audk/ShellPkg/Application/Shell/FileHandleWrappers.h

88 lines
2.3 KiB
C

/** @file
EFI_FILE_PROTOCOL wrappers for other items (Like Environment Variables, StdIn, StdOut, StdErr, etc...)
Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef _SHELL_FILE_HANDLE_WRAPPERS_HEADER_
#define _SHELL_FILE_HANDLE_WRAPPERS_HEADER_
typedef struct {
LIST_ENTRY Link;
CHAR16* Buffer;
} SHELL_LINE_LIST;
typedef struct {
UINTN LogCount;
SHELL_LINE_LIST *Log;
} SHELL_LINE_LOG;
///
/// FILE styte interfaces for StdIn.
///
extern EFI_FILE_PROTOCOL FileInterfaceStdIn;
///
/// FILE styte interfaces for StdOut.
///
extern EFI_FILE_PROTOCOL FileInterfaceStdOut;
///
/// FILE styte interfaces for StdErr.
///
extern EFI_FILE_PROTOCOL FileInterfaceStdErr;
///
/// FILE style interface for NUL file.
///
extern EFI_FILE_PROTOCOL FileInterfaceNulFile;
/**
Creates a EFI_FILE_PROTOCOL (almost) object for using to access
environment variables through file operations.
@param EnvName The name of the Environment Variable to be operated on.
@retval NULL Memory could not be allocated.
@return other a pointer to an EFI_FILE_PROTOCOL structure
**/
EFI_FILE_PROTOCOL*
CreateFileInterfaceEnv(
CONST CHAR16 *EnvName
);
/**
Creates a EFI_FILE_PROTOCOL (almost) object for using to access
a file entirely in memory through file operations.
@param[in] Unicode TRUE if the data is UNICODE, FALSE otherwise.
@retval NULL Memory could not be allocated.
@return other a pointer to an EFI_FILE_PROTOCOL structure
**/
EFI_FILE_PROTOCOL*
CreateFileInterfaceMem(
IN CONST BOOLEAN Unicode
);
/**
Creates a EFI_FILE_PROTOCOL (almost) object for using to access
a file entirely with unicode awareness through file operations.
@param[in] Template The pointer to the handle to start with.
@param[in] Unicode TRUE if the data is UNICODE, FALSE otherwise.
@retval NULL Memory could not be allocated.
@return other a pointer to an EFI_FILE_PROTOCOL structure
**/
EFI_FILE_PROTOCOL*
CreateFileInterfaceFile(
IN CONST EFI_FILE_PROTOCOL *Template,
IN CONST BOOLEAN Unicode
);
#endif //_SHELL_FILE_HANDLE_WRAPPERS_HEADER_