InterlockedOrNoFence function
Performs an atomic OR operation on the specified LONG values. The operation is performed atomically, but without using memory barriers.The function prevents more than one thread from using the same variable simultaneously.
Syntax
LONG __cdecl InterlockedOrNoFence(
_Inout_ LONG volatile *Value,
_In_ LONG Mask
);
Parameters
Value [in, out]
A pointer to the first operand. This value will be replaced with the result of the operation.Mask [in]
The second operand.
Return value
The function returns the original value of the Destination parameter.
Remarks
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 _InterlockedOr_rel.
This function generates no memory barriers (or fences) and does not guarantee that independent memory operations before or after it are completed in order.
Note This function is supported on Windows RT-based systems.
Requirements
Minimum supported client |
Windows 8 [desktop apps only] |
Minimum supported server |
Windows Server 2012 [desktop apps only] |
Header |
Winnt.h (include Windows.h) |