bionic (3) tcllib_zero.3tcl.gz

Provided by: tcllib_1.19-dfsg-2_all bug

NAME
       tcl::chan::zero - Zero channel


SYNOPSIS
       package require Tcl  8.5

       package require TclOO

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

       package require tcl::chan::zero  ?1?

       ::tcl::chan::zero

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DESCRIPTION
       The  tcl::chan::zero  package  provides  a  command creating zero channels, i.e. read-only channels which
       return an infinite stream of null characters upon reading.  This  is  equivalent  to  the  zero  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::null 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::zero
              This command creates a new zero 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  [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.


KEYWORDS
       /dev/zero, reflected channel, tip 219, virtual channel, zero


CATEGORY
       Channels


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