>
> __forceinline void Lock(volatile LONG *hPtr)
> {
> int iValue;
>
> for (;;) {
> iValue = _InterlockedExchange((LPLONG)hPtr, 1);
> if (iValue == 0)
> return;
> while (*hPtr);
> }
> }
>
> Please show me how I can write this to spinlock without using volatile.
this code is broken, at the very minimum that while (*hPtr); needs to be
"while (*hPtr) cpu_relax();" for hardware reasons.
At which point you can drop the volatile entirely without any change.
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