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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. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*-----------------------------------------------------------------------------
* File: H5Iprivate.h
* Purpose: header file for ID API
*---------------------------------------------------------------------------*/
/* avoid re-inclusion */
#ifndef _H5Iprivate_H
#define _H5Iprivate_H
#include "H5Ipublic.h" /*include Public Definitions */
/* Private headers needed by this file */
#include "H5private.h"
/* Default sizes of the hash-tables for various atom groups */
#define H5I_ERRSTACK_HASHSIZE 64
#define H5I_FILEID_HASHSIZE 64
#define H5I_TEMPID_HASHSIZE 64
#define H5I_DATATYPEID_HASHSIZE 64
#define H5I_DATASPACEID_HASHSIZE 64
#define H5I_DATASETID_HASHSIZE 64
#define H5I_OID_HASHSIZE 64
#define H5I_GROUPID_HASHSIZE 64
#define H5I_ATTRID_HASHSIZE 64
#define H5I_TEMPBUFID_HASHSIZE 64
#define H5I_REFID_HASHSIZE 64
#define H5I_VFL_HASHSIZE 64
#define H5I_GENPROPCLS_HASHSIZE 64
#define H5I_GENPROPOBJ_HASHSIZE 128
/*
* Function for freeing objects. This function will be called with an object
* ID group number (object type) and a pointer to the object. The function
* should free the object and return non-negative to indicate that the object
* can be removed from the ID group. If the function returns negative
* (failure) then the object will remain in the ID group.
*/
typedef herr_t (*H5I_free_t)(void*);
/* Type of the function to compare objects & keys */
typedef int (*H5I_search_func_t)(void *obj, const void *key);
/* Atom information structure used */
typedef struct H5I_id_info_t {
hid_t id; /* ID for this info */
unsigned count; /* ref. count for this atom */
void *obj_ptr; /* pointer associated with the atom */
struct H5I_id_info_t *next; /* link to next atom (in case of hash-clash)*/
} H5I_id_info_t;
/* ID group structure used */
typedef struct {
unsigned count; /*# of times this group has been initialized*/
unsigned reserved; /*# of IDs to reserve for constant IDs */
unsigned wrapped; /*whether the id count has wrapped around */
size_t hash_size; /*sizeof the hash table to store the IDs in */
unsigned ids; /*current number of IDs held */
unsigned nextid; /*ID to use for the next atom */
H5I_free_t free_func; /*release object method */
H5I_id_info_t **id_list; /*pointer to an array of ptrs to IDs */
} H5I_id_group_t;
/* Private Functions in H5I.c */
__DLL__ int H5I_init_group(H5I_type_t grp, size_t hash_size, unsigned reserved,
H5I_free_t func);
__DLL__ int H5I_nmembers(H5I_type_t grp);
__DLL__ herr_t H5I_clear_group(H5I_type_t grp, hbool_t force);
__DLL__ herr_t H5I_destroy_group(H5I_type_t grp);
__DLL__ hid_t H5I_register(H5I_type_t grp, void *object);
__DLL__ void *H5I_object(hid_t id);
__DLL__ H5I_type_t H5I_get_type(hid_t id);
__DLL__ void *H5I_remove(hid_t id);
__DLL__ void *H5I_search(H5I_type_t grp, H5I_search_func_t func,
const void *key);
__DLL__ int H5I_inc_ref(hid_t id);
__DLL__ int H5I_dec_ref(hid_t id);
#endif
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