Guile-Simple-ZMQ

Guile-Simple-ZMQ is a GNU Guile library providing bindings to ZMQ.

Copyright © 2018 Evgeny Panfilov <epanfilov@gmail.com>
Copyright © 2020, 2021 Mathieu Othacehe <othacehe@gnu.org>

Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved. This file is offered as-is, without any warranty.

Requirements

Guile-Simple-ZMQ requires the following to be installed:

• GNU Guile >= 2.0.11
• ZMQ

Installation

Guile-Simple-ZMQ uses GNU autotools to create the build and installation scripts. The default install location is in `/usr/local`. From a release tarball you can run:

./configure
make
sudo make install

This will install Guile-Simple-ZMQ with the prefix `/usr/local/`. This might not be the default load path for your GNU Guile. You may choose to change the prefix to your GNU Guile’s location with `./configure –prefix=/usr` or add `/usr/local/` to GNU Guile’s load path in your `.profile` or `.bash_profile` like this (replacing 2.2 with your GNU Guile major version):

export GUILE_LOAD_PATH="/usr/local/share/guile/site/2.2${GUILE_LOAD_PATH:+:}$GUILE_LOAD_PATH"
export GUILE_LOAD_COMPILED_PATH="/usr/local/lib/guile/2.2/site-ccache${GUILE_LOAD_COMPILED_PATH:+:}$GUILE_COMPILED_LOAD_PATH"

A common issue you may encounter when installing, especially on Ubuntu and Fedora, is guild not being found when you run `configure`. This happens because the configure script finds a symbolic link to a version of guile with a version number, like guile-2.2. This then has the configure script check for guild-2.2 which does not exist. To fix this, you can provide the path to the version of guile you want to install it for.

./configure GUILE=$(which guile)

Contributing

The easiest way to start hacking on Guile-Simple-ZMQ is to install GNU Guix and run the following command:

guix environment guile-simple-zmq

To build from git:

./bootstrap
./configure
make

To run the unit tests:

make check

You can then:

• Create a pull request on github
• Send a patch to one of the maintainers

And don’t forget to add a unit test!

Example

A server waits for a client message and answers to it. They are being executed in parallel in the two different Jupyter Notebooks sessions.

The server:

The client:

License

Guile-Simple-ZMQ is licenced under GPLv3 or later. See COPYING file for details.