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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 COPYING file, which can be found at the root of the source code *
* distribution tree, or in https://www.hdfgroup.org/licenses. *
* 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 H5L module
* for dealing with links in an HDF5 file.
*/
#ifndef H5Lprivate_H
#define H5Lprivate_H
/* Include package's public header */
#include "H5Lpublic.h"
/* Private headers needed by this file */
#include "H5Gprivate.h" /* Groups */
#include "H5Oprivate.h" /* Object headers */
/**************************/
/* Library Private Macros */
/**************************/
/* Default number of soft links to traverse */
#define H5L_NUM_LINKS 16
/* ======== Link creation property names ======== */
#define H5L_CRT_INTERMEDIATE_GROUP_NAME "intermediate_group" /* Create intermediate groups flag */
/* ======== Link access property names ======== */
/* Number of soft links to traverse */
#define H5L_ACS_NLINKS_NAME "max soft links"
/* External link prefix */
#define H5L_ACS_ELINK_PREFIX_NAME "external link prefix"
/* file access property list for external link access */
#define H5L_ACS_ELINK_FAPL_NAME "external link fapl"
/* file access flags for external link traversal */
#define H5L_ACS_ELINK_FLAGS_NAME "external link flags"
/* callback function for external link traversal */
#define H5L_ACS_ELINK_CB_NAME "external link callback"
/****************************/
/* Library Private Typedefs */
/****************************/
/* User data for path traversal routine for getting link value by index */
typedef struct {
/* In */
H5_index_t idx_type; /* Index to use */
H5_iter_order_t order; /* Order to iterate in index */
hsize_t n; /* Offset of link within index */
size_t size; /* Size of user buffer */
/* Out */
void *buf; /* User buffer */
} H5L_trav_gvbi_t;
/* User data for path traversal routine for getting link info by index */
typedef struct {
/* In */
H5_index_t idx_type; /* Index to use */
H5_iter_order_t order; /* Order to iterate in index */
hsize_t n; /* Offset of link within index */
/* Out */
H5L_info2_t *linfo; /* Buffer to return to user */
} H5L_trav_gibi_t;
/* User data for path traversal routine for getting name by index */
typedef struct {
/* In */
H5_index_t idx_type; /* Index to use */
H5_iter_order_t order; /* Order to iterate in index */
hsize_t n; /* Offset of link within index */
size_t size; /* Size of name buffer */
/* Out */
char * name; /* Buffer to return name to user */
ssize_t name_len; /* Length of full name */
} H5L_trav_gnbi_t;
/* User data for path traversal routine for removing link by index */
typedef struct {
/* In */
H5_index_t idx_type; /* Index to use */
H5_iter_order_t order; /* Order to iterate in index */
hsize_t n; /* Offset of link within index */
} H5L_trav_rmbi_t;
/* Structure for external link traversal callback property */
typedef struct H5L_elink_cb_t {
H5L_elink_traverse_t func;
void * user_data;
} H5L_elink_cb_t;
/*****************************/
/* Library Private Variables */
/*****************************/
/******************************/
/* Library Private Prototypes */
/******************************/
/* General operations on links */
H5_DLL herr_t H5L_init(void);
H5_DLL herr_t H5L_link(const H5G_loc_t *new_loc, const char *new_name, H5G_loc_t *obj_loc, hid_t lcpl_id);
H5_DLL herr_t H5L_link_object(const H5G_loc_t *new_loc, const char *new_name, H5O_obj_create_t *ocrt_info,
hid_t lcpl_id);
H5_DLL herr_t H5L_exists_tolerant(const H5G_loc_t *loc, const char *name, hbool_t *exists);
H5_DLL herr_t H5L_get_info(const H5G_loc_t *loc, const char *name, H5L_info2_t *linkbuf /*out*/);
H5_DLL herr_t H5L_register_external(void);
H5_DLL herr_t H5L_iterate(H5G_loc_t *loc, const char *group_name, H5_index_t idx_type, H5_iter_order_t order,
hsize_t *idx_p, H5L_iterate2_t op, void *op_data);
/* User-defined link functions */
H5_DLL herr_t H5L_register(const H5L_class_t *cls);
H5_DLL herr_t H5L_unregister(H5L_type_t id);
H5_DLL const H5L_class_t *H5L_find_class(H5L_type_t id);
#endif /* H5Lprivate_H */
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