audk/ShellPkg/Library/UefiShellDebug1CommandsLib/HexEdit/DiskImage.h

/** @file
  Defines DiskImage - the view of the file that is visible at any point,
  as well as the event handlers for editing the file

  Copyright (c) 2005 - 2018, Intel Corporation. All rights reserved. <BR>
  SPDX-License-Identifier: BSD-2-Clause-Patent

**/

#ifndef _LIB_DISK_IMAGE_H_
#define _LIB_DISK_IMAGE_H_

#include "HexEditor.h"

/**
  Initialization function for HDiskImage.

  @retval EFI_SUCCESS     The operation was successful.
  @retval EFI_LOAD_ERROR  A load error occurred.
**/
EFI_STATUS
HDiskImageInit (
  VOID
  );

/**
  Cleanup function for HDiskImage.

  @retval EFI_SUCCESS           The operation was successful.
**/
EFI_STATUS
HDiskImageCleanup (
  VOID
  );

/**
  Backup function for HDiskImage. Only a few fields need to be backup.
  This is for making the Disk buffer refresh as few as possible.

  @retval EFI_SUCCESS           The operation was successful.
  @retval EFI_OUT_OF_RESOURCES  gST->ConOut of resources.
**/
EFI_STATUS
HDiskImageBackup (
  VOID
  );

/**
  Read a disk from disk into HBufferImage.

  @param[in] DeviceName   filename to read.
  @param[in] Offset       The offset.
  @param[in] Size         The size.
  @param[in] Recover      if is for recover, no information print.

  @retval EFI_SUCCESS           The operation was successful.
  @retval EFI_OUT_OF_RESOURCES  A memory allocation failed.
  @retval EFI_LOAD_ERROR        A load error occurred.
  @retval EFI_INVALID_PARAMETER A parameter was invalid.
**/
EFI_STATUS
HDiskImageRead (
  IN CONST CHAR16   *DeviceName,
  IN UINTN    Offset,
  IN UINTN    Size,
  IN BOOLEAN  Recover
  );

/**
  Save lines in HBufferImage to disk.
  NOT ALLOW TO WRITE TO ANOTHER DISK!!!!!!!!!

  @param[in] DeviceName   The device name.
  @param[in] Offset       The offset.
  @param[in] Size         The size.

  @retval EFI_SUCCESS           The operation was successful.
  @retval EFI_OUT_OF_RESOURCES  A memory allocation failed.
  @retval EFI_LOAD_ERROR        A load error occurred.
  @retval EFI_INVALID_PARAMETER A parameter was invalid.
**/
EFI_STATUS
HDiskImageSave (
  IN CHAR16 *DeviceName,
  IN UINTN  Offset,
  IN UINTN  Size
  );

#endif