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libisofs/src/node.h

92 lines
2.2 KiB

/*
* Copyright (c) 2007 Vreixo Formoso
*
* This file is part of the libisofs project; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation. See COPYING file for details.
*/
#ifndef LIBISO_NODE_H_
#define LIBISO_NODE_H_
/*
* Definitions for the public iso tree
*/
#include "libisofs.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
/**
* The type of an IsoNode.
*/
enum IsoNodeType {
LIBISO_DIR,
LIBISO_FILE,
LIBISO_SYMLINK,
LIBISO_SPECIAL,
LIBISO_BOOT
};
/**
*
*/
struct Iso_Node
{
/*
* Initilized to 1, originally owned by user, until added to another node.
* Then it is owned by the parent node, so the user must take his own ref
* if needed. With the exception of the creation functions, none of the
* other libisofs functions that return an IsoNode increment its
* refcount. This is responsablity of the client, if (s)he needs it.
*/
int refcount;
/**< Type of the IsoNode, do not confuse with mode */
enum IsoNodeType type;
char *name; /**< Real name, supossed to be in UTF-8 */
mode_t mode; /**< protection */
uid_t uid; /**< user ID of owner */
gid_t gid; /**< group ID of owner */
/* TODO #00001 : consider adding new timestamps */
time_t atime; /**< time of last access */
time_t mtime; /**< time of last modification */
time_t ctime; /**< time of last status change */
struct IsoDir *parent; /**< parent node, NULL for root */
/*
* Pointers to the doubled linked list of children in a dir.
* It is a circular list where the last child points to the first
* and viceversa.
*/
IsoNode *prev;
IsoNode *next;
};
struct Iso_Dir
{
IsoNode node;
size_t nchildren; /**< The number of children of this directory. */
struct IsoNode *children; /**< list of children. ptr to first child */
};
struct Iso_File
{
IsoNode node;
/**
* It sorts the order in which the file data is written to the CD image.
* Higher weighting filesare written at the beginning of image
*/
int sort_weight;
};
#endif /*LIBISO_NODE_H_*/