Second pinch of libisofs rewrite

libisofs/ecma119_tree.h

@@ -0,0 +1,95 @@
+/* vim: set noet ts=8 sts=8 sw=8 : */
+
+/**
+ * \file ecma119_tree.h
+ *
+ * Declarations for creating, modifying and printing filesystem trees that
+ * are compatible with ecma119.
+ */
+
+#ifndef LIBISO_ECMA119_TREE_H
+#define LIBISO_ECMA119_TREE_H
+
+struct ecma119_write_target;
+
+enum {
+	ECMA119_FILE,
+	ECMA119_DIR
+};
+
+struct ecma119_dir_info {
+	struct susp_info self_susp;	/**< susp entries for "." */
+	struct susp_info parent_susp;	/**< susp entries for ".." */
+
+	size_t len;			/**< sum of the lengths of children's
+					  * Directory Records (including SU) */
+	size_t CE_len;			/**< sum of the lengths of children's
+					  * SUSP CE areas */
+
+	int depth;
+	size_t path_len;		/**< The length of a path up to, and
+					  * including, this directory. This
+					  * cannot exceed 255. */
+	size_t nchildren;
+	struct ecma119_tree_node **children;
+
+	struct ecma119_tree_node *real_parent;
+					/**< The parent before relocation */
+};
+
+struct ecma119_file_info
+{
+	struct ecma119_tree_node *real_me;
+					/**< If this is non-NULL, the file is
+					  *  a placeholder for a relocated
+					  *  directory and this field points to
+					  *  that relocated directory.
+					  */
+};
+
+/**
+ * A node for a tree containing all the information necessary for writing
+ * an ISO9660 volume.
+ */
+struct ecma119_tree_node
+{
+	char *name;			/**< in ASCII, conforming to the
+					  * current ISO level. */
+	size_t dirent_len;		/**< Length of the directory record,
+					  * not including SU. */
+	size_t block;
+
+	struct ecma119_tree_node *parent;
+	struct iso_tree_node *iso_self;
+	struct ecma119_write_target *target;
+
+	struct susp_info susp;
+
+	int type;			/**< file or directory */
+  /*	union {*/
+		struct ecma119_dir_info dir;
+		struct ecma119_file_info file;
+  /*	};*/
+};
+
+/**
+ * Create a new ecma119_tree that corresponds to the tree represented by
+ * \p iso_root.
+ */
+struct ecma119_tree_node*
+ecma119_tree_create(struct ecma119_write_target *target,
+		    struct iso_tree_node *iso_root);
+
+/**
+ * Free an ecma119 tree.
+ */
+void
+ecma119_tree_free(struct ecma119_tree_node *root);
+
+/**
+ * Print an ecma119 tree.
+ */
+void
+ecma119_tree_print(struct ecma119_tree_node *root, int spaces);
+
+#endif /* LIBISO_ECMA119_TREE_H */