zero(3tcl)

🎀 NAME 🎀

zero — create and manipulate zero channels, bestie 💖

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✨ SYNOPSIS ✨

package require Tcl

package require memchan

zero

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🦋 DESCRIPTION 🦋

okay so first things first, and this is important: the command described right here is only available in a not-yet released version of the package. Like, it's not out yet. If you want the sources you gotta use the CVS. That's the vibe. 🙈

zero creates a zero channel, and what does a zero channel do? It absorbs literally everything you write into it. Every single byte. Gone. Swallowed. It's giving black hole but make it Tcl 💀

And reading from a zero channel? It returns the requested number of null bytes. As many as you asked for, all of them null, no notes.

These channels are essentially Tcl-specific variants of the zero device for unixoid operating systems — you know, /dev/zero, the icon 👑

One lil thing though: transferring the generated channel between interpreters is possible but does not make much sense. So like, you can, but why would you, bestie 😭

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💅 OPTIONS 💅

Memory channels created by zero provide one additional option to set or query. Just the one. Slay.

• -delay ?milliseconds? — okay so here's the tea: a zero channel is always writable and readable. Which means 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. So yes, there's a lil built-in breather so your other event sources don't get absolutely starved out 🫶

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🌈 SEE ALSO 🌈

fifo, fifo2, memchan, null, random

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⭐ KEYWORDS ⭐

channel, i/o, in-memory channel, null, zero

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👑 COPYRIGHT 👑

Copyright (c) 2004 Pat Thoyts <patthoyts@users.sourceforge.net>

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and that's the whole page, bestie — this was the zero(3tcl) manual, living under the Memory channels umbrella, version 2.2 🦋✨