Provided by: tcllib_1.15-dfsg-2_all 
NAME
tcl::chan::fifo2 - In-memory interconnected fifo channels
SYNOPSIS
package require Tcl 8.5
package require TclOO
package require tcl::chan::events ?1?
package require tcl::chan::halfpipe ?1?
package require tcl::chan::fifo2 ?1?
::tcl::chan::fifo2
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DESCRIPTION
The tcl::chan::fifo2 package provides a command creating pairs of channels which live purely in memory
and are connected to each other in a fifo manner. What is written to one half of the pair can be read
from the other half, in the same order. One particular application for this is communication between
threads, with one half of the pair moved to the thread to talk to. This is equivalent to the fifo2
channels provided by the package Mmechan, except that this is written in pure Tcl, not C. On the other
hand, Memchan is usable with Tcl 8.4 and before, whereas this package requires Tcl 8.5 or higher, and
TclOO.
The internal TclOO class implementing the channel handler is a sub-class of the tcl::chan::events
framework.
API
::tcl::chan::fifo2
This command creates a new connected pair of fifo channels and returns their handles, as a list
containing two elements.
BUGS, IDEAS, FEEDBACK
This document, and the package it describes, will undoubtedly contain bugs and other problems. Please
report such in the category virtchannel of the Tcllib SF Trackers
[http://sourceforge.net/tracker/?group_id=12883]. Please also report any ideas for enhancements you may
have for either package and/or documentation.
KEYWORDS
connected fifos, fifo, in-memory channel, inter-thread communication, reflected channel, tip 219, virtual
channel
CATEGORY
Channels
COPYRIGHT
Copyright (c) 2009 Andreas Kupries <andreas_kupries@users.sourceforge.net>