mirror of
https://github.com/HDFGroup/hdf5.git
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193 lines
7.8 KiB
C
193 lines
7.8 KiB
C
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Copyright by The HDF Group. *
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* All rights reserved. *
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* *
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* This file is part of HDF5. The full HDF5 copyright notice, including *
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* terms governing use, modification, and redistribution, is contained in *
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* the COPYING file, which can be found at the root of the source code *
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* distribution tree, or in https://www.hdfgroup.org/licenses. *
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* If you do not have access to either file, you may request a copy from *
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* help@hdfgroup.org. *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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#ifndef H5TRAV_H
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#define H5TRAV_H
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#include "hdf5.h"
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/* Typedefs for visiting objects */
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typedef herr_t (*h5trav_obj_func_t)(const char *path_name, const H5O_info2_t *oinfo, const char *first_seen,
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void *udata);
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typedef herr_t (*h5trav_lnk_func_t)(const char *path_name, const H5L_info2_t *linfo, void *udata);
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/*-------------------------------------------------------------------------
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* public enum to specify type of an object
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* the TYPE can be:
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* H5TRAV_TYPE_UNKNOWN = -1,
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* H5TRAV_TYPE_GROUP, Object is a group
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* H5TRAV_TYPE_DATASET, Object is a dataset
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* H5TRAV_TYPE_TYPE, Object is a named datatype
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* H5TRAV_TYPE_LINK, Object is a symbolic link
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* H5TRAV_TYPE_UDLINK, Object is a user-defined link
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*-------------------------------------------------------------------------
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*/
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typedef enum {
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H5TRAV_TYPE_UNKNOWN = -1, /* Unknown object type */
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H5TRAV_TYPE_GROUP, /* Object is a group */
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H5TRAV_TYPE_DATASET, /* Object is a dataset */
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H5TRAV_TYPE_NAMED_DATATYPE, /* Object is a named datatype */
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H5TRAV_TYPE_LINK, /* Object is a symbolic link */
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H5TRAV_TYPE_UDLINK /* Object is a user-defined link */
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} h5trav_type_t;
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/*-------------------------------------------------------------------------
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* public struct to store name and type of an object
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*-------------------------------------------------------------------------
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*/
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/* Struct to keep track of symbolic link targets visited.
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* Functions: symlink_visit_add() and symlink_is_visited()
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*/
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typedef struct symlink_trav_path_t {
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H5L_type_t type;
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char *file;
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char *path;
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} symlink_trav_path_t;
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typedef struct symlink_trav_t {
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size_t nalloc;
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size_t nused;
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symlink_trav_path_t *objs;
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bool dangle_link;
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} symlink_trav_t;
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typedef struct trav_path_t {
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char *path;
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h5trav_type_t type;
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H5O_token_t obj_token; /* object token */
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unsigned long fileno; /* File number that object is located in */
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} trav_path_t;
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typedef struct trav_info_t {
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size_t nalloc;
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size_t nused;
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const char *fname;
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hid_t fid; /* File ID */
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trav_path_t *paths;
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symlink_trav_t symlink_visited; /* already visited symbolic links */
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void *opts; /* optional data passing */
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} trav_info_t;
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/*-------------------------------------------------------------------------
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* keep record of hard link information
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*-------------------------------------------------------------------------
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*/
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typedef struct trav_link_t {
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char *new_name;
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} trav_link_t;
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/*-------------------------------------------------------------------------
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* struct to store basic info needed for the h5trav table traversal algorithm
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*-------------------------------------------------------------------------
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*/
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typedef struct trav_obj_t {
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H5O_token_t obj_token; /* object token */
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unsigned flags[2]; /* h5diff.object is present or not in both files*/
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bool is_same_trgobj; /* same target object? no need to compare */
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char *name; /* name */
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h5trav_type_t type; /* type of object */
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trav_link_t *links; /* array of possible link names */
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size_t sizelinks; /* size of links array */
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size_t nlinks; /* number of links */
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} trav_obj_t;
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/*-------------------------------------------------------------------------
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* private struct that stores all objects
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*-------------------------------------------------------------------------
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*/
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typedef struct trav_table_t {
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hid_t fid;
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size_t size;
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size_t nobjs;
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trav_obj_t *objs;
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} trav_table_t;
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/*-------------------------------------------------------------------------
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* public functions
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*-------------------------------------------------------------------------
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*-------------------------------------------------------------------------
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* "h5trav general" public functions
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*-------------------------------------------------------------------------
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*/
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H5TOOLS_DLL void h5trav_set_index(H5_index_t print_index_by, H5_iter_order_t print_index_order);
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H5TOOLS_DLL int h5trav_visit(hid_t file_id, const char *grp_name, bool visit_start, bool recurse,
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h5trav_obj_func_t visit_obj, h5trav_lnk_func_t visit_lnk, void *udata,
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unsigned fields);
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H5TOOLS_DLL herr_t symlink_visit_add(symlink_trav_t *visited, H5L_type_t type, const char *file,
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const char *path);
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H5TOOLS_DLL bool symlink_is_visited(symlink_trav_t *visited, H5L_type_t type, const char *file,
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const char *path);
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/*-------------------------------------------------------------------------
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* "h5trav info" public functions
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*-------------------------------------------------------------------------
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*/
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H5TOOLS_DLL int h5trav_getinfo(hid_t file_id, trav_info_t *info);
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H5TOOLS_DLL ssize_t h5trav_getindex(const trav_info_t *info, const char *obj);
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H5TOOLS_DLL int trav_info_visit_obj(const char *path, const H5O_info2_t *oinfo, const char *already_visited,
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void *udata);
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H5TOOLS_DLL int trav_info_visit_lnk(const char *path, const H5L_info2_t *linfo, void *udata);
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/*-------------------------------------------------------------------------
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* "h5trav table" public functions
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*-------------------------------------------------------------------------
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*/
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H5TOOLS_DLL int h5trav_gettable(hid_t fid, trav_table_t *travt);
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H5TOOLS_DLL int h5trav_getindext(const char *obj, const trav_table_t *travt);
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/*-------------------------------------------------------------------------
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* "h5trav print" public functions
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*-------------------------------------------------------------------------
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*/
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H5TOOLS_DLL int h5trav_print(hid_t fid);
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H5TOOLS_DLL void h5trav_set_verbose(int print_verbose);
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#ifdef __cplusplus
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}
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#endif
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/*-------------------------------------------------------------------------
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* info private functions
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*-------------------------------------------------------------------------
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*/
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H5TOOLS_DLL void trav_info_init(const char *filename, hid_t fileid, trav_info_t **info);
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H5TOOLS_DLL void trav_info_free(trav_info_t *info);
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H5TOOLS_DLL void trav_info_add(trav_info_t *info, const char *path, h5trav_type_t obj_type);
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H5TOOLS_DLL void trav_fileinfo_add(trav_info_t *info, hid_t loc_id);
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/*-------------------------------------------------------------------------
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* table private functions
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*-------------------------------------------------------------------------
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*/
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H5TOOLS_DLL void trav_table_init(hid_t fid, trav_table_t **table);
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H5TOOLS_DLL void trav_table_free(trav_table_t *table);
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H5TOOLS_DLL void trav_table_addflags(const unsigned *flags, char *objname, h5trav_type_t type,
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trav_table_t *table);
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#endif /* H5TRAV_H */
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