>>>>> On Mon, 12 Mar 2007 23:28:47 -0700,
      Jason Thorpe <thorpej@shagadelic.org> said:

> There is one major difference, however.  Solaris defines "cas" as
> COMPARE-AND-SWAP, returning the previous value of the memory cell.
> I have defined it as COMPARE-AND- STORE, returning true if the ops
> succeeds, or false otherwise.  The reason for this is because some
> platforms will have extreme difficulty implementing
> COMPARE-AND-SWAP, whereas COMPARE-AND-STORE is somewhat easier for
> these platforms.

In that case, the functions should use a different name instead of
*_cas_*(), shouldn't they?
e.g.
  *_csi_* (compare and store interlocked)?
  *_cs_* (compare and store)?
-- 
soda