Introduced libisofs as separated development unit

libisofs/trunk/libisofs/hash.h

@@ -0,0 +1,46 @@
+#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 */