I know abouit these (e.g.):
------------------------------------------------------------------------
* Module: Parallel lockfree Fifo MPMC Queue
* Version: 1.12 * Author: Amine Moulay Ramdane
* and
* modified and enhanced by Amine Moulay Ramdane
* Company: Cyber-NT Communications
*
* Email: ami...@videotron.ca
* Website: http://pages.videotron.com/aminer/
* Date: June 30, 2009
* Last update: December 11,2011
*
* Copyright ? 2009 Amine Moulay Ramdane.All rights reserved
------------------------------------------------------------------------
* free-lock queue
*
* Language: FPC Pascal v2.2.0+ / Delphi 6+
* Required switches: none
* Author: Dariusz Mazur
* Date: 20.01.2008
* Version: 0.6
* Licence: MPL or GPL *
------------------------------------------------------------------------
Perfect Classes RC
By Eli Yukelzon a.k.a Fulgore
-> pcQueue
------------------------------------------------------------------------
"FifoStram"
------------------------------------------------------------------------
(* TJpQueue ... a queue class. Also known as FIFO (First in, first out). *)
(* Joachim Pimiskern, 2004, Freeware. *)
------------------------------------------------------------------------
unit Pipe;
{ Author: Juergen Ruemmler
EMail: juer...@ruemmler-net.de
Version: 1.2 Stand: 06.01.2003
Legal issues: Copyright (C) 1998, 1999 by Juergen Ruemmler
Brockdorffstr. 27a, 22149 Hamburg, Deutschland
TPipe ist Freeware.
------------------------------------------------------------------------
Hope this helps,
-Michael
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