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val join : unit Lwt.t list -> unit Lwt.t
(* [join l] wait for all threads in [l] to terminate.
If fails if one of the threads fail. *)
(****)
val iter : ('a -> unit Lwt.t) -> 'a list -> unit Lwt.t
(* [iter f l] start a thread for each element in [l]. The threads
are started according to the list order, but then can run
concurrently. It terminates when all the threads are
terminated, if all threads are successful. It fails if any of
the threads fail. *)
val map : ('a -> 'b Lwt.t) -> 'a list -> 'b list Lwt.t
(* [map f l] apply [f] to each element in [l] and collect the
results of the threads thus created. The threads are started
according to the list order, but then can run concurrently.
[map f l] fails if any of the threads fail. *)
val map_with_waiting_action :
('a -> 'b Lwt.t) -> ('a -> unit) -> 'a list -> 'b list Lwt.t
(* [map_with_waiting_action f wa l] apply [f] to each element *)
(* in [l] and collect the results of the threads thus created. *)
(* The threads are started according to the list order, but *)
(* then can run concurrently. The difference with [map f l] is *)
(* that function wa will be called on the element that the *)
(* function is waiting for its termination. *)
val map_serial : ('a -> 'b Lwt.t) -> 'a list -> 'b list Lwt.t
(* Similar to [map] but wait for one thread to terminate before
starting the next one. *)
(****)
type region
val make_region : int -> region
(* [make_region sz] create a region of size [sz]. *)
val resize_region : region -> int -> unit
(* [resize_region reg sz] resize the region [reg] to size [sz]. *)
val run_in_region : region -> int -> (unit -> 'a Lwt.t) -> 'a Lwt.t
(* [run_in_region reg size f] execute the thread produced by the
function [f] in the region [reg]. The thread is not started
before some room is available in the region. *)
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