/* * Copyright (c) 2015 Grzegorz Kostka (kostka.grzegorz@gmail.com) * 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. */  #include <ext4_config.h>#include <ext4_blockdev.h>#include <ext4_errno.h>  /**********************BLOCKDEV INTERFACE**************************************/static int blockdev_open(struct ext4_blockdev *bdev);static int blockdev_bread(struct ext4_blockdev *bdev, void *buf, uint64_t blk_id,			 uint32_t blk_cnt);static int blockdev_bwrite(struct ext4_blockdev *bdev, const void *buf,			  uint64_t blk_id, uint32_t blk_cnt);static int blockdev_close(struct ext4_blockdev *bdev);static int blockdev_lock(struct ext4_blockdev *bdev);static int blockdev_unlock(struct ext4_blockdev *bdev); /******************************************************************************/EXT4_BLOCKDEV_STATIC_INSTANCE(blockdev, 512, 0, blockdev_open,			      blockdev_bread, blockdev_bwrite, blockdev_close,			      blockdev_lock, blockdev_unlock); /******************************************************************************/static int blockdev_open(struct ext4_blockdev *bdev){	/*blockdev_open: skeleton*/	return EIO;} /******************************************************************************/ static int blockdev_bread(struct ext4_blockdev *bdev, void *buf, uint64_t blk_id,			 uint32_t blk_cnt){	/*blockdev_bread: skeleton*/	return EIO;}  /******************************************************************************/static int blockdev_bwrite(struct ext4_blockdev *bdev, const void *buf,			  uint64_t blk_id, uint32_t blk_cnt){	/*blockdev_bwrite: skeleton*/	return EIO;}/******************************************************************************/static int blockdev_close(struct ext4_blockdev *bdev){	/*blockdev_close: skeleton*/	return EIO;} static int blockdev_lock(struct ext4_blockdev *bdev){	/*blockdev_lock: skeleton*/	return EIO;} static int blockdev_unlock(struct ext4_blockdev *bdev){	/*blockdev_unlock: skeleton*/	return EIO;} /******************************************************************************/struct ext4_blockdev *ext4_blockdev_get(void){	return &blockdev;}/******************************************************************************/