static struct delayed_set_stat *delayed_set_stat_head;
+/* Table of delayed stat updates hashed by path; null if none. */
+static Hash_table *delayed_set_stat_table;
+
/* A link whose creation we have delayed. */
struct delayed_link
{
return (da->dev == db->dev) & (da->ino == db->ino);
}
+static size_t
+ds_hash (void const *entry, size_t table_size)
+{
+ struct delayed_set_stat const *ds = entry;
+ return hash_string (ds->file_name, table_size);
+}
+
+static bool
+ds_compare (void const *a, void const *b)
+{
+ struct delayed_set_stat const *dsa = a, *dsb = b;
+ return strcmp (dsa->file_name, dsb->file_name) == 0;
+}
+
/* Set up to extract files. */
void
extr_init (void)
size_t file_name_len = strlen (file_name);
struct delayed_set_stat *data;
- for (data = delayed_set_stat_head; data; data = data->next)
- if (strcmp (data->file_name, file_name) == 0)
- break;
+ if (! (delayed_set_stat_table
+ || (delayed_set_stat_table = hash_initialize (0, 0, ds_hash,
+ ds_compare, NULL))))
+ xalloc_die ();
+
+ const struct delayed_set_stat key = { .file_name = (char*) file_name };
- if (data)
+ if ((data = hash_lookup (delayed_set_stat_table, &key)) != NULL)
{
if (data->interdir)
{
delayed_set_stat_head = data;
data->file_name_len = file_name_len;
data->file_name = xstrdup (file_name);
+ if (! hash_insert (delayed_set_stat_table, data))
+ xalloc_die ();
data->after_links = false;
if (st)
{
if (chdir_current == data->change_dir
&& strcmp (data->file_name, fname) == 0)
{
+ hash_remove (delayed_set_stat_table, data);
free_delayed_set_stat (data);
if (prev)
prev->next = next;
}
delayed_set_stat_head = data->next;
+ hash_remove (delayed_set_stat_table, data);
free_delayed_set_stat (data);
}
}
/* Finally, fix the status of directories that are ancestors
of delayed links. */
apply_nonancestor_delayed_set_stat ("", 1);
+
+ /* This table should be empty after apply_nonancestor_delayed_set_stat */
+ if (delayed_set_stat_table != NULL)
+ {
+ hash_free (delayed_set_stat_table);
+ delayed_set_stat_table = NULL;
+ }
}
bool
--- /dev/null
+# Test suite for GNU tar. -*- autotest -*-
+# Copyright 2022-2023 Free Software Foundation, Inc.
+#
+# This file is part of GNU tar.
+#
+# GNU tar is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# GNU tar is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+AT_SETUP([extract a large directory tree with --delay-directory-restore])
+AT_KEYWORDS([extract extrac26])
+
+AT_TAR_CHECK([
+AT_SKIP_LARGE_FILES
+AT_TIMEOUT_PREREQ
+
+echo Creating dirtree
+awk 'BEGIN { for (j = 0; j < 300; j++) for (k = 0; k < 300; k++) print "dirtree/" j "/" k }' | \
+ xargs mkdir -p
+
+echo Creating archive
+tar -cf archive.tar dirtree
+
+echo Extracting archive
+mkdir output
+timeout 15 tar -xf archive.tar --delay-directory-restore -C output
+],
+[0],
+[Creating dirtree
+Creating archive
+Extracting archive
+],
+[],[],[],[gnu])
+
+AT_CLEANUP