Imported needed files for exclude path functionality

libisofs/hash.h

@@ -0,0 +1,69 @@
+/***************************************************************************
+ *            hash.h
+ *
+ *  Copyright  2006  Philippe Rouquier
+ *  Bonfire-app@wanadoo.fr
+ ***************************************************************************/
+
+/*
+ *  This program 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 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 Library General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef ISO_HASH_H
+#define ISO_HASH_H
+
+struct iso_hash_node {
+	struct iso_hash_node *next;
+	char *path;
+};
+
+#define HASH_NODES	128
+
+/**
+ * Searches in the hash table if the path exists.
+ *
+ * \param table The hash table.
+ * \param path The path of the file to look for.
+ *
+ * \return 1 if the path exists in the hash table, 0 otherwise.
+ */
+int iso_hash_lookup(struct iso_hash_node **table, const char *path);
+
+/**
+ * Insert a new path in the hash table.
+ *
+ * \param table The hash table.
+ * \param path The path of a file to add to the hash table.
+ *
+ * \return 1 if the file wasn't already in the hash table, 0 otherwise.
+ */
+int iso_hash_insert(struct iso_hash_node **table, const char *path);
+
+/**
+ * Remove a path from the hash table.
+ *
+ * \param table The hash table.
+ * \param path The path of a file to remove from the hash table.
+ *
+ * \return 1 if the file was found and removed, 0 otherwise.
+ */
+int iso_hash_remove(struct iso_hash_node **table, const char *path);
+
+/**
+ * Empty the hash table.
+ */
+void iso_hash_empty(struct iso_hash_node **table);
+
+#endif /* ISO_HASH_H */