NAME¶
tcl::chan::fifo2 - In-memory interconnected fifo channels
SYNOPSIS¶
package require
Tcl 8.5
package require
TclOO
package require
tcl::chan::events ?1?
package require
tcl::chan::halfpipe ?1?
package require
tcl::chan::fifo2 ?1?
::tcl::chan::fifo2
DESCRIPTION¶
The
tcl::chan::fifo2 package provides a command creating pairs of
channels which live purely in memory and are connected to each other in a fifo
manner. What is written to one half of the pair can be read from the other
half, in the same order. One particular application for this is communication
between threads, with one half of the pair moved to the thread to talk to.
This is equivalent to the fifo2 channels provided by the package
Mmechan, 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.
The internal
TclOO class implementing the channel handler is a sub-class
of the
tcl::chan::events framework.
API¶
- ::tcl::chan::fifo2
- This command creates a new connected pair of fifo channels and returns
their handles, as a list containing two elements.
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.
KEYWORDS¶
connected fifos, fifo, in-memory channel, inter-thread communication, reflected
channel, tip 219, virtual channel
CATEGORY¶
Channels
COPYRIGHT¶
Copyright (c) 2009 Andreas Kupries <andreas_kupries@users.sourceforge.net>