InterlockedDecrement - NtDoc
Native API online documentation, based on the System Informer
(formerly Process Hacker) phnt
headers
// miniport.h
LONG InterlockedDecrement(
[in, out] LONG volatile *Addend
);
View the official Windows Driver Kit DDI reference// wdm.h
LONG CDECL_NON_WVMPURE InterlockedDecrement(
[in, out] LONG volatile *Addend
);
View the official Windows Driver Kit DDI referenceNo description available.
The InterlockedDecrement routine decrements a caller-supplied variable of type LONG as an atomic operation.
Addend [in, out]A pointer to a variable to be decremented.
InterlockedDecrement returns the decremented value.
InterlockedDecrement should be used instead of ExInterlockedDecrementLong because it is both more efficient and faster.
InterlockedDecrement is implemented inline by the compiler when appropriate and possible. It does not require a spin lock and can therefore be safely used on pageable data.
InterlockedDecrement is atomic only with respect to other InterlockedXxx calls.
Interlocked operations cannot be used on non-cached memory.
The InterlockedDecrement routine decrements a caller-supplied variable of type LONG as an atomic operation.
Addend [in, out]A pointer to a variable to be decremented.
InterlockedDecrement returns the decremented value.
InterlockedDecrement should be used instead of ExInterlockedDecrementLong because it is both more efficient and faster.
InterlockedDecrement is implemented inline by the compiler when appropriate and possible. It does not require a spin lock and can therefore be safely used on pageable data.
InterlockedDecrement is atomic only with respect to other InterlockedXxx calls.
Interlocked operations cannot be used on non-cached memory.