ref: dee6a10ab37fef64f47ddfadeae02a9449fb9294
dir: /include/ext4_extent.h/
/*
* Copyright (c) 2013 Grzegorz Kostka (kostka.grzegorz@gmail.com)
*
*
* HelenOS:
* Copyright (c) 2012 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 lwext4
* @{
*/
/**
* @file ext4_extent.h
* @brief More complex filesystem functions.
*/
#ifndef EXT4_EXTENT_H_
#define EXT4_EXTENT_H_
#ifdef __cplusplus
extern "C" {
#endif
#include <ext4_config.h>
#include <ext4_types.h>
#include <ext4_inode.h>
void ext4_extent_tree_init(struct ext4_inode_ref *inode_ref);
int ext4_extent_get_blocks(struct ext4_inode_ref *inode_ref, ext4_lblk_t iblock,
uint32_t max_blocks, ext4_fsblk_t *result, bool create,
uint32_t *blocks_count);
/**@brief Release all data blocks starting from specified logical block.
* @param inode_ref I-node to release blocks from
* @param iblock_from First logical block to release
* @return Error code */
int ext4_extent_remove_space(struct ext4_inode_ref *inode_ref, ext4_lblk_t from,
ext4_lblk_t to);
#ifdef __cplusplus
}
#endif
#endif /* EXT4_EXTENT_H_ */
/**
* @}
*/