/*
  Class struct of libisoburn.

  Copyright 2007 Vreixo Formoso Lopes <metalpain2002@yahoo.es>
             and Thomas Schmitt <scdbackup@gmx.net>
*/

#ifndef Isoburn_includeD
#define Isoburn_includeD



/* for uint8_t */
#include <stdint.h>


struct isoburn {


 /* The libburn drive to which this isoburn object is related */
 /* Most isoburn calls will use a burn_drive as object handle */
 struct burn_drive *drive;

 /* -1= inappropriate media state detected */
 /* 0= libburn multi-session media, resp. undecided yet */
 /* 1= random access media */
 /* 2= standard i/o file */
 int emulation_mode;

 /* Although rarely used, libburn can operate on several */
 /* drives simultaneously. */
 /* >>> I propose to design isoburn as chain link of a list with its */
 /* >>>  start stored globally. */
 struct isoburn *prev;
 struct isoburn *next;


 /* --- My part --- */

 /* Start address as given by image examination (bytes, not blocks) */
 off_t min_start_byte;

 /* Aligned start address to be used for processing (counted in blocks) */
 int nwa;

#ifdef NIX

 /* Path for eventual stdandard i/o (see .emulation_mode) */
 char *stdio_path;

 /* File descriptor for stdandard i/o. Points to stdio_path object if not -1 */
 int stdio_fd;

#endif /* NIX */

 /* --- Vreixo's part --- */

 /* The options for reading the old image. */
 /* target_ropts.size will contain the number of blocks of the image. */
 struct ecma119_read_opts *target_ropts;

 /* Buffered ISO head from media (should that become part of ecma119_read_opts ?) */
 uint8_t target_iso_head[65536];

 /* The filesystem structure of the old image from media. */
 struct iso_volset *target_volset;

 /* The output options of the current run of libisofs. */
 /* Element .overwrite eventually points to a buffered new head */
 /* with size fields describing the new size alone, not the */
 /* new combined size counted from block 0. */
 /* (This head is to be merged with above target_iso_head.) */
 struct ecma119_source_opts *new_wopts;


};


/* Creation and disposal function */
int isoburn_new(struct isoburn **objpt, int flag);
int isoburn_destroy(struct isoburn **objpt, int flag);

/* Eventual readers for public attributes */
/* ( put into separate .h file then ) */
int isoburn_get_emulation_mode(struct isoburn *o, int *pt, int flag);
int isoburn_get_target_volset(struct isoburn *o, struct iso_volset **pt,
                              int flag);

/* List management */
int isoburn_get_prev(struct isoburn *o, struct isoburn **pt, int flag);
int isoburn_get_next(struct isoburn *o, struct isoburn **pt, int flag);
int isoburn_destroy_all(struct isoburn **objpt, int flag);
int isoburn_link(struct isoburn *o, struct isoburn *link, int flag);
int isoburn_count(struct isoburn *o, int flag);
int isoburn_by_idx(struct isoburn *o, int idx, struct isoburn **pt, int flag);
int isoburn_find_by_drive(struct isoburn **pt, struct burn_drive *d, int flag);

/* Non API inner interfaces */
int isoburn_start_emulation(struct isoburn *o, int flag);
int isoburn_new_rwopts(struct isoburn *o);
int isoburn_free_rwopts(struct isoburn *o);
int isoburn_invalidate_iso(struct isoburn *o, int flag);

#endif /* Isoburn_includeD */