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h5diff.c
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* 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 LICENSE 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 *
* [email protected]. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#include "H5private.h"
#include "h5tools.h"
#include "h5tools_utils.h"
#include "h5diff.h"
#include "ph5diff.h"
#ifdef H5_HAVE_PARALLEL
static diff_err_t handle_worker_request(char *worker_tasks, int *n_busy_tasks, diff_opt_t *opts,
hsize_t *n_diffs);
static diff_err_t dispatch_diff_to_worker(struct diff_mpi_args *args, char *worker_tasks, int *n_busy_tasks);
#endif
/*-------------------------------------------------------------------------
* Function: print_objname
*
* Purpose: check if object name is to be printed, only when:
* 1) verbose mode
* 2) when diff was found (normal mode)
*-------------------------------------------------------------------------
*/
H5_ATTR_PURE int
print_objname(diff_opt_t *opts, hsize_t nfound)
{
return ((opts->mode_verbose || nfound) && !opts->mode_quiet) ? 1 : 0;
}
/*-------------------------------------------------------------------------
* Function: do_print_objname
*
* Purpose: print object name
*-------------------------------------------------------------------------
*/
void
do_print_objname(const char *OBJ, const char *path1, const char *path2, diff_opt_t *opts)
{
/* if verbose level is higher than 0, put space line before
* displaying any object or symbolic links. This improves
* readability of the output.
*/
if (opts->mode_verbose_level >= 1)
parallel_print("\n");
parallel_print("%-7s: <%s> and <%s>\n", OBJ, path1, path2);
}
/*-------------------------------------------------------------------------
* Function: do_print_attrname
*
* Purpose: print attribute name
*-------------------------------------------------------------------------
*/
void
do_print_attrname(const char *attr, const char *path1, const char *path2)
{
parallel_print("%-7s: <%s> and <%s>\n", attr, path1, path2);
}
/*-------------------------------------------------------------------------
* Function: print_warn
*
* Purpose: check print warning condition.
* Return:
* 1 if verbose mode
* 0 if not verbos mode
*-------------------------------------------------------------------------
*/
static int
print_warn(diff_opt_t *opts)
{
return ((opts->mode_verbose)) ? 1 : 0;
}
#ifdef H5_HAVE_PARALLEL
/*-------------------------------------------------------------------------
* Function: phdiff_dismiss_workers
*
* Purpose: tell all workers to end.
*
* Return: none
*-------------------------------------------------------------------------
*/
void
phdiff_dismiss_workers(void)
{
int i;
for (i = 1; i < g_nTasks; i++)
MPI_Send(NULL, 0, MPI_BYTE, i, MPI_TAG_END, MPI_COMM_WORLD);
}
#endif
/*-------------------------------------------------------------------------
* Function: is_valid_options
*
* Purpose: check if options are valid
*
* Return:
* 1 : Valid
* 0 : Not valid
*------------------------------------------------------------------------*/
static int
is_valid_options(diff_opt_t *opts)
{
int ret_value = 1; /* init to valid */
/*-----------------------------------------------
* no -q(quiet) with -v (verbose) or -r (report) */
if (opts->mode_quiet && (opts->mode_verbose || opts->mode_report)) {
parallel_print("Error: -q (quiet mode) cannot be added to verbose or report modes\n");
opts->err_stat = H5DIFF_ERR;
H5TOOLS_GOTO_DONE(0);
}
/* -------------------------------------------------------
* only allow --no-dangling-links along with --follow-symlinks */
if (opts->no_dangle_links && !opts->follow_links) {
parallel_print("Error: --no-dangling-links must be used along with --follow-symlinks option.\n");
opts->err_stat = H5DIFF_ERR;
H5TOOLS_GOTO_DONE(0);
}
done:
return ret_value;
}
/*-------------------------------------------------------------------------
* Function: is_exclude_path
*
* Purpose: check if 'paths' are part of exclude path list
*
* Return:
* 1 - excluded path
* 0 - not excluded path
*------------------------------------------------------------------------*/
static int
is_exclude_path(char *path, h5trav_type_t type, diff_opt_t *opts)
{
struct exclude_path_list *exclude_path_ptr;
int ret_cmp;
int ret_value = 0;
/* check if exclude path option is given */
if (!opts->exclude_path)
H5TOOLS_GOTO_DONE(0);
/* assign to local exclude list pointer */
exclude_path_ptr = opts->exclude;
/* search objects in exclude list */
while (NULL != exclude_path_ptr) {
/* if exclude path is in group, exclude its members as well */
if (exclude_path_ptr->obj_type == H5TRAV_TYPE_GROUP) {
ret_cmp = strncmp(exclude_path_ptr->obj_path, path, strlen(exclude_path_ptr->obj_path));
if (ret_cmp == 0) { /* found matching members */
size_t len_grp;
/* check if given path belong to an excluding group, if so
* exclude it as well.
* This verifies if “/grp1/dset1” is only under “/grp1”, but
* not under “/grp1xxx/” group.
*/
len_grp = strlen(exclude_path_ptr->obj_path);
if (path[len_grp] == '/') {
/* belong to excluded group! */
ret_value = 1;
break; /* while */
}
}
}
/* exclude target is not group, just exclude the object */
else {
ret_cmp = strcmp(exclude_path_ptr->obj_path, path);
if (ret_cmp == 0) { /* found matching object */
/* excluded non-group object */
ret_value = 1;
/* remember the type of this matching object.
* if it's group, it can be used for excluding its member
* objects in this while() loop */
exclude_path_ptr->obj_type = type;
break; /* while */
}
}
exclude_path_ptr = exclude_path_ptr->next;
}
done:
return ret_value;
}
/*-------------------------------------------------------------------------
* Function: is_exclude_attr
*
* Purpose: check if 'paths' are part of exclude path list
*
* Return:
* 1 - excluded path
* 0 - not excluded path
*------------------------------------------------------------------------*/
static int
is_exclude_attr(const char *path, h5trav_type_t type, diff_opt_t *opts)
{
struct exclude_path_list *exclude_ptr;
int ret_cmp;
int ret_value = 0;
/* check if exclude attr option is given */
if (!opts->exclude_attr_path)
H5TOOLS_GOTO_DONE(0);
/* assign to local exclude list pointer */
exclude_ptr = opts->exclude_attr;
/* search objects in exclude list */
while (NULL != exclude_ptr) {
/* if exclude path is in group, exclude its members as well */
if (exclude_ptr->obj_type == H5TRAV_TYPE_GROUP) {
ret_cmp = strncmp(exclude_ptr->obj_path, path, strlen(exclude_ptr->obj_path));
if (ret_cmp == 0) { /* found matching members */
size_t len_grp;
/* check if given path belong to an excluding group, if so
* exclude it as well.
* This verifies if “/grp1/dset1” is only under “/grp1”, but
* not under “/grp1xxx/” group.
*/
len_grp = strlen(exclude_ptr->obj_path);
if (path[len_grp] == '/') {
/* belong to excluded group! */
ret_value = 1;
break; /* while */
}
}
}
/* exclude target is not group, just exclude the object */
else {
ret_cmp = strcmp(exclude_ptr->obj_path, path);
if (ret_cmp == 0) { /* found matching object */
/* excluded non-group object */
ret_value = 1;
/* remember the type of this matching object.
* if it's group, it can be used for excluding its member
* objects in this while() loop */
exclude_ptr->obj_type = type;
break; /* while */
}
}
exclude_ptr = exclude_ptr->next;
}
done:
return ret_value;
}
/*-------------------------------------------------------------------------
* Function: free_exclude_path_list
*
* Purpose: free exclude object list from diff options
*------------------------------------------------------------------------*/
static void
free_exclude_path_list(diff_opt_t *opts)
{
struct exclude_path_list *curr = opts->exclude;
struct exclude_path_list *next;
while (NULL != curr) {
next = curr->next;
free(curr);
curr = next;
}
}
/*-------------------------------------------------------------------------
* Function: free_exclude_attr_list
*
* Purpose: free exclude object attribute list from diff options
*------------------------------------------------------------------------*/
static void
free_exclude_attr_list(diff_opt_t *opts)
{
struct exclude_path_list *curr = opts->exclude_attr;
struct exclude_path_list *next;
while (NULL != curr) {
next = curr->next;
free(curr);
curr = next;
}
}
/*-------------------------------------------------------------------------
* Function: build_match_list
*
* Purpose: get list of matching path_name from info1 and info2
*
* Note:
* Find common objects; the algorithm used for this search is the
* cosequential match algorithm and is described in
* Folk, Michael; Zoellick, Bill. (1992). File Structures. Addison-Wesley.
* Moved out from diff_match() to make code more flexible.
*
* Parameter:
* table_out [OUT] : return the list
*------------------------------------------------------------------------*/
static void
build_match_list(const char *objname1, trav_info_t *info1, const char *objname2, trav_info_t *info2,
trav_table_t **table_out, diff_opt_t *opts)
{
size_t curr1 = 0;
size_t curr2 = 0;
unsigned infile[2];
char *path1_lp = NULL;
char *path2_lp = NULL;
h5trav_type_t type1_l;
h5trav_type_t type2_l;
size_t path1_offset = 0;
size_t path2_offset = 0;
int cmp;
trav_table_t *table = NULL;
size_t idx;
H5TOOLS_START_DEBUG(" - errstat:%d", opts->err_stat);
/* init */
trav_table_init(info1->fid, &table);
if (table == NULL) {
H5TOOLS_INFO("Cannot create traverse table");
H5TOOLS_GOTO_DONE_NO_RET();
}
/*
* This is necessary for the case that given objects are group and
* have different names (ex: obj1 is /grp1 and obj2 is /grp5).
* All the objects belong to given groups are the candidates.
* So prepare to compare paths without the group names.
*/
H5TOOLS_DEBUG("objname1 = %s objname2 = %s ", objname1, objname2);
/* if obj1 is not root */
if (strcmp(objname1, "/") != 0)
path1_offset = strlen(objname1);
/* if obj2 is not root */
if (strcmp(objname2, "/") != 0)
path2_offset = strlen(objname2);
/*--------------------------------------------------
* build the list
*/
while (curr1 < info1->nused && curr2 < info2->nused) {
path1_lp = (info1->paths[curr1].path) + path1_offset;
path2_lp = (info2->paths[curr2].path) + path2_offset;
type1_l = info1->paths[curr1].type;
type2_l = info2->paths[curr2].type;
/* criteria is string compare */
cmp = strcmp(path1_lp, path2_lp);
if (cmp == 0) {
if (!is_exclude_path(path1_lp, type1_l, opts)) {
infile[0] = 1;
infile[1] = 1;
trav_table_addflags(infile, path1_lp, info1->paths[curr1].type, table);
/* if the two point to the same target object,
* mark that in table */
if (info1->paths[curr1].fileno == info2->paths[curr2].fileno) {
int token_cmp;
if (H5Otoken_cmp(info1->fid, &info1->paths[curr1].obj_token,
&info2->paths[curr2].obj_token, &token_cmp) < 0) {
H5TOOLS_INFO("Failed to compare object tokens");
opts->err_stat = H5DIFF_ERR;
H5TOOLS_GOTO_DONE_NO_RET();
}
if (!token_cmp) {
idx = table->nobjs - 1;
table->objs[idx].is_same_trgobj = 1;
}
}
}
curr1++;
curr2++;
} /* end if */
else if (cmp < 0) {
if (!is_exclude_path(path1_lp, type1_l, opts)) {
infile[0] = 1;
infile[1] = 0;
trav_table_addflags(infile, path1_lp, info1->paths[curr1].type, table);
}
curr1++;
} /* end else-if */
else {
if (!is_exclude_path(path2_lp, type2_l, opts)) {
infile[0] = 0;
infile[1] = 1;
trav_table_addflags(infile, path2_lp, info2->paths[curr2].type, table);
}
curr2++;
} /* end else */
} /* end while */
/* list1 did not end */
infile[0] = 1;
infile[1] = 0;
while (curr1 < info1->nused) {
path1_lp = (info1->paths[curr1].path) + path1_offset;
type1_l = info1->paths[curr1].type;
if (!is_exclude_path(path1_lp, type1_l, opts)) {
trav_table_addflags(infile, path1_lp, info1->paths[curr1].type, table);
}
curr1++;
} /* end while */
/* list2 did not end */
infile[0] = 0;
infile[1] = 1;
while (curr2 < info2->nused) {
path2_lp = (info2->paths[curr2].path) + path2_offset;
type2_l = info2->paths[curr2].type;
if (!is_exclude_path(path2_lp, type2_l, opts)) {
trav_table_addflags(infile, path2_lp, info2->paths[curr2].type, table);
}
curr2++;
} /* end while */
free_exclude_path_list(opts);
done:
*table_out = table;
H5TOOLS_ENDDEBUG(" ");
}
/*-------------------------------------------------------------------------
* Function: trav_grp_objs
*
* Purpose: Call back function from h5trav_visit().
*------------------------------------------------------------------------*/
static herr_t
trav_grp_objs(const char *path, const H5O_info2_t *oinfo, const char *already_visited, void *udata)
{
trav_info_visit_obj(path, oinfo, already_visited, udata);
return 0;
}
/*-------------------------------------------------------------------------
* Function: trav_grp_symlinks
*
* Purpose: Call back function from h5trav_visit().
* Track and extra checkings while visiting all symbolic-links.
*------------------------------------------------------------------------*/
static herr_t
trav_grp_symlinks(const char *path, const H5L_info2_t *linfo, void *udata)
{
trav_info_t *tinfo = (trav_info_t *)udata;
diff_opt_t *opts = (diff_opt_t *)tinfo->opts;
h5tool_link_info_t lnk_info;
const char *ext_fname;
const char *ext_path;
herr_t ret_value = SUCCEED;
H5TOOLS_START_DEBUG(" ");
/* init linkinfo struct */
memset(&lnk_info, 0, sizeof(h5tool_link_info_t));
if (!opts->follow_links) {
trav_info_visit_lnk(path, linfo, tinfo);
H5TOOLS_GOTO_DONE(SUCCEED);
}
switch (linfo->type) {
case H5L_TYPE_SOFT:
if ((ret_value = H5tools_get_symlink_info(tinfo->fid, path, &lnk_info, opts->follow_links)) < 0) {
H5TOOLS_GOTO_DONE(FAIL);
}
else if (ret_value == 0) {
/* no dangling link option given and detect dangling link */
tinfo->symlink_visited.dangle_link = true;
trav_info_visit_lnk(path, linfo, tinfo);
if (opts->no_dangle_links)
opts->err_stat = H5DIFF_ERR; /* make dangling link is error */
H5TOOLS_GOTO_DONE(SUCCEED);
}
/* check if already visit the target object */
if (symlink_is_visited(&(tinfo->symlink_visited), linfo->type, NULL, lnk_info.trg_path))
H5TOOLS_GOTO_DONE(SUCCEED);
/* add this link as visited link */
if (symlink_visit_add(&(tinfo->symlink_visited), linfo->type, NULL, lnk_info.trg_path) < 0)
H5TOOLS_GOTO_DONE(SUCCEED);
if (h5trav_visit(tinfo->fid, path, true, true, trav_grp_objs, trav_grp_symlinks, tinfo,
H5O_INFO_BASIC) < 0) {
parallel_print("Error: Could not get file contents\n");
opts->err_stat = H5DIFF_ERR;
H5TOOLS_GOTO_ERROR(FAIL, "Error: Could not get file contents");
}
break;
case H5L_TYPE_EXTERNAL:
if ((ret_value = H5tools_get_symlink_info(tinfo->fid, path, &lnk_info, opts->follow_links)) < 0) {
H5TOOLS_GOTO_DONE(FAIL);
}
else if (ret_value == 0) {
/* no dangling link option given and detect dangling link */
tinfo->symlink_visited.dangle_link = true;
trav_info_visit_lnk(path, linfo, tinfo);
if (opts->no_dangle_links)
opts->err_stat = H5DIFF_ERR; /* make dangling link is error */
H5TOOLS_GOTO_DONE(SUCCEED);
}
if (H5Lunpack_elink_val(lnk_info.trg_path, linfo->u.val_size, NULL, &ext_fname, &ext_path) < 0)
H5TOOLS_GOTO_DONE(SUCCEED);
/* check if already visit the target object */
if (symlink_is_visited(&(tinfo->symlink_visited), linfo->type, ext_fname, ext_path))
H5TOOLS_GOTO_DONE(SUCCEED);
/* add this link as visited link */
if (symlink_visit_add(&(tinfo->symlink_visited), linfo->type, ext_fname, ext_path) < 0)
H5TOOLS_GOTO_DONE(SUCCEED);
if (h5trav_visit(tinfo->fid, path, true, true, trav_grp_objs, trav_grp_symlinks, tinfo,
H5O_INFO_BASIC) < 0) {
parallel_print("Error: Could not get file contents\n");
opts->err_stat = H5DIFF_ERR;
H5TOOLS_GOTO_ERROR(FAIL, "Error: Could not get file contents\n");
}
break;
case H5L_TYPE_HARD:
case H5L_TYPE_MAX:
case H5L_TYPE_ERROR:
default:
parallel_print("Error: Invalid link type\n");
opts->err_stat = H5DIFF_ERR;
H5TOOLS_GOTO_ERROR(FAIL, "Error: Invalid link type");
break;
} /* end of switch */
done:
if (lnk_info.trg_path)
free(lnk_info.trg_path);
H5TOOLS_ENDDEBUG(" ");
return ret_value;
}
/*-------------------------------------------------------------------------
* Function: h5diff
*
* Purpose: public function, can be called in an application program.
* return differences between 2 HDF5 files
*
* Return: Number of differences found.
*-------------------------------------------------------------------------
*/
hsize_t
h5diff(const char *fname1, const char *fname2, const char *objname1, const char *objname2, diff_opt_t *opts)
{
hid_t file1_id = H5I_INVALID_HID;
hid_t file2_id = H5I_INVALID_HID;
hid_t fapl1_id = H5P_DEFAULT;
hid_t fapl2_id = H5P_DEFAULT;
char filenames[2][MAX_FILENAME];
hsize_t nfound = 0;
int l_ret1 = -1;
int l_ret2 = -1;
char *obj1fullname = NULL;
char *obj2fullname = NULL;
int both_objs_grp = 0;
/* init to group type */
h5trav_type_t obj1type = H5TRAV_TYPE_GROUP;
h5trav_type_t obj2type = H5TRAV_TYPE_GROUP;
/* for single object */
H5O_info2_t oinfo1, oinfo2; /* object info */
trav_info_t *info1_obj = NULL;
trav_info_t *info2_obj = NULL;
/* for group object */
trav_info_t *info1_grp = NULL;
trav_info_t *info2_grp = NULL;
/* local pointer */
trav_info_t *info1_lp = NULL;
trav_info_t *info2_lp = NULL;
/* link info from specified object */
H5L_info2_t src_linfo1;
H5L_info2_t src_linfo2;
/* link info from member object */
h5tool_link_info_t trg_linfo1;
h5tool_link_info_t trg_linfo2;
/* list for common objects */
trav_table_t *match_list = NULL;
diff_err_t ret_value = H5DIFF_NO_ERR;
H5TOOLS_START_DEBUG(" ");
/* init filenames */
memset(filenames, 0, MAX_FILENAME * 2);
/* init link info struct */
memset(&trg_linfo1, 0, sizeof(h5tool_link_info_t));
memset(&trg_linfo2, 0, sizeof(h5tool_link_info_t));
/*-------------------------------------------------------------------------
* check invalid combination of options
*-----------------------------------------------------------------------*/
if (!is_valid_options(opts))
H5TOOLS_GOTO_DONE(0);
opts->cmn_objs = 1; /* eliminate warning */
opts->err_stat = H5DIFF_NO_ERR; /* initialize error status */
/*-------------------------------------------------------------------------
* open the files first; if they are not valid, no point in continuing
*-------------------------------------------------------------------------
*/
/* open file 1 */
if ((fapl1_id = h5tools_get_new_fapl(H5P_DEFAULT)) < 0) {
parallel_print("h5diff: unable to create fapl for input file\n");
H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "unable to create input fapl\n");
}
/* Set non-default virtual file driver, if requested */
if (opts->custom_vfd[0] && opts->vfd_info[0].u.name) {
if (h5tools_set_fapl_vfd(fapl1_id, &(opts->vfd_info[0])) < 0) {
parallel_print("h5diff: unable to set VFD on fapl for input file\n");
H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "failed to set VFD on FAPL\n");
}
}
/* Set non-default VOL connector, if requested */
if (opts->custom_vol[0]) {
if (h5tools_set_fapl_vol(fapl1_id, &(opts->vol_info[0])) < 0) {
parallel_print("h5diff: unable to set VOL on fapl for input file\n");
H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "failed to set VOL on FAPL\n");
}
}
if (opts->page_cache > 0) {
if (H5Pset_page_buffer_size(fapl1_id, opts->page_cache, 0, 0) < 0) {
parallel_print("h5diff: unable to set page buffer cache size for fapl for input file\n");
H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "unable to set page buffer cache size on FAPL\n");
}
}
if ((file1_id = h5tools_fopen(fname1, H5F_ACC_RDONLY, fapl1_id,
(opts->custom_vol[0] || opts->custom_vfd[0]), NULL, (size_t)0)) < 0) {
parallel_print("h5diff: <%s>: unable to open file\n", fname1);
H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "<%s>: unable to open file\n", fname1);
}
H5TOOLS_DEBUG("file1_id = %s", fname1);
/* open file 2 */
if ((fapl2_id = h5tools_get_new_fapl(H5P_DEFAULT)) < 0) {
parallel_print("h5diff: unable to create fapl for output file\n");
H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "unable to create output fapl\n");
}
/* Set non-default virtual file driver, if requested */
if (opts->custom_vfd[1] && opts->vfd_info[1].u.name) {
if (h5tools_set_fapl_vfd(fapl2_id, &(opts->vfd_info[1])) < 0) {
parallel_print("h5diff: unable to set VFD on fapl for output file\n");
H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "failed to set VFD on FAPL\n");
}
}
/* Set non-default VOL connector, if requested */
if (opts->custom_vol[1]) {
if (h5tools_set_fapl_vol(fapl2_id, &(opts->vol_info[1])) < 0) {
parallel_print("h5diff: unable to set VOL on fapl for output file\n");
H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "failed to set VOL on FAPL\n");
}
}
if (opts->page_cache > 0) {
if (H5Pset_page_buffer_size(fapl2_id, opts->page_cache, 0, 0) < 0) {
parallel_print("h5diff: unable to set page buffer cache size for fapl for output file\n");
H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "unable to set page buffer cache size for output fapl\n");
}
}
if ((file2_id = h5tools_fopen(fname2, H5F_ACC_RDONLY, fapl2_id,
(opts->custom_vol[1] || opts->custom_vfd[1]), NULL, (size_t)0)) < 0) {
parallel_print("h5diff: <%s>: unable to open file\n", fname2);
H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "<%s>: unable to open file\n", fname2);
}
H5TOOLS_DEBUG("file2_id = %s", fname2);
/*-------------------------------------------------------------------------
* Initialize the info structs
*-------------------------------------------------------------------------
*/
trav_info_init(fname1, file1_id, &info1_obj);
trav_info_init(fname2, file2_id, &info2_obj);
H5TOOLS_DEBUG("trav_info_init initialized");
/* if any object is specified */
if (objname1) {
/* make the given object1 fullpath, start with "/" */
if (strncmp(objname1, "/", 1) != 0) {
#ifdef H5_HAVE_ASPRINTF
/* Use the asprintf() routine, since it does what we're trying to do below */
if (asprintf(&obj1fullname, "/%s", objname1) < 0)
H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "name buffer allocation failed");
#else /* H5_HAVE_ASPRINTF */
/* (malloc 2 more for "/" and end-of-line) */
if ((obj1fullname = (char *)malloc(strlen(objname1) + 2)) == NULL)
H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "name buffer allocation failed");
strcpy(obj1fullname, "/");
strcat(obj1fullname, objname1);
#endif /* H5_HAVE_ASPRINTF */
}
else
obj1fullname = strdup(objname1);
H5TOOLS_DEBUG("obj1fullname = %s", obj1fullname);
/* make the given object2 fullpath, start with "/" */
if (strncmp(objname2, "/", 1) != 0) {
#ifdef H5_HAVE_ASPRINTF
/* Use the asprintf() routine, since it does what we're trying to do below */
if (asprintf(&obj2fullname, "/%s", objname2) < 0)
H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "name buffer allocation failed");
#else /* H5_HAVE_ASPRINTF */
/* (malloc 2 more for "/" and end-of-line) */
if ((obj2fullname = (char *)malloc(strlen(objname2) + 2)) == NULL)
H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "name buffer allocation failed");
strcpy(obj2fullname, "/");
strcat(obj2fullname, objname2);
#endif /* H5_HAVE_ASPRINTF */
}
else
obj2fullname = strdup(objname2);
H5TOOLS_DEBUG("obj2fullname = %s", obj2fullname);
/*----------------------------------------------------------
* check if obj1 is root, group, single object or symlink
*/
H5TOOLS_DEBUG("h5diff check if obj1=%s is root, group, single object or symlink", obj1fullname);
if (!strcmp(obj1fullname, "/")) {
obj1type = H5TRAV_TYPE_GROUP;
}
else {
/* check if link itself exist */
if (H5Lexists(file1_id, obj1fullname, H5P_DEFAULT) <= 0) {
parallel_print("Object <%s> could not be found in <%s>\n", obj1fullname, fname1);
H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "Error: Object could not be found");
}
/* get info from link */
if (H5Lget_info2(file1_id, obj1fullname, &src_linfo1, H5P_DEFAULT) < 0) {
parallel_print("Unable to get link info from <%s>\n", obj1fullname);
H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "H5Lget_info failed");
}
info1_lp = info1_obj;
/*
* check the type of specified path for hard and symbolic links
*/
if (src_linfo1.type == H5L_TYPE_HARD) {
size_t idx;
/* optional data pass */
info1_obj->opts = (diff_opt_t *)opts;
if (H5Oget_info_by_name3(file1_id, obj1fullname, &oinfo1, H5O_INFO_BASIC, H5P_DEFAULT) < 0) {
parallel_print("Error: Could not get file contents\n");
H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "Error: Could not get file contents");
}
obj1type = (h5trav_type_t)oinfo1.type;
trav_info_add(info1_obj, obj1fullname, obj1type);
idx = info1_obj->nused - 1;
memcpy(&info1_obj->paths[idx].obj_token, &oinfo1.token, sizeof(H5O_token_t));
info1_obj->paths[idx].fileno = oinfo1.fileno;
}
else if (src_linfo1.type == H5L_TYPE_SOFT) {
obj1type = H5TRAV_TYPE_LINK;
trav_info_add(info1_obj, obj1fullname, obj1type);
}
else if (src_linfo1.type == H5L_TYPE_EXTERNAL) {
obj1type = H5TRAV_TYPE_UDLINK;
trav_info_add(info1_obj, obj1fullname, obj1type);
}
}
/*----------------------------------------------------------
* check if obj2 is root, group, single object or symlink
*/
H5TOOLS_DEBUG("h5diff check if obj2=%s is root, group, single object or symlink", obj2fullname);
if (!strcmp(obj2fullname, "/")) {
obj2type = H5TRAV_TYPE_GROUP;
}
else {
/* check if link itself exist */
if (H5Lexists(file2_id, obj2fullname, H5P_DEFAULT) <= 0) {
parallel_print("Object <%s> could not be found in <%s>\n", obj2fullname, fname2);
H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "Error: Object could not be found");
}
/* get info from link */
if (H5Lget_info2(file2_id, obj2fullname, &src_linfo2, H5P_DEFAULT) < 0) {
parallel_print("Unable to get link info from <%s>\n", obj2fullname);
H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "H5Lget_info failed");
}
info2_lp = info2_obj;
/*
* check the type of specified path for hard and symbolic links
*/
if (src_linfo2.type == H5L_TYPE_HARD) {
size_t idx;
/* optional data pass */
info2_obj->opts = (diff_opt_t *)opts;
if (H5Oget_info_by_name3(file2_id, obj2fullname, &oinfo2, H5O_INFO_BASIC, H5P_DEFAULT) < 0) {
parallel_print("Error: Could not get file contents\n");
H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "Error: Could not get file contents");
}
obj2type = (h5trav_type_t)oinfo2.type;
trav_info_add(info2_obj, obj2fullname, obj2type);
idx = info2_obj->nused - 1;
memcpy(&info2_obj->paths[idx].obj_token, &oinfo2.token, sizeof(H5O_token_t));
info2_obj->paths[idx].fileno = oinfo2.fileno;
}
else if (src_linfo2.type == H5L_TYPE_SOFT) {
obj2type = H5TRAV_TYPE_LINK;
trav_info_add(info2_obj, obj2fullname, obj2type);
}
else if (src_linfo2.type == H5L_TYPE_EXTERNAL) {
obj2type = H5TRAV_TYPE_UDLINK;
trav_info_add(info2_obj, obj2fullname, obj2type);
}
}
}
/* if no object specified */
else {
H5TOOLS_DEBUG("h5diff no object specified");
/* set root group */
obj1fullname = (char *)strdup("/");
obj1type = H5TRAV_TYPE_GROUP;
obj2fullname = (char *)strdup("/");
obj2type = H5TRAV_TYPE_GROUP;
}
H5TOOLS_DEBUG("get any symbolic links info - errstat:%d", opts->err_stat);
/* get any symbolic links info */
l_ret1 = H5tools_get_symlink_info(file1_id, obj1fullname, &trg_linfo1, opts->follow_links);
l_ret2 = H5tools_get_symlink_info(file2_id, obj2fullname, &trg_linfo2, opts->follow_links);
/*---------------------------------------------
* check for following symlinks
*/
if (opts->follow_links) {
/* pass how to handle printing warning to linkinfo option */
if (print_warn(opts))
trg_linfo1.opt.msg_mode = trg_linfo2.opt.msg_mode = 1;
/*-------------------------------
* check symbolic link (object1)
*/
H5TOOLS_DEBUG("h5diff check symbolic link (object1)");
/* dangling link */
if (l_ret1 == 0) {
H5TOOLS_DEBUG("h5diff ... dangling link");
if (opts->no_dangle_links) {
/* treat dangling link as error */
if (opts->mode_verbose)
parallel_print("Warning: <%s> is a dangling link.\n", obj1fullname);
H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "treat dangling link as error");
}
else {
if (opts->mode_verbose)
parallel_print("obj1 <%s> is a dangling link.\n", obj1fullname);
if (l_ret1 != 0 || l_ret2 != 0) {
nfound++;
print_found(nfound);
H5TOOLS_GOTO_DONE(H5DIFF_NO_ERR);
}
}
}
else if (l_ret1 < 0) { /* fail */
parallel_print("Object <%s> could not be found in <%s>\n", obj1fullname, fname1);
H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "Object could not be found");
}
else if (l_ret1 != 2) { /* symbolic link */
obj1type = (h5trav_type_t)trg_linfo1.trg_type;
H5TOOLS_DEBUG("h5diff ... ... trg_linfo1.trg_type == H5L_TYPE_HARD");
if (info1_lp != NULL) {
size_t idx = info1_lp->nused - 1;
H5TOOLS_DEBUG("h5diff ... ... ... info1_obj not null");
memcpy(&info1_lp->paths[idx].obj_token, &trg_linfo1.obj_token, sizeof(H5O_token_t));
info1_lp->paths[idx].type = (h5trav_type_t)trg_linfo1.trg_type;
info1_lp->paths[idx].fileno = trg_linfo1.fileno;
}
H5TOOLS_DEBUG("h5diff check symbolic link (object1) finished");
}
/*-------------------------------
* check symbolic link (object2)
*/
H5TOOLS_DEBUG("h5diff check symbolic link (object2)");
/* dangling link */
if (l_ret2 == 0) {
H5TOOLS_DEBUG("h5diff ... dangling link");
if (opts->no_dangle_links) {
/* treat dangling link as error */
if (opts->mode_verbose)
parallel_print("Warning: <%s> is a dangling link.\n", obj2fullname);
H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "treat dangling link as error");
}
else {
if (opts->mode_verbose)
parallel_print("obj2 <%s> is a dangling link.\n", obj2fullname);
if (l_ret1 != 0 || l_ret2 != 0) {
nfound++;
print_found(nfound);
H5TOOLS_GOTO_DONE(H5DIFF_NO_ERR);
}
}
}
else if (l_ret2 < 0) { /* fail */
parallel_print("Object <%s> could not be found in <%s>\n", obj2fullname, fname2);
H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "Object could not be found");
}
else if (l_ret2 != 2) { /* symbolic link */
obj2type = (h5trav_type_t)trg_linfo2.trg_type;
if (info2_lp != NULL) {
size_t idx = info2_lp->nused - 1;
H5TOOLS_DEBUG("h5diff ... ... ... info2_obj not null");
memcpy(&info2_lp->paths[idx].obj_token, &trg_linfo2.obj_token, sizeof(H5O_token_t));
info2_lp->paths[idx].type = (h5trav_type_t)trg_linfo2.trg_type;
info2_lp->paths[idx].fileno = trg_linfo2.fileno;
}
H5TOOLS_DEBUG("h5diff check symbolic link (object1) finished");
}
} /* end of if follow symlinks */
/*
* If verbose options is not used, don't need to traverse through the list
* of objects in the group to display objects information,
* So use h5tools_is_obj_same() to improve performance by skipping
* comparing details of same objects.
*/
if (!(opts->mode_verbose || opts->mode_report)) {
H5TOOLS_DEBUG("h5diff NOT (opts->mode_verbose || opts->mode_report)");
/* if no danglink links */
if (l_ret1 > 0 && l_ret2 > 0)
if (h5tools_is_obj_same(file1_id, obj1fullname, file2_id, obj2fullname) != 0)
H5TOOLS_GOTO_DONE(H5DIFF_NO_ERR);
}
both_objs_grp = (obj1type == H5TRAV_TYPE_GROUP && obj2type == H5TRAV_TYPE_GROUP);
if (both_objs_grp) {
H5TOOLS_DEBUG("h5diff both_objs_grp true");
/*
* traverse group1
*/
trav_info_init(fname1, file1_id, &info1_grp);
/* optional data pass */
info1_grp->opts = (diff_opt_t *)opts;
if (h5trav_visit(file1_id, obj1fullname, true, true, trav_grp_objs, trav_grp_symlinks, info1_grp,
H5O_INFO_BASIC) < 0) {
parallel_print("Error: Could not get file contents\n");
H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "Could not get file contents");
}
info1_lp = info1_grp;
/*
* traverse group2
*/
trav_info_init(fname2, file2_id, &info2_grp);
/* optional data pass */
info2_grp->opts = (diff_opt_t *)opts;
if (h5trav_visit(file2_id, obj2fullname, true, true, trav_grp_objs, trav_grp_symlinks, info2_grp,
H5O_INFO_BASIC) < 0) {
parallel_print("Error: Could not get file contents\n");
H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "Could not get file contents");
} /* end if */
info2_lp = info2_grp;
}
H5TOOLS_DEBUG("groups traversed - errstat:%d", opts->err_stat);
H5TOOLS_DEBUG("build_match_list next - errstat:%d", opts->err_stat);
/* process the objects */
build_match_list(obj1fullname, info1_lp, obj2fullname, info2_lp, &match_list, opts);