Tcl Library Source Code
tcl::chan::nullzero - Reflected/virtual channel support
Not logged in
Bounty program for improvements to Tcl and certain Tcl packages.
Tcl 2018 Conference, Houston/TX, US, Oct 15-19
Send your abstracts to tclconference@googlegroups.com or submit via the online form
by Aug 20.

[ Main Table Of Contents | Table Of Contents | Keyword Index | Categories | Modules | Applications ]

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

Name

tcl::chan::nullzero - Null/Zero channel combination

Synopsis

  • package require Tcl 8.5
  • package require TclOO
  • package require tcl::chan::events ?1?
  • package require tcl::chan::nullzero ?1?

Description

The tcl::chan::nullzero package provides a command creating channels, which are a combination of null and zero devices. They immediately forget whatever is written to them, and on reading return an infinite stream of null characters.

Packages related to this are tcl::chan::null and tcl::chan::zero.

The internal TclOO class implementing the channel handler is a sub-class of the tcl::chan::events framework.

API

::tcl::chan::nullzero

This command creates a new nullzero channel and returns its handle.

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.

Category

Channels