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/****************************************************************************
* 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. *
* *
****************************************************************************/
/*-----------------------------------------------------------------------------
* 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_RAGGED_HASHSIZE 64
#define H5I_REFID_HASHSIZE 64
/*
* 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 intn (*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 */
uintn 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 {
uintn count; /*# of times this group has been initialized*/
uintn reserved; /*# of IDs to reserve for constant IDs */
uintn wrapped; /*whether the id count has wrapped around */
size_t hash_size; /*sizeof the hash table to store the IDs in */
uintn ids; /*current number of IDs held */
uintn 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__ intn H5I_init_group(H5I_type_t grp, size_t hash_size, uintn reserved,
H5I_free_t func);
__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__ intn H5I_dec_ref(hid_t id);
#endif
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