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https://github.com/tianocore/edk2
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7a934d0bef
Replace traditional `#ifndef`/`#define`/`#endif` include guards with
`#pragma` once.
`#pragma once` is a widely supported preprocessor directive that
prevents header files from being included multiple times. It is
supported by all toolchains used to build edk2: GCC, Clang/LLVM, and
MSVC.
Compared to macro-based include guards, `#pragma once`:
- Eliminates the risk of macro name collisions or copy/paste errors
where two headers inadvertently use the same guard macro.
- Eliminate inconsistency in the way include guard macros are named
(e.g., some files use `__FILE_H__`, others use `FILE_H_`, etc.).
- Reduces boilerplate (three lines replaced by one).
- Avoids polluting the macro namespace with guard symbols.
- Can improve build times as the preprocessor can skip re-opening the
file entirely, rather than re-reading it to find the matching
`#endif` ("multiple-include optimization").
- Note that some compilers may already optimize traditional include
guards, by recognzining the idiomatic pattern.
This change is made acknowledging that overall portability of the
code will technically be reduced, as `#pragma once` is not part of the
C/C++ standards.
However, this is considered acceptable given:
1. edk2 already defines a subset of supported compilers in
BaseTools/Conf/tools_def.template, all of which have supported
`#pragma once` for over two decades.
2. There have been concerns raised to the project about inconsistent
include guard naming and potential macro collisions.
Approximate compiler support dates:
- MSVC: Supported since Visual C++ 4.2 (1996)
- GCC: Supported since 3.4 (2004)
(http://gnu.ist.utl.pt/software/gcc/gcc-3.4/changes.html)
- Clang (LLVM based): Since initial release in 2007
Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
115 lines
3.3 KiB
C
115 lines
3.3 KiB
C
/** @file
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Extension Form Browser Protocol provides the services that can be used to
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register the different hot keys for the standard Browser actions described in UEFI specification.
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Copyright (c) 2013 - 2018, 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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#pragma once
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#include <Protocol/FormBrowserEx.h>
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#define EDKII_FORM_BROWSER_EXTENSION2_PROTOCOL_GUID \
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{ 0xa770c357, 0xb693, 0x4e6d, { 0xa6, 0xcf, 0xd2, 0x1c, 0x72, 0x8e, 0x55, 0xb }}
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typedef struct _EDKII_FORM_BROWSER_EXTENSION2_PROTOCOL EDKII_FORM_BROWSER_EXTENSION2_PROTOCOL;
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#define BROWSER_EXTENSION2_VERSION_1 0x10000
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#define BROWSER_EXTENSION2_VERSION_1_1 0x10001
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/**
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Check whether the browser data has been modified.
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@retval TRUE Browser data is modified.
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@retval FALSE No browser data is modified.
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**/
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typedef
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BOOLEAN
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(EFIAPI *IS_BROWSER_DATA_MODIFIED)(
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VOID
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);
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/**
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Execute the action requested by the Action parameter.
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@param[in] Action Execute the request action.
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@param[in] DefaultId The default Id info when need to load default value.
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@retval EFI_SUCCESS Execute the request action succss.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EXECUTE_ACTION)(
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IN UINT32 Action,
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IN UINT16 DefaultId
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);
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/**
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Check whether required reset when exit the browser
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@retval TRUE Browser required to reset after exit.
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@retval FALSE Browser not need to reset after exit.
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**/
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typedef
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BOOLEAN
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(EFIAPI *IS_RESET_REQUIRED)(
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VOID
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);
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#define FORM_ENTRY_INFO_SIGNATURE SIGNATURE_32 ('f', 'e', 'i', 's')
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typedef struct {
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UINTN Signature;
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LIST_ENTRY Link;
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EFI_HII_HANDLE HiiHandle;
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EFI_GUID FormSetGuid;
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EFI_FORM_ID FormId;
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EFI_QUESTION_ID QuestionId;
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} FORM_ENTRY_INFO;
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#define FORM_ENTRY_INFO_FROM_LINK(a) CR (a, FORM_ENTRY_INFO, Link, FORM_ENTRY_INFO_SIGNATURE)
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#define FORM_QUESTION_ATTRIBUTE_OVERRIDE_SIGNATURE SIGNATURE_32 ('f', 'q', 'o', 's')
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typedef struct {
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UINTN Signature;
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LIST_ENTRY Link;
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EFI_QUESTION_ID QuestionId; // Find the question
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EFI_FORM_ID FormId; // Find the form
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EFI_GUID FormSetGuid; // Find the formset.
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EFI_HII_HANDLE HiiHandle; // Find the HII handle
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UINT32 Attribute; // Hide or grayout ...
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} QUESTION_ATTRIBUTE_OVERRIDE;
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#define FORM_QUESTION_ATTRIBUTE_OVERRIDE_FROM_LINK(a) CR (a, QUESTION_ATTRIBUTE_OVERRIDE, Link, FORM_QUESTION_ATTRIBUTE_OVERRIDE_SIGNATURE)
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struct _EDKII_FORM_BROWSER_EXTENSION2_PROTOCOL {
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///
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/// Version for protocol future extension.
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///
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UINT32 Version;
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SET_SCOPE SetScope;
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REGISTER_HOT_KEY RegisterHotKey;
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REGISTER_EXIT_HANDLER RegiserExitHandler;
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IS_BROWSER_DATA_MODIFIED IsBrowserDataModified;
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EXECUTE_ACTION ExecuteAction;
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///
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/// A list of type FORMID_INFO is Browser View Form History List.
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///
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LIST_ENTRY FormViewHistoryHead;
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///
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/// A list of type QUESTION_ATTRIBUTE_OVERRIDE.
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///
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LIST_ENTRY OverrideQestListHead;
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IS_RESET_REQUIRED IsResetRequired;
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};
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extern EFI_GUID gEdkiiFormBrowserEx2ProtocolGuid;
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