libuuid
Jan Dvorak <mordae@anilinux.org>
Interface to the libuuid library usable to generate high-quality UUIDs.
(require libuuid) | package: libuuid |
procedure
(uuid-generate) → string?
> (uuid-generate) "777b7386-1060-4167-9922-99a7ba364795"
> (uuid-generate) "b9822388-52af-4f30-8425-40434aa4a729"
procedure
Can be used to prevent any chance of host’s MAC address leaking, at the cost of slightly higher chance of generating non-unique identifiers if the worst-case situation arises on multiple hosts.
> (uuid-generate/random) "207fff60-f55a-4f36-9367-791f9073deea"
> (uuid-generate/random) "cafb0ed5-f269-44f3-89e5-8ccaa5331a96"
procedure
Could potentially produce non-uniqueue identifiers if used concurrently so if you do not absolutely need sequential identifiers, stick with the generic (and safe) uuid-generate function above.
> (uuid-generate/time) "b2a751cc-704d-11f0-bfef-c1609b205601"
> (uuid-generate/time) "b2a758b6-704d-11f0-bfef-c1609b205601"