[Lars H], 2011-04-01:
[hubs] is a package for communication between Tcl processes, that I started writing several years ago, but (so far) haven't gotten around to completing. I'm making the code as-is available however, since one feature — the [hubs remote interp] — that got finished seems like it could be utilised within a [GSoC] project.

The main source for hubs is
  http://abel.math.umu.se/~lars/tcl/hubs.dtx
and the documentation that exists is
  http://abel.math.umu.se/~lars/tcl/hubs.pdf
[Hubs remote interp] is a wikification of Section 8 of these. Previous sections have more information on specific protocols and interfaces in the system. The wire protocol (how messages are encoded for transmission over a channel) is also explained here on this wiki, in the "Wire Protocol" section of [Tool Protocol Language].

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