mirror of
https://github.com/eclipse-threadx/filex.git
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112 lines
5.9 KiB
C
112 lines
5.9 KiB
C
/***************************************************************************
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* Copyright (c) 2024 Microsoft Corporation
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*
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* This program and the accompanying materials are made available under the
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* terms of the MIT License which is available at
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* https://opensource.org/licenses/MIT.
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*
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* SPDX-License-Identifier: MIT
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**************************************************************************/
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/**************************************************************************/
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/**************************************************************************/
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/** */
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/** FileX Component */
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/** */
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/** Fault Tolerant */
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/** */
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/**************************************************************************/
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/**************************************************************************/
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#define FX_SOURCE_CODE
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#include "fx_api.h"
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#include "fx_utility.h"
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#include "fx_directory.h"
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#include "fx_fault_tolerant.h"
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#ifdef FX_ENABLE_FAULT_TOLERANT
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/**************************************************************************/
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/* */
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/* FUNCTION RELEASE */
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/* */
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/* _fx_fault_tolerant_write_log_file PORTABLE C */
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/* 6.1 */
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/* AUTHOR */
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/* */
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/* William E. Lamie, Microsoft Corporation */
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/* */
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/* DESCRIPTION */
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/* */
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/* This function writes data of one sector of fault tolerant data */
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/* from memory to log file in file system. */
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/* */
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/* INPUT */
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/* */
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/* media_ptr Media control block pointer */
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/* relative_sector Relative sector number of the */
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/* log file to write to */
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/* */
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/* OUTPUT */
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/* */
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/* return status */
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/* */
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/* CALLS */
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/* */
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/* _fx_utility_logical_sector_write Write a logical sector */
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/* _fx_utility_logical_sector_flush Flush written logical sectors */
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/* */
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/* CALLED BY */
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/* */
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/* _fx_fault_tolerant_cleanup_FAT_chain */
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/* _fx_fault_tolerant_reset_log_file */
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/* _fx_fault_tolerant_set_FAT_chain */
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/* _fx_fault_tolerant_transaction_end */
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/* */
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/* RELEASE HISTORY */
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/* */
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/* DATE NAME DESCRIPTION */
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/* */
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/* 05-19-2020 William E. Lamie Initial Version 6.0 */
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/* 09-30-2020 William E. Lamie Modified comment(s), */
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/* resulting in version 6.1 */
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/* */
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/**************************************************************************/
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UINT _fx_fault_tolerant_write_log_file(FX_MEDIA *media_ptr, ULONG relative_sector)
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{
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UINT status;
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ULONG start_sector;
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/* Calculate the start sector of log file. */
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start_sector = (media_ptr -> fx_media_fault_tolerant_start_cluster - FX_FAT_ENTRY_START) *
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media_ptr -> fx_media_sectors_per_cluster +
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media_ptr -> fx_media_data_sector_start;
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/* Write sector directly. */
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status = _fx_utility_logical_sector_write(media_ptr, (ULONG64) (start_sector + relative_sector),
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media_ptr -> fx_media_fault_tolerant_memory_buffer +
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media_ptr -> fx_media_bytes_per_sector * relative_sector,
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((ULONG) 1), FX_DATA_SECTOR);
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/* Check for a bad status. */
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if (status != FX_SUCCESS)
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{
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/* Return the bad status. */
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return(status);
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}
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/* Flush the internal logical sector cache. */
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status = _fx_utility_logical_sector_flush(media_ptr, (ULONG64) start_sector, ((ULONG64) 1), FX_FALSE);
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FX_FAULT_TOLERANT_WRITE_LOG_FILE_EXTENSION
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/* Return the status. */
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return(status);
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}
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#endif /* FX_ENABLE_FAULT_TOLERANT */
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