trusty (3) null.3tcllib.gz

Provided by: tcllib_1.15-dfsg-2_all bug

NAME
       tcl::chan::null - Null channel


SYNOPSIS
       package require Tcl  8.5

       package require TclOO

       package require tcl::chan::events  ?1?

       package require tcl::chan::null  ?1?

       ::tcl::chan::null

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DESCRIPTION
       The  tcl::chan::null  package  provides  a command creating null channels, i.e. write-only channels which
       immediately forget whatever is written to them. This is equivalent to the null 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.

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

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


API
       ::tcl::chan::null
              This command creates a new null 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     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
       /dev/null, null, reflected channel, tip 219, virtual channel


CATEGORY
       Channels


       Copyright (c) 2009 Andreas Kupries <andreas_kupries@users.sourceforge.net>