filex
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Outline
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#define FX_SOURCE_CODE
#include "fx_api.h"
#include "fx_file.h"
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_fx_file_best_effort_allocate(FX_FILE *, ULONG, ULONG *)
Files
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SourceVuSTM32 Libraries and Samplesfilexcommon/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; }if (status == FX_SUCCESS) { ... } /* Return status to the caller. */ return(status); }{ ... }
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