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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* Programmer: Quincey Koziol
* Monday, Apr 20
*
* Purpose: This file contains declarations which are visible only within
* the H5A package. Source files outside the H5A package should
* include H5Aprivate.h instead.
*/
#ifndef H5A_PACKAGE
#error "Do not include this file outside the H5A package!"
#endif
#ifndef _H5Apkg_H
#define _H5Apkg_H
/*
* Define this to enable debugging.
*/
#ifdef NDEBUG
# undef H5A_DEBUG
#endif
/* Get package's private header */
#include "H5Aprivate.h"
/* Other private headers needed by this file */
#include "H5B2private.h" /* v2 B-trees */
#include "H5FLprivate.h" /* Free Lists */
#include "H5HFprivate.h" /* Fractal heaps */
#include "H5Oprivate.h" /* Object headers */
#include "H5Sprivate.h" /* Dataspace */
#include "H5Tprivate.h" /* Datatype functions */
/**************************/
/* Package Private Macros */
/**************************/
/* Standard length of fractal heap ID for attribute */
#define H5A_DENSE_FHEAP_ID_LEN 8
/****************************/
/* Package Private Typedefs */
/****************************/
/* Define the main attribute structure */
struct H5A_t {
hbool_t initialized;/* Indicate whether the attribute has been modified */
hbool_t obj_opened; /* Object header entry opened? */
H5O_loc_t oloc; /* Object location for object attribute is on */
H5G_name_t path; /* Group hierarchy path */
char *name; /* Attribute's name */
H5T_cset_t encoding; /* Character encoding of attribute name */
H5T_t *dt; /* Attribute's datatype */
size_t dt_size; /* Size of datatype on disk */
H5S_t *ds; /* Attribute's dataspace */
size_t ds_size; /* Size of dataspace on disk */
void *data; /* Attribute data (on a temporary basis) */
size_t data_size; /* Size of data on disk */
H5O_shared_t sh_loc; /* Location of shared message */
};
/* Typedefs for "dense" attribute storage */
/* (fractal heap & v2 B-tree info) */
/* Typedef for native 'name' field index records in the v2 B-tree */
/* (Keep 'id' field first so generic record handling in callbacks works) */
typedef struct H5A_dense_bt2_name_rec_t {
uint8_t id[H5A_DENSE_FHEAP_ID_LEN]; /* Heap ID for link */
uint8_t flags; /* Message flags for attribute */
uint32_t hash; /* Hash of 'name' field value */
} H5A_dense_bt2_name_rec_t;
/*
* Common data exchange structure for dense attribute storage. This structure
* is passed through the v2 B-tree layer to the methods for the objects
* to which the v2 B-tree points.
*/
typedef struct H5A_bt2_ud_common_t {
/* downward */
H5F_t *f; /* Pointer to file that fractal heap is in */
hid_t dxpl_id; /* DXPL for operation */
H5HF_t *fheap; /* Fractal heap handle */
H5HF_t *shared_fheap; /* Fractal heap handle for shared messages */
const char *name; /* Name of attribute to compare */
uint32_t name_hash; /* Hash of name of attribute to compare */
uint8_t flags; /* Flags for attribute storage location */
int64_t corder; /* Creation order value of attribute to compare */
H5B2_found_t found_op; /* Callback when correct attribute is found */
void *found_op_data; /* Callback data when correct attribute is found */
} H5A_bt2_ud_common_t;
/*
* Data exchange structure for dense attribute storage. This structure is
* passed through the v2 B-tree layer when inserting attributes.
*/
typedef struct H5A_bt2_ud_ins_t {
/* downward */
H5A_bt2_ud_common_t common; /* Common info for B-tree user data (must be first) */
const uint8_t *id; /* Heap ID of attribute to insert */
} H5A_bt2_ud_ins_t;
/* Data structure to hold table of attributes for an object */
typedef struct {
size_t nattrs; /* # of attributes in table */
H5A_t *attrs; /* Pointer to array of attributes */
} H5A_attr_table_t;
/* Attribute iteration operator for internal library callbacks */
typedef herr_t (*H5A_lib_iterate_t)(const H5A_t *attr, void *op_data);
/* Describe kind of callback to make for each attribute */
struct H5A_attr_iter_op_t {
enum {
H5A_ATTR_OP_APP, /* Application callback */
H5A_ATTR_OP_LIB /* Library internal callback */
} op_type;
union {
H5A_operator_t app_op; /* Application callback for each attribute */
H5A_lib_iterate_t lib_op; /* Library internal callback for each attribute */
} u;
};
/*****************************/
/* Package Private Variables */
/*****************************/
/* Declare extern the free list for H5A_t's */
H5FL_EXTERN(H5A_t);
/* Declare extern a free list to manage blocks of type conversion data */
H5FL_BLK_EXTERN(attr_buf);
/* The v2 B-tree class for indexing 'name' field on attributes */
H5_DLLVAR const H5B2_class_t H5A_BT2_NAME[1];
/******************************/
/* Package Private Prototypes */
/******************************/
/* Function prototypes for H5A package scope */
H5_DLL herr_t H5A_init(void);
H5_DLL H5A_t *H5A_copy(H5A_t *new_attr, const H5A_t *old_attr);
H5_DLL herr_t H5A_free(H5A_t *attr);
H5_DLL herr_t H5A_close(H5A_t *attr);
/* Attribute "dense" storage routines */
H5_DLL H5A_t *H5A_dense_open(H5F_t *f, hid_t dxpl_id, const H5O_t *oh,
const char *name);
H5_DLL herr_t H5A_dense_write(H5F_t *f, hid_t dxpl_id, const H5O_t *oh,
H5A_t *attr);
H5_DLL herr_t H5A_dense_rename(H5F_t *f, hid_t dxpl_id, const H5O_t *oh,
const char *old_name, const char *new_name);
H5_DLL herr_t H5A_dense_iterate(H5F_t *f, hid_t dxpl_id, hid_t loc_id,
haddr_t attr_fheap_addr, haddr_t name_bt2_addr, H5_iter_order_t order,
unsigned skip, unsigned *last_attr, const H5A_attr_iter_op_t *attr_op,
void *op_data);
H5_DLL herr_t H5A_dense_remove(H5F_t *f, hid_t dxpl_id, const H5O_t *oh,
const char *name);
H5_DLL htri_t H5A_dense_exists(H5F_t *f, hid_t dxpl_id, const H5O_t *oh,
const char *name);
/* Attribute table operations */
H5_DLL herr_t H5A_compact_build_table(H5F_t *f, hid_t dxpl_id, H5O_t *oh,
H5_index_t idx_type, H5_iter_order_t order, H5A_attr_table_t *atable,
unsigned *oh_flags);
H5_DLL herr_t H5A_dense_build_table(H5F_t *f, hid_t dxpl_id, hsize_t nattrs,
haddr_t attr_fheap_addr, haddr_t name_bt2_addr, H5_index_t idx_type,
H5_iter_order_t order, H5A_attr_table_t *atable);
H5_DLL herr_t H5A_attr_iterate_table(const H5A_attr_table_t *atable,
unsigned skip, unsigned *last_attr, hid_t loc_id,
const H5A_attr_iter_op_t *attr_op, void *op_data);
H5_DLL herr_t H5A_attr_release_table(H5A_attr_table_t *atable);
/* Attribute object header routines */
H5_DLL herr_t H5O_attr_reset(void *_mesg);
H5_DLL herr_t H5O_attr_delete(H5F_t *f, hid_t dxpl_id, const void *_mesg, hbool_t adj_link);
H5_DLL herr_t H5O_attr_link(H5F_t *f, hid_t dxpl_id, const void *_mesg);
H5_DLL void *H5O_attr_get_share(const void *_mesg, H5O_shared_t *sh);
H5_DLL htri_t H5O_attr_is_shared(const void *_mesg);
/* Attribute operations */
H5_DLL herr_t H5O_attr_update_shared(H5F_t *f, hid_t dxpl_id, H5A_t *attr,
const H5O_shared_t *sh_mesg);
/* Testing functions */
#ifdef H5A_TESTING
H5_DLL htri_t H5A_is_shared_test(hid_t aid);
H5_DLL herr_t H5A_get_shared_rc_test(hid_t attr_id, hsize_t *ref_count);
#endif /* H5A_TESTING */
#endif /* _H5Apkg_H */
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