90 lines
3 KiB
C
90 lines
3 KiB
C
/*
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* Copyright (c) 2015 Grzegorz Kostka (kostka.grzegorz@gmail.com)
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* Copyright (c) 2015 Kaho Ng (ngkaho1234@gmail.com)
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* - The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/** @addtogroup lwext4
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* @{
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*/
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/**
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* @file ext4_trans.h
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* @brief Transaction handle functions
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*/
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#ifndef EXT4_TRANS_H
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#define EXT4_TRANS_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <ext4_config.h>
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#include <ext4_types.h>
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/**@brief Mark a buffer dirty and add it to the current transaction.
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* @param buf buffer
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* @return standard error code*/
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int ext4_trans_set_block_dirty(struct ext4_buf *buf);
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/**@brief Block get function (through cache, don't read).
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* jbd_trans_get_access would be called in order to
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* get write access to the buffer.
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* @param bdev block device descriptor
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* @param b block descriptor
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* @param lba logical block address
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* @return standard error code*/
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int ext4_trans_block_get_noread(struct ext4_blockdev *bdev,
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struct ext4_block *b,
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uint64_t lba);
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/**@brief Block get function (through cache).
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* jbd_trans_get_access would be called in order to
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* get write access to the buffer.
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* @param bdev block device descriptor
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* @param b block descriptor
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* @param lba logical block address
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* @return standard error code*/
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int ext4_trans_block_get(struct ext4_blockdev *bdev,
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struct ext4_block *b,
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uint64_t lba);
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/**@brief Try to add block to be revoked to the current transaction.
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* @param bdev block device descriptor
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* @param lba logical block address
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* @return standard error code*/
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int ext4_trans_try_revoke_block(struct ext4_blockdev *bdev,
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uint64_t lba);
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#ifdef __cplusplus
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}
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#endif
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#endif /* EXT4_TRANS_H */
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/**
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* @}
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*/
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