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) "bb047568-7252-4b1a-b39b-339c4cc464a6"
> (uuid-generate) "825f3ed1-64c8-4779-93f6-36969eb0ebbf"
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) "994c338b-c1d4-47bb-9f71-a9494c204323"
> (uuid-generate/random) "700f7305-ee79-4d42-a8ae-107871b0d2ab"
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) "63947786-5cfc-11f0-8b7e-83462163c402"
> (uuid-generate/time) "6394b282-5cfc-11f0-8b7e-83462163c402"