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hdf5/tools/lib/h5trav.c

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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://support.hdfgroup.org/ftp/HDF5/releases. *
* If you do not have access to either file, you may request a copy from *
* help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#include "h5trav.h"
#include "h5tools.h"
#include "H5private.h"
/*-------------------------------------------------------------------------
* local typedefs
*-------------------------------------------------------------------------
*/
typedef struct trav_addr_path_t {
haddr_t addr;
char *path;
} trav_addr_path_t;
typedef struct trav_addr_t {
size_t nalloc;
size_t nused;
trav_addr_path_t *objs;
} trav_addr_t;
typedef struct {
h5trav_obj_func_t visit_obj; /* Callback for visiting objects */
h5trav_lnk_func_t visit_lnk; /* Callback for visiting links */
void *udata; /* User data to pass to callbacks */
} trav_visitor_t;
typedef struct {
trav_addr_t *seen; /* List of addresses seen already */
const trav_visitor_t *visitor; /* Information for visiting each link/object */
hbool_t is_absolute; /* Whether the traversal has absolute paths */
const char *base_grp_name; /* Name of the group that serves as the base
* for iteration */
unsigned fields; /* Fields needed in H5O_info_t struct */
} trav_ud_traverse_t;
typedef struct {
hid_t fid; /* File ID being traversed */
} trav_print_udata_t;
typedef struct trav_path_op_data_t {
const char *path;
} trav_path_op_data_t;
/* format for hsize_t */
#ifdef H5TRAV_PRINT_SPACE
#define HSIZE_T_FORMAT "%" H5_PRINTF_LL_WIDTH "u"
#endif /* H5TRAV_PRINT_SPACE */
/*-------------------------------------------------------------------------
* local functions
*-------------------------------------------------------------------------
*/
static void trav_table_add(trav_table_t *table,
const char *objname,
const H5O_info_t *oinfo);
static void trav_table_addlink(trav_table_t *table,
haddr_t objno,
const char *path);
/*-------------------------------------------------------------------------
* local variables
*-------------------------------------------------------------------------
*/
static H5_index_t trav_index_by = H5_INDEX_NAME;
static H5_iter_order_t trav_index_order = H5_ITER_INC;
static int trav_verbosity = 0;
/*-------------------------------------------------------------------------
* Function: h5trav_set_index
*
* Purpose: Set indexing properties for the objects & links in the file
*
* Return: none
*-------------------------------------------------------------------------
*/
void
h5trav_set_index(H5_index_t print_index_by, H5_iter_order_t print_index_order)
{
trav_index_by = print_index_by;
trav_index_order = print_index_order;
}
/*-------------------------------------------------------------------------
* Function: h5trav_set_verbose
*
* Purpose: Set verbosity of file contents 1=>attributes
*
* Return: none
*-------------------------------------------------------------------------
*/
void
h5trav_set_verbose(int print_verbose)
{
trav_verbosity = print_verbose;
}
/*-------------------------------------------------------------------------
* "h5trav info" public functions. used in h5diff
*-------------------------------------------------------------------------
*/
/*-------------------------------------------------------------------------
* Function: trav_addr_add
*
* Purpose: Add a hardlink address to visited data structure
*
* Return: void
*-------------------------------------------------------------------------
*/
static void
trav_addr_add(trav_addr_t *visited, haddr_t addr, const char *path)
{
size_t idx; /* Index of address to use */
/* Allocate space if necessary */
if(visited->nused == visited->nalloc) {
visited->nalloc = MAX(1, visited->nalloc * 2);;
visited->objs = (trav_addr_path_t *)HDrealloc(visited->objs, visited->nalloc * sizeof(trav_addr_path_t));
} /* end if */
/* Append it */
idx = visited->nused++;
visited->objs[idx].addr = addr;
visited->objs[idx].path = HDstrdup(path);
} /* end trav_addr_add() */
/*-------------------------------------------------------------------------
* Function: trav_addr_visited
*
* Purpose: Check if an address has already been visited
*
* Return: TRUE/FALSE
*-------------------------------------------------------------------------
*/
H5_ATTR_PURE static const char *
trav_addr_visited(trav_addr_t *visited, haddr_t addr)
{
size_t u; /* Local index variable */
/* Look for address */
for(u = 0; u < visited->nused; u++)
/* Check for address already in array */
if(visited->objs[u].addr == addr)
return(visited->objs[u].path);
/* Didn't find address */
return(NULL);
} /* end trav_addr_visited() */
/*-------------------------------------------------------------------------
* Function: traverse_cb
*
* Purpose: Iterator callback for traversing objects in file
*-------------------------------------------------------------------------
*/
static herr_t
traverse_cb(hid_t loc_id, const char *path, const H5L_info_t *linfo,
void *_udata)
{
trav_ud_traverse_t *udata = (trav_ud_traverse_t *)_udata; /* User data */
char *new_name = NULL;
const char *full_name;
const char *already_visited = NULL; /* Whether the link/object was already visited */
/* Create the full path name for the link */
if(udata->is_absolute) {
size_t base_len = HDstrlen(udata->base_grp_name);
size_t add_slash = base_len ? ((udata->base_grp_name)[base_len - 1] != '/') : 1;
size_t new_name_len = base_len + add_slash + HDstrlen(path) + 1 + 3; /* Extra "+3" to quiet GCC warning - 2019/07/05, QAK */
if(NULL == (new_name = (char*)HDmalloc(new_name_len)))
return(H5_ITER_ERROR);
if(add_slash)
HDsnprintf(new_name, new_name_len, "%s/%s", udata->base_grp_name, path);
else
HDsnprintf(new_name, new_name_len, "%s%s", udata->base_grp_name, path);
full_name = new_name;
} /* end if */
else
full_name = path;
/* Perform the correct action for different types of links */
if(linfo->type == H5L_TYPE_HARD) {
H5O_info_t oinfo;
/* Get information about the object */
if(H5Oget_info_by_name2(loc_id, path, &oinfo, udata->fields, H5P_DEFAULT) < 0) {
if(new_name)
HDfree(new_name);
return(H5_ITER_ERROR);
} /* end if */
/* If the object has multiple links, add it to the list of addresses
* already visited, if it isn't there already
*/
if(oinfo.rc > 1)
if(NULL == (already_visited = trav_addr_visited(udata->seen, oinfo.addr)))
trav_addr_add(udata->seen, oinfo.addr, full_name);
/* Make 'visit object' callback */
if(udata->visitor->visit_obj)
if((*udata->visitor->visit_obj)(full_name, &oinfo, already_visited, udata->visitor->udata) < 0) {
if(new_name)
HDfree(new_name);
return(H5_ITER_ERROR);
} /* end if */
} /* end if */
else {
/* Make 'visit link' callback */
if(udata->visitor->visit_lnk)
if((*udata->visitor->visit_lnk)(full_name, linfo, udata->visitor->udata) < 0) {
if(new_name)
HDfree(new_name);
return(H5_ITER_ERROR);
} /* end if */
} /* end else */
if(new_name)
HDfree(new_name);
return(H5_ITER_CONT);
} /* end traverse_cb() */
/*-------------------------------------------------------------------------
* Function: traverse
*
* Purpose: Iterate over all the objects/links in a file. Conforms to the
* "visitor" pattern.
*
* Return: 0 on success,
* -1 on failure
*-------------------------------------------------------------------------
*/
static int
traverse(hid_t file_id, const char *grp_name, hbool_t visit_start,
hbool_t recurse, const trav_visitor_t *visitor, unsigned fields)
{
H5O_info_t oinfo; /* Object info for starting group */
int ret_value = 0;
/* Get info for starting object */
if(H5Oget_info_by_name2(file_id, grp_name, &oinfo, fields, H5P_DEFAULT) < 0)
H5TOOLS_GOTO_ERROR((-1), "H5Oget_info_by_name failed");
/* Visit the starting object */
if(visit_start && visitor->visit_obj)
(*visitor->visit_obj)(grp_name, &oinfo, NULL, visitor->udata);
/* Go visiting, if the object is a group */
if(oinfo.type == H5O_TYPE_GROUP) {
trav_addr_t seen; /* List of addresses seen */
trav_ud_traverse_t udata; /* User data for iteration callback */
/* Init addresses seen */
seen.nused = seen.nalloc = 0;
seen.objs = NULL;
/* Check for multiple links to top group */
if(oinfo.rc > 1)
trav_addr_add(&seen, oinfo.addr, grp_name);
/* Set up user data structure */
udata.seen = &seen;
udata.visitor = visitor;
udata.is_absolute = (*grp_name == '/');
udata.base_grp_name = grp_name;
udata.fields = fields;
/* Check for iteration of links vs. visiting all links recursively */
if(recurse) {
/* Visit all links in group, recursively */
if(H5Lvisit_by_name(file_id, grp_name, trav_index_by, trav_index_order, traverse_cb, &udata, H5P_DEFAULT) < 0)
H5TOOLS_GOTO_ERROR((-1), "H5Lvisit_by_name failed");
} /* end if */
else {
/* Iterate over links in group */
if(H5Literate_by_name(file_id, grp_name, trav_index_by, trav_index_order, NULL, traverse_cb, &udata, H5P_DEFAULT) < 0)
H5TOOLS_GOTO_ERROR((-1), "H5Literate_by_name failed");
} /* end else */
/* Free visited addresses table */
if(seen.objs) {
size_t u; /* Local index variable */
/* Free paths to objects */
for(u = 0; u < seen.nused; u++)
HDfree(seen.objs[u].path);
HDfree(seen.objs);
} /* end if */
} /* end if */
done:
return ret_value;
}
/*-------------------------------------------------------------------------
* Function: trav_info_add
*
* Purpose: Add a link path & type to info struct
*
* Return: void
*-------------------------------------------------------------------------
*/
void
trav_info_add(trav_info_t *info, const char *path, h5trav_type_t obj_type)
{
size_t idx; /* Index of address to use */
if (info) {
/* Allocate space if necessary */
if(info->nused == info->nalloc) {
info->nalloc = MAX(1, info->nalloc * 2);;
info->paths = (trav_path_t *)HDrealloc(info->paths, info->nalloc * sizeof(trav_path_t));
} /* end if */
/* Append it */
idx = info->nused++;
info->paths[idx].path = HDstrdup(path);
info->paths[idx].type = obj_type;
info->paths[idx].fileno = 0;
info->paths[idx].objno = HADDR_UNDEF;
}
} /* end trav_info_add() */
/*-------------------------------------------------------------------------
* Function: trav_fileinfo_add
*
* Purpose: Add a file addr & fileno to info struct
*
* Return: void
*-------------------------------------------------------------------------
*/
void
trav_fileinfo_add(trav_info_t *info, hid_t loc_id)
{
H5O_info_t oinfo;
size_t idx = info->nused - 1;
if ( info->paths[idx].path && HDstrcmp(info->paths[idx].path, "."))
H5Oget_info_by_name2(loc_id, info->paths[idx].path, &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
else
H5Oget_info2(loc_id, &oinfo, H5O_INFO_BASIC);
info->paths[idx].objno = oinfo.addr;
info->paths[idx].fileno = oinfo.fileno;
} /* end trav_fileinfo_add() */
/*-------------------------------------------------------------------------
* Function: trav_info_visit_obj
*
* Purpose: Callback for visiting object, with 'info' structure
*
* Return: 0 on success,
* -1 on failure
*-------------------------------------------------------------------------
*/
int
trav_info_visit_obj(const char *path, const H5O_info_t *oinfo,
const char H5_ATTR_UNUSED *already_visited, void *udata)
{
size_t idx;
trav_info_t *info_p;
/* Add the object to the 'info' struct */
/* (object types map directly to "traversal" types) */
trav_info_add((trav_info_t *)udata, path, (h5trav_type_t)oinfo->type);
/* set object addr and fileno. These are for checking same object */
info_p = (trav_info_t *) udata;
idx = info_p->nused - 1;
info_p->paths[idx].objno = oinfo->addr;
info_p->paths[idx].fileno = oinfo->fileno;
return(0);
} /* end trav_info_visit_obj() */
/*-------------------------------------------------------------------------
* Function: trav_info_visit_lnk
*
* Purpose: Callback for visiting link, with 'info' structure
*
* Return: 0 on success,
* -1 on failure
*-------------------------------------------------------------------------
*/
int
trav_info_visit_lnk(const char *path, const H5L_info_t *linfo, void *udata)
{
/* Add the link to the 'info' struct */
trav_info_add((trav_info_t *)udata, path, ((linfo->type == H5L_TYPE_SOFT) ? H5TRAV_TYPE_LINK : H5TRAV_TYPE_UDLINK));
return(0);
} /* end trav_info_visit_lnk() */
/*-------------------------------------------------------------------------
* Function: h5trav_getinfo
*
* Purpose: get an array of "trav_info_t" , containing the name and type of
* objects in the file
*
* Return: 0 on success,
* -1 on failure
*-------------------------------------------------------------------------
*/
int
h5trav_getinfo(hid_t file_id, trav_info_t *info)
{
trav_visitor_t info_visitor; /* Visitor structure for trav_info_t's */
int ret_value = 0;
/* Init visitor structure */
info_visitor.visit_obj = trav_info_visit_obj;
info_visitor.visit_lnk = trav_info_visit_lnk;
info_visitor.udata = info;
/* Traverse all objects in the file, visiting each object & link */
if(traverse(file_id, "/", TRUE, TRUE, &info_visitor, H5O_INFO_BASIC) < 0)
H5TOOLS_GOTO_ERROR((-1), "traverse failed");
done:
return ret_value;
}
/*-------------------------------------------------------------------------
* Function: h5trav_getindex
*
* Purpose: get index of OBJ in list
*
* Return: index on success,
* -1 if not found
*-------------------------------------------------------------------------
*/
H5_ATTR_PURE ssize_t
h5trav_getindex(const trav_info_t *info, const char *obj)
{
size_t u; /* Local index variable */
/* Loop over all paths in 'info' struct, looking for object */
for(u = 0; u < info->nused; u++) {
/* Check for object name having full path (with leading '/') */
if(HDstrcmp(obj, info->paths[u].path) == 0)
return((ssize_t)u);
/* Check for object name without leading '/' */
if(HDstrcmp(obj, (info->paths[u].path + 1)) == 0)
return((ssize_t)u);
} /* end for */
return((ssize_t)-1);
} /* end h5trav_getindex() */
/*-------------------------------------------------------------------------
* Function: trav_info_init
*
* Purpose: Initialize the info
*
* Return: void
*-------------------------------------------------------------------------
*/
void
trav_info_init(const char *filename, hid_t fileid, trav_info_t **_info)
{
trav_info_t *info = (trav_info_t *)HDmalloc(sizeof(trav_info_t));
/* Init info structure */
info->nused = info->nalloc = 0;
info->paths = NULL;
info->fname = filename;
info->fid = fileid;
/* Initialize list of visited symbolic links */
info->symlink_visited.nused = 0;
info->symlink_visited.nalloc = 0;
info->symlink_visited.objs = NULL;
info->symlink_visited.dangle_link = FALSE;
*_info = info;
} /* end trav_info_init() */
/*-------------------------------------------------------------------------
* Function: trav_info_free
*
* Purpose: free info memory
*-------------------------------------------------------------------------
*/
void
trav_info_free(trav_info_t *info)
{
size_t u; /* Local index variable */
if(info) {
/* Free visited symbolic links path and file (if alloc) */
for(u = 0; u < info->symlink_visited.nused; u++) {
if (info->symlink_visited.objs[u].file)
HDfree(info->symlink_visited.objs[u].file);
HDfree(info->symlink_visited.objs[u].path);
}
HDfree(info->symlink_visited.objs);
/* Free path names */
for(u = 0; u < info->nused; u++)
HDfree(info->paths[u].path);
HDfree(info->paths);
HDfree(info);
} /* end if */
} /* end trav_info_free() */
/*-------------------------------------------------------------------------
* "h5trav table" public functions. used in h5repack
*-------------------------------------------------------------------------
*/
/*-------------------------------------------------------------------------
* Function: trav_table_visit_obj
*
* Purpose: Callback for visiting object, with 'table' sructure
*
* Return: 0 on success,
* -1 on failure
*-------------------------------------------------------------------------
*/
static int
trav_table_visit_obj(const char *path, const H5O_info_t *oinfo,
const char *already_visited, void *udata)
{
trav_table_t *table = (trav_table_t *)udata;
/* Check if we've already seen this object */
if(NULL == already_visited)
/* add object to table */
trav_table_add(table, path, oinfo);
else
/* Add alias for object to table */
trav_table_addlink(table, oinfo->addr, path);
return 0;
} /* end trav_table_visit_obj() */
/*-------------------------------------------------------------------------
* Function: trav_table_visit_lnk
*
* Purpose: Callback for visiting link, with 'table' sructure
*
* Return: 0 on success,
* -1 on failure
*-------------------------------------------------------------------------
*/
static int
trav_table_visit_lnk(const char *path, const H5L_info_t H5_ATTR_UNUSED *linfo, void *udata)
{
/* Add the link to the 'table' struct */
trav_table_add((trav_table_t *)udata, path, NULL);
return 0;
} /* end trav_table_visit_lnk() */
/*-------------------------------------------------------------------------
* Function: h5trav_gettable
*
* Purpose: get the trav_table_t struct
*
* Return: 0 on success,
* -1 on failure
*-------------------------------------------------------------------------
*/
int
h5trav_gettable(hid_t fid, trav_table_t *table)
{
trav_visitor_t table_visitor; /* Visitor structure for trav_table_t's */
int ret_value = 0;
/* Init visitor structure */
table_visitor.visit_obj = trav_table_visit_obj;
table_visitor.visit_lnk = trav_table_visit_lnk;
table_visitor.udata = table;
/* Traverse all objects in the file, visiting each object & link */
if(traverse(fid, "/", TRUE, TRUE, &table_visitor, H5O_INFO_BASIC) < 0)
H5TOOLS_GOTO_ERROR((-1), "traverse failed");
done:
return ret_value;
}
/*-------------------------------------------------------------------------
* Function: h5trav_getindext
*
* Purpose: get index of NAME in list
*
* Return: index on success,
* -1 if not found
*-------------------------------------------------------------------------
*/
H5_ATTR_PURE int
h5trav_getindext(const char *name, const trav_table_t *table)
{
unsigned int i;
if(table) {
for(i = 0; i < table->nobjs; i++) {
/* Check for object name having full path (with leading '/') */
if(HDstrcmp(name, table->objs[i].name) == 0)
return((int)i);
/* Check for object name without leading '/' */
if(HDstrcmp(name, table->objs[i].name + 1) == 0)
return((int)i);
/* search also in the list of links */
if(table->objs[i].nlinks) {
unsigned int j;
for ( j=0; j<table->objs[i].nlinks; j++) {
/* Check for object name having full path (with leading '/') */
if(HDstrcmp(name, table->objs[i].links[j].new_name) == 0)
return((int)i);
/* Check for object name without leading '/' */
if(HDstrcmp(name, table->objs[i].links[j].new_name + 1) == 0)
return((int)i);
} /* end for */
} /* end if */
} /* end for */
}
return -1;
}
/*-------------------------------------------------------------------------
* Function: trav_table_add
*
* Purpose: Add OBJNO, NAME and TYPE of object to table
*
* Return: void
*-------------------------------------------------------------------------
*/
static void
trav_table_add(trav_table_t *table,
const char *path,
const H5O_info_t *oinfo)
{
size_t new_obj;
if(table) {
if(table->nobjs == table->size) {
table->size = MAX(1, table->size * 2);
table->objs = (trav_obj_t *)HDrealloc(table->objs, table->size * sizeof(trav_obj_t));
} /* end if */
new_obj = table->nobjs++;
table->objs[new_obj].objno = oinfo ? oinfo->addr : HADDR_UNDEF;
table->objs[new_obj].flags[0] = table->objs[new_obj].flags[1] = 0;
table->objs[new_obj].is_same_trgobj = 0;
table->objs[new_obj].name = (char *)HDstrdup(path);
table->objs[new_obj].type = oinfo ? (h5trav_type_t)oinfo->type : H5TRAV_TYPE_LINK;
table->objs[new_obj].nlinks = 0;
table->objs[new_obj].sizelinks = 0;
table->objs[new_obj].links = NULL;
}
}
/*-------------------------------------------------------------------------
* Function: trav_table_addlink
*
* Purpose: Add a hardlink name to the object
*
* Return: void
*-------------------------------------------------------------------------
*/
static void
trav_table_addlink(trav_table_t *table, haddr_t objno, const char *path)
{
size_t i; /* Local index variable */
if(table) {
for(i = 0; i < table->nobjs; i++) {
if(table->objs[i].objno == objno) {
size_t n;
/* already inserted? */
if(HDstrcmp(table->objs[i].name, path) == 0)
return;
/* allocate space if necessary */
if(table->objs[i].nlinks == (unsigned)table->objs[i].sizelinks) {
table->objs[i].sizelinks = MAX(1, table->objs[i].sizelinks * 2);
table->objs[i].links = (trav_link_t *)HDrealloc(table->objs[i].links, table->objs[i].sizelinks * sizeof(trav_link_t));
} /* end if */
/* insert it */
n = table->objs[i].nlinks++;
table->objs[i].links[n].new_name = (char *)HDstrdup(path);
return;
} /* end for */
} /* end for */
}
}
/*-------------------------------------------------------------------------
* Function: trav_table_addflags
*
* Purpose: Add FLAGS, NAME and TYPE of object to table
*
* Return: void
*-------------------------------------------------------------------------
*/
void trav_table_addflags(unsigned *flags,
char *name,
h5trav_type_t type,
trav_table_t *table)
{
size_t new_obj;
if(table) {
if(table->nobjs == table->size) {
table->size = MAX(1, table->size * 2);
table->objs = (trav_obj_t *)HDrealloc(table->objs, table->size * sizeof(trav_obj_t));
} /* end if */
new_obj = table->nobjs++;
table->objs[new_obj].objno = 0;
table->objs[new_obj].flags[0] = flags[0];
table->objs[new_obj].flags[1] = flags[1];
table->objs[new_obj].is_same_trgobj = 0;
table->objs[new_obj].name = (char *)HDstrdup(name);
table->objs[new_obj].type = type;
table->objs[new_obj].nlinks = 0;
table->objs[new_obj].sizelinks = 0;
table->objs[new_obj].links = NULL;
}
}
/*-------------------------------------------------------------------------
* Function: trav_table_init
*
* Purpose: Initialize the table
*
* Return: void
*-------------------------------------------------------------------------
*/
void trav_table_init(trav_table_t **tbl)
{
trav_table_t* table = (trav_table_t*) HDmalloc(sizeof(trav_table_t));
if(table) {
table->size = 0;
table->nobjs = 0;
table->objs = NULL;
}
*tbl = table;
}
/*-------------------------------------------------------------------------
* Function: trav_table_free
*
* Purpose: free table memory
*
* Return: void
*-------------------------------------------------------------------------
*/
void trav_table_free(trav_table_t *table)
{
if(table) {
if(table->objs) {
unsigned int i;
for(i = 0; i < table->nobjs; i++) {
HDfree(table->objs[i].name );
if(table->objs[i].nlinks) {
unsigned int j;
for(j = 0; j < table->objs[i].nlinks; j++)
HDfree(table->objs[i].links[j].new_name);
HDfree(table->objs[i].links);
} /* end if */
} /* end for */
HDfree(table->objs);
} /* end if */
HDfree(table);
}
}
static herr_t
trav_attr(hid_t
#ifndef H5TRAV_PRINT_SPACE
H5_ATTR_UNUSED
#endif /* H5TRAV_PRINT_SPACE */
obj, const char *attr_name, const H5A_info_t H5_ATTR_UNUSED *ainfo, void *_op_data)
{
trav_path_op_data_t *op_data = (trav_path_op_data_t *)_op_data;
const char *buf = op_data->path;
if((strlen(buf)==1) && (*buf=='/'))
HDprintf(" %-10s %s%s", "attribute", buf, attr_name);
else
HDprintf(" %-10s %s/%s", "attribute", buf, attr_name);
#ifdef H5TRAV_PRINT_SPACE
if(trav_verbosity < 2) {
#endif
HDprintf("\n");
#ifdef H5TRAV_PRINT_SPACE
}
else {
hid_t attr = -1;
hid_t space = -1;
hsize_t size[H5S_MAX_RANK];
int ndims;
int i;
H5S_class_t space_type;
if((attr = H5Aopen(obj, attr_name, H5P_DEFAULT))) {
space = H5Aget_space(attr);
/* Data space */
ndims = H5Sget_simple_extent_dims(space, size, NULL);
space_type = H5Sget_simple_extent_type(space);
switch(space_type) {
case H5S_SCALAR:
/* scalar dataspace */
HDprintf(" scalar\n");
break;
case H5S_SIMPLE:
/* simple dataspace */
HDprintf(" {");
for (i = 0; i < ndims; i++) {
HDprintf("%s" HSIZE_T_FORMAT, i?", ":"", size[i]);
}
HDprintf("}\n");
break;
case H5S_NULL:
/* null dataspace */
HDprintf(" null\n");
break;
default:
/* Unknown dataspace type */
HDprintf(" unknown\n");
break;
} /* end switch */
H5Sclose(space);
H5Aclose(attr);
}
}
#endif
return(0);
}
/*-------------------------------------------------------------------------
* Function: trav_print_visit_obj
*
* Purpose: Callback for visiting object, when printing info
*
* Return: 0 on success,
* -1 on failure
*-------------------------------------------------------------------------
*/
static int
trav_print_visit_obj(const char *path, const H5O_info_t *oinfo,
const char *already_visited, void *udata)
{
trav_print_udata_t *print_udata = (trav_print_udata_t *)udata;
/* Print the name of the object */
/* (no new-line, so that objects that we've encountered before can print
* the name of the original object)
*/
switch(oinfo->type) {
case H5O_TYPE_GROUP:
HDprintf(" %-10s %s", "group", path);
break;
case H5O_TYPE_DATASET:
HDprintf(" %-10s %s", "dataset", path);
break;
case H5O_TYPE_NAMED_DATATYPE:
HDprintf(" %-10s %s", "datatype", path);
break;
case H5O_TYPE_MAP:
case H5O_TYPE_UNKNOWN:
case H5O_TYPE_NTYPES:
default:
HDprintf(" %-10s %s", "unknown object type", path);
break;
} /* end switch */
/* Check if we've already seen this object */
if(NULL == already_visited) {
trav_path_op_data_t op_data;
op_data.path = path;
/* Finish printing line about object */
HDprintf("\n");
if(trav_verbosity > 0)
H5Aiterate_by_name(print_udata->fid, path, trav_index_by, trav_index_order,
NULL, trav_attr, &op_data, H5P_DEFAULT);
}
else
/* Print the link's original name */
HDprintf(" -> %s\n", already_visited);
return(0);
} /* end trav_print_visit_obj() */
/*-------------------------------------------------------------------------
* Function: trav_print_visit_lnk
*
* Purpose: Callback for visiting link, when printing info
*
* Return: 0 on success,
* -1 on failure
*-------------------------------------------------------------------------
*/
static int
trav_print_visit_lnk(const char *path, const H5L_info_t *linfo, void *udata)
{
trav_print_udata_t *print_udata = (trav_print_udata_t *)udata;
/* Print appropriate information for the type of link */
switch(linfo->type) {
case H5L_TYPE_SOFT:
if(linfo->u.val_size > 0) {
char *targbuf = (char*)HDmalloc(linfo->u.val_size + 1);
if(targbuf) {
if(H5Lget_val(print_udata->fid, path, targbuf, linfo->u.val_size + 1, H5P_DEFAULT) < 0)
targbuf[0] = 0;
HDprintf(" %-10s %s -> %s\n", "link", path, targbuf);
HDfree(targbuf);
}
} /* end if */
else
HDprintf(" %-10s %s ->\n", "link", path);
break;
case H5L_TYPE_EXTERNAL:
if(linfo->u.val_size > 0) {
char *targbuf = NULL;
const char *filename = NULL;
const char *objname = NULL;
targbuf = (char*)HDmalloc(linfo->u.val_size + 1);
if(targbuf) {
if(H5Lget_val(print_udata->fid, path, targbuf, linfo->u.val_size + 1, H5P_DEFAULT) < 0)
targbuf[0] = 0;
if(H5Lunpack_elink_val(targbuf, linfo->u.val_size, NULL, &filename, &objname) >= 0)
HDprintf(" %-10s %s -> %s %s\n", "ext link", path, filename, objname);
HDfree(targbuf);
}
} /* end if */
else
HDprintf(" %-10s %s ->\n", "ext link", path);
break;
case H5L_TYPE_HARD:
/* Should be handled elsewhere */
return(-1);
case H5L_TYPE_ERROR:
case H5L_TYPE_MAX:
default:
HDprintf(" %-10s %s -> ???\n", "unknown type of UD link", path);
break;
} /* end switch() */
return(0);
} /* end trav_print_visit_lnk() */
/*-------------------------------------------------------------------------
* Function: h5trav_print
*
* Purpose: Print information about the objects & links in the file
*
* Return: 0 on success,
* -1 on failure
*-------------------------------------------------------------------------
*/
int
h5trav_print(hid_t fid)
{
trav_print_udata_t print_udata; /* User data for traversal */
trav_visitor_t print_visitor; /* Visitor structure for printing objects */
int ret_value = 0;
/* Init user data for printing */
print_udata.fid = fid;
/* Init visitor structure */
print_visitor.visit_obj = trav_print_visit_obj;
print_visitor.visit_lnk = trav_print_visit_lnk;
print_visitor.udata = &print_udata;
/* Traverse all objects in the file, visiting each object & link */
if(traverse(fid, "/", TRUE, TRUE, &print_visitor, H5O_INFO_BASIC) < 0)
H5TOOLS_GOTO_ERROR(FAIL, "traverse failed");
done:
return ret_value;
}
/*-------------------------------------------------------------------------
* Function: h5trav_visit
*
* Purpose: Generic traversal routine for visiting objects and links
*
* Return: 0 on success,
* -1 on failure
*-------------------------------------------------------------------------
*/
int
h5trav_visit(hid_t fid, const char *grp_name, hbool_t visit_start,
hbool_t recurse, h5trav_obj_func_t visit_obj, h5trav_lnk_func_t visit_lnk,
void *udata, unsigned fields)
{
trav_visitor_t visitor; /* Visitor structure for objects */
int ret_value = 0;
/* Init visitor structure */
visitor.visit_obj = visit_obj;
visitor.visit_lnk = visit_lnk;
visitor.udata = udata;
/* Traverse all objects in the file, visiting each object & link */
if(traverse(fid, grp_name, visit_start, recurse, &visitor, fields) < 0)
H5TOOLS_GOTO_ERROR((-1), "traverse failed");
done:
return ret_value;
}
/*-------------------------------------------------------------------------
* Function: symlink_visit_add
*
* Purpose: Add an symbolic link to visited data structure
*
* Return: 0 on success,
* -1 on failure
*-------------------------------------------------------------------------
*/
herr_t
symlink_visit_add(symlink_trav_t *visited, H5L_type_t type, const char *file, const char *path)
{
size_t idx; /* Index of address to use */
herr_t ret_value = SUCCEED;
/* Allocate space if necessary */
if(visited->nused == visited->nalloc) {
void *tmp_ptr;
visited->nalloc = MAX(1, visited->nalloc * 2);
if(NULL == (tmp_ptr = HDrealloc(visited->objs, visited->nalloc * sizeof(symlink_trav_path_t))))
H5TOOLS_GOTO_ERROR(FAIL, "visited data structure realloc failed");
visited->objs = (symlink_trav_path_t *)tmp_ptr;
} /* end if */
/* Append it */
idx = visited->nused++;
visited->objs[idx].type = type;
visited->objs[idx].file = NULL;
visited->objs[idx].path = NULL;
if(type == H5L_TYPE_EXTERNAL) {
if(NULL == (visited->objs[idx].file = HDstrdup(file))) {
visited->nused--;
H5TOOLS_GOTO_ERROR(FAIL, "visited data structure name allocation failed");
} /* end if */
} /* end if */
if(NULL == (visited->objs[idx].path = HDstrdup(path))) {
visited->nused--;
if(visited->objs[idx].file)
HDfree (visited->objs[idx].file);
H5TOOLS_GOTO_ERROR(FAIL, "visited data structure path allocation failed");
} /* end if */
done:
return ret_value;
} /* end symlink_visit_add() */
/*-------------------------------------------------------------------------
* Function: symlink_is_visited
*
* Purpose: Check if an symbolic link has already been visited
*
* Return: TRUE/FALSE
*-------------------------------------------------------------------------
*/
H5_ATTR_PURE hbool_t
symlink_is_visited(symlink_trav_t *visited, H5L_type_t type, const char *file, const char *path)
{
size_t u; /* Local index variable */
/* Look for symlink */
for(u = 0; u < visited->nused; u++) {
/* Check for symlink values already in array */
/* check type and path pair to distingush between symbolic links */
if((visited->objs[u].type == type) && !HDstrcmp(visited->objs[u].path, path)) {
/* if external link, file need to be matched as well */
if(visited->objs[u].type == H5L_TYPE_EXTERNAL)
if(!HDstrcmp(visited->objs[u].file, file))
return(TRUE);
return (TRUE);
} /* end if */
} /* end for */
/* Didn't find symlink */
return(FALSE);
} /* end symlink_is_visited() */
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