
[//000000001]: # (tcl::chan::fifo \- Reflected/virtual channel support)
[//000000002]: # (Generated from file 'tcllib\_fifo\.man' by tcllib/doctools with format 'markdown')
[//000000003]: # (Copyright &copy; 2009 Andreas Kupries <andreas\_kupries@users\.sourceforge\.net>)
[//000000004]: # (tcl::chan::fifo\(n\) 1 tcllib "Reflected/virtual channel support")

<hr> [ <a href="../../../../toc.md">Main Table Of Contents</a> &#124; <a
href="../../../toc.md">Table Of Contents</a> &#124; <a
href="../../../../index.md">Keyword Index</a> &#124; <a
href="../../../../toc0.md">Categories</a> &#124; <a
href="../../../../toc1.md">Modules</a> &#124; <a
href="../../../../toc2.md">Applications</a> ] <hr>

# NAME

tcl::chan::fifo \- In\-memory fifo channel

# <a name='toc'></a>Table Of Contents

  - [Table Of Contents](#toc)

  - [Synopsis](#synopsis)

  - [Description](#section1)

  - [API](#section2)

  - [Bugs, Ideas, Feedback](#section3)

  - [Keywords](#keywords)

  - [Category](#category)

  - [Copyright](#copyright)

# <a name='synopsis'></a>SYNOPSIS

package require Tcl 8\.5  
package require TclOO  
package require tcl::chan::events ?1?  
package require tcl::chan::fifo ?1?  

[__::tcl::chan::fifo__](#1)  

# <a name='description'></a>DESCRIPTION

The __tcl::chan::fifo__ package provides a command creating channels which
live purely in memory\. Access is fifo\-like, i\.e\. things are read out of the
channel in the order they were written to it\. This is equivalent to the fifo
channels provided by the package __Memchan__, 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](\.\./\.\./\.\./\.\./index\.md\#tcloo)__\.

The internal __[TclOO](\.\./\.\./\.\./\.\./index\.md\#tcloo)__ class implementing
the channel handler is a sub\-class of the
__[tcl::chan::events](\.\./virtchannel\_core/events\.md)__ framework\.

# <a name='section2'></a>API

  - <a name='1'></a>__::tcl::chan::fifo__

    This command creates a new fifo channel and returns its handle\.

# <a name='section3'></a>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 Trackers](http://core\.tcl\.tk/tcllib/reportlist)\. Please also report
any ideas for enhancements you may have for either package and/or documentation\.

When proposing code changes, please provide *unified diffs*, i\.e the output of
__diff \-u__\.

Note further that *attachments* are strongly preferred over inlined patches\.
Attachments can be made by going to the __Edit__ form of the ticket
immediately after its creation, and then using the left\-most button in the
secondary navigation bar\.

# <a name='keywords'></a>KEYWORDS

[fifo](\.\./\.\./\.\./\.\./index\.md\#fifo), [in\-memory
channel](\.\./\.\./\.\./\.\./index\.md\#in\_memory\_channel), [reflected
channel](\.\./\.\./\.\./\.\./index\.md\#reflected\_channel), [tip
219](\.\./\.\./\.\./\.\./index\.md\#tip\_219), [virtual
channel](\.\./\.\./\.\./\.\./index\.md\#virtual\_channel)

# <a name='category'></a>CATEGORY

Channels

# <a name='copyright'></a>COPYRIGHT

Copyright &copy; 2009 Andreas Kupries <andreas\_kupries@users\.sourceforge\.net>
