Re: Why CSST?

On Thu, 31 May 2007 11:55:21 -0400 Art Celestini <spambait@xxxxxxxxxxxxx>
wrote:

:>It uses a different serialization mechanism than PLO. From the POPs:

I saw that.

The question was as to the need - what MVS (or VM or Linux) function has this
need?

:>Programming Notes:

:>1. COMPARE AND SWAP AND STORE may be used in conjunction with other
:> COMPARE AND SWAP or COMPARE DOUBLE AND SWAP instructions to
:> manipulate locks, queue pointers, or other fields that require
:> interlocked updates.

:>2. COMPARE AND SWAP AND STORE should not be used to manipulate
:> fields that are also manipulated by PERFORM LOCKED OPERATION.

--
Binyamin Dissen <bdissen@xxxxxxxxxxxxxxxxxx>
http://www.dissensoftware.com

Director, Dissen Software, Bar & Grill - Israel


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