Async Data Structures

Bounded Queues

tmc::qu_spsc_bounded	SPSC queue
tmc::qu_mpsc_bounded	MPSC queue

Unbounded Queues

tmc::qu_spsc_unbounded	SPSC queue
tmc::qu_mpsc_unbounded	MPSC queue
tmc::channel	MPMC queue. accessed via chan_tok hazard pointer + shared ownership handle