/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*-------------------------------------------------------------------------
*
* Created: H5Gprivate.h
* Jul 11 1997
* Robb Matzke
*
* Purpose: Library-visible declarations.
*
*-------------------------------------------------------------------------
*/
#ifndef H5Gprivate_H
#define H5Gprivate_H
/* Include package's public header */
#include "H5Gpublic.h"
/* Private headers needed by this file */
#include "H5private.h" /* Generic Functions */
#include "H5Bprivate.h" /* B-trees */
#include "H5Fprivate.h" /* File access */
#include "H5RSprivate.h" /* Reference-counted strings */
/*
* The disk size for a symbol table entry...
*/
#define H5G_SIZEOF_SCRATCH 16
#define H5G_SIZEOF_ENTRY(sizeof_addr, sizeof_size) \
((sizeof_size) + /*offset of name into heap */ \
(sizeof_addr) + /*address of object header */ \
4 + /*entry type */ \
4 + /*reserved */ \
H5G_SIZEOF_SCRATCH) /*scratch pad space */
#define H5G_SIZEOF_ENTRY_FILE(F) H5G_SIZEOF_ENTRY(H5F_SIZEOF_ADDR(F), H5F_SIZEOF_SIZE(F))
/* ========= Group Creation properties ============ */
/* Defaults for link info values */
#define H5G_CRT_LINFO_TRACK_CORDER FALSE
#define H5G_CRT_LINFO_INDEX_CORDER FALSE
#define H5G_CRT_LINFO_NLINKS 0
#define H5G_CRT_LINFO_MAX_CORDER 0
#define H5G_CRT_LINFO_LINK_FHEAP_ADDR HADDR_UNDEF
#define H5G_CRT_LINFO_NAME_BT2_ADDR HADDR_UNDEF
#define H5G_CRT_LINFO_CORDER_BT2_ADDR HADDR_UNDEF
/* Definitions for link info settings */
#define H5G_CRT_LINK_INFO_NAME "link info"
#define H5G_CRT_LINK_INFO_SIZE sizeof(H5O_linfo_t)
/* clang-format off */
#define H5G_CRT_LINK_INFO_DEF {H5G_CRT_LINFO_TRACK_CORDER, \
H5G_CRT_LINFO_INDEX_CORDER, \
H5G_CRT_LINFO_MAX_CORDER, \
H5G_CRT_LINFO_CORDER_BT2_ADDR, \
H5G_CRT_LINFO_NLINKS, \
H5G_CRT_LINFO_LINK_FHEAP_ADDR, \
H5G_CRT_LINFO_NAME_BT2_ADDR \
}
/* clang-format on */
/* Defaults for group info values */
#define H5G_CRT_GINFO_LHEAP_SIZE_HINT 0
#define H5G_CRT_GINFO_STORE_LINK_PHASE_CHANGE FALSE
#define H5G_CRT_GINFO_MAX_COMPACT 8
#define H5G_CRT_GINFO_MIN_DENSE 6
#define H5G_CRT_GINFO_STORE_EST_ENTRY_INFO FALSE
#define H5G_CRT_GINFO_EST_NUM_ENTRIES 4
#define H5G_CRT_GINFO_EST_NAME_LEN 8
/* Definitions for group info settings */
#define H5G_CRT_GROUP_INFO_NAME "group info"
#define H5G_CRT_GROUP_INFO_SIZE sizeof(H5O_ginfo_t)
/* clang-format off */
#define H5G_CRT_GROUP_INFO_DEF {H5G_CRT_GINFO_LHEAP_SIZE_HINT, \
H5G_CRT_GINFO_STORE_LINK_PHASE_CHANGE, \
H5G_CRT_GINFO_MAX_COMPACT, \
H5G_CRT_GINFO_MIN_DENSE, \
H5G_CRT_GINFO_STORE_EST_ENTRY_INFO, \
H5G_CRT_GINFO_EST_NUM_ENTRIES, \
H5G_CRT_GINFO_EST_NAME_LEN \
}
/* clang-format on */
/* If the module using this macro is allowed access to the private variables, access them directly */
#ifdef H5G_MODULE
#define H5G_MOUNTED(G) ((G)->shared->mounted)
#else /* H5G_MODULE */
#define H5G_MOUNTED(G) (H5G_mounted(G))
#endif /* H5G_MODULE */
/*
* During name lookups (see H5G_traverse()) we sometimes want information about
* a symbolic link or a mount point. The normal operation is to follow the
* symbolic link or mount point and return information about its target.
*/
#define H5G_TARGET_NORMAL 0x0000
#define H5G_TARGET_SLINK 0x0001
#define H5G_TARGET_MOUNT 0x0002
#define H5G_TARGET_UDLINK 0x0004
#define H5G_TARGET_EXISTS 0x0008
#define H5G_CRT_INTMD_GROUP 0x0010
/* Type of operation being performed for call to H5G_name_replace() */
typedef enum {
H5G_NAME_MOVE = 0, /* H5*move call */
H5G_NAME_DELETE, /* H5Ldelete call */
H5G_NAME_MOUNT, /* H5Fmount call */
H5G_NAME_UNMOUNT /* H5Funmount call */
} H5G_names_op_t;
/* Status returned from traversal callbacks; whether the object location
* or group location need to be closed */
#define H5G_OWN_NONE 0
#define H5G_OWN_OBJ_LOC 1
#define H5G_OWN_GRP_LOC 2
#define H5G_OWN_BOTH 3
typedef int H5G_own_loc_t;
/* Structure to store information about the name an object was opened with */
typedef struct H5G_name_t {
H5RS_str_t *full_path_r; /* Path to object, as seen from root of current file mounting hierarchy */
H5RS_str_t *user_path_r; /* Path to object, as opened by user */
unsigned obj_hidden; /* Whether the object is visible in group hier. */
} H5G_name_t;
/* Forward declarations (for prototypes & struct definitions) */
struct H5O_loc_t;
struct H5O_link_t;
/*
* The "location" of an object in a group hierarchy. This points to an object
* location and a group hierarchy path for the object.
*/
typedef struct H5G_loc_t {
struct H5O_loc_t *oloc; /* Object header location */
H5G_name_t * path; /* Group hierarchy path */
} H5G_loc_t;
/* Typedef for path traversal operations */
/* grp_loc is the location of the group in which the targeted object is located.
* name is the last component of the object's name
* lnk is the link between the group and the object
* obj_loc is the target of the traversal (or NULL if the object doesn't exist)
* operator_data is whatever udata was supplied when H5G_traverse was called
* own_loc should be set to H5G_OWN_OBJ_LOC if this callback takes ownership of obj_loc,
* H5G_OWN_GRP_LOC if it takes ownership of grp_loc, and H5G_OWN_NONE if obj_loc and
* grp_loc need to be deleted.
*/
typedef herr_t (*H5G_traverse_t)(H5G_loc_t *grp_loc /*in*/, const char *name,
const struct H5O_link_t *lnk /*in*/, H5G_loc_t *obj_loc /*out*/,
void *operator_data /*in,out*/, H5G_own_loc_t *own_loc /*out*/);
/* Describe kind of callback to make for each link */
typedef enum H5G_link_iterate_op_type_t {
#ifndef H5_NO_DEPRECATED_SYMBOLS
H5G_LINK_OP_OLD, /* "Old" application callback */
#endif /* H5_NO_DEPRECATED_SYMBOLS */
H5G_LINK_OP_NEW /* "New" application callback */
} H5G_link_iterate_op_type_t;
typedef struct {
H5G_link_iterate_op_type_t op_type;
union {
#ifndef H5_NO_DEPRECATED_SYMBOLS
H5G_iterate_t op_old; /* "Old" application callback for each link */
#endif /* H5_NO_DEPRECATED_SYMBOLS */
H5L_iterate2_t op_new; /* "New" application callback for each link */
} op_func;
} H5G_link_iterate_t;
typedef struct H5G_t H5G_t;
typedef struct H5G_shared_t H5G_shared_t;
typedef struct H5G_entry_t H5G_entry_t;
/*
* Library prototypes... These are the ones that other packages routinely
* call.
*/
H5_DLL herr_t H5G_init(void);
H5_DLL struct H5O_loc_t *H5G_oloc(H5G_t *grp);
H5_DLL H5G_name_t *H5G_nameof(H5G_t *grp);
H5_DLL H5F_t *H5G_fileof(H5G_t *grp);
H5_DLL H5G_t * H5G_open(const H5G_loc_t *loc);
H5_DLL herr_t H5G_close(H5G_t *grp);
H5_DLL herr_t H5G_get_shared_count(H5G_t *grp);
H5_DLL herr_t H5G_mount(H5G_t *grp);
H5_DLL hbool_t H5G_mounted(H5G_t *grp);
H5_DLL herr_t H5G_unmount(H5G_t *grp);
#ifndef H5_NO_DEPRECATED_SYMBOLS
H5_DLL H5G_obj_t H5G_map_obj_type(H5O_type_t obj_type);
#endif /* H5_NO_DEPRECATED_SYMBOLS */
/*
* Utility functions
*/
H5_DLL char *H5G_normalize(const char *name);
/*
* Group hierarchy traversal routines
*/
H5_DLL herr_t H5G_traverse(const H5G_loc_t *loc, const char *name, unsigned target, H5G_traverse_t op,
void *op_data);
H5_DLL herr_t H5G_iterate(H5G_loc_t *loc, const char *group_name, H5_index_t idx_type, H5_iter_order_t order,
hsize_t skip, hsize_t *last_lnk, const H5G_link_iterate_t *lnk_op, void *op_data);
H5_DLL herr_t H5G_visit(H5G_loc_t *loc, const char *group_name, H5_index_t idx_type, H5_iter_order_t order,
H5L_iterate2_t op, void *op_data);
/*
* Functions that understand links in groups
*/
H5_DLL herr_t H5G_link_to_info(const struct H5O_loc_t *link_loc, const struct H5O_link_t *lnk,
H5L_info2_t *linfo);
/*
* Functions that understand group objects
*/
H5_DLL herr_t H5G_obj_insert(const struct H5O_loc_t *grp_oloc, const char *name, struct H5O_link_t *obj_lnk,
hbool_t adj_link, H5O_type_t obj_type, const void *crt_info);
H5_DLL herr_t H5G_obj_get_name_by_idx(const struct H5O_loc_t *oloc, H5_index_t idx_type,
H5_iter_order_t order, hsize_t n, char *name, size_t name_size,
size_t *name_len);
H5_DLL herr_t H5G_obj_remove(const struct H5O_loc_t *oloc, H5RS_str_t *grp_full_path_r, const char *name);
H5_DLL herr_t H5G_obj_remove_by_idx(const struct H5O_loc_t *grp_oloc, H5RS_str_t *grp_full_path_r,
H5_index_t idx_type, H5_iter_order_t order, hsize_t n);
H5_DLL herr_t H5G_obj_lookup_by_idx(const struct H5O_loc_t *grp_oloc, H5_index_t idx_type,
H5_iter_order_t order, hsize_t n, struct H5O_link_t *lnk);
H5_DLL hid_t H5G_get_create_plist(const H5G_t *grp);
/*
* These functions operate on symbol table nodes.
*/
H5_DLL herr_t H5G_node_close(const H5F_t *f);
H5_DLL herr_t H5G_node_debug(H5F_t *f, haddr_t addr, FILE *stream, int indent, int fwidth, haddr_t heap);
/*
* These functions operate on group object locations.
*/
H5_DLL herr_t H5G_ent_encode(const H5F_t *f, uint8_t **pp, const H5G_entry_t *ent);
H5_DLL herr_t H5G_ent_decode(const H5F_t *f, const uint8_t **pp, H5G_entry_t *ent);
/*
* These functions operate on group hierarchy names.
*/
H5_DLL herr_t H5G_name_set(const H5G_name_t *loc, H5G_name_t *obj, const char *name);
H5_DLL herr_t H5G_name_replace(const struct H5O_link_t *lnk, H5G_names_op_t op, H5F_t *src_file,
H5RS_str_t *src_full_path_r, H5F_t *dst_file, H5RS_str_t *dst_full_path_r);
H5_DLL herr_t H5G_name_reset(H5G_name_t *name);
H5_DLL herr_t H5G_name_copy(H5G_name_t *dst, const H5G_name_t *src, H5_copy_depth_t depth);
H5_DLL herr_t H5G_name_free(H5G_name_t *name);
H5_DLL herr_t H5G_get_name(const H5G_loc_t *loc, char *name /*out*/, size_t size, size_t *name_len,
hbool_t *cached);
H5_DLL herr_t H5G_get_name_by_addr(H5F_t *f, const struct H5O_loc_t *loc, char *name, size_t size,
size_t *name_len);
H5_DLL H5RS_str_t *H5G_build_fullpath_refstr_str(H5RS_str_t *path_r, const char *name);
/*
* These functions operate on group "locations"
*/
H5_DLL herr_t H5G_loc_real(void *obj, H5I_type_t type, H5G_loc_t *loc);
H5_DLL herr_t H5G_loc(hid_t loc_id, H5G_loc_t *loc);
H5_DLL herr_t H5G_loc_copy(H5G_loc_t *dst, const H5G_loc_t *src, H5_copy_depth_t depth);
H5_DLL herr_t H5G_loc_find(const H5G_loc_t *loc, const char *name, H5G_loc_t *obj_loc /*out*/);
H5_DLL herr_t H5G_loc_find_by_idx(const H5G_loc_t *loc, const char *group_name, H5_index_t idx_type,
H5_iter_order_t order, hsize_t n, H5G_loc_t *obj_loc /*out*/);
H5_DLL herr_t H5G_loc_exists(const H5G_loc_t *loc, const char *name, hbool_t *exists);
H5_DLL herr_t H5G_loc_info(const H5G_loc_t *loc, const char *name, H5O_info2_t *oinfo /*out*/,
unsigned fields);
H5_DLL herr_t H5G_loc_native_info(const H5G_loc_t *loc, const char *name, H5O_native_info_t *oinfo /*out*/,
unsigned fields);
H5_DLL herr_t H5G_loc_set_comment(const H5G_loc_t *loc, const char *name, const char *comment);
H5_DLL herr_t H5G_loc_get_comment(const H5G_loc_t *loc, const char *name, char *comment /*out*/,
size_t bufsize, size_t *comment_len);
H5_DLL herr_t H5G_loc_reset(H5G_loc_t *loc);
H5_DLL herr_t H5G_loc_free(H5G_loc_t *loc);
/*
* These functions operate on the root group
*/
H5_DLL herr_t H5G_mkroot(H5F_t *f, hbool_t create_root);
H5_DLL herr_t H5G_root_loc(H5F_t *f, H5G_loc_t *loc);
H5_DLL herr_t H5G_root_free(H5G_t *grp);
H5_DLL H5G_t *H5G_rootof(H5F_t *f);
#endif /* H5Gprivate_H */