Make_without_alarm.Systemmodule Fiber : System_sig.FIBERType of an extra argument to connect functions used to pass through the network stack in Mirage and stdenv in EIO. This is eliminated at the service API where not needed.
module Switch : sig ... endA module used by EIO to handle cleanup tasks; unit for other platforms.
async f runs f () asynchroneously if possible, else immediately.
module Mutex : sig ... endmodule Condition : sig ... endmodule Log : sig ... endmodule Stream : Caqti_stream_sig.S with type 'a fiber := 'a Fiber.tmodule Sequencer : System_sig.SEQUENCER with type 'a fiber := 'a Fiber.t