InterlockedOr64 function
Performs an atomic OR operation on the specified LONGLONG values. The function prevents more than one thread from using the same variable simultaneously.
LONGLONG __cdecl InterlockedOr64(
_Inout_ LONGLONG volatile *Destination,
_In_ LONGLONG Value
);
Destination [in, out]
A pointer to the first operand. This value will be replaced with the result of the operation.Value [in]
The second operand.
The function returns the original value of the Destination parameter.
The interlocked functions provide a simple mechanism for synchronizing access to a variable that is shared by multiple threads. This function is atomic with respect to calls to other interlocked functions.
This function is implemented using a compiler intrinsic where possible. For more information, see the WinBase.h header file and _InterlockedOr64.
This function generates a full memory barrier (or fence) to ensure that memory operations are completed in order.
Itanium-based systems: For performance-critical applications, use InterlockedOr64Acquire or InterlockedOr64Release instead.
Note This function is supported on Windows RT-based systems.
Header |
WinBase.h (include Windows.h) |