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Transition FileX to Eclipse Fundation

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TiejunZhou
2024-01-02 07:35:14 +00:00
commit 14884808b5
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common/src/fx_file_best_effort_allocate.c
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/**************************************************************************/
/* */
/* Copyright (c) Microsoft Corporation. All rights reserved. */
/* */
/* This software is licensed under the Microsoft Software License */
/* Terms for Microsoft Azure RTOS. Full text of the license can be */
/* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
/* and in the root directory of this software. */
/* */
/**************************************************************************/
/**************************************************************************/
/**************************************************************************/
/** */
/** FileX Component */
/** */
/** File */
/** */
/**************************************************************************/
/**************************************************************************/
#define FX_SOURCE_CODE
/* Include necessary system files. */
#include "fx_api.h"
#include "fx_file.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _fx_file_best_effort_allocate PORTABLE C */
/* 6.1 */
/* AUTHOR */
/* */
/* William E. Lamie, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function attempts to allocate the number of consecutive */
/* clusters required to satisfy the user's request. If there are not */
/* enough clusters, the largest set of clusters are allocated and */
/* linked to the file. If there are no free clusters, an error */
/* code is returned to the caller. */
/* */
/* INPUT */
/* */
/* file_ptr File control block pointer */
/* size Number of bytes to allocate */
/* actual_size_allocated Number of bytes allocated */
/* */
/* OUTPUT */
/* */
/* return status */
/* */
/* CALLS */
/* */
/* _fx_file_extended_best_effort_allocate */
/* Allocate the largest set of */
/* clusters */
/* */
/* CALLED BY */
/* */
/* Application Code */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* 05-19-2020 William E. Lamie Initial Version 6.0 */
/* 09-30-2020 William E. Lamie Modified comment(s), */
/* resulting in version 6.1 */
/* */
/**************************************************************************/
UINT _fx_file_best_effort_allocate(FX_FILE *file_ptr, ULONG size, ULONG *actual_size_allocated)
{
UINT status;
ULONG64 temp_actual_size_allocated;
/* Call actual best effort file allocate service. */
status = _fx_file_extended_best_effort_allocate(file_ptr, (ULONG64)size, &temp_actual_size_allocated);
/* Check status. */
if (status == FX_SUCCESS)
{
*actual_size_allocated = (ULONG)temp_actual_size_allocated;
}
/* Return status to the caller. */
return(status);
}