I should have googled a bit more before I sent the patch. It seems that even though xchg could be used it is not being used becasue it is slower than cmpxchg imlementation of InterlockedExchange. I thus withdraw the patch.
VH. On Tue, 31 May 2005, Christopher Faylor wrote: > On Wed, Jun 01, 2005 at 12:52:26AM +0200, Vaclav Haisman wrote: > >I think that ilockexch() in winbase.h should look like what is in my > >patch. Explicit lock prefix is not needed because xchg instruction > >sets LOCK# signal implicitly. > > A similar implementation in the linux kernel seems to disagree with you. > > cgf >
