Memory channels 2.2 -- null(n)
null - Create and manipulate null channels
SYNOPSISpackage 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.
Memory channels created by null provide no additional options to set or query.
A null channel is always writable and never readable. This means that a writable fileevent-handler will fire continuously and a readable fileevent-handler never at all. The exception to the latter is only the destruction of the channel which will cause the delivery of an eof event to a readable handler.
SEE ALSOmemchan, fifo, fifo2
KEYWORDSnull, in-memory channel, channel, i/o
|Last updated @ Mon Jan 20 14:15:59 PST 2003|
|Andreas Kupries||Last update at Mon Jan 20 14:21:53 PST 2003|