Module Lwt: cooperative light-weight threads.

Module Lwt_chan: cooperative, Pervasives-like, I/O functions

Cooperative getaddrinfo with cache (using Lwt_preemptive.detach)

Creating pools (for example pools of connections to a database).

This module allows to mix preemptive threads with Lwt cooperative threads.

Are we using an SSL socket?

set the default handler for exception occurring after a timeout.

Module Lwt_unix: thread-compatible system calls

Concurrency