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coroutine::auto(3tcl) Coroutine utilities coroutine::auto(3tcl)


coroutine::auto - Automatic event and IO coroutine awareness


package require Tcl 8.6

package require coroutine::auto 1.1.3

package require coroutine 1.1


The coroutine::auto package provides no commands or other directly visible functionality. Built on top of the package coroutine, it intercepts various builtin commands of the Tcl core to make any code using them coroutine-oblivious, i.e. able to run inside and outside of a coroutine without changes.

The commands so affected by this package are


This document, and the package it describes, will undoubtedly contain bugs and other problems. Please report such in the category coroutine of the Tcllib Trackers []. 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.


after, channel, coroutine, events, exit, gets, global, green threads, read, threads, update, vwait




Copyright (c) 2010-2014 Andreas Kupries <>
1.1.3 tcllib