FatPkg/EnhancedFatDxe: Make the comments align with EDKIIcoding style
Cc: Ruiyu Ni <ruiyu.ni@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Dandan Bi <dandan.bi@intel.com> Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
This commit is contained in:
@@ -1,4 +1,5 @@
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/*++
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/** @file
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Functions that perform file read/write.
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Copyright (c) 2005 - 2015, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials are licensed and made available
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@@ -10,44 +11,29 @@ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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Module Name:
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ReadWrite.c
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Abstract:
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Functions that perform file read/write
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Revision History
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--*/
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**/
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#include "Fat.h"
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/**
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Get the file's position of the file.
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@param FHand - The handle of file.
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@param Position - The file's position of the file.
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@retval EFI_SUCCESS - Get the info successfully.
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@retval EFI_DEVICE_ERROR - Can not find the OFile for the file.
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@retval EFI_UNSUPPORTED - The open file is not a file.
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**/
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EFI_STATUS
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EFIAPI
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FatGetPosition (
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IN EFI_FILE_PROTOCOL *FHand,
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OUT UINT64 *Position
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)
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/*++
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Routine Description:
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Get the file's position of the file.
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Arguments:
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FHand - The handle of file.
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Position - The file's position of the file.
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Returns:
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EFI_SUCCESS - Get the info successfully.
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EFI_DEVICE_ERROR - Can not find the OFile for the file.
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EFI_UNSUPPORTED - The open file is not a file.
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--*/
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{
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FAT_IFILE *IFile;
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FAT_OFILE *OFile;
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@@ -67,30 +53,24 @@ Returns:
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return EFI_SUCCESS;
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}
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/**
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Set the file's position of the file.
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@param FHand - The handle of file.
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@param Position - The file's position of the file.
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@retval EFI_SUCCESS - Set the info successfully.
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@retval EFI_DEVICE_ERROR - Can not find the OFile for the file.
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@retval EFI_UNSUPPORTED - Set a directory with a not-zero position.
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**/
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EFI_STATUS
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EFIAPI
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FatSetPosition (
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IN EFI_FILE_PROTOCOL *FHand,
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IN UINT64 Position
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)
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/*++
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Routine Description:
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Set the file's position of the file.
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Arguments:
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FHand - The handle of file.
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Position - The file's position of the file.
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Returns:
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EFI_SUCCESS - Set the info successfully.
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EFI_DEVICE_ERROR - Can not find the OFile for the file.
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EFI_UNSUPPORTED - Set a directory with a not-zero position.
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--*/
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{
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FAT_IFILE *IFile;
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FAT_OFILE *OFile;
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@@ -130,30 +110,24 @@ Returns:
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return EFI_SUCCESS;
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}
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/**
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Get the file info from the open file of the IFile into Buffer.
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@param IFile - The instance of the open file.
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@param BufferSize - Size of Buffer.
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@param Buffer - Buffer containing read data.
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@retval EFI_SUCCESS - Get the file info successfully.
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@retval other - An error occurred when operation the disk.
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**/
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EFI_STATUS
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FatIFileReadDir (
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IN FAT_IFILE *IFile,
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IN OUT UINTN *BufferSize,
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OUT VOID *Buffer
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)
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/*++
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Routine Description:
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Get the file info from the open file of the IFile into Buffer.
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Arguments:
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IFile - The instance of the open file.
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BufferSize - Size of Buffer.
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Buffer - Buffer containing read data.
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Returns:
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EFI_SUCCESS - Get the file info successfully.
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other - An error occurred when operation the disk.
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--*/
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{
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EFI_STATUS Status;
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FAT_OFILE *OFile;
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@@ -205,6 +179,24 @@ Done:
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return Status;
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}
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/**
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Get the file info from the open file of the IFile into Buffer.
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@param FHand - The file handle to access.
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@param IoMode - Indicate whether the access mode is reading or writing.
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@param BufferSize - Size of Buffer.
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@param Buffer - Buffer containing read data.
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@param Token - A pointer to the token associated with the transaction.
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@retval EFI_SUCCESS - Get the file info successfully.
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@retval EFI_DEVICE_ERROR - Can not find the OFile for the file.
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@retval EFI_VOLUME_CORRUPTED - The file type of open file is error.
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@retval EFI_WRITE_PROTECTED - The disk is write protect.
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@retval EFI_ACCESS_DENIED - The file is read-only.
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@return other - An error occurred when operating on the disk.
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**/
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EFI_STATUS
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FatIFileAccess (
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IN EFI_FILE_PROTOCOL *FHand,
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@@ -213,30 +205,6 @@ FatIFileAccess (
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IN OUT VOID *Buffer,
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IN EFI_FILE_IO_TOKEN *Token
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)
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/*++
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Routine Description:
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Get the file info from the open file of the IFile into Buffer.
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Arguments:
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FHand - The file handle to access.
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IoMode - Indicate whether the access mode is reading or writing.
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BufferSize - Size of Buffer.
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Buffer - Buffer containing read data.
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Token - A pointer to the token associated with the transaction.
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Returns:
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EFI_SUCCESS - Get the file info successfully.
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EFI_DEVICE_ERROR - Can not find the OFile for the file.
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EFI_VOLUME_CORRUPTED - The file type of open file is error.
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EFI_WRITE_PROTECTED - The disk is write protect.
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EFI_ACCESS_DENIED - The file is read-only.
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other - An error occurred when operating on the disk.
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--*/
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{
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EFI_STATUS Status;
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FAT_IFILE *IFile;
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@@ -373,6 +341,21 @@ Done:
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return Status;
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}
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/**
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Get the file info.
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@param FHand - The handle of the file.
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@param BufferSize - Size of Buffer.
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@param Buffer - Buffer containing read data.
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@retval EFI_SUCCESS - Get the file info successfully.
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@retval EFI_DEVICE_ERROR - Can not find the OFile for the file.
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@retval EFI_VOLUME_CORRUPTED - The file type of open file is error.
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@return other - An error occurred when operation the disk.
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**/
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EFI_STATUS
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EFIAPI
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FatRead (
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@@ -380,59 +363,50 @@ FatRead (
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IN OUT UINTN *BufferSize,
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OUT VOID *Buffer
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)
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/*++
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Routine Description:
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Get the file info.
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Arguments:
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FHand - The handle of the file.
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BufferSize - Size of Buffer.
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Buffer - Buffer containing read data.
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Returns:
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EFI_SUCCESS - Get the file info successfully.
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EFI_DEVICE_ERROR - Can not find the OFile for the file.
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EFI_VOLUME_CORRUPTED - The file type of open file is error.
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other - An error occurred when operation the disk.
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--*/
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{
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return FatIFileAccess (FHand, ReadData, BufferSize, Buffer, NULL);
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}
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/**
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Get the file info.
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@param FHand - The handle of the file.
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@param Token - A pointer to the token associated with the transaction.
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@retval EFI_SUCCESS - Get the file info successfully.
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@retval EFI_DEVICE_ERROR - Can not find the OFile for the file.
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@retval EFI_VOLUME_CORRUPTED - The file type of open file is error.
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@return other - An error occurred when operation the disk.
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**/
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EFI_STATUS
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EFIAPI
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FatReadEx (
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IN EFI_FILE_PROTOCOL *FHand,
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IN OUT EFI_FILE_IO_TOKEN *Token
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)
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/*++
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Routine Description:
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Get the file info.
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Arguments:
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FHand - The handle of the file.
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Token - A pointer to the token associated with the transaction.
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Returns:
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EFI_SUCCESS - Get the file info successfully.
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EFI_DEVICE_ERROR - Can not find the OFile for the file.
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EFI_VOLUME_CORRUPTED - The file type of open file is error.
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other - An error occurred when operation the disk.
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--*/
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{
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return FatIFileAccess (FHand, ReadData, &Token->BufferSize, Token->Buffer, Token);
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}
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/**
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Write the content of buffer into files.
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@param FHand - The handle of the file.
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@param BufferSize - Size of Buffer.
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@param Buffer - Buffer containing write data.
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@retval EFI_SUCCESS - Set the file info successfully.
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@retval EFI_WRITE_PROTECTED - The disk is write protect.
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@retval EFI_ACCESS_DENIED - The file is read-only.
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@retval EFI_DEVICE_ERROR - The OFile is not valid.
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@retval EFI_UNSUPPORTED - The open file is not a file.
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- The writing file size is larger than 4GB.
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@return other - An error occurred when operation the disk.
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**/
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EFI_STATUS
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EFIAPI
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FatWrite (
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@@ -440,62 +414,49 @@ FatWrite (
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IN OUT UINTN *BufferSize,
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IN VOID *Buffer
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)
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/*++
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Routine Description:
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Write the content of buffer into files.
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Arguments:
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FHand - The handle of the file.
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BufferSize - Size of Buffer.
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Buffer - Buffer containing write data.
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Returns:
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EFI_SUCCESS - Set the file info successfully.
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EFI_WRITE_PROTECTED - The disk is write protect.
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EFI_ACCESS_DENIED - The file is read-only.
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EFI_DEVICE_ERROR - The OFile is not valid.
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EFI_UNSUPPORTED - The open file is not a file.
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- The writing file size is larger than 4GB.
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other - An error occurred when operation the disk.
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--*/
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{
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return FatIFileAccess (FHand, WriteData, BufferSize, Buffer, NULL);
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}
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/**
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Get the file info.
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@param FHand - The handle of the file.
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@param Token - A pointer to the token associated with the transaction.
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@retval EFI_SUCCESS - Get the file info successfully.
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@retval EFI_DEVICE_ERROR - Can not find the OFile for the file.
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@retval EFI_VOLUME_CORRUPTED - The file type of open file is error.
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@return other - An error occurred when operation the disk.
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**/
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EFI_STATUS
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EFIAPI
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FatWriteEx (
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IN EFI_FILE_PROTOCOL *FHand,
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IN OUT EFI_FILE_IO_TOKEN *Token
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)
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/*++
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Routine Description:
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Get the file info.
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Arguments:
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FHand - The handle of the file.
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Token - A pointer to the token associated with the transaction.
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Returns:
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EFI_SUCCESS - Get the file info successfully.
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EFI_DEVICE_ERROR - Can not find the OFile for the file.
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EFI_VOLUME_CORRUPTED - The file type of open file is error.
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other - An error occurred when operation the disk.
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--*/
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{
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return FatIFileAccess (FHand, WriteData, &Token->BufferSize, Token->Buffer, Token);
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}
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/**
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This function reads data from a file or writes data to a file.
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It uses OFile->PosRem to determine how much data can be accessed in one time.
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@param OFile - The open file.
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@param IoMode - Indicate whether the access mode is reading or writing.
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@param Position - The position where data will be accessed.
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@param DataBufferSize - Size of Buffer.
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@param UserBuffer - Buffer containing data.
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@param Task point to task instance.
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@retval EFI_SUCCESS - Access the data successfully.
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@return other - An error occurred when operating on the disk.
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**/
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EFI_STATUS
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FatAccessOFile (
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IN FAT_OFILE *OFile,
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@@ -505,27 +466,6 @@ FatAccessOFile (
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IN OUT UINT8 *UserBuffer,
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IN FAT_TASK *Task
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)
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/*++
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Routine Description:
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This function reads data from a file or writes data to a file.
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It uses OFile->PosRem to determine how much data can be accessed in one time.
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Arguments:
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OFile - The open file.
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IoMode - Indicate whether the access mode is reading or writing.
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Position - The position where data will be accessed.
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DataBufferSize - Size of Buffer.
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UserBuffer - Buffer containing data.
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Returns:
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EFI_SUCCESS - Access the data successfully.
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other - An error occurred when operating on the disk.
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--*/
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{
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FAT_VOLUME *Volume;
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UINTN Len;
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@@ -579,28 +519,22 @@ Returns:
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return Status;
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}
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/**
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Expand OFile by appending zero bytes at the end of OFile.
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@param OFile - The open file.
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@param ExpandedSize - The number of zero bytes appended at the end of the file.
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@retval EFI_SUCCESS - The file is expanded successfully.
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@return other - An error occurred when expanding file.
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**/
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EFI_STATUS
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FatExpandOFile (
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IN FAT_OFILE *OFile,
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IN UINT64 ExpandedSize
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)
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/*++
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Routine Description:
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Expand OFile by appending zero bytes at the end of OFile.
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Arguments:
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OFile - The open file.
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ExpandedSize - The number of zero bytes appended at the end of the file.
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Returns:
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EFI_SUCCESS - The file is expanded successfully.
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other - An error occurred when expanding file.
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--*/
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{
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EFI_STATUS Status;
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UINTN WritePos;
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@@ -614,29 +548,23 @@ Returns:
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return Status;
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}
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/**
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Write zero pool from the WritePos to the end of OFile.
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@param OFile - The open file to write zero pool.
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@param WritePos - The number of zero bytes written.
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@retval EFI_SUCCESS - Write the zero pool successfully.
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@retval EFI_OUT_OF_RESOURCES - Not enough memory to perform the operation.
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@return other - An error occurred when writing disk.
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**/
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EFI_STATUS
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FatWriteZeroPool (
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IN FAT_OFILE *OFile,
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IN UINTN WritePos
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)
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/*++
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Routine Description:
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Write zero pool from the WritePos to the end of OFile.
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Arguments:
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OFile - The open file to write zero pool.
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WritePos - The number of zero bytes written.
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Returns:
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EFI_SUCCESS - Write the zero pool successfully.
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EFI_OUT_OF_RESOURCES - Not enough memory to perform the operation.
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other - An error occurred when writing disk.
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--*/
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{
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EFI_STATUS Status;
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VOID *ZeroBuffer;
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@@ -676,28 +604,22 @@ Returns:
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return Status;
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}
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/**
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Truncate the OFile to smaller file size.
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@param OFile - The open file.
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@param TruncatedSize - The new file size.
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@retval EFI_SUCCESS - The file is truncated successfully.
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@return other - An error occurred when truncating file.
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**/
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EFI_STATUS
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FatTruncateOFile (
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IN FAT_OFILE *OFile,
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IN UINTN TruncatedSize
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)
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/*++
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Routine Description:
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Truncate the OFile to smaller file size.
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Arguments:
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OFile - The open file.
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TruncatedSize - The new file size.
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Returns:
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EFI_SUCCESS - The file is truncated successfully.
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other - An error occurred when truncating file.
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--*/
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{
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OFile->FileSize = TruncatedSize;
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return FatShrinkEof (OFile);
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|
Reference in New Issue
Block a user