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root/uspace/lib/ext4/include/ext4/fstypes.h

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/*
 * Copyright (c) 2011 Martin Sucha
 * Copyright (c) 2012 Frantisek Princ
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/** @addtogroup libext4
 * @{
 */

#ifndef LIBEXT4_FSTYPES_H_
#define LIBEXT4_FSTYPES_H_

#include <adt/list.h>
#include <libfs.h>
#include <loc.h>
#include "ext4/types.h"

/**
 * Type for holding an instance of mounted partition.
 */
typedef struct ext4_instance {
        link_t link;
        service_id_t service_id;
        ext4_filesystem_t *filesystem;
        unsigned int open_nodes_count;
} ext4_instance_t;

/**
 * Type for wrapping common fs_node and add some useful pointers.
 */
typedef struct ext4_node {
        ext4_instance_t *instance;
        ext4_inode_ref_t *inode_ref;
        fs_node_t *fs_node;
        ht_link_t link;
        unsigned int references;
} ext4_node_t;

#define EXT4_NODE(node) \
        ((node) ? (ext4_node_t *) (node)->data : NULL)

#endif

/**
 * @}
 */

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