#include <Uefi.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/DebugLib.h>

Functions
EFI_STATUS EFIAPI	UefiBootServicesTableLibConstructor (IN EFI_HANDLE ImageHandle, IN EFI_SYSTEM_TABLE *SystemTable)

Variables
EFI_HANDLE	gImageHandle = NULL

EFI_SYSTEM_TABLE *	gST = NULL

EFI_BOOT_SERVICES *	gBS = NULL

Detailed Description

This library retrieve the EFI_BOOT_SERVICES pointer from EFI system table in library's constructor.

Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file UefiBootServicesTableLib.c.

Function Documentation

◆ UefiBootServicesTableLibConstructor()

EFI_STATUS EFIAPI UefiBootServicesTableLibConstructor	(	IN EFI_HANDLE	ImageHandle,
		IN EFI_SYSTEM_TABLE *	SystemTable
	)

The constructor function caches the pointer of Boot Services Table.

The constructor function caches the pointer of Boot Services Table through System Table. It will ASSERT() if the pointer of System Table is NULL. It will ASSERT() if the pointer of Boot Services Table is NULL. It will always return EFI_SUCCESS.

Parameters

ImageHandle	The firmware allocated handle for the EFI image.
SystemTable	A pointer to the EFI System Table.

Return values

EFI_SUCCESS The constructor always returns EFI_SUCCESS.

Definition at line 35 of file UefiBootServicesTableLib.c.

Variable Documentation

◆ gBS

EFI_BOOT_SERVICES* gBS = NULL

Cache pointer to the EFI Boot Services Table

Definition at line 17 of file UefiBootServicesTableLib.c.

◆ gImageHandle

EFI_HANDLE gImageHandle = NULL

Cache the Image Handle

Definition at line 15 of file UefiBootServicesTableLib.c.

◆ gST

EFI_SYSTEM_TABLE* gST = NULL

Cache pointer to the EFI System Table

Definition at line 16 of file UefiBootServicesTableLib.c.

Functions