H5_DLL int H5T_cmp(const H5T_t *dt1, const H5T_t *dt2, hbool_t superset);
H5_DLL herr_t H5T_encode(H5T_t *obj, unsigned char *buf, size_t *nalloc);
H5_DLL H5T_t *H5T_decode(const unsigned char *buf);
H5_DLL herr_t H5T_debug(const H5T_t *dt, FILE * stream);
H5_DLL struct H5O_loc_t *H5T_oloc(H5T_t *dt);
H5_DLL H5G_name_t *H5T_nameof(H5T_t *dt);
H5_DLL htri_t H5T_is_immutable(const H5T_t *dt);
H5_DLL htri_t H5T_is_named(const H5T_t *dt);
H5_DLL htri_t H5T_is_relocatable(const H5T_t *dt);
H5_DLL H5T_path_t *H5T_path_find(const H5T_t *src, const H5T_t *dst,
const char *name, H5T_conv_t func, hid_t dxpl_id, hbool_t is_api);
H5_DLL hbool_t H5T_path_noop(const H5T_path_t *p);
H5_DLL H5T_bkg_t H5T_path_bkg(const H5T_path_t *p);
H5_DLL H5T_subset_info_t *H5T_path_compound_subset(const H5T_path_t *p);
H5_DLL herr_t H5T_convert(H5T_path_t *tpath, hid_t src_id, hid_t dst_id,
size_t nelmts, size_t buf_stride, size_t bkg_stride, void *buf, void *bkg,
hid_t dset_xfer_plist);
H5_DLL herr_t H5T_vlen_reclaim(void *elem, hid_t type_id, unsigned ndim, const hsize_t *point, void *_op_data);
H5_DLL herr_t H5T_vlen_reclaim_elmt(void *elem, H5T_t *dt, hid_t dxpl_id);
H5_DLL herr_t H5T_vlen_get_alloc_info(hid_t dxpl_id, H5T_vlen_alloc_info_t **vl_alloc_info);
H5_DLL htri_t H5T_set_loc(H5T_t *dt, H5F_t *f, H5T_loc_t loc);
H5_DLL htri_t H5T_is_sensible(const H5T_t *dt);
H5_DLL uint32_t H5T_hash(H5F_t * file, const H5T_t *dt);
H5_DLL herr_t H5T_set_latest_version(H5T_t *dt);
H5_DLL herr_t H5T_patch_file(H5T_t *dt, H5F_t *f);
H5_DLL htri_t H5T_is_variable_str(const H5T_t *dt);
H5_DLL void * H5T_get_named_type(const H5T_t *dt);
H5_DLL hid_t H5VL_create_datatype(void *dt_obj, H5VL_t *vol_plugin, hbool_t app_ref);
H5_DLL herr_t H5T_set_vol_object(H5T_t *type, void *vol_obj);
/* Reference specific functions */
H5_DLL H5R_type_t H5T_get_ref_type(const H5T_t *dt);
/* Operations on named datatypes */
H5_DLL H5T_t *H5T_open(const H5G_loc_t *loc, hid_t dxpl_id);
H5_DLL htri_t H5T_committed(const H5T_t *type);
H5_DLL int H5T_link(const H5T_t *type, int adjust, hid_t dxpl_id);
H5_DLL herr_t H5T_update_shared(H5T_t *type);
/* Field functions (for both compound & enumerated types) */
H5_DLL int H5T_get_nmembers(const H5T_t *dt);
H5_DLL H5T_t *H5T_get_member_type(const H5T_t *dt, unsigned membno, H5T_copy_t method);
H5_DLL size_t H5T_get_member_offset(const H5T_t *dt, unsigned membno);
/* Atomic functions */
H5_DLL H5T_order_t H5T_get_order(const H5T_t *dt);
H5_DLL size_t H5T_get_precision(const H5T_t *dt);
H5_DLL int H5T_get_offset(const H5T_t *dt);
/* Fixed-point functions */
H5_DLL H5T_sign_t H5T_get_sign(H5T_t const *dt);
/* Native type function */
H5_DLL H5T_t *H5T_get_native_type(H5T_t *dt, H5T_direction_t direction,
size_t *struct_align, size_t *offset, size_t *comp_size);
#endif /* _H5Tprivate_H */
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