module Lwt_pool: sig .. end
Creating pools (for example pools of connections to a database).
Instead of creating a new connection each time you need one,
keep a pool of opened connections and reuse opened connections
that are free.
type 'a t
Type of pools
val create : int ->
?check:('a -> (bool -> unit) -> unit) -> (unit -> 'a Lwt.t) -> 'a t
create n f creates a new pool with at most n members.
f is the function to use to create a new pool member.
val use : 'a t -> ('a -> 'b Lwt.t) -> 'b Lwt.t
use p f takes one free member of the pool p and gives it to the function
f.