778e39ba3c
When computing the size of the directory structures, take care about the size taken by the RR/SUSP fields. Also, cache that size, otherwise we need to do this computation several times and it is ugly, because the CE entries need to know where the Continuation Area will be stored.
87 lines
2.2 KiB
C
87 lines
2.2 KiB
C
/*
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* Copyright (c) 2007 Vreixo Formoso
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*
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* This file is part of the libisofs project; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation. See COPYING file for details.
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*/
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#ifndef LIBISO_ECMA119_TREE_H_
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#define LIBISO_ECMA119_TREE_H_
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#include "libisofs.h"
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#include "ecma119.h"
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enum ecma119_node_type {
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ECMA119_FILE,
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ECMA119_DIR,
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ECMA119_SYMLINK,
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ECMA119_SPECIAL,
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ECMA119_PLACEHOLDER
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};
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/**
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* Struct with info about a node representing a tree
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*/
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struct ecma119_dir_info {
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/* Block where the directory entries will be written on image */
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size_t block;
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size_t nchildren;
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Ecma119Node **children;
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/*
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* Size of the dir, i.e., sum of the lengths of all directory records.
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* It is computed by calc_dir_size() [ecma119.c].
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* Note that this don't include the length of any SUSP Continuation
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* Area needed by the dir, but it includes the size of the SUSP entries
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* than fit in the directory records System Use Field.
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*/
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size_t len;
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/**
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* Real parent if the dir has been reallocated. NULL otherwise.
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*/
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Ecma119Node *real_parent;
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};
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/**
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* A node for a tree containing all the information necessary for writing
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* an ISO9660 volume.
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*/
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struct ecma119_node
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{
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/**
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* Name in ASCII, conforming to selected ISO level.
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* Version number is not include, it is added on the fly
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*/
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char *iso_name;
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Ecma119Node *parent;
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IsoNode *node; /*< reference to the iso node */
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/**< file, symlink, special, directory or placeholder */
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enum ecma119_node_type type;
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union {
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IsoFileSrc *file;
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// TODO this wastes too much memory, as dirs have much more
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// atts than other kind of files. Replace with a pointer.
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struct ecma119_dir_info dir;
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/** this field points to the relocated directory. */
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Ecma119Node *real_me;
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} info;
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};
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/**
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*
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*/
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int ecma119_tree_create(Ecma119Image *img);
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/**
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* Free an Ecma119Node, and its children if node is a dir
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*/
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void ecma119_node_free(Ecma119Node *node);
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#endif /*LIBISO_ECMA119_TREE_H_*/
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