85 lines
2.5 KiB
C
85 lines
2.5 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_FILESRC_H_
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#define LIBISO_FILESRC_H_
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#include "libisofs.h"
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#include "stream.h"
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#include "ecma119.h"
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#include <stdint.h>
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struct Iso_File_Src
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{
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unsigned int prev_img :1; /**< if the file comes from a previous image */
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uint32_t block; /**< Block where this file will be written on image */
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int sort_weight;
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IsoStream *stream;
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};
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int iso_file_src_cmp(const void *n1, const void *n2);
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/**
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* Create a new IsoFileSrc to get data from a specific IsoFile.
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*
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* The IsoFileSrc will be cached in a tree to prevent the same file for
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* being written several times to image. If you call again this function
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* with a node that refers to the same source file, the previously
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* created one will be returned. No new IsoFileSrc is created in that case.
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*
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* @param img
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* The image where this file is to be written
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* @param file
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* The IsoNode we want to write
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* @param src
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* Will be filled with a pointer to the IsoFileSrc
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* @return
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* 1 on success, < 0 on error
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*/
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int iso_file_src_create(Ecma119Image *img, IsoFile *file, IsoFileSrc **src);
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/**
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* Add a given IsoFileSrc to the given image target.
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*
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* The IsoFileSrc will be cached in a tree to prevent the same file for
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* being written several times to image. If you call again this function
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* with a node that refers to the same source file, the previously
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* created one will be returned.
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*
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* @param img
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* The image where this file is to be written
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* @param new
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* The IsoFileSrc to add
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* @param src
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* Will be filled with a pointer to the IsoFileSrc really present in
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* the tree. It could be different than new if the same file already
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* exists in the tree.
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* @return
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* 1 on success, 0 if file already exists on tree, < 0 error
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*/
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int iso_file_src_add(Ecma119Image *img, IsoFileSrc *new, IsoFileSrc **src);
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/**
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* Free the IsoFileSrc especific data
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*/
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void iso_file_src_free(void *node);
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/**
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* Get the size of the file this IsoFileSrc represents
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*/
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off_t iso_file_src_get_size(IsoFileSrc *file);
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/**
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* Create a Writer for file contents.
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*
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* It takes care of written the files in the correct order.
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*/
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int iso_file_src_writer_create(Ecma119Image *target);
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#endif /*LIBISO_FILESRC_H_*/
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