91 lines
3 KiB
C
91 lines
3 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2015 Grzegorz Kostka (kostka.grzegorz@gmail.com)
|
||
|
|
* Copyright (c) 2015 Kaho Ng (ngkaho1234@gmail.com)
|
||
|
|
*
|
||
|
|
* 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_trans.h
|
||
|
|
* @brief Transaction handle functions
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef EXT4_TRANS_H
|
||
|
|
#define EXT4_TRANS_H
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include <ext4_config.h>
|
||
|
|
#include <ext4_types.h>
|
||
|
|
|
||
|
|
|
||
|
|
/**@brief Mark a buffer dirty and add it to the current transaction.
|
||
|
|
* @param buf buffer
|
||
|
|
* @return standard error code*/
|
||
|
|
int ext4_trans_set_block_dirty(struct ext4_buf *buf);
|
||
|
|
|
||
|
|
/**@brief Block get function (through cache, don't read).
|
||
|
|
* jbd_trans_get_access would be called in order to
|
||
|
|
* get write access to the buffer.
|
||
|
|
* @param bdev block device descriptor
|
||
|
|
* @param b block descriptor
|
||
|
|
* @param lba logical block address
|
||
|
|
* @return standard error code*/
|
||
|
|
int ext4_trans_block_get_noread(struct ext4_blockdev *bdev,
|
||
|
|
struct ext4_block *b,
|
||
|
|
uint64_t lba);
|
||
|
|
|
||
|
|
/**@brief Block get function (through cache).
|
||
|
|
* jbd_trans_get_access would be called in order to
|
||
|
|
* get write access to the buffer.
|
||
|
|
* @param bdev block device descriptor
|
||
|
|
* @param b block descriptor
|
||
|
|
* @param lba logical block address
|
||
|
|
* @return standard error code*/
|
||
|
|
int ext4_trans_block_get(struct ext4_blockdev *bdev,
|
||
|
|
struct ext4_block *b,
|
||
|
|
uint64_t lba);
|
||
|
|
|
||
|
|
/**@brief Try to add block to be revoked to the current transaction.
|
||
|
|
* @param bdev block device descriptor
|
||
|
|
* @param lba logical block address
|
||
|
|
* @return standard error code*/
|
||
|
|
int ext4_trans_try_revoke_block(struct ext4_blockdev *bdev,
|
||
|
|
uint64_t lba);
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* EXT4_TRANS_H */
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @}
|
||
|
|
*/
|