The Fixnum is gone as of Ruby-2.4

[zblsv]

https://github.com/boazsegev/iodine/blob/e5560c5455a00a5d58acc3b690536191c8e19893/ext/iodine/iodine_defer.c#LL270C3-L270C40

It seems to me that this check cannot be passed. On Ruby-3.2.2 I have milliseconds must be a number. (TypeError) when I call Iodine.run-every milliseconds: 15000.

[zblsv]

Sorry, according to https://github.com/ruby/ruby/blob/cc68d692f80bde4336bbefa2c0872f2a63064edb/doc/extension.rdoc T_FIXNUM is not gone despite of Fixnum is gone.

[Jan Biedermann]

milliseconds is not a kwarg, just the first arg:
Iodine.run-every 15000

[zblsv]

Yes, I realized my mistake, thank you.
Iodine.run_every(15000, 5) { pp Time.now }