Manual Reference Pages - ZERO (n)
zero - Create and manipulate zero channels
package require Tcl
package require memchan
The command described here is only available in a not-yet released
version of the package. Use the CVS to get the sources.
creates a zero channel which absorbs everything written into
it. Reading from a zero channel will return the requested number of null
bytes. These channels are essentially Tcl-specific variants of the
zero device for unixoid operating systems (/dev/zero). Transferring the
generated channel between interpreters is possible but does not make
Memory channels created by zero provide one additional option to
set or query.
A zero channel is always writable and readable. This means
that all fileevent-handlers will fire continuously. To
avoid starvation of other event sources the events raised by this
channel type have a configurable delay. This option is set in
milliseconds and defaults to 5.
fifo, fifo2, memchan, null, random
channel, i/o, in-memory channel, null, zero
Copyright (c) 2004 Pat Thoyts <firstname.lastname@example.org>
|Memory channels ||ZERO (n) ||2&.2 |
Visit the GSP FreeBSD Man Page Interface.
Output converted with manServer 1.07.