NewJIT returns a new JIT Queue (see JIT interface).

NewSchedule returns a new Schedule (see Schedule interface).

NewSimple returns a new Simple Queue.

Base interface for Queue.

JIT is a just-in-time implementation of the Queue.

JITItem has a Time().

Schedule is an extension of the JIT Queue that allows setting a duration next to the time of an item.

ScheduleItem has a Time() and Duration().

ScheduleItemWithTimestamp has a Timestamp() and Duration().

Simple Queue implementation.