TestAndClearBit.c File Reference

#include <Base.h>
#include <Library/SynchronizationLib.h>

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Functions
INT32 EFIAPI	TestAndClearBit (IN INT32 Bit, IN VOID *Address)

Detailed Description

Implementation of TestAndClearBit using compare-exchange primitive

Copyright (C) 2015, Linaro Ltd. Copyright (c) 2015, Intel Corporation. All rights reserved.

SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file TestAndClearBit.c.

Function Documentation

TestAndClearBit()

INT32 EFIAPI TestAndClearBit	(	IN INT32	Bit,
		IN VOID *	Address
	)

Atomically test and clear a bit.

Parameters

Bit	Bit index to test in *Address
Address	The Address to the buffer that contain the bit to test.

Returns

Value of the Bit before it was cleared.

Definition at line 16 of file TestAndClearBit.c.