mirror of
https://github.com/eclipse-threadx/filex.git
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95 lines
4.6 KiB
C
95 lines
4.6 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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/** File */
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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 necessary system files. */
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#include "fx_api.h"
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#include "fx_file.h"
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FX_CALLER_CHECKING_EXTERNS
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/**************************************************************************/
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/* */
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/* FUNCTION RELEASE */
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/* */
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/* _fxe_file_extended_seek 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 checks for errors in the file seek call. */
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/* */
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/* INPUT */
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/* */
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/* file_ptr File control block pointer */
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/* byte_offset Byte offset into the file */
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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_file_extended_seek Actual file seek service */
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/* */
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/* CALLED BY */
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/* */
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/* Application Code */
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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 _fxe_file_extended_seek(FX_FILE *file_ptr, ULONG64 byte_offset)
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{
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UINT status;
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/* Check for a null file pointer. */
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if (file_ptr == FX_NULL)
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{
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return(FX_PTR_ERROR);
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}
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/* Check for a valid caller. */
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FX_CALLER_CHECKING_CODE
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/* Call actual file seek service. */
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status = _fx_file_extended_seek(file_ptr, byte_offset);
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/* Seek is complete, return status. */
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return(status);
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}
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