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# tcl::chan::random(n) 1 tcllib "Reflected/virtual channel support"

## Name

tcl::chan::random - Random channel

## Synopsis

- package require Tcl 8.5
- package require TclOO
- package require tcl::chan::events ?1?
- package require tcl::chan::random ?1?

- ::tcl::chan::random seed

## Description

The tcl::chan::random package provides a command creating random channels, i.e. read-only channels which return an infinite stream of pseudo-random characters upon reading. This is similar to the random channels provided by the package Memchan, except that this is written in pure Tcl, not C, and uses a much simpler generator as well. 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::random seed

  This command creates a new random channel and returns its handle. The seed is a list of integer numbers used to initialize the internal feedback shift register of the generator.

## 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. 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.

## Keywords

/dev/random, random, reflected channel, tip 219, virtual channel

## Category

Channels

## Copyright

Copyright © 2009 Andreas Kupries <andreas_kupries@users.sourceforge.net>