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InterlockedOr routine

The InterlockedOr routine atomically computes a bitwise OR operation.

Syntax


LONG InterlockedOr(
  _Inout_  LONG volatile *Destination,
  _In_     LONG Value
);

Parameters

Destination [in, out]

A pointer to the variable to be ORed with Value. The result of the operation is stored in the variable.

Value [in]

Specifies the value to be ORed with the variable that is pointed to by Destination.

Return value

InterlockedOr returns the original value stored in the variable pointed to by Destination.

Remarks

InterlockedOr atomically computes *Destination|=Value.

Interlocked operations cannot be used on non-cached memory.

Requirements

Header

Wdm.h (include Wdm.h, Ntddk.h, or Ntifs.h)

IRQL

Any level

See also

InterlockedAnd
InterlockedXor

 

 

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