.. _glossary: Glossary ======== .. glossary:: :sorted: daemontools A `process control system by D.J. Bernstein `_. runit A `process control system `_. launchd A `process control system used by Apple `_ as process 1 under Mac OS X. umask Abbreviation of *user mask*: sets the file mode creation mask of the current process. See `http://en.wikipedia.org/wiki/Umask `_. Superlance A package which provides various event listener implementations that plug into Supervisor which can help monitor process memory usage and crash status: `https://pypi.org/pypi/superlance/ `_.