ref: e941966c0afc9905726fb985bc235e4bbec27dbd
dir: /blockdev/blockdev.c/
/* * Copyright (c) 2015 Grzegorz Kostka ([email protected]) * 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; } /******************************************************************************/