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This patch removed global variable usages in ShellLib. It is required when running Shell in early stage from flash. In this case global variable is read-only. All memory should be allocated from stack or heap. Signed-off-by: Maurice Ma <maurice.ma@intel.com>
61 lines
1.4 KiB
C
61 lines
1.4 KiB
C
/** @file
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A minimal command-line shell.
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Copyright (c) 2017 - 2019, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef _SHELL_H_
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#define _SHELL_H_
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#define SHELL_COMMAND_LIST_ENTRY_SIGNATURE SIGNATURE_32('S','C','L','E')
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typedef struct {
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UINT32 Signature;
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CONST SHELL_COMMAND *ShellCommand;
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LIST_ENTRY Link;
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} SHELL_COMMAND_LIST_ENTRY;
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/**
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Read a line of input from the serial port.
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@param[in] Shell shell instance
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@param[out] Buffer buffer to receive command line
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@param[in] BufferSize size (in bytes) of the buffer
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@retval EFI_SUCCESS
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@retval EFI_BUFFER_TOO_SMALL
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@retval EFI_TIMEOUT
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**/
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EFI_STATUS
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ShellReadLine (
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IN SHELL *Shell,
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OUT CHAR16 *Buffer,
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IN CONST UINTN BufferSize
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);
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/**
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Read a UINT value from the serial port.
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@param[in] Shell shell instance
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@param[out] Buffer buffer to receive command line
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@param[in] BufferSize size (in bytes) of the buffer
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@param[out] IsHex determine if the UINT is hex or decimal format
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@retval EFI_SUCCESS
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@retval EFI_BUFFER_TOO_SMALL
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@retval EFI_TIMEOUT
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**/
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EFI_STATUS
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ShellReadUintn (
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IN SHELL *Shell,
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OUT CHAR16 *Buffer,
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IN CONST UINTN BufferSize,
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OUT BOOLEAN *IsHex
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);
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#endif
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