57 lines
1.3 KiB
C
57 lines
1.3 KiB
C
|
/*
|
||
|
|
* 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.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "libisofs.h"
|
||
|
|
#include "error.h"
|
||
|
|
|
||
|
|
#include <stdlib.h>
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Increments the reference counting of the given IsoDataSource.
|
||
|
|
*/
|
||
|
|
void iso_data_source_ref(IsoDataSource *src)
|
||
|
|
{
|
||
|
|
src->refcount++;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Decrements the reference counting of the given IsoDataSource, freeing it
|
||
|
|
* if refcount reach 0.
|
||
|
|
*/
|
||
|
|
void iso_data_source_unref(IsoDataSource *src)
|
||
|
|
{
|
||
|
|
if (--src->refcount == 0) {
|
||
|
|
src->free_data(src);
|
||
|
|
free(src);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Create a new IsoDataSource from a local file. This is suitable for
|
||
|
|
* accessing regular .iso images, or to acces drives via its block device
|
||
|
|
* and standard POSIX I/O calls.
|
||
|
|
*
|
||
|
|
* @param path
|
||
|
|
* The path of the file
|
||
|
|
* @param src
|
||
|
|
* Will be filled with the pointer to the newly created data source.
|
||
|
|
* @return
|
||
|
|
* 1 on success, < 0 on error.
|
||
|
|
*/
|
||
|
|
int iso_data_source_new_from_file(const char *path, IsoDataSource **src)
|
||
|
|
{
|
||
|
|
|
||
|
|
if (path == NULL || src == NULL) {
|
||
|
|
return ISO_MEM_ERROR;
|
||
|
|
}
|
||
|
|
|
||
|
|
//TODO implement
|
||
|
|
return -1;
|
||
|
|
}
|